/* roulang page: index */
/* ===== 设计变量 ===== */
:root{
  --primary:#3A7BD5;
  --primary-dark:#2B5FA8;
  --primary-light:#EAF2FB;
  --accent:#FF8A3D;
  --bg-page:#F4F8FC;
  --bg-card:#FFFFFF;
  --text-heading:#1E293B;
  --text-body:#334155;
  --text-muted:#64748B;
  --border-color:#E2E8F0;
  --footer-bg:#1B2A3B;
  --empty-bg:#F8FAFC;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-badge:4px;
  --shadow-sm:0 4px 12px rgba(31,58,95,0.06);
  --shadow-hover:0 12px 28px rgba(31,58,95,0.12);
  --transition:all .25s ease;
}

/* ===== 基础 Reset ===== */
*, *::before, *::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans CN","Helvetica Neue",Arial,sans-serif;
  background:var(--bg-page);
  color:var(--text-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; height:auto; display:block; }
a{ color:var(--primary); text-decoration:none; transition:var(--transition); }
a:hover{ color:var(--primary-dark); }
ul, ol{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4,h5,h6{ margin:0 0 0.5em; color:var(--text-heading); font-weight:700; line-height:1.3; }
p{ margin:0 0 1em; }

.container-custom{ max-width:1200px; margin:0 auto; padding:0 24px; width:100%; }

/* ===== 顶部品牌行 ===== */
.site-header{
  background:#fff;
  border-bottom:1px solid var(--border-color);
  position:sticky; top:0; z-index:100;
}
.header-top{
  display:flex; align-items:center; justify-content:space-between;
  height:68px;
}
.logo-area{
  display:flex; align-items:center; gap:10px;
}
.logo-icon{
  width:38px; height:38px; border-radius:50%;
  background:var(--primary);
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:18px;
}
.logo-text{
  font-size:22px; font-weight:700; color:var(--text-heading);
  letter-spacing:1px;
}
.logo-text span{ color:var(--primary); }
.header-actions{
  display:flex; align-items:center; gap:16px;
}
.search-box{
  position:relative;
}
.search-box input{
  width:220px; height:40px; border:1px solid var(--border-color);
  border-radius:var(--radius-btn); padding:0 42px 0 14px;
  font-size:14px; background:var(--bg-page);
  transition:var(--transition);
  outline:none;
}
.search-box input:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(58,123,213,0.18);
  background:#fff;
}
.search-box i{
  position:absolute; right:14px; top:50%; transform:translateY(-50%);
  color:var(--text-muted); font-size:14px; pointer-events:none;
}
.fav-btn{
  display:inline-flex; align-items:center; gap:6px;
  height:40px; padding:0 16px; border-radius:var(--radius-btn);
  border:1px solid var(--primary); color:var(--primary);
  font-size:14px; font-weight:500; background:#fff;
  transition:var(--transition);
}
.fav-btn:hover{
  background:var(--primary-light);
  border-color:var(--primary-dark); color:var(--primary-dark);
}

/* ===== 频道导航 ===== */
.channel-nav{
  background:var(--empty-bg);
  border-top:1px solid var(--border-color);
  border-bottom:1px solid var(--border-color);
}
.channel-nav .container-custom{
  display:flex; align-items:center;
  height:48px; gap:6px;
  overflow-x:auto; scrollbar-width:none;
}
.channel-nav .container-custom::-webkit-scrollbar{ display:none; }
.channel-nav a{
  display:inline-flex; align-items:center; justify-content:center;
  padding:0 20px; height:48px;
  color:var(--text-muted); font-size:15px; font-weight:500;
  position:relative; white-space:nowrap;
  transition:var(--transition);
}
.channel-nav a:hover{
  color:var(--primary);
  background:var(--primary-light);
}
.channel-nav a.active{
  color:var(--primary);
}
.channel-nav a.active::after{
  content:''; position:absolute; left:12px; right:12px; bottom:0;
  height:3px; background:var(--primary); border-radius:2px 2px 0 0;
}

/* ===== 移动端汉堡 ===== */
.mobile-toggle{
  display:none;
  background:none; border:none; font-size:26px;
  color:var(--text-heading); cursor:pointer;
  height:40px; width:40px; border-radius:8px;
  align-items:center; justify-content:center;
}
.mobile-toggle:hover{ background:var(--bg-page); }

/* ===== Hero 区域 ===== */
.hero-section{
  position:relative;
  min-height:500px;
  display:flex; align-items:center;
  background:
    linear-gradient(90deg, rgba(244,248,252,0.92) 0%, rgba(244,248,252,0.75) 60%, rgba(234,242,251,0.55) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--border-color);
  overflow:hidden;
}
.hero-section::after{
  content:''; position:absolute; right:-80px; top:-80px;
  width:280px; height:280px; border-radius:50%;
  background:var(--primary-light); opacity:0.5; z-index:0;
}
.hero-left{
  position:relative; z-index:1;
  padding:80px 0;
}
.hero-badge{
  display:inline-flex; align-items:center; gap:8px;
  background:var(--primary-light); color:var(--primary-dark);
  font-size:13px; font-weight:500;
  padding:4px 14px; border-radius:100px;
  margin-bottom:24px;
}
.hero-badge i{ font-size:12px; }
.hero-section h1{
  font-size:40px; line-height:1.25; margin-bottom:20px;
  color:var(--text-heading);
  letter-spacing:-0.5px;
}
.hero-section h1 .brand-highlight{
  color:var(--primary); position:relative;
}
.hero-sub{
  font-size:17px; color:var(--text-muted);
  line-height:1.8; max-width:520px; margin-bottom:32px;
}
.hero-cta{
  display:flex; gap:14px; flex-wrap:wrap;
}
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:8px; padding:10px 28px; border-radius:var(--radius-btn);
  font-size:15px; font-weight:500; cursor:pointer;
  transition:var(--transition);
  border:none; outline:none; line-height:1.4;
}
.btn:focus-visible{
  box-shadow:0 0 0 3px rgba(58,123,213,0.25);
}
.btn-primary{
  background:var(--primary); color:#fff;
}
.btn-primary:hover{
  background:var(--primary-dark); color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-hover);
}
.btn-outline{
  background:#fff; color:var(--primary);
  border:1px solid var(--primary);
}
.btn-outline:hover{
  background:var(--primary-light); border-color:var(--primary-dark);
  color:var(--primary-dark);
}
.btn-accent{
  background:var(--accent); color:#fff;
}
.btn-accent:hover{
  background:#e6761f; color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-hover);
}
.hero-right{
  position:relative; z-index:1;
  display:flex; align-items:center; justify-content:center;
}
.hero-cover{
  border-radius:16px; overflow:hidden;
  box-shadow:var(--shadow-hover);
  width:420px; height:300px;
  background:#fff;
  position:relative;
}
.hero-cover img{
  width:100%; height:100%; object-fit:cover;
}

/* ===== 通用板块 ===== */
.section-block{ padding:96px 0; }
.section-block-alt{ background:#fff; }
.section-head{
  display:flex; align-items:flex-end; justify-content:space-between;
  margin-bottom:40px; flex-wrap:wrap; gap:16px;
}
.section-head-left{
  display:flex; align-items:center; gap:14px;
}
.section-bar{
  width:4px; height:28px; border-radius:2px;
  background:var(--primary);
}
.section-head h2{
  font-size:28px; margin-bottom:0;
}
.section-head .section-desc{
  color:var(--text-muted); font-size:14px;
  margin-top:4px;
}
.link-more{
  font-size:14px; font-weight:500;
  display:inline-flex; align-items:center; gap:6px;
}
.link-more i{ font-size:12px; }

