/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #0b1929;
  --primary-light: #132a44;
  --primary-lighter: #1c3a5c;
  --accent: #f5b70a;
  --accent-hover: #d9a108;
  --accent-glow: rgba(245, 183, 10, 0.25);
  --danger: #e8493a;
  --danger-hover: #d13b2d;
  --bg-body: #f4f6f9;
  --bg-card: #ffffff;
  --bg-dark: #0b1929;
  --bg-dark-card: #112238;
  --text-light: #ffffff;
  --text-muted: #94a3b8;
  --text-dark: #1e293b;
  --text-secondary: #475569;
  --border-color: #e2e8f0;
  --border-dark: #1e3a5f;
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0,0,0,0.07);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.10);
  --shadow-glow: 0 0 30px rgba(245, 183, 10, 0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1200px;
  --header-top-h: 40px;
  --nav-h: 72px;
}
/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-sans);background:var(--bg-body);color:var(--text-dark);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:var(--accent);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--accent-hover)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit;outline:none;border:none}
button{cursor:pointer;background:none}
/* ===== 容器 ===== */
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}
@media(max-width:768px){.container{padding:0 16px}}
/* ===== 顶部信息条 ===== */
.header-top{background:var(--primary);height:var(--header-top-h);display:flex;align-items:center;border-bottom:1px solid rgba(255,255,255,0.06)}
.header-top .container{display:flex;justify-content:space-between;align-items:center}
.header-top .domain{color:var(--text-muted);font-size:13px;letter-spacing:0.3px}
.header-top .domain i{margin-right:6px;color:var(--accent)}
.header-top .top-tag{color:var(--accent);font-size:12px;background:rgba(245,183,10,0.12);padding:3px 14px;border-radius:20px;font-weight:500;letter-spacing:0.5px}
@media(max-width:640px){.header-top .top-tag{display:none}.header-top .domain{font-size:12px}}
/* ===== 主导航 ===== */
.main-nav{background:var(--primary);height:var(--nav-h);display:flex;align-items:center;position:sticky;top:0;z-index:1000;box-shadow:0 2px 20px rgba(0,0,0,0.15)}
.main-nav .container{display:flex;justify-content:space-between;align-items:center}
.nav-brand{display:flex;align-items:center;gap:10px}
.nav-brand .logo{font-size:24px;font-weight:800;color:var(--accent);letter-spacing:1px;text-shadow:0 0 20px rgba(245,183,10,0.2);transition:var(--transition)}
.nav-brand .logo:hover{text-shadow:0 0 30px rgba(245,183,10,0.4)}
.nav-brand .logo i{color:var(--danger);margin-right:6px}
.nav-menu{display:flex;align-items:center;gap:8px}
.nav-menu a{color:rgba(255,255,255,0.75);font-size:15px;font-weight:500;padding:8px 20px;border-radius:var(--radius-sm);transition:var(--transition);position:relative;letter-spacing:0.3px}
.nav-menu a:hover{color:var(--accent);background:rgba(245,183,10,0.08)}
.nav-menu a.active{color:var(--accent);background:rgba(245,183,10,0.12);box-shadow:inset 0 -2px 0 var(--accent)}
.nav-menu a i{margin-right:6px;font-size:14px}
.nav-cta{background:var(--accent);color:var(--primary) !important;font-weight:700;padding:8px 24px;border-radius:var(--radius-sm);transition:var(--transition)}
.nav-cta:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-glow) !important}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px;border-radius:6px;transition:var(--transition)}
.nav-toggle span{width:26px;height:2.5px;background:var(--accent);border-radius:3px;transition:var(--transition)}
.nav-toggle:hover{background:rgba(245,183,10,0.1)}
@media(max-width:768px){
  .nav-toggle{display:flex}
  .nav-menu{position:fixed;top:calc(var(--header-top-h) + var(--nav-h));left:0;right:0;background:var(--primary);flex-direction:column;padding:16px 24px 24px;gap:4px;transform:translateY(-120%);opacity:0;pointer-events:none;transition:var(--transition);box-shadow:0 20px 40px rgba(0,0,0,0.3);border-top:1px solid rgba(255,255,255,0.06)}
  .nav-menu.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-menu a{width:100%;padding:12px 16px;font-size:16px}
  .nav-cta{margin-top:8px;text-align:center}
}
/* ===== Hero ===== */
.hero{position:relative;min-height:620px;display:flex;align-items:center;background:var(--bg-dark);overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center center/cover no-repeat;opacity:0.5;mix-blend-mode:overlay;animation:heroZoom 20s ease-in-out infinite alternate}
@keyframes heroZoom{0%{transform:scale(1)}100%{transform:scale(1.08)}}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,25,41,0.92) 0%,rgba(11,25,41,0.70) 50%,rgba(11,25,41,0.88) 100%)}
.hero .container{position:relative;z-index:2;padding:80px 24px 100px}
.hero-content{max-width:780px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(245,183,10,0.12);border:1px solid rgba(245,183,10,0.2);padding:6px 18px;border-radius:30px;font-size:13px;color:var(--accent);margin-bottom:24px;letter-spacing:0.5px;backdrop-filter:blur(6px)}
.hero-badge i{font-size:14px}
.hero h1{font-size:54px;font-weight:900;color:var(--text-light);line-height:1.15;margin-bottom:20px;letter-spacing:-0.5px}
.hero h1 span{color:var(--accent);text-shadow:0 0 40px rgba(245,183,10,0.3)}
.hero p{font-size:19px;color:var(--text-muted);line-height:1.8;max-width:640px;margin-bottom:36px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px}
.hero-actions .btn-primary{background:var(--accent);color:var(--primary);padding:14px 36px;border-radius:var(--radius-sm);font-weight:700;font-size:17px;transition:var(--transition);display:inline-flex;align-items:center;gap:10px;box-shadow:0 4px 20px rgba(245,183,10,0.3)}
.hero-actions .btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 8px 30px rgba(245,183,10,0.4)}
.hero-actions .btn-secondary{background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);color:var(--text-light);padding:14px 36px;border-radius:var(--radius-sm);font-weight:600;font-size:17px;transition:var(--transition);display:inline-flex;align-items:center;gap:10px;backdrop-filter:blur(6px)}
.hero-actions .btn-secondary:hover{background:rgba(255,255,255,0.12);border-color:rgba(255,255,255,0.25);transform:translateY(-2px)}
.hero-stats{display:flex;gap:40px;margin-top:50px;padding-top:36px;border-top:1px solid rgba(255,255,255,0.06)}
.hero-stat{text-align:left}
.hero-stat .num{font-size:32px;font-weight:800;color:var(--accent);line-height:1.2}
.hero-stat .label{font-size:14px;color:var(--text-muted);margin-top:4px}
@media(max-width:768px){
  .hero{min-height:480px}
  .hero h1{font-size:34px}
  .hero p{font-size:16px}
  .hero-stats{gap:24px;flex-wrap:wrap}
  .hero-stat .num{font-size:26px}
}
@media(max-width:520px){
  .hero h1{font-size:28px}
  .hero-actions .btn-primary,.hero-actions .btn-secondary{width:100%;justify-content:center}
  .hero-stats{gap:16px}
  .hero-stat{flex:1;min-width:80px}
}
/* ===== 板块通用 ===== */
.section{padding:80px 0}
.section-dark{background:var(--bg-dark);color:var(--text-light)}
.section-dark .section-subtitle{color:var(--text-muted)}
.section-light{background:var(--bg-body)}
.section-white{background:#ffffff}
.section-header{text-align:center;margin-bottom:52px}
.section-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(245,183,10,0.10);border:1px solid rgba(245,183,10,0.15);padding:4px 16px;border-radius:30px;font-size:13px;color:var(--accent);margin-bottom:16px;font-weight:500;letter-spacing:0.3px}
.section-tag i{font-size:12px}
.section-title{font-size:34px;font-weight:800;color:inherit;line-height:1.25;margin-bottom:14px;letter-spacing:-0.3px}
.section-dark .section-title{color:var(--text-light)}
.section-subtitle{font-size:17px;color:var(--text-secondary);max-width:620px;margin:0 auto;line-height:1.7}
.section-dark .section-subtitle{color:var(--text-muted)}
@media(max-width:768px){
  .section{padding:56px 0}
  .section-title{font-size:26px}
  .section-subtitle{font-size:15px}
  .section-header{margin-bottom:36px}
}
/* ===== 介绍板块 ===== */
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.intro-text h2{font-size:30px;font-weight:800;margin-bottom:18px;color:var(--text-dark);line-height:1.3}
.intro-text p{color:var(--text-secondary);margin-bottom:20px;font-size:16px;line-height:1.8}
.intro-features{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.intro-feature{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg-body);border-radius:var(--radius-sm);transition:var(--transition)}
.intro-feature:hover{transform:translateX(4px);box-shadow:var(--shadow)}
.intro-feature i{color:var(--accent);font-size:18px;width:22px;text-align:center}
.intro-feature span{font-size:15px;font-weight:500;color:var(--text-dark)}
.intro-image{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);aspect-ratio:4/3}
.intro-image img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.intro-image:hover img{transform:scale(1.03)}
.intro-image::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(245,183,10,0.08),transparent 50%);pointer-events:none}
@media(max-width:768px){
  .intro-grid{grid-template-columns:1fr;gap:32px}
  .intro-text h2{font-size:24px}
  .intro-features{grid-template-columns:1fr}
  .intro-image{aspect-ratio:16/9}
}
/* ===== 分类卡片 ===== */
.category-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.category-card{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--bg-dark-card);min-height:260px;display:flex;align-items:flex-end;box-shadow:var(--shadow);transition:var(--transition);border:1px solid rgba(255,255,255,0.06)}
.category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(245,183,10,0.2)}
.category-card .card-bg{position:absolute;inset:0;background:url('/assets/images/coverpic/cover-1.png') center center/cover no-repeat;opacity:0.35;transition:var(--transition)}
