/* roulang page: index */
/* ===== DESIGN SYSTEM ===== */
:root {
--primary: #1a3a5c;
--primary-light: #2c5f8a;
--primary-dark: #0f2440;
--accent: #e8834a;
--accent-light: #f09e6a;
--accent-dark: #d06a30;
--bg: #f7f8fa;
--bg-card: #ffffff;
--bg-sidebar: #ffffff;
--text: #1d1d1f;
--text-light: #6c757d;
--text-muted: #9aa0a6;
--border: #e5e5ea;
--radius: 14px;
--radius-sm: 8px;
--radius-lg: 20px;
--shadow: 0 2px 16px rgba(0,0,0,0.06);
--shadow-hover: 0 8px 32px rgba(0,0,0,0.10);
--transition: 0.25s cubic-bezier(0.4,0,0.2,1);
--sidebar-width: 260px;
--header-height: 0px;
--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
/* ===== RESET ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;display:block}
button,input,textarea{font-family:inherit;font-size:1rem}
ul{list-style:none}
/* ===== LAYOUT ===== */
.app-shell{display:flex;min-height:100vh}
/* ===== SIDEBAR ===== */
.sidebar{position:fixed;top:0;left:0;width:var(--sidebar-width);height:100vh;background:var(--bg-sidebar);border-right:1px solid var(--border);z-index:1000;display:flex;flex-direction:column;transition:transform var(--transition);overflow-y:auto}
.sidebar-brand{padding:24px 20px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px}
.sidebar-brand .brand-icon{width:38px;height:38px;background:var(--primary);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.25rem;flex-shrink:0}
.sidebar-brand .brand-text{font-size:1.15rem;font-weight:700;color:var(--primary);line-height:1.3;letter-spacing:0.3px}
.sidebar-nav{flex:1;padding:16px 12px}
.sidebar-nav .nav-label{font-size:0.7rem;text-transform:uppercase;letter-spacing:1px;color:var(--text-muted);padding:12px 12px 6px;font-weight:600}
.sidebar-nav a{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:var(--radius-sm);color:var(--text);font-weight:500;font-size:0.95rem;transition:all var(--transition);margin-bottom:2px}
.sidebar-nav a i{width:20px;text-align:center;font-size:1.05rem;color:var(--text-light);transition:color var(--transition)}
.sidebar-nav a:hover{background:#f0f2f5;color:var(--primary)}
.sidebar-nav a:hover i{color:var(--primary)}
.sidebar-nav a.active{background:var(--primary);color:#fff}
.sidebar-nav a.active i{color:#fff}
.sidebar-footer{padding:16px 20px 24px;border-top:1px solid var(--border);font-size:0.8rem;color:var(--text-muted);text-align:center}
/* ===== MAIN CONTENT ===== */
.main-content{flex:1;margin-left:var(--sidebar-width);min-height:100vh}
/* ===== MOBILE HEADER ===== */
.mobile-header{display:none;position:sticky;top:0;z-index:999;background:var(--bg-sidebar);border-bottom:1px solid var(--border);padding:12px 16px;align-items:center;justify-content:space-between}
.mobile-header .brand-text{font-size:1.05rem;font-weight:700;color:var(--primary)}
.mobile-header .hamburger{background:none;border:none;font-size:1.5rem;color:var(--text);cursor:pointer;padding:4px 8px;border-radius:var(--radius-sm);transition:background var(--transition)}
.mobile-header .hamburger:hover{background:#f0f2f5}
/* overlay */
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.35);z-index:999;opacity:0;transition:opacity var(--transition);pointer-events:none}
.sidebar-overlay.open{opacity:1;pointer-events:auto}
/* ===== CONTAINER ===== */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
/* ===== HERO ===== */
.hero{position:relative;min-height:520px;display:flex;align-items:center;background:var(--primary-dark);background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;background-blend-mode:overlay;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(26,58,92,0.88) 0%,rgba(15,36,64,0.72) 100%);z-index:1}
.hero .container{position:relative;z-index:2;width:100%}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,0.12);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,0.18);padding:6px 16px;border-radius:40px;color:#fff;font-size:0.85rem;margin-bottom:20px;font-weight:500}
.hero-badge i{font-size:0.75rem;color:var(--accent-light)}
.hero h1{font-size:3.2rem;font-weight:800;color:#fff;line-height:1.2;margin-bottom:16px;max-width:720px;letter-spacing:-0.5px}
.hero h1 span{color:var(--accent-light)}
.hero p{font-size:1.15rem;color:rgba(255,255,255,0.85);max-width:580px;margin-bottom:32px;line-height:1.7}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:40px;font-weight:600;font-size:0.95rem;border:none;cursor:pointer;transition:all var(--transition);text-decoration:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(232,131,74,0.35)}
.btn-outline{background:transparent;border:1.5px solid rgba(255,255,255,0.4);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,0.12);border-color:#fff;color:#fff;transform:translateY(-2px)}
.btn-outline-light{background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.2);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,0.18);color:#fff}
/* ===== SECTION ===== */
.section{padding:80px 0}
.section-dark{background:var(--primary);color:#fff}
.section-dark .text-muted{color:rgba(255,255,255,0.65)}
.section-light{background:var(--bg)}
.section-white{background:#fff}
.section-header{text-align:center;margin-bottom:48px}
.section-header h2{font-size:2.2rem;font-weight:700;color:var(--text);margin-bottom:12px;letter-spacing:-0.3px}
.section-header p{font-size:1.05rem;color:var(--text-light);max-width:620px;margin:0 auto;line-height:1.7}
.section-dark .section-header h2{color:#fff}
.section-dark .section-header p{color:rgba(255,255,255,0.75)}
.tag{display:inline-block;padding:4px 14px;border-radius:40px;font-size:0.75rem;font-weight:600;text-transform:uppercase;letter-spacing:0.5px;background:rgba(232,131,74,0.12);color:var(--accent);margin-bottom:12px}
.section-dark .tag{background:rgba(255,255,255,0.12);color:var(--accent-light)}
/* ===== FEATURES ===== */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--bg-card);border-radius:var(--radius);padding:32px 28px;box-shadow:var(--shadow);border:1px solid var(--border);transition:all var(--transition)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:transparent}
.feature-card .icon{width:52px;height:52px;border-radius:14px;background:rgba(26,58,92,0.08);display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:var(--primary);margin-bottom:18px}
.feature-card h3{font-size:1.2rem;font-weight:600;margin-bottom:8px;color:var(--text)}
.feature-card p{font-size:0.92rem;color:var(--text-light);line-height:1.6}
/* ===== CATEGORY CARDS ===== */
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.category-card{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:var(--bg-card);border:1px solid var(--border);transition:all var(--transition);cursor:pointer;display:block;color:inherit;text-decoration:none}