/* ===== 核心卖点 / 服务卡 ===== */
.feature-grid{
  display:grid; grid-template-columns:repeat(4, 1fr);
  gap:24px;
}
.feature-card{
  background:var(--bg-card);
  border-radius:var(--radius-card);
  padding:32px 24px;
  box-shadow:var(--shadow-sm);
  transition:var(--transition);
  text-align:center;
  border:1px solid transparent;
}
.feature-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:var(--primary-light);
}
.feature-icon{
  width:56px; height:56px; border-radius:14px;
  background:var(--primary-light);
  display:flex; align-items:center; justify-content:center;
  margin:0 auto 18px;
  font-size:22px; color:var(--primary);
}
.feature-card h3{
  font-size:18px; margin-bottom:10px;
}
.feature-card p{
  font-size:14px; color:var(--text-muted);
  margin-bottom:0;
  line-height:1.7;
}

/* ===== 资讯列表（CMS 区域） ===== */
.news-list{ display:flex; flex-direction:column; gap:16px; }
.news-card{
  background:var(--bg-card);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  display:flex; align-items:center;
  padding:16px;
  transition:var(--transition);
  border:1px solid rgba(226,232,240,0.4);
}
.news-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-2px);
}
.news-thumb{
  width:180px; height:112px; border-radius:8px;
  overflow:hidden; flex-shrink:0;
  background:var(--bg-page);
  position:relative;
}
.news-thumb img{
  width:100%; height:100%; object-fit:cover;
  transition:transform .4s ease;
}
.news-card:hover .news-thumb img{ transform:scale(1.05); }
.news-info{
  flex:1; padding:0 20px;
  min-width:0;
}
.news-info h3{
  font-size:18px; margin-bottom:8px;
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
  transition:var(--transition);
}
.news-info h3 a{ color:var(--text-heading); }
.news-info h3 a:hover{ color:var(--primary); }
.news-summary{
  font-size:14px; color:var(--text-muted);
  line-height:1.6;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical;
  overflow:hidden; margin-bottom:10px;
}
.news-meta{
  display:flex; align-items:center; gap:14px;
  font-size:13px; color:var(--text-muted);
}
.badge{
  display:inline-block;
  background:var(--primary-light); color:var(--primary-dark);
  font-size:12px; padding:2px 10px; border-radius:var(--radius-badge);
  font-weight:500;
}
.badge-hot{
  background:var(--accent); color:#fff;
}
.empty-state{
  border:1px dashed #CBD5E1;
  border-radius:var(--radius-card);
  background:var(--empty-bg);
  padding:60px 20px;
  text-align:center;
  color:var(--text-muted);
  font-size:15px;
}
.empty-state i{
  font-size:38px; color:#cbd5e1; display:block; margin-bottom:12px;
}

/* ===== 精选推荐 ===== */
.recommend-layout{
  display:grid; grid-template-columns:1.2fr 1fr; gap:24px;
}
.recommend-featured{
  background:var(--bg-card);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  position:relative;
  transition:var(--transition);
}
.recommend-featured:hover{ box-shadow:var(--shadow-hover); }
.recommend-featured img{
  width:100%; height:280px; object-fit:cover;
  transition:transform .5s ease;
}
.recommend-featured:hover img{ transform:scale(1.03); }
.recommend-featured .rf-body{
  padding:24px;
}
.recommend-featured .rf-body h3{
  font-size:22px; margin-bottom:12px;
}
.recommend-featured .rf-body p{
  font-size:14px; color:var(--text-muted);
  margin-bottom:16px;
}
.recommend-list{
  display:flex; flex-direction:column; gap:16px;
}
.recommend-item{
  background:var(--bg-card);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  display:flex; gap:14px; padding:12px;
  align-items:center;
  transition:var(--transition);
}
.recommend-item:hover{ box-shadow:var(--shadow-hover); transform:translateX(4px); }
.recommend-item img{
  width:96px; height:72px; border-radius:8px;
  object-fit:cover; flex-shrink:0;
}
.recommend-item .ri-body h4{
  font-size:15px; margin-bottom:4px;
  line-height:1.4;
}
.recommend-item .ri-body span{
  font-size:12px; color:var(--text-muted);
}

/* ===== 数据统计 ===== */
.stats-section{
  background:var(--primary-dark);
  color:#fff;
}
.stats-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:24px;
  text-align:center;
}
.stat-item .stat-num{
  font-size:42px; font-weight:700;
  margin-bottom:4px;
}
.stat-item .stat-label{
  font-size:14px; opacity:0.8;
}

/* ===== 热门专题 ===== */
.topic-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:24px;
}
.topic-card{
  background:var(--bg-card);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:var(--transition);
}
.topic-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.topic-card img{
  width:100%; height:180px; object-fit:cover;
  transition:transform .5s ease;
}
.topic-card:hover img{ transform:scale(1.05); }
.topic-card-body{
  padding:20px;
}
.topic-card-body h3{ font-size:18px; margin-bottom:8px; }
.topic-card-body p{
  font-size:14px; color:var(--text-muted);
  margin-bottom:14px; line-height:1.6;
}
.topic-tag{
  display:flex; gap:8px; flex-wrap:wrap;
}
.topic-tag span{
  font-size:12px; color:var(--primary-dark);
  background:var(--primary-light);
  padding:2px 10px; border-radius:100px;
}

/* ===== FAQ ===== */
.faq-list{
  max-width:820px; margin:0 auto;
}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--border-color);
  border-radius:10px;
  margin-bottom:12px;
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{ border-color:var(--primary); }
.faq-question{
  display:flex; align-items:center; justify-content:space-between;
  padding:18px 20px;
  font-size:16px; font-weight:600;
  color:var(--text-heading);
  cursor:pointer;
  background:none; border:none; width:100%;
  font-family:inherit; text-align:left;
}
.faq-question i{
  font-size:14px; color:var(--primary);
  transition:transform .3s ease;
}
.faq-item.active .faq-question i{
  transform:rotate(45deg);
}
.faq-answer{
  padding:0 20px 20px;
  font-size:14px; color:var(--text-muted);
  line-height:1.8;
  display:none;
}
.faq-item.active .faq-answer{ display:block; }

/* ===== CTA ===== */
.cta-section{
  background:var(--primary-light);
}
.cta-box{
  background:#fff;
  border-radius:16px;
  padding:56px 40px;
  text-align:center;
  box-shadow:var(--shadow-sm);
  max-width:900px; margin:0 auto;
}
.cta-box h2{
  font-size:28px; margin-bottom:14px;
}
.cta-box p{
  color:var(--text-muted); font-size:16px;
  max-width:600px; margin:0 auto 32px;
}
.cta-buttons{
  display:flex; gap:14px; justify-content:center; flex-wrap:wrap;
}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--footer-bg);
  color:rgba(255,255,255,0.72);
  padding-top:56px;
}
.footer-grid{
  display:grid; grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:40px; padding-bottom:40px;
}
.footer-brand .logo-text{
  color:#fff; margin-bottom:12px; display:block;
  font-size:22px;
}
.footer-brand .logo-text span{ color:var(--primary); }
.footer-brand .logo-icon{
  background:var(--primary); color:#fff;
  width:34px; height:34px; font-size:15px;
  border-radius:50%; display:inline-flex;
  align-items:center; justify-content:center;
  margin-right:10px;
}
.footer-brand p{
  font-size:14px; line-height:1.8;
  color:rgba(255,255,255,0.6);
  margin-top:14px;
  max-width:260px;
}
.footer-col h4{
  color:#fff; font-size:16px; margin-bottom:18px;
  font-weight:600;
}
.footer-col ul li{
  margin-bottom:10px;
}
.footer-col ul li a{
  color:rgba(255,255,255,0.65);
  font-size:14px;
  transition:var(--transition);
}
.footer-col ul li a:hover{
  color:var(--primary);
  padding-left:4px;
}
.footer-contact li{
  display:flex; align-items:flex-start; gap:10px;
  font-size:14px; color:rgba(255,255,255,0.65);
  margin-bottom:14px;
  line-height:1.6;
}
.footer-contact li i{
  color:var(--primary); margin-top:2px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.1);
  padding:20px 0;
  display:flex; align-items:center; justify-content:space-between;
  font-size:13px; color:rgba(255,255,255,0.5);
  flex-wrap:wrap; gap:10px;
}