.category-card:hover .card-bg{opacity:0.45;transform:scale(1.05)}
.category-card .card-overlay{position:absolute;inset:0;background:linear-gradient(0deg,rgba(11,25,41,0.92) 0%,rgba(11,25,41,0.30) 60%,rgba(11,25,41,0.10) 100%)}
.category-card .card-body{position:relative;z-index:2;padding:28px}
.category-card .card-badge{display:inline-block;background:var(--accent);color:var(--primary);font-size:12px;font-weight:700;padding:2px 12px;border-radius:20px;margin-bottom:12px;letter-spacing:0.3px}
.category-card h3{font-size:22px;font-weight:700;color:var(--text-light);margin-bottom:8px}
.category-card p{font-size:14px;color:var(--text-muted);line-height:1.6;margin-bottom:16px;max-width:90%}
.category-card .card-link{color:var(--accent);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:8px;transition:var(--transition)}
.category-card .card-link i{transition:var(--transition)}
.category-card:hover .card-link i{transform:translateX(4px)}
.category-card:nth-child(2) .card-bg{background-image:url('/assets/images/coverpic/cover-2.png')}
@media(max-width:768px){
  .category-grid{grid-template-columns:1fr;gap:20px}
  .category-card{min-height:220px}
  .category-card .card-body{padding:20px}
  .category-card h3{font-size:19px}
}
/* ===== CMS 资讯列表 ===== */
.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.news-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border-color);display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(245,183,10,0.15)}
.news-card .card-img{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--primary-light)}
.news-card .card-img img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.news-card:hover .card-img img{transform:scale(1.06)}
.news-card .card-img .img-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary-light),var(--primary-lighter))}
.news-card .card-img .img-placeholder i{font-size:40px;color:rgba(245,183,10,0.2)}
.news-card .card-img .cat-tag{position:absolute;top:12px;left:12px;background:var(--accent);color:var(--primary);font-size:11px;font-weight:700;padding:2px 12px;border-radius:20px;letter-spacing:0.3px;z-index:2}
.news-card .card-img .date-tag{position:absolute;bottom:12px;right:12px;background:rgba(0,0,0,0.6);color:#fff;font-size:12px;padding:3px 12px;border-radius:20px;backdrop-filter:blur(4px);z-index:2}
.news-card .card-content{padding:20px;flex:1;display:flex;flex-direction:column}
.news-card .card-content h3{font-size:17px;font-weight:700;color:var(--text-dark);margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .card-content p{font-size:14px;color:var(--text-secondary);line-height:1.6;margin-bottom:16px;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card .card-footer{display:flex;justify-content:space-between;align-items:center;padding-top:14px;border-top:1px solid var(--border-color);margin-top:auto}
.news-card .card-footer .read-more{font-size:13px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:6px;transition:var(--transition)}
.news-card .card-footer .read-more i{transition:var(--transition)}
.news-card .card-footer .read-more:hover i{transform:translateX(4px)}
.news-empty{grid-column:1/-1;text-align:center;padding:48px 24px;color:var(--text-muted);background:var(--bg-card);border-radius:var(--radius);border:1px dashed var(--border-color)}
.news-empty i{font-size:40px;display:block;margin-bottom:16px;color:var(--border-color)}
@media(max-width:520px){
  .news-grid{grid-template-columns:1fr}
}
/* ===== 数据板块 ===== */
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.data-card{background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius);padding:32px 20px;text-align:center;transition:var(--transition);backdrop-filter:blur(6px)}
.data-card:hover{transform:translateY(-4px);border-color:rgba(245,183,10,0.2);box-shadow:0 8px 32px rgba(0,0,0,0.2)}
.data-card .icon{font-size:32px;color:var(--accent);margin-bottom:16px}
.data-card .num{font-size:38px;font-weight:900;color:var(--text-light);line-height:1.2;letter-spacing:-0.5px}
.data-card .num span{color:var(--accent)}
.data-card .label{font-size:14px;color:var(--text-muted);margin-top:8px;letter-spacing:0.3px}
@media(max-width:768px){
  .data-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .data-card{padding:24px 16px}
  .data-card .num{font-size:30px}
}
@media(max-width:520px){
  .data-grid{grid-template-columns:1fr 1fr;gap:12px}
}
/* ===== 特色/流程板块 ===== */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:var(--bg-card);border-radius:var(--radius);padding:32px 24px;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border-color);position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--danger));opacity:0;transition:var(--transition)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.feature-card:hover::before{opacity:1}
.feature-card .step{position:absolute;top:16px;right:20px;font-size:48px;font-weight:900;color:rgba(245,183,10,0.06);line-height:1;pointer-events:none}
.feature-card .icon{font-size:28px;color:var(--accent);margin-bottom:18px;width:52px;height:52px;display:flex;align-items:center;justify-content:center;background:rgba(245,183,10,0.08);border-radius:12px}
.feature-card h3{font-size:18px;font-weight:700;color:var(--text-dark);margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-secondary);line-height:1.7}
@media(max-width:768px){
  .feature-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .feature-card{padding:24px 18px}
}
@media(max-width:520px){
  .feature-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-card);border-radius:var(--radius-sm);border:1px solid var(--border-color);overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:rgba(245,183,10,0.15);box-shadow:var(--shadow)}
.faq-item.active{border-color:rgba(245,183,10,0.25)}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:18px 24px;cursor:pointer;font-weight:600;font-size:16px;color:var(--text-dark);transition:var(--transition);gap:16px}
.faq-q:hover{color:var(--accent)}
.faq-q i{color:var(--accent);font-size:14px;transition:var(--transition);flex-shrink:0}
.faq-item.active .faq-q i{transform:rotate(180deg)}
.faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:all 0.35s ease}
.faq-item.active .faq-a{max-height:400px;padding:0 24px 20px}
.faq-a p{font-size:15px;color:var(--text-secondary);line-height:1.8}
@media(max-width:768px){
  .faq-q{padding:14px 18px;font-size:15px}
  .faq-item.active .faq-a{padding:0 18px 16px}
}
/* ===== CTA ===== */
.cta-section{background:var(--bg-dark);position:relative;overflow:hidden}
.cta-section .cta-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') center center/cover no-repeat;opacity:0.15;mix-blend-mode:overlay}
.cta-section .container{position:relative;z-index:2;text-align:center;padding:80px 24px}
.cta-section h2{font-size:36px;font-weight:800;color:var(--text-light);margin-bottom:16px}
.cta-section p{font-size:18px;color:var(--text-muted);max-width:560px;margin:0 auto 32px;line-height:1.7}
.cta-section .cta-btn{display:inline-flex;align-items:center;gap:12px;background:var(--accent);color:var(--primary);padding:16px 44px;border-radius:var(--radius-sm);font-weight:700;font-size:18px;transition:var(--transition);box-shadow:0 4px 24px rgba(245,183,10,0.25)}
.cta-section .cta-btn:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 8px 40px rgba(245,183,10,0.35)}
.cta-section .cta-btn i{transition:var(--transition)}
.cta-section .cta-btn:hover i{transform:translateX(4px)}
@media(max-width:768px){
  .cta-section .container{padding:56px 16px}
  .cta-section h2{font-size:26px}
  .cta-section p{font-size:16px}
  .cta-section .cta-btn{width:100%;justify-content:center}
}
/* ===== 页脚 ===== */
.site-footer{background:var(--primary);border-top:1px solid rgba(255,255,255,0.04);padding:48px 0 32px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:36px}
.footer-brand .logo{font-size:22px;font-weight:800;color:var(--accent);margin-bottom:12px;display:inline-block}
.footer-brand p{font-size:14px;color:var(--text-muted);line-height:1.7;max-width:300px}
.footer-brand .social{display:flex;gap:12px;margin-top:18px}
.footer-brand .social a{width:38px;height:38px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(255,255,255,0.06);color:var(--text-muted);transition:var(--transition);font-size:16px}
.footer-brand .social a:hover{background:var(--accent);color:var(--primary);transform:translateY(-2px)}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text-light);margin-bottom:16px;letter-spacing:0.5px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:var(--text-muted);transition:var(--transition);display:inline-flex;align-items:center;gap:6px}
.footer-col ul li a:hover{color:var(--accent);transform:translateX(3px)}
.footer-col ul li a i{font-size:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.04);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:13px;color:var(--text-muted)}
.footer-bottom .footer-links{display:flex;gap:20px}
.footer-bottom .footer-links a{font-size:13px;color:var(--text-muted);transition:var(--transition)}
.footer-bottom .footer-links a:hover{color:var(--accent)}
@media(max-width:768px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1/-1}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;text-align:center}
}
/* ===== 工具类 ===== */
.text-center{text-align:center}
.mt-16{margin-top:16px}
.mt-24{margin-top:24px}
.mt-32{margin-top:32px}
.mb-16{margin-bottom:16px}
.mb-24{margin-bottom:24px}
/* ===== 滚动动画 ===== */
.fade-up{opacity:0;transform:translateY(24px);transition:opacity 0.6s ease,transform 0.6s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}

