/* roulang page: index */
:root {
  --bg-primary: #0A1120;
  --bg-secondary: #0C1428;
  --bg-deep: #060B16;
  --bg-card: rgba(255,255,255,0.045);
  --bg-card-hover: rgba(255,255,255,0.07);
  --border-glass: rgba(255,255,255,0.12);
  --border-light: rgba(255,255,255,0.2);
  --blue: #3D8BFF;
  --blue-light: #5BA0FF;
  --blue-deep: #2563EB;
  --mint: #3FE0C5;
  --orange: #FF9A62;
  --text-main: #F0F5FF;
  --text-sub: rgba(255,255,255,0.68);
  --text-weak: rgba(255,255,255,0.38);
  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-blue: 0 0 20px rgba(61,139,255,0.35);
  --shadow-blue-lg: 0 8px 40px rgba(61,139,255,0.18);
  --shadow-orange: 0 0 24px rgba(255,154,98,0.22);
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --space-section: 110px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg-primary);
  color:var(--text-main);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:var(--transition)}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button,input,select,textarea{
  font-family:inherit;font-size:inherit;color:inherit;
  border:none;outline:none;background:transparent;
}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 28px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:var(--transition);white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--blue-light);outline-offset:3px}
.btn-primary{
  background:linear-gradient(135deg,var(--blue),var(--blue-deep));
  color:#fff;border:1px solid rgba(255,255,255,0.15);
  box-shadow:0 0 20px rgba(61,139,255,0.35);
}
.btn-primary:hover{box-shadow:0 0 32px rgba(61,139,255,0.55);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0) scale(0.98)}
.btn-outline{
  background:rgba(255,255,255,0.05);
  color:var(--text-main);
  border:1px solid var(--border-light);
  backdrop-filter:blur(8px);
}
.btn-outline:hover{border-color:var(--blue-light);background:rgba(61,139,255,0.12);box-shadow:0 0 16px rgba(61,139,255,0.2)}
.btn-outline:active{transform:scale(0.98)}
.btn-text{
  padding:12px 8px;color:var(--blue-light);font-weight:600;
}
.btn-text .arrow{transition:transform 0.3s;display:inline-block}
.btn-text:hover .arrow{transform:translateX(6px)}
.btn-text:active{transform:scale(0.97)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 14px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;letter-spacing:0.3px;
  background:rgba(255,255,255,0.06);
  border:1px solid var(--border-glass);
  color:var(--text-sub);
}
.badge::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--blue)}
.badge-blue{background:rgba(61,139,255,0.12);border-color:rgba(61,139,255,0.3);color:var(--blue-light)}
.badge-blue::before{background:var(--blue-light)}
.badge-mint{background:rgba(63,224,197,0.1);border-color:rgba(63,224,197,0.25);color:var(--mint)}
.badge-mint::before{background:var(--mint)}
.badge-orange{background:rgba(255,154,98,0.1);border-color:rgba(255,154,98,0.3);color:var(--orange)}
.badge-orange::before{background:var(--orange)}
.section{padding:var(--space-section) 0;position:relative}
.section-head{max-width:720px;margin-bottom:56px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-no{
  font-family:"Courier New",monospace;
  font-size:13px;font-weight:700;letter-spacing:3px;
  color:var(--blue);display:inline-flex;align-items:center;gap:10px;
  margin-bottom:12px;
}
.section-no::after{content:"";width:36px;height:1px;background:linear-gradient(90deg,var(--blue),transparent)}
.section-head.center .section-no::after{background:linear-gradient(90deg,transparent,var(--blue),transparent)}
.section-title{font-size:32px;font-weight:800;line-height:1.3;margin-bottom:14px;letter-spacing:1px}
.section-sub{font-size:16px;color:var(--text-sub);line-height:1.8}
.glass-card{
  background:var(--bg-card);
  border:1px solid var(--border-glass);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(12px);
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.glass-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.25),transparent);
}
.glass-card:hover{
  background:var(--bg-card-hover);
  border-color:rgba(255,255,255,0.22);
  box-shadow:0 8px 40px rgba(0,0,0,0.2),0 0 24px rgba(61,139,255,0.08);
  transform:translateY(-3px);
}
/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(10,17,32,0.82);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,0.06);
  transition:var(--transition);
}
.header-top{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 0 6px;
}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-icon{
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,var(--blue),var(--blue-deep));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:20px;
  box-shadow:0 4px 16px rgba(61,139,255,0.35);
  border:1px solid rgba(255,255,255,0.2);
}
.logo-name{font-size:20px;font-weight:800;line-height:1.2;letter-spacing:0.5px}
.logo-name span{color:var(--blue-light)}
.logo-sub{font-size:12px;color:var(--text-weak);margin-top:2px;letter-spacing:1px}