/* ===== 文章页样式 ===== */
.article-breadcrumb{
  padding:24px 0 0;
  font-size:14px;
  color:var(--text-muted);
}
.article-breadcrumb a{ color:var(--text-muted); }
.article-breadcrumb a:hover{ color:var(--primary); }
.article-breadcrumb i{
  margin:0 10px; font-size:12px;
  color:#cbd5e1;
}
.article-header{
  padding:32px 0 24px;
  max-width:860px; margin:0 auto;
}
.article-header .badge{ margin-bottom:16px; }
.article-header h1{
  font-size:36px; line-height:1.4;
  margin-bottom:20px;
}
.article-meta{
  display:flex; flex-wrap:wrap; gap:20px;
  font-size:13px; color:var(--text-muted);
  padding-bottom:24px;
  border-bottom:1px solid var(--border-color);
}
.article-meta span{ display:inline-flex; align-items:center; gap:6px; }
.article-meta span i{ font-size:13px; }
.article-summary{
  background:var(--empty-bg);
  border-radius:8px;
  padding:18px 20px;
  font-size:15px;
  color:var(--text-muted);
  line-height:1.8;
  margin-top:24px;
  border-left:3px solid var(--primary);
}
.article-body{
  max-width:760px; margin:0 auto;
  padding:40px 0 24px;
}
.article-body p{
  font-size:16px; line-height:1.9;
  margin-bottom:20px;
  color:var(--text-body);
}
.article-body h2{
  font-size:22px; margin-top:32px; margin-bottom:16px;
  color:var(--text-heading);
}
.article-body h3{
  font-size:17px; margin-top:24px; margin-bottom:12px;
  color:var(--text-heading);
}
.article-body blockquote{
  border-left:4px solid var(--primary);
  background:var(--empty-bg);
  border-radius:0 8px 8px 0;
  padding:16px 20px;
  margin:24px 0;
  color:var(--text-muted);
}
.article-body img{
  border-radius:8px;
  margin:24px auto;
}
.article-image-caption{
  text-align:center; font-size:13px;
  color:var(--text-muted); margin-top:-12px; margin-bottom:24px;
}
.article-tags{
  display:flex; gap:10px; flex-wrap:wrap;
  padding:32px 0;
  border-top:1px solid var(--border-color);
  margin-top:32px;
}
.article-tags .tag{
  background:var(--empty-bg);
  color:var(--text-muted);
  padding:4px 14px; border-radius:100px;
  font-size:13px;
  border:1px solid var(--border-color);
  transition:var(--transition);
}
.article-tags .tag:hover{
  border-color:var(--primary); color:var(--primary);
}
.article-nav{
  display:flex; justify-content:space-between;
  align-items:center;
  padding:24px 0 48px;
  gap:16px;
  flex-wrap:wrap;
}

/* ===== 分类页 ===== */
.category-hero{
  position:relative;
  padding:72px 0;
  background:
    linear-gradient(95deg, rgba(244,248,252,0.94) 0%, rgba(244,248,252,0.82) 55%, rgba(234,242,251,0.6) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--border-color);
}
.category-hero .cat-badge{
  display:inline-flex; align-items:center; gap:8px;
  background:var(--primary); color:#fff;
  font-size:13px;
  padding:4px 16px; border-radius:100px;
  margin-bottom:16px;
}
.category-hero h1{
  font-size:38px; margin-bottom:14px;
}
.category-hero .cat-sub{
  font-size:16px; color:var(--text-muted);
  max-width:680px; line-height:1.8;
}

/* 分类1 图文列表 */
.cat1-list{
  display:flex; flex-direction:column; gap:20px;
}
.cat1-card{
  display:flex; align-items:center;
  background:#fff; border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm); overflow:hidden;
  transition:var(--transition);
}
.cat1-card:hover{ box-shadow:var(--shadow-hover); }
.cat1-card img{
  width:260px; height:170px; object-fit:cover;
  flex-shrink:0;
}
.cat1-card .cc-body{
  padding:24px;
}
.cat1-card .cc-body h3{
  font-size:20px; margin-bottom:8px;
}
.cat1-card .cc-body p{
  color:var(--text-muted); font-size:14px;
  margin-bottom:12px;
  line-height:1.6;
}
.cat1-card .cc-meta{
  font-size:13px; color:var(--text-muted);
  display:flex; gap:16px;
}

/* 分类2 网格 */
.cat2-feature{
  display:grid; grid-template-columns:1.2fr 1fr; gap:24px;
  margin-bottom:40px;
}
.cat2-feature-main{
  position:relative; border-radius:var(--radius-card);
  overflow:hidden; box-shadow:var(--shadow-sm);
  min-height:320px;
}
.cat2-feature-main img{
  width:100%; height:100%; object-fit:cover;
  position:absolute; inset:0;
}
.cat2-feature-main .fm-overlay{
  position:absolute; left:0; right:0; bottom:0;
  padding:100px 24px 24px;
  background:linear-gradient(transparent, rgba(0,0,0,0.75));
  color:#fff;
}
.cat2-feature-main .fm-overlay h3{
  color:#fff; font-size:24px; margin-bottom:8px;
}
.cat2-feature-main .fm-overlay p{
  color:rgba(255,255,255,0.85); font-size:14px;
  margin-bottom:12px;
}
.cat2-feature-main .fm-overlay .badge{
  background:rgba(255,255,255,0.2); color:#fff;
  backdrop-filter:blur(4px);
}
.cat2-side{
  display:flex; flex-direction:column; gap:16px;
}
.cat2-side .cat2-mini{
  flex:1; display:flex; gap:14px;
  background:#fff; border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm); padding:12px;
  transition:var(--transition);
}
.cat2-side .cat2-mini:hover{ box-shadow:var(--shadow-hover); }
.cat2-mini img{
  width:100px; height:80px; object-fit:cover;
  border-radius:8px;
}
.cat2-mini h4{
  font-size:15px; margin-bottom:4px;
  line-height:1.4;
}
.cat2-mini span{
  font-size:12px; color:var(--text-muted);
}
.cat2-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:24px;
}
.cat2-grid-card{
  background:#fff; border-radius:var(--radius-card);
  overflow:hidden; box-shadow:var(--shadow-sm);
  transition:var(--transition);
}
.cat2-grid-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.cat2-grid-card img{
  width:100%; height:160px; object-fit:cover;
}
.cat2-grid-card .gc-body{ padding:18px; }
.cat2-grid-card .gc-body h3{
  font-size:16px; margin-bottom:8px;
}
.cat2-grid-card .gc-body p{
  font-size:13px; color:var(--text-muted);
  line-height:1.6; margin-bottom:0;
}

/* ===== 响应式 ===== */
@media screen and (max-width:1024px){
  .feature-grid{ grid-template-columns:repeat(2,1fr); }
  .topic-grid{ grid-template-columns:repeat(2,1fr); }
  .recommend-layout{ grid-template-columns:1fr; }
  .cat2-grid{ grid-template-columns:repeat(2,1fr); }
  .cat2-feature{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .hero-section{ min-height:440px; }
  .hero-section h1{ font-size:34px; }
  .hero-cover{ width:340px; height:240px; }
}