/* roulang page: article */
/* ===== Design Variables ===== */
:root {
  --primary: #6c5ce7;
  --primary-dark: #5a4bd1;
  --primary-light: #a29bfe;
  --secondary: #fd79a8;
  --accent: #fdcb6e;
  --bg-dark: #0a0a1a;
  --bg-card: #12122a;
  --bg-section: #0f0f25;
  --bg-light: #1a1a3e;
  --text-light: #f0f0ff;
  --text-muted: #8888aa;
  --text-dim: #555577;
  --border-color: #2a2a5a;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 12px rgba(108,92,231,0.12);
  --shadow-md: 0 8px 32px rgba(108,92,231,0.18);
  --shadow-lg: 0 16px 56px rgba(108,92,231,0.25);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
  --container-w: 1200px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--secondary); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }

/* ===== Header / Top Bar ===== */
.top-bar {
  background: rgba(10,10,26,0.95);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.top-bar .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.top-bar .domain-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg-card); padding: 4px 14px; border-radius: 20px;
  border: 1px solid var(--border-color); font-size: 0.8rem;
}
.top-bar .domain-badge i { color: var(--primary-light); font-size: 0.7rem; }
.top-bar .top-actions { display: flex; align-items: center; gap: 16px; }
.top-bar .top-actions a { color: var(--text-muted); font-size: 0.85rem; }
.top-bar .top-actions a:hover { color: var(--primary-light); }

