/* roulang page: index */
:root {
  --primary: #4f46e5;
  --primary-rgb: 79, 70, 229;
  --primary-dark: #3730a3;
  --primary-light: #eef2ff;
  --accent: #f59e0b;
  --accent-rgb: 245, 158, 11;
  --bg: #f5f6fa;
  --surface: #ffffff;
  --surface-light: #f8fafc;
  --text: #0f172a;
  --text-weak: #475569;
  --text-faint: #94a3b8;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 28px;
  --shadow-sm: 0 2px 8px rgba(15,23,42,.06);
  --shadow: 0 8px 30px rgba(15,23,42,.08);
  --shadow-lg: 0 24px 64px rgba(15,23,42,.14);
  --container: 1240px;
  --space: 72px;
  --space-lg: 96px;
  --ease: all .28s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:var(--ease)}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
input,textarea{font-family:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--space) 0}
.section-head{max-width:720px;margin:0 auto 48px;text-align:center}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--primary-light);color:var(--primary);font-size:13px;font-weight:600;padding:6px 18px;border-radius:999px;margin-bottom:16px;letter-spacing:1px}
.section-head h2{font-size:34px;line-height:1.3;font-weight:800;color:var(--text);margin-bottom:12px;letter-spacing:-.5px}
.section-head p{color:var(--text-weak);font-size:16px}

/* Header */
.header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.82);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--border-light);transition:var(--ease)}
.header.scrolled{box-shadow:var(--shadow-sm)}
.header-inner{display:flex;align-items:center;gap:16px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:var(--text);flex-shrink:0;letter-spacing:-.5px}
.logo .logo-icon{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--primary),#7c3aed);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;box-shadow:0 4px 14px rgba(var(--primary-rgb),.32)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{display:inline-flex;align-items:center;padding:8px 16px;border-radius:999px;font-size:14px;font-weight:500;color:var(--text-weak);white-space:nowrap}
.nav-links a:hover{background:var(--primary-light);color:var(--primary)}
.nav-links a.active{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(var(--primary-rgb),.3)}
.nav-search{flex:1;max-width:360px;margin-left:auto;display:flex;align-items:center;position:relative}
.nav-search input{width:100%;height:42px;border:1px solid var(--border);border-radius:999px;padding:0 44px 0 42px;font-size:14px;background:var(--surface-light);outline:none;transition:var(--ease)}
.nav-search input:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(var(--primary-rgb),.12)}
.nav-search .search-icon{position:absolute;left:16px;color:var(--text-faint);font-size:14px;pointer-events:none}
.nav-search button{position:absolute;right:6px;width:32px;height:32px;border:none;border-radius:50%;background:var(--primary);color:#fff;font-size:13px;display:flex;align-items:center;justify-content:center;transition:var(--ease)}
.nav-search button:hover{background:var(--primary-dark);transform:scale(1.05)}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--border);background:#fff;border-radius:12px;font-size:18px;color:var(--text);align-items:center;justify-content:center}

/* Hero */
.hero{position:relative;padding:120px 0 110px;background:linear-gradient(135deg,rgba(15,23,42,.88),rgba(79,70,229,.78)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;color:#fff;overflow:hidden}
.hero::after{content:'';position:absolute;bottom:-120px;right:-80px;width:400px;height:400px;background:radial-gradient(circle,rgba(var(--accent-rgb),.3),transparent 65%);border-radius:50%}
.hero-inner{position:relative;z-index:2;max-width:820px}
.hero-badge{display:inline-flex;align-items:center;gap:10px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);padding:8px 20px;border-radius:999px;font-size:13px;font-weight:500;margin-bottom:24px;backdrop-filter:blur(6px)}
.hero-badge i{color:var(--accent)}
.hero h1{font-size:52px;font-weight:800;line-height:1.18;letter-spacing:-1.5px;margin-bottom:20px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#c7d2fe,#a5b4fc);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-desc{font-size:18px;color:rgba(255,255,255,.85);max-width:640px;margin-bottom:34px;line-height:1.8}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:44px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border-radius:999px;font-size:15px;font-weight:600;border:none;transition:var(--ease);outline:none}
.btn:focus-visible{outline:3px solid rgba(var(--accent-rgb),.5);outline-offset:2px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 20px rgba(var(--primary-rgb),.35)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 10px 28px rgba(var(--primary-rgb),.4)}
.btn-light{background:#fff;color:var(--text);box-shadow:0 4px 14px rgba(0,0,0,.08)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.14)}
.hero-stats{display:flex;gap:44px;flex-wrap:wrap;padding-top:28px;border-top:1px solid rgba(255,255,255,.18)}
.stat-item{display:flex;flex-direction:column;gap:2px}
.stat-num{font-size:32px;font-weight:800;line-height:1.2}
.stat-num span{color:var(--accent)}
.stat-label{font-size:13px;color:rgba(255,255,255,.7)}

/* Intro */
.intro{background:var(--surface)}
.intro-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:64px;align-items:center}
.intro-content h2{font-size:32px;font-weight:800;line-height:1.3;margin-bottom:18px;letter-spacing:-.5px}
.intro-content p{color:var(--text-weak);margin-bottom:24px;font-size:15px}
.intro-list{display:grid;gap:14px;margin-top:28px}
.intro-list li{display:flex;gap:14px;align-items:flex-start;padding:16px 18px;background:var(--bg);border:1px solid var(--border-light);border-radius:var(--radius-sm);transition:var(--ease)}
.intro-list li:hover{border-color:var(--primary);box-shadow:var(--shadow-sm);transform:translateX(4px)}
.intro-list li i{color:var(--primary);font-size:18px;margin-top:2px;flex-shrink:0;width:32px;height:32px;background:var(--primary-light);border-radius:8px;display:flex;align-items:center;justify-content:center}
.intro-list li strong{display:block;font-size:15px;margin-bottom:2px}
.intro-list li span{font-size:13px;color:var(--text-weak)}
.intro-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.intro-visual img{width:100%;height:420px;object-fit:cover}
.intro-visual::after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(15,23,42,.25),transparent 60%)}
.intro-visual .visual-tag{position:absolute;left:20px;bottom:20px;z-index:2;background:rgba(255,255,255,.92);padding:8px 18px;border-radius:999px;font-size:13px;font-weight:600;color:var(--primary);box-shadow:var(--shadow)}