@media screen and (max-width:768px){
  .section-block{ padding:56px 0; }
  .header-top{ height:60px; }
  .search-box{ display:none; }
  .mobile-toggle{ display:flex; }
  .fav-btn{ display:none; }
  .hero-section{
    min-height:auto;
    padding:40px 0;
    background:
      linear-gradient(180deg, rgba(244,248,252,0.96) 0%, rgba(244,248,252,0.85) 100%),
      url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    text-align:center;
  }
  .hero-left{ padding:24px 0; }
  .hero-section h1{ font-size:28px; }
  .hero-right{ display:none; }
  .hero-cta{ justify-content:center; }
  .news-card{ flex-direction:column; padding:12px; }
  .news-thumb{ width:100%; height:160px; margin-bottom:12px; }
  .news-info{ padding:0; }
  .news-info h3{ white-space:normal; }
  .stats-grid{ grid-template-columns:repeat(2,1fr); }
  .stats-section .stat-num{ font-size:32px; }
  .cat1-card{ flex-direction:column; }
  .cat1-card img{ width:100%; height:180px; }
  .article-header h1{ font-size:28px; }
  .article-header, .article-body{ padding-left:16px; padding-right:16px; }
  .article-meta{ gap:12px; }
  .article-nav{ flex-direction:column; align-items:flex-start; }
  .footer-grid{ grid-template-columns:1fr; gap:32px; }
  .footer-bottom{ flex-direction:column; text-align:center; }
  .cta-box{ padding:40px 20px; }
  .cta-buttons{ flex-direction:column; }
  .cta-buttons .btn{ width:100%; }
}

@media screen and (max-width:520px){
  .feature-grid{ grid-template-columns:1fr; }
  .topic-grid{ grid-template-columns:1fr; }
  .cat2-grid{ grid-template-columns:1fr; }
  .hero-cta{ flex-direction:column; }
  .hero-cta .btn{ width:100%; }
  .section-head{ flex-direction:column; align-items:flex-start; }
  .channel-nav a{ padding:0 14px; }
  .category-hero h1{ font-size:30px; }
  .category-hero{ padding:48px 0; }
}

/* roulang page: category1 */
:root{
  --primary:#3A7BD5;
  --primary-dark:#2B5FA8;
  --primary-light:#EAF2FB;
  --accent:#FF8A3D;
  --accent-dark:#E6731F;
  --bg:#F4F8FC;
  --card-bg:#FFFFFF;
  --text:#1E293B;
  --text-body:#334155;
  --text-muted:#64748B;
  --border:#E2E8F0;
  --footer-bg:#1B2A3B;
  --radius:12px;
  --radius-sm:8px;
  --radius-xs:4px;
  --shadow:0 4px 12px rgba(31,58,95,0.06);
  --shadow-hover:0 12px 28px rgba(31,58,95,0.12);
  --transition:all .25s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
body{font-family:"PingFang SC","Microsoft YaHei","Source Han Sans CN","Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text-body);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:var(--transition);}
a:hover{color:var(--primary-dark);}
ul,ol{list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,textarea{font-family:inherit;}
.container-custom{max-width:1200px;margin:0 auto;padding:0 24px;}
.grid-container.container-custom{max-width:1200px;padding-right:24px;padding-left:24px;}

/* ===== Header ===== */
.site-header{background:#fff;box-shadow:0 2px 8px rgba(31,58,95,.05);position:sticky;top:0;z-index:100;}
.brand-row{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px;}
.brand-logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-icon{width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;box-shadow:0 4px 10px rgba(58,123,213,.25);}
.logo-text{font-size:24px;font-weight:700;color:var(--text);line-height:1.2;}
.logo-text span{color:var(--primary);}
.header-actions{display:flex;align-items:center;gap:16px;flex-shrink:0;}
.search-box{display:flex;align-items:center;position:relative;}
.search-box input{height:40px;width:220px;border:1px solid var(--border);border-radius:8px;padding:0 44px 0 14px;font-size:14px;outline:none;transition:var(--transition);background:#fff;}
.search-box input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(58,123,213,.15);}
.search-box button{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text-muted);font-size:15px;padding:4px;}
.collect-btn{display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 18px;border:1px solid var(--primary);border-radius:8px;font-size:14px;font-weight:600;color:var(--primary);background:#fff;transition:var(--transition);}
.collect-btn:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary-dark);}
.hamburger{display:none;width:40px;height:40px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text);font-size:18px;align-items:center;justify-content:center;transition:var(--transition);}
.hamburger:hover{border-color:var(--primary);color:var(--primary);}
.channel-nav{background:#F8FAFC;border-bottom:1px solid var(--border);height:48px;}
.channel-nav .container-custom{display:flex;gap:28px;height:48px;align-items:stretch;overflow-x:auto;overflow-y:hidden;scrollbar-width:none;}
.channel-nav .container-custom::-webkit-scrollbar{display:none;}
.channel-nav a{display:flex;align-items:center;font-size:15px;font-weight:600;color:var(--text-body);position:relative;padding:0 4px;white-space:nowrap;transition:color .2s ease,background .2s ease;}
.channel-nav a:hover{color:var(--primary-dark);}
.channel-nav a.active{color:var(--primary);}
.channel-nav a.active::after{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--primary);border-radius:2px 2px 0 0;}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 30px;border-radius:8px;font-size:15px;font-weight:600;transition:var(--transition);border:none;line-height:1.4;text-align:center;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-outline{background:#fff;border:1px solid var(--primary);color:var(--primary);}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary-dark);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(255,138,61,.3);}
.btn-sm{padding:8px 18px;font-size:13px;height:36px;}
.btn:focus,.search-box input:focus,a:focus{outline:none;box-shadow:0 0 0 3px rgba(58,123,213,.25);}

/* ===== Banner ===== */
.page-banner{position:relative;padding:80px 0;overflow:hidden;background:#fff;}
.banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.22;}
.page-banner::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#ffffff 0%,rgba(255,255,255,.94) 45%,rgba(234,242,251,.82) 100%);}
.banner-content{position:relative;display:flex;justify-content:space-between;align-items:center;gap:48px;}
.breadcrumb{font-size:13px;color:var(--text-muted);margin-bottom:14px;}
.breadcrumb a{color:var(--text-muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{margin:0 8px;color:#94A3B8;}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:4px;font-size:12px;font-weight:600;margin-bottom:16px;}
.badge-primary{background:var(--primary-light);color:var(--primary);}
.banner-left{max-width:720px;}
.banner-left h1{font-size:38px;font-weight:700;color:var(--text);line-height:1.25;margin-bottom:18px;}
.banner-desc{font-size:15px;color:var(--text-body);line-height:1.8;max-width:660px;}
.banner-stats{display:flex;flex-direction:column;gap:16px;min-width:240px;flex-shrink:0;}
.stat-item{background:rgba(255,255,255,.92);border:1px solid var(--border);border-radius:var(--radius);padding:20px 26px;box-shadow:var(--shadow);text-align:center;transition:var(--transition);}
.stat-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.stat-item strong{display:block;font-size:28px;color:var(--primary);font-weight:700;line-height:1.2;}
.stat-item span{font-size:13px;color:var(--text-muted);display:block;margin-top:4px;}

/* ===== Pills ===== */
.section-pills{padding:28px 0 8px;background:var(--bg);}
.channel-pills{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.pill{display:inline-block;padding:6px 18px;border-radius:20px;font-size:14px;font-weight:600;color:var(--text-body);background:#fff;border:1px solid var(--border);transition:var(--transition);cursor:default;}
.pill.active{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 4px 12px rgba(58,123,213,.2);}