/* ===== Main Navigation ===== */
.main-nav {
  background: rgba(10,10,26,0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  position: sticky; top: 0; z-index: 1000;
  padding: 0;
}
.main-nav .container { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.nav-brand .logo {
  font-size: 1.6rem; font-weight: 800;
  color: var(--text-light); display: flex; align-items: center; gap: 10px;
  letter-spacing: 0.5px;
}
.nav-brand .logo i { color: var(--primary-light); font-size: 1.4rem; }
.nav-brand .logo:hover { color: var(--primary-light); }
.nav-menu { display: flex; align-items: center; gap: 6px; }
.nav-menu a {
  padding: 8px 18px; border-radius: var(--radius-sm);
  color: var(--text-muted); font-size: 0.95rem; font-weight: 500;
  transition: var(--transition); display: flex; align-items: center; gap: 8px;
  position: relative;
}
.nav-menu a i { font-size: 0.85rem; }
.nav-menu a:hover, .nav-menu a.active { color: var(--text-light); background: rgba(108,92,231,0.15); }
.nav-menu a.active::after {
  content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
  width: 20px; height: 3px; background: var(--primary-light); border-radius: 4px;
}
.nav-menu a.nav-cta {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff; padding: 8px 24px; border-radius: 20px; font-weight: 600;
  box-shadow: 0 4px 20px rgba(108,92,231,0.3);
}
.nav-menu a.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(108,92,231,0.45); }
.nav-menu a.nav-cta::after { display: none; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 26px; height: 2px; background: var(--text-light); border-radius: 4px; transition: var(--transition); }

/* ===== Article Hero Banner ===== */
.article-hero {
  position: relative;
  padding: 80px 0 60px;
  background: var(--bg-section);
  border-bottom: 1px solid var(--border-color);
  overflow: hidden;
}
.article-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity: 0.10;
  z-index: 0;
}
.article-hero .container { position: relative; z-index: 1; }
.article-hero .breadcrumb {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.9rem; color: var(--text-muted); margin-bottom: 20px;
  flex-wrap: wrap;
}
.article-hero .breadcrumb a { color: var(--text-muted); }
.article-hero .breadcrumb a:hover { color: var(--primary-light); }
.article-hero .breadcrumb span { color: var(--text-dim); }
.article-hero h1 {
  font-size: 2.6rem; font-weight: 800; line-height: 1.3;
  color: var(--text-light); margin-bottom: 16px;
  max-width: 900px;
}
.article-hero .meta-line {
  display: flex; align-items: center; gap: 24px;
  color: var(--text-muted); font-size: 0.95rem; flex-wrap: wrap;
}
.article-hero .meta-line i { margin-right: 6px; color: var(--primary-light); }
.article-hero .meta-line .category-tag {
  display: inline-block; padding: 4px 16px; border-radius: 20px;
  background: rgba(108,92,231,0.2); color: var(--primary-light);
  font-size: 0.85rem; font-weight: 500; border: 1px solid rgba(108,92,231,0.3);
}