.category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:transparent;color:inherit}
.category-card .card-img{width:100%;height:200px;object-fit:cover;display:block}
.category-card .card-body{padding:20px 22px 24px}
.category-card .card-body h3{font-size:1.15rem;font-weight:600;margin-bottom:6px;color:var(--text)}
.category-card .card-body p{font-size:0.9rem;color:var(--text-light);line-height:1.5}
.category-card .card-tag{display:inline-block;padding:2px 12px;border-radius:40px;font-size:0.7rem;font-weight:600;background:rgba(232,131,74,0.1);color:var(--accent);margin-bottom:8px}
/* ===== STATS ===== */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat-item{padding:24px 16px}
.stat-number{font-size:2.8rem;font-weight:800;color:#fff;line-height:1.2;margin-bottom:4px}
.stat-label{font-size:0.95rem;color:rgba(255,255,255,0.7)}
/* ===== POST LIST ===== */
.post-list{display:flex;flex-direction:column;gap:16px}
.post-item{display:flex;align-items:flex-start;gap:20px;background:var(--bg-card);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow);border:1px solid var(--border);transition:all var(--transition)}
.post-item:hover{transform:translateX(4px);box-shadow:var(--shadow-hover);border-color:transparent}
.post-item .post-thumb{width:80px;height:80px;border-radius:var(--radius-sm);object-fit:cover;flex-shrink:0}
.post-item .post-info{flex:1;min-width:0}
.post-item .post-info h4{font-size:1.05rem;font-weight:600;margin-bottom:4px;color:var(--text);line-height:1.4}
.post-item .post-info h4 a{color:inherit;text-decoration:none}
.post-item .post-info h4 a:hover{color:var(--primary)}
.post-item .post-info p{font-size:0.88rem;color:var(--text-light);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px;font-size:0.78rem;color:var(--text-muted)}
.post-meta span{display:inline-flex;align-items:center;gap:4px}
.post-meta .cat-badge{background:rgba(26,58,92,0.08);padding:0 10px;border-radius:40px;color:var(--primary);font-weight:500}
.empty-state{padding:40px 20px;text-align:center;color:var(--text-muted);background:var(--bg-card);border-radius:var(--radius);border:1px dashed var(--border);font-size:0.95rem}
/* ===== STEPS ===== */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-card{text-align:center;padding:32px 16px;background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);position:relative;transition:all var(--transition)}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.step-number{width:48px;height:48px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:700;margin:0 auto 16px}
.step-card h3{font-size:1.1rem;font-weight:600;margin-bottom:6px;color:var(--text)}
.step-card p{font-size:0.88rem;color:var(--text-light);line-height:1.5}
/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--bg-card);border-radius:var(--radius-sm);border:1px solid var(--border);overflow:hidden;transition:border-color var(--transition)}
.faq-item:hover{border-color:var(--primary-light)}
.faq-question{width:100%;background:none;border:none;padding:16px 20px;text-align:left;font-size:1rem;font-weight:500;color:var(--text);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;transition:color var(--transition)}
.faq-question::after{content:'\f078';font-family:'Font Awesome 6 Free';font-weight:900;font-size:0.75rem;color:var(--text-muted);transition:transform var(--transition)}
.faq-question.open::after{transform:rotate(180deg)}
.faq-answer{padding:0 20px 16px;font-size:0.92rem;color:var(--text-light);line-height:1.7;display:none}
.faq-answer.show{display:block}
/* ===== CTA ===== */
.cta-section{background:var(--primary);background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;background-blend-mode:overlay;position:relative}
.cta-section::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(26,58,92,0.92) 0%,rgba(15,36,64,0.78) 100%);z-index:1}
.cta-section .container{position:relative;z-index:2;text-align:center;padding:72px 24px}
.cta-section h2{font-size:2.4rem;font-weight:700;color:#fff;margin-bottom:12px}
.cta-section p{font-size:1.1rem;color:rgba(255,255,255,0.8);max-width:560px;margin:0 auto 28px}
.cta-section .btn-primary{font-size:1.05rem;padding:14px 36px}
/* ===== FOOTER ===== */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,0.7);padding:48px 0 20px}
.site-footer .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
.site-footer .footer-brand .brand-text{font-size:1.2rem;font-weight:700;color:#fff;margin-bottom:8px;display:block}
.site-footer .footer-brand p{font-size:0.88rem;line-height:1.6;max-width:300px}
.site-footer h4{font-size:0.95rem;font-weight:600;color:#fff;margin-bottom:12px}
.site-footer ul li{margin-bottom:6px}
.site-footer ul li a{color:rgba(255,255,255,0.6);font-size:0.88rem;transition:color var(--transition)}
.site-footer ul li a:hover{color:var(--accent-light)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding-top:20px;text-align:center;font-size:0.82rem;color:rgba(255,255,255,0.4)}
.footer-bottom a{color:rgba(255,255,255,0.5)}
.footer-bottom a:hover{color:var(--accent-light)}
/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
.hero h1{font-size:2.6rem}
.features-grid,.category-grid{grid-template-columns:repeat(2,1fr)}
.steps-grid{grid-template-columns:repeat(2,1fr)}
.stats-grid{grid-template-columns:repeat(2,1fr)}
.site-footer .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
.sidebar{transform:translateX(-100%)}
.sidebar.open{transform:translateX(0)}
.mobile-header{display:flex}
.sidebar-overlay{display:block}
.main-content{margin-left:0}
.hero{min-height:420px}
.hero h1{font-size:2rem}
.hero p{font-size:1rem}
.features-grid,.category-grid{grid-template-columns:1fr}
.steps-grid{grid-template-columns:1fr 1fr}
.stats-grid{grid-template-columns:1fr 1fr}
.section{padding:56px 0}
.section-header h2{font-size:1.7rem}
.cta-section h2{font-size:1.8rem}
.post-item{flex-direction:column;gap:12px}
.post-item .post-thumb{width:100%;height:160px}
.site-footer .footer-grid{grid-template-columns:1fr;text-align:center}
.site-footer .footer-brand p{max-width:100%}
}
@media(max-width:520px){
.hero h1{font-size:1.6rem}
.hero-actions{flex-direction:column;align-items:stretch}
.btn{justify-content:center}
.steps-grid{grid-template-columns:1fr}
.stats-grid{grid-template-columns:1fr}
.container{padding:0 16px}
.section-header h2{font-size:1.4rem}
.cta-section h2{font-size:1.5rem}
.stat-number{font-size:2.2rem}
}
/* ===== UTILITY ===== */
.text-center{text-align:center}
.mt-16{margin-top:16px}
.mt-24{margin-top:24px}
.mt-32{margin-top:32px}
.mb-16{margin-bottom:16px}
.gap-12{gap:12px}
.flex-center{display:flex;align-items:center;justify-content:center}