.header-cta{padding:10px 22px;font-size:14px}
.chip-nav{
  display:flex;gap:8px;padding:8px 0 12px;
  overflow-x:auto;scrollbar-width:none;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  padding:8px 22px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,0.14);
  background:rgba(255,255,255,0.04);
  font-size:14px;font-weight:500;white-space:nowrap;
  color:var(--text-sub);cursor:pointer;
  transition:var(--transition);
}
.chip:hover{color:var(--text-main);border-color:var(--blue);background:rgba(61,139,255,0.12)}
.chip.active{
  background:linear-gradient(135deg,var(--blue),var(--blue-deep));
  border-color:transparent;color:#fff;
  box-shadow:0 0 20px rgba(61,139,255,0.35);
}
.chip:focus-visible{outline:2px solid var(--blue-light);outline-offset:2px}
/* ============ Hero ============ */
.hero-section{
  padding:90px 0 70px;
  background:
    radial-gradient(ellipse at 20% 0%,rgba(61,139,255,0.12),transparent 55%),
    radial-gradient(ellipse at 80% 20%,rgba(63,224,197,0.05),transparent 50%),
    var(--bg-primary);
  position:relative;overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:1.05fr 0.95fr;gap:64px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(61,139,255,0.1);
  border:1px solid rgba(61,139,255,0.25);
  border-radius:var(--radius-pill);
  padding:6px 18px;font-size:13px;font-weight:600;
  color:var(--blue-light);margin-bottom:22px;
}
.hero-badge i{font-size:14px}
.hero-title{
  font-size:44px;font-weight:900;line-height:1.25;
  margin-bottom:20px;letter-spacing:0.5px;
}
.hero-title .hl{color:var(--blue-light)}
.hero-intro{
  font-size:17px;line-height:1.9;color:var(--text-sub);
  max-width:520px;margin-bottom:30px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.matrix-item{
  background:rgba(255,255,255,0.04);
  border:1px solid var(--border-glass);
  border-radius:var(--radius-md);
  padding:22px 14px;text-align:center;
  transition:var(--transition);cursor:default;
}
.matrix-item:hover{
  border-color:rgba(61,139,255,0.5);
  transform:translateY(-5px);
  box-shadow:0 10px 30px rgba(61,139,255,0.12);
  background:rgba(61,139,255,0.07);
}
.matrix-item i{font-size:26px;color:var(--blue-light);margin-bottom:10px;display:block}
.matrix-item span{font-size:14px;font-weight:600;letter-spacing:0.5px}
.hero-statusbar{
  margin-top:60px;max-width:820px;margin-left:auto;margin-right:auto;
  display:flex;justify-content:center;gap:40px;flex-wrap:wrap;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:var(--radius-pill);
  padding:14px 36px;
}
.status-item{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-sub)}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint);animation:pulse 2s infinite}
.status-item:nth-child(2) .status-dot{background:var(--blue-light);box-shadow:0 0 10px var(--blue-light)}
.status-item:nth-child(3) .status-dot{background:var(--orange);box-shadow:0 0 10px var(--orange)}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.5;transform:scale(0.8)}}
/* ============ Benefits ============ */
.benefits-section{background:var(--bg-secondary)}
.benefits-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.benefit-card{padding:32px 26px 28px}
.benefit-card .icon-wrap{
  width:50px;height:50px;border-radius:14px;
  background:rgba(61,139,255,0.12);
  border:1px solid rgba(61,139,255,0.25);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;color:var(--blue-light);
  margin-bottom:18px;transition:var(--transition);
}
.benefit-card:hover .icon-wrap{background:var(--blue);color:#fff;box-shadow:0 0 20px rgba(61,139,255,0.4)}
.benefit-card h3{font-size:19px;font-weight:700;margin-bottom:10px}
.benefit-card p{font-size:14px;line-height:1.8;color:var(--text-sub)}
.benefit-card:nth-child(2) .icon-wrap{background:rgba(63,224,197,0.1);border-color:rgba(63,224,197,0.25);color:var(--mint)}
.benefit-card:nth-child(2):hover .icon-wrap{background:var(--mint);color:#fff;box-shadow:0 0 20px rgba(63,224,197,0.4)}
.benefit-card:nth-child(3) .icon-wrap{background:rgba(255,154,98,0.1);border-color:rgba(255,154,98,0.25);color:var(--orange)}
.benefit-card:nth-child(3):hover .icon-wrap{background:var(--orange);color:#fff;box-shadow:0 0 20px rgba(255,154,98,0.4)}
/* ============ Qualification ============ */
.qualification-section{background:var(--bg-primary)}
.qualification-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.qualification-grid::before{
  content:"";position:absolute;top:40px;left:15%;right:15%;
  height:2px;background:linear-gradient(90deg,transparent,var(--blue),transparent);
  opacity:0.3;
}
.qual-step{padding:0 20px;position:relative}
.qual-step .step-num{
  width:80px;height:80px;border-radius:50%;
  background:rgba(61,139,255,0.1);
  border:1px solid rgba(61,139,255,0.3);
  display:flex;align-items:center;justify-content:center;
  font-size:24px;font-weight:800;color:var(--blue-light);
  margin:0 auto 20px;position:relative;z-index:1;
  transition:var(--transition);
