/* roulang page: index */
:root {
  --primary: #0f1923;
  --primary-light: #1a2d3d;
  --primary-dark: #080e14;
  --accent: #d4a84b;
  --accent-light: #e8c56d;
  --accent-dark: #b8922e;
  --bg-light: #f5f6f8;
  --bg-white: #ffffff;
  --bg-dark: #0f1923;
  --text: #1a1a2e;
  --text-light: #6b7280;
  --text-white: #f0f0f0;
  --border: #e5e7eb;
  --border-light: #f0f0f0;
  --radius: 12px;
  --radius-lg: 24px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.07);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.10);
  --shadow-accent: 0 4px 20px rgba(212,168,75,0.3);
  --transition: all 0.3s cubic-bezier(0.25,0.46,0.45,0.94);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --max-width: 1200px;
  --nav-height: 72px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);font-size:16px;line-height:1.7;color:var(--text);background:var(--bg-light);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:inherit;text-decoration:none;transition:var(--transition)}
img{max-width:100%;height:auto;display:block}
button{cursor:pointer;font-family:inherit;border:none;background:none}
input,textarea,select{font-family:inherit;font-size:inherit}
ul,ol{list-style:none}
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}
@media(max-width:768px){.container{padding:0 16px}}

/* Header & Navigation */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--nav-height);background:rgba(15,25,35,0.95);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,0.06);transition:var(--transition)}
.site-header.scrolled{background:rgba(15,25,35,0.98);box-shadow:0 2px 32px rgba(0,0,0,0.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}
.site-logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700;color:var(--text-white);letter-spacing:0.5px}
.site-logo i{color:var(--accent);font-size:26px}
.site-logo span{background:linear-gradient(135deg,var(--accent-light),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.main-nav{display:flex;align-items:center;gap:32px}
.main-nav a{color:rgba(255,255,255,0.75);font-size:15px;font-weight:500;padding:6px 0;position:relative;transition:var(--transition)}
.main-nav a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--accent);transition:var(--transition);border-radius:2px}
.main-nav a:hover{color:var(--text-white)}
.main-nav a:hover::after{width:100%}
.main-nav a.active{color:var(--accent-light)}
.main-nav a.active::after{width:100%;background:var(--accent-light)}
.nav-cta{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:var(--primary-dark)!important;padding:10px 24px!important;border-radius:50px;font-weight:600!important;font-size:14px!important;transition:var(--transition)!important;box-shadow:var(--shadow-accent)}
.nav-cta::after{display:none!important}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(212,168,75,0.4)!important;color:var(--primary-dark)!important}
.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px;background:none;border:none}
.mobile-toggle span{display:block;width:24px;height:2px;background:var(--text-white);border-radius:2px;transition:var(--transition)}
.mobile-toggle.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.mobile-toggle.open span:nth-child(2){opacity:0}
.mobile-toggle.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
@media(max-width:768px){
  .main-nav{position:fixed;top:var(--nav-height);left:0;right:0;background:rgba(15,25,35,0.98);backdrop-filter:blur(16px);flex-direction:column;padding:24px 32px;gap:20px;transform:translateY(-120%);opacity:0;transition:all 0.4s ease;border-bottom:1px solid rgba(255,255,255,0.06);pointer-events:none}
  .main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .main-nav a{font-size:17px;padding:8px 0}
  .nav-cta{width:fit-content;padding:12px 32px!important;margin-top:8px}
  .mobile-toggle{display:flex}
  .header-inner{padding:0 16px}
  .site-logo{font-size:19px}
}

