/* roulang page: index */
:root{
  --primary:#e63946;
  --primary-dark:#c12636;
  --primary-light:#ff6b6b;
  --secondary:#1d3557;
  --secondary-light:#2d4a7d;
  --accent:#f4a261;
  --bg:#f4f6f9;
  --surface:#ffffff;
  --text:#1a1a2e;
  --text-light:#7b8494;
  --border:#e8eaed;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(0,0,0,0.06);
  --shadow-lg:0 16px 44px rgba(0,0,0,0.1);
  --shadow-primary:0 8px 22px rgba(230,57,70,0.25);
  --sidebar-width:248px;
  --transition:all 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-main:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:var(--transition)}
img{max-width:100%;display:block;border-radius:var(--radius)}
button,input,select,textarea{font-family:inherit;font-size:inherit;outline:none}
ul,ol{list-style:none}

.mobile-topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  z-index:1200;
  height:60px;
  background:var(--surface);
  box-shadow:0 2px 12px rgba(0,0,0,0.08);
  align-items:center;
  justify-content:space-between;
  padding:0 20px;
}
.mobile-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:18px;
  color:var(--primary);
}
.hamburger{
  background:var(--secondary);
  border:none;
  border-radius:10px;
  width:40px;
  height:40px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:16px;
  cursor:pointer;
  transition:var(--transition);
}
.hamburger:hover{background:var(--secondary-light)}

.sidebar{
  position:fixed;
  top:0;left:0;
  width:var(--sidebar-width);
  height:100vh;
  background:var(--surface);
  border-right:1px solid var(--border);
  z-index:1100;
  display:flex;
  flex-direction:column;
}
.sidebar-inner{
  display:flex;
  flex-direction:column;
  height:100%;
  padding:28px 20px 20px;
}
.sidebar-logo{
  display:flex;
  align-items:center;
  gap:12px;
  padding:6px 6px 24px;
  border-bottom:1px solid var(--border);
}
.logo-icon{
  width:40px;
  height:40px;
  min-width:40px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:17px;
  box-shadow:var(--shadow-primary);
}
.logo-text{
  font-weight:800;
  font-size:17px;
  color:var(--text);
  line-height:1.35;
  letter-spacing:-0.2px;
}
.sidebar-nav{
  margin-top:28px;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.nav-item{
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 14px;
  border-radius:12px;
  color:var(--text-light);
  font-weight:600;
  font-size:15px;
  transition:var(--transition);
}
.nav-item i{
  width:20px;
  text-align:center;
  font-size:16px;
}
.nav-item:hover{
  background:var(--bg);
  color:var(--secondary);
}
.nav-item.active{
  background:linear-gradient(135deg,rgba(230,57,70,0.12),rgba(244,162,97,0.08));
  color:var(--primary);
  box-shadow:inset 0 0 0 1px rgba(230,57,70,0.2);
}
.sidebar-footer{
  margin-top:auto;
  padding-top:20px;
  border-top:1px solid var(--border);
}
.sidebar-tip{
  font-size:13px;
  color:var(--text-light);
  margin-bottom:6px;
}
.sidebar-copy{
  font-size:12px;
  color:#a0a8b5;
}
.sidebar-overlay{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(0,0,0,0.45);
  z-index:1050;
  opacity:0;
  visibility:hidden;
  transition:var(--transition);
}

.main-wrapper{
  margin-left:var(--sidebar-width);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
.page-header{
  background:var(--surface);
  border-bottom:1px solid var(--border);
  padding:18px 40px;
  position:sticky;
  top:0;
  z-index:900;
}
.page-header-inner{
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.page-badge{
  display:inline-block;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;
  font-size:12px;
  font-weight:700;
  padding:3px 12px;
  border-radius:20px;
  letter-spacing:0.5px;
  text-transform:uppercase;
  margin-bottom:4px;
}
.page-title{
  font-size:20px;
  font-weight:800;
  color:var(--text);
  letter-spacing:-0.3px;
}
.page-tools{
  display:flex;
  align-items:center;
  gap:14px;
}
.page-search{
  display:flex;
  align-items:center;
  gap:8px;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:30px;
  padding:8px 16px;
  transition:var(--transition);
}
.page-search i{
  color:var(--text-light);
  font-size:14px;
}
.page-search input{
  border:none;
  background:transparent;
  font-size:14px;
  width:180px;
}
.page-search:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(230,57,70,0.1);
}
.page-tools .btn{font-size:14px;padding:9px 18px}

.container{
  max-width:1200px;
  margin:0 auto;
  padding:0 40px;
}
main{flex:1}