/* Categories */
.categories{background:var(--bg)}
.category-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.category-card{background:var(--surface);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-light);display:flex;flex-direction:column;transition:var(--ease)}
.category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.category-cover{position:relative;height:220px;overflow:hidden}
.category-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.category-card:hover .category-cover img{transform:scale(1.05)}
.category-cover::after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(15,23,42,.35),transparent 60%)}
.category-cover .cat-count{position:absolute;top:16px;right:16px;z-index:2;background:rgba(255,255,255,.9);color:var(--text);font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;backdrop-filter:blur(4px)}
.category-cover .cat-ico{position:absolute;left:20px;bottom:-24px;z-index:3;width:52px;height:52px;background:linear-gradient(135deg,var(--primary),#7c3aed);border-radius:14px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;box-shadow:var(--shadow)}
.category-body{padding:36px 28px 28px}
.category-body h3{font-size:20px;font-weight:700;margin-bottom:10px}
.category-body p{color:var(--text-weak);font-size:14px;line-height:1.7;margin-bottom:20px}
.category-link{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:14px;font-weight:600}
.category-link:hover{gap:14px}

/* News */
.news{background:var(--surface)}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{background:var(--bg);border:1px solid var(--border-light);border-radius:var(--radius);padding:28px;transition:var(--ease);position:relative;display:flex;flex-direction:column}
.news-card:hover{border-color:var(--primary);box-shadow:var(--shadow);transform:translateY(-4px);background:var(--surface)}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;gap:6px;background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:600;padding:4px 14px;border-radius:999px}
.badge.alt{background:#fef3c7;color:#92400e}
.news-date{font-size:13px;color:var(--text-faint);display:inline-flex;align-items:center;gap:6px}
.news-card h3{font-size:18px;font-weight:700;line-height:1.45;margin-bottom:10px}
.news-card h3 a{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card h3 a:hover{color:var(--primary)}
.news-card p{font-size:14px;color:var(--text-weak);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:18px}
.read-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:13px;font-weight:600;margin-top:auto}
.read-more:hover{gap:12px}
.empty-state{padding:48px;text-align:center;background:var(--bg);border-radius:var(--radius);border:1px dashed var(--border);color:var(--text-faint);font-size:15px}
.news-more{text-align:center;margin-top:40px}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text);padding:12px 32px}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}

/* Features */
.features{background:linear-gradient(180deg,var(--bg),#eef2ff)}
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feature-card{background:var(--surface);border-radius:var(--radius);padding:32px 26px;border:1px solid var(--border-light);transition:var(--ease);position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:-40px;right:-40px;width:90px;height:90px;background:var(--primary-light);border-radius:50%;transition:var(--ease)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.feature-card:hover::before{transform:scale(2.4)}
.feature-ico{position:relative;width:52px;height:52px;background:linear-gradient(135deg,var(--primary),#7c3aed);border-radius:14px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;margin-bottom:18px;box-shadow:0 6px 18px rgba(var(--primary-rgb),.28)}
.feature-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.feature-card p{font-size:13px;color:var(--text-weak);line-height:1.7}

/* Process */
.process{background:var(--surface)}
.process-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;position:relative;counter-reset:step}
.process-steps::before{content:'';position:absolute;top:44px;left:12%;right:12%;height:2px;background:linear-gradient(90deg,var(--primary),#e0e7ff);z-index:0}
.step-item{position:relative;text-align:center;padding:0 8px}
.step-num{position:relative;z-index:1;width:68px;height:68px;margin:0 auto 18px;background:var(--surface);border:2px solid var(--primary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;color:var(--primary);box-shadow:0 0 0 6px var(--surface);transition:var(--ease)}
.step-item:hover .step-num{background:var(--primary);color:#fff}
.step-item h3{font-size:16px;font-weight:700;margin-bottom:8px}
.step-item p{font-size:13px;color:var(--text-weak);line-height:1.7}

/* Tags */
.tags-section{background:var(--bg)}
.tags-wrap{max-width:760px;margin:0 auto;background:var(--surface);border-radius:var(--radius-lg);padding:40px;border:1px solid var(--border-light);box-shadow:var(--shadow-sm)}
.tags-cloud{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.tag{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:999px;background:var(--bg);border:1px solid var(--border);font-size:14px;color:var(--text-weak);transition:var(--ease)}
.tag:hover{background:var(--primary);border-color:var(--primary);color:#fff;transform:translateY(-2px)}
.tag .hot-dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.tag:hover .hot-dot{background:#fff}

/* FAQ */
.faq{background:var(--surface)}
.faq-list{max-width:860px;margin:0 auto;display:grid;gap:16px}
.faq-item{background:var(--bg);border:1px solid var(--border-light);border-radius:var(--radius);overflow:hidden;transition:var(--ease)}
.faq-item.open{background:var(--surface);border-color:var(--primary);box-shadow:var(--shadow)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 26px;background:none;border:none;text-align:left;font-size:16px;font-weight:600;color:var(--text)}
.faq-q i{color:var(--primary);transition:var(--ease);flex-shrink:0;font-size:14px}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 26px 22px;color:var(--text-weak);font-size:14px;line-height:1.8}

/* CTA */
.cta-section{position:relative;padding:100px 0;background:linear-gradient(120deg,rgba(15,23,42,.92),rgba(79,70,229,.84)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;color:#fff;text-align:center}
.cta-section h2{font-size:36px;font-weight:800;letter-spacing:-.5px;margin-bottom:14px}
.cta-section p{color:rgba(255,255,255,.82);font-size:16px;max-width:560px;margin:0 auto 34px}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* Footer */
.footer{background:#0f172a;color:#94a3b8;padding:64px 0 0}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;padding-bottom:44px}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:16px;max-width:320px}
.footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;display:inline-flex;align-items:center;gap:8px;transition:var(--ease)}
.footer-links a:hover{color:#fff;padding-left:4px}
.footer-links a i{color:var(--primary);font-size:11px}
.footer-bottom{ border-top:1px solid #1e293b;padding:24px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px}
.footer-bottom .tech{color:#475569}

