/* roulang page: index */
:root{
  --bg-deep:#050B14;
  --bg-body:#081120;
  --glass:rgba(10,18,28,.55);
  --glass-solid:rgba(8,17,32,.92);
  --glass-border:rgba(92,132,168,.22);
  --primary:#19C8FF;
  --primary-dim:rgba(25,200,255,.15);
  --accent:#B7FF2A;
  --accent-dim:rgba(183,255,42,.12);
  --secondary:#516B82;
  --text-1:#E8F3FF;
  --text-2:#9DB4C8;
  --danger:#FF5D6C;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-en:'Rajdhani','Orbitron',sans-serif;
  --radius-lg:18px;
  --radius-md:16px;
  --radius-sm:10px;
  --radius-xs:6px;
  --gap:1.5rem;
  --shadow-normal:0 10px 30px rgba(2,6,12,.35);
  --shadow-hover:0 18px 40px rgba(8,20,35,.5),0 0 0 1px rgba(25,200,255,.15);
  --header-h:72px;
  --header-h-scroll:56px;
  --section-pad:96px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-cn);
  background:var(--bg-body);
  color:var(--text-1);
  line-height:1.8;
  font-size:1rem;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .25s ease}
a:hover{color:#5cd9ff}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--section-pad) 0;position:relative}
.section-head{margin-bottom:48px}
.section-head .section-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.8rem;letter-spacing:.12em;color:var(--primary);
  text-transform:uppercase;margin-bottom:12px;
}
.section-head .section-tag::before{
  content:"";display:inline-block;width:18px;height:2px;background:var(--primary);
  border-radius:2px;
}
.section-head h2{
  font-size:clamp(1.75rem,3vw,2.25rem);
  font-weight:700;color:var(--text-1);line-height:1.3;
}
.section-head p{margin-top:10px;color:var(--text-2);max-width:640px}
@media(max-width:767.98px){
  :root{--section-pad:56px}
  .container{padding:0 18px}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;border-radius:var(--radius-sm);padding:10px 22px;
  border:1px solid transparent;transition:all .25s ease;font-size:.95rem;
  line-height:1.5;cursor:pointer;white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-primary{
  background:var(--primary);color:#032238;border-color:var(--primary);
}
.btn-primary:hover{
  background:#3dd4ff;color:#032238;transform:translateY(-2px);
  box-shadow:0 0 24px rgba(25,200,255,.45);border-color:#3dd4ff;
}
.btn-outline{
  background:transparent;color:var(--text-1);
  border-color:var(--glass-border);
}
.btn-outline:hover{
  border-color:var(--primary);color:var(--primary);transform:translateY(-2px);
  background:rgba(25,200,255,.06);
}
.btn-ghost{
  background:transparent;color:var(--primary);padding:8px 6px;border:none;
  border-radius:var(--radius-xs);
}
.btn-ghost:hover{color:#5cd9ff;background:rgba(25,200,255,.08)}
.btn-lg{padding:14px 34px;font-size:1.05rem;border-radius:12px}

/* ---------- Badges ---------- */
.badge-cat{
  display:inline-flex;align-items:center;gap:4px;
  background:var(--primary-dim);color:var(--primary);
  border:1px solid rgba(25,200,255,.3);
  border-radius:var(--radius-xs);padding:3px 10px;
  font-size:.78rem;font-weight:600;letter-spacing:.04em;
}
.badge-accent{
  display:inline-flex;align-items:center;gap:4px;
  background:var(--accent-dim);color:var(--accent);
  border:1px solid rgba(183,255,42,.35);
  border-radius:var(--radius-xs);padding:3px 10px;
  font-size:.78rem;font-weight:700;letter-spacing:.04em;
}
.badge-vip{
  position:absolute;top:12px;left:12px;z-index:3;
  background:linear-gradient(135deg,rgba(183,255,42,.9),rgba(142,210,20,.9));
  color:#1a2a05;font-size:.72rem;font-weight:800;letter-spacing:.08em;
  padding:4px 10px;border-radius:var(--radius-xs);
  box-shadow:0 4px 14px rgba(183,255,42,.35);
}

/* ---------- Header / Nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--header-h);
  background:transparent;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(92,132,168,.1);
  transition:all .3s ease;
}
.site-header.scrolled{
  height:var(--header-h-scroll);
  background:var(--glass-solid);
  border-bottom-color:rgba(92,132,168,.25);
  box-shadow:0 8px 30px rgba(2,6,12,.5);
}
.header-inner{
  height:100%;display:flex;align-items:center;justify-content:space-between;
  gap:24px;max-width:1200px;margin:0 auto;padding:0 24px;
}
.brand-logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:1.35rem;font-weight:800;color:var(--text-1);
  letter-spacing:.02em;flex-shrink:0;
}
.brand-logo:hover{color:var(--primary)}
.logo-emblem{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,var(--primary),#0a6f96);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:.95rem;color:#032238;
  box-shadow:0 0 14px rgba(25,200,255,.4);
}
.logo-name{font-size:1.25rem;font-weight:800}
.main-nav{display:flex;align-items:center;gap:6px;height:100%}
.main-nav a{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 14px;font-size:.92rem;font-weight:500;
  color:var(--text-1);border-radius:8px;
  transition:color .25s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;
  height:2px;background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .3s ease;
}
.main-nav a:hover{color:var(--primary)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--primary);font-weight:600}
.main-nav a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-search-wrap{position:relative}
.nav-search-btn{
  width:38px;height:38px;border-radius:50%;
  background:rgba(255,255,255,.06);border:1px solid var(--glass-border);
  color:var(--text-1);font-size:.9rem;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:all .25s ease;
}
.nav-search-btn:hover{
  border-color:var(--primary);color:var(--primary);
  box-shadow:0 0 14px rgba(25,200,255,.3);
}
.nav-search-box{
  position:absolute;top:calc(100% + 12px);right:0;width:260px;
  background:rgba(8,17,32,.95);border:1px solid var(--glass-border);
  border-radius:12px;padding:14px;opacity:0;visibility:hidden;
  transform:translateY(8px);transition:all .3s ease;
  box-shadow:var(--shadow-normal);z-index:20;
}
.nav-search-box.open{opacity:1;visibility:visible;transform:translateY(0)}
.nav-search-box input{
  width:100%;background:rgba(255,255,255,.05);border:1px solid var(--glass-border);
  border-radius:8px;padding:8px 12px;color:var(--text-1);font-size:.88rem;
  outline:none;transition:border-color .25s ease;
}
.nav-search-box input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(25,200,255,.15)}
.nav-search-box .search-hint{
  display:block;margin-top:8px;font-size:.72rem;color:var(--text-2);
  text-align:right;letter-spacing:.05em;
}
.nav-toggle{
  display:none;width:42px;height:42px;border:none;background:transparent;
  cursor:pointer;position:relative;z-index:1100;
}
.nav-toggle span{
  display:block;width:22px;height:2px;background:var(--text-1);
  margin:5px auto;border-radius:2px;transition:all .3s ease;
}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mobile-menu{
  position:fixed;top:0;left:0;right:0;bottom:0;z-index:1050;
  background:rgba(5,11,20,.97);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:10px;opacity:0;visibility:hidden;transition:all .35s ease;
}
.mobile-menu.open{opacity:1;visibility:visible}
.mobile-menu a{
  font-size:1.3rem;font-weight:600;color:var(--text-1);
  padding:12px 24px;border-radius:12px;transition:all .25s ease;
}
.mobile-menu a:hover{color:var(--primary);background:rgba(25,200,255,.08)}
.mobile-menu a.active{color:var(--primary)}
.mobile-menu .btn{margin-top:20px;padding:12px 32px}
@media(max-width:991.98px){
  .main-nav{display:none}
  .nav-toggle{display:block}
  .nav-actions .btn{display:none}
}

/* ---------- Hero ---------- */
.hero{
  min-height:100vh;
  display:flex;align-items:center;
  background:linear-gradient(180deg,rgba(5,11,20,.82) 0%,rgba(5,11,20,.55) 45%,var(--bg-body) 100%),
    url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  padding:calc(var(--header-h) + 40px) 0 60px;
  position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;top:-120px;right:-120px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(25,200,255,.12),transparent 65%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;bottom:40px;left:8%;width:180px;height:2px;
  background:linear-gradient(90deg,transparent,rgba(183,255,42,.6),transparent);
}
.hero-content{position:relative;z-index:2;max-width:880px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(10,18,28,.6);border:1px solid var(--glass-border);
  border-radius:30px;padding:7px 16px;font-size:.82rem;
  color:var(--text-1);letter-spacing:.1em;margin-bottom:22px;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.hero-badge i{color:var(--accent)}
.hero h1{
  font-size:clamp(2.4rem,5vw,4rem);
  font-weight:800;line-height:1.22;letter-spacing:.02em;
  color:var(--text-1);margin-bottom:22px;
}
.hero h1 .hl{
  color:var(--primary);
  text-shadow:0 0 30px rgba(25,200,255,.35);
}
.hero-sub{
  font-size:clamp(1rem,1.4vw,1.15rem);color:var(--text-2);
  line-height:1.85;max-width:640px;margin-bottom:34px;
}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:52px}
.hero-stats{
  display:flex;gap:0;flex-wrap:wrap;
  border-top:1px solid rgba(92,132,168,.18);
  padding-top:30px;max-width:680px;
}
.hero-stat{
  flex:1 1 auto;min-width:120px;padding:8px 20px 8px 0;
  position:relative;
}
.hero-stat + .hero-stat{padding-left:24px}
.hero-stat + .hero-stat::before{
  content:"";position:absolute;left:0;top:15%;bottom:15%;width:1px;
  background:linear-gradient(180deg,transparent,rgba(92,132,168,.4),transparent);
}
.hero-stat .num{
  font-family:var(--font-en);font-size:2rem;font-weight:700;
  color:var(--text-1);line-height:1.2;
}
.hero-stat .num em{
  font-style:normal;color:var(--primary);
}
.hero-stat .label{
  font-size:.82rem;color:var(--text-2);margin-top:2px;
}
@media(max-width:575.98px){
  .hero{padding-top:110px}
  .hero-stats{flex-direction:column;gap:14px}
  .hero-stat + .hero-stat{padding-left:0}
  .hero-stat + .hero-stat::before{display:none}
  .hero-cta .btn{flex:1 1 100%}
}

/* ---------- Data Trust Bar ---------- */
.data-bar{
  background:rgba(6,13,22,.8);
  border-top:1px solid rgba(92,132,168,.12);
  border-bottom:1px solid rgba(92,132,168,.12);
  padding:36px 0;
}
.data-bar .container{display:flex;justify-content:space-around;flex-wrap:wrap;gap:24px}
.data-item{text-align:center;padding:8px 16px}
.data-item .num{
  font-family:var(--font-en);font-size:clamp(2rem,4vw,2.8rem);
  font-weight:700;color:var(--text-1);line-height:1.1;
}
.data-item .num em{font-style:normal;color:var(--accent)}
.data-item .txt{
  font-size:.88rem;color:var(--text-2);margin-top:6px;letter-spacing:.05em;
}
@media(max-width:575.98px){
  .data-item{flex:1 1 45%}
}

/* ---------- Benefit Table ---------- */
.benefit-section{background:var(--bg-body)}
.benefit-wrap{
  background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid var(--glass-border);border-radius:var(--radius-lg);
  padding:36px 32px;box-shadow:var(--shadow-normal);
}
.table-scroll{overflow-x:auto;border-radius:12px}
.benefit-table{
  width:100%;min-width:640px;border-collapse:separate;border-spacing:0;
}
.benefit-table thead th{
  background:rgba(5,13,24,.9);color:var(--text-1);
  font-weight:700;font-size:.95rem;padding:18px 20px;
  text-align:center;border-bottom:1px solid var(--glass-border);
  white-space:nowrap;
}
.benefit-table thead th:first-child{
  text-align:left;font-size:.88rem;color:var(--text-2);
  border-top-left-radius:12px;
}
.benefit-table thead th:last-child{border-top-right-radius:12px}
.benefit-table thead th.col-recommend{
  position:relative;
  box-shadow:inset 0 3px 0 var(--accent),inset 0 0 0 1px rgba(183,255,42,.18);
}
.benefit-table thead th .plan-name{display:block;font-size:1rem;margin-bottom:2px}
.benefit-table thead th .plan-sub{
  display:block;font-size:.72rem;font-weight:400;color:var(--text-2);
  margin-top:2px;
}
.badge-recommend{
  display:inline-block;
  background:var(--accent);color:#1a2a05;
  font-size:.7rem;font-weight:800;letter-spacing:.06em;
  padding:2px 10px;border-radius:20px;margin-top:6px;
}
.benefit-table tbody td{
  padding:15px 20px;text-align:center;
  border-bottom:1px solid rgba(92,132,168,.1);
  font-size:.92rem;color:var(--text-2);
}
.benefit-table tbody tr:last-child td{border-bottom:none}
.benefit-table tbody td:first-child{
  text-align:left;color:var(--text-1);font-weight:500;
}
.benefit-table tbody tr:hover td{background:rgba(25,200,255,.04)}
.benefit-table tbody tr:hover td:first-child{color:var(--primary)}
.benefit-table td.recommend-cell{
  background:rgba(183,255,42,.03);
  box-shadow:inset 0 0 0 1px rgba(183,255,42,.12);
}
.benefit-table tr:hover td.recommend-cell{background:rgba(183,255,42,.06)}
.text-check{color:var(--primary)}
.text-none{color:var(--danger);opacity:.75}
@media(max-width:767.98px){
  .benefit-wrap{padding:20px 14px}
  .benefit-table thead th{padding:14px 12px}
  .benefit-table tbody td{padding:13px 12px}
}