/* ===== News Section ===== */
.section-news{padding:48px 0 72px;background:var(--bg);}
.section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;gap:16px;}
.section-head h2{font-size:28px;font-weight:700;color:var(--text);position:relative;padding-left:16px;line-height:1.3;}
.section-head h2::before{content:'';position:absolute;left:0;top:3px;bottom:3px;width:4px;background:var(--primary);border-radius:2px;}
.link-more{font-size:14px;font-weight:600;color:var(--primary);padding:8px 18px;border:1px solid var(--border);border-radius:8px;background:#fff;transition:var(--transition);white-space:nowrap;}
.link-more:hover{color:var(--primary-dark);border-color:var(--primary);background:var(--primary-light);}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.news-card{display:flex;background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:var(--transition);border:1px solid rgba(255,255,255,.8);}
.news-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.news-thumb{width:200px;min-height:150px;overflow:hidden;position:relative;flex-shrink:0;background:var(--primary-light);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{padding:18px 22px;display:flex;flex-direction:column;justify-content:space-between;flex:1;min-width:0;}
.news-cat{font-size:12px;font-weight:600;color:var(--primary);background:var(--primary-light);padding:2px 10px;border-radius:4px;display:inline-block;margin-bottom:8px;letter-spacing:.2px;}
.news-body h3{font-size:17px;font-weight:700;color:var(--text);line-height:1.45;margin-bottom:8px;letter-spacing:.2px;}
.news-body h3 a{color:inherit;}
.news-body h3 a:hover{color:var(--primary);}
.news-summary{font-size:13px;color:var(--text-muted);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:14px;font-size:12px;color:var(--text-muted);margin-top:14px;padding-top:12px;border-top:1px solid #F1F5F9;}
.news-meta i{color:var(--primary);width:14px;text-align:center;margin-right:3px;}

/* ===== Values ===== */
.section-values{padding:72px 0;background:#fff;border-top:1px solid var(--border);}
.section-values .section-head{justify-content:flex-start;}
.section-values .section-head h2{margin-bottom:0;}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px;}
.value-item{text-align:left;padding:32px 26px;border-radius:var(--radius);background:#F8FAFC;border:1px solid var(--border);transition:var(--transition);}
.value-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);background:#fff;}
.value-icon{width:54px;height:54px;border-radius:12px;background:var(--primary-light);color:var(--primary);font-size:24px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;}
.value-item h3{font-size:18px;font-weight:700;color:var(--text);margin-bottom:10px;}
.value-item p{font-size:14px;color:var(--text-muted);line-height:1.75;}

/* ===== FAQ ===== */
.section-faq{padding:72px 0;background:var(--bg);}
.section-faq h2{text-align:center;font-size:28px;font-weight:700;color:var(--text);position:relative;padding-left:16px;display:inline-block;margin:0 auto 40px;}
.section-faq h2::before{content:'';position:absolute;left:0;top:3px;bottom:3px;width:4px;background:var(--primary);border-radius:2px;}
.faq-list{max-width:880px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:10px;margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);}
.faq-item.active{border-color:var(--primary);box-shadow:var(--shadow-hover);}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;font-size:16px;font-weight:600;color:var(--text);cursor:pointer;gap:16px;transition:background .2s ease;}
.faq-q:hover{background:#F8FAFC;}
.faq-icon{width:28px;height:28px;border-radius:50%;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:14px;transition:var(--transition);flex-shrink:0;}
.faq-item.active .faq-icon{background:var(--primary);color:#fff;transform:rotate(45deg);}
.faq-a{display:none;padding:0 22px;font-size:14px;color:var(--text-body);line-height:1.8;background:#F8FAFC;border-top:1px solid var(--border);}

/* ===== CTA ===== */
.section-cta{padding:72px 0;}
.cta-box{background:linear-gradient(135deg,#EAF2FB 0%,#F4F8FC 100%);border-radius:16px;padding:56px 48px;text-align:center;border:1px solid var(--border);}
.cta-box h2{font-size:30px;font-weight:700;color:var(--text);margin-bottom:12px;line-height:1.3;}
.cta-box p{font-size:15px;color:var(--text-muted);margin-bottom:30px;}
.cta-buttons{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;}

/* ===== Footer ===== */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.75);padding:56px 0 0;}
.site-footer a{color:rgba(255,255,255,.75);}
.site-footer a:hover{color:#fff;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08);}
.footer-brand .logo-text{color:#fff;font-size:22px;font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-text .logo-icon{width:36px;height:36px;font-size:15px;}
.footer-brand .logo-text span{color:var(--primary);}
.footer-brand p{font-size:13px;line-height:1.85;color:rgba(255,255,255,.6);max-width:300px;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.3px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:13px;}
.footer-col ul li a:hover{color:var(--primary);padding-left:3px;}
.footer-contact li{font-size:13px;display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.65);margin-bottom:12px;}
.footer-contact i{width:18px;color:var(--primary);text-align:center;}
.footer-bottom{padding:20px 0;font-size:13px;color:rgba(255,255,255,.5);}
.footer-bottom .container-custom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;}

/* ===== Mobile Panel ===== */
.mobile-panel{display:none;background:#fff;border-bottom:1px solid var(--border);padding:16px 0;}
.mobile-panel.open{display:block;}
.mobile-panel .container-custom{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.mobile-search{flex:1;min-width:200px;display:flex;align-items:center;position:relative;}
.mobile-search input{height:40px;width:100%;border:1px solid var(--border);border-radius:8px;padding:0 44px 0 14px;font-size:14px;outline:none;transition:var(--transition);}
.mobile-search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(58,123,213,.15);}
.mobile-search button{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text-muted);font-size:15px;padding:4px;}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .news-thumb{width:180px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .value-grid{grid-template-columns:1fr;}
  .banner-content{gap:32px;}
  .banner-left{H 1}
  .banner-stats{min-width:200px;}
}
@media (max-width:768px){
  .brand-row{height:60px;}
  .search-box{display:none;}
  .collect-btn{display:none;}
  .hamburger{display:inline-flex;}
  .channel-nav{overflow-x:auto;}
  .channel-nav .container-custom{gap:20px;width:max-content;min-width:100%;}
  .page-banner{padding:48px 0;min-height:auto;}
  .banner-content{flex-direction:column;align-items:flex-start;text-align:left;}
  .banner-stats{flex-direction:row;width:100%;justify-content:space-between;gap:12px;flex-wrap:wrap;}
  .stat-item{flex:1;min-width:130px;padding:16px 14px;}
  .stat-item strong{font-size:22px;}
  .banner-left h1{font-size:28px;}
  .banner-desc{font-size:14px;}
  .news-grid{grid-template-columns:1fr;}
  .news-card{flex-direction:column;}
  .news-thumb{width:100%;height:170px;}
  .news-body{padding:16px 18px;}
  .section-news,.section-faq,.section-values,.section-cta{padding:48px 0;}
  .section-head h2{font-size:22px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .cta-box{padding:40px 24px;}
  .cta-box h2{font-size:24px;}
  .cta-buttons{flex-direction:column;align-items:stretch;}
  .btn{width:100%;}
  .site-footer{padding-top:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section-faq h2{display:block;text-align:left;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand p{max-width:100%;}
  .brand-logo .logo-text{font-size:20px;}
  .logo-icon{width:36px;height:36px;font-size:16px;}
  .banner-description-style{font-size:13px;}
  .stat-item{min-width:100px;}
  .news-thumb{height:150px;}
  .faq-q{font-size:15px;padding:16px 16px;}
  .faq-a{padding:0 16px;}
  .faq-item.active .faq-a{padding:14px 16px 18px;}
  .container-custom{padding:0 16px;}
}