/* Mobile nav */
@media(max-width:1024px){
  .section{padding:56px 0}
  .hero{padding:90px 0 80px}
  .hero h1{font-size:42px}
  .intro-grid{grid-template-columns:1fr;gap:40px}
  .category-grid{grid-template-columns:1fr 1fr}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .process-steps{grid-template-columns:repeat(2,1fr);gap:36px}
  .process-steps::before{display:none}
  .footer-main{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .header-inner{flex-wrap:wrap;height:auto;padding:14px 0}
  .logo{margin-right:auto}
  .nav-search{order:3;max-width:100%;flex-basis:100%;margin:10px 0 0}
  .nav-toggle{display:flex}
  .nav-links{display:none;flex-basis:100%;flex-direction:column;align-items:stretch;padding:12px 0 0;gap:6px}
  .nav-links.open{display:flex}
  .nav-links a{justify-content:center;padding:12px}
  .hero h1{font-size:34px}
  .hero-stats{gap:24px}
  .stat-num{font-size:26px}
  .intro-visual img{height:280px}
  .category-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .features-grid{grid-template-columns:1fr}
  .process-steps{grid-template-columns:1fr}
  .section-head h2{font-size:28px}
  .cta-section h2{font-size:30px}
  .footer-main{grid-template-columns:1fr;gap:36px}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media(max-width:520px){
  .container{padding:0 18px}
  .hero h1{font-size:28px}
  .hero-desc{font-size:15px}
  .hero-actions .btn{width:100%;justify-content:center}
  .stat-num{font-size:22px}
  .section-head h2{font-size:24px}
  .tags-wrap{padding:24px}
  .faq-q{font-size:14px;padding:18px 20px}
}

/* roulang page: category1 */
:root {
  --c-primary: #2563eb;
  --c-primary-dark: #1d4ed8;
  --c-primary-light: #dbeafe;
  --c-primary-lighter: #eff6ff;
  --c-secondary: #06b6d4;
  --c-accent: #f59e0b;
  --c-accent-light: #fef3c7;
  --c-dark: #0f172a;
  --c-dark-2: #1e293b;
  --c-bg: #f8fafc;
  --c-bg-gray: #f1f5f9;
  --c-white: #ffffff;
  --c-text: #1e293b;
  --c-text-light: #64748b;
  --c-text-lighter: #94a3b8;
  --c-border: #e2e8f0;
  --c-success: #10b981;
  --c-danger: #ef4444;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 999px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,.07);
  --shadow-lg: 0 18px 44px rgba(0,0,0,.10);
  --transition: all .25s ease;
  --header-h: 72px;
  --container-w: 1220px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-bg);
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }
ul, ol { list-style: none; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-alt { background: var(--c-bg-gray); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-tag { display: inline-flex; align-items: center; gap: 6px; background: var(--c-primary-lighter); color: var(--c-primary); font-size: 13px; font-weight: 700; padding: 6px 16px; border-radius: var(--radius-full); letter-spacing: .3px; }
.section-title { font-size: clamp(28px, 3.4vw, 38px); font-weight: 800; color: var(--c-dark); line-height: 1.25; margin: 14px 0 14px; }
.section-desc { font-size: 16px; color: var(--c-text-light); line-height: 1.75; }

/* Header */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-border);
  height: var(--header-h);
}
.header-inner { display: flex; align-items: center; gap: 20px; height: var(--header-h); }
.logo { display: flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 800; color: var(--c-dark); white-space: nowrap; }
.logo-icon { width: 36px; height: 36px; background: linear-gradient(135deg, var(--c-primary), var(--c-secondary)); color: #fff; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 16px; box-shadow: var(--shadow-sm); }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-links a { display: inline-flex; align-items: center; padding: 9px 16px; font-size: 14px; font-weight: 600; color: var(--c-text-light); border-radius: var(--radius-full); transition: var(--transition); }
.nav-links a:hover { color: var(--c-primary); background: var(--c-primary-lighter); }
.nav-links a.active { color: var(--c-primary); background: var(--c-primary-lighter); font-weight: 700; }
.nav-search { display: flex; align-items: center; background: var(--c-bg-gray); border: 1px solid var(--c-border); border-radius: var(--radius-full); padding: 4px 6px 4px 16px; min-width: 220px; transition: var(--transition); }
.nav-search:focus-within { border-color: var(--c-primary); background: #fff; box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.nav-search .search-icon { color: var(--c-text-lighter); font-size: 14px; margin-right: 8px; }
.nav-search input { border: none; outline: none; background: transparent; font-size: 14px; color: var(--c-text); width: 100%; }
.nav-search input::placeholder { color: var(--c-text-lighter); }
.nav-search button { background: var(--c-primary); color: #fff; border: none; width: 34px; height: 34px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 13px; transition: var(--transition); }
.nav-search button:hover { background: var(--c-primary-dark); }
.nav-toggle { display: none; background: none; border: none; font-size: 22px; color: var(--c-dark); padding: 8px; }

/* Hero */
.page-hero {
  position: relative;
  background: linear-gradient(135deg, rgba(15,23,42,.88), rgba(30,41,59,.78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 96px 0 88px;
  color: #fff;
}
.page-hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(600px 260px at 80% 20%, rgba(6,182,212,.22), transparent 60%); }
.page-hero .container { position: relative; z-index: 2; }
.hero-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,.7); margin-bottom: 18px; }
.hero-breadcrumb a:hover { color: #fff; }
.hero-breadcrumb .sep { opacity: .5; }
.page-hero h1 { font-size: clamp(32px, 4.6vw, 52px); font-weight: 900; line-height: 1.2; margin-bottom: 16px; letter-spacing: -.5px; }
.page-hero h1 .highlight { color: var(--c-accent); }
.page-hero p.lead { font-size: 17px; line-height: 1.8; color: rgba(255,255,255,.85); max-width: 680px; }
.hero-stats { display: flex; gap: 32px; margin-top: 32px; flex-wrap: wrap; }
.hero-stat .num { font-size: 28px; font-weight: 800; color: #fff; }
.hero-stat .label { font-size: 13px; color: rgba(255,255,255,.65); margin-top: 2px; }
.hero-actions { display: flex; gap: 14px; margin-top: 36px; flex-wrap: wrap; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 30px; border-radius: var(--radius-full); font-weight: 700; font-size: 15px; border: none; transition: var(--transition); }
.btn i { font-size: 14px; }
.btn-primary { background: var(--c-primary); color: #fff; box-shadow: 0 6px 18px rgba(37,99,235,.28); }
.btn-primary:hover { background: var(--c-primary-dark); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(37,99,235,.36); }
.btn-outline { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,.55); }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,.1); }
.btn-light { background: #fff; color: var(--c-dark); box-shadow: var(--shadow-sm); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* Feature Cards */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.card { background: var(--c-white); border-radius: var(--radius-lg); padding: 28px; border: 1px solid var(--c-border); box-shadow: var(--shadow-sm); transition: var(--transition); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }
.card-icon { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 20px; margin-bottom: 18px; }
.card-icon.blue { background: var(--c-primary-lighter); color: var(--c-primary); }
.card-icon.teal { background: #ecfeff; color: var(--c-secondary); }
.card-icon.amber { background: var(--c-accent-light); color: var(--c-accent); }
.card-icon.green { background: #ecfdf5; color: var(--c-success); }
.card h3 { font-size: 17px; font-weight: 700; color: var(--c-dark); margin-bottom: 8px; }
.card p { font-size: 14px; color: var(--c-text-light); line-height: 1.7; }