.hero{
  position:relative;
  border-radius:0 0 32px 32px;
  overflow:hidden;
  margin-bottom:36px;
}
.hero-bg{
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  z-index:-2;
}
.hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(29,53,87,0.92) 0%,rgba(29,53,87,0.7) 45%,rgba(230,57,70,0.72) 100%);
}
.hero-content{
  max-width:1200px;
  margin:0 auto;
  padding:90px 40px 70px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,0.15);
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,0.25);
  color:#fff;
  font-size:13px;
  font-weight:600;
  padding:6px 16px;
  border-radius:30px;
  margin-bottom:22px;
}
.hero-badge i{font-size:12px}
.hero-title{
  font-size:48px;
  font-weight:900;
  color:#fff;
  line-height:1.2;
  letter-spacing:-1px;
  margin-bottom:18px;
  max-width:700px;
}
.hero-title span{
  color:var(--accent);
}
.hero-subtitle{
  color:rgba(255,255,255,0.82);
  font-size:17px;
  max-width:620px;
  margin-bottom:32px;
  line-height:1.8;
}
.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:44px;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 28px;
  border-radius:12px;
  border:none;
  font-weight:700;
  font-size:15px;
  cursor:pointer;
  transition:var(--transition);
  text-align:center;
  justify-content:center;
}
.btn i{font-size:14px}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:var(--shadow-primary);
}
.btn-primary:hover{
  background:var(--primary-dark);
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(230,57,70,0.32);
}
.btn-outline{
  background:rgba(255,255,255,0.14);
  color:#fff;
  border:1px solid rgba(255,255,255,0.35);
  backdrop-filter:blur(8px);
}
.btn-outline:hover{
  background:rgba(255,255,255,0.24);
  transform:translateY(-2px);
}
.hero-stats{
  display:flex;
  gap:28px;
  flex-wrap:wrap;
  padding-top:10px;
  border-top:1px solid rgba(255,255,255,0.18);
}
.hero-stat-item{
  display:flex;
  flex-direction:column;
}
.hero-stat-num{
  font-size:30px;
  font-weight:900;
  color:#fff;
  line-height:1.2;
}
.hero-stat-label{
  font-size:13px;
  color:rgba(255,255,255,0.7);
  margin-top:2px;
}

.section{
  padding:58px 0;
}
.section-head{
  max-width:720px;
  margin-bottom:40px;
}
.section-head.center{
  margin-left:auto;
  margin-right:auto;
  text-align:center;
}
.section-badge{
  display:inline-block;
  background:rgba(230,57,70,0.08);
  color:var(--primary);
  font-size:12px;
  font-weight:800;
  letter-spacing:1px;
  text-transform:uppercase;
  padding:4px 14px;
  border-radius:20px;
  margin-bottom:10px;
}
.section-title{
  font-size:34px;
  font-weight:900;
  letter-spacing:-0.8px;
  line-height:1.25;
  color:var(--text);
  margin-bottom:12px;
}
.section-subtitle{
  font-size:16px;
  color:var(--text-light);
  line-height:1.7;
}

.intro-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.feature-card{
  background:var(--surface);
  border-radius:var(--radius);
  padding:34px 28px;
  box-shadow:var(--shadow);
  border:1px solid rgba(0,0,0,0.04);
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.feature-card::after{
  content:"";
  position:absolute;
  top:0;left:0;
  width:100%;
  height:4px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  opacity:0;
  transition:var(--transition);
}
.feature-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
}
.feature-card:hover::after{opacity:1}
.feature-icon{
  width:52px;
  height:52px;
  border-radius:14px;
  background:linear-gradient(135deg,rgba(230,57,70,0.12),rgba(244,162,97,0.1));
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--primary);
  font-size:20px;
  margin-bottom:18px;
  transition:var(--transition);
}
.feature-card:hover .feature-icon{
  background:var(--primary);
  color:#fff;
}
.feature-title{
  font-size:18px;
  font-weight:800;
  margin-bottom:10px;
  color:var(--text);
}
.feature-text{
  font-size:14px;
  color:var(--text-light);
  line-height:1.75;
}

.category-card{
  border-radius:20px;
  overflow:hidden;
  background:var(--surface);
  box-shadow:var(--shadow);
  transition:var(--transition);
  position:relative;
  border:1px solid rgba(0,0,0,0.04);
}
.category-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
}
.category-card-img{
  position:relative;
  height:280px;
  overflow:hidden;
}
.category-card-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 0.5s ease;
}
.category-card:hover .category-card-img img{
  transform:scale(1.06);
}
.category-card-img::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to top,var(--secondary) 0%,transparent 55%);
  opacity:0.85;
}
.category-card-body{
  position:absolute;
  bottom:0;
  left:0;
  right:0;
  padding:28px;
  z-index:2;
}
.category-card-tag{
  display:inline-block;
  background:rgba(255,255,255,0.15);
  backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,0.25);
  color:#fff;
  font-size:12px;
  font-weight:700;
  padding:3px 12px;
  border-radius:20px;
  margin-bottom:10px;
}
.category-card-body h3{
  color:#fff;
  font-size:22px;
  font-weight:800;
  margin-bottom:6px;
}
.category-card-body p{
  color:rgba(255,255,255,0.8);
  font-size:14px;
  line-height:1.6;
  max-width:420px;
}
.category-card-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:#fff;
  font-size:14px;
  font-weight:700;
  margin-top:14px;
  border-bottom:2px solid var(--accent);
  transition:var(--transition);
}
.category-card-link:hover{
  color:var(--accent);
}