/* ---------- Timeline ---------- */
.timeline-section{
  background:linear-gradient(180deg,var(--bg-body) 0%,rgba(8,16,28,.98) 50%,var(--bg-body) 100%);
  position:relative;
}
.timeline-section::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 80% 30%,rgba(25,200,255,.06),transparent 50%);
  pointer-events:none;
}
.level-timeline{position:relative;max-width:960px;margin:0 auto;padding:30px 0 10px}
.level-line{
  position:absolute;left:50%;top:0;bottom:0;width:2px;
  transform:translateX(-50%);
  background:linear-gradient(180deg,transparent,rgba(25,200,255,.5) 20%,rgba(183,255,42,.4) 80%,transparent);
}
.level-item{
  position:relative;width:50%;padding:0 44px;margin-bottom:46px;
}
.level-item .level-card{
  background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid var(--glass-border);border-radius:var(--radius-md);
  padding:22px 26px;transition:all .25s ease;
}
.level-item .level-card:hover{
  transform:translateY(-4px);border-color:rgba(25,200,255,.35);
  box-shadow:var(--shadow-hover);
}
.level-item.level-left{left:0;text-align:right}
.level-item.level-right{left:50%}
.level-item .level-card h3{
  font-size:1.15rem;font-weight:700;color:var(--text-1);margin-bottom:8px;
  display:flex;align-items:center;gap:10px;
}
.level-item.level-left .level-card h3{justify-content:flex-end}
.level-item.level-right .level-card h3{justify-content:flex-start}
.level-card ul{margin:0;padding:0}
.level-card ul li{
  position:relative;padding-left:16px;color:var(--text-2);
  font-size:.9rem;line-height:1.7;
}
.level-item.level-left .level-card ul li{
  padding-left:0;padding-right:16px;
}
.level-card ul li::before{
  content:"";position:absolute;left:0;top:12px;
  width:5px;height:5px;border-radius:50%;background:var(--primary);
}
.level-item.level-left .level-card ul li::before{
  left:auto;right:0;
}
.level-node{
  position:absolute;top:20px;width:56px;height:56px;
  border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:#0d1b2e;border:2px solid rgba(25,200,255,.4);
  font-family:var(--font-en);font-weight:700;font-size:.95rem;
  color:var(--text-1);z-index:2;
  box-shadow:0 0 18px rgba(25,200,255,.2);
}
.level-item.level-left .level-node{right:-28px}
.level-item.level-right .level-node{left:-28px}
.level-item.level-focus .level-node{
  border-color:var(--accent);color:var(--accent);
  box-shadow:0 0 24px rgba(183,255,42,.4);
}
.level-item.level-focus .level-card{
  border-color:rgba(183,255,42,.3);
  box-shadow:0 0 30px rgba(183,255,42,.06);
}
@media(max-width:767.98px){
  .level-line{left:22px}
  .level-item{width:100%;left:0!important;padding:0 0 0 56px;text-align:left!important}
  .level-item .level-card h3{justify-content:flex-start!important}
  .level-item.level-left .level-card ul li{
    padding-left:16px;padding-right:0;
  }
  .level-item.level-left .level-card ul li::before{left:0;right:auto}
  .level-node{left:0!important;right:auto!important;width:44px;height:44px;font-size:.8rem}
}

/* ---------- Preview Cards ---------- */
.preview-section{background:var(--bg-body)}
.preview-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.preview-card{
  background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid var(--glass-border);border-radius:var(--radius-md);
  overflow:hidden;transition:all .28s ease;display:flex;flex-direction:column;
}
.preview-card:hover{
  transform:translateY(-4px);border-color:rgba(25,200,255,.35);
  box-shadow:var(--shadow-hover);
}
.preview-cover{
  position:relative;aspect-ratio:16/10;overflow:hidden;
}
.preview-cover img{
  width:100%;height:100%;object-fit:cover;transition:transform .4s ease;
}
.preview-card:hover .preview-cover img{transform:scale(1.05)}
.preview-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,11,20,.1) 0%,rgba(5,11,20,.4) 80%);
}
.preview-blur{
  position:absolute;inset:0;z-index:2;
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  background:rgba(5,11,20,.35);
}
.preview-body{padding:22px 24px 24px;position:relative;z-index:3;flex:1}
.preview-body .badge-cat{margin-bottom:10px}
.preview-body h3{
  font-size:1.08rem;font-weight:700;color:var(--text-1);
  margin-bottom:8px;line-height:1.4;
}
.preview-body p{
  font-size:.86rem;color:var(--text-2);line-height:1.7;margin-bottom:16px;
}
.preview-body .btn{
  width:100%;padding:8px 16px;font-size:.85rem;
  border-radius:8px;
}
@media(max-width:1199.98px){
  .preview-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:575.98px){
  .preview-grid{grid-template-columns:1fr}
}

/* ---------- CMS / Latest News ---------- */
.news-section{background:rgba(6,13,22,.6);position:relative}
.news-section::before{
  content:"";position:absolute;top:0;right:0;width:360px;height:360px;
  background:radial-gradient(circle,rgba(183,255,42,.05),transparent 60%);
  pointer-events:none;
}
.news-layout{display:flex;flex-direction:column;gap:30px;position:relative;z-index:2}
.cms-feature-list{display:flex;flex-direction:column;gap:24px}
.cms-feature-item{
  display:flex;gap:24px;background:var(--glass);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid var(--glass-border);border-radius:var(--radius-md);
  overflow:hidden;padding:0;transition:all .28s ease;
}
.cms-feature-item:hover{
  border-color:rgba(25,200,255,.35);
  box-shadow:var(--shadow-hover);
}
.cms-feature-cover{
  flex:0 0 320px;min-height:200px;overflow:hidden;
}
.cms-feature-cover img{
  width:100%;height:100%;object-fit:cover;transition:transform .4s ease;
}
.cms-feature-item:hover .cms-feature-cover img{transform:scale(1.04)}
.cms-feature-body{padding:26px 28px;flex:1;display:flex;flex-direction:column}
.cms-feature-body .badge-cat{align-self:flex-start;margin-bottom:12px}
.cms-feature-body h3{
  font-size:1.25rem;font-weight:700;color:var(--text-1);
  line-height:1.45;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-feature-body h3 a{color:inherit}
.cms-feature-body h3 a:hover{color:var(--primary)}
.cms-feature-body p{
  color:var(--text-2);font-size:.92rem;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:14px;flex:1;
}
.cms-meta{
  font-family:var(--font-en);font-size:.85rem;color:var(--secondary);
  display:flex;align-items:center;gap:6px;
}
.cms-row-list{
  display:flex;flex-direction:column;
  background:rgba(8,17,32,.6);
  border:1px solid var(--glass-border);border-radius:var(--radius-md);
  overflow:hidden;
}
.cms-row-item{
  display:flex;align-items:center;gap:20px;
  padding:16px 26px;border-bottom:1px solid rgba(92,132,168,.1);
  transition:all .25s ease;
}
.cms-row-item:last-child{border-bottom:none}
.cms-row-item:hover{background:rgba(25,200,255,.04)}
.cms-row-item:hover h4 a{color:var(--primary)}
.cms-row-time{
  font-family:var(--font-en);font-size:.85rem;color:var(--text-2);
  flex-shrink:0;min-width:90px;
}
.cms-row-item h4{
  flex:1;margin:0;font-size:.95rem;font-weight:500;
}
.cms-row-item h4 a{color:var(--text-1);transition:color .2s}
.cms-row-item .badge-cat{flex-shrink:0}
.cms-empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:70px 40px;gap:18px;text-align:center;
  background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid var(--glass-border);border-radius:var(--radius-lg);
}
.cms-empty i{
  font-size:2.6rem;color:var(--primary);
  text-shadow:0 0 24px rgba(25,200,255,.4);
}
.cms-empty p{color:var(--text-2);font-size:.95rem}
@media(max-width:767.98px){
  .cms-feature-item{flex-direction:column}
  .cms-feature-cover{flex:none;aspect-ratio:16/8;min-height:auto}
  .cms-feature-body{padding:20px}
  .cms-row-item{flex-wrap:wrap;gap:8px 14px;padding:14px 18px}
  .cms-row-time{min-width:auto}
  .cms-row-item h4{flex:1 1 100%;order:3}
  .cms-row-item .badge-cat{order:2}
}
@media(max-width:991.98px){
  .cms-feature-cover{flex:0 0 240px}
}

/* ---------- FAQ ---------- */
.faq-section{background:var(--bg-body)}
.faq-wrap{max-width:840px;margin:0 auto}
.custom-accordion .accordion-item{
  background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid var(--glass-border);border-radius:var(--radius-md)!important;
  margin-bottom:14px;overflow:hidden;transition:border-color .25s ease;
}
.custom-accordion .accordion-item:focus-within{
  border-color:rgba(25,200,255,.4);
  box-shadow:0 0 0 3px rgba(25,200,255,.1);
}
.custom-accordion .accordion-button{
  background:transparent;color:var(--text-1);
  font-weight:600;font-size:1rem;padding:18px 24px;
  box-shadow:none;border:none;
}
.custom-accordion .accordion-button::after{
  background-image:none;content:"+";
  font-family:var(--font-en);font-size:1.5rem;color:var(--primary);
  transition:all .3s ease;width:auto;height:auto;display:inline-flex;
  align-items:center;justify-content:center;font-weight:300;
}
.custom-accordion .accordion-button:not(.collapsed)::after{
  content:"−";transform:none;color:var(--accent);
}
.custom-accordion .accordion-button:not(.collapsed){
  background:rgba(25,200,255,.05);color:var(--primary);
}
.custom-accordion .accordion-body{
  color:var(--text-2);font-size:.92rem;line-height:1.8;
  padding:0 24px 22px;border-top:1px solid rgba(92,132,168,.08);
  background:rgba(5,11,20,.2);
}

/* ---------- CTA ---------- */
.cta-section{
  position:relative;padding:90px 0;
  background:linear-gradient(135deg,#050B14 0%,#0a1526 60%,#061222 100%);
  overflow:hidden;
}
.cta-section::before{
  content:"";position:absolute;bottom:-80px;right:-80px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(183,255,42,.12),transparent 65%);
}
.cta-section::after{
  content:"";position:absolute;top:-60px;left:20%;
  width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(25,200,255,.1),transparent 60%);
}
.cta-inner{
  position:relative;z-index:2;text-align:center;max-width:720px;margin:0 auto;
}
.cta-inner h2{
  font-size:clamp(1.9rem,3.6vw,2.7rem);font-weight:800;color:var(--text-1);
  line-height:1.3;margin-bottom:16px;
}
.cta-inner h2 em{
  font-style:normal;color:var(--accent);
  text-shadow:0 0 30px rgba(183,255,42,.3);
}
.cta-inner p{
  color:var(--text-2);font-size:1.02rem;margin-bottom:36px;
}
.cta-btn-wrap{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.cta-btn-pulse{
  position:relative;animation:pulse-glow 2s ease-in-out infinite;
}
@keyframes pulse-glow{
  0%,100%{box-shadow:0 0 20px rgba(25,200,255,.35)}
  50%{box-shadow:0 0 40px rgba(25,200,255,.65),0 0 60px rgba(183,255,42,.15)}
}
@media(max-width:575.98px){
  .cta-section{padding:60px 0}
  .cta-btn-wrap .btn{flex:1 1 100%}
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-deep);border-top:1px solid rgba(92,132,168,.12);
  padding:64px 0 0;position:relative;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  margin-bottom:48px;
}
.footer-brand .brand-logo{margin-bottom:16px}
.footer-brand p{
  color:var(--text-2);font-size:.9rem;line-height:1.8;max-width:280px;
}
.footer-col h4{
  color:var(--text-1);font-size:.95rem;font-weight:700;
  margin-bottom:18px;letter-spacing:.06em;
  position:relative;padding-bottom:10px;
}
.footer-col h4::after{
  content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;
  background:var(--primary);border-radius:2px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{
  color:var(--text-2);font-size:.88rem;transition:all .2s ease;
  display:inline-flex;align-items:center;gap:6px;
}
.footer-col ul li a:hover{color:var(--primary);transform:translateX(3px)}
.footer-col ul li a i{font-size:.7rem;color:var(--secondary)}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;
  color:var(--text-2);font-size:.88rem;margin-bottom:12px;
}
.footer-contact li i{
  color:var(--primary);margin-top:5px;width:16px;text-align:center;
}
.footer-bottom{
  border-top:1px solid rgba(92,132,168,.1);
  padding:20px 0;text-align:center;
}
.footer-bottom p{
  color:var(--secondary);font-size:.8rem;letter-spacing:.04em;
}
.footer-bottom .domain-text{color:var(--text-2)}
@media(max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media(max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{padding-top:44px}
}