/* roulang page: category1 */
/* ===== Design Variables ===== */
:root {
  --primary: #1a3a6b;
  --primary-light: #2a5298;
  --primary-dark: #0f2444;
  --secondary: #e8a838;
  --secondary-light: #f0c35a;
  --accent: #c0392b;
  --bg-body: #f5f7fa;
  --bg-card: #ffffff;
  --bg-dark: #0f1a2e;
  --bg-muted: #eef1f5;
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a6a;
  --text-muted: #8888a0;
  --text-light: #ffffff;
  --text-link: #2a5298;
  --border: #dce1e8;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 6px 24px rgba(0,0,0,0.10);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.18);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --sidebar-width: 240px;
  --header-h: 0px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  min-height: 100vh;
}
a { color: var(--text-link); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-light); }
img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; font-size: 1rem; }
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
}

/* ===== Sidebar Navigation (App Shell) ===== */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-dark);
  color: var(--text-light);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  box-shadow: 2px 0 20px rgba(0,0,0,0.25);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.sidebar-brand {
  padding: 28px 20px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sidebar-brand .brand-text {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--secondary);
  display: block;
  line-height: 1.3;
}
.sidebar-brand .brand-sub {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  margin-top: 4px;
  letter-spacing: 0.3px;
}
.sidebar-nav {
  padding: 16px 12px;
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.nav-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: rgba(255,255,255,0.3);
  padding: 12px 12px 8px;
  font-weight: 600;
}
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 16px;
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  text-decoration: none;
}
.sidebar-nav a i { width: 18px; text-align: center; font-size: 0.95rem; color: rgba(255,255,255,0.4); transition: var(--transition); }
.sidebar-nav a:hover { background: rgba(255,255,255,0.08); color: #fff; }
.sidebar-nav a:hover i { color: var(--secondary); }
.sidebar-nav a.active { background: rgba(232,168,56,0.15); color: var(--secondary); }
.sidebar-nav a.active i { color: var(--secondary); }
.sidebar-footer-nav {
  padding: 12px;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin-top: auto;
}
.sidebar-footer-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.45);
  font-size: 0.8rem;
  transition: var(--transition);
}
.sidebar-footer-nav a:hover { color: #fff; background: rgba(255,255,255,0.06); }

/* ===== Main Content Area ===== */
.main-wrapper {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.main-content {
  flex: 1;
  padding: 0 0 60px;
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  padding: 80px 0 70px;
  background: var(--primary-dark);
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  opacity: 0.2;
  z-index: 0;
}
.page-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,26,46,0.92) 0%, rgba(26,58,107,0.75) 100%);
  z-index: 1;
}
.page-banner .container { position: relative; z-index: 2; }
.page-banner h1 {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--text-light);
  letter-spacing: -0.5px;
  line-height: 1.2;
  margin-bottom: 12px;
}
.page-banner h1 i { color: var(--secondary); margin-right: 10px; }
.page-banner p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  max-width: 680px;
  line-height: 1.6;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin-bottom: 24px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}
.breadcrumb a { color: rgba(255,255,255,0.65); text-decoration: none; }
.breadcrumb a:hover { color: var(--secondary); }
.breadcrumb .sep { color: rgba(255,255,255,0.25); }

/* ===== Sections ===== */
.section {
  padding: 70px 0;
}
.section-alt { background: var(--bg-muted); }
.section-dark { background: var(--bg-dark); color: var(--text-light); }
.section-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 12px;
  color: var(--text-primary);
}
.section-dark .section-title { color: var(--text-light); }
.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 40px;
  line-height: 1.6;
}
.section-dark .section-subtitle { color: rgba(255,255,255,0.6); }
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header .section-title { margin-bottom: 8px; }
.section-header .section-subtitle { margin: 0 auto; }

/* ===== Cards ===== */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--border);
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.card-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; display: block; }
.card-body { padding: 24px; }
.card-body h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 8px; color: var(--text-primary); }
.card-body p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.6; }
.card-body .tag { display: inline-block; padding: 3px 12px; border-radius: 20px; font-size: 0.72rem; font-weight: 600; background: var(--bg-muted); color: var(--text-secondary); margin-bottom: 10px; }
.card-body .tag.primary { background: rgba(26,58,107,0.1); color: var(--primary); }
.card-body .tag.gold { background: rgba(232,168,56,0.15); color: #b8860b; }

/* ===== Grid ===== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 20px; }
}

/* ===== Steps / Timeline ===== */
.steps { counter-reset: step-counter; display: flex; flex-direction: column; gap: 28px; max-width: 800px; margin: 0 auto; }
.step-item { display: flex; gap: 24px; align-items: flex-start; counter-increment: step-counter; }
.step-num {
  flex: 0 0 52px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  position: relative;
  box-shadow: 0 4px 14px rgba(26,58,107,0.25);
}
.step-item:not(:last-child) .step-num::after {
  content: '';
  position: absolute;
  top: 56px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: calc(100% + 8px);
  background: var(--border);
}
.step-content { padding-top: 6px; flex: 1; }
.step-content h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 6px; color: var(--text-primary); }
.step-content p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.6; }

/* ===== FAQ ===== */
.faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--bg-card); border-radius: var(--radius-md); border: 1px solid var(--border); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: var(--primary-light); }
.faq-q { padding: 18px 24px; font-weight: 600; font-size: 1rem; cursor: pointer; display: flex; justify-content: space-between; align-items: center; color: var(--text-primary); user-select: none; }
.faq-q i { color: var(--text-muted); transition: var(--transition); font-size: 0.85rem; }
.faq-item.open .faq-q i { transform: rotate(180deg); color: var(--secondary); }
.faq-a { padding: 0 24px; max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; color: var(--text-secondary); font-size: 0.92rem; line-height: 1.7; }
.faq-item.open .faq-a { max-height: 400px; padding: 0 24px 20px; }

/* ===== CTA ===== */
.cta-block {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
  color: var(--text-light);
  position: relative;
  overflow: hidden;
}
.cta-block::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  opacity: 0.08;
  z-index: 0;
}
.cta-block .container { position: relative; z-index: 1; }
.cta-block h2 { font-size: 2rem; font-weight: 700; margin-bottom: 12px; }
.cta-block p { font-size: 1.05rem; color: rgba(255,255,255,0.75); max-width: 560px; margin: 0 auto 28px; }
.btn-group { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  background: var(--bg-card);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-primary { background: var(--secondary); color: var(--primary-dark); }
.btn-primary:hover { background: var(--secondary-light); color: var(--primary-dark); }
.btn-outline { background: transparent; border: 2px solid rgba(255,255,255,0.3); color: var(--text-light); }
.btn-outline:hover { border-color: var(--secondary); color: var(--secondary); background: rgba(232,168,56,0.08); }
.btn-sm { padding: 9px 20px; font-size: 0.85rem; }

/* ===== Tags ===== */
.tags-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-item { display: inline-flex; align-items: center; gap: 6px; padding: 6px 18px; border-radius: 50px; font-size: 0.85rem; font-weight: 500; background: var(--bg-card); border: 1px solid var(--border); color: var(--text-secondary); transition: var(--transition); cursor: default; }
.tag-item i { color: var(--primary); font-size: 0.75rem; }
.tag-item:hover { border-color: var(--primary-light); color: var(--primary); box-shadow: var(--shadow-sm); }