/* Steps */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step-card { background: var(--c-white); border-radius: var(--radius-lg); border: 1px solid var(--c-border); padding: 32px 26px; position: relative; transition: var(--transition); }
.step-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.step-card::before { counter-increment: step; content: counter(step, decimal-leading-zero); position: absolute; top: 22px; right: 22px; font-size: 32px; font-weight: 900; color: var(--c-primary-lighter); line-height: 1; }
.step-num { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 12px; background: var(--c-primary-lighter); color: var(--c-primary); font-weight: 800; font-size: 16px; margin-bottom: 16px; }
.step-card h3 { font-size: 16px; font-weight: 700; color: var(--c-dark); margin-bottom: 8px; }
.step-card p { font-size: 14px; color: var(--c-text-light); line-height: 1.65; }

/* Entry Type Cards */
.entry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.entry-card { background: var(--c-white); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--c-border); box-shadow: var(--shadow-sm); transition: var(--transition); }
.entry-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.entry-card .cover { position: relative; height: 180px; overflow: hidden; }
.entry-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.entry-card:hover .cover img { transform: scale(1.05); }
.entry-card .cover::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(15,23,42,.3), transparent 50%); }
.entry-card .cover .entry-tag { position: absolute; top: 14px; left: 14px; z-index: 2; background: rgba(255,255,255,.95); color: var(--c-dark); font-size: 12px; font-weight: 700; padding: 5px 12px; border-radius: var(--radius-full); }
.entry-card .body { padding: 22px 24px 26px; }
.entry-card .body h3 { font-size: 17px; font-weight: 700; color: var(--c-dark); margin-bottom: 8px; }
.entry-card .body p { font-size: 14px; color: var(--c-text-light); line-height: 1.7; margin-bottom: 14px; }
.entry-meta { display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--c-text-lighter); }
.entry-meta i { font-size: 12px; }

/* Article List */
.article-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.article-card { display: flex; gap: 20px; background: var(--c-white); border-radius: var(--radius-lg); padding: 18px; border: 1px solid var(--c-border); transition: var(--transition); }
.article-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: transparent; }
.article-card .thumb { width: 130px; height: 100px; border-radius: var(--radius-md); overflow: hidden; flex-shrink: 0; }
.article-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.article-card:hover .thumb img { transform: scale(1.06); }
.article-card .info { display: flex; flex-direction: column; justify-content: center; }
.article-card .info .date { font-size: 12px; color: var(--c-text-lighter); margin-bottom: 6px; display: flex; align-items: center; gap: 6px; }
.article-card .info h3 { font-size: 16px; font-weight: 700; color: var(--c-dark); line-height: 1.4; margin-bottom: 6px; }
.article-card .info h3 a:hover { color: var(--c-primary); }
.article-card .info .desc { font-size: 13px; color: var(--c-text-light); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* FAQ */
.faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--c-white); border: 1px solid var(--c-border); border-radius: var(--radius-md); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: var(--c-primary-light); }
.faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--c-dark); cursor: pointer; list-style: none; transition: var(--transition); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .faq-icon { width: 28px; height: 28px; border-radius: 50%; background: var(--c-primary-lighter); color: var(--c-primary); display: flex; align-items: center; justify-content: center; font-size: 13px; flex-shrink: 0; transition: var(--transition); }
.faq-item[open] summary .faq-icon { background: var(--c-primary); color: #fff; transform: rotate(45deg); }
.faq-item .faq-answer { padding: 0 24px 20px; color: var(--c-text-light); font-size: 14px; line-height: 1.8; }

/* CTA */
.cta-band { background: linear-gradient(135deg, var(--c-primary), var(--c-secondary)); border-radius: var(--radius-lg); padding: 52px; display: flex; align-items: center; justify-content: space-between; gap: 32px; color: #fff; position: relative; overflow: hidden; }
.cta-band::before { content: ''; position: absolute; right: -40px; top: -40px; width: 180px; height: 180px; border-radius: 50%; background: rgba(255,255,255,.1); }
.cta-band h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; margin-bottom: 8px; }
.cta-band p { font-size: 15px; opacity: .92; max-width: 480px; }
.cta-band .btn-light { white-space: nowrap; }

/* Footer */
.footer { background: var(--c-dark); color: rgba(255,255,255,.75); padding: 60px 0 0; }
.footer-main { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; padding-bottom: 44px; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.55); margin-top: 14px; max-width: 320px; }
.footer h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,.55); display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
.footer-links a i { font-size: 11px; color: var(--c-secondary); }
.footer-links a:hover { color: #fff; padding-left: 3px; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 0; font-size: 13px; flex-wrap: wrap; }
.footer-bottom span { color: rgba(255,255,255,.45); }
.footer-bottom .tech { color: rgba(255,255,255,.35); }

/* Animations */
@keyframes fadeUp { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: translateY(0); } }
.anim { opacity: 0; }
.anim.visible { animation: fadeUp .7s ease forwards; }