/* ---------- Misc ---------- */
.back-to-top{
  position:fixed;bottom:30px;right:30px;z-index:900;
  width:44px;height:44px;border-radius:50%;
  background:rgba(10,18,28,.8);border:1px solid var(--glass-border);
  color:var(--primary);font-size:1rem;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .3s ease;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{
  border-color:var(--primary);box-shadow:0 0 16px rgba(25,200,255,.3);
}
::selection{background:rgba(25,200,255,.25);color:var(--text-1)}

/* roulang page: category1 */
:root {
  --bg-deep: #050B14;
  --bg-body: #081120;
  --glass: rgba(10,18,28,.55);
  --glass-border: rgba(92,132,168,.22);
  --primary: #19C8FF;
  --accent: #B7FF2A;
  --secondary: #516B82;
  --text-1: #E8F3FF;
  --text-2: #9DB4C8;
  --danger: #FF5D6C;
  --radius-lg: 18px;
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-badge: 6px;
  --shadow: 0 10px 30px rgba(2,6,12,.35);
  --gap: 1.5rem;
  --font-cn: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-en: "Rajdhani", "Orbitron", sans-serif;
}
* { box-sizing: border-box; }
html, body { overflow-x: hidden; }
body {
  margin: 0;
  font-family: var(--font-cn);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-1);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: color .25s; }
a:hover { color: #5bdcff; }
img { max-width: 100%; }
button, input, select, textarea { font-family: inherit; }
.container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }
section { position: relative; }

/* Header Nav */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1080;
  height: 72px;
  background: rgba(5,11,20,.35);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(92,132,168,.16);
  transition: height .3s ease, background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  height: 56px;
  background: rgba(5,11,20,.92);
  box-shadow: 0 10px 30px rgba(2,6,12,.5);
}
.header-inner {
  max-width: 1280px;
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-emblem {
  width: 36px; height: 36px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(25,200,255,.2), rgba(183,255,42,.12));
  border: 1px solid rgba(25,200,255,.35);
  color: var(--primary);
  font-size: 16px;
  box-shadow: 0 0 16px rgba(25,200,255,.18);
}
.logo-name {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.24rem;
  letter-spacing: .04em;
  color: var(--text-1);
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.main-nav a {
  position: relative;
  padding: 8px 14px;
  font-size: .95rem;
  font-weight: 500;
  color: var(--text-2);
  border-radius: 8px;
  white-space: nowrap;
  transition: color .25s;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.main-nav a:hover { color: var(--text-1); }
.main-nav a:hover::after { transform: scaleX(1); }
.main-nav a.active { color: var(--text-1); }
.main-nav a.active::after { transform: scaleX(1); }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.nav-search-wrap { position: relative; }
.nav-search-btn {
  width: 40px; height: 40px;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  background: var(--glass);
  color: var(--text-1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .25s;
  font-size: .9rem;
}
.nav-search-btn:hover { border-color: var(--primary); color: var(--primary); box-shadow: 0 0 14px rgba(25,200,255,.25); }
.nav-search-box {
  position: absolute;
  right: 0; top: calc(100% + 10px);
  width: 320px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: rgba(8,17,32,.95);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(2,6,12,.5);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: all .25s ease;
}
.nav-search-box.open { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-search-box input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-1);
  font-size: .92rem;
}
.nav-search-box input::placeholder { color: var(--text-2); }
.search-hint { font-size: .75rem; color: var(--text-2); white-space: nowrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: .95rem;
  padding: 10px 22px;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: all .25s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--primary);
  color: #04121C;
  border-color: var(--primary);
}
.btn-primary:hover { background: #4cdeff; border-color: #4cdeff; color: #04121C; box-shadow: 0 0 20px rgba(25,200,255,.45); transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  border-color: var(--glass-border);
  color: var(--text-1);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); box-shadow: 0 0 16px rgba(25,200,255,.18); }
.btn-ghost {
  background: transparent;
  padding: 6px 4px;
  color: var(--primary);
  border: none;
}
.btn-ghost i { transition: transform .25s; }
.btn-ghost:hover { color: #5bdcff; }
.btn-ghost:hover i { transform: translateX(4px); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px; height: 40px;
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle span {
  width: 18px; height: 2px;
  background: var(--text-1);
  border-radius: 2px;
  transition: .3s;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.category-hero {
  min-height: 300px;
  padding: 160px 0 60px;
  background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  position: relative;
  display: flex;
  align-items: center;
}
.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5,11,20,.72) 0%, rgba(8,17,32,.82) 60%, var(--bg-body) 100%);
}
.category-hero .container { position: relative; z-index: 2; }
.hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  color: var(--text-2);
  margin-bottom: 18px;
}
.hero-breadcrumb a { color: var(--text-2); }
.hero-breadcrumb a:hover { color: var(--primary); }
.hero-breadcrumb i { font-size: .7rem; color: var(--secondary); }
.category-hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 800;
  letter-spacing: .02em;
  margin: 0 0 14px;
  color: var(--text-1);
}
.category-hero h1 .highlight { color: var(--primary); position: relative; }
.hero-desc {
  max-width: 560px;
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--text-2);
  margin-bottom: 0;
}

/* Section common */
.section-block { padding: 88px 0; }
.section-title-wrap { margin-bottom: 44px; }
.section-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  margin: 0;
  color: var(--text-1);
  position: relative;
  padding-left: 18px;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 5px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}
.section-sub {
  color: var(--text-2);
  font-size: .95rem;
  margin: 10px 0 0 18px;
}

/* Module A: Card Grid */
.card-grid { --bs-gutter-y: 1.5rem; }
.info-card {
  background: var(--glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  height: 100%;
  box-shadow: var(--shadow);
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.info-card:hover {
  transform: translateY(-4px);
  border-color: rgba(25,200,255,.35);
  box-shadow: 0 18px 40px rgba(8,20,35,.5), 0 0 0 1px rgba(25,200,255,.15);
}
.info-card .card-cover {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--bg-deep);
}
.info-card .card-cover img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.info-card:hover .card-cover img { transform: scale(1.04); }
.card-badge {
  position: absolute;
  top: 12px; left: 12px;
  padding: 3px 12px;
  border-radius: var(--radius-badge);
  background: rgba(5,11,20,.72);
  border: 1px solid rgba(25,200,255,.4);
  color: var(--primary);
  font-size: .75rem;
  font-weight: 600;
  backdrop-filter: blur(6px);
  letter-spacing: .03em;
}
.card-badge.accent {
  border-color: rgba(183,255,42,.4);
  color: var(--accent);
}
.info-card .card-body { padding: 20px; }
.info-card .card-title {
  font-size: 1.12rem;
  font-weight: 600;
  line-height: 1.5;
  margin: 0 0 10px;
  color: var(--text-1);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.info-card .card-text {
  font-size: .9rem;
  color: var(--text-2);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .8rem;
  color: var(--text-2);
  padding-top: 12px;
  border-top: 1px solid rgba(92,132,168,.14);
}
.card-meta span { display: inline-flex; align-items: center; gap: 5px; }
.card-meta i { color: var(--secondary); font-size: .72rem; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--primary);
  margin-top: 4px;
}
.card-link i { font-size: .75rem; transition: transform .25s; }
.card-link:hover { color: #5bdcff; }
.card-link:hover i { transform: translateX(4px); }

/* Module B: Featured rows */
.featured-item {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 56px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
  transition: border-color .25s, box-shadow .25s;
}
.featured-item:hover { border-color: rgba(25,200,255,.3); box-shadow: 0 18px 40px rgba(8,20,35,.45); }
.featured-item.reverse { flex-direction: row-reverse; }
.featured-item .featured-media {
  flex: 0 0 44%;
  aspect-ratio: 16/10;
  border-radius: 14px;
  overflow: hidden;
  background: var(--bg-deep);
  position: relative;
}
.featured-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.featured-item:hover .featured-media img { transform: scale(1.04); }
.featured-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(5,11,20,.1), rgba(5,11,20,.45));
  pointer-events: none;
}
.featured-body { flex: 1; min-width: 0; }
.featured-tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: var(--radius-badge);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .04em;
  background: rgba(183,255,42,.1);
  border: 1px solid rgba(183,255,42,.35);
  color: var(--accent);
  margin-bottom: 12px;
}
.featured-body h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-1);
  margin: 0 0 12px;
  line-height: 1.5;
}
.featured-body p {
  font-size: .95rem;
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 14px;
}
.featured-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: .82rem;
  color: var(--text-2);
  margin-bottom: 14px;
}
.featured-meta span { display: inline-flex; align-items: center; gap: 6px; }
.featured-meta i { color: var(--secondary); font-size: .75rem; }

/* Module D: FAQ */
.faq-block { background: var(--bg-deep); }
.accordion-item {
  background: var(--glass);
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-card) !important;
  margin-bottom: 16px;
  backdrop-filter: blur(8px);
  overflow: hidden;
}
.accordion-button {
  background: transparent !important;
  color: var(--text-1) !important;
  font-weight: 600;
  font-size: 1rem;
  padding: 20px 24px;
  box-shadow: none !important;
  border: none !important;
}
.accordion-button::after {
  content: "\f067";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  background: none !important;
  width: auto; height: auto;
  color: var(--primary);
  font-size: .85rem;
  transition: transform .3s ease;
}
.accordion-button:not(.collapsed)::after { content: "\f068"; transform: rotate(180deg); color: var(--accent); }
.accordion-button:focus { outline: none; box-shadow: none !important; }
.accordion-body {
  padding: 0 24px 22px;
  color: var(--text-2);
  font-size: .93rem;
  line-height: 1.8;
  border-top: 1px solid rgba(92,132,168,.1);
  padding-top: 16px;
}

/* CTA band */
.cta-band {
  padding: 70px 0;
  background: var(--bg-deep);
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  right: -10%; bottom: -80%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(183,255,42,.12), transparent 65%);
  pointer-events: none;
}
.cta-band::after {
  content: "";
  position: absolute;
  left: -5%; top: -100%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(25,200,255,.08), transparent 60%);
  pointer-events: none;
}
.cta-inner { position: relative; z-index: 2; text-align: center; }
.cta-inner h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--text-1);
  margin-bottom: 12px;
}
.cta-inner h2 em {
  font-style: normal;
  font-family: var(--font-en);
  color: var(--accent);
}
.cta-inner p { color: var(--text-2); font-size: 1rem; margin-bottom: 28px; }
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 34px;
  font-size: 1.05rem;
  font-weight: 700;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #D9FF6E);
  color: #162000;
  border: none;
  box-shadow: 0 0 30px rgba(183,255,42,.2);
  animation: pulseGlow 2.6s ease-in-out infinite;
  transition: transform .25s, box-shadow .25s;
}
.cta-btn:hover { color: #162000; transform: translateY(-2px); box-shadow: 0 0 40px rgba(183,255,42,.38); }
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(183,255,42,.16); }
  50% { box-shadow: 0 0 36px rgba(183,255,42,.32); }
}

/* Footer */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(92,132,168,.16);
  padding: 70px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(92,132,168,.1);
}
.footer-brand .brand-logo { margin-bottom: 16px; }
.footer-brand p {
  color: var(--text-2);
  font-size: .9rem;
  line-height: 1.8;
  margin: 0;
  max-width: 280px;
}
.footer-col h4 {
  font-size: .95rem;
  font-weight: 700;
  color: var(--text-1);
  margin: 8px 0 18px;
  letter-spacing: .04em;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-size: .88rem;
  color: var(--text-2);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color .25s, transform .25s;
}
.footer-col ul li a i { font-size: .68rem; color: var(--secondary); transition: color .25s, transform .25s; }
.footer-col ul li a:hover { color: var(--primary); }
.footer-col ul li a:hover i { color: var(--primary); transform: translateX(3px); }
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .88rem;
  color: var(--text-2);
  margin-bottom: 12px;
  line-height: 1.6;
}
.footer-contact li i { color: var(--primary); margin-top: 4px; }
.footer-bottom {
  padding: 22px 0;
  text-align: center;
  font-size: .82rem;
  color: var(--text-2);
}
.footer-bottom .domain-text { color: var(--secondary); }

/* Bootstrap override */
.btn { font-family: var(--font-cn); }
.accordion { --bs-accordion-border-width: 0; }
.row > * { min-width: 0; }

/* Responsive */
@media (max-width: 1024px) {
  .main-nav { gap: 0; }
  .main-nav a { padding: 8px 10px; font-size: .88rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 991px) {
  .main-nav {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(5,11,20,.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transform: translateX(100%);
    transition: transform .35s ease;
    z-index: 1070;
    padding: 80px 20px 40px;
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav a { font-size: 1.15rem; padding: 14px 20px; }
  .main-nav a::after { display: none; }
  .nav-toggle { display: flex; z-index: 1081; }
  .nav-actions .btn-primary { display: none; }
  .category-hero { min-height: 260px; padding-top: 130px; }
  .featured-item { flex-direction: column; gap: 20px; }
  .featured-item.reverse { flex-direction: column; }
  .featured-item .featured-media { flex: auto; width: 100%; }
}
@media (max-width: 768px) {
  .section-block { padding: 56px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-brand p { max-width: none; }
  .nav-search-box { width: 280px; right: -40px; }
}
@media (max-width: 575px) {
  .header-inner { padding: 0 16px; }
  .logo-name { font-size: 1.05rem; }
  .nav-search-box { right: -70px; width: 240px; }
  .category-hero { padding-top: 110px; min-height: 240px; }
  .category-hero h1 { font-size: 2rem; }
  .hero-desc { font-size: .92rem; }
  .card-meta { flex-wrap: wrap; gap: 6px 12px; }
  .featured-item { padding: 16px; }
  .info-card .card-body { padding: 16px; }
  .cta-btn { width: 100%; justify-content: center; }
}