/* roulang page: article */
:root{
  --primary:#3A7BD5;
  --primary-dark:#2B5FA8;
  --primary-light:#EAF2FB;
  --accent:#FF8A3D;
  --bg-page:#F4F8FC;
  --bg-card:#FFFFFF;
  --text-title:#1E293B;
  --text-body:#334155;
  --text-muted:#64748B;
  --border:#E2E8F0;
  --footer-bg:#1B2A3B;
  --empty-bg:#F8FAFC;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-input:8px;
  --radius-badge:4px;
  --shadow-card:0 4px 12px rgba(31,58,95,.06);
  --shadow-hover:0 12px 28px rgba(31,58,95,.12);
  --transition:all .25s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans CN","Helvetica Neue",Arial,sans-serif;
  background:var(--bg-page);
  color:var(--text-body);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-dark)}
button{font-family:inherit;cursor:pointer}
input,textarea{font-family:inherit}
.container-custom{max-width:1200px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:820px;margin:0 auto;padding:0 24px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 28px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:var(--transition);line-height:1.4;white-space:nowrap;
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(58,123,213,.25)}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-2px)}
.btn-outline{background:#fff;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-2px)}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-accent:hover{background:#E67320;border-color:#E67320;color:#fff;transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}

/* ===== Header ===== */
.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;box-shadow:0 2px 8px rgba(31,58,95,.04)}
.header-top{height:68px;background:#fff;position:relative}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;height:100%}
.logo-link{display:flex;align-items:center;flex-shrink:0}
.logo-text{font-size:26px;font-weight:700;color:var(--text-title);letter-spacing:-.5px;display:flex;align-items:center}
.logo-icon{display:inline-flex;width:40px;height:40px;background:var(--primary);color:#fff;border-radius:12px;align-items:center;justify-content:center;margin-right:10px;font-size:18px;transform:rotate(-4deg)}
.logo-text span{color:var(--primary)}
.header-actions{display:flex;align-items:center;gap:14px}
.search-box{display:flex;align-items:center;gap:6px;background:var(--bg-page);border:1px solid var(--border);border-radius:var(--radius-input);padding:0 6px 0 14px;height:40px;width:240px;transition:var(--transition)}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(58,123,213,.15);background:#fff}
.search-box input{border:none;outline:none;background:transparent;flex:1;font-size:14px;color:var(--text-body)}
.search-box input::placeholder{color:#94A3B8}
.search-box button{background:var(--primary);border:none;color:#fff;width:32px;height:32px;border-radius:6px;font-size:14px;display:flex;align-items:center;justify-content:center;transition:var(--transition)}
.search-box button:hover{background:var(--primary-dark)}
.btn-header-fav{display:inline-flex;align-items:center;gap:6px;background:var(--primary-light);border:1px solid transparent;color:var(--primary);font-size:13px;font-weight:600;padding:9px 16px;border-radius:var(--radius-btn);transition:var(--transition)}
.btn-header-fav:hover{background:#dbe9f8;color:var(--primary-dark);transform:translateY(-1px)}
.menu-toggle{display:none;background:none;border:1px solid var(--border);border-radius:8px;width:40px;height:40px;align-items:center;justify-content:center;font-size:20px;color:var(--text-title);cursor:pointer;transition:var(--transition)}
.menu-toggle:hover{background:var(--primary-light);color:var(--primary)}

/* 频道导航 */
.channel-nav{background:#F8FAFC;border-bottom:1px solid var(--border);min-height:48px}
.channel-nav .container-custom{display:flex;align-items:center;gap:2px}
.channel-nav a{display:inline-flex;align-items:center;padding:0 18px;height:48px;font-size:15px;font-weight:500;color:var(--text-body);position:relative;transition:var(--transition);white-space:nowrap}
.channel-nav a:hover{color:var(--primary);background:var(--primary-light)}
.channel-nav a.active{color:var(--primary);font-weight:600}
.channel-nav a.active::after{content:'';position:absolute;left:14px;right:14px;bottom:0;height:3px;background:var(--primary);border-radius:3px 3px 0 0}
.channel-nav a i{margin-right:6px;font-size:14px;color:var(--primary);opacity:.8}

/* ===== 面包屑 ===== */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-muted);margin-bottom:22px}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb-sep{color:#CBD5E1;font-size:14px}
.breadcrumb .current{color:var(--text-body);font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:380px}

/* ===== 文章头部 ===== */
.article-hero{
  padding:52px 0 42px;
  background:linear-gradient(120deg,rgba(255,255,255,.94) 35%,rgba(234,242,251,.88)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;border-bottom:1px solid var(--border);
}
.article-head{max-width:880px}
.badge-category{display:inline-flex;align-items:center;gap:6px;background:var(--primary-light);color:var(--primary);padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;margin-bottom:18px;box-shadow:0 2px 8px rgba(58,123,213,.08)}
.badge-category i{font-size:12px}
.article-head h1{font-size:36px;font-weight:700;color:var(--text-title);line-height:1.3;margin-bottom:18px;letter-spacing:-.5px}
.article-meta{display:flex;flex-wrap:wrap;gap:20px;font-size:13px;color:var(--text-muted);margin-bottom:26px}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta .meta-item i{color:var(--primary);opacity:.7}
.article-summary{background:var(--empty-bg);border-left:4px solid var(--primary);border-radius:0 10px 10px 0;padding:18px 22px;font-size:15px;line-height:1.8;color:var(--text-body);box-shadow:var(--shadow-card)}

/* ===== 正文区 ===== */
.article-body-section{padding:56px 0 40px;background:#fff}
.article-content{font-size:16px;line-height:1.8;color:var(--text-body)}
.article-content p{margin-bottom:22px}
.article-content h2{font-size:24px;font-weight:700;color:var(--text-title);margin:38px 0 18px;padding-left:14px;border-left:4px solid var(--primary);line-height:1.4}
.article-content h3{font-size:18px;font-weight:600;color:var(--text-title);margin:28px 0 14px}
.article-content h4{font-size:16px;font-weight:600;color:var(--text-title);margin:24px 0 12px}
.article-content blockquote{border-left:4px solid var(--primary);background:var(--empty-bg);padding:18px 22px;border-radius:0 10px 10px 0;margin:26px 0;color:var(--text-body);font-size:15px}
.article-content img{border-radius:10px;max-width:100%;height:auto;margin:26px auto;box-shadow:var(--shadow-card)}
.article-content a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-content ul,.article-content ol{margin:18px 0 22px;padding-left:26px}
.article-content li{margin-bottom:8px}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px}
.article-content table th,.article-content table td{border:1px solid var(--border);padding:10px 14px;text-align:left}
.article-content table th{background:var(--primary-light);color:var(--primary-dark);font-weight:600}
.article-content iframe{border-radius:10px;max-width:100%;margin:24px 0}

/* 文章底部 */
.article-footer{border-top:1px solid var(--border);margin-top:48px;padding-top:28px}
.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:28px}
.tags-title{font-size:14px;font-weight:600;color:var(--text-muted);margin-right:6px}
.tags-title i{color:var(--primary);margin-right:4px}
.tag-item{display:inline-flex;align-items:center;background:#F1F5F9;color:var(--text-muted);padding:6px 14px;border-radius:6px;font-size:13px;font-weight:500;transition:var(--transition)}
.tag-item:hover{background:var(--primary-light);color:var(--primary)}
.article-back{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px}

/* ===== 空态 ===== */
.empty-state{border:1px dashed #CBD5E1;border-radius:16px;background:var(--empty-bg);padding:80px 40px;text-align:center}
.empty-state i{font-size:52px;color:#CBD5E1;margin-bottom:18px}
.empty-state p{font-size:18px;color:var(--text-muted);margin-bottom:24px}
.empty-state .btn{display:inline-flex}