/* Hero Section */
.hero{position:relative;min-height:92vh;display:flex;align-items:center;justify-content:center;background:var(--bg-dark);overflow:hidden;padding-top:var(--nav-height)}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center center/cover no-repeat;opacity:0.5;transform:scale(1.05);animation:heroZoom 20s ease-in-out infinite alternate}
@keyframes heroZoom{0%{transform:scale(1.05)}100%{transform:scale(1.15)}}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,25,35,0.92) 0%,rgba(15,25,35,0.7) 50%,rgba(212,168,75,0.15) 100%)}
.hero-content{position:relative;z-index:2;text-align:center;max-width:800px;padding:40px 24px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(212,168,75,0.15);border:1px solid rgba(212,168,75,0.25);border-radius:50px;padding:8px 20px;font-size:14px;color:var(--accent-light);margin-bottom:24px;backdrop-filter:blur(4px)}
.hero-badge i{font-size:12px}
.hero h1{font-size:clamp(36px,6vw,64px);font-weight:800;color:var(--text-white);line-height:1.12;margin-bottom:20px;letter-spacing:-0.5px}
.hero h1 span{background:linear-gradient(135deg,var(--accent-light),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:clamp(16px,2vw,20px);color:rgba(255,255,255,0.7);line-height:1.8;margin-bottom:36px;max-width:600px;margin-left:auto;margin-right:auto}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-primary{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:var(--primary-dark);padding:16px 36px;border-radius:50px;font-size:16px;font-weight:700;transition:var(--transition);box-shadow:var(--shadow-accent)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 8px 32px rgba(212,168,75,0.45)}
.btn-secondary{display:inline-flex;align-items:center;gap:10px;background:rgba(255,255,255,0.08);color:var(--text-white);padding:16px 36px;border-radius:50px;font-size:16px;font-weight:600;border:1px solid rgba(255,255,255,0.15);transition:var(--transition);backdrop-filter:blur(4px)}
.btn-secondary:hover{background:rgba(255,255,255,0.15);border-color:rgba(255,255,255,0.25);transform:translateY(-3px)}
.hero-stats{display:flex;gap:48px;justify-content:center;margin-top:48px;flex-wrap:wrap}
.hero-stat{text-align:center}
.hero-stat .num{font-size:32px;font-weight:800;color:var(--accent-light);display:block}
.hero-stat .label{font-size:14px;color:rgba(255,255,255,0.5);margin-top:4px}
@media(max-width:768px){
  .hero{min-height:80vh}
  .hero-stats{gap:32px}
  .hero-stat .num{font-size:26px}
  .btn-primary,.btn-secondary{padding:14px 28px;font-size:15px}
}

/* Section Common */
.section{padding:96px 0}
.section-dark{background:var(--bg-dark);color:var(--text-white)}
.section-light{background:var(--bg-white)}
.section-muted{background:var(--bg-light)}
.section-header{text-align:center;max-width:700px;margin:0 auto 56px}
.section-header h2{font-size:clamp(28px,3.5vw,40px);font-weight:700;line-height:1.2;margin-bottom:16px;letter-spacing:-0.3px}
.section-header h2 span{color:var(--accent)}
.section-dark .section-header h2{color:var(--text-white)}
.section-header p{font-size:17px;color:var(--text-light);line-height:1.7}
.section-dark .section-header p{color:rgba(255,255,255,0.6)}
.section-header .subtitle{display:inline-block;font-size:13px;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:2px;margin-bottom:12px}
@media(max-width:768px){.section{padding:64px 0}.section-header{margin-bottom:40px}}

/* Features */
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:var(--bg-white);border-radius:var(--radius);padding:36px 28px;text-align:center;border:1px solid var(--border);transition:var(--transition);box-shadow:var(--shadow)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--accent)}
.feature-card .icon{width:64px;height:64px;border-radius:16px;background:linear-gradient(135deg,rgba(212,168,75,0.12),rgba(212,168,75,0.05));display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:28px;color:var(--accent);transition:var(--transition)}
.feature-card:hover .icon{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff}
.feature-card h3{font-size:18px;font-weight:700;margin-bottom:10px;color:var(--text)}
.feature-card p{font-size:14px;color:var(--text-light);line-height:1.7}
.section-dark .feature-card{background:rgba(255,255,255,0.04);border-color:rgba(255,255,255,0.08)}
.section-dark .feature-card h3{color:var(--text-white)}
.section-dark .feature-card p{color:rgba(255,255,255,0.6)}
@media(max-width:1024px){.features-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.features-grid{grid-template-columns:1fr}}

/* Categories */
.categories-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.category-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--bg-dark);min-height:320px;display:flex;align-items:flex-end;cursor:pointer;transition:var(--transition);box-shadow:var(--shadow)}
.category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.category-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.category-card:hover img{transform:scale(1.08)}
.category-card .overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(15,25,35,0.92) 0%,rgba(15,25,35,0.3) 50%,rgba(15,25,35,0.1) 100%)}
.category-card .info{position:relative;z-index:2;padding:32px 28px;width:100%}
.category-card .info h3{font-size:20px;font-weight:700;color:var(--text-white);margin-bottom:6px}
.category-card .info p{font-size:14px;color:rgba(255,255,255,0.7);margin-bottom:12px}
.category-card .tag{display:inline-block;font-size:12px;font-weight:600;color:var(--accent);background:rgba(212,168,75,0.15);padding:4px 14px;border-radius:50px;border:1px solid rgba(212,168,75,0.2)}
@media(max-width:768px){.categories-grid{grid-template-columns:1fr;gap:20px}.category-card{min-height:260px}}