/* roulang page: category2 */
:root {
            --bg-deep: #050B14;
            --bg-body: #081120;
            --glass: rgba(10, 18, 28, .55);
            --glass-border: rgba(92, 132, 168, .22);
            --primary: #19C8FF;
            --accent: #B7FF2A;
            --secondary: #516B82;
            --text-1: #E8F3FF;
            --text-2: #9DB4C8;
            --danger: #FF5D6C;
            --radius-lg: 18px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 10px 30px rgba(2, 6, 12, .35);
            --gap: 1.5rem;
            --font-zh: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-en: 'Rajdhani', 'Orbitron', sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-zh);
            background: var(--bg-body);
            color: var(--text-1);
            line-height: 1.8;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .25s ease;
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        .container {
            max-width: 1240px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .btn {
            border-radius: var(--radius-sm);
            font-weight: 600;
            padding: 10px 22px;
            transition: all .25s ease;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary {
            background: var(--primary);
            color: #04121F;
        }
        .btn-primary:hover {
            background: #45d6ff;
            box-shadow: 0 0 20px rgba(25, 200, 255, .45);
            transform: translateY(-2px);
            color: #04121F;
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--glass-border);
            color: var(--text-1);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(25, 200, 255, .06);
        }
        .btn-accent {
            background: var(--accent);
            color: #0A1A05;
        }
        .btn-accent:hover {
            box-shadow: 0 0 24px rgba(183, 255, 42, .4);
            transform: translateY(-2px);
            color: #0A1A05;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            height: 72px;
            background: transparent;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(92, 132, 168, .15);
            transition: all .3s ease;
        }
        .site-header.scrolled {
            height: 56px;
            background: rgba(5, 11, 20, .92);
            box-shadow: 0 8px 30px rgba(0, 0, 0, .4);
            border-bottom-color: rgba(92, 132, 168, .25);
        }
        .header-inner {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-emblem {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), #0e9bd3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #04121F;
            box-shadow: 0 0 18px rgba(25, 200, 255, .4);
        }
        .logo-name {
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: .02em;
            color: var(--text-1);
            font-family: var(--font-en);
        }
        .main-nav {
            display: flex;
            gap: 32px;
            align-items: center;
        }
        .main-nav a {
            position: relative;
            color: var(--text-2);
            font-size: .95rem;
            font-weight: 500;
            padding: 4px 0;
            transition: color .25s ease;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            height: 2px;
            width: 0;
            background: var(--accent);
            transition: width .3s ease;
            border-radius: 2px;
        }
        .main-nav a:hover {
            color: var(--text-1);
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .main-nav a.active {
            color: var(--text-1);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .nav-search-wrap {
            position: relative;
        }
        .nav-search-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-2);
            font-size: 15px;
            transition: all .25s ease;
        }
        .nav-search-btn:hover {
            color: var(--primary);
            background: rgba(25, 200, 255, .1);
        }
        .nav-search-box {
            position: absolute;
            right: 0;
            top: 48px;
            width: 300px;
            background: rgba(8, 17, 32, .95);
            border: 1px solid var(--glass-border);
            border-radius: 12px;
            padding: 10px 14px;
            display: none;
            align-items: center;
            gap: 10px;
            box-shadow: var(--shadow);
            z-index: 10;
        }
        .nav-search-box.open {
            display: flex;
        }
        .nav-search-box input {
            flex: 1;
            background: transparent;
            border: none;
            color: var(--text-1);
            font-size: .9rem;
            outline: none;
        }
        .nav-search-box input::placeholder {
            color: var(--secondary);
        }
        .search-hint {
            font-size: .75rem;
            color: var(--secondary);
            white-space: nowrap;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
        }
        .nav-toggle span {
            width: 20px;
            height: 2px;
            background: var(--text-1);
            border-radius: 2px;
            transition: all .3s ease;
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* 移动端抽屉 */
        .mobile-drawer {
            position: fixed;
            inset: 0;
            z-index: 1039;
            background: rgba(5, 11, 20, .97);
            backdrop-filter: blur(24px);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 28px;
            opacity: 0;
            visibility: hidden;
            transition: all .35s ease;
        }
        .mobile-drawer.open {
            opacity: 1;
            visibility: visible;
        }
        .mobile-drawer a {
            font-size: 1.3rem;
            color: var(--text-1);
            font-weight: 600;
            padding: 8px 0;
        }
        .mobile-drawer a.active {
            color: var(--accent);
        }
        .mobile-drawer .drawer-cta {
            margin-top: 12px;
        }

        /* ===== Hero 分类条 ===== */
        .category-hero {
            position: relative;
            padding: 160px 0 80px;
            background: linear-gradient(180deg, rgba(5, 11, 20, .78) 0%, rgba(8, 17, 32, .55) 40%, var(--bg-body) 100%);
            overflow: hidden;
        }
        .category-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: .35;
            z-index: 0;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .category-hero .hero-breadcrumb {
            font-size: .85rem;
            color: var(--text-2);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .category-hero .hero-breadcrumb a {
            color: var(--text-2);
        }
        .category-hero .hero-breadcrumb a:hover {
            color: var(--primary);
        }
        .category-hero .hero-breadcrumb i {
            font-size: .7rem;
            color: var(--secondary);
        }
        .category-hero h1 {
            font-size: clamp(2.4rem, 5vw, 3.6rem);
            font-weight: 800;
            letter-spacing: .01em;
            line-height: 1.2;
            margin-bottom: 18px;
            background: linear-gradient(135deg, var(--text-1) 40%, var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-hero h1 .accent-dot {
            color: var(--accent);
            -webkit-text-fill-color: var(--accent);
        }
        .category-hero .hero-desc {
            font-size: 1.05rem;
            color: var(--text-2);
            max-width: 600px;
            line-height: 1.75;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 18px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: var(--radius-xs);
            font-size: .8rem;
            color: var(--text-2);
            background: rgba(81, 107, 130, .18);
            border: 1px solid rgba(81, 107, 130, .3);
        }
        .hero-tag i {
            color: var(--accent);
            font-size: .7rem;
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: 90px 0;
        }
        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.25rem);
            font-weight: 700;
            margin-bottom: 42px;
            letter-spacing: .01em;
            line-height: 1.3;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .section-title::before {
            content: '';
            width: 5px;
            height: 26px;
            background: var(--accent);
            border-radius: 3px;
            display: inline-block;
        }
        .section-title .sub {
            font-size: .9rem;
            color: var(--text-2);
            font-weight: 400;
            margin-left: 6px;
        }
        .section-sub {
            font-size: .95rem;
            color: var(--text-2);
            margin-top: -28px;
            margin-bottom: 42px;
            line-height: 1.7;
            max-width: 680px;
        }

        /* ===== 玻璃卡片 ===== */
        .glass-card {
            background: var(--glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow);
            transition: all .25s ease;
        }
        .glass-card:hover {
            transform: translateY(-4px);
            border-color: rgba(25, 200, 255, .35);
            box-shadow: 0 18px 40px rgba(8, 20, 35, .5), 0 0 0 1px rgba(25, 200, 255, .15);
        }

        /* ===== 模块C: 服务资源清单 ===== */
        .resource-timeline {
            position: relative;
            padding-left: 30px;
        }
        .resource-timeline::before {
            content: '';
            position: absolute;
            left: 9px;
            top: 4px;
            bottom: 4px;
            width: 1px;
            background: linear-gradient(to bottom, var(--primary), rgba(25, 200, 255, .08));
        }
        .resource-item {
            position: relative;
            padding: 22px 0 22px 26px;
            border-bottom: 1px solid rgba(92, 132, 168, .12);
        }
        .resource-item:last-child {
            border-bottom: none;
        }
        .resource-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 30px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid rgba(25, 200, 255, .3);
            box-shadow: 0 0 12px rgba(25, 200, 255, .35);
        }
        .resource-item .item-top {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 6px;
        }
        .resource-item .item-index {
            font-family: var(--font-en);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: .05em;
        }
        .resource-item h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-1);
            margin: 0;
        }
        .resource-item .item-tags {
            display: flex;
            gap: 6px;
        }
        .resource-item .item-tags .badge {
            font-size: .72rem;
            padding: 3px 10px;
            border-radius: var(--radius-xs);
            background: rgba(25, 200, 255, .12);
            color: var(--primary);
            border: 1px solid rgba(25, 200, 255, .18);
            font-weight: 500;
        }
        .resource-item p {
            color: var(--text-2);
            font-size: .92rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 模块A: 内容卡片 ===== */
        .content-card {
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .content-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
        }
        .content-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .content-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .content-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(5, 11, 20, .75);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(25, 200, 255, .3);
            padding: 3px 12px;
            border-radius: var(--radius-xs);
            font-size: .75rem;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: .03em;
        }
        .content-card .card-body {
            padding: 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .content-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 10px;
            line-height: 1.5;
            color: var(--text-1);
        }
        .content-card .card-body p {
            color: var(--text-2);
            font-size: .88rem;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .content-card .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: .78rem;
            color: var(--secondary);
            border-top: 1px solid rgba(92, 132, 168, .12);
            padding-top: 12px;
            margin-top: auto;
        }
        .content-card .card-meta i {
            font-size: .72rem;
            margin-right: 4px;
        }

        /* ===== 模块B: 横向大图条目 ===== */
        .feature-row {
            display: flex;
            align-items: center;
            gap: 48px;
            padding: 48px 0;
            border-bottom: 1px solid rgba(92, 132, 168, .1);
        }
        .feature-row:last-child {
            border-bottom: none;
        }
        .feature-row .feature-img {
            flex: 0 0 46%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow);
        }
        .feature-row .feature-img img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .feature-row:hover .feature-img img {
            transform: scale(1.03);
        }
        .feature-row .feature-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(5, 11, 20, .4));
        }
        .feature-row .feature-content {
            flex: 1;
        }
        .feature-row .feature-tagline {
            font-family: var(--font-en);
            font-size: .8rem;
            font-weight: 600;
            letter-spacing: .12em;
            color: var(--accent);
            margin-bottom: 10px;
            text-transform: uppercase;
        }
        .feature-row h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.35;
            color: var(--text-1);
        }
        .feature-row p {
            color: var(--text-2);
            font-size: .95rem;
            line-height: 1.75;
            margin-bottom: 16px;
        }
        .feature-row .feature-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 18px;
        }
        .feature-row .feature-tags span {
            font-size: .78rem;
            padding: 3px 12px;
            border-radius: var(--radius-xs);
            background: rgba(183, 255, 42, .08);
            border: 1px solid rgba(183, 255, 42, .2);
            color: var(--accent);
        }
        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            color: var(--primary);
            font-size: .9rem;
        }
        .feature-link:hover {
            color: var(--accent);
        }
        .feature-link i {
            font-size: .8rem;
            transition: transform .3s ease;
        }
        .feature-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 模块D: FAQ ===== */
        .faq-panel {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 14px;
        }
        .faq-panel .faq-header {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 26px;
            color: var(--text-1);
            font-size: 1rem;
            font-weight: 600;
            text-align: left;
            transition: all .25s ease;
            border: none;
            background: transparent;
        }
        .faq-panel .faq-header:hover {
            color: var(--primary);
        }
        .faq-panel .faq-icon {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: rgba(25, 200, 255, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .85rem;
            color: var(--primary);
            flex-shrink: 0;
            transition: all .3s ease;
        }
        .faq-panel.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(25, 200, 255, .2);
        }
        .faq-panel .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
        }
        .faq-panel .faq-body-inner {
            padding: 0 26px 20px;
            color: var(--text-2);
            font-size: .92rem;
            line-height: 1.75;
            border-top: 1px solid rgba(92, 132, 168, .1);
            padding-top: 14px;
            margin-left: 26px;
            margin-right: 26px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 80px 0;
            background: var(--bg-deep);
            border-top: 1px solid rgba(92, 132, 168, .12);
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(183, 255, 42, .12) 0%, transparent 70%);
            bottom: -200px;
            right: -100px;
            pointer-events: none;
        }
        .cta-section .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: .01em;
        }
        .cta-section h2 .highlight {
            color: var(--accent);
        }
        .cta-section p {
            color: var(--text-2);
            font-size: 1rem;
            margin-bottom: 30px;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-pulse {
            animation: pulseGlow 2.4s ease-in-out infinite;
        }
        @keyframes pulseGlow {
            0%,
            100% {
                box-shadow: 0 0 12px rgba(25, 200, 255, .3);
            }
            50% {
                box-shadow: 0 0 28px rgba(25, 200, 255, .6);
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid rgba(92, 132, 168, .15);
            padding: 70px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 50px;
        }
        .footer-brand .brand-logo {
            margin-bottom: 14px;
        }
        .footer-brand p {
            color: var(--text-2);
            font-size: .88rem;
            line-height: 1.7;
            margin-top: 12px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-1);
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            color: var(--text-2);
            font-size: .88rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color .25s ease;
        }
        .footer-col ul a i {
            font-size: .65rem;
            color: var(--secondary);
        }
        .footer-col ul a:hover {
            color: var(--primary);
        }
        .footer-contact li {
            color: var(--text-2);
            font-size: .88rem;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .footer-contact li i {
            color: var(--primary);
            margin-top: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(92, 132, 168, .12);
            padding: 22px 0;
            text-align: center;
        }
        .footer-bottom p {
            color: var(--secondary);
            font-size: .82rem;
            margin: 0;
        }
        .footer-bottom .domain-text {
            color: rgba(157, 180, 200, .7);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-actions .btn-primary {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .feature-row {
                flex-direction: column;
                gap: 24px;
            }
            .feature-row .feature-img {
                flex: 0 0 auto;
                width: 100%;
            }
            .feature-row.row-reverse {
                flex-direction: column;
            }
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 60px 0;
            }
            .category-hero {
                padding: 130px 0 50px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .nav-search-box {
                position: fixed;
                top: 68px;
                left: 16px;
                right: 16px;
                width: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .resource-item .item-tags {
                margin-top: 4px;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: .92rem;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .resource-item {
                padding-left: 18px;
            }
            .resource-timeline {
                padding-left: 20px;
            }
            .cta-section {
                padding: 56px 0;
            }
            .cta-buttons .btn {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: article */
/* ========== 设计变量 ========== */
:root {
  --bg-deep: #050B14;
  --bg-body: #081120;
  --glass: rgba(10,18,28,.55);
  --glass-border: rgba(92,132,168,.22);
  --primary: #19C8FF;
  --accent: #B7FF2A;
  --secondary: #516B82;
  --text-1: #E8F3FF;
  --text-2: #9DB4C8;
  --danger: #FF5D6C;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-md: 0 10px 30px rgba(2,6,12,.35);
  --gap: 1.5rem;
}