.stats-section{
  background:linear-gradient(135deg,var(--secondary) 0%,var(--secondary-light) 100%);
  border-radius:24px;
  padding:46px 40px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.stats-section::before{
  content:"";position:absolute;
  width:300px;height:300px;
  border-radius:50%;
  background:rgba(230,57,70,0.25);
  top:-120px;right:-80px;
}
.stats-section::after{
  content:"";position:absolute;
  width:200px;height:200px;
  border-radius:50%;
  background:rgba(244,162,97,0.2);
  bottom:-100px;left:-60px;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:30px;
  position:relative;
  z-index:2;
}
.stats-item{
  text-align:center;
  padding:20px 10px;
  background:rgba(255,255,255,0.08);
  border-radius:18px;
  backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,0.1);
}
.stats-num{
  font-size:40px;
  font-weight:900;
  margin-bottom:6px;
  background:linear-gradient(135deg,var(--accent),#ffd9a0);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.stats-label{
  font-size:14px;
  opacity:0.85;
}

.process-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
  counter-reset:step;
}
.step-card{
  background:var(--surface);
  border-radius:var(--radius);
  padding:32px 26px;
  box-shadow:var(--shadow);
  border:1px solid rgba(0,0,0,0.04);
  position:relative;
  transition:var(--transition);
}
.step-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
}
.step-num{
  width:42px;
  height:42px;
  border-radius:12px;
  background:var(--secondary);
  color:#fff;
  font-weight:800;
  font-size:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:16px;
}
.step-card:nth-child(2) .step-num{
  background:var(--primary);
}
.step-card:nth-child(3) .step-num{
  background:var(--accent);
  color:var(--secondary);
}
.step-title{
  font-size:17px;
  font-weight:800;
  margin-bottom:8px;
}
.step-text{
  font-size:14px;
  color:var(--text-light);
  line-height:1.7;
}

.news-section{
  background:var(--surface);
  border-radius:24px;
  box-shadow:var(--shadow);
  padding:40px;
}
.news-list{
  margin-top:8px;
}
.news-item{
  display:flex;
  align-items:center;
  gap:18px;
  padding:18px 0;
  border-bottom:1px solid var(--border);
  transition:var(--transition);
}
.news-item:last-child{border-bottom:none}
.news-item:hover{
  padding-left:10px;
  background:linear-gradient(90deg,rgba(230,57,70,0.03),transparent);
}
.news-category{
  flex-shrink:0;
  background:rgba(230,57,70,0.08);
  color:var(--primary);
  font-size:12px;
  font-weight:700;
  padding:3px 12px;
  border-radius:20px;
  white-space:nowrap;
}
.news-main{
  flex:1;
  min-width:0;
}
.news-title{
  font-size:16px;
  font-weight:700;
  color:var(--text);
  margin-bottom:4px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.news-desc{
  font-size:13px;
  color:var(--text-light);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.news-date{
  flex-shrink:0;
  font-size:13px;
  color:#a0a8b5;
  white-space:nowrap;
}
.news-empty{
  text-align:center;
  color:var(--text-light);
  padding:36px 0;
}

.faq-grid{
  max-width:840px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.faq-item{
  background:var(--surface);
  border-radius:14px;
  box-shadow:var(--shadow);
  border:1px solid rgba(0,0,0,0.03);
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:rgba(230,57,70,0.2);
}
.faq-question{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  cursor:pointer;
  font-weight:700;
  font-size:15px;
  color:var(--text);
}
.faq-question i{
  color:var(--primary);
  font-size:14px;
  transition:var(--transition);
}
.faq-item.open .faq-question i{
  transform:rotate(45deg);
}
.faq-answer{
  padding:0 24px;
  max-height:0;
  overflow:hidden;
  transition:max-height 0.35s ease;
}
.faq-item.open .faq-answer{
  max-height:300px;
  padding-bottom:20px;
}
.faq-answer p{
  font-size:14px;
  color:var(--text-light);
  line-height:1.8;
  border-top:1px solid var(--border);
  padding-top:14px;
}

.cta-section{
  background:linear-gradient(120deg,var(--primary),var(--accent));
  border-radius:24px;
  padding:56px 48px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-section::before{
  content:"";position:absolute;
  width:220px;height:220px;
  border-radius:50%;
  background:rgba(255,255,255,0.08);
  top:-90px;right:-40px;
}
.cta-section::after{
  content:"";position:absolute;
  width:160px;height:160px;
  border-radius:50%;
  background:rgba(255,255,255,0.06);
  bottom:-60px;left:-50px;
}
.cta-title{
  font-size:30px;
  font-weight:900;
  color:#fff;
  margin-bottom:10px;
  letter-spacing:-0.5px;
}
.cta-text{
  color:rgba(255,255,255,0.9);
  font-size:16px;
  margin-bottom:28px;
}
.cta-actions{
  display:flex;
  gap:14px;
  justify-content:center;
  flex-wrap:wrap;
  position:relative;
  z-index:2;
}
.btn-white{
  background:#fff;
  color:var(--primary);
  box-shadow:0 8px 20px rgba(0,0,0,0.12);
}
.btn-white:hover{
  background:var(--secondary);
  color:#fff;
  transform:translateY(-2px);
}
.btn-ghost{
  background:rgba(255,255,255,0.15);
  color:#fff;
  border:1px solid rgba(255,255,255,0.4);
}
.btn-ghost:hover{
  background:rgba(255,255,255,0.3);
  transform:translateY(-2px);
}