  font-family:"Courier New",monospace;
}
.qual-step:hover .step-num{
  background:var(--blue);color:#fff;
  box-shadow:0 0 30px rgba(61,139,255,0.4);
  transform:scale(1.05);
}
.qual-step h3{font-size:19px;font-weight:700;text-align:center;margin-bottom:12px}
.qual-step p{font-size:14px;color:var(--text-sub);text-align:center;line-height:1.8}
/* ============ Stats ============ */
.stats-section{
  background:linear-gradient(180deg,var(--bg-primary),var(--bg-secondary));
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat-card{padding:36px 28px;text-align:center}
.stat-num{
  font-size:40px;font-weight:900;
  font-family:"Courier New","SF Mono",monospace;
  color:var(--blue-light);
  line-height:1.2;margin-bottom:8px;
}
.stat-num .unit{font-size:20px;font-weight:700;color:var(--text-sub)}
.stat-label{font-size:15px;font-weight:600;margin-bottom:6px}
.stat-trend{font-size:13px;color:var(--text-weak)}
.stat-trend i{color:var(--mint);margin-right:4px}
.stat-card::after{
  content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);
  width:40px;height:3px;border-radius:3px;
  background:linear-gradient(90deg,var(--blue),var(--mint));
  opacity:0;transition:var(--transition);
}
.stat-card:hover::after{opacity:1}
/* ============ News ============ */
.news-section{background:var(--bg-secondary)}
.news-layout{display:grid;grid-template-columns:1fr 340px;gap:40px}
.news-list{display:flex;flex-direction:column;gap:18px}
.news-item{
  display:flex;flex-direction:column;
  background:rgba(255,255,255,0.035);
  border:1px solid var(--border-glass);
  border-left:3px solid var(--blue);
  border-radius:var(--radius-md);
  padding:24px 28px;
  transition:var(--transition);
}
.news-item:hover{
  background:rgba(255,255,255,0.06);
  border-left-color:var(--mint);
  border-color:rgba(255,255,255,0.18);
  transform:translateX(4px);
}
.news-item-meta{display:flex;align-items:center;gap:14px;margin-bottom:8px}
.news-item-meta time{font-size:13px;color:var(--text-weak)}
.news-item-body h3{font-size:18px;font-weight:700;line-height:1.6;margin-bottom:8px}
.news-item-body h3 a{transition:var(--transition)}
.news-item-body h3 a:hover{color:var(--blue-light)}
.news-item-body p.news-excerpt{
  font-size:14px;color:var(--text-sub);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.empty-state{
  padding:60px 20px;text-align:center;
  color:var(--text-weak);font-size:16px;
  border:1px dashed rgba(255,255,255,0.15);
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,0.02);
}
.news-sidebar{display:flex;flex-direction:column;gap:24px}
.sidebar-card{padding:26px}
.sidebar-card h4{
  font-size:17px;font-weight:700;margin-bottom:16px;
  display:flex;align-items:center;gap:8px;
}
.sidebar-card h4::before{
  content:"";width:4px;height:18px;border-radius:2px;
  background:linear-gradient(180deg,var(--blue),var(--mint));
}
.tags-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-item{
  padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,0.04);
  border:1px solid var(--border-glass);
  font-size:13px;color:var(--text-sub);
  cursor:pointer;transition:var(--transition);
}
.tag-item:hover{
  border-color:var(--blue);color:var(--blue-light);
  background:rgba(61,139,255,0.08);
  transform:translateY(-2px);
}
.reco-item{display:flex;gap:14px;align-items:center;padding:10px 0;border-bottom:1px solid rgba(255,255,255,0.05)}
.reco-item:last-child{border-bottom:none}
.reco-thumb{
  width:72px;height:54px;border-radius:8px;object-fit:cover;
  border:1px solid var(--border-glass);flex-shrink:0;
}
.reco-item h5{font-size:14px;font-weight:600;line-height:1.5;margin-bottom:4px}
.reco-item h5 a:hover{color:var(--blue-light)}
.reco-item span{font-size:12px;color:var(--text-weak)}
/* ============ Services ============ */
.services-section{background:var(--bg-primary)}
.services-masonry{display:flex;flex-direction:column;gap:22px}
.service-row{display:grid;grid-template-columns:1.1fr 0.9fr;gap:22px}
.service-row-2{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.service-card{padding:30px;display:flex;flex-direction:column;position:relative}
.service-card .corner-no{
  position:absolute;top:18px;right:22px;
  font-family:"Courier New",monospace;font-size:13px;font-weight:700;
  color:var(--text-weak);letter-spacing:2px;
}
.service-card .corner-no::after{
  content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--mint);margin-left:6px;vertical-align:middle;
}
.service-card .service-icon{
  width:46px;height:46px;border-radius:12px;
  background:rgba(61,139,255,0.12);
  border:1px solid rgba(61,139,255,0.2);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;color:var(--blue-light);
  margin-bottom:16px;
}
.service-card h3{font-size:20px;font-weight:700;margin-bottom:10px}
.service-card p{font-size:14px;color:var(--text-sub);line-height:1.8;flex:1}
.service-card .card-link{
  margin-top:16px;color:var(--blue-light);font-size:14px;font-weight:600;