/* Responsive */
@media (max-width: 1024px) {
  .feature-grid, .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .entry-grid { grid-template-columns: repeat(2, 1fr); }
  .article-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  :root { --header-h: 62px; }
  .section { padding: 60px 0; }
  .header-inner { flex-wrap: wrap; }
  .logo { font-size: 17px; }
  .nav-links { display: none; position: fixed; top: var(--header-h); left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--c-border); flex-direction: column; align-items: stretch; padding: 14px; gap: 4px; box-shadow: var(--shadow-md); }
  .nav-links.open { display: flex; }
  .nav-links a { justify-content: flex-start; padding: 12px 16px; }
  .nav-search { order: 3; width: 100%; margin-top: 4px; }
  .nav-toggle { display: block; margin-left: auto; }
  .nav-links { margin-left: 0; }
  .header-inner { gap: 10px; }
  .feature-grid, .steps-grid, .entry-grid, .article-grid { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; text-align: center; padding: 36px 24px; }
  .page-hero { padding: 60px 0 56px; }
  .hero-stats { gap: 20px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { justify-content: center; width: 100%; }
  .footer-main { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; justify-content: center; text-align: center; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .section-title { font-size: 26px; }
  .page-hero h1 { font-size: 30px; }
  .entry-card .cover { height: 150px; }
}