/* Latest News / CMS List */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.news-card{background:var(--bg-white);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:var(--transition);box-shadow:var(--shadow);display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(212,168,75,0.3)}
.news-card .thumb{position:relative;height:200px;overflow:hidden;background:var(--primary-light)}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.news-card:hover .thumb img{transform:scale(1.06)}
.news-card .thumb .cat-tag{position:absolute;top:12px;left:12px;font-size:12px;font-weight:600;color:#fff;background:var(--accent);padding:4px 14px;border-radius:50px;z-index:2}
.news-card .body{padding:24px;flex:1;display:flex;flex-direction:column}
.news-card .body .meta{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--text-light);margin-bottom:10px}
.news-card .body .meta i{margin-right:4px}
.news-card .body h3{font-size:17px;font-weight:700;line-height:1.4;margin-bottom:10px;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .body p{font-size:14px;color:var(--text-light);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.news-card .body .read-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--accent);margin-top:16px;transition:var(--transition)}
.news-card .body .read-more:hover{gap:10px;color:var(--accent-dark)}
.section-dark .news-card{background:rgba(255,255,255,0.04);border-color:rgba(255,255,255,0.08)}
.section-dark .news-card .body h3{color:var(--text-white)}
.empty-news{grid-column:1/-1;text-align:center;padding:48px;color:var(--text-light);font-size:16px}
.empty-news i{font-size:40px;display:block;margin-bottom:16px;color:var(--border)}
@media(max-width:1024px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.news-grid{grid-template-columns:1fr}}

/* Stats / Data */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{text-align:center;padding:36px 20px;background:rgba(255,255,255,0.03);border-radius:var(--radius);border:1px solid rgba(255,255,255,0.06);transition:var(--transition)}
.stat-card:hover{background:rgba(255,255,255,0.06);border-color:rgba(212,168,75,0.2)}
.stat-card .num{font-size:40px;font-weight:800;color:var(--accent-light);display:block;line-height:1.1}
.stat-card .label{font-size:15px;color:rgba(255,255,255,0.6);margin-top:8px}
@media(max-width:768px){.stats-grid{grid-template-columns:repeat(2,1fr);gap:16px}.stat-card .num{font-size:32px}}
@media(max-width:520px){.stats-grid{grid-template-columns:repeat(2,1fr)}}

/* Process / Steps */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.process-grid::before{content:'';position:absolute;top:48px;left:12.5%;right:12.5%;height:2px;background:linear-gradient(to right,var(--accent),rgba(212,168,75,0.2));z-index:0}
.process-step{text-align:center;position:relative;z-index:1}
.process-step .step-num{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:var(--primary-dark);font-size:20px;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;box-shadow:0 4px 16px rgba(212,168,75,0.3)}
.process-step h4{font-size:17px;font-weight:700;color:var(--text-white);margin-bottom:8px}
.process-step p{font-size:14px;color:rgba(255,255,255,0.6);line-height:1.6}
@media(max-width:768px){.process-grid{grid-template-columns:repeat(2,1fr);gap:32px}.process-grid::before{display:none}}
@media(max-width:520px){.process-grid{grid-template-columns:1fr}}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:rgba(212,168,75,0.2)}
.faq-item .faq-q{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;cursor:pointer;font-size:16px;font-weight:600;color:var(--text);transition:var(--transition);user-select:none}
.faq-item .faq-q i{color:var(--accent);font-size:14px;transition:var(--transition)}
.faq-item.active .faq-q i{transform:rotate(180deg)}
.faq-item .faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:all 0.35s ease;color:var(--text-light);font-size:15px;line-height:1.8}
.faq-item.active .faq-a{padding:0 24px 20px;max-height:300px}
.section-dark .faq-item{background:rgba(255,255,255,0.04);border-color:rgba(255,255,255,0.08)}
.section-dark .faq-item .faq-q{color:var(--text-white)}
.section-dark .faq-item .faq-a{color:rgba(255,255,255,0.6)}

/* CTA */
.cta-section{background:linear-gradient(135deg,var(--primary-dark),var(--primary-light));padding:80px 0;text-align:center;position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center center/cover no-repeat;opacity:0.1;pointer-events:none}
.cta-content{position:relative;z-index:2;max-width:650px;margin:0 auto;padding:0 24px}
.cta-content h2{font-size:clamp(28px,3.5vw,40px);font-weight:700;color:var(--text-white);margin-bottom:16px}
.cta-content p{font-size:17px;color:rgba(255,255,255,0.7);margin-bottom:32px;line-height:1.7}
.cta-content .btn-primary{font-size:17px;padding:18px 44px}