/* ===== Article Content ===== */
.article-main {
  padding: 60px 0 80px;
  background: var(--bg-dark);
}
.article-layout {
  display: grid; grid-template-columns: 1fr 320px; gap: 48px;
  align-items: start;
}
.article-body {
  background: var(--bg-card); border-radius: var(--radius-md);
  padding: 48px; border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}
.article-body .content {
  color: var(--text-light); line-height: 1.9;
  font-size: 1.05rem;
}
.article-body .content p { margin-bottom: 1.4em; }
.article-body .content h2, .article-body .content h3 {
  color: var(--text-light); margin-top: 1.8em; margin-bottom: 0.8em;
  font-weight: 700;
}
.article-body .content h2 { font-size: 1.7rem; }
.article-body .content h3 { font-size: 1.3rem; }
.article-body .content ul, .article-body .content ol {
  margin-bottom: 1.4em; padding-left: 1.6em;
}
.article-body .content li { margin-bottom: 0.5em; list-style: disc; }
.article-body .content ol li { list-style: decimal; }
.article-body .content a { color: var(--primary-light); text-decoration: underline; }
.article-body .content a:hover { color: var(--secondary); }
.article-body .content blockquote {
  border-left: 4px solid var(--primary); padding: 16px 24px;
  background: rgba(108,92,231,0.08); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.4em 0; color: var(--text-muted); font-style: italic;
}
.article-body .content code {
  background: rgba(108,92,231,0.15); padding: 2px 10px; border-radius: 4px;
  font-size: 0.9em; color: var(--accent);
}
.article-body .content img {
  border-radius: var(--radius-sm); margin: 1.6em 0;
  box-shadow: var(--shadow-sm);
}
.article-body .content .cover-img-wrap {
  margin: 1.6em 0; border-radius: var(--radius-sm); overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.article-body .content .cover-img-wrap img { margin: 0; border-radius: 0; box-shadow: none; }
.article-body .content figcaption {
  text-align: center; font-size: 0.85rem; color: var(--text-dim); margin-top: 8px;
}

/* ===== Article Sidebar ===== */
.article-sidebar { display: flex; flex-direction: column; gap: 28px; }
.sidebar-card {
  background: var(--bg-card); border-radius: var(--radius-md);
  padding: 28px; border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}
.sidebar-card h3 {
  font-size: 1.1rem; font-weight: 700; color: var(--text-light);
  margin-bottom: 16px; padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
  display: flex; align-items: center; gap: 10px;
}
.sidebar-card h3 i { color: var(--primary-light); }
.sidebar-card .related-item {
  display: flex; gap: 14px; padding: 12px 0;
  border-bottom: 1px solid rgba(42,42,90,0.4);
  align-items: center;
}
.sidebar-card .related-item:last-child { border-bottom: none; padding-bottom: 0; }
.sidebar-card .related-item .ri-img {
  width: 72px; height: 54px; border-radius: var(--radius-sm);
  object-fit: cover; flex-shrink: 0;
  background: var(--bg-light);
}
.sidebar-card .related-item .ri-info { flex: 1; min-width: 0; }
.sidebar-card .related-item .ri-info a {
  color: var(--text-light); font-size: 0.92rem; font-weight: 500;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  line-height: 1.4;
}
.sidebar-card .related-item .ri-info a:hover { color: var(--primary-light); }
.sidebar-card .related-item .ri-info .ri-date {
  font-size: 0.78rem; color: var(--text-dim); margin-top: 4px;
  display: block;
}
.sidebar-cta {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: none; text-align: center;
}
.sidebar-cta h3 { border-bottom-color: rgba(255,255,255,0.2); color: #fff; }
.sidebar-cta h3 i { color: var(--accent); }
.sidebar-cta p { color: rgba(255,255,255,0.85); font-size: 0.95rem; margin-bottom: 20px; }
.sidebar-cta .btn-cta {
  display: inline-block; padding: 12px 36px; border-radius: 30px;
  background: #fff; color: var(--primary); font-weight: 700;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2); transition: var(--transition);
}
.sidebar-cta .btn-cta:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); }

/* ===== Tags ===== */
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.tag-list a {
  display: inline-block; padding: 4px 14px; border-radius: 20px;
  background: rgba(108,92,231,0.1); border: 1px solid var(--border-color);
  color: var(--text-muted); font-size: 0.82rem; transition: var(--transition);
}
.tag-list a:hover { background: rgba(108,92,231,0.2); color: var(--primary-light); border-color: var(--primary); }

/* ===== Article Nav (Prev/Next) ===== */
.article-nav {
  display: flex; justify-content: space-between; gap: 20px;
  margin-top: 40px; padding-top: 32px;
  border-top: 1px solid var(--border-color);
  flex-wrap: wrap;
}
.article-nav a {
  display: flex; align-items: center; gap: 12px;
  color: var(--text-muted); font-size: 0.95rem;
  padding: 12px 20px; border-radius: var(--radius-sm);
  background: var(--bg-light); transition: var(--transition);
  max-width: 48%;
}
.article-nav a:hover { color: var(--text-light); background: rgba(108,92,231,0.15); }
.article-nav a i { font-size: 0.85rem; color: var(--primary-light); }
.article-nav .an-next { text-align: right; }