/* ========== 基础重置 ========== */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(25,200,255,.07), transparent 40%),
    radial-gradient(ellipse at 80% 100%, rgba(183,255,42,.03), transparent 35%),
    var(--bg-body);
  color: var(--text-1);
  line-height: 1.8;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}
main { flex: 1; }
a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--accent); }
img { max-width: 100%; }
button { font-family: inherit; }

/* ========== 容器 ========== */
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

/* ========== 导航 ========== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: 72px;
  background: rgba(8,17,32,.62);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(92,132,168,.18);
  transition: height .3s ease, background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: rgba(5,11,20,.95);
  box-shadow: 0 8px 30px rgba(2,6,12,.5);
  height: 56px;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: .55rem;
  flex-shrink: 0;
}
.logo-emblem {
  width: 36px; height: 36px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary), rgba(25,200,255,.25));
  color: #050B14;
  font-size: 1rem;
  box-shadow: 0 0 18px rgba(25,200,255,.3);
}
.logo-name {
  font-family: 'Rajdhani', 'Orbitron', sans-serif;
  font-size: 1.32rem;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: .02em;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: .35rem;
}
.main-nav a {
  display: block;
  padding: .5rem .9rem;
  font-size: .925rem;
  font-weight: 500;
  color: var(--text-2);
  border-radius: 8px;
  position: relative;
  transition: color .2s ease;
}
.main-nav a::after {
  content: '';
  position: absolute;
  left: .8rem; right: .8rem; bottom: .1rem;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .25s ease;
}
.main-nav a:hover { color: var(--text-1); }
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }
.main-nav a.active { color: var(--text-1); }
.nav-actions { display: flex; align-items: center; gap: .75rem; }
.nav-search-wrap { position: relative; }
.nav-search-btn {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  color: var(--text-2);
  cursor: pointer;
  transition: all .2s ease;
}
.nav-search-btn:hover { color: var(--primary); border-color: var(--primary); box-shadow: 0 0 14px rgba(25,200,255,.2); }
.nav-search-box {
  position: absolute;
  top: calc(100% + 12px); right: 0;
  width: 300px;
  padding: .35rem .55rem;
  background: rgba(8,17,32,.96);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  display: flex; align-items: center; gap: .4rem;
  opacity: 0; visibility: hidden;
  transform: translateY(-6px);
  transition: opacity .25s ease, transform .25s ease, visibility .25s ease;
  z-index: 10;
}
.nav-search-box.open { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-search-box input {
  flex: 1;
  background: transparent;
  border: 0; outline: none;
  font-size: .875rem;
  color: var(--text-1);
  padding: .4rem .3rem;
}
.nav-search-box input::placeholder { color: var(--text-2); }
.search-hint { font-size: .7rem; color: var(--secondary); white-space: nowrap; padding-right: .3rem; }
.nav-toggle {
  display: none;
  width: 38px; height: 38px;
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  padding: 0;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
}
.nav-toggle span {
  width: 18px; height: 2px;
  background: var(--text-1);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

/* ========== 按钮 ========== */
.btn { border-radius: 10px; border: none; padding: 10px 22px; font-size: .925rem; font-weight: 600; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: .4rem; transition: all .25s ease; }
.btn-primary { background: var(--primary); color: #050B14; }
.btn-primary:hover { background: #6be0ff; color: #050B14; box-shadow: 0 0 22px rgba(25,200,255,.5); transform: translateY(-2px); }
.btn-outline { background: transparent; border: 1px solid var(--glass-border); color: var(--text-1); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); box-shadow: 0 0 16px rgba(25,200,255,.22); }
.btn-primary:focus, .btn-outline:focus { outline: none; box-shadow: 0 0 0 3px rgba(25,200,255,.3); }

/* ========== 面包屑 ========== */
.article-main { padding-top: 72px; }
.breadcrumb-wrap {
  position: relative;
  padding: 2.75rem 0 2.25rem;
  background: url('/assets/images/backpic/back-1.webp') center 30% / cover no-repeat;
}
.breadcrumb-wrap::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5,11,20,.78), var(--bg-body) 95%);
}
.breadcrumb-wrap .container { position: relative; z-index: 1; }
.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: .875rem;
  color: var(--text-2);
}
.breadcrumb-list li { display: flex; align-items: center; gap: .5rem; }
.breadcrumb-list a { color: var(--text-2); transition: color .2s ease; }
.breadcrumb-list a:hover { color: var(--primary); }
.breadcrumb-sep { color: var(--secondary); font-weight: 300; }
.breadcrumb-current {
  color: var(--text-1);
  max-width: 340px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
}

/* ========== 文章卡片 ========== */
.article-body-wrap { padding: 1rem 0 0; }
.article-card {
  max-width: 860px;
  margin: 0 auto;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 2.75rem 3rem;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.article-header { margin-bottom: 1.75rem; }
.article-title {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: .01em;
  margin: 0 0 1rem;
  color: var(--text-1);
  word-break: break-word;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.25rem;
  align-items: center;
  font-size: .875rem;
  color: var(--text-2);
}
.meta-item { display: inline-flex; align-items: center; gap: .35rem; }
.meta-item i { color: var(--primary); font-size: .85rem; }
.meta-category {
  background: rgba(25,200,255,.1);
  border: 1px solid rgba(25,200,255,.25);
  color: var(--primary);
  border-radius: 6px;
  padding: .15rem .65rem;
  font-size: .78rem;
  font-weight: 600;
}
.article-divider {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(25,200,255,.25), rgba(25,200,255,.02));
  margin: 1.5rem 0 0;
}

/* ========== 正文阅读区 ========== */
.article-body {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text-1);
  word-break: break-word;
}
.article-body p { margin-bottom: 1.2em; }
.article-body h2, .article-body h3, .article-body h4 {
  font-weight: 700;
  margin: 2em 0 .8em;
  color: var(--text-1);
}
.article-body h2 { font-size: 1.45rem; position: relative; padding-left: .75rem; }
.article-body h2::before {
  content: '';
  position: absolute;
  left: 0; top: .35em; bottom: .35em;
  width: 4px;
  background: var(--accent);
  border-radius: 2px;
}
.article-body h3 { font-size: 1.2rem; }
.article-body img {
  max-width: 100%;
  border-radius: var(--radius-md);
  margin: 1.5rem 0;
  box-shadow: 0 8px 24px rgba(2,6,12,.4);
}
.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: rgba(25,200,255,.06);
  padding: 1rem 1.25rem;
  border-radius: 0 12px 12px 0;
  margin: 1.5em 0;
  color: var(--text-2);
  font-style: normal;
}
.article-body ul,
.article-body ol { padding-left: 1.4rem; margin-bottom: 1.2em; }
.article-body li { margin-bottom: .4em; }
.article-body a { text-decoration: underline; text-decoration-color: rgba(25,200,255,.35); text-underline-offset: 3px; }
.article-body a:hover { text-decoration-color: var(--accent); }
.article-body table {
  width: 100%;
  margin: 1.5rem 0;
  border-collapse: collapse;
  font-size: .875rem;
  display: block;
  overflow-x: auto;
  white-space: nowrap;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
}
.article-body table th,
.article-body table td {
  border: 1px solid var(--glass-border);
  padding: .65rem .85rem;
  color: var(--text-1);
}
.article-body table th {
  background: rgba(25,200,255,.08);
  font-weight: 600;
  color: var(--text-1);
}
.article-body table tr:nth-child(even) { background: rgba(92,132,168,.06); }
.article-body code {
  background: rgba(25,200,255,.08);
  border: 1px solid rgba(25,200,255,.15);
  padding: .1rem .4rem;
  border-radius: 5px;
  font-size: .9em;
  color: var(--primary);
}
.article-body pre {
  background: #0a1420;
  border: 1px solid var(--glass-border);
  padding: 1.1rem;
  border-radius: 12px;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-size: .875rem;
  line-height: 1.7;
}
.article-body pre code {
  background: transparent;
  border: 0;
  padding: 0;
  color: #c8d9ea;
}

/* ========== 标签区 ========== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  margin-top: 2.5rem;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(92,132,168,.18);
}
.tags-label { font-size: .875rem; color: var(--text-2); margin-right: .2rem; }
.tag-badge {
  display: inline-block;
  padding: .28rem .8rem;
  font-size: .78rem;
  background: rgba(25,200,255,.08);
  border: 1px solid rgba(25,200,255,.2);
  color: var(--text-1);
  border-radius: 6px;
  transition: all .2s ease;
}
.tag-badge:hover { border-color: var(--primary); color: var(--primary); }

/* ========== 返回入口 ========== */
.article-return {
  margin-top: 2rem;
  text-align: center;
}
.article-return a {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  color: var(--text-2);
  font-size: .9rem;
  transition: color .2s ease;
}
.article-return a:hover { color: var(--primary); }
.article-return i { font-size: .8rem; }

/* ========== 空态 ========== */
.article-empty {
  max-width: 600px;
  margin: 3.5rem auto;
  text-align: center;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 4.5rem 2.5rem;
  backdrop-filter: blur(12px);
}
.empty-icon {
  width: 76px; height: 76px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(25,200,255,.08);
  border: 1px solid rgba(25,200,255,.2);
  color: var(--primary);
  font-size: 1.6rem;
  margin: 0 auto 1.5rem;
}
.article-empty h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: .75rem; color: var(--text-1); }
.article-empty p { color: var(--text-2); margin-bottom: 1.75rem; }

/* ========== 相关阅读 ========== */
.related-section {
  position: relative;
  padding: 4.5rem 0 5rem;
}
.related-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent, rgba(8,17,32,.55) 30%, rgba(8,17,32,.55) 70%, transparent);
  pointer-events: none;
}
.related-section .container { position: relative; z-index: 1; }
.section-title {
  font-size: 1.875rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: var(--text-1);
  display: flex;
  align-items: center;
  gap: .6rem;
}
.section-title::before {
  content: '';
  display: inline-block;
  width: 6px; height: 24px;
  background: var(--accent);
  border-radius: 3px;
  flex-shrink: 0;
}
.related-card {
  display: block;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 100%;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.related-card:hover {
  transform: translateY(-4px);
  border-color: rgba(25,200,255,.35);
  box-shadow: 0 18px 40px rgba(8,20,35,.5), 0 0 0 1px rgba(25,200,255,.15);
}
.related-cover { aspect-ratio: 16/10; overflow: hidden; }
.related-cover img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.related-card:hover .related-cover img { transform: scale(1.04); }
.related-info { padding: 1.25rem 1.3rem 1.4rem; }
.related-info h3 {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-1);
  margin: 0 0 .45rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-meta {
  font-size: .8rem;
  color: var(--text-2);
  display: inline-flex;
  align-items: center;
  gap: .35rem;
}
.related-meta i { font-size: .7rem; color: var(--primary); }