  display:inline-flex;align-items:center;gap:6px;
}
.service-card .card-link i{transition:transform 0.3s}
.service-card:hover .card-link i{transform:translateX(5px)}
.service-card.recommend{border-color:rgba(255,154,98,0.35)}
.service-card.recommend::after{
  content:"推荐";position:absolute;top:20px;right:20px;
  background:rgba(255,154,98,0.15);
  color:var(--orange);
  border:1px solid rgba(255,154,98,0.3);
  font-size:11px;font-weight:700;
  padding:3px 10px;border-radius:var(--radius-pill);
}
.service-card.recommend:hover{border-color:rgba(255,154,98,0.6);box-shadow:var(--shadow-orange)}
.service-card.recommend .service-icon{background:rgba(255,154,98,0.12);border-color:rgba(255,154,98,0.25);color:var(--orange)}
.service-card.large-card{
  border:none;padding:0;overflow:hidden;
}
.service-card.large-card:hover{transform:translateY(-4px)}
.large-card-img{width:100%;height:220px;object-fit:cover;border-radius:var(--radius-lg) var(--radius-lg) 0 0}
.large-card-body{padding:30px}
.service-card:hover .large-card-img{transform:scale(1.02)}
.service-card .large-card-img{transition:transform 0.5s ease}
/* ============ Compare ============ */
.compare-section{
  background:
    linear-gradient(rgba(10,17,32,0.92),rgba(6,11,22,0.96)),
    url('/assets/images/backpic/back-1.jpg') center/cover fixed;
}
.compare-panel{
  display:grid;grid-template-columns:1fr auto 1fr;gap:30px;align-items:stretch;
  background:rgba(255,255,255,0.03);
  border:1px solid var(--border-glass);
  border-radius:var(--radius-lg);
  padding:44px;
  backdrop-filter:blur(8px);
  position:relative;
}
.vs-badge{
  width:66px;height:66px;border-radius:50%;
  background:linear-gradient(135deg,var(--blue),var(--blue-deep));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:900;font-size:24px;
  border:3px solid rgba(255,255,255,0.2);
  box-shadow:0 0 30px rgba(61,139,255,0.4);
  position:relative;z-index:2;align-self:center;
}
.compare-col{padding:10px 20px}
.compare-col h3{font-size:22px;font-weight:800;margin-bottom:20px;text-align:center}
.compare-col.bad h3{color:var(--orange)}
.compare-col.good h3{color:var(--mint)}
.compare-list{display:flex;flex-direction:column;gap:14px}
.compare-item{
  display:flex;align-items:flex-start;gap:12px;
  padding:14px 16px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,0.03);
  border:1px solid rgba(255,255,255,0.06);
  font-size:14.5px;line-height:1.7;color:var(--text-sub);
}
.compare-item .mark{flex-shrink:0;width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800}
.compare-item.bad .mark{background:rgba(255,154,98,0.15);color:var(--orange);border:1px solid rgba(255,154,98,0.3)}
.compare-item.good .mark{background:rgba(63,224,197,0.12);color:var(--mint);border:1px solid rgba(63,224,197,0.3)}
.compare-col .btn{margin-top:22px;width:100%}
/* ============ FAQ ============ */
.faq-section{background:var(--bg-secondary)}
.faq-list{max-width:860px;margin:0 auto}
.faq-item{
  background:rgba(255,255,255,0.035);
  border:1px solid var(--border-glass);
  border-radius:var(--radius-md);
  margin-bottom:14px;
  overflow:hidden;
  transition:var(--transition);
}
.faq-item.open{border-color:rgba(63,224,197,0.4);background:rgba(63,224,197,0.04)}
.faq-q{
  padding:22px 26px;display:flex;align-items:center;gap:14px;
  cursor:pointer;user-select:none;
  font-size:16.5px;font-weight:600;
}
.faq-q .q-mark{
  width:30px;height:30px;border-radius:8px;flex-shrink:0;
  background:rgba(61,139,255,0.15);
  border:1px solid rgba(61,139,255,0.3);
  color:var(--blue-light);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;
}
.faq-q .faq-arrow{margin-left:auto;width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,0.05);display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--text-weak);transition:var(--transition);flex-shrink:0}
.faq-item.open .faq-q .faq-arrow{transform:rotate(180deg);color:var(--mint);background:rgba(63,224,197,0.1)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height 0.4s ease;
  padding:0 26px;
}
.faq-item.open .faq-a{max-height:500px;padding:0 26px 22px}
.faq-a-inner{display:flex;gap:14px;align-items:flex-start}
.faq-a .a-mark{
  width:30px;height:30px;border-radius:8px;flex-shrink:0;
  background:rgba(63,224,197,0.12);
  border:1px solid rgba(63,224,197,0.25);
  color:var(--mint);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;
}
.faq-a p{font-size:15px;line-height:1.9;color:var(--text-sub)}
/* ============ Apply Form ============ */
.apply-section{
  background:
    linear-gradient(rgba(6,11,22,0.94),rgba(10,17,32,0.97)),
    url('/assets/images/backpic/back-2.jpg') center/cover fixed;
  position:relative;
}
.apply-grid{display:grid;grid-template-columns:0.9fr 1.1fr;gap:48px;align-items:start}
.apply-info{padding-top:10px}
.apply-info h2{font-size:30px;font-weight:800;margin-bottom:16px;line-height:1.35}
.apply-info .lead{font-size:16px;color:var(--text-sub);line-height:1.9;margin-bottom:28px}