/* ===== 延伸阅读 ===== */
.related-section{padding:64px 0;background:var(--bg-page);border-top:1px solid var(--border)}
.section-header{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:34px;flex-wrap:wrap;gap:16px}
.section-title{font-size:28px;font-weight:700;color:var(--text-title);position:relative;padding-left:16px;line-height:1.3}
.section-title::before{content:'';position:absolute;left:0;top:2px;width:4px;height:26px;background:var(--primary);border-radius:4px}
.section-sub{font-size:14px;color:var(--text-muted)}
.related-section .cell{margin-bottom:24px}
.related-card{background:var(--bg-card);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:var(--transition);height:100%;display:flex;flex-direction:column}
.related-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-6px)}
.related-card .card-img{position:relative;overflow:hidden;height:190px;background:#E8EEF5}
.related-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.related-card:hover .card-img img{transform:scale(1.05)}
.related-card .card-badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);backdrop-filter:blur(4px);color:var(--primary);padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;box-shadow:0 2px 8px rgba(0,0,0,.06)}
.related-card .card-body{padding:20px;flex:1;display:flex;flex-direction:column}
.related-card h3{font-size:17px;font-weight:600;color:var(--text-title);line-height:1.45;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card h3 a{color:var(--text-title)}
.related-card h3 a:hover{color:var(--primary)}
.related-card p{font-size:14px;color:var(--text-muted);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.related-card .card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-muted)}
.related-card .card-foot i{color:var(--primary);opacity:.6}

/* ===== CTA ===== */
.cta-section{padding:64px 0;background:var(--bg-page)}
.cta-box{background:linear-gradient(135deg,var(--primary-light) 0%,#F4F8FC 100%);border-radius:20px;padding:56px 40px;text-align:center;box-shadow:var(--shadow-card);position:relative;overflow:hidden}
.cta-box::before{content:'';position:absolute;top:-40px;right:-40px;width:140px;height:140px;border-radius:50%;background:rgba(58,123,213,.08)}
.cta-box::after{content:'';position:absolute;bottom:-30px;left:-20px;width:90px;height:90px;border-radius:50%;background:rgba(255,138,61,.08)}
.cta-box h2{font-size:30px;font-weight:700;color:var(--text-title);margin-bottom:14px;position:relative;z-index:1}
.cta-box p{font-size:15px;color:var(--text-muted);max-width:560px;margin:0 auto 30px;position:relative;z-index:1;line-height:1.8}
.cta-buttons{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;position:relative;z-index:1}

/* ===== Footer ===== */
.site-footer{background:var(--footer-bg);color:#A8B8C8;padding-top:64px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand .logo-text{color:#fff;font-size:24px;margin-bottom:16px}
.footer-brand .logo-text span{color:#7AA7E0}
.footer-brand p{max-width:340px;line-height:1.8;font-size:14px;color:#8CA0B5}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-col h4::before{content:'';position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--primary);border-radius:2px}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:#A8B8C8;transition:var(--transition)}
.footer-col ul a:hover{color:#fff;padding-left:4px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:#A8B8C8;margin-bottom:12px}
.footer-contact i{color:var(--primary);margin-top:4px;width:16px;flex-shrink:0}
.footer-bottom{padding:20px 0;font-size:13px;color:#7A8A9C}
.footer-bottom .container-custom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}

/* ===== Toast ===== */
.toast-msg{position:fixed;left:50%;bottom:36px;transform:translateX(-50%) translateY(20px);background:var(--footer-bg);color:#fff;padding:12px 24px;border-radius:30px;font-size:14px;opacity:0;visibility:hidden;transition:var(--transition);z-index:999;box-shadow:0 12px 28px rgba(0,0,0,.2);white-space:nowrap;max-width:90vw;overflow:hidden;text-overflow:ellipsis}
.toast-msg.show{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .search-box{width:190px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .article-head h1{font-size:32px}
}
@media (max-width:767px){
  .header-top{height:64px}
  .header-actions{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;padding:20px 24px;flex-direction:column;align-items:stretch;gap:14px;box-shadow:0 16px 32px rgba(31,58,95,.12);border-bottom:1px solid var(--border);z-index:99}
  .header-actions.open{display:flex}
  .header-actions.open .search-box{width:100%}
  .header-actions.open .btn-header-fav{justify-content:center}
  .menu-toggle{display:inline-flex}
  .channel-nav .container-custom{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;white-space:nowrap}
  .channel-nav .container-custom::-webkit-scrollbar{display:none}
  .channel-nav a{padding:0 14px}
  .article-hero{padding:36px 0 30px}
  .article-head h1{font-size:28px}
  .article-meta{gap:12px 16px}
  .article-body-section{padding:40px 0 30px}
  .article-content{font-size:15px}
  .related-section{padding:48px 0}
  .section-title{font-size:24px}
  .cta-section{padding:48px 0}
  .cta-box{padding:40px 24px}
  .cta-box h2{font-size:24px}
  .cta-buttons{flex-direction:column;align-items:center}
  .cta-buttons .btn{width:100%;max-width:280px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom .container-custom{justify-content:center;text-align:center}
  .article-back{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container-custom,.container-narrow{padding:0 18px}
  .channel-nav a{font-size:14px;padding:0 12px}
  .article-head h1{font-size:25px}
  .badge-category{font-size:12px;padding:6px 12px}
  .article-summary{font-size:14px;padding:14px 16px}
  .related-card .card-img{height:160px}
  .cta-box h2{font-size:22px}
}

/* roulang page: category2 */
:root {
    --primary: #3A7BD5;
    --primary-dark: #2B5FA8;
    --primary-light: #EAF2FB;
    --accent: #FF8A3D;
    --accent-dark: #E67120;
    --bg: #F4F8FC;
    --card-bg: #FFFFFF;
    --title-color: #1E293B;
    --text-color: #334155;
    --muted-color: #64748B;
    --border-color: #E2E8F0;
    --footer-bg: #1B2A3B;
    --radius-card: 12px;
    --radius-btn: 8px;
    --radius-input: 8px;
    --radius-tag: 4px;
    --shadow-card: 0 4px 12px rgba(31, 58, 95, 0.06);
    --shadow-hover: 0 12px 28px rgba(31, 58, 95, 0.12);
    --transition: all .25s ease;
    --font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", "Helvetica Neue", Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--bg);
    color: var(--text-color);
    line-height: 1.75;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
    color: var(--primary-dark);
}

button {
    font-family: var(--font-family);
    cursor: pointer;
    border: none;
    background: none;
}

input {
    font-family: var(--font-family);
}

.container-custom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Header ===== */
.site-header {
    background: #fff;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(31, 58, 95, 0.04);
}

.header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
    gap: 20px;
}

.logo-text {
    font-size: 26px;
    font-weight: 700;
    color: var(--title-color);
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 15px;
    flex-shrink: 0;
}

.logo-text span {
    color: var(--primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-input);
    height: 40px;
    width: 220px;
    overflow: hidden;
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.2);
    background: #fff;
}

.search-box input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 0 12px;
    font-size: 14px;
    color: var(--title-color);
    outline: none;
    height: 100%;
}

.search-box input::placeholder {
    color: var(--muted-color);
}

.search-box button {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: #fff;
    font-size: 14px;
    transition: var(--transition);
}

.search-box button:hover {
    background: var(--primary-dark);
}

.btn-favorite {
    display: flex;
    align-items: center;
    gap: 6px;
    height: 40px;
    padding: 0 18px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: var(--radius-btn);
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-favorite:hover {
    background: var(--primary);
    color: #fff;
}

.hamburger {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--title-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-btn);
    background: #fff;
    transition: var(--transition);
}

.hamburger:hover {
    background: var(--primary-light);
}

/* ===== Channel Nav ===== */
.channel-nav {
    background: #F8FAFC;
    border-bottom: 1px solid var(--border-color);
    height: 48px;
}