.site-footer{
  background:var(--secondary);
  color:#c7d1dd;
  margin-top:28px;
}
.footer-inner{
  max-width:1200px;
  margin:0 auto;
  padding:48px 40px 32px;
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:40px;
}
.footer-brand .footer-logo{
  font-size:20px;
  font-weight:900;
  color:#fff;
  margin-bottom:12px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.7;
  opacity:0.8;
  max-width:340px;
}
.footer-link-col h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.footer-link-col a{
  display:block;
  font-size:14px;
  padding:5px 0;
  color:#aab6c6;
  transition:var(--transition);
}
.footer-link-col a:hover{
  color:var(--accent);
  padding-left:6px;
}
.footer-copyright{
  border-top:1px solid rgba(255,255,255,0.1);
  padding:20px 0;
  text-align:center;
  font-size:13px;
  opacity:0.7;
}

@media (max-width:1024px){
  .hero-title{font-size:40px}
  .intro-grid,.process-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:991px){
  .sidebar{
    left:-280px;
    transition:left 0.35s ease;
  }
  .sidebar.open{
    left:0;
  }
  .sidebar-overlay.show{
    display:block;
    opacity:1;
    visibility:visible;
  }
  .mobile-topbar{display:flex}
  .main-wrapper{
    margin-left:0;
    padding-top:60px;
  }
  body.lock-scroll{
    overflow:hidden;
  }
  .page-header{
    padding:14px 20px;
  }
  .container{
    padding:0 20px;
  }
  .hero-content{
    padding:60px 20px 50px;
  }
}
@media (max-width:768px){
  .hero-title{font-size:32px}
  .hero-subtitle{font-size:15px}
  .section-title{font-size:28px}
  .section{padding:44px 0}
  .page-search input{width:100px}
  .page-tools .btn{padding:8px 14px;font-size:13px}
}
@media (max-width:520px){
  .mobile-topbar{padding:0 14px}
  .hero-title{font-size:27px}
  .hero-stats{gap:18px}
  .hero-stat-num{font-size:24px}
  .intro-grid,.process-grid,.stats-grid{grid-template-columns:1fr}
  .category-card-img{height:220px}
  .news-section{padding:24px}
  .news-item{flex-wrap:wrap;gap:10px}
  .news-title{white-space:normal}
  .news-desc{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
  .news-date{width:100%}
  .cta-section{padding:40px 24px}
  .cta-title{font-size:24px}
  .footer-inner{grid-template-columns:1fr}
  .page-header-inner{flex-wrap:wrap}
  .page-tools{width:100%}
  .page-search{flex:1}
  .page-search input{flex:1;width:auto}
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --primary: #e63946;
  --primary-dark: #c1121f;
  --primary-light: #ff6b6b;
  --secondary: #1d3557;
  --secondary-dark: #14213d;
  --accent: #f4a261;
  --bg: #f5f7fa;
  --bg-dark: #0f1923;
  --card-bg: #ffffff;
  --text: #1a1a2e;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
  --sidebar-width: 260px;
  --space-section: 72px;
}

/* ===== 基础 Reset ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

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

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

ul,
ol {
  list-style: none;
}

/* ===== 通用容器与布局 ===== */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.main-wrap {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== 左侧导航 ===== */
.sidebar {
  width: var(--sidebar-width);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  background: var(--bg-dark);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  padding: 32px 20px;
  overflow-y: auto;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 8px 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 28px;
}

.logo-mark {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  flex-shrink: 0;
}

.logo-text {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.5px;
  line-height: 1.3;
}

.logo-text span {
  display: block;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 400;
  margin-top: 2px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 16px;
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-item i {
  width: 22px;
  text-align: center;
  font-size: 17px;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.nav-item.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 4px 14px rgba(230, 57, 70, 0.35);
}

.sidebar-footer {
  margin-top: auto;
  padding: 24px 8px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-footer p {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.35);
  line-height: 1.6;
}

/* ===== 移动端顶部栏 ===== */
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 900;
  background: var(--bg-dark);
  padding: 14px 20px;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.mobile-logo {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.mobile-logo .logo-mark {
  width: 34px;
  height: 34px;
  font-size: 16px;
  border-radius: 10px;
}

.menu-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  border-radius: 10px;
  transition: var(--transition);
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 990;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.sidebar-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

/* ===== Banner ===== */
.page-banner {
  position: relative;
  padding: 90px 0 80px;
  background: linear-gradient(135deg, rgba(15, 25, 35, 0.92), rgba(29, 53, 87, 0.75)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
}

.page-banner-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.75);
  transition: var(--transition);
}