/* roulang page: article */
:root {
    --primary: #2f6bff;
    --primary-dark: #1e4fd6;
    --primary-light: #eaf0ff;
    --accent: #ff7849;
    --accent-light: #fff4ee;
    --deep: #0e1a34;
    --bg: #f6f8fc;
    --card: #ffffff;
    --text: #1a2333;
    --muted: #5b6b83;
    --border: #e3e9f2;
    --success: #10b981;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, .06);
    --shadow: 0 8px 30px rgba(15, 23, 42, .08);
    --shadow-lg: 0 20px 50px rgba(15, 23, 42, .12);
    --transition: .25s cubic-bezier(.4, 0, .2, 1);
    --nav-height: 76px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input { font: inherit; border: none; outline: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 999px;
    font-weight: 600;
    font-size: .95rem;
    cursor: pointer;
    transition: all var(--transition);
    border: 2px solid transparent;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 25px rgba(47, 107, 255, .3); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary-light); transform: translateY(-2px); }
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { background: var(--primary-light); transform: translateY(-2px); }
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    border-radius: 999px;
    font-size: .82rem;
    font-weight: 600;
    background: var(--primary-light);
    color: var(--primary);
}
.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 36px;
    gap: 16px;
}
.section-head h2 {
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1.3;
    position: relative;
    padding-left: 18px;
}
.section-head h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 5px;
    border-radius: 4px;
    background: var(--primary);
}
.section-head .more-link {
    color: var(--muted);
    font-size: .9rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition);
}
.section-head .more-link:hover { color: var(--primary); }
/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 1px 8px rgba(15, 23, 42, .04);
}
.header-inner {
    display: flex;
    align-items: center;
    gap: 20px;
    height: var(--nav-height);
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--text);
    white-space: nowrap;
}
.logo-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), #6b9aff);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.1rem;
    box-shadow: 0 6px 16px rgba(47, 107, 255, .35);
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-left: 12px;
}
.nav-links a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    font-size: .93rem;
    font-weight: 500;
    color: var(--muted);
    transition: all var(--transition);
    white-space: nowrap;
}
.nav-links a:hover { color: var(--primary); background: var(--primary-light); }
.nav-links a.active { color: var(--primary); background: var(--primary-light); font-weight: 700; }
.nav-search {
    flex: 1;
    display: flex;
    align-items: center;
    background: #f3f6fb;
    border-radius: 999px;
    padding: 0 8px 0 18px;
    height: 44px;
    border: 1px solid transparent;
    transition: all var(--transition);
    max-width: 420px;
    margin-left: auto;
}
.nav-search:focus-within {
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(47, 107, 255, .12);
}
.nav-search .search-icon { color: var(--muted); font-size: .9rem; margin-right: 8px; }
.nav-search input {
    flex: 1;
    background: transparent;
    font-size: .9rem;
    color: var(--text);
}
.nav-search input::placeholder { color: #9aa7b9; }
.nav-search button {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: .85rem;
    transition: all var(--transition);
}
.nav-search button:hover { background: var(--primary-dark); }
.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 1.1rem;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}
/* Page Hero */
.page-hero {
    position: relative;
    padding: 72px 0 60px;
    background: var(--deep);
    color: #fff;
    overflow: hidden;
}
.page-hero .hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: .4;
}
.page-hero .hero-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(14, 26, 52, .85) 0%, rgba(14, 26, 52, .5) 50%, rgba(47, 107, 255, .35) 100%);
}
.page-hero .container { position: relative; z-index: 2; }
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: .88rem;
    color: rgba(255, 255, 255, .7);
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.breadcrumb a { color: rgba(255, 255, 255, .85); transition: color var(--transition); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb i { font-size: .7rem; color: rgba(255, 255, 255, .4); }
.breadcrumb span { color: rgba(255, 255, 255, .9); }
.page-hero h1 {
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1.35;
    max-width: 840px;
    margin-bottom: 20px;
}
.hero-meta {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}
.hero-meta .badge { background: rgba(47, 107, 255, .35); color: #fff; border: 1px solid rgba(255, 255, 255, .2); }
.hero-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: .9rem;
    color: rgba(255, 255, 255, .8);
}
/* Article Section */
.article-section { padding: 60px 0; }
.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 40px;
    align-items: start;
}
.article-content { min-width: 0; }
.article-card {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    padding: 0;
}
.article-featured {
    width: 100%;
    height: 360px;
    object-fit: cover;
}
.article-body { padding: 36px 40px 24px; }
.article-body h2 {
    font-size: 1.45rem;
    font-weight: 700;
    margin: 2.2rem 0 1rem;
    padding-left: 14px;
    border-left: 4px solid var(--primary);
    line-height: 1.4;
}
.article-body h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 1.8rem 0 .8rem;
    color: var(--text);
}
.article-body p {
    margin-bottom: 1.1rem;
    font-size: 1.02rem;
    line-height: 1.85;
    color: #2a3446;
}
.article-body ul, .article-body ol {
    margin: 0 0 1.2rem;
    padding-left: 1.4rem;
}
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li {
    margin-bottom: .5rem;
    line-height: 1.8;
}
.article-body a {
    color: var(--primary);
    border-bottom: 1px solid rgba(47, 107, 255, .3);
    transition: all var(--transition);
}
.article-body a:hover { border-bottom-color: var(--primary); color: var(--primary-dark); }
.article-body blockquote {
    border-left: 4px solid var(--primary);
    background: var(--primary-light);
    padding: 16px 20px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 1.5rem 0;
    color: #33415e;
    font-style: italic;
}
.article-body img {
    border-radius: var(--radius);
    margin: 1.5rem 0;
    box-shadow: var(--shadow-sm);
}
.article-body pre {
    background: var(--deep);
    color: #e2e8f0;
    padding: 20px;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin: 1.4rem 0;
    font-size: .9rem;
    line-height: 1.6;
}
.article-body code { font-family: "JetBrains Mono", "Fira Code", Consolas, monospace; }
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: .92rem;
}
.article-body th, .article-body td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    text-align: left;
}
.article-body th { background: var(--primary-light); font-weight: 600; }
.article-footer { padding: 16px 40px 28px; border-top: 1px solid var(--border); }
.article-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
    padding-top: 4px;
}
.article-tags .label {
    font-size: .85rem;
    color: var(--muted);
    font-weight: 600;
}
.article-tags .tag-link {
    display: inline-block;
    padding: 5px 16px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: .82rem;
    color: var(--muted);
    transition: all var(--transition);
}
.article-tags .tag-link:hover {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
}
.article-share {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 6px;
}
.article-share .label { font-size: .85rem; color: var(--muted); font-weight: 600; }