/* ===== Not Found ===== */
.not-found-article {
  text-align: center; padding: 80px 24px;
  background: var(--bg-card); border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}
.not-found-article i { font-size: 4rem; color: var(--text-dim); margin-bottom: 20px; }
.not-found-article h2 { font-size: 1.8rem; margin-bottom: 12px; color: var(--text-light); }
.not-found-article p { color: var(--text-muted); margin-bottom: 24px; font-size: 1.05rem; }
.not-found-article .btn-back {
  display: inline-block; padding: 12px 36px; border-radius: 30px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff; font-weight: 600; box-shadow: 0 4px 20px rgba(108,92,231,0.3);
  transition: var(--transition);
}
.not-found-article .btn-back:hover { transform: translateY(-3px); box-shadow: 0 8px 32px rgba(108,92,231,0.45); }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-section); border-top: 1px solid var(--border-color);
  padding: 60px 0 30px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { font-size: 1.5rem; font-weight: 800; color: var(--text-light); display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand .logo i { color: var(--primary-light); }
.footer-brand p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.7; margin-bottom: 20px; }
.footer-brand .social { display: flex; gap: 14px; }
.footer-brand .social a {
  width: 42px; height: 42px; border-radius: 50%;
  background: var(--bg-card); border: 1px solid var(--border-color);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 1.1rem; transition: var(--transition);
}
.footer-brand .social a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-3px); }
.footer-col h4 { font-size: 1.05rem; font-weight: 700; color: var(--text-light); margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: var(--text-muted); font-size: 0.92rem; display: flex; align-items: center; gap: 8px; }
.footer-col ul li a i { font-size: 0.6rem; color: var(--text-dim); }
.footer-col ul li a:hover { color: var(--primary-light); }
.footer-bottom {
  border-top: 1px solid var(--border-color); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px; font-size: 0.85rem; color: var(--text-dim);
}
.footer-bottom .footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-bottom .footer-links a { color: var(--text-muted); font-size: 0.85rem; }
.footer-bottom .footer-links a:hover { color: var(--primary-light); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-body { padding: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .top-bar .container { flex-direction: column; align-items: flex-start; gap: 6px; }
  .top-bar .top-actions { width: 100%; justify-content: flex-start; }
  .nav-menu { display: none; flex-direction: column; background: var(--bg-card); position: absolute; top: 70px; left: 0; right: 0; padding: 16px; border-bottom: 1px solid var(--border-color); gap: 4px; }
  .nav-menu.open { display: flex; }
  .nav-menu a { width: 100%; padding: 12px 16px; }
  .nav-menu a.active::after { display: none; }
  .nav-toggle { display: flex; }
  .article-hero { padding: 40px 0 36px; }
  .article-hero h1 { font-size: 1.8rem; }
  .article-hero .meta-line { gap: 14px; font-size: 0.85rem; }
  .article-body { padding: 24px; }
  .article-body .content { font-size: 0.98rem; }
  .article-body .content h2 { font-size: 1.4rem; }
  .article-body .content h3 { font-size: 1.15rem; }
  .article-nav { flex-direction: column; }
  .article-nav a { max-width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .sidebar-card .related-item .ri-img { width: 60px; height: 45px; }
}
@media (max-width: 520px) {
  .article-hero h1 { font-size: 1.5rem; }
  .article-body { padding: 16px; }
  .article-body .content { font-size: 0.92rem; }
  .article-body .content h2 { font-size: 1.25rem; }
  .nav-brand .logo { font-size: 1.3rem; }
  .nav-menu a { font-size: 0.9rem; padding: 10px 14px; }
  .sidebar-card { padding: 20px; }
  .not-found-article { padding: 40px 16px; }
  .not-found-article i { font-size: 3rem; }
  .not-found-article h2 { font-size: 1.4rem; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6c3bf1;
            --primary-dark: #5128c7;
            --primary-light: #8b6bf7;
            --primary-gradient: linear-gradient(135deg, #6c3bf1 0%, #f72585 100%);
            --accent: #f72585;
            --accent-dark: #d91c72;
            --bg-dark: #0d0d1a;
            --bg-darker: #080812;
            --bg-card: #15152a;
            --bg-card-hover: #1e1e3a;
            --bg-section: #0f0f20;
            --bg-section-alt: #13132a;
            --text-light: #f0f0ff;
            --text-main: #d0d0e8;
            --text-muted: #8888b0;
            --text-dim: #5c5c80;
            --border-color: #2a2a50;
            --border-light: #3a3a66;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-sm: 0 2px 12px rgba(108, 59, 241, 0.15);
            --shadow-md: 0 8px 32px rgba(108, 59, 241, 0.2);
            --shadow-lg: 0 16px 56px rgba(108, 59, 241, 0.25);
            --shadow-glow: 0 0 40px rgba(108, 59, 241, 0.3);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-w: 1240px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-dark);
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: #fff;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        ::selection {
            background: var(--primary);
            color: #fff;
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(13, 13, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(42, 42, 80, 0.5);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .site-header.scrolled {
            background: rgba(13, 13, 26, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
        }
        .main-nav {
            height: var(--header-h);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .nav-brand {
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }
        .nav-brand .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-brand .logo i {
            -webkit-text-fill-color: initial;
            color: var(--primary-light);
            font-size: 28px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-menu a {
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            transition: all var(--transition);
            position: relative;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-menu a i {
            font-size: 15px;
            opacity: 0.7;
        }
        .nav-menu a:hover {
            color: #fff;
            background: rgba(108, 59, 241, 0.15);
        }
        .nav-menu a.active {
            color: #fff;
            background: rgba(108, 59, 241, 0.2);
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 30px;
            height: 3px;
            border-radius: 4px;
            background: var(--primary-gradient);
        }
        .nav-menu a.nav-cta {
            background: var(--primary-gradient);
            color: #fff !important;
            font-weight: 600;
            padding: 10px 24px;
            border-radius: var(--radius-md);
            box-shadow: 0 4px 20px rgba(108, 59, 241, 0.35);
        }
        .nav-menu a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(108, 59, 241, 0.5);
        }
        .nav-menu a.nav-cta::after {
            display: none !important;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px;
            border-radius: 6px;
            transition: background var(--transition);
            z-index: 1001;
        }
        .nav-toggle:hover {
            background: rgba(108, 59, 241, 0.15);
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            border-radius: 4px;
            background: var(--text-light);
            transition: all var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            padding: 140px 0 80px;
            background: var(--bg-darker);
            position: relative;
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 13, 26, 0.92) 0%, rgba(13, 13, 26, 0.6) 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 48px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .page-banner h1 span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-banner p {
            font-size: 19px;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }
        .banner-tags .tag {
            padding: 8px 22px;
            border-radius: 50px;
            background: rgba(108, 59, 241, 0.15);
            border: 1px solid rgba(108, 59, 241, 0.3);
            color: var(--primary-light);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
        }
        .banner-tags .tag:hover {
            background: rgba(108, 59, 241, 0.25);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .banner-tags .tag i {
            margin-right: 6px;
            font-size: 13px;
        }