.contact-lines{display:flex;flex-direction:column;gap:14px;margin-bottom:28px}
.contact-line{display:flex;align-items:center;gap:14px;font-size:15px;color:var(--text-sub)}
.contact-line i{width:38px;height:38px;border-radius:10px;background:rgba(61,139,255,0.1);border:1px solid rgba(61,139,255,0.2);color:var(--blue-light);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}
.apply-note{
  background:rgba(255,255,255,0.03);
  border:1px solid rgba(255,255,255,0.07);
  border-radius:var(--radius-sm);
  padding:14px 18px;
  font-size:13px;color:var(--text-weak);line-height:1.7;
}
.form-panel{padding:36px}
.form-panel h3{font-size:22px;font-weight:700;margin-bottom:6px}
.form-panel .form-sub{font-size:14px;color:var(--text-weak);margin-bottom:28px}
.form-group{margin-bottom:20px}
.form-group label{
  display:block;font-size:13.5px;font-weight:600;
  color:var(--text-sub);margin-bottom:8px;letter-spacing:0.3px;
}
.form-group label .req{color:var(--orange);margin-left:2px}
.form-control{
  width:100%;padding:13px 18px;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.16);
  border-radius:var(--radius-md);
  color:var(--text-main);
  font-size:15px;
  transition:var(--transition);
}
.form-control::placeholder{color:rgba(255,255,255,0.3)}
.form-control:focus{border-color:var(--blue);box-shadow:0 0 16px rgba(61,139,255,0.2);background:rgba(255,255,255,0.06)}
select.form-control{
  appearance:none;
  -webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3e%3cpath fill='rgba(255,255,255,0.5)' d='M6 8L0 0h12z'/%3e%3c/svg%3e");
  background-repeat:no-repeat;
  background-position:right 18px center;
}
textarea.form-control{min-height:110px;resize:vertical}
.form-submit{margin-top:8px}
.form-footnote{
  font-size:12px;color:var(--text-weak);margin-top:14px;
  line-height:1.7;text-align:center;
}
/* ============ Footer ============ */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid rgba(255,255,255,0.06);
  padding:70px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.2fr 0.8fr 1fr 0.8fr;gap:40px;padding-bottom:50px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-sub);line-height:1.8}
.footer-col h4{
  font-size:16px;font-weight:700;margin-bottom:18px;
  position:relative;padding-bottom:10px;
}
.footer-col h4::after{
  content:"";position:absolute;bottom:0;left:0;
  width:28px;height:2px;border-radius:2px;
  background:var(--blue);
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul li{font-size:14px}
.footer-col ul li a{color:var(--text-sub);transition:var(--transition)}
.footer-col ul li a:hover{color:var(--blue-light);padding-left:4px}
.footer-copyright{
  border-top:1px solid rgba(255,255,255,0.05);
  padding:22px 0 26px;
  text-align:center;
  font-size:13px;color:var(--text-weak);
  line-height:1.8;
}
.footer-copyright .sep{margin:0 10px;opacity:0.4}
/* ============ Responsive ============ */
@media (max-width:1023px){
  :root{--space-section:80px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-title{font-size:36px}
  .benefits-grid{grid-template-columns:repeat(2,1fr)}
  .benefits-grid .benefit-card{
    background:rgba(255,255,255,0.04);
    border:1px solid var(--border-glass);
    border-radius:var(--radius-lg);
    padding:26px;
  }
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .news-layout{grid-template-columns:1fr}
  .news-sidebar{flex-direction:row;flex-wrap:wrap}
  .news-sidebar .sidebar-card{flex:1;min-width:260px}
  .service-row{grid-template-columns:1fr}
  .service-row-2{grid-template-columns:repeat(2,1fr)}
  .compare-panel{grid-template-columns:1fr;padding:30px}
  .vs-badge{width:50px;height:50px;font-size:18px;margin:0 auto;transform:rotate(90deg)}
  .compare-col{padding:10px 0}
  .apply-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  :root{--space-section:60px}
  .container{padding:0 18px}
  .hero-section{padding:60px 0 50px}
  .hero-title{font-size:30px}
  .hero-intro{font-size:15px}
  .hero-actions .btn{flex:1;justify-content:center}
  .matrix-grid{grid-template-columns:repeat(2,1fr)}
  .matrix-item{padding:16px 10px}
  .matrix-item i{font-size:22px}
  .hero-statusbar{flex-direction:column;gap:10px;border-radius:16px;padding:18px}
  .status-item{justify-content:center}
  .benefits-grid{grid-template-columns:1fr}
  .qualification-grid{grid-template-columns:1fr}
  .qualification-grid::before{display:none}
  .qual-step .step-num{width:60px;height:60px;font-size:18px}
  .stats-grid{grid-template-columns:1fr}
  .stat-card{padding:26px 20px}
  .stat-num{font-size:32px}
  .service-row-2{grid-template-columns:1fr}
  .section-title{font-size:26px}
  .chip-nav{padding-bottom:8px}
  .chip{padding:7px 16px;font-size:13px}
  .header-cta{display:none}
  .logo-name{font-size:17px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .form-panel{padding:26px}
  .faq-q{padding:18px 18px;font-size:15px}
  .faq-item.open .faq-a{padding:0 18px 18px}
  .compare-panel{padding:24px}
}