/* ===== Stats ===== */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-card { text-align: center; padding: 32px 20px; background: var(--bg-card); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: var(--transition); }
.stat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.stat-num { font-size: 2.4rem; font-weight: 800; color: var(--primary); line-height: 1.2; }
.stat-label { font-size: 0.9rem; color: var(--text-secondary); margin-top: 6px; }
@media (max-width: 768px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .stats-grid { grid-template-columns: 1fr; } }

/* ===== Entry List ===== */
.entry-list { display: flex; flex-direction: column; gap: 20px; }
.entry-item { display: flex; gap: 24px; background: var(--bg-card); border-radius: var(--radius-md); padding: 20px; border: 1px solid var(--border); transition: var(--transition); }
.entry-item:hover { box-shadow: var(--shadow-sm); border-color: var(--primary-light); }
.entry-icon { flex: 0 0 48px; width: 48px; height: 48px; border-radius: var(--radius-sm); background: rgba(26,58,107,0.08); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: var(--primary); }
.entry-body { flex: 1; }
.entry-body h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 4px; }
.entry-body p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }
.entry-meta { font-size: 0.78rem; color: var(--text-muted); margin-top: 6px; display: flex; gap: 16px; }
@media (max-width: 520px) { .entry-item { flex-direction: column; gap: 12px; } }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 56px 0 0;
  font-size: 0.9rem;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-brand .brand-text { font-size: 1.2rem; font-weight: 700; color: var(--secondary); display: block; margin-bottom: 10px; }
.footer-brand p { color: rgba(255,255,255,0.5); max-width: 320px; line-height: 1.7; font-size: 0.88rem; }
.site-footer h4 { color: #fff; font-size: 0.95rem; font-weight: 600; margin-bottom: 16px; }
.site-footer ul { display: flex; flex-direction: column; gap: 10px; }
.site-footer ul a { color: rgba(255,255,255,0.5); text-decoration: none; font-size: 0.88rem; transition: var(--transition); }
.site-footer ul a:hover { color: var(--secondary); }
.footer-bottom { padding: 24px 0; text-align: center; color: rgba(255,255,255,0.35); font-size: 0.82rem; }
.footer-bottom a { color: rgba(255,255,255,0.45); }
.footer-bottom a:hover { color: var(--secondary); }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }

/* ===== Mobile Toggle ===== */
.mobile-toggle {
  display: none;
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 1100;
  background: var(--bg-dark);
  color: var(--secondary);
  border: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}
.mobile-toggle:hover { background: var(--primary); }
@media (max-width: 768px) {
  .mobile-toggle { display: flex; align-items: center; justify-content: center; }
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-wrapper { margin-left: 0; }
  .page-banner { padding: 60px 0 50px; }
  .page-banner h1 { font-size: 1.8rem; }
  .section { padding: 48px 0; }
  .cta-block { padding: 36px 24px; }
  .cta-block h2 { font-size: 1.5rem; }
}
@media (max-width: 520px) {
  .page-banner h1 { font-size: 1.5rem; }
  .section-title { font-size: 1.5rem; }
  .step-item { flex-direction: column; gap: 12px; }
  .step-num { flex: 0 0 42px; width: 42px; height: 42px; font-size: 1rem; }
  .step-item:not(:last-child) .step-num::after { display: none; }
}

/* ===== Overlay for mobile ===== */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 999;
}
.sidebar-overlay.show { display: block; }
@media (max-width: 768px) {
  .sidebar-overlay.show { display: block; }
}

/* ===== Utility ===== */
.text-center { text-align: center; }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.gap-16 { gap: 16px; }
.flex-center { display: flex; align-items: center; justify-content: center; }

/* ===== Animations ===== */
@keyframes fadeUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.animate-fade-up { animation: fadeUp 0.6s ease forwards; }

/* ===== Backdrop fix ===== */
.bg-cover-fixed { background-attachment: fixed; }
@media (max-width: 768px) { .bg-cover-fixed { background-attachment: scroll; } }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-dark: #0f2440;
            --accent: #e8a63a;
            --accent-light: #f0c06a;
            --accent-dark: #c88a1a;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f2440;
            --bg-section-alt: #eef1f6;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-light: #7a8a9a;
            --text-white: #ffffff;
            --text-accent: #e8a63a;
            --border: #dce2ea;
            --border-light: #e8ecf2;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --sidebar-width: 240px;
            --header-height: 0px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            display: flex;
            min-height: 100vh;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
        }

        /* ===== 左侧导航 (App Shell) ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: var(--bg-dark);
            color: var(--text-white);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            transition: transform var(--transition);
            overflow-y: auto;
        }
        .sidebar-brand {
            padding: 28px 20px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .sidebar-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--bg-dark);
            flex-shrink: 0;
        }
        .sidebar-brand .brand-text {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }
        .sidebar-nav {
            padding: 16px 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: rgba(255, 255, 255, 0.35);
            padding: 8px 12px 6px;
            font-weight: 600;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 11px 16px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            font-weight: 500;
            transition: all var(--transition);
            text-decoration: none;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-white);
        }
        .sidebar-nav a.active {
            background: rgba(232, 166, 58, 0.18);
            color: var(--accent);
            font-weight: 600;
        }
        .sidebar-nav a.active i {
            color: var(--accent);
        }
        .sidebar-footer {
            padding: 16px 20px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 12px;
            color: rgba(255, 255, 255, 0.35);
            text-align: center;
            line-height: 1.5;
        }

        /* ===== 主内容区 ===== */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .main-content {
            flex: 1;
        }

        /* ===== 移动端菜单切换 ===== */
        .menu-toggle {
            display: none;
            position: fixed;
            top: 14px;
            left: 14px;
            z-index: 1100;
            background: var(--primary-dark);
            color: var(--text-white);
            border: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            font-size: 20px;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: background var(--transition);
            align-items: center;
            justify-content: center;
        }
        .menu-toggle:hover {
            background: var(--primary-light);
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            backdrop-filter: blur(4px);
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 28px;
        }
        .container-narrow {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ===== Hero / Banner ===== */
        .page-hero {
            position: relative;
            padding: 80px 0 70px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: var(--text-white);
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 36, 64, 0.88) 30%, rgba(26, 58, 92, 0.72) 70%, rgba(232, 166, 58, 0.20) 100%);
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
        }
        .page-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
        }
        .page-hero .breadcrumb a:hover {
            color: var(--accent);
        }
        .page-hero .breadcrumb span {
            color: var(--accent);
        }
        .page-hero h1 {
            font-size: 44px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            line-height: 1.7;
        }
        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(232, 166, 58, 0.2);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
            border: 1px solid rgba(232, 166, 58, 0.25);
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-white {
            background: var(--bg-white);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-title {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
            color: var(--text-primary);
        }
        .section-dark .section-title {
            color: var(--text-white);
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 620px;
            margin-bottom: 48px;
            line-height: 1.6;
        }
        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        .section-header .section-title {
            position: relative;
            display: inline-block;
        }
        .section-header .section-title::after {
            content: '';
            display: block;
            width: 50px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 12px auto 0;
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card-grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .card-grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        /* ===== 服务卡片 ===== */
        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent);
            opacity: 0;
            transition: opacity var(--transition);
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-card .card-icon {
            width: 52px;
            height: 52px;
            background: rgba(232, 166, 58, 0.12);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent);
            margin-bottom: 18px;
            transition: background var(--transition);
        }
        .service-card:hover .card-icon {
            background: var(--accent);
            color: var(--bg-dark);
        }
        .service-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .service-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .service-card .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(232, 166, 58, 0.1);
            padding: 2px 12px;
            border-radius: 12px;
            margin-top: 14px;
        }