.share-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .9rem;
    background: var(--bg);
    color: var(--muted);
    transition: all var(--transition);
    cursor: pointer;
}
.share-btn:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.article-pager {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 28px;
}
.pager-btn {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 22px;
    background: var(--card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}
.pager-btn:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-2px); }
.pager-btn .pager-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .9rem;
    flex-shrink: 0;
}
.pager-btn .pager-text { display: flex; flex-direction: column; min-width: 0; }
.pager-btn .pager-label { font-size: .8rem; color: var(--muted); }
.pager-btn .pager-title { font-size: .92rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pager-btn.pager-next { text-align: right; flex-direction: row-reverse; }
.pager-btn.pager-next .pager-text { align-items: flex-end; }
/* Sidebar */
.article-sidebar { display: flex; flex-direction: column; gap: 24px; }
.side-card {
    background: var(--card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    padding: 24px;
}
.side-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border);
    position: relative;
}
.side-card h3::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 48px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}
.side-cat-list { display: flex; flex-direction: column; gap: 12px; }
.side-cat-list a {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px;
    border-radius: 12px;
    background: var(--bg);
    transition: all var(--transition);
}
.side-cat-list a:hover { background: var(--primary-light); transform: translateX(4px); }
.side-cat-list a i {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}
.side-cat-list a:nth-child(2) i { background: var(--accent); }
.side-cat-list a div { display: flex; flex-direction: column; }
.side-cat-list a strong { font-size: .93rem; font-weight: 600; }
.side-cat-list a span { font-size: .78rem; color: var(--muted); }
.side-post-list { display: flex; flex-direction: column; }
.side-post-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    transition: all var(--transition);
}
.side-post-list a:last-child { border-bottom: none; }
.side-post-list a:hover .side-post-title { color: var(--primary); }
.side-post-title {
    font-size: .9rem;
    font-weight: 500;
    color: var(--text);
    transition: color var(--transition);
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-height: 1.5;
}
.side-post-date { font-size: .78rem; color: var(--muted); white-space: nowrap; }
/* Related Section */
.related-section { padding: 60px 0; background: var(--card); border-top: 1px solid var(--border); }
.related-grid {
    display: grid;
    grid-template-columns: repeat(4, 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-lg); transform: translateY(-4px); border-color: transparent; }
.related-card img { width: 100%; height: 160px; object-fit: cover; transition: transform .4s; }
.related-card:hover img { transform: scale(1.05); }
.related-card .related-body { padding: 16px 18px; }
.related-card .related-body h3 {
    font-size: .95rem;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 42px;
    color: var(--text);
    transition: color var(--transition);
}
.related-card:hover .related-body h3 { color: var(--primary); }
.related-card .related-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: .8rem;
    color: var(--muted);
}
/* FAQ Section */
.faq-section { padding: 60px 0; }
.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.faq-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: all var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow); border-color: transparent; }
.faq-item h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.faq-item h3 i {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: .8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.faq-item p { font-size: .92rem; color: var(--muted); line-height: 1.75; }
/* CTA Section */
.cta-section { padding: 0 0 60px; }
.cta-box {
    position: relative;
    background: linear-gradient(135deg, var(--deep), #16275a 60%, #1e3a8a);
    border-radius: 24px;
    padding: 56px 60px;
    text-align: center;
    color: #fff;
    overflow: hidden;
}
.cta-box::before {
    content: "";
    position: absolute;
    top: -60%;
    right: -20%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(47, 107, 255, .25);
    filter: blur(60px);
}
.cta-box h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 14px;
    position: relative;
}
.cta-box p {
    color: rgba(255, 255, 255, .75);
    font-size: 1rem;
    max-width: 560px;
    margin: 0 auto 30px;
    position: relative;
}
.cta-box .cta-btns {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    position: relative;
}
/* Not Found */
.notfound-section {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 0;
    text-align: center;
}
.notfound-section .container { max-width: 560px; }
.notfound-section .notfound-icon {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}
.notfound-section h1 { font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; }
.notfound-section p { color: var(--muted); margin-bottom: 28px; }
/* Footer */
.footer {
    background: var(--deep);
    color: rgba(255, 255, 255, .8);
    padding: 60px 0 0;
}
.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.footer-brand p {
    margin-top: 16px;
    font-size: .92rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, .55);
    max-width: 340px;
}
.footer h4 {
    color: #fff;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 20px;
}
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: .9rem;
    color: rgba(255, 255, 255, .6);
    transition: all var(--transition);
}
.footer-links a i { font-size: .65rem; color: var(--primary); }
.footer-links a:hover { color: #fff; transform: translateX(4px); }
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    font-size: .85rem;
    color: rgba(255, 255, 255, .4);
    flex-wrap: wrap;
    gap: 10px;
}
.footer-bottom .tech { color: rgba(255, 255, 255, .35); font-size: .8rem; }
/* Responsive */
@media (max-width: 1024px) {
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .article-layout { grid-template-columns: 1fr; }
    .article-sidebar { flex-direction: row; flex-wrap: wrap; }
    .side-card { flex: 1; min-width: 280px; }
}
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px 24px;
        gap: 6px;
        border-bottom: 1px solid var(--border);
        display: none;
        box-shadow: var(--shadow-lg);
        z-index: 99;
    }
    .nav-links.open { display: flex; }
    .nav-search { display: none; }
    .nav-toggle { display: flex; }
    .page-hero { padding: 48px 0 40px; }
    .page-hero h1 { font-size: 1.6rem; }
    .article-body { padding: 24px 20px 16px; }
    .article-footer { padding: 16px 20px 20px; }
    .article-featured { height: 240px; }
    .article-pager { flex-direction: column; }
    .pager-btn { width: 100%; }
    .cta-box { padding: 40px 28px; }
    .cta-box h2 { font-size: 1.4rem; }
    .faq-grid { grid-template-columns: 1fr; }
    .footer-main { grid-template-columns: 1fr; gap: 32px; }
    .section-head { flex-direction: column; align-items: flex-start; }
    .section-head h2 { font-size: 1.4rem; }
}
@media (max-width: 520px) {
    .container { padding: 0 18px; }
    .nav-links a { font-size: .9rem; padding: 10px 14px; }
    .page-hero { padding: 36px 0 32px; }
    .page-hero h1 { font-size: 1.35rem; }
    .breadcrumb { font-size: .8rem; }
    .hero-meta { gap: 10px; }
    .related-grid { grid-template-columns: 1fr; }
    .cta-box { padding: 32px 22px; border-radius: 18px; }
    .cta-box h2 { font-size: 1.2rem; }
    .cta-btns .btn { width: 100%; }
}