        /* ===== Section Common ===== */
        .section {
            padding: 90px 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-dark {
            background: var(--bg-darker);
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header h2 {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }
        .section-header h2 i {
            color: var(--primary-light);
            margin-right: 10px;
        }
        .section-header p {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 580px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-header .divider {
            width: 60px;
            height: 4px;
            border-radius: 4px;
            background: var(--primary-gradient);
            margin: 18px auto 0;
        }

        /* ===== Cards Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .card-item:hover {
            transform: translateY(-6px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
        }
        .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card-item:hover .card-img img {
            transform: scale(1.05);
        }
        .card-img .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            background: var(--primary-gradient);
            color: #fff;
            box-shadow: 0 4px 16px rgba(108, 59, 241, 0.35);
        }
        .card-img .badge-hot {
            background: linear-gradient(135deg, #f72585, #ff6b6b);
        }
        .card-img .badge-new {
            background: linear-gradient(135deg, #06d6a0, #00b4d8);
        }
        .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-dim);
            margin-bottom: 10px;
        }
        .card-body .card-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .card-body .card-meta span i {
            font-size: 12px;
        }
        .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .card-body h3 a {
            color: inherit;
        }
        .card-body h3 a:hover {
            color: var(--primary-light);
        }
        .card-body p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .card-body .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }
        .card-body .card-tags .t {
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(108, 59, 241, 0.1);
            color: var(--primary-light);
            border: 1px solid rgba(108, 59, 241, 0.15);
        }
        .card-body .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-light);
            display: flex;
            align-items: center;
            gap: 8px;
            transition: gap var(--transition);
            margin-top: auto;
        }
        .card-body .card-link:hover {
            gap: 14px;
            color: #fff;
        }

        /* ===== Featured / Large Card ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 28px;
        }
        .featured-main {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .featured-main:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .featured-main .f-img {
            aspect-ratio: 21/9;
            overflow: hidden;
            position: relative;
        }
        .featured-main .f-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .featured-main:hover .f-img img {
            transform: scale(1.03);
        }
        .featured-main .f-img .badge {
            position: absolute;
            top: 18px;
            left: 18px;
            padding: 8px 22px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            background: var(--primary-gradient);
            color: #fff;
            box-shadow: 0 4px 20px rgba(108, 59, 241, 0.4);
        }
        .featured-main .f-body {
            padding: 30px;
        }
        .featured-main .f-body .f-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            font-size: 14px;
            color: var(--text-dim);
            margin-bottom: 12px;
        }
        .featured-main .f-body h3 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .featured-main .f-body h3 a {
            color: inherit;
        }
        .featured-main .f-body h3 a:hover {
            color: var(--primary-light);
        }
        .featured-main .f-body p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 18px;
        }
        .featured-side {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .featured-side .side-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }
        .featured-side .side-item:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .featured-side .side-item .num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.5;
            line-height: 1;
            flex-shrink: 0;
            min-width: 40px;
        }
        .featured-side .side-item .s-body h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }
        .featured-side .side-item .s-body h4 a {
            color: inherit;
        }
        .featured-side .side-item .s-body h4 a:hover {
            color: var(--primary-light);
        }
        .featured-side .side-item .s-body p {
            font-size: 13px;
            color: var(--text-dim);
            line-height: 1.5;
        }

        /* ===== Tag Filter ===== */
        .tag-filter {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-bottom: 48px;
        }
        .tag-filter .tf-btn {
            padding: 10px 26px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            background: rgba(108, 59, 241, 0.08);
            border: 1px solid var(--border-color);
            color: var(--text-main);
            transition: all var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .tag-filter .tf-btn:hover {
            background: rgba(108, 59, 241, 0.2);
            border-color: var(--primary);
            color: #fff;
        }
        .tag-filter .tf-btn.active {
            background: var(--primary-gradient);
            border-color: transparent;
            color: #fff;
            box-shadow: 0 4px 20px rgba(108, 59, 241, 0.35);
        }
        .tag-filter .tf-btn i {
            font-size: 13px;
        }