        /* ===== 特色/优势区块 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .feature-item {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .feature-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .feature-item .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--text-white);
        }
        .feature-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .feature-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .feature-item .feature-stat {
            font-size: 32px;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 4px;
        }

        /* ===== 展示/图文区块 ===== */
        .showcase-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .showcase-grid .showcase-image {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            background: var(--bg-dark);
        }
        .showcase-grid .showcase-image img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            border-radius: var(--radius-md);
            transition: transform 0.6s ease;
        }
        .showcase-grid .showcase-image:hover img {
            transform: scale(1.03);
        }
        .showcase-content h2 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .showcase-content p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .showcase-content .showcase-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 16px;
        }
        .showcase-content .showcase-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--text-secondary);
        }
        .showcase-content .showcase-list li i {
            color: var(--accent);
            font-size: 16px;
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* ===== 统计数字 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: background var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.10);
        }
        .stat-item .stat-number {
            font-size: 38px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-item .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 18px 0;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            padding: 4px 0;
            transition: color var(--transition);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-question i {
            font-size: 14px;
            color: var(--text-light);
            transition: transform var(--transition);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px 0 0;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-top: 12px;
            padding-bottom: 8px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.10;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 540px;
            margin: 0 auto 28px;
        }
        .cta-section .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            transition: all var(--transition);
            cursor: pointer;
            border: 2px solid transparent;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--bg-dark);
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: var(--bg-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 166, 58, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border-color: rgba(255, 255, 255, 0.4);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--text-white);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: var(--primary-light);
            color: var(--text-white);
            border-color: var(--primary-light);
        }
        .btn-secondary:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 58, 92, 0.30);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 18px;
        }

        /* ===== 标签 / 徽章 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            background: rgba(232, 166, 58, 0.12);
            color: var(--accent-dark);
            border: 1px solid rgba(232, 166, 58, 0.2);
        }
        .badge-primary {
            background: rgba(26, 58, 92, 0.10);
            color: var(--primary-light);
            border-color: rgba(26, 58, 92, 0.15);
        }
        .badge-white {
            background: rgba(255, 255, 255, 0.15);
            color: var(--text-white);
            border-color: rgba(255, 255, 255, 0.2);
        }

        /* ===== 列表 ===== */
        .list-check {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .list-check li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--text-secondary);
        }
        .list-check li i {
            color: var(--accent);
            font-size: 15px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* ===== 分隔线 ===== */
        .divider {
            height: 1px;
            background: var(--border);
            margin: 0;
            border: none;
        }
        .divider-light {
            background: rgba(255, 255, 255, 0.08);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 52px 0 28px;
            margin-top: auto;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .site-footer .footer-brand .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-white);
            display: block;
            margin-bottom: 10px;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 300px;
        }
        .site-footer h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
        }
        .site-footer ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .site-footer ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
            transition: color var(--transition);
        }
        .site-footer ul li a:hover {
            color: var(--accent);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .showcase-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .showcase-grid .showcase-image img {
                height: 280px;
            }
            .page-hero h1 {
                font-size: 36px;
            }
            .section-title {
                font-size: 28px;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay.open {
                display: block;
            }
            .menu-toggle {
                display: flex;
            }
            .main-wrapper {
                margin-left: 0;
            }
            .page-hero {
                padding: 60px 0 50px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p {
                font-size: 16px;
            }
            .container {
                padding: 0 18px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .card-grid-2 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .card-grid-4 {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-item .stat-number {
                font-size: 28px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .showcase-grid .showcase-image img {
                height: 200px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-section .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .btn-lg {
                padding: 14px 32px;
                font-size: 16px;
            }
            .section-header .section-subtitle {
                font-size: 15px;
            }
            .service-card {
                padding: 24px 20px;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 24px;
            }
            .page-hero p {
                font-size: 14px;
            }
            .section-title {
                font-size: 22px;
            }
            .card-grid-4 {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item {
                padding: 18px 12px;
            }
            .stat-item .stat-number {
                font-size: 24px;
            }
            .service-card .card-icon {
                width: 44px;
                height: 44px;
                font-size: 18px;
            }
            .service-card h3 {
                font-size: 17px;
            }
            .feature-item .feature-icon {
                width: 52px;
                height: 52px;
                font-size: 20px;
            }
            .site-footer .footer-grid {
                gap: 20px;
            }
            .menu-toggle {
                width: 38px;
                height: 38px;
                font-size: 17px;
                top: 10px;
                left: 10px;
            }
            .sidebar-brand {
                padding: 20px 16px 12px;
            }
            .sidebar-brand .brand-text {
                font-size: 15px;
            }
            .sidebar-nav a {
                font-size: 14px;
                padding: 10px 14px;
            }
        }

        /* ===== 可访问性 ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== 滚动条美化 ===== */
        .sidebar::-webkit-scrollbar {
            width: 4px;
        }
        .sidebar::-webkit-scrollbar-track {
            background: transparent;
        }
        .sidebar::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 4px;
        }
        .sidebar::-webkit-scrollbar-thumb:hover {
            background: rgba(255, 255, 255, 0.25);
        }

/* roulang page: article */
:root {
  --primary: #0f1a2e;
  --primary-light: #1a3a6a;
  --primary-mid: #2d5da8;
  --accent: #d4a030;
  --accent-hover: #e8b840;
  --bg: #f0f3f7;
  --white: #ffffff;
  --text: #1a1a2e;
  --text-light: #6b7280;
  --text-muted: #9ca3af;
  --border: #e5e7eb;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --sidebar-width: 260px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  display: flex;
  min-height: 100vh;
}
a { color: var(--primary-mid); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; width: 100%; }

/* Sidebar */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--primary);
  color: var(--white);
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow-y: auto;
  transition: transform var(--transition);
}
.sidebar-brand {
  padding: 28px 24px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: 12px;
}
.sidebar-brand .brand-icon {
  width: 40px; height: 40px;
  background: var(--accent);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; color: var(--primary); font-weight: 700;
  flex-shrink: 0;
}
.sidebar-brand .brand-text {
  font-size: 18px; font-weight: 700;
  color: var(--white);
  letter-spacing: 0.5px;
  line-height: 1.3;
}
.sidebar-nav { padding: 16px 12px; flex: 1; }
.sidebar-nav .nav-label {
  font-size: 11px; text-transform: uppercase;
  letter-spacing: 1.5px;
  color: rgba(255,255,255,0.35);
  padding: 8px 12px 10px;
  font-weight: 600;
}
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.75);
  font-size: 15px;
  font-weight: 500;
  transition: all var(--transition);
  margin-bottom: 2px;
}
.sidebar-nav a i { width: 20px; text-align: center; font-size: 16px; }
.sidebar-nav a:hover {
  background: rgba(255,255,255,0.08);
  color: var(--white);
}
.sidebar-nav a.active {
  background: var(--accent);
  color: var(--primary);
  font-weight: 600;
  box-shadow: 0 2px 12px rgba(212,160,48,0.3);
}