/* Footer */
.site-footer{background:var(--primary-dark);padding:64px 0 32px;border-top:1px solid rgba(255,255,255,0.05)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .site-logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:rgba(255,255,255,0.5);line-height:1.7;max-width:300px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text-white);margin-bottom:20px;letter-spacing:0.5px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,0.5);transition:var(--transition)}
.footer-col ul li a:hover{color:var(--accent-light);padding-left:4px}
.footer-social{display:flex;gap:12px;margin-top:20px}
.footer-social a{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,0.06);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,0.5);transition:var(--transition);font-size:16px}
.footer-social a:hover{background:var(--accent);color:var(--primary-dark)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.06);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,0.35)}
.footer-bottom .links{display:flex;gap:24px;flex-wrap:wrap}
.footer-bottom .links a{font-size:13px;color:rgba(255,255,255,0.35);transition:var(--transition)}
.footer-bottom .links a:hover{color:var(--accent-light)}
@media(max-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}.footer-bottom{flex-direction:column;text-align:center}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}

/* Back to Top */
.back-top{position:fixed;bottom:32px;right:32px;width:48px;height:48px;border-radius:50%;background:var(--accent);color:var(--primary-dark);display:flex;align-items:center;justify-content:center;font-size:18px;box-shadow:var(--shadow-accent);z-index:999;opacity:0;transform:translateY(20px);pointer-events:none;transition:var(--transition)}
.back-top.show{opacity:1;transform:translateY(0);pointer-events:auto}
.back-top:hover{transform:translateY(-4px);box-shadow:0 8px 32px rgba(212,168,75,0.45)}

/* Breadcrumb */
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:16px 0;font-size:14px;color:var(--text-light)}
.breadcrumb a{color:var(--text-light);transition:var(--transition)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--border)}
.breadcrumb .current{color:var(--text);font-weight:500}

/* Article Page */
.article-hero{background:var(--bg-dark);padding:120px 0 60px;position:relative;overflow:hidden}
.article-hero::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') center center/cover no-repeat;opacity:0.15}
.article-hero .container{position:relative;z-index:2}
.article-hero .breadcrumb a,.article-hero .breadcrumb .sep{color:rgba(255,255,255,0.5)}
.article-hero .breadcrumb .current{color:var(--accent-light)}
.article-hero h1{font-size:clamp(28px,3.5vw,44px);font-weight:800;color:var(--text-white);line-height:1.2;margin:16px 0 16px;max-width:800px}
.article-meta{display:flex;align-items:center;gap:24px;flex-wrap:wrap;color:rgba(255,255,255,0.5);font-size:14px}
.article-meta i{margin-right:4px}
.article-meta .cat{color:var(--accent);font-weight:600}
.article-body{padding:64px 0 48px;background:var(--bg-white)}
.article-body .content{max-width:800px;margin:0 auto;font-size:16px;line-height:2;color:var(--text)}
.article-body .content p{margin-bottom:20px}
.article-body .content img{border-radius:var(--radius);margin:24px 0;width:100%}
.article-body .content h2,.article-body .content h3{margin-top:32px;margin-bottom:16px;font-weight:700;color:var(--text)}
.article-body .content h2{font-size:24px}
.article-body .content h3{font-size:20px}
.article-body .content ul,.article-body .content ol{padding-left:24px;margin-bottom:20px}
.article-body .content li{margin-bottom:8px}
.article-body .content a{color:var(--accent);font-weight:500;border-bottom:1px solid transparent}
.article-body .content a:hover{border-bottom-color:var(--accent)}
.not-found{text-align:center;padding:80px 24px}
.not-found i{font-size:64px;color:var(--border);margin-bottom:24px;display:block}
.not-found h2{font-size:28px;font-weight:700;margin-bottom:12px}
.not-found p{color:var(--text-light);margin-bottom:24px}
.not-found .btn-primary{display:inline-flex}

/* Category Banner */
.cat-banner{background:var(--bg-dark);padding:120px 0 60px;position:relative;overflow:hidden}
.cat-banner::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center center/cover no-repeat;opacity:0.12}
.cat-banner .container{position:relative;z-index:2;text-align:center}
.cat-banner h1{font-size:clamp(30px,4vw,48px);font-weight:800;color:var(--text-white);margin-bottom:12px}
.cat-banner p{font-size:17px;color:rgba(255,255,255,0.6);max-width:600px;margin:0 auto}
.cat-banner .cat-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(212,168,75,0.15);border:1px solid rgba(212,168,75,0.2);border-radius:50px;padding:6px 18px;font-size:13px;color:var(--accent-light);margin-bottom:16px}