/* roulang page: category2 */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #dbeafe;
            --accent: #f59e0b;
            --accent-light: #fef3c7;
            --bg: #f8fafc;
            --bg-white: #ffffff;
            --bg-dark: #0f172a;
            --text: #1e293b;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow: 0 4px 24px rgba(15, 23, 42, .06);
            --shadow-lg: 0 12px 40px rgba(15, 23, 42, .12);
            --spacing: 80px;
            --transition: all .3s cubic-bezier(.4, 0, .2, 1)
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0
        }
        html {
            scroll-behavior: smooth
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased
        }
        img {
            max-width: 100%;
            display: block;
            border-radius: var(--radius)
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition)
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none
        }
        input {
            font-family: inherit;
            outline: none
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px
        }
        .section {
            padding: var(--spacing) 0
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 40px;
            flex-wrap: wrap
        }
        .section-title {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -.5px
        }
        .section-title::after {
            content: '';
            display: block;
            width: 48px;
            height: 4px;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            margin-top: 12px
        }
        .section-sub {
            color: var(--text-weak);
            font-size: 15px;
            max-width: 640px;
            margin-top: 8px
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600
        }
        .badge.hot {
            background: #fee2e2;
            color: #b91c1c
        }
        .badge.new {
            background: #dcfce7;
            color: #166534
        }
        .badge.accent {
            background: var(--accent-light);
            color: #b45309
        }
        .card {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition)
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: #c7d2fe
        }
        .header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 12px rgba(15, 23, 42, .04)
        }
        .header-inner {
            display: flex;
            align-items: center;
            gap: 24px;
            height: 72px
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), #60a5fa);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            box-shadow: 0 4px 12px rgba(37, 99, 235, .3)
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1
        }
        .nav-links a {
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-weak);
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
            transition: var(--transition)
        }
        .nav-links a:hover {
            background: var(--primary-light);
            color: var(--primary-dark)
        }
        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(37, 99, 235, .3)
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0 6px 0 16px;
            width: 260px;
            transition: var(--transition);
            flex-shrink: 1
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(37, 99, 235, .1)
        }
        .nav-search .search-icon {
            color: var(--text-weak)
        }
        .nav-search input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 9px 10px;
            font-size: 14px;
            color: var(--text)
        }
        .nav-search input::placeholder {
            color: #94a3b8
        }
        .nav-search button {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: var(--transition)
        }
        .nav-search button:hover {
            background: var(--primary-dark)
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--bg);
            color: var(--text);
            font-size: 18px;
            align-items: center;
            justify-content: center
        }
        .hero {
            background: linear-gradient(135deg, rgba(37, 99, 235, .08), rgba(245, 158, 11, .06)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 90px 0 0;
            position: relative;
            overflow: hidden
        }
        .hero-inner {
            display: grid;
            grid-template-columns: 1.1fr .9fr;
            gap: 48px;
            align-items: center;
            padding-bottom: 80px
        }
        .hero-crumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 20px
        }
        .hero-crumb a:hover {
            color: var(--primary)
        }
        .hero h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -1px;
            margin-bottom: 16px
        }
        .hero h1 span {
            background: linear-gradient(90deg, var(--primary), #7c3aed);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent
        }
        .hero p {
            color: var(--text-weak);
            font-size: 17px;
            max-width: 560px;
            margin-bottom: 32px
        }
        .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 24px
        }
        .hero-stat {
            text-align: left
        }
        .hero-stat strong {
            display: block;
            font-size: 28px;
            font-weight: 800;
            color: var(--primary)
        }
        .hero-stat span {
            font-size: 13px;
            color: var(--text-weak)
        }
        .hero-visual {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            transform: rotate(2deg)
        }
        .hero-visual img {
            border-radius: var(--radius);
            width: 100%;
            height: 260px;
            object-fit: cover
        }
        .hero-visual .floating-tag {
            position: absolute;
            background: var(--bg-white);
            border-radius: 12px;
            padding: 10px 16px;
            font-size: 13px;
            font-weight: 600;
            box-shadow: var(--shadow);
            border: 1px solid var(--border)
        }
        .ticker {
            background: var(--bg-dark);
            padding: 16px 0;
            color: #fff
        }
        .ticker-inner {
            display: flex;
            align-items: center;
            gap: 16px;
            overflow: hidden;
            white-space: nowrap
        }
        .ticker-label {
            background: var(--accent);
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            flex-shrink: 0
        }
        .ticker-items {
            display: flex;
            gap: 40px;
            animation: ticker 30s linear infinite
        }
        .ticker-items a {
            font-size: 14px;
            color: #e2e8f0;
            display: inline-flex;
            align-items: center;
            gap: 8px
        }
        .ticker-items a:hover {
            color: var(--accent)
        }
        @keyframes ticker {
            0% {
                transform: translateX(0)
            }
            100% {
                transform: translateX(-50%)
            }
        }
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px
        }
        .news-card {
            display: flex;
            gap: 20px;
            padding: 20px;
            align-items: center
        }
        .news-card img {
            width: 180px;
            height: 120px;
            object-fit: cover;
            border-radius: 12px;
            flex-shrink: 0
        }
        .news-body {
            flex: 1;
            min-width: 0
        }
        .news-body h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 8px 0 6px;
            line-height: 1.5
        }
        .news-body h3 a:hover {
            color: var(--primary)
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-weak)
        }
        .news-desc {
            font-size: 14px;
            color: var(--text-weak);
            margin-top: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden
        }
        .timeline {
            position: relative;
            padding: 40px 0 20px
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 24px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(180deg, var(--primary), var(--accent));
            border-radius: 3px;
            opacity: .3
        }
        .timeline-item {
            position: relative;
            padding-left: 76px;
            margin-bottom: 32px
        }
        .timeline-dot {
            position: absolute;
            left: 14px;
            top: 24px;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--primary);
            border: 4px solid var(--primary-light);
            box-shadow: 0 0 0 4px rgba(37, 99, 235, .15)
        }
        .timeline-card {
            padding: 24px;
            border-left: 4px solid var(--primary);
            border-radius: 12px;
            background: #fff
        }
        .timeline-card .date {
            font-size: 13px;
            color: var(--primary);
            font-weight: 700;
            letter-spacing: .5px
        }
        .timeline-card h3 {
            font-size: 18px;
            margin: 6px 0
        }
        .timeline-card p {
            font-size: 14px;
            color: var(--text-weak)
        }
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 12px
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            border-radius: 12px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            transition: var(--transition)
        }
        .rank-item:hover {
            transform: translateX(6px);
            border-color: var(--primary);
            box-shadow: var(--shadow)
        }
        .rank-num {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0
        }
        .rank-item:nth-child(1) .rank-num {
            background: var(--accent);
            color: #fff
        }
        .rank-item:nth-child(2) .rank-num {
            background: #e2e8f0;
            color: var(--text)
        }
        .rank-item:nth-child(3) .rank-num {
            background: #fed7aa;
            color: #9a3412
        }
        .rank-body {
            flex: 1;
            min-width: 0
        }
        .rank-body h4 {
            font-size: 15px;
            font-weight: 600;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis
        }
        .rank-body span {
            font-size: 13px;
            color: var(--text-weak)
        }
        .rank-hot {
            font-size: 12px;
            font-weight: 700;
            color: #ef4444;
            display: flex;
            align-items: center;
            gap: 4px
        }
        .topic-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px
        }
        .topic-tag {
            padding: 8px 18px;
            border-radius: 999px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-weak);
            transition: var(--transition)
        }
        .topic-tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: scale(1.05)
        }
        .topic-tag .count {
            color: var(--accent);
            font-weight: 700;
            margin-left: 4px
        }
        .topic-tag:hover .count {
            color: #fff
        }
        .discuss-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px
        }
        .discuss-card {
            padding: 28px;
            text-align: center;
            position: relative;
            overflow: hidden
        }
        .discuss-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent))
        }
        .discuss-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin: 0 auto 16px
        }
        .discuss-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px
        }
        .discuss-card p {
            font-size: 14px;
            color: var(--text-weak)
        }
        .discuss-card .count-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--bg);
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-weak);
            margin-top: 16px
        }
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px
        }
        .faq-item {
            padding: 24px;
            border-radius: var(--radius);
            background: var(--bg-white);
            border: 1px solid var(--border)
        }
        .faq-item h3 {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px
        }
        .faq-item h3 i {
            color: var(--primary)
        }
        .faq-item p {
            font-size: 14px;
            color: var(--text-weak);
            padding-left: 26px
        }
        .cta {
            background: var(--bg-dark);
            border-radius: var(--radius-lg);
            padding: 48px;
            text-align: center;
            position: relative;
            overflow: hidden
        }
        .cta::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(37, 99, 235, .3), transparent 70%);
            border-radius: 50%
        }
        .cta h2 {
            color: #fff;
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 12px
        }
        .cta p {
            color: #94a3b8;
            max-width: 520px;
            margin: 0 auto 28px
        }
        .cta .btn-light {
            background: #fff;
            color: var(--text);
            padding: 14px 36px;
            border-radius: 999px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition)
        }
        .cta .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(255, 255, 255, .2)
        }
        .footer {
            background: var(--bg-dark);
            color: #94a3b8;
            padding: 60px 0 0;
            margin-top: 0
        }
        .footer-main {
            display: grid;
            grid-template-columns: 2fr 1.5fr 2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .08)
        }
        .footer-brand p {
            margin-top: 16px;
            font-size: 14px;
            line-height: 1.8;
            max-width: 360px
        }
        .footer h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px
        }
        .footer-links a {
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition)
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            font-size: 13px
        }
        .footer-bottom .tech {
            color: #64748b
        }
        @media (max-width:1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 60px
            }
            .nav-links {
                display: none
            }
            .nav-links.open {
                display: flex;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 24px;
                gap: 8px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg)
            }
            .nav-search {
                display: none
            }
            .nav-toggle {
                display: flex
            }
            .footer-main {
                grid-template-columns: 1fr 1fr
            }
            .news-grid {
                grid-template-columns: 1fr
            }
            .discuss-grid {
                grid-template-columns: 1fr 1fr
            }
        }
        @media (max-width:768px) {
            :root {
                --spacing: 56px
            }
            .section-title {
                font-size: 24px
            }
            .hero h1 {
                font-size: 30px
            }
            .hero-stats {
                gap: 20px;
                flex-wrap: wrap
            }
            .news-card {
                flex-direction: column;
                align-items: flex-start
            }
            .news-card img {
                width: 100%;
                height: 180px
            }
            .faq-grid {
                grid-template-columns: 1fr
            }
            .footer-main {
                grid-template-columns: 1fr;
                gap: 32px
            }
            .discuss-grid {
                grid-template-columns: 1fr
            }
            .cta {
                padding: 36px 24px
            }
            .cta h2 {
                font-size: 24px
            }
        }
        @media (max-width:520px) {
            .container {
                padding: 0 16px
            }
            .hero {
                padding-top: 60px
            }
            .hero h1 {
                font-size: 26px
            }
            .section-title {
                font-size: 22px
            }
            .timeline-item {
                padding-left: 56px
            }
            .timeline::before {
                left: 16px
            }
            .timeline-dot {
                left: 8px
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center
            }
        }