/* Main Content */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Article Header Banner */
.article-banner {
  position: relative;
  padding: 60px 0 50px;
  background: var(--primary-light);
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  background-blend-mode: overlay;
  color: var(--white);
  overflow: hidden;
}
.article-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,26,46,0.85) 0%, rgba(26,58,106,0.7) 100%);
  z-index: 1;
}
.article-banner .container { position: relative; z-index: 2; }
.article-banner .breadcrumb {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.article-banner .breadcrumb a { color: rgba(255,255,255,0.7); }
.article-banner .breadcrumb a:hover { color: var(--accent); }
.article-banner .breadcrumb span { color: rgba(255,255,255,0.4); }
.article-banner .post-category {
  display: inline-block;
  background: var(--accent);
  color: var(--primary);
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 14px;
}
.article-banner h1 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.3;
  max-width: 800px;
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}
.article-banner .post-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 14px;
  color: rgba(255,255,255,0.7);
}
.article-banner .post-meta i { margin-right: 6px; font-size: 13px; }

/* Article Body */
.article-body-wrap {
  padding: 40px 0 60px;
  flex: 1;
}
.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
}
.article-main { min-width: 0; }
.article-sidebar { position: sticky; top: 24px; align-self: start; }

.article-featured-image {
  margin-bottom: 32px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.article-featured-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius);
}

.article-content {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}
.article-content p { margin-bottom: 1.2em; }
.article-content h2, .article-content h3 {
  margin-top: 1.6em;
  margin-bottom: 0.6em;
  font-weight: 700;
  color: var(--primary);
}
.article-content h2 { font-size: 24px; }
.article-content h3 { font-size: 20px; }
.article-content ul, .article-content ol { margin-bottom: 1.2em; padding-left: 24px; }
.article-content li { margin-bottom: 0.4em; }
.article-content blockquote {
  border-left: 4px solid var(--accent);
  padding: 12px 20px;
  margin: 1.2em 0;
  background: rgba(212,160,48,0.06);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-light);
  font-style: italic;
}
.article-content a { color: var(--primary-mid); text-decoration: underline; }
.article-content a:hover { color: var(--accent); }
.article-content img { border-radius: var(--radius-sm); margin: 1.2em 0; }
.article-content table { width: 100%; border-collapse: collapse; margin: 1.2em 0; }
.article-content th, .article-content td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
.article-content th { background: var(--primary); color: var(--white); font-weight: 600; }

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.article-tags .tag {
  display: inline-block;
  padding: 6px 18px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 13px;
  color: var(--text-light);
  transition: all var(--transition);
}
.article-tags .tag:hover { border-color: var(--accent); color: var(--accent); background: rgba(212,160,48,0.05); }

.article-share {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.article-share span { font-size: 14px; color: var(--text-light); font-weight: 500; }
.article-share a {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--bg);
  color: var(--text-light);
  font-size: 16px;
  transition: all var(--transition);
}
.article-share a:hover { background: var(--primary-mid); color: var(--white); }

/* Post Navigation */
.post-navigation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.post-nav-item {
  padding: 20px 24px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: 1px solid var(--border);
}
.post-nav-item:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: var(--primary-mid); }
.post-nav-item .nav-direction {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.post-nav-item .nav-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}
.post-nav-item.next { text-align: right; }
.post-nav-item.next .nav-direction { justify-content: flex-end; }

/* Sidebar Widgets */
.sidebar-widget {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  padding: 24px;
  margin-bottom: 24px;
}
.sidebar-widget h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}
.sidebar-widget ul { list-style: none; }
.sidebar-widget ul li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.sidebar-widget ul li:last-child { border-bottom: none; }
.sidebar-widget ul li a {
  font-size: 14px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition);
}
.sidebar-widget ul li a:hover { color: var(--accent); padding-left: 4px; }
.sidebar-widget ul li a i { color: var(--primary-mid); font-size: 12px; }

/* Related Posts */
.related-posts {
  padding: 60px 0;
  background: var(--white);
  border-top: 1px solid var(--border);
}
.related-posts .section-title {
  text-align: center;
  margin-bottom: 40px;
}
.related-posts .section-title h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
}
.related-posts .section-title p {
  color: var(--text-light);
  font-size: 15px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  background: var(--bg);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.related-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.related-card .card-img {
  height: 180px;
  overflow: hidden;
}
.related-card .card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
  border-radius: 0;
}
.related-card:hover .card-img img { transform: scale(1.05); }
.related-card .card-body { padding: 20px; }
.related-card .card-body .card-cat {
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}
.related-card .card-body h3 { font-size: 16px; font-weight: 700; line-height: 1.4; margin-bottom: 8px; }
.related-card .card-body h3 a { color: var(--text); }
.related-card .card-body h3 a:hover { color: var(--primary-mid); }
.related-card .card-body .card-date { font-size: 13px; color: var(--text-muted); }

/* CTA */
.cta-section {
  padding: 60px 0;
  background: var(--primary);
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  background-blend-mode: overlay;
  position: relative;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,26,46,0.9) 0%, rgba(26,58,106,0.75) 100%);
}
.cta-section .container { position: relative; z-index: 2; text-align: center; }
.cta-section h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
}
.cta-section p {
  color: rgba(255,255,255,0.7);
  font-size: 16px;
  max-width: 600px;
  margin: 0 auto 28px;
}
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 36px;
  background: var(--accent);
  color: var(--primary);
  font-size: 16px;
  font-weight: 700;
  border-radius: 50px;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
}
.cta-btn:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,160,48,0.3); color: var(--primary); }
.cta-btn i { font-size: 14px; }

/* Footer */
.site-footer {
  background: var(--primary);
  color: rgba(255,255,255,0.7);
  padding: 50px 0 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-brand .brand-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  display: block;
  margin-bottom: 12px;
}
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 300px; }
.site-footer h4 {
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.3px;
}
.site-footer ul { list-style: none; }
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul li a {
  color: rgba(255,255,255,0.55);
  font-size: 14px;
  transition: all var(--transition);
}
.site-footer ul li a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--accent); }

/* Error State */
.error-state {
  text-align: center;
  padding: 80px 20px;
}
.error-state .error-icon {
  font-size: 64px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.error-state h2 { font-size: 28px; color: var(--primary); margin-bottom: 12px; }
.error-state p { color: var(--text-light); margin-bottom: 24px; font-size: 16px; }
.error-state .back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--primary-mid);
  color: var(--white);
  border-radius: 50px;
  font-weight: 600;
  transition: all var(--transition);
}
.error-state .back-btn:hover { background: var(--primary); transform: translateY(-2px); }