/* Category Content */
.cat-content{padding:64px 0}
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.cat-card{background:var(--bg-white);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:var(--transition);box-shadow:var(--shadow)}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(212,168,75,0.2)}
.cat-card .thumb{height:180px;overflow:hidden}
.cat-card .thumb img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.cat-card:hover .thumb img{transform:scale(1.06)}
.cat-card .body{padding:20px 24px 24px}
.cat-card .body .meta{font-size:13px;color:var(--text-light);margin-bottom:8px}
.cat-card .body h3{font-size:17px;font-weight:700;margin-bottom:8px;color:var(--text);line-height:1.4}
.cat-card .body p{font-size:14px;color:var(--text-light);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cat-card .body .read-btn{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--accent);margin-top:12px;transition:var(--transition)}
.cat-card .body .read-btn:hover{gap:10px}
@media(max-width:1024px){.cat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.cat-grid{grid-template-columns:1fr}}

/* Animations */
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.animate-fade-up{animation:fadeUp 0.7s ease forwards}
.delay-1{animation-delay:0.1s}
.delay-2{animation-delay:0.2s}
.delay-3{animation-delay:0.3s}
.delay-4{animation-delay:0.4s}

/* roulang page: category1 */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #dbeafe;
            --primary-gradient: linear-gradient(135deg, #2563eb, #1e40af);
            --secondary: #f59e0b;
            --secondary-light: #fef3c7;
            --accent: #10b981;
            --accent-light: #d1fae5;
            --bg: #ffffff;
            --bg-alt: #f8fafc;
            --bg-dark: #0f172a;
            --text: #1e293b;
            --text-light: #64748b;
            --text-white: #ffffff;
            --border: #e2e8f0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.10);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font);
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a { color: inherit; text-decoration: none; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }

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

        .container-narrow {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.3px;
        }
        .site-logo i { font-size: 1.6rem; color: var(--primary); }
        .site-logo span { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .main-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .main-nav a.nav-cta {
            background: var(--primary-gradient);
            color: #fff;
            padding: 10px 24px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 14px rgba(37,99,235,0.25);
        }
        .main-nav a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(37,99,235,0.35);
            background: linear-gradient(135deg, #1d4ed8, #1e40af);
        }

        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .nav-toggle:hover { background: var(--bg-alt); }

        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .main-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                box-shadow: 0 20px 40px rgba(0,0,0,0.06);
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .main-nav a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .main-nav a.nav-cta {
                justify-content: center;
                margin-top: 8px;
            }
            .main-nav a.active::after { display: none; }
        }

        /* ===== Page Hero / Banner ===== */
        .page-banner {
            margin-top: var(--nav-height);
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
            position: relative;
            overflow: hidden;
            min-height: 300px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 80px 24px 60px;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-banner h1 i { color: var(--secondary); margin-right: 12px; }
        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.75);
            max-width: 560px;
            margin: 0 auto 24px;
        }
        .page-banner .banner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .page-banner .banner-tags span {
            background: rgba(255,255,255,0.10);
            backdrop-filter: blur(4px);
            padding: 6px 18px;
            border-radius: 100px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.85);
            border: 1px solid rgba(255,255,255,0.08);
        }

        @media (max-width: 768px) {
            .page-banner { min-height: 220px; padding: 60px 20px 40px; }
            .page-banner h1 { font-size: 1.8rem; }
            .page-banner p { font-size: 1rem; }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            padding: 16px 0;
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb .container {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .breadcrumb a { color: var(--primary); }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb i { font-size: 0.75rem; color: var(--text-light); }

        /* ===== Sections ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt { background: var(--bg-alt); }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto 48px;
            font-size: 1.05rem;
        }
        .section-dark .section-subtitle { color: rgba(255,255,255,0.6); }

        @media (max-width: 768px) {
            .section { padding: 48px 0; }
            .section-title { font-size: 1.5rem; }
            .section-subtitle { margin-bottom: 32px; font-size: 0.95rem; }
        }

        /* ===== Category Filter ===== */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 40px;
        }
        .filter-bar button {
            padding: 8px 22px;
            border-radius: 100px;
            border: 1px solid var(--border);
            background: var(--bg);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            cursor: pointer;
            transition: var(--transition);
        }
        .filter-bar button:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .filter-bar button.active {
            background: var(--primary-gradient);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(37,99,235,0.25);
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .card {
            background: var(--bg);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .card .card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            background: var(--bg-alt);
        }
        .card .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card .card-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 100px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card h3 a { color: var(--text); }
        .card h3 a:hover { color: var(--primary); }
        .card p {
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.6;
            flex: 1;
        }
        .card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 14px;
            font-size: 0.82rem;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }
        .card .card-meta i { margin-right: 4px; }