/* roulang page: article */
:root {
            --bg-deep: #0A1120;
            --bg-main: #0C1428;
            --bg-card: rgba(255, 255, 255, 0.045);
            --bg-card-hover: rgba(255, 255, 255, 0.08);
            --border-glass: rgba(255, 255, 255, 0.12);
            --border-hover: rgba(255, 255, 255, 0.24);
            --primary: #3D8BFF;
            --primary-light: #5BA0FF;
            --mint: #3FE0C5;
            --orange: #FF9A62;
            --text-main: #F0F5FF;
            --text-secondary: rgba(255, 255, 255, 0.68);
            --text-muted: rgba(255, 255, 255, 0.38);
            --radius-lg: 14px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-primary: 0 0 20px rgba(61, 139, 255, 0.35);
            --shadow-orange: 0 0 24px rgba(255, 154, 98, 0.22);
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        body::before {
            content: '';
            position: fixed;
            inset: 0;
            background: radial-gradient(ellipse at 50% 0%, rgba(61, 139, 255, 0.10) 0%, transparent 65%);
            pointer-events: none;
            z-index: 0;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }

        a:focus,
        button:focus,
        input:focus,
        select:focus,
        textarea:focus {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 30px;
            position: relative;
            z-index: 1;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all .3s ease;
            white-space: nowrap;
            min-height: 44px;
        }