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

.breadcrumb i {
  font-size: 12px;
}

.page-banner h1 {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.page-banner h1 .highlight {
  color: var(--accent);
}

.page-banner p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 640px;
  line-height: 1.7;
}

.banner-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 100px;
  font-size: 13px;
  color: #fff;
  backdrop-filter: blur(8px);
  transition: var(--transition);
}

.banner-tag:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: var(--primary-light);
}

/* ===== 通用板块 ===== */
.section {
  padding: var(--space-section) 0;
}

.section-alt {
  background: #fff;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(230, 57, 70, 0.1);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 14px;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== 卡片组件 ===== */
.grid {
  display: grid;
  gap: 24px;
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* 特性区 */
.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 68px;
  height: 68px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin: 0 auto 20px;
  color: #fff;
}

.feature-icon.red {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: 0 6px 18px rgba(230, 57, 70, 0.3);
}

.feature-icon.blue {
  background: linear-gradient(135deg, #3a86ff, var(--secondary));
  box-shadow: 0 6px 18px rgba(29, 53, 87, 0.3);
}

.feature-icon.orange {
  background: linear-gradient(135deg, var(--accent), #e76f51);
  box-shadow: 0 6px 18px rgba(244, 162, 97, 0.3);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* 赛事卡片 */
.events-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.event-card {
  display: flex;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--border);
}

.event-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.event-cover {
  width: 260px;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.event-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.event-card:hover .event-cover img {
  transform: scale(1.08);
}

.event-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.25));
}

.event-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.event-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.event-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.event-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
}

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

/* 标签分类 */
.tags-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  max-width: 900px;
  margin: 0 auto;
}

.tag-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
}

.tag-item i {
  color: var(--primary);
  font-size: 16px;
}

.tag-item:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(230, 57, 70, 0.12);
}

/* 流程步骤 */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.step-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
}

.step-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.step-num {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
}

.step-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 数据统计 */
.stats-section {
  background: var(--bg-dark);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(230, 57, 70, 0.2), transparent 70%);
  pointer-events: none;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
  z-index: 1;
}

.stat-item {
  text-align: center;
  padding: 20px;
}

.stat-value {
  font-size: 48px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 8px;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}

.stat-value span {
  color: var(--accent);
  font-size: 32px;
  font-weight: 600;
}

.stat-label {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 1px;
}

/* FAQ */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  box-shadow: var(--shadow-lg);
}

.faq-question {
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: none;
  width: 100%;
  text-align: left;
  transition: var(--transition);
}

.faq-question i {
  font-size: 16px;
  color: var(--primary);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer p {
  padding: 0 28px 22px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin: 0 28px 22px;
  padding-left: 0;
  padding-right: 0;
}

/* CTA */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, rgba(29, 53, 87, 0.9), rgba(15, 25, 35, 0.95)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  text-align: center;
}

.cta-content {
  max-width: 680px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 32px;
  line-height: 1.7;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 34px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 6px 20px rgba(230, 57, 70, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(230, 57, 70, 0.45);
}

.btn-outline-light {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
  background: transparent;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  transform: translateY(-3px);
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-dark);
  color: #fff;
  padding: 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 32px 40px;
}

.footer-brand .footer-logo {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 14px;
  color: #fff;
}

.footer-brand p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
  max-width: 360px;
}

.footer-link-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-link-col a {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  padding: 5px 0;
  transition: var(--transition);
}

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

.footer-copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 32px;
  text-align: center;
}

.footer-copyright p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .intro-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .events-grid {
    grid-template-columns: 1fr;
  }
  .event-cover {
    width: 220px;
  }
}

@media (max-width: 991px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.35s ease;
    box-shadow: 4px 0 30px rgba(0, 0, 0, 0.2);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main-wrap {
    margin-left: 0;
  }
  .mobile-header {
    display: flex;
  }
  .sidebar-overlay {
    display: block;
  }
  .sidebar-overlay.show {
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 52px;
  }

  .container,
  .page-banner-content {
    padding: 0 20px;
  }

  .page-banner {
    padding: 60px 0 52px;
  }

  .page-banner h1 {
    font-size: 32px;
  }

  .page-banner p {
    font-size: 15px;
  }

  .section-title {
    font-size: 26px;
  }

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

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

  .event-card {
    flex-direction: column;
  }

  .event-cover {
    width: 100%;
    height: 190px;
  }

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

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

  .stat-value {
    font-size: 36px;
  }

  .stat-value span {
    font-size: 24px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 20px 24px;
  }

  .cta-content h2 {
    font-size: 26px;
  }

  .btn {
    padding: 12px 28px;
    font-size: 14px;
  }
}

@media (max-width: 520px) {
  .page-banner h1 {
    font-size: 27px;
  }

  .banner-tags {
    gap: 8px;
  }

  .banner-tag {
    padding: 6px 14px;
    font-size: 12px;
  }

  .tag-item {
    padding: 11px 20px;
    font-size: 14px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .stat-value {
    font-size: 30px;
  }