/* ========== 页脚 ========== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(92,132,168,.18);
  padding: 4rem 0 0;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
}
.footer-brand .brand-logo { margin-bottom: 1rem; }
.footer-brand p {
  color: var(--text-2);
  font-size: .9rem;
  line-height: 1.8;
  margin: 1rem 0 0;
  max-width: 360px;
}
.footer-col h4 {
  color: var(--text-1);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 1.2rem;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col ul li { margin-bottom: .6rem; }
.footer-col ul a {
  color: var(--text-2);
  font-size: .9rem;
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  transition: color .2s ease;
}
.footer-col ul a i { font-size: .65rem; color: var(--secondary); transition: color .2s ease, transform .2s ease; }
.footer-col ul a:hover { color: var(--primary); }
.footer-col ul a:hover i { color: var(--primary); transform: translateX(2px); }
.footer-contact li {
  color: var(--text-2);
  font-size: .9rem;
  display: flex;
  gap: .6rem;
  align-items: flex-start;
  margin-bottom: .75rem;
}
.footer-contact li i { color: var(--primary); margin-top: .25rem; }
.footer-bottom {
  border-top: 1px solid rgba(92,132,168,.15);
  padding: 1.25rem 0;
  text-align: center;
}
.footer-bottom p { margin: 0; font-size: .875rem; color: var(--text-2); }
.domain-text { color: rgba(157,180,200,.6); }

/* ========== 响应式 ========== */
@media (max-width: 991px) {
  .site-header { background: rgba(8,17,32,.9); backdrop-filter: none; }
  .header-inner { gap: 1rem; }
  .main-nav {
    position: fixed;
    inset: 0;
    background: rgba(5,11,20,.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s ease, visibility .3s ease;
  }
  .main-nav.open { opacity: 1; visibility: visible; }
  .main-nav a { font-size: 1.2rem; padding: .7rem 1.4rem; }
  .main-nav a::after { display: none; }
  .nav-actions .btn-primary { display: none; }
  .nav-toggle { display: flex; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .article-card { padding: 2rem 1.75rem; }
}
@media (max-width: 767px) {
  .header-inner { padding: 0 16px; }
  .article-main { padding-top: 64px; }
  .breadcrumb-wrap { padding: 2rem 0 1.75rem; }
  .article-card { padding: 1.5rem 1.25rem; border-radius: var(--radius-md); }
  .article-title { font-size: 1.4rem; }
  .article-meta { gap: .4rem .9rem; font-size: .8rem; }
  .related-section { padding: 3rem 0 4rem; }
  .section-title { font-size: 1.5rem; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 575px) {
  .footer-grid { grid-template-columns: 1fr; gap: 1.8rem; }
  .footer-bottom p { font-size: .8rem; }
  .nav-search-box { width: 250px; right: -10px; }
  .breadcrumb-current { max-width: 160px; }
  .article-card { padding: 1.25rem 1rem; }
  .article-tags { gap: .35rem; }
  .tag-badge { padding: .2rem .6rem; font-size: .72rem; }
  .article-body { font-size: .95rem; line-height: 1.8; }
}

/* roulang page: category3 */
:root {
  --bg-deep: #050B14;
  --bg-body: #081120;
  --glass: rgba(10,18,28,.55);
  --glass-border: rgba(92,132,168,.22);
  --primary: #19C8FF;
  --accent: #B7FF2A;
  --secondary: #516B82;
  --text-1: #E8F3FF;
  --text-2: #9DB4C8;
  --danger: #FF5D6C;
  --radius-lg: 18px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow: 0 10px 30px rgba(2,6,12,.35);
  --shadow-hover: 0 18px 40px rgba(8,20,35,.5), 0 0 0 1px rgba(25,200,255,.15);
  --font-cn: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-en: "Rajdhani", "Orbitron", sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg-body);
  color: var(--text-1);
  font-family: var(--font-cn);
  font-size: 1rem;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: color .2s ease; }
a:hover, a:focus { color: var(--primary); outline: none; }
img { max-width: 100%; height: auto; display: block; }
button, input { font-family: inherit; }

.container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }
.section { padding: 96px 0; position: relative; }
.section-head { margin-bottom: 44px; }
.section-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: var(--radius-xs);
  font-size: .8rem; letter-spacing: .06em;
  background: rgba(25,200,255,.1);
  border: 1px solid rgba(25,200,255,.25);
  color: var(--primary);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.7rem, 3vw, 2.1rem);
  font-weight: 700;
  letter-spacing: .02em;
  margin: 0;
  position: relative;
  padding-left: 18px;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 5px;
  background: var(--primary);
  border-radius: 3px;
  box-shadow: 0 0 12px rgba(25,200,255,.6);
}
.section-sub { color: var(--text-2); max-width: 640px; margin-top: 10px; font-size: .95rem; }

.btn {
  border-radius: var(--radius-sm);
  padding: 10px 22px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: all .25s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn-primary {
  background: var(--primary);
  color: #04121c;
  border-color: var(--primary);
}
.btn-primary:hover, .btn-primary:focus {
  background: #4cd6ff;
  color: #04121c;
  box-shadow: 0 0 20px rgba(25,200,255,.45);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--text-1);
  border-color: var(--glass-border);
}
.btn-outline:hover, .btn-outline:focus {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(25,200,255,.08);
}
.btn-ghost { background: transparent; color: var(--text-1); padding: 8px 0; }
.btn-ghost:hover { color: var(--primary); }
.btn-lg { padding: 14px 34px; font-size: 1.05rem; }

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-xs);
  font-size: .8rem;
  letter-spacing: .06em;
  background: rgba(25,200,255,.1);
  border: 1px solid rgba(25,200,255,.25);
  color: var(--primary);
}
.badge-accent {
  background: rgba(183,255,42,.12);
  border-color: rgba(183,255,42,.3);
  color: var(--accent);
}
.badge-vip {
  position: absolute;
  top: 14px; left: 14px;
  z-index: 2;
  background: rgba(183,255,42,.15);
  border: 1px solid rgba(183,255,42,.35);
  color: var(--accent);
  padding: 4px 12px;
  border-radius: var(--radius-xs);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .05em;
}

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1050;
  height: 72px;
  background: rgba(5,11,20,.2);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(92,132,168,.15);
  transition: all .3s ease;
}
.site-header.scrolled {
  background: rgba(5,11,20,.92);
  box-shadow: 0 8px 30px rgba(0,0,0,.5);
  height: 56px;
  border-bottom-color: rgba(92,132,168,.2);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand-logo { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.logo-emblem {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, rgba(25,200,255,.2), rgba(25,200,255,.05));
  border: 1px solid rgba(25,200,255,.35);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  font-size: 16px;
  box-shadow: 0 0 16px rgba(25,200,255,.2);
}
.logo-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: .02em;
  background: linear-gradient(90deg, #E8F3FF, #19C8FF);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a {
  position: relative;
  color: var(--text-2);
  font-size: .95rem;
  font-weight: 500;
  padding: 6px 0;
  white-space: nowrap;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  height: 2px; width: 100%;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}
.main-nav a:hover { color: var(--text-1); }
.main-nav a:hover::after { transform: scaleX(1); }
.main-nav a.active { color: var(--text-1); font-weight: 600; }
.main-nav a.active::after { transform: scaleX(1); }
.nav-actions { display: flex; align-items: center; gap: 14px; }
.nav-search-wrap { position: relative; }
.nav-search-btn {
  width: 40px; height: 40px;
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  color: var(--text-1);
  transition: all .25s ease;
}
.nav-search-btn:hover { border-color: var(--primary); color: var(--primary); }
.nav-search-box {
  position: absolute;
  right: 0; top: calc(100% + 12px);
  width: 260px;
  background: rgba(8,17,32,.96);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 10px;
  opacity: 0; visibility: hidden;
  transform: translateY(-8px);
  transition: all .25s ease;
  box-shadow: 0 20px 40px rgba(0,0,0,.5);
}
.nav-search-box.open { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-search-box input {
  width: 100%; padding: 8px 12px;
  background: rgba(5,11,20,.8);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-1);
  font-size: .9rem;
}
.nav-search-box input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(25,200,255,.15); }
.search-hint { display: block; margin-top: 6px; font-size: .75rem; color: var(--text-2); padding-left: 4px; }
.nav-toggle { display: none; background: none; border: 1px solid var(--glass-border); border-radius: 10px; width: 44px; height: 44px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.nav-toggle span { width: 18px; height: 2px; background: var(--text-1); border-radius: 2px; transition: all .25s ease; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.category-hero {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  padding: 160px 0 72px;
  background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  overflow: hidden;
}
.category-hero::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(5,11,20,.94) 0%, rgba(5,11,20,.7) 55%, rgba(5,11,20,.35) 100%);
}
.category-hero::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(5,11,20,.3) 0%, transparent 45%, var(--bg-body) 100%);
}
.category-hero > .container { position: relative; z-index: 2; }
.hero-breadcrumb { color: var(--text-2); font-size: .85rem; margin-bottom: 12px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.hero-breadcrumb a:hover { color: var(--primary); }
.hero-breadcrumb i { font-size: .65rem; color: var(--secondary); }
.hero-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: .02em;
  margin: 0 0 14px;
  line-height: 1.2;
}
.hero-title span { color: var(--primary); }
.hero-desc {
  color: var(--text-2);
  font-size: 1.05rem;
  max-width: 540px;
  margin: 0;
}
.hero-meta-row { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 30px; }
.hero-meta-item { display: flex; align-items: center; gap: 8px; color: var(--text-1); font-size: .9rem; }
.hero-meta-item i { color: var(--accent); }
.hero-meta-item .num { font-family: var(--font-en); font-weight: 700; font-size: 1.1rem; letter-spacing: .04em; }

.swap-section { padding: 96px 0; }
.swap-item {
  display: flex;
  align-items: center;
  gap: 48px;
  margin-bottom: 64px;
}
.swap-item:last-child { margin-bottom: 0; }
.swap-item.reverse .swap-media { order: 2; }
.swap-media {
  flex: 0 0 48%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow);
}
.swap-media img { width: 100%; height: 340px; object-fit: cover; transition: transform .5s ease; }
.swap-item:hover .swap-media img { transform: scale(1.05); }
.swap-media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(5,11,20,.35));
  pointer-events: none;
}
.swap-content { flex: 1; }
.swap-content h3 { font-size: 1.55rem; font-weight: 700; margin: 0 0 12px; }
.swap-content p { color: var(--text-2); margin: 0 0 18px; font-size: 1rem; line-height: 1.8; }
.swap-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(92,132,168,.15);
  padding-top: 14px;
  font-size: .85rem;
  color: var(--text-2);
}
.swap-meta span { display: inline-flex; align-items: center; gap: 6px; }
.swap-meta i { color: var(--primary); }

.grid-section {
  padding: 96px 0;
  background: linear-gradient(180deg, rgba(5,11,20,.35) 0%, rgba(8,17,32,.7) 100%);
  border-top: 1px solid rgba(92,132,168,.1);
  border-bottom: 1px solid rgba(92,132,168,.1);
}
.data-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 100%;
  transition: all .25s ease;
}
.data-card:hover {
  transform: translateY(-4px);
  border-color: rgba(25,200,255,.35);
  box-shadow: var(--shadow-hover);
}
.data-card .card-media { position: relative; height: 200px; overflow: hidden; }
.data-card .card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.data-card:hover .card-media img { transform: scale(1.06); }
.data-card .card-body { padding: 20px; }
.data-card .card-title { font-size: 1.15rem; font-weight: 700; margin: 8px 0 8px; }
.data-card .card-text { color: var(--text-2); font-size: .9rem; margin: 0 0 14px; }
.data-card .card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .82rem;
  color: var(--text-2);
  border-top: 1px solid rgba(92,132,168,.12);
  padding-top: 12px;
}
.card-link { color: var(--primary); font-weight: 600; font-size: .88rem; }
.card-link i { margin-left: 4px; transition: margin .2s ease; }
.card-link:hover i { margin-left: 8px; }

.timeline-section { padding: 96px 0; }
.timeline-wrap { max-width: 780px; margin: 0 auto; position: relative; padding-left: 30px; }
.timeline-wrap::before {
  content: "";
  position: absolute; left: 8px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), rgba(25,200,255,.08));
}
.timeline-item { position: relative; padding: 0 0 40px 24px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -28px; top: 4px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--bg-body);
  border: 2px solid var(--primary);
  box-shadow: 0 0 12px rgba(25,200,255,.4);
}
.timeline-item.accent::before { border-color: var(--accent); box-shadow: 0 0 12px rgba(183,255,42,.4); }
.timeline-item h3 { font-size: 1.2rem; font-weight: 700; margin: 0 0 6px; }
.timeline-item p { color: var(--text-2); margin: 0; font-size: .95rem; }
.timeline-item .timeline-meta {
  font-size: .82rem;
  color: var(--text-2);
  margin-top: 8px;
  font-family: var(--font-en);
  letter-spacing: .04em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.timeline-item .timeline-meta i { color: var(--accent); font-size: .7rem; }

.faq-section {
  padding: 96px 0;
  background: rgba(5,11,20,.35);
  border-top: 1px solid rgba(92,132,168,.1);
}
.accordion {
  --bs-accordion-border-color: transparent;
  --bs-accordion-bg: transparent;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.accordion-item {
  background: var(--glass);
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-md) !important;
  overflow: hidden;
}
.accordion-button {
  background: transparent;
  color: var(--text-1);
  font-size: 1.05rem;
  font-weight: 600;
  padding: 18px 22px;
  box-shadow: none;
  position: relative;
}
.accordion-button::after {
  background: none;
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  content: "\f067";
  color: var(--primary);
  transition: transform .3s ease;
}
.accordion-button:not(.collapsed)::after {
  content: "\f068";
  transform: rotate(180deg);
}
.accordion-button:not(.collapsed) {
  color: var(--primary);
  background: rgba(25,200,255,.06);
  box-shadow: none;
}
.accordion-button:focus { box-shadow: 0 0 0 3px rgba(25,200,255,.15); }
.accordion-body { color: var(--text-2); padding: 0 22px 20px; font-size: .95rem; line-height: 1.85; }