        @media (max-width: 600px) {
            .card-grid { grid-template-columns: 1fr; }
        }

        /* ===== Featured / Large Card ===== */
        .featured-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            background: var(--bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            margin-bottom: 32px;
        }
        .featured-card .img-wrap {
            aspect-ratio: 4/3;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .featured-card .img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .featured-card:hover .img-wrap img { transform: scale(1.03); }
        .featured-card .content {
            padding: 32px 32px 32px 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-card .content .tag {
            background: var(--secondary-light);
            color: #b45309;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 14px;
            border-radius: 100px;
            align-self: flex-start;
            margin-bottom: 12px;
        }
        .featured-card .content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .featured-card .content p {
            color: var(--text-light);
            font-size: 1rem;
            margin-bottom: 20px;
        }
        .featured-card .content .btn {
            align-self: flex-start;
        }

        @media (max-width: 768px) {
            .featured-card { grid-template-columns: 1fr; gap: 0; }
            .featured-card .content { padding: 24px; }
            .featured-card .content h2 { font-size: 1.3rem; }
        }

        /* ===== List ===== */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .article-list-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 18px 22px;
            background: var(--bg);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .article-list-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }
        .article-list-item .rank {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            min-width: 40px;
            text-align: center;
        }
        .article-list-item .info { flex: 1; }
        .article-list-item .info h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .article-list-item .info h4 a { color: var(--text); }
        .article-list-item .info h4 a:hover { color: var(--primary); }
        .article-list-item .info p {
            font-size: 0.88rem;
            color: var(--text-light);
        }
        .article-list-item .meta {
            font-size: 0.82rem;
            color: var(--text-light);
            white-space: nowrap;
        }

        @media (max-width: 600px) {
            .article-list-item { flex-wrap: wrap; gap: 10px; }
            .article-list-item .rank { min-width: 30px; font-size: 1.1rem; }
            .article-list-item .meta { width: 100%; text-align: left; }
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.10);
            border-radius: var(--radius);
            padding: 32px 20px;
            backdrop-filter: blur(4px);
        }
        .stat-item .num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
        }
        .stat-item .label {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.7);
            margin-top: 6px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary); }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text);
            gap: 12px;
        }
        .faq-question i { transition: var(--transition); color: var(--primary); font-size: 0.9rem; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--primary-gradient);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-block h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-block p {
            font-size: 1.05rem;
            opacity: 0.85;
            max-width: 520px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 1;
        }
        .cta-block .btn-white {
            background: #fff;
            color: var(--primary);
            padding: 14px 40px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 1rem;
            display: inline-block;
            transition: var(--transition);
            position: relative;
            z-index: 1;
        }
        .cta-block .btn-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0,0,0,0.20);
        }

        @media (max-width: 768px) {
            .cta-block { padding: 36px 24px; }
            .cta-block h2 { font-size: 1.4rem; }
            .cta-block p { font-size: 0.95rem; }
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-primary {
            background: var(--primary-gradient);
            color: #fff;
            box-shadow: 0 4px 14px rgba(37,99,235,0.25);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(37,99,235,0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
            padding: 56px 0 0;
        }
        .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 .site-logo { color: #fff; margin-bottom: 16px; display: inline-flex; }
        .footer-brand .site-logo i { color: var(--secondary); }
        .footer-brand .site-logo span { -webkit-text-fill-color: #fff; background: none; }
        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.55);
            margin-bottom: 20px;
            max-width: 360px;
        }
        .footer-social { display: flex; gap: 14px; }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.6);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.5);
            transition: var(--transition);
        }
        .footer-col ul li a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
        }
        .footer-bottom .links { display: flex; gap: 20px; }
        .footer-bottom .links a { color: rgba(255,255,255,0.35); }
        .footer-bottom .links a:hover { color: var(--secondary); }

        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .footer-brand { grid-column: 1 / -1; }
            .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; }
        }

        /* ===== Misc ===== */
        .text-center { text-align: center; }
        .mt-8 { margin-top: 8px; }
        .mt-12 { margin-top: 12px; }
        .mt-24 { margin-top: 24px; }
        .mb-24 { margin-bottom: 24px; }
        .gap-16 { gap: 16px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .tag-sm {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.72rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 100px;
        }
        .tag-hot {
            background: #fef2f2;
            color: #dc2626;
        }
        .tag-new {
            background: var(--accent-light);
            color: #059669;
        }