  .stat-label {
    font-size: 13px;
  }

  .faq-question {
    padding: 18px 20px;
    font-size: 15px;
  }

  .mobile-header {
    padding: 12px 16px;
  }
}

/* 动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.section {
  animation: fadeInUp 0.6s ease both;
}

.section:nth-child(2) {
  animation-delay: 0.1s;
}
.section:nth-child(3) {
  animation-delay: 0.2s;
}

/* roulang page: article */
:root {
      --primary: #e63946;
      --primary-dark: #c1121f;
      --primary-light: #ff6b6b;
      --secondary: #f77f00;
      --accent: #fcbf49;
      --bg: #f5f6fa;
      --surface: #ffffff;
      --text: #1a1a2e;
      --text-weak: #6c757d;
      --border: #e9ecef;
      --radius: 16px;
      --radius-sm: 10px;
      --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
      --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.12);
      --sidebar-width: 260px;
      --transition: 0.3s ease;
      --content-max: 1200px;
      --footer-bg: #1a1a2e;
      --footer-text: rgba(255, 255, 255, 0.7);
    }

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

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      line-height: 1.7;
      color: var(--text);
      background: var(--bg);
      font-size: 16px;
      min-height: 100vh;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition), background var(--transition), box-shadow var(--transition);
    }

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

    ul,
    ol {
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: var(--content-max);
      margin: 0 auto;
      padding: 0 24px;
    }

    .app-shell {
      display: flex;
      min-height: 100vh;
      width: 100%;
    }

    .main-wrapper {
      flex: 1;
      min-width: 0;
      margin-left: var(--sidebar-width);
      display: flex;
      flex-direction: column;
    }

    .sidebar {
      width: var(--sidebar-width);
      background: #1a1a2e;
      color: #fff;
      position: fixed;
      top: 0;
      bottom: 0;
      left: 0;
      z-index: 1000;
      display: flex;
      flex-direction: column;
      padding: 24px 16px;
      transition: transform var(--transition);
      box-shadow: 4px 0 24px rgba(0, 0, 0, 0.08);
    }

    .sidebar-logo {
      font-size: 22px;
      font-weight: 800;
      color: #fff;
      letter-spacing: 0.5px;
      padding: 8px 12px 24px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      margin-bottom: 24px;
      display: flex;
      align-items: center;
      gap: 10px;
      line-height: 1.3;
    }

    .sidebar-logo i {
      color: var(--accent);
      font-size: 20px;
    }

    .sidebar-nav {
      display: flex;
      flex-direction: column;
      gap: 8px;
      flex: 1;
    }

    .nav-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 14px 16px;
      border-radius: var(--radius-sm);
      color: rgba(255, 255, 255, 0.7);
      font-weight: 500;
      font-size: 15px;
      transition: var(--transition);
    }

    .nav-item i {
      width: 20px;
      text-align: center;
      font-size: 16px;
    }

    .nav-item:hover {
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
      transform: translateX(4px);
    }

    .nav-item.active {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 8px 24px rgba(230, 57, 70, 0.35);
    }

    .sidebar-bottom {
      padding-top: 16px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    .sidebar-cta {
      display: block;
      text-align: center;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, var(--secondary), var(--accent));
      color: #1a1a2e;
      font-weight: 700;
      font-size: 14px;
      transition: var(--transition);
    }

    .sidebar-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(247, 127, 0, 0.3);
    }

    .top-header {
      display: none;
      position: sticky;
      top: 0;
      z-index: 900;
      background: var(--surface);
      padding: 12px 16px;
      border-bottom: 1px solid var(--border);
      align-items: center;
      justify-content: space-between;
      box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    }

    .menu-toggle {
      font-size: 20px;
      color: var(--text);
      padding: 8px 10px;
      border-radius: 8px;
      transition: background var(--transition);
    }

    .menu-toggle:hover {
      background: var(--bg);
    }

    .top-logo {
      font-weight: 800;
      font-size: 18px;
      color: var(--primary);
      white-space: nowrap;
    }

    .main-content {
      flex: 1;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 24px;
      border-radius: 100px;
      font-size: 15px;
      font-weight: 600;
      transition: all var(--transition);
      border: 2px solid transparent;
      line-height: 1.4;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 8px 24px rgba(230, 57, 70, 0.3);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 12px 32px rgba(230, 57, 70, 0.4);
    }

    .btn-outline {
      background: transparent;
      border-color: var(--primary);
      color: var(--primary);
    }

    .btn-outline:hover {
      background: var(--primary);
      color: #fff;
      transform: translateY(-2px);
    }

    .btn-light {
      background: #fff;
      color: var(--text);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    }

    .btn-light:hover {
      background: var(--bg);
      transform: translateY(-2px);
      box-shadow: 0 10px 28px rgba(0, 0, 0, 0.16);
    }

    .btn-block {
      width: 100%;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      background: var(--primary);
      color: #fff;
      border-radius: 100px;
      font-size: 13px;
      font-weight: 600;
    }

    .badge-outline {
      background: rgba(255, 255, 255, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.4);
      backdrop-filter: blur(4px);
    }