.cta-bar {
  padding: 76px 0;
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(5,11,20,.94), rgba(8,17,32,.82)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  text-align: center;
}
.cta-bar::before {
  content: "";
  position: absolute;
  right: -120px; bottom: -120px;
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(183,255,42,.16), transparent 65%);
  pointer-events: none;
}
.cta-bar > .container { position: relative; z-index: 2; }
.cta-bar h2 {
  font-family: var(--font-en);
  font-size: clamp(1.9rem, 3.4vw, 2.7rem);
  font-weight: 800;
  letter-spacing: .02em;
  margin-bottom: 12px;
}
.cta-bar p { color: var(--text-2); max-width: 560px; margin: 0 auto; font-size: 1rem; }
.btn-pulse { animation: pulse 2.4s infinite; }
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(25,200,255,.5); }
  50% { box-shadow: 0 0 20px 6px rgba(25,200,255,.25); }
}

.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(92,132,168,.18);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .brand-logo { margin-bottom: 14px; }
.footer-brand p { color: var(--text-2); font-size: .9rem; margin-top: 16px; max-width: 320px; }
.footer-col h4 { font-size: 1rem; font-weight: 700; margin-bottom: 18px; color: var(--text-1); }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--text-2); font-size: .9rem; display: inline-flex; align-items: center; gap: 8px; transition: all .2s ease; }
.footer-col a:hover { color: var(--primary); }
.footer-col a i { font-size: .7rem; color: var(--primary); }
.footer-contact li { color: var(--text-2); font-size: .9rem; display: flex; gap: 10px; align-items: flex-start; margin-bottom: 12px; }
.footer-contact i { color: var(--primary); margin-top: 5px; }
.footer-bottom { border-top: 1px solid rgba(92,132,168,.15); padding: 20px 0; text-align: center; }
.footer-bottom p { color: var(--text-2); font-size: .85rem; margin: 0; }
.domain-text { color: var(--secondary); }

@media (max-width: 991px) {
  .section,
  .swap-section,
  .grid-section,
  .timeline-section,
  .faq-section { padding: 60px 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .swap-item, .swap-item.reverse { flex-direction: column; gap: 28px; }
  .swap-media { flex: none; width: 100%; }
  .swap-content { width: 100%; }
  .main-nav {
    position: fixed;
    inset: 0;
    background: rgba(5,11,20,.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 24px;
    opacity: 0; visibility: hidden;
    transform: translateY(-16px);
    transition: all .3s ease;
    z-index: 1040;
  }
  .main-nav.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .main-nav a { font-size: 1.2rem; color: var(--text-1); }
  .nav-toggle { display: inline-flex; }
  .nav-search-box {
    position: fixed;
    left: 20px; right: 20px; top: 76px;
    width: auto;
  }
  .hero-meta-row { gap: 14px; }
  .category-hero { min-height: 300px; padding: 140px 0 56px; }
}

@media (max-width: 767px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .swap-media img { height: 240px; }
  .section-title { font-size: 1.6rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-title { font-size: 1.9rem; }
  .hero-desc { font-size: .95rem; }
  .data-card .card-media { height: 176px; }
  .timeline-wrap { padding-left: 20px; }
  .timeline-item { padding-left: 18px; }
  .timeline-item::before { left: -25px; width: 14px; height: 14px; }
  .cta-bar { padding: 56px 0; }
}

@media (max-width: 575px) {
  .header-inner { padding: 0 16px; }
  .nav-actions > .btn-primary { display: none; }
  .nav-search-btn { width: 38px; height: 38px; }
  .swap-item { margin-bottom: 48px; }
  .section-head { margin-bottom: 30px; }
  .hero-meta-row { flex-direction: column; gap: 10px; }
  .footer-bottom p { font-size: .78rem; }
}

/* roulang page: category4 */
:root {
        --bg-deep: #050B14;
        --bg-body: #081120;
        --glass: rgba(10, 18, 28, .55);
        --glass-border: rgba(92, 132, 168, .22);
        --primary: #19C8FF;
        --accent: #B7FF2A;
        --secondary: #516B82;
        --text-1: #E8F3FF;
        --text-2: #9DB4C8;
        --danger: #FF5D6C;
        --radius-lg: 18px;
        --radius-md: 16px;
        --radius-sm: 10px;
        --radius-xs: 6px;
        --gap: 1.5rem;
        --shadow: 0 10px 30px rgba(2, 6, 12, .35);
        --shadow-hover: 0 18px 40px rgba(8, 20, 35, .5), 0 0 0 1px rgba(25, 200, 255, .15);
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        background-color: var(--bg-body);
        background-image: radial-gradient(ellipse at 70% 20%, rgba(25, 200, 255, .08), transparent 50%), radial-gradient(ellipse at 10% 80%, rgba(25, 200, 255, .04), transparent 40%);
        color: var(--text-1);
        line-height: 1.8;
        font-size: 1rem;
        overflow-x: hidden;
    }

    a {
        color: var(--primary);
        text-decoration: none;
        transition: color .25s ease, border-color .25s ease, background-color .25s ease;
    }

    a:hover {
        color: #37d1ff;
    }

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

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

    .container {
        width: 100%;
        max-width: 1200px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }

    .section {
        padding: 96px 0;
        position: relative;
    }

    .section-head {
        margin-bottom: 48px;
    }

    .section-head .section-tag {
        display: inline-flex;
        align-items: center;
        background: rgba(25, 200, 255, .08);
        border: 1px solid rgba(25, 200, 255, .2);
        color: var(--primary);
        font-size: .85rem;
        font-weight: 600;
        padding: 4px 14px;
        border-radius: var(--radius-xs);
        letter-spacing: .08em;
        margin-bottom: 14px;
        text-transform: uppercase;
    }

    .section-head h2 {
        font-size: clamp(1.75rem, 2.4vw, 2.25rem);
        font-weight: 700;
        letter-spacing: .02em;
        color: var(--text-1);
        margin: 0 0 12px 0;
        position: relative;
        padding-left: 18px;
    }

    .section-head h2::before {
        content: "";
        position: absolute;
        left: 0;
        top: 8px;
        bottom: 8px;
        width: 4px;
        background: var(--primary);
        border-radius: 4px;
        box-shadow: 0 0 8px rgba(25, 200, 255, .6);
    }

    .section-head p {
        color: var(--text-2);
        max-width: 640px;
        margin-bottom: 0;
    }

    /* Header */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        height: 72px;
        background: transparent;
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid rgba(92, 132, 168, .22);
        transition: all .35s ease;
    }

    .site-header.scrolled {
        background: rgba(5, 11, 20, .92);
        height: 56px;
        box-shadow: 0 8px 30px rgba(2, 6, 12, .45);
        border-bottom-color: rgba(92, 132, 168, .35);
    }

    .header-inner {
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 2rem;
        max-width: 1280px;
        margin: 0 auto;
        gap: 1.5rem;
    }

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

    .logo-emblem {
        width: 40px;
        height: 40px;
        border-radius: 12px;
        background: linear-gradient(135deg, rgba(25, 200, 255, .2), rgba(25, 200, 255, .05));
        border: 1px solid rgba(25, 200, 255, .35);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--primary);
        font-size: 1rem;
        box-shadow: 0 0 16px rgba(25, 200, 255, .2);
    }

    .logo-name {
        font-family: "Rajdhani", "Orbitron", sans-serif;
        font-size: 1.45rem;
        font-weight: 700;
        letter-spacing: .04em;
        color: var(--text-1);
        line-height: 1;
        white-space: nowrap;
    }

    .main-nav {
        display: flex;
        align-items: center;
        gap: .35rem;
    }

    .main-nav a {
        position: relative;
        color: var(--text-2);
        font-weight: 500;
        font-size: .98rem;
        padding: 10px 14px;
        border-radius: 8px;
        transition: color .3s ease;
    }

    .main-nav a::after {
        content: "";
        position: absolute;
        left: 14px;
        right: 14px;
        bottom: 4px;
        height: 2px;
        background: var(--accent);
        border-radius: 2px;
        transform: scaleX(0);
        transform-origin: left;
        transition: transform .3s ease;
    }

    .main-nav a:hover,
    .main-nav a.active {
        color: var(--text-1);
    }

    .main-nav a:hover::after,
    .main-nav a.active::after {
        transform: scaleX(1);
    }

    .main-nav a.active {
        color: var(--primary);
    }

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

    .nav-search-wrap {
        position: relative;
    }

    .nav-search-btn {
        width: 40px;
        height: 40px;
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-2);
        border: 1px solid transparent;
        transition: all .3s ease;
        font-size: 1rem;
    }

    .nav-search-btn:hover {
        color: var(--primary);
        border-color: rgba(25, 200, 255, .35);
        background: rgba(25, 200, 255, .06);
    }

    .nav-search-box {
        position: absolute;
        right: 0;
        top: calc(100% + 12px);
        width: 320px;
        background: rgba(8, 17, 32, .9);
        backdrop-filter: blur(16px);
        border: 1px solid var(--glass-border);
        border-radius: var(--radius-md);
        padding: 10px 14px;
        display: flex;
        align-items: center;
        gap: 10px;
        box-shadow: var(--shadow);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: all .3s ease;
    }

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

    .nav-search-box input {
        flex: 1;
        background: transparent;
        border: none;
        outline: none;
        color: var(--text-1);
        font-size: .92rem;
    }

    .nav-search-box input::placeholder {
        color: var(--secondary);
    }

    .search-hint {
        font-size: .75rem;
        color: var(--secondary);
        white-space: nowrap;
    }

    .nav-toggle {
        display: none;
        width: 42px;
        height: 42px;
        border-radius: 10px;
        border: 1px solid var(--glass-border);
        background: var(--glass);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        cursor: pointer;
    }

    .nav-toggle span {
        width: 20px;
        height: 2px;
        background: var(--text-1);
        border-radius: 2px;
        transition: all .3s ease;
    }

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

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

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

    /* Buttons */
    .btn {
        font-weight: 600;
        border-radius: var(--radius-sm);
        padding: 10px 22px;
        transition: all .3s ease;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: .95rem;
        letter-spacing: .02em;
    }

    .btn-primary {
        --bs-btn-bg: var(--primary);
        --bs-btn-border-color: var(--primary);
        --bs-btn-color: #081120;
        --bs-btn-hover-bg: #37d1ff;
        --bs-btn-hover-border-color: #37d1ff;
        --bs-btn-hover-color: #081120;
        --bs-btn-active-bg: #0eaee6;
        --bs-btn-active-border-color: #0eaee6;
        --bs-btn-active-color: #081120;
        box-shadow: 0 4px 20px rgba(25, 200, 255, .25);
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 0 24px rgba(25, 200, 255, .45);
    }

    .btn-outline-light {
        --bs-btn-color: var(--text-1);
        --bs-btn-border-color: var(--glass-border);
        --bs-btn-bg: transparent;
        --bs-btn-hover-bg: rgba(25, 200, 255, .08);
        --bs-btn-hover-border-color: var(--primary);
        --bs-btn-hover-color: var(--text-1);
        --bs-btn-active-bg: rgba(25, 200, 255, .15);
        --bs-btn-active-border-color: var(--primary);
        --bs-btn-active-color: var(--text-1);
        border-width: 1px;
    }

    .btn-outline-light:hover {
        border-color: var(--primary);
        box-shadow: 0 0 16px rgba(25, 200, 255, .2);
    }

    /* Hero Band */
    .cat-hero {
        position: relative;
        padding: 130px 0 64px;
        min-height: 300px;
        display: flex;
        align-items: center;
        background-image: linear-gradient(120deg, rgba(5, 11, 20, .88) 40%, rgba(8, 17, 32, .65)), url('/assets/images/backpic/back-1.webp');
        background-size: cover;
        background-position: center;
        border-bottom: 1px solid var(--glass-border);
    }

    .cat-hero::after {
        content: "";
        position: absolute;
        right: -80px;
        bottom: -80px;
        width: 260px;
        height: 260px;
        background: radial-gradient(circle, rgba(25, 200, 255, .18), transparent 70%);
        border-radius: 50%;
        pointer-events: none;
    }

    .cat-hero .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(183, 255, 42, .1);
        border: 1px solid rgba(183, 255, 42, .3);
        color: var(--accent);
        font-size: .82rem;
        font-weight: 600;
        letter-spacing: .08em;
        padding: 5px 14px;
        border-radius: var(--radius-xs);
        margin-bottom: 18px;
        text-transform: uppercase;
    }

    .cat-hero h1 {
        font-size: clamp(2.4rem, 4.5vw, 3.6rem);
        font-weight: 800;
        letter-spacing: .02em;
        line-height: 1.18;
        margin-bottom: 16px;
        color: var(--text-1);
    }

    .cat-hero h1 .grad {
        background: linear-gradient(90deg, var(--primary), var(--accent));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    .cat-hero .hero-sub {
        max-width: 560px;
        color: var(--text-2);
        font-size: 1.02rem;
        line-height: 1.75;
        margin-bottom: 0;
    }

    /* Module C: compact list */
    .compact-section {
        background: linear-gradient(180deg, rgba(5, 11, 20, .3), transparent);
    }