        /* ===== Responsive extras ===== */
        @media (max-width: 1024px) {
            .container { padding: 0 20px; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--bg-alt); }
        ::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--text-light); }

        /* ===== Structured data (hidden) ===== */
        .hidden-ld { display: none; }

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
  --primary: #0a0a2a;
  --primary-light: #16163a;
  --primary-dark: #05051a;
  --accent: #e94560;
  --accent-hover: #ff6b6b;
  --gold: #f0a500;
  --gold-light: #ffc34d;
  --bg: #f4f6fc;
  --bg-card: #ffffff;
  --bg-dark: #0a0a2a;
  --text: #1a1a2e;
  --text-light: #555;
  --text-muted: #888;
  --border: #e8e8f0;
  --shadow: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --container: 1200px;
  --nav-height: 72px;
}
/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul { list-style: none; }
button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
button { cursor: pointer; background: none; }
/* ===== Container ===== */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 640px) {
  .container { padding: 0 16px; }
}
/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text); }
h1 { font-size: clamp(28px,4vw,48px); }
h2 { font-size: clamp(22px,3vw,36px); }
h3 { font-size: clamp(18px,2.2vw,26px); }
h4 { font-size: clamp(16px,1.6vw,20px); }
p { margin-bottom: 1em; color: var(--text-light); }
/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--primary);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: var(--transition);
}
.site-header.scrolled {
  background: rgba(10,10,42,0.96);
  backdrop-filter: blur(16px);
  border-bottom-color: rgba(255,255,255,0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.3px;
}
.site-logo i { color: var(--accent); font-size: 26px; }
.site-logo span { background: linear-gradient(135deg,#fff 60%,var(--gold-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.main-nav a {
  padding: 8px 18px;
  border-radius: 8px;
  color: rgba(255,255,255,0.7);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}
.main-nav a:hover { color: #fff; background: rgba(255,255,255,0.08); }
.main-nav a.active { color: #fff; background: rgba(255,255,255,0.12); }
.main-nav a.active::after { display: none; }
.main-nav .nav-cta {
  background: var(--accent);
  color: #fff;
  padding: 10px 24px;
  border-radius: 10px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 6px;
}
.main-nav .nav-cta:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(233,69,96,0.35); }
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: #fff;
  border-radius: 3px;
  transition: var(--transition);
}
@media (max-width: 768px) {
  .menu-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    background: var(--primary);
    flex-direction: column;
    padding: 20px 24px 30px;
    gap: 4px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  }
  .main-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .main-nav a { width: 100%; padding: 12px 16px; font-size: 16px; }
  .main-nav .nav-cta { margin-left: 0; margin-top: 8px; justify-content: center; }
}
/* ===== Hero / Banner ===== */
.page-banner {
  padding-top: var(--nav-height);
  min-height: 380px;
  display: flex;
  align-items: center;
  position: relative;
  background: var(--primary-dark);
  overflow: hidden;
}
.page-banner .bg-img {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.3;
  transition: transform 0.6s ease;
}
.page-banner .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,10,42,0.85) 40%, rgba(10,10,42,0.5) 80%);
}
.page-banner .container { position: relative; z-index: 2; width: 100%; }
.page-banner .banner-content {
  max-width: 800px;
}
.page-banner .category-badge {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 5px 16px;
  border-radius: 20px;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.page-banner h1 {
  color: #fff;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 12px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.page-banner .meta {
  display: flex;
  align-items: center;
  gap: 20px;
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  flex-wrap: wrap;
}
.page-banner .meta i { margin-right: 6px; color: var(--gold); }
.page-banner .meta span { display: flex; align-items: center; }
@media (max-width: 640px) {
  .page-banner { min-height: 280px; }
  .page-banner .meta { gap: 12px; font-size: 13px; }
}
/* ===== Article Content ===== */
.article-section {
  padding: 60px 0;
  background: var(--bg);
}
.article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}
.article-main {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px;
}
.article-main .featured-img {
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 32px;
}
.article-main .featured-img img { width: 100%; height: auto; border-radius: var(--radius-sm); }
.article-body {
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-light);
}
.article-body h2, .article-body h3 { margin-top: 32px; margin-bottom: 16px; color: var(--text); }
.article-body p { margin-bottom: 1.2em; }
.article-body ul, .article-body ol { margin-bottom: 1.2em; padding-left: 24px; }
.article-body li { margin-bottom: 6px; }
.article-body a { color: var(--accent); border-bottom: 1px solid transparent; }
.article-body a:hover { border-bottom-color: var(--accent); }
.article-body img { border-radius: var(--radius-sm); margin: 24px 0; }
.article-body blockquote {
  border-left: 4px solid var(--accent);
  padding: 16px 24px;
  background: rgba(233,69,96,0.06);
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  margin: 24px 0;