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  position: fixed;
  top: 16px; right: 16px;
  z-index: 200;
  background: var(--primary);
  color: var(--white);
  border: none;
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  font-size: 20px;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}
.mobile-toggle:hover { background: var(--primary-light); }
.sidebar-overlay { display: none; }

/* === Responsive === */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: none; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 90;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
  }
  .sidebar-overlay.active { opacity: 1; pointer-events: auto; }
  .mobile-toggle { display: flex; align-items: center; justify-content: center; }
  .main-content { margin-left: 0; }
  .article-banner { padding: 40px 0 36px; }
  .article-banner h1 { font-size: 26px; }
  .article-featured-image img { height: 240px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .post-navigation { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .article-banner h1 { font-size: 22px; }
  .article-banner .post-meta { font-size: 13px; gap: 12px; }
  .article-content { font-size: 15px; }
  .cta-section h2 { font-size: 24px; }
  .related-posts .section-title h2 { font-size: 22px; }
  .sidebar-brand .brand-text { font-size: 16px; }
}

/* Skeleton & Animation */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.article-banner { animation: fadeUp 0.5s ease-out; }
.article-body-wrap { animation: fadeUp 0.6s ease-out 0.1s both; }
.related-posts { animation: fadeUp 0.6s ease-out 0.2s both; }

/* roulang page: category3 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a3a5c;
            --primary-soft: #2a5a8c;
            --primary-light: #e8f0f8;
            --accent: #c9a84c;
            --accent-soft: #f5edd6;
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f1f2f;
            --text-dark: #1a2a3a;
            --text-main: #2d3f4f;
            --text-soft: #5a6f7f;
            --text-light: #8a9faf;
            --text-white: #f0f4f8;
            --border-light: #e2e8f0;
            --border-soft: #d0dce8;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26, 58, 92, 0.06);
            --shadow-md: 0 6px 24px rgba(26, 58, 92, 0.08);
            --shadow-lg: 0 12px 40px rgba(26, 58, 92, 0.12);
            --shadow-xl: 0 24px 60px rgba(26, 58, 92, 0.16);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --sidebar-width: 240px;
            --header-h: 0px;
            --max-width: 1200px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            min-height: 100vh;
        }
        a {
            color: var(--primary-soft);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            outline: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            line-height: 1.3;
            font-weight: 600;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow {
            max-width: 880px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Layout: Sidebar + Main ===== */
        .app-wrapper {
            display: flex;
            width: 100%;
            min-height: 100vh;
        }

        /* ===== Sidebar ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-white);
            border-right: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            box-shadow: 2px 0 16px rgba(26, 58, 92, 0.04);
            transition: transform var(--transition);
        }
        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .sidebar-brand .brand-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 20px;
            flex-shrink: 0;
        }
        .sidebar-brand .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.3px;
            line-height: 1.2;
        }
        .sidebar-nav {
            flex: 1;
            padding: 20px 12px;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav .nav-label {
            font-size: 11px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.8px;
            color: var(--text-light);
            padding: 8px 12px 6px;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-soft);
            transition: var(--transition);
            position: relative;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            color: var(--text-light);
            transition: var(--transition);
        }
        .sidebar-nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .sidebar-nav a:hover i {
            color: var(--primary-soft);
        }
        .sidebar-nav a.active {
            background: var(--primary);
            color: var(--text-white);
            box-shadow: 0 4px 12px rgba(26, 58, 92, 0.2);
        }
        .sidebar-nav a.active i {
            color: var(--accent);
        }
        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: var(--accent);
            border-radius: 0 4px 4px 0;
        }
        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid var(--border-light);
            font-size: 12px;
            color: var(--text-light);
            text-align: center;
        }

        /* ===== Main Content ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== Mobile Toggle ===== */
        .mobile-toggle {
            display: none;
            position: fixed;
            top: 12px;
            left: 12px;
            z-index: 1100;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: var(--bg-white);
            box-shadow: var(--shadow-md);
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .mobile-toggle:hover {
            background: var(--primary-light);
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 31, 47, 0.4);
            z-index: 999;
            backdrop-filter: blur(2px);
        }

        /* ===== Hero / Banner ===== */
        .category-banner {
            position: relative;
            padding: 80px 0 64px;
            background: var(--bg-dark);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .category-banner .banner-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .category-banner .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 31, 47, 0.85) 0%, rgba(26, 58, 92, 0.7) 100%);
            z-index: 1;
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-banner h1 {
            font-size: 42px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .category-banner h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .category-banner p {
            font-size: 18px;
            color: rgba(240, 248, 255, 0.85);
            max-width: 640px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .category-banner .banner-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 8px;
        }
        .category-banner .banner-tags span {
            background: rgba(201, 168, 76, 0.2);
            color: var(--accent);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            border: 1px solid rgba(201, 168, 76, 0.25);
            backdrop-filter: blur(4px);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            padding: 20px 0 8px;
            font-size: 14px;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--text-soft);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            margin: 0 10px;
            color: var(--border-soft);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* ===== Section Common ===== */
        .section {
            padding: 64px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1.2px;
            color: var(--accent);
            background: var(--accent-soft);
            padding: 4px 14px;
            border-radius: 50px;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--text-soft);
            max-width: 600px;
            margin-bottom: 40px;
            line-height: 1.7;
        }
        .section-title.centered,
        .section-subtitle.centered {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }
        .section-title i {
            color: var(--accent);
            margin-right: 10px;
        }

        /* ===== Filter Tabs ===== */
        .filter-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 36px;
            justify-content: center;
        }
        .filter-tabs button {
            padding: 8px 24px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-soft);
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .filter-tabs button:hover {
            border-color: var(--primary-soft);
            color: var(--primary);
            background: var(--primary-light);
        }
        .filter-tabs button.active {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(26, 58, 92, 0.2);
        }
        .filter-tabs button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== News Card Grid ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 28px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--border-soft);
        }
        .news-card .card-img {
            position: relative;
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: var(--primary-light);
        }
        .news-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-card:hover .card-img img {
            transform: scale(1.05);
        }
        .news-card .card-img .tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: var(--text-white);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
            letter-spacing: 0.3px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }
        .news-card .card-img .date-badge {
            position: absolute;
            bottom: 14px;
            right: 14px;
            background: rgba(15, 31, 47, 0.75);
            backdrop-filter: blur(4px);
            color: var(--text-white);
            font-size: 13px;
            padding: 4px 14px;
            border-radius: 50px;
            font-weight: 500;
        }
        .news-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-body .card-cat {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.6px;
            margin-bottom: 6px;
        }
        .news-card .card-body h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.35;
        }
        .news-card .card-body h3 a {
            color: inherit;
        }
        .news-card .card-body h3 a:hover {
            color: var(--primary-soft);
        }
        .news-card .card-body p {
            font-size: 15px;
            color: var(--text-soft);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .news-card .card-body .read-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
            align-self: flex-start;
        }
        .news-card .card-body .read-more i {
            font-size: 12px;
            transition: var(--transition);
        }
        .news-card .card-body .read-more:hover {
            color: var(--accent);
        }
        .news-card .card-body .read-more:hover i {
            transform: translateX(4px);
        }