    .compact-list {
        list-style: none;
        margin: 0;
        padding: 0;
        position: relative;
    }

    .compact-list::before {
        content: "";
        position: absolute;
        left: 22px;
        top: 20px;
        bottom: 20px;
        width: 1px;
        background: linear-gradient(180deg, rgba(25, 200, 255, .5), rgba(25, 200, 255, .08));
    }

    .compact-list li {
        position: relative;
        display: flex;
        align-items: flex-start;
        gap: 24px;
        padding: 18px 0 18px 72px;
        border-bottom: 1px solid rgba(92, 132, 168, .12);
        transition: background .3s ease;
        border-radius: 12px;
    }

    .compact-list li:last-child {
        border-bottom: none;
    }

    .compact-list li:hover {
        background: rgba(25, 200, 255, .03);
    }

    .list-index {
        position: absolute;
        left: 0;
        top: 22px;
        width: 44px;
        height: 44px;
        border-radius: 50%;
        background: var(--glass);
        border: 1px solid rgba(25, 200, 255, .3);
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: "Rajdhani", "Orbitron", sans-serif;
        font-weight: 700;
        font-size: 1.05rem;
        color: var(--primary);
        box-shadow: 0 0 12px rgba(25, 200, 255, .15);
        z-index: 2;
    }

    .list-body h3 {
        font-size: 1.15rem;
        font-weight: 600;
        margin-bottom: 4px;
        color: var(--text-1);
    }

    .list-body p {
        color: var(--text-2);
        font-size: .95rem;
        margin-bottom: 0;
        line-height: 1.7;
        max-width: 620px;
    }

    /* Module A: cards grid */
    .cards-section {
        background: transparent;
    }

    .service-grid .card {
        background: var(--glass);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--glass-border);
        border-radius: var(--radius-md);
        overflow: hidden;
        box-shadow: var(--shadow);
        transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
        height: 100%;
    }

    .service-grid .card:hover {
        transform: translateY(-4px);
        border-color: rgba(25, 200, 255, .35);
        box-shadow: var(--shadow-hover);
    }

    .service-grid .card-img-wrap {
        position: relative;
        aspect-ratio: 16 / 10;
        overflow: hidden;
    }

    .service-grid .card-img-wrap img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .5s ease;
    }

    .service-grid .card:hover .card-img-wrap img {
        transform: scale(1.04);
    }

    .service-grid .card-img-wrap::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, transparent 40%, rgba(5, 11, 20, .55));
    }

    .service-grid .card-body {
        padding: 24px;
        position: relative;
    }

    .service-grid .card-body h3 {
        font-size: 1.18rem;
        font-weight: 600;
        margin-bottom: 8px;
        color: var(--text-1);
    }

    .service-grid .card-body p {
        color: var(--text-2);
        font-size: .92rem;
        line-height: 1.7;
        margin-bottom: 16px;
    }

    .card-link {
        font-size: .92rem;
        font-weight: 600;
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--primary);
    }

    .card-link i {
        transition: transform .25s ease;
        font-size: .8rem;
    }

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

    /* Module B: horizontal items */
    .horiz-section {
        background: linear-gradient(180deg, rgba(5, 11, 20, .35), transparent);
    }

    .horiz-item {
        display: flex;
        align-items: center;
        gap: 48px;
        margin-bottom: 56px;
        background: var(--glass);
        backdrop-filter: blur(12px);
        border: 1px solid var(--glass-border);
        border-radius: var(--radius-lg);
        padding: 24px;
        box-shadow: var(--shadow);
        transition: border-color .3s ease, box-shadow .3s ease;
    }

    .horiz-item:last-child {
        margin-bottom: 0;
    }

    .horiz-item:hover {
        border-color: rgba(25, 200, 255, .3);
        box-shadow: var(--shadow-hover);
    }

    .horiz-item .horiz-media {
        flex: 1 1 46%;
        border-radius: var(--radius-md);
        overflow: hidden;
        position: relative;
        min-height: 260px;
    }

    .horiz-item .horiz-media img {
        width: 100%;
        height: 100%;
        min-height: 260px;
        object-fit: cover;
    }

    .horiz-item .horiz-tag {
        position: absolute;
        top: 18px;
        left: 18px;
        background: rgba(5, 11, 20, .8);
        backdrop-filter: blur(8px);
        border: 1px solid var(--accent);
        color: var(--accent);
        font-size: .8rem;
        font-weight: 600;
        padding: 4px 12px;
        border-radius: var(--radius-xs);
        z-index: 3;
    }

    .horiz-item .horiz-body {
        flex: 1 1 54%;
        padding: 16px 12px;
    }

    .horiz-body .h-label {
        font-family: "Rajdhani", sans-serif;
        font-size: .85rem;
        font-weight: 600;
        color: var(--primary);
        letter-spacing: .1em;
        text-transform: uppercase;
        margin-bottom: 10px;
        display: block;
    }

    .horiz-body h3 {
        font-size: 1.55rem;
        font-weight: 700;
        margin-bottom: 12px;
        color: var(--text-1);
    }

    .horiz-body p {
        color: var(--text-2);
        font-size: .98rem;
        line-height: 1.8;
        margin-bottom: 18px;
    }

    .horiz-stat {
        display: flex;
        gap: 32px;
        margin-top: 8px;
    }

    .horiz-stat .stat-num {
        font-family: "Rajdhani", "Orbitron", sans-serif;
        font-size: 1.6rem;
        font-weight: 700;
        color: var(--accent);
        line-height: 1;
    }

    .horiz-stat .stat-label {
        font-size: .85rem;
        color: var(--text-2);
        margin-top: 4px;
    }

    /* FAQ */
    .faq-section .accordion {
        --bs-accordion-bg: transparent;
        --bs-accordion-border-width: 0;
    }

    .accordion-item {
        background: var(--glass);
        backdrop-filter: blur(12px);
        border: 1px solid var(--glass-border) !important;
        border-radius: var(--radius-md) !important;
        margin-bottom: 16px;
        overflow: hidden;
        transition: border-color .3s ease;
    }

    .accordion-item:focus-within,
    .accordion-item:hover {
        border-color: rgba(25, 200, 255, .35) !important;
    }

    .accordion-button {
        background: transparent !important;
        color: var(--text-1) !important;
        font-weight: 600;
        font-size: 1.05rem;
        padding: 20px 24px;
        box-shadow: none !important;
    }

    .accordion-button::after {
        background-image: none;
        content: "\2b";
        font-family: "Font Awesome 6 Free";
        font-weight: 900;
        font-size: 1rem;
        color: var(--primary);
        width: auto;
        height: auto;
        margin-left: auto;
        transition: transform .3s ease;
    }

    .accordion-button:not(.collapsed)::after {
        content: "\f068";
        transform: rotate(0deg);
        color: var(--accent);
    }

    .accordion-body {
        color: var(--text-2);
        line-height: 1.8;
        padding: 0 24px 20px;
        font-size: .95rem;
    }

    /* CTA */
    .cta-section {
        position: relative;
        padding: 84px 0;
        background-image: radial-gradient(circle at 80% 100%, rgba(183, 255, 42, .12), transparent 50%), radial-gradient(circle at 20% 0%, rgba(25, 200, 255, .1), transparent 40%), linear-gradient(135deg, rgba(5, 11, 20, .9), rgba(8, 17, 32, .95));
        border-top: 1px solid var(--glass-border);
        border-bottom: 1px solid var(--glass-border);
    }

    .cta-section .cta-inner {
        text-align: center;
        max-width: 720px;
        margin: 0 auto;
    }

    .cta-section h2 {
        font-size: clamp(2rem, 3.6vw, 2.8rem);
        font-weight: 800;
        letter-spacing: .02em;
        margin-bottom: 16px;
        color: var(--text-1);
    }

    .cta-section h2 .accent-text {
        color: var(--accent);
        font-family: "Rajdhani", sans-serif;
    }

    .cta-section p {
        color: var(--text-2);
        font-size: 1.05rem;
        margin-bottom: 32px;
    }

    .cta-section .btn-lg {
        padding: 14px 38px;
        font-size: 1.05rem;
        border-radius: 12px;
        box-shadow: 0 0 24px rgba(25, 200, 255, .35);
        animation: pulseGlow 2.5s infinite;
    }

    @keyframes pulseGlow {
        0%, 100% { box-shadow: 0 0 20px rgba(25, 200, 255, .35), 0 0 40px rgba(25, 200, 255, .1); }
        50% { box-shadow: 0 0 32px rgba(25, 200, 255, .55), 0 0 60px rgba(183, 255, 42, .15); }
    }

    /* Footer */
    .site-footer {
        background: var(--bg-deep);
        border-top: 1px solid rgba(92, 132, 168, .15);
        padding: 72px 0 0;
        color: var(--text-2);
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1.2fr;
        gap: 48px;
        margin-bottom: 48px;
    }

    .footer-brand .brand-logo {
        margin-bottom: 16px;
    }

    .footer-brand p {
        color: var(--text-2);
        font-size: .92rem;
        line-height: 1.75;
        max-width: 320px;
        margin-bottom: 0;
    }

    .footer-col h4 {
        font-size: 1.05rem;
        font-weight: 600;
        color: var(--text-1);
        margin-bottom: 18px;
        position: relative;
        padding-bottom: 10px;
    }

    .footer-col h4::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: 0;
        width: 28px;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
    }

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

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

    .footer-col ul a {
        color: var(--text-2);
        font-size: .93rem;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        transition: color .25s ease, transform .25s ease;
    }

    .footer-col ul a i {
        font-size: .7rem;
        color: var(--secondary);
        transition: color .25s ease, transform .25s ease;
    }

    .footer-col ul a:hover {
        color: var(--primary);
    }

    .footer-col ul a:hover i {
        color: var(--primary);
        transform: translateX(4px);
    }

    .footer-contact li {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        font-size: .93rem;
        line-height: 1.6;
    }

    .footer-contact i {
        color: var(--primary);
        margin-top: 5px;
        font-size: .9rem;
        width: 18px;
        text-align: center;
    }

    .footer-bottom {
        border-top: 1px solid rgba(92, 132, 168, .12);
        padding: 20px 0;
        text-align: center;
        color: var(--secondary);
        font-size: .88rem;
    }

    .footer-bottom .domain-text {
        color: var(--text-2);
    }

    /* Responsive */
    @media (max-width: 991px) {
        .section {
            padding: 64px 0;
        }

        .main-nav {
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            width: min(340px, 86vw);
            background: rgba(5, 11, 20, .97);
            backdrop-filter: blur(20px);
            flex-direction: column;
            align-items: flex-start;
            padding: 100px 32px 40px;
            gap: 8px;
            transform: translateX(100%);
            transition: transform .4s cubic-bezier(.65, .05, .36, 1);
            box-shadow: -20px 0 60px rgba(0, 0, 0, .5);
            border-left: 1px solid rgba(92, 132, 168, .2);
            overflow-y: auto;
        }

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

        .main-nav a {
            font-size: 1.05rem;
            padding: 12px 0;
            width: 100%;
            border-bottom: 1px solid rgba(92, 132, 168, .1);
        }

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

        .nav-toggle {
            display: inline-flex;
        }

        .nav-search-box {
            width: 240px;
        }

        .horiz-item {
            flex-direction: column;
            gap: 24px;
            padding: 20px;
        }

        .horiz-item .horiz-media,
        .horiz-item .horiz-body {
            flex: none;
            width: 100%;
        }

        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 36px;
        }
    }

    @media (max-width: 767px) {
        .header-inner {
            padding: 0 1rem;
        }

        .logo-name {
            font-size: 1.2rem;
        }

        .logo-emblem {
            width: 36px;
            height: 36px;
            font-size: .9rem;
        }

        .btn-primary.nav-cta {
            display: none;
        }

        .cat-hero {
            padding: 110px 0 48px;
            min-height: 260px;
        }

        .cat-hero h1 {
            font-size: 2.2rem;
        }

        .compact-list li {
            padding-left: 60px;
            gap: 16px;
        }

        .list-index {
            width: 38px;
            height: 38px;
            font-size: .95rem;
        }

        .horiz-stat {
            gap: 20px;
            flex-wrap: wrap;
        }

        .cta-section {
            padding: 60px 0;
        }
    }

    @media (max-width: 575px) {
        .section {
            padding: 48px 0;
        }

        .section-head {
            margin-bottom: 32px;
        }

        .nav-search-box {
            position: fixed;
            top: 64px;
            left: 1rem;
            right: 1rem;
            width: auto;
        }

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

        .footer-brand p {
            max-width: none;
        }

        .horiz-item .horiz-media {
            min-height: 200px;
        }

        .horiz-item .horiz-media img {
            min-height: 200px;
        }

        .compact-list li {
            padding-left: 0;
            padding-top: 56px;
            flex-direction: column;
        }

        .compact-list::before {
            display: none;
        }

        .list-index {
            left: 0;
            top: 4px;
        }

        .cat-hero .hero-sub {
            font-size: .95rem;
        }

        .cta-section .btn-lg {
            width: 100%;
            justify-content: center;
        }
    }

    @media (max-width: 380px) {
        .nav-search-btn {
            display: none;
        }

        .btn-primary.nav-cta {
            display: none;
        }
    }