        .btn i {
            font-size: 1.05em;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
            box-shadow: var(--shadow-primary);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #2d7df0 0%, #6badff 100%);
            box-shadow: 0 0 28px rgba(61, 139, 255, 0.5);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.98);
            box-shadow: 0 0 14px rgba(61, 139, 255, 0.3);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-glass);
            color: var(--text-main);
            backdrop-filter: blur(8px);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.32);
            box-shadow: 0 0 18px rgba(61, 139, 255, 0.2);
        }

        .btn-text {
            background: none;
            border: none;
            color: var(--primary-light);
            padding: 8px 0;
            font-weight: 500;
        }

        .btn-text i {
            transition: transform .3s ease;
        }

        .btn-text:hover i {
            transform: translateX(5px);
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 17, 32, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: box-shadow .3s ease, background .3s ease;
        }

        .site-header.scrolled {
            background: rgba(8, 13, 26, 0.92);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }

        .logo-icon {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary) 0%, var(--mint) 100%);
            border-radius: 12px;
            color: #fff;
            font-size: 20px;
            box-shadow: 0 0 16px rgba(61, 139, 255, 0.35);
            flex-shrink: 0;
        }

        .logo-name {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 1px;
            line-height: 1.2;
        }

        .logo-name span {
            color: var(--primary-light);
        }

        .logo-sub {
            display: block;
            font-size: 11px;
            color: var(--text-secondary);
            letter-spacing: 3px;
            font-weight: 400;
            margin-top: 2px;
        }

        .header-cta {
            padding: 10px 22px;
            font-size: 14px;
        }

        .chip-nav {
            display: flex;
            gap: 12px;
            padding-bottom: 14px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

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

        .chip {
            display: inline-flex;
            align-items: center;
            padding: 8px 22px;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-glass);
            font-size: 14px;
            color: var(--text-main);
            white-space: nowrap;
            transition: all .3s ease;
            cursor: pointer;
            min-height: 36px;
        }

        .chip:hover {
            background: rgba(255, 255, 255, 0.09);
            border-color: rgba(255, 255, 255, 0.28);
        }

        .chip.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-primary);
        }

        /* Article hero */
        .article-section {
            padding: 60px 0 40px;
            position: relative;
        }

        .article-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 500px;
            background: url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
            opacity: 0.5;
            mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent);
            -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent);
            z-index: 0;
            pointer-events: none;
        }

        .article-section::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 500px;
            background: linear-gradient(180deg, rgba(10, 17, 32, 0.6), transparent 70%);
            z-index: 0;
            pointer-events: none;
        }

        .article-hero-panel {
            background: linear-gradient(160deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 18px 48px rgba(0, 0, 0, 0.3);
            position: relative;
            overflow: hidden;
        }

        .article-hero-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(63, 224, 197, 0.45), transparent);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color .2s ease;
        }

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

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

        .breadcrumb .current {
            color: var(--text-main);
        }

        .article-badge-row {
            display: flex;
            gap: 10px;
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

        .badge-category {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: var(--radius-pill);
            background: rgba(61, 139, 255, 0.15);
            border: 1px solid rgba(61, 139, 255, 0.4);
            color: var(--primary-light);
            font-size: 13px;
            font-weight: 500;
        }

        .badge-category::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary-light);
            box-shadow: 0 0 8px var(--primary-light);
        }

        .badge-category.cat-mint {
            background: rgba(63, 224, 197, 0.12);
            border-color: rgba(63, 224, 197, 0.4);
            color: var(--mint);
        }

        .badge-category.cat-mint::before {
            background: var(--mint);
            box-shadow: 0 0 8px var(--mint);
        }

        .badge-category.cat-orange {
            background: rgba(255, 154, 98, 0.12);
            border-color: rgba(255, 154, 98, 0.4);
            color: var(--orange);
        }

        .badge-category.cat-orange::before {
            background: var(--orange);
            box-shadow: 0 0 8px var(--orange);
        }

        .article-h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
            color: var(--text-main);
        }

        .article-abstract {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 24px;
            max-width: 780px;
        }

        .article-meta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            font-size: 14px;
            color: var(--text-muted);
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .article-meta-row span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .article-meta-row i {
            color: var(--primary-light);
            font-size: 14px;
        }

        /* Article main content */
        .article-main {
            padding: 50px 0 80px;
            position: relative;
            z-index: 1;
        }

        .article-content {
            max-width: 860px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 44px 54px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            line-height: 2;
            font-size: 16.5px;
            color: rgba(255, 255, 255, 0.85);
            position: relative;
        }

        .article-content::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(61, 139, 255, 0.5), transparent);
        }

        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            margin-top: 36px;
            margin-bottom: 16px;
            color: var(--text-main);
            padding-left: 18px;
            border-left: 3px solid var(--primary);
            border-radius: 2px;
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 21px;
            font-weight: 600;
            margin-top: 28px;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .article-content p {
            margin-bottom: 20px;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 20px;
            padding-left: 24px;
        }

        .article-content ul li {
            list-style: disc;
            margin-bottom: 8px;
        }

        .article-content ol li {
            list-style: decimal;
            margin-bottom: 8px;
        }