        /* ===== Featured / Highlight ===== */
        .featured-section {
            background: var(--primary-light);
            padding: 60px 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .featured-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            text-align: center;
        }
        .featured-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .featured-item .fi-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin: 0 auto 16px;
            transition: var(--transition);
        }
        .featured-item:hover .fi-icon {
            background: var(--primary);
            color: var(--text-white);
        }
        .featured-item h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .featured-item p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.6;
        }

        /* ===== CTA / Subscribe ===== */
        .cta-subscribe {
            background: var(--bg-dark);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-subscribe .cta-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }
        .cta-subscribe .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 31, 47, 0.9) 0%, rgba(26, 58, 92, 0.75) 100%);
            z-index: 1;
        }
        .cta-subscribe .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-subscribe h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-subscribe p {
            font-size: 17px;
            color: rgba(240, 248, 255, 0.8);
            max-width: 520px;
            margin: 0 auto 28px;
        }
        .cta-subscribe .subscribe-form {
            display: flex;
            max-width: 500px;
            margin: 0 auto;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-subscribe .subscribe-form input {
            flex: 1;
            min-width: 220px;
            padding: 14px 20px;
            border-radius: 50px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-white);
            font-size: 15px;
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }
        .cta-subscribe .subscribe-form input::placeholder {
            color: rgba(240, 248, 255, 0.5);
        }
        .cta-subscribe .subscribe-form input:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.15);
        }
        .cta-subscribe .subscribe-form .btn-subscribe {
            padding: 14px 36px;
            border-radius: 50px;
            background: var(--accent);
            color: var(--text-dark);
            font-weight: 700;
            font-size: 15px;
            transition: var(--transition);
            border: none;
            box-shadow: 0 4px 16px rgba(201, 168, 76, 0.3);
        }
        .cta-subscribe .subscribe-form .btn-subscribe:hover {
            background: #b8943a;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(201, 168, 76, 0.35);
        }
        .cta-subscribe .subscribe-form .btn-subscribe:focus-visible {
            outline: 2px solid var(--text-white);
            outline-offset: 3px;
        }
        .cta-subscribe .sub-note {
            margin-top: 16px;
            font-size: 13px;
            color: rgba(240, 248, 255, 0.45);
        }

        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            gap: 16px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-item .faq-q {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: var(--transition);
            user-select: none;
        }
        .faq-item .faq-q:hover {
            color: var(--primary);
        }
        .faq-item .faq-q i {
            color: var(--accent);
            font-size: 14px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-soft);
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }
        .faq-item .faq-a p {
            margin-bottom: 8px;
        }
        .faq-item .faq-a p:last-child {
            margin-bottom: 0;
        }

        /* ===== Pagination ===== */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 48px;
            flex-wrap: wrap;
        }
        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-soft);
            border: 1px solid var(--border-light);
            background: var(--bg-white);
            transition: var(--transition);
        }
        .pagination a:hover {
            border-color: var(--primary-soft);
            color: var(--primary);
            background: var(--primary-light);
        }
        .pagination a.active,
        .pagination span.active {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(26, 58, 92, 0.15);
        }
        .pagination .dots {
            border: none;
            background: none;
            color: var(--text-light);
            width: auto;
            padding: 0 4px;
        }

        /* ===== Footer (shared style) ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(240, 248, 255, 0.75);
            padding: 56px 0 0;
            margin-top: auto;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .site-footer .footer-brand .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-white);
            display: block;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(240, 248, 255, 0.6);
            max-width: 300px;
        }
        .site-footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .site-footer ul li {
            margin-bottom: 10px;
        }
        .site-footer ul li a {
            font-size: 14px;
            color: rgba(240, 248, 255, 0.6);
            transition: var(--transition);
        }
        .site-footer ul li a:hover {
            color: var(--accent);
        }
        .site-footer .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(240, 248, 255, 0.35);
        }
        .site-footer .footer-bottom a {
            color: rgba(240, 248, 255, 0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .category-banner h1 {
                font-size: 34px;
            }
            .news-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
        }

        @media (max-width: 768px) {
            :root {
                --sidebar-width: 0px;
            }
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
                box-shadow: 4px 0 40px rgba(0, 0, 0, 0.2);
            }
            .sidebar-overlay.active {
                display: block;
            }
            .mobile-toggle {
                display: flex;
            }
            .main-content {
                margin-left: 0;
            }
            .category-banner {
                padding: 60px 0 48px;
                min-height: 240px;
            }
            .category-banner h1 {
                font-size: 28px;
            }
            .category-banner p {
                font-size: 16px;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .news-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .featured-grid {
                grid-template-columns: 1fr 1fr;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .cta-subscribe h2 {
                font-size: 26px;
            }
            .cta-subscribe .subscribe-form {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-subscribe .subscribe-form input {
                min-width: 0;
            }
            .filter-tabs {
                flex-wrap: nowrap;
                overflow-x: auto;
                padding-bottom: 8px;
                justify-content: flex-start;
                -webkit-overflow-scrolling: touch;
            }
            .filter-tabs button {
                flex-shrink: 0;
            }
            .pagination a,
            .pagination span {
                width: 38px;
                height: 38px;
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-banner h1 {
                font-size: 24px;
            }
            .category-banner .banner-tags span {
                font-size: 12px;
                padding: 4px 14px;
            }
            .section-title {
                font-size: 22px;
            }
            .news-card .card-body {
                padding: 18px 18px 20px;
            }
            .news-card .card-body h3 {
                font-size: 17px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .faq-item .faq-q {
                padding: 16px 18px;
                font-size: 15px;
            }
            .faq-item .faq-a {
                padding: 0 18px 16px;
                font-size: 14px;
            }
            .cta-subscribe {
                padding: 48px 0;
            }
            .cta-subscribe h2 {
                font-size: 22px;
            }
            .site-footer {
                padding: 40px 0 0;
            }
        }

        /* ===== Print ===== */
        @media print {
            .sidebar,
            .mobile-toggle,
            .sidebar-overlay,
            .cta-subscribe {
                display: none !important;
            }
            .main-content {
                margin-left: 0 !important;
            }
            .category-banner {
                padding: 40px 0;
                min-height: auto;
                background: var(--bg-dark) !important;
            }
            .news-card {
                break-inside: avoid;
                box-shadow: none;
                border: 1px solid #ccc;
            }
            .site-footer {
                background: #f5f5f5 !important;
                color: #333 !important;
            }
            .site-footer .footer-brand .brand-text,
            .site-footer h4 {
                color: #222 !important;
            }
            .site-footer ul li a {
                color: #555 !important;
            }
        }