    .article-hero {
      position: relative;
      background-size: cover;
      background-position: center;
      padding: 80px 0 60px;
      color: #fff;
    }

    .article-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(26, 26, 46, 0.9) 0%, rgba(26, 26, 46, 0.6) 60%, rgba(230, 57, 70, 0.5) 100%);
    }

    .article-hero .container {
      position: relative;
      z-index: 1;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.8);
      margin-bottom: 24px;
    }

    .breadcrumb a {
      color: rgba(255, 255, 255, 0.8);
      transition: color var(--transition);
    }

    .breadcrumb a:hover {
      color: #fff;
    }

    .breadcrumb i.fa-chevron-right {
      font-size: 10px;
      color: rgba(255, 255, 255, 0.4);
    }

    .breadcrumb span {
      color: #fff;
      max-width: 320px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .article-hero-badge {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 20px;
    }

    .article-hero h1 {
      font-size: 44px;
      line-height: 1.25;
      font-weight: 800;
      max-width: 820px;
      margin-bottom: 20px;
      text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    }

    .article-hero-desc {
      font-size: 18px;
      line-height: 1.6;
      max-width: 720px;
      color: rgba(255, 255, 255, 0.9);
    }

    .article-body-section {
      padding: 60px 0;
    }

    .article-layout {
      display: grid;
      grid-template-columns: 1fr 340px;
      gap: 40px;
      align-items: start;
    }

    .article-content {
      background: var(--surface);
      border-radius: var(--radius);
      padding: 48px;
      box-shadow: var(--shadow);
      line-height: 1.9;
      font-size: 16.5px;
      color: #2d2d3a;
    }

    .article-content h2 {
      font-size: 26px;
      margin: 36px 0 16px;
      padding-bottom: 10px;
      border-bottom: 2px solid var(--bg);
      color: var(--text);
      line-height: 1.4;
    }

    .article-content h3 {
      font-size: 21px;
      margin: 28px 0 12px;
      color: var(--text);
      line-height: 1.4;
    }

    .article-content p {
      margin-bottom: 18px;
    }

    .article-content ul,
    .article-content ol {
      margin: 16px 0 24px;
      padding-left: 24px;
    }

    .article-content ul {
      list-style: disc;
    }

    .article-content ol {
      list-style: decimal;
    }

    .article-content li {
      margin-bottom: 10px;
    }

    .article-content img {
      border-radius: var(--radius);
      margin: 24px 0;
      box-shadow: var(--shadow);
    }

    .article-content blockquote {
      border-left: 4px solid var(--primary);
      background: #fdf2f2;
      padding: 16px 20px;
      border-radius: 0 12px 12px 0;
      margin: 24px 0;
      color: var(--text-weak);
    }

    .article-content a {
      color: var(--primary);
      text-decoration: underline;
    }

    .article-content a:hover {
      text-decoration: none;
    }

    .article-content table {
      width: 100%;
      border-collapse: collapse;
      margin: 24px 0;
      font-size: 15px;
    }

    .article-content th,
    .article-content td {
      border: 1px solid var(--border);
      padding: 10px 14px;
      text-align: left;
    }

    .article-content th {
      background: var(--bg);
      font-weight: 600;
    }

    .article-sidebar {
      display: flex;
      flex-direction: column;
      gap: 24px;
      position: sticky;
      top: 24px;
    }

    .side-card {
      background: var(--surface);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow);
      border: 1px solid var(--border);
    }

    .side-card h3 {
      font-size: 18px;
      margin-bottom: 16px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border);
      position: relative;
    }

    .side-card h3::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -1px;
      width: 40px;
      height: 3px;
      background: var(--primary);
      border-radius: 2px;
    }

    .side-card ul li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      padding: 10px 0;
      font-size: 14px;
      color: var(--text-weak);
      border-bottom: 1px dashed var(--border);
      line-height: 1.6;
    }

    .side-card ul li:last-child {
      border-bottom: none;
    }

    .side-card ul li i {
      color: var(--primary);
      margin-top: 3px;
      width: 16px;
      text-align: center;
      flex-shrink: 0;
    }

    .side-img {
      width: 100%;
      height: 160px;
      object-fit: cover;
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
    }

    .side-card p {
      font-size: 14px;
      color: var(--text-weak);
      line-height: 1.7;
      margin-bottom: 16px;
    }

    .related-section {
      padding: 60px 0;
      background: var(--surface);
      border-top: 1px solid var(--border);
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      margin-bottom: 32px;
      gap: 20px;
      flex-wrap: wrap;
    }

    .section-head.center {
      justify-content: center;
      text-align: center;
      flex-direction: column;
      align-items: center;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 12px;
      background: rgba(230, 57, 70, 0.1);
      color: var(--primary);
      border-radius: 100px;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 10px;
    }

    .section-head h2 {
      font-size: 30px;
      font-weight: 800;
    }

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

    .related-card {
      background: var(--surface);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      border: 1px solid var(--border);
      transition: all var(--transition);
      display: block;
    }