.channel-nav .container-custom {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 100%;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.channel-nav .container-custom::-webkit-scrollbar {
    display: none;
}

.channel-nav a {
    display: inline-flex;
    align-items: center;
    height: 48px;
    padding: 0 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-color);
    border-bottom: 3px solid transparent;
    white-space: nowrap;
    transition: var(--transition);
    position: relative;
}

.channel-nav a:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.channel-nav a.active {
    color: var(--primary);
    font-weight: 600;
    border-bottom-color: var(--primary);
    background: var(--primary-light);
}

/* ===== Category Hero ===== */
.category-hero {
    background: linear-gradient(135deg, rgba(234, 242, 251, 0.95), rgba(244, 248, 252, 0.88)), url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    padding: 88px 0 96px;
    position: relative;
    border-bottom: 1px solid var(--border-color);
}

.category-hero__inner {
    max-width: 720px;
}

.hero-badge {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: var(--radius-tag);
    margin-bottom: 18px;
}

.category-hero h1 {
    font-size: 38px;
    font-weight: 700;
    color: var(--title-color);
    line-height: 1.25;
    margin-bottom: 16px;
}

.hero-desc {
    font-size: 16px;
    color: var(--muted-color);
    line-height: 1.75;
    margin-bottom: 30px;
    max-width: 640px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 44px;
    padding: 0 26px;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    text-decoration: none;
    justify-content: center;
}

.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.25);
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-hover);
}

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

.btn-outline:hover {
    background: var(--primary-light);
    color: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-accent {
    background: var(--accent);
    color: #fff;
}

.btn-accent:hover {
    background: var(--accent-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(255, 138, 61, 0.3);
}

.btn-outline-light {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.6);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border-color: #fff;
}

/* ===== Stats Section ===== */
.stats-section {
    padding: 56px 0 24px;
}

.stats-grid {
    background: var(--card-bg);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 36px 20px;
    border: 1px solid var(--border-color);
}

.stats-item {
    text-align: center;
    padding: 10px 12px;
}

.stats-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
    margin-bottom: 6px;
}

.stats-label {
    font-size: 14px;
    color: var(--muted-color);
}

/* ===== Section Head ===== */
.section-head {
    margin-bottom: 40px;
}

.section-head h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--title-color);
    line-height: 1.3;
    padding-left: 16px;
    border-left: 4px solid var(--primary);
    margin-bottom: 8px;
}

.section-head p {
    font-size: 15px;
    color: var(--muted-color);
    margin-top: 6px;
    padding-left: 16px;
}

/* ===== Featured Section ===== */
.featured-section {
    padding: 48px 0 24px;
}

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

.featured-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}

.featured-card__image {
    width: 50%;
    min-height: 320px;
    overflow: hidden;
    position: relative;
    background: var(--primary-light);
}

.featured-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.featured-card:hover .featured-card__image img {
    transform: scale(1.03);
}

.featured-card__content {
    flex: 1;
    padding: 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
}

.featured-card__content h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--title-color);
    margin: 14px 0 14px;
    line-height: 1.4;
}

.featured-card__content p {
    font-size: 15px;
    color: var(--muted-color);
    line-height: 1.75;
    margin-bottom: 24px;
}

.tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    padding: 3px 12px;
    border-radius: var(--radius-tag);
}

.tag-hot {
    background: var(--accent);
    color: #fff;
}

/* ===== Grid Section ===== */
.grid-section {
    padding: 40px 0 48px;
}

.topic-card {
    display: flex;
    background: var(--card-bg);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
}

.topic-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}

.topic-card:hover .topic-card__media img {
    transform: scale(1.03);
}

.topic-card__media {
    width: 200px;
    min-height: 180px;
    overflow: hidden;
    background: var(--primary-light);
    flex-shrink: 0;
}

.topic-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.topic-card__body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
}

.topic-card__body h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--title-color);
    margin: 10px 0 8px;
    line-height: 1.4;
    transition: var(--transition);
}

.topic-card__body h3:hover {
    color: var(--primary);
}

.topic-card__body p {
    font-size: 14px;
    color: var(--muted-color);
    line-height: 1.65;
}

/* ===== FAQ Section ===== */
.faq-section {
    padding: 64px 0;
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.faq-list {
    max-width: 840px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 12px;
    overflow: hidden;
    background: #fff;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px;
    font-size: 16px;
    font-weight: 600;
    color: var(--title-color);
    background: transparent;
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--primary-light);
}

.faq-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--primary);
    transition: transform .3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-icon {
    transform: rotate(135deg);
}

.faq-answer {
    padding: 0 22px;
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease, padding .3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 22px 20px;
    max-height: 500px;
}

.faq-answer p {
    font-size: 14px;
    color: var(--muted-color);
    line-height: 1.75;
}

/* ===== CTA Section ===== */
.cta-section {
    padding: 80px 0;
}

.cta-card {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 16px;
    padding: 64px 40px;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.12);
}

.cta-card::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -40px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.08);
}

.cta-card h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.cta-card p {
    font-size: 16px;
    opacity: 0.9;
    max-width: 560px;
    margin: 0 auto 32px;
    position: relative;
    z-index: 1;
}

.cta-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--footer-bg);
    color: rgba(255, 255, 255, 0.75);
    padding: 64px 0 0;
}

.site-footer .logo-text {
    color: #fff;
}

.site-footer .logo-icon {
    background: var(--primary);
}

.site-footer .logo-text span {
    color: #7EB3F0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    margin-top: 14px;
    color: rgba(255, 255, 255, 0.6);
    max-width: 300px;
}

.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 18px;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: #fff;
    padding-left: 4px;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-contact li i {
    color: var(--primary);
    width: 18px;
    text-align: center;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 20px 0;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

/* ===== Mobile Menu ===== */
.mobile-menu {
    display: none;
    background: #fff;
    border-top: 1px solid var(--border-color);
    padding: 12px 24px;
    box-shadow: 0 8px 16px rgba(31, 58, 95, 0.08);
}

.mobile-menu.open {
    display: block;
}

.mobile-menu a {
    display: block;
    padding: 12px 8px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.mobile-menu a:last-child {
    border-bottom: none;
}

.mobile-menu a:hover,
.mobile-menu a.active {
    color: var(--primary);
    background: var(--primary-light);
    border-radius: var(--radius-btn);
}

/* ===== Section spacing ===== */
.section-spacing {
    padding: 96px 0;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .search-box {
        width: 180px;
    }

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

    .featured-card__image {
        width: 100%;
        min-height: 260px;
    }

    .featured-card__content {
        padding: 32px;
    }

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

@media (max-width: 768px) {
    .search-box {
        display: none;
    }

    .btn-favorite {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .category-hero {
        padding: 60px 0 72px;
    }

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

    .hero-desc {
        font-size: 15px;
    }

    .stats-section {
        padding: 40px 0 16px;
    }

    .stats-number {
        font-size: 28px;
    }

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

    .topic-card__media {
        width: 100%;
        min-height: 180px;
    }

    .topic-card__body {
        padding: 20px;
    }

    .cta-section {
        padding: 56px 0;
    }

    .cta-card {
        padding: 44px 24px;
    }

    .cta-card h2 {
        font-size: 22px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .section-spacing {
        padding: 56px 0;
    }

    .faq-section {
        padding: 48px 0;
    }
}

@media (max-width: 520px) {
    .container-custom {
        padding: 0 16px;
    }

    .category-hero h1 {
        font-size: 26px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .stats-grid {
        padding: 24px 12px;
    }

    .stats-number {
        font-size: 24px;
    }

    .featured-card__content {
        padding: 24px;
    }

    .featured-card__content h3 {
        font-size: 20px;
    }

    .cta-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .cta-actions .btn {
        width: 100%;
    }
}