  color: var(--text-light);
  font-style: italic;
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.article-tags .tag {
  background: var(--bg);
  color: var(--text-light);
  font-size: 13px;
  padding: 5px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.article-tags .tag:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.sidebar-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}
.sidebar-card h3 {
  font-size: 18px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.sidebar-card h3 i { color: var(--accent); }
.sidebar-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.sidebar-list li:last-child { border-bottom: none; }
.sidebar-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.4;
  gap: 12px;
}
.sidebar-list a:hover { color: var(--accent); }
.sidebar-list a .arrow { color: var(--accent); font-size: 12px; flex-shrink: 0; }
.error-block {
  text-align: center;
  padding: 80px 20px;
}
.error-block i { font-size: 56px; color: var(--accent); margin-bottom: 20px; opacity: 0.7; }
.error-block h2 { margin-bottom: 12px; }
.error-block p { color: var(--text-muted); margin-bottom: 24px; }
.error-block .btn { display: inline-block; }
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
}
@media (max-width: 640px) {
  .article-main { padding: 24px 16px; }
  .article-sidebar { grid-template-columns: 1fr; }
}
/* ===== Related Section ===== */
.related-section {
  padding: 60px 0;
  background: var(--bg-card);
}
.related-section .section-title {
  text-align: center;
  margin-bottom: 40px;
}
.related-section .section-title h2 { margin-bottom: 8px; }
.related-section .section-title p { color: var(--text-muted); font-size: 16px; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.related-card {
  background: var(--bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.related-card .card-img {
  height: 180px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.related-card .card-img .cat-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 14px;
}
.related-card .card-body { padding: 18px 20px 22px; }
.related-card .card-body h4 { font-size: 16px; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-body p { font-size: 14px; color: var(--text-muted); margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-body .meta { font-size: 13px; color: var(--text-muted); display: flex; align-items: center; gap: 12px; }
.related-card .card-body .meta i { margin-right: 4px; font-size: 12px; }
/* ===== CTA Section ===== */
.cta-section {
  padding: 80px 0;
  background: var(--primary);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(233,69,96,0.15) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 50%, rgba(240,165,0,0.1) 0%, transparent 50%);
}
.cta-section .container { position: relative; z-index: 2; text-align: center; }
.cta-section h2 { color: #fff; margin-bottom: 12px; }
.cta-section p { color: rgba(255,255,255,0.7); font-size: 17px; max-width: 600px; margin: 0 auto 32px; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  transition: var(--transition);
  border: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(233,69,96,0.35); }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.25); }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.08); transform: translateY(-2px); }
.btn-gold { background: var(--gold); color: var(--primary); }
.btn-gold:hover { background: var(--gold-light); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(240,165,0,0.35); }
/* ===== FAQ Section ===== */
.faq-section {
  padding: 60px 0;
  background: var(--bg);
}
.faq-section .section-title { text-align: center; margin-bottom: 40px; }
.faq-section .section-title h2 { margin-bottom: 8px; }
.faq-section .section-title p { color: var(--text-muted); font-size: 16px; }
.faq-grid {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-hover); }
.faq-question {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
  gap: 16px;
  user-select: none;
}
.faq-question i { color: var(--accent); font-size: 14px; transition: var(--transition); flex-shrink: 0; }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: var(--transition);
  padding: 0 24px;
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.7;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px;
}
/* ===== Footer ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-brand .site-logo { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.55); margin-bottom: 20px; max-width: 360px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  font-size: 18px;
  transition: var(--transition);
}
.footer-social a:hover { background: var(--accent); color: #fff; transform: translateY(-3px); }
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  color: rgba(255,255,255,0.55);
  font-size: 14px;
  transition: var(--transition);
}
.footer-col ul a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom .links { display: flex; gap: 20px; }
.footer-bottom .links a { color: rgba(255,255,255,0.4); transition: var(--transition); }
.footer-bottom .links a:hover { color: var(--accent); }
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}
/* ===== Utility ===== */
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-24 { margin-bottom: 24px; }
.gap-12 { gap: 12px; }
.flex-center { display: flex; align-items: center; justify-content: center; }
@media (max-width: 640px) {
  .article-main { padding: 20px 12px; }
  .related-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 420px) {
  .related-grid { grid-template-columns: 1fr; }
  .cta-buttons .btn { width: 100%; justify-content: center; }
}