        /* ===== Rank / List ===== */
        .rank-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .rank-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 22px 26px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .rank-item:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
            transform: translateY(-3px);
        }
        .rank-item .rank-num {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.3;
            line-height: 1;
            flex-shrink: 0;
            min-width: 50px;
            text-align: center;
        }
        .rank-item .rank-num.top {
            opacity: 0.9;
            color: #f72585;
        }
        .rank-item .rank-body {
            flex: 1;
        }
        .rank-item .rank-body h4 {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }
        .rank-item .rank-body h4 a {
            color: inherit;
        }
        .rank-item .rank-body h4 a:hover {
            color: var(--primary-light);
        }
        .rank-item .rank-body p {
            font-size: 13px;
            color: var(--text-dim);
            line-height: 1.5;
        }
        .rank-item .rank-stat {
            display: flex;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .rank-item .rank-stat span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .rank-item .rank-stat i {
            font-size: 13px;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 840px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item.open {
            border-color: var(--primary);
        }
        .faq-q {
            padding: 20px 26px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            transition: background var(--transition);
            gap: 16px;
            user-select: none;
        }
        .faq-q:hover {
            background: rgba(108, 59, 241, 0.06);
        }
        .faq-q .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(108, 59, 241, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }
        .faq-q .faq-icon i {
            font-size: 13px;
            color: var(--primary-light);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-q .faq-icon i {
            transform: rotate(45deg);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 26px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
            padding: 0 26px 22px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: var(--bg-darker);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.1;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-section h2 span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .cta-section p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-section .cta-btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .cta-section .cta-btn {
            padding: 16px 40px;
            border-radius: var(--radius-md);
            font-size: 17px;
            font-weight: 600;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .cta-btn-primary {
            background: var(--primary-gradient);
            color: #fff !important;
            box-shadow: 0 4px 24px rgba(108, 59, 241, 0.35);
        }
        .cta-section .cta-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 40px rgba(108, 59, 241, 0.5);
        }
        .cta-section .cta-btn-secondary {
            background: rgba(108, 59, 241, 0.1);
            border: 1px solid var(--border-color);
            color: var(--text-main) !important;
        }
        .cta-section .cta-btn-secondary:hover {
            background: rgba(108, 59, 241, 0.2);
            border-color: var(--primary-light);
            color: #fff !important;
            transform: translateY(-3px);
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }
        .stat-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 36px 20px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .stat-item:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
            transform: translateY(-4px);
        }
        .stat-item .stat-num {
            font-size: 42px;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-item .stat-label {
            font-size: 15px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .stat-item .stat-icon {
            font-size: 28px;
            color: var(--primary-light);
            margin-bottom: 12px;
            opacity: 0.7;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-darker);
            border-top: 1px solid var(--border-color);
            padding: 70px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer-brand .logo i {
            -webkit-text-fill-color: initial;
            color: var(--primary-light);
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 18px;
            max-width: 360px;
        }
        .footer-brand .social {
            display: flex;
            gap: 12px;
        }
        .footer-brand .social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(108, 59, 241, 0.1);
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 17px;
            transition: all var(--transition);
        }
        .footer-brand .social a:hover {
            background: var(--primary-gradient);
            border-color: transparent;
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 4px 20px rgba(108, 59, 241, 0.3);
        }
        .footer-col h4 {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 3px;
            border-radius: 4px;
            background: var(--primary-gradient);
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
        }
        .footer-col ul li a i {
            font-size: 10px;
            color: var(--primary);
            transition: transform var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-col ul li a:hover i {
            transform: translateX(4px);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 26px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .footer-bottom p {
            font-size: 14px;
            color: var(--text-dim);
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 20px;
        }
        .footer-bottom .footer-links a {
            font-size: 13px;
            color: var(--text-dim);
            transition: color var(--transition);
        }
        .footer-bottom .footer-links a:hover {
            color: var(--primary-light);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .rank-list {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-banner h1 {
                font-size: 38px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
            .nav-menu {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: rgba(13, 13, 26, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 90px 28px 40px;
                gap: 6px;
                transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                box-shadow: -10px 0 40px rgba(0, 0, 0, 0.6);
                border-left: 1px solid var(--border-color);
                overflow-y: auto;
                align-items: stretch;
            }
            .nav-menu.open {
                right: 0;
            }
            .nav-menu a {
                padding: 14px 18px;
                font-size: 16px;
                border-radius: var(--radius-sm);
                justify-content: flex-start;
            }
            .nav-menu a.nav-cta {
                margin-top: 10px;
                text-align: center;
                justify-content: center;
            }
            .nav-toggle {
                display: flex;
            }
            .page-banner {
                padding: 120px 0 60px;
                min-height: 300px;
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .page-banner p {
                font-size: 16px;
            }
            .section {
                padding: 60px 0;
            }
            .section-header h2 {
                font-size: 28px;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .featured-main .f-body {
                padding: 20px;
            }
            .featured-main .f-body h3 {
                font-size: 20px;
            }
            .featured-side .side-item {
                padding: 18px;
                flex-direction: column;
                gap: 10px;
            }
            .featured-side .side-item .num {
                font-size: 26px;
                min-width: 30px;
            }
            .rank-item {
                padding: 18px 20px;
                flex-wrap: wrap;
                gap: 12px;
            }
            .rank-item .rank-num {
                font-size: 32px;
                min-width: 36px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item {
                padding: 26px 16px;
            }
            .stat-item .stat-num {
                font-size: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .cta-section .cta-btn {
                padding: 14px 30px;
                font-size: 15px;
            }
            .tag-filter {
                gap: 8px;
            }
            .tag-filter .tf-btn {
                padding: 8px 18px;
                font-size: 13px;
            }
            .banner-tags .tag {
                padding: 6px 16px;
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 24px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item .stat-num {
                font-size: 28px;
            }
            .card-body {
                padding: 18px;
            }
            .card-body h3 {
                font-size: 17px;
            }
            .nav-brand .logo {
                font-size: 22px;
            }
            .rank-item .rank-body h4 {
                font-size: 15px;
            }
            .faq-q {
                padding: 16px 18px;
                font-size: 15px;
            }
            .faq-a {
                font-size: 14px;
            }
            .faq-item.open .faq-a {
                padding: 0 18px 18px;
            }
        }

        /* ===== Fade in animation ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-in {
            animation: fadeUp 0.6s ease forwards;
        }
        .animate-in-d1 {
            animation-delay: 0.1s;
        }
        .animate-in-d2 {
            animation-delay: 0.2s;
        }
        .animate-in-d3 {
            animation-delay: 0.3s;
        }
        .animate-in-d4 {
            animation-delay: 0.4s;
        }