    .related-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }

    .related-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }

    .related-card-body {
      padding: 20px;
    }

    .card-tag {
      display: inline-block;
      padding: 4px 10px;
      background: rgba(247, 127, 0, 0.12);
      color: var(--secondary);
      border-radius: 100px;
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 10px;
    }

    .related-card h3 {
      font-size: 18px;
      line-height: 1.4;
      font-weight: 700;
      margin-bottom: 8px;
      transition: color var(--transition);
    }

    .related-card:hover h3 {
      color: var(--primary);
    }

    .related-card p {
      font-size: 14px;
      color: var(--text-weak);
      line-height: 1.6;
    }

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

    .faq-grid {
      max-width: 800px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: var(--surface);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      border: 1px solid var(--border);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item:hover {
      box-shadow: var(--shadow-hover);
    }

    .faq-item summary {
      cursor: pointer;
      padding: 20px 24px;
      font-weight: 600;
      font-size: 16px;
      list-style: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      position: relative;
      transition: color var(--transition);
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary::after {
      content: "\f078";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      font-size: 14px;
      color: var(--text-weak);
      transition: transform var(--transition), color var(--transition);
      flex-shrink: 0;
    }

    .faq-item[open] summary::after {
      transform: rotate(180deg);
      color: var(--primary);
    }

    .faq-item[open] summary {
      color: var(--primary);
    }

    .faq-item p {
      padding: 0 24px 20px;
      color: var(--text-weak);
      font-size: 15px;
      line-height: 1.7;
    }

    .cta-section {
      padding: 40px 0 60px;
    }

    .cta-box {
      position: relative;
      background-size: cover;
      background-position: center;
      border-radius: 24px;
      padding: 56px 48px;
      text-align: center;
      color: #fff;
      overflow: hidden;
    }

    .cta-box::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(230, 57, 70, 0.85), rgba(26, 26, 46, 0.75));
    }

    .cta-box h2,
    .cta-box p,
    .cta-box .btn {
      position: relative;
      z-index: 1;
    }

    .cta-box h2 {
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .cta-box p {
      font-size: 17px;
      margin-bottom: 24px;
      opacity: 0.92;
    }

    .not-found-section {
      min-height: 60vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 60px 24px;
    }

    .not-found-box {
      text-align: center;
      background: var(--surface);
      border-radius: 24px;
      padding: 56px 48px;
      box-shadow: var(--shadow);
      max-width: 520px;
      width: 100%;
      border: 1px solid var(--border);
    }

    .not-found-box i {
      font-size: 56px;
      color: var(--primary);
      margin-bottom: 20px;
    }

    .not-found-box h1 {
      font-size: 28px;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .not-found-box p {
      color: var(--text-weak);
      margin-bottom: 24px;
    }

    .site-footer {
      background: var(--footer-bg);
      color: var(--footer-text);
      padding: 48px 24px 24px;
    }

    .footer-inner {
      max-width: var(--content-max);
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 32px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .footer-brand .footer-logo {
      font-size: 22px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.7;
      max-width: 360px;
    }

    .footer-link-col h4 {
      color: #fff;
      font-size: 16px;
      margin-bottom: 16px;
    }

    .footer-link-col a {
      display: block;
      padding: 6px 0;
      font-size: 14px;
      color: var(--footer-text);
      transition: var(--transition);
    }

    .footer-link-col a:hover {
      color: #fff;
      transform: translateX(4px);
    }

    .footer-copyright {
      max-width: var(--content-max);
      margin: 0 auto;
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.4);
    }

    .sidebar-overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(26, 26, 46, 0.5);
      z-index: 990;
      backdrop-filter: blur(2px);
    }

    .sidebar-overlay.show {
      display: block;
    }

    @media (max-width: 1024px) {
      .sidebar {
        transform: translateX(-100%);
        box-shadow: 8px 0 40px rgba(0, 0, 0, 0.2);
      }

      .sidebar.open {
        transform: translateX(0);
      }

      .main-wrapper {
        margin-left: 0;
      }

      .top-header {
        display: flex;
      }

      .article-layout {
        grid-template-columns: 1fr;
      }

      .article-sidebar {
        position: static;
      }

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

    @media (max-width: 768px) {
      .container {
        padding: 0 16px;
      }

      .article-hero {
        padding: 60px 0 40px;
      }

      .article-hero h1 {
        font-size: 30px;
      }

      .article-hero-desc {
        font-size: 16px;
      }

      .article-content {
        padding: 24px;
      }

      .section-head h2 {
        font-size: 24px;
      }

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

      .footer-inner {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .cta-box {
        padding: 40px 24px;
      }

      .cta-box h2 {
        font-size: 24px;
      }

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

      .not-found-box {
        padding: 40px 24px;
      }
    }

    @media (max-width: 520px) {
      .related-card img {
        height: 170px;
      }

      .article-content {
        padding: 16px;
        font-size: 15.5px;
      }

      .article-content h2 {
        font-size: 22px;
      }

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

      .badge {
        font-size: 12px;
        padding: 5px 10px;
      }

      .btn {
        padding: 11px 18px;
        font-size: 14px;
      }
    }