        .article-content blockquote {
            padding: 16px 22px;
            margin: 24px 0;
            border-left: 4px solid var(--mint);
            background: rgba(63, 224, 197, 0.06);
            color: var(--text-secondary);
            border-radius: 0 8px 8px 0;
            font-style: italic;
        }

        .article-content img {
            border-radius: 12px;
            border: 1px solid var(--border-glass);
            margin: 24px 0;
            width: 100%;
            height: auto;
        }

        .article-content a {
            color: var(--mint);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color .2s ease;
        }

        .article-content a:hover {
            color: var(--primary-light);
        }

        .article-not-found {
            text-align: center;
            padding: 60px 20px;
        }

        .article-not-found h2 {
            font-size: 28px;
            color: var(--text-main);
            margin-bottom: 28px;
        }

        /* Related */
        .related-section {
            margin-top: 60px;
            max-width: 1100px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-head {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 32px;
        }

        .section-no {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary-light);
            background: rgba(61, 139, 255, 0.12);
            border: 1px solid rgba(61, 139, 255, 0.4);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.5px;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .info-card {
            background: rgba(255, 255, 255, 0.045);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .info-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
        }

        .info-card:hover {
            transform: translateY(-4px);
            border-color: rgba(61, 139, 255, 0.45);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35), 0 0 20px rgba(61, 139, 255, 0.18);
        }

        .info-card-cover {
            position: relative;
            height: 180px;
            overflow: hidden;
            background: #0e1a30;
        }

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

        .info-card:hover .info-card-cover img {
            transform: scale(1.02);
        }

        .info-card-cat {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            background: rgba(10, 17, 32, 0.85);
            border: 1px solid rgba(61, 139, 255, 0.4);
            color: var(--primary-light);
            font-size: 12px;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            z-index: 2;
        }

        .info-card-cat.cat-mint {
            border-color: rgba(63, 224, 197, 0.4);
            color: var(--mint);
        }

        .info-card-cat.cat-orange {
            border-color: rgba(255, 154, 98, 0.4);
            color: var(--orange);
        }

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

        .info-card-title {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text-main);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .info-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
            flex: 1;
        }

        .info-card-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            padding-top: 14px;
            margin-top: auto;
        }

        .info-card-link {
            color: var(--primary-light);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .3s ease;
        }

        .info-card-link:hover {
            gap: 10px;
            color: var(--mint);
        }

        .related-back {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-top: 40px;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: rgba(5, 10, 22, 0.95);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            position: relative;
            padding-top: 60px;
            z-index: 1;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(61, 139, 255, 0.5), transparent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 50px;
        }

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

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
            color: var(--text-main);
        }

        .footer-col ul li {
            margin-bottom: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color .3s ease, padding-left .3s ease;
        }

        .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }

        .footer-copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-copyright .sep {
            display: inline-block;
            margin: 0 12px;
            color: rgba(255, 255, 255, 0.2);
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

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

            .article-h1 {
                font-size: 32px;
            }

            .article-content {
                padding: 36px 34px;
            }

            .article-hero-panel {
                padding: 32px 30px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 18px;
            }

            .header-top {
                padding: 10px 0;
            }

            .logo-icon {
                width: 38px;
                height: 38px;
                font-size: 17px;
                border-radius: 10px;
            }

            .logo-name {
                font-size: 18px;
            }

            .logo-sub {
                font-size: 10px;
                letter-spacing: 2px;
            }

            .header-cta {
                padding: 8px 16px;
                font-size: 13px;
            }

            .chip {
                padding: 7px 16px;
                font-size: 13px;
            }

            .article-section {
                padding: 30px 0 24px;
            }

            .article-hero-panel {
                padding: 26px 20px;
            }

            .article-h1 {
                font-size: 26px;
                line-height: 1.4;
            }

            .article-abstract {
                font-size: 15px;
            }

            .article-meta-row {
                gap: 12px;
                font-size: 13px;
                flex-direction: column;
                align-items: flex-start;
            }

            .article-main {
                padding: 30px 0 50px;
            }

            .article-content {
                padding: 26px 20px;
                font-size: 15.5px;
                line-height: 1.95;
            }

            .article-content h2 {
                font-size: 21px;
                padding-left: 14px;
            }

            .article-content h3 {
                font-size: 18px;
            }

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

            .section-head {
                flex-wrap: wrap;
            }

            .section-head h2 {
                font-size: 22px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .footer-copyright {
                font-size: 12px;
                line-height: 1.8;
            }

            .footer-copyright .sep {
                display: block;
                margin: 4px 0;
            }
        }

        @media (max-width: 520px) {
            .btn {
                width: 100%;
            }

            .related-back {
                flex-direction: column;
            }

            .header-cta {
                width: auto;
            }
        }