/* 智盟CMS 官网宣传站模板样式 */
:root{
  --primary:#1a73e8;--primary-dark:#0d47a1;--ink:#1a2333;--muted:#5b6b82;
  --bg:#ffffff;--bg-soft:#f4f7fb;--line:#e3eaf3;--radius:12px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.75}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-dark)}
.container{max-width:1140px;margin:0 auto;padding:0 20px}
.container.narrow{max-width:820px}
.empty-tip{color:var(--muted);padding:24px 0}

/* 页头导航 */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand-text{font-size:1.9rem;font-weight:800;color:var(--ink);letter-spacing:.02em;line-height:1}
.brand-text em{font-style:normal;color:var(--primary)}
.main-nav .nav-list{display:flex;gap:28px;list-style:none}
.main-nav .nav-list>li{position:relative}
.main-nav a{color:var(--ink);font-weight:500;padding:8px 0;display:inline-block}
.main-nav a:hover{color:var(--primary)}
.sub-nav{display:none;position:absolute;top:100%;left:0;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.08);list-style:none;min-width:160px;padding:8px}
.main-nav li:hover .sub-nav{display:block}
.sub-nav a{display:block;padding:8px 14px;white-space:nowrap}
.nav-cta{background:var(--primary);color:#fff;font-weight:600;padding:9px 22px;border-radius:999px;white-space:nowrap;transition:.2s}
.nav-cta:hover{background:var(--primary-dark);color:#fff}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:10px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}

/* Hero */
.hero{position:relative;color:#fff;overflow:hidden;background:#0b1f3a}
.hero-bg{width:100%;height:420px;object-fit:cover;opacity:.85}
.hero-content{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;max-width:1140px}
.hero h1{font-size:2.4rem;line-height:1.3;margin-bottom:12px;color:#fff}
.hero-sub{font-size:1.1rem;color:#dbe7f5;max-width:640px;margin-bottom:24px}
.hero-cta{display:flex;gap:14px}
.btn{display:inline-block;padding:12px 28px;border-radius:999px;font-weight:600;transition:.2s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff}
.btn-ghost{border:1px solid rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{border-color:#fff;color:#fff}

/* 功能区 */
.features{padding:72px 0;background:var(--bg-soft)}
.features h2,.home-articles h2,.home-faq h2{text-align:center;font-size:1.9rem;margin-bottom:8px}
.section-desc{text-align:center;color:var(--muted);margin-bottom:36px}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px}
.feature-card h3{font-size:1.25rem;margin-bottom:10px;color:var(--primary-dark)}
.feature-card p{color:var(--muted);margin-bottom:14px;font-size:.95rem}

/* 文章卡片 */
.home-articles{padding:72px 0}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.section-head h2{margin:0;text-align:left}
.more{font-size:.9rem;white-space:nowrap}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.article-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:.2s}
.article-card:hover{box-shadow:0 10px 28px rgba(26,115,232,.12);transform:translateY(-2px)}
.article-card a{color:var(--ink)}
.article-card img{width:100%;height:180px;object-fit:cover}
.article-card-body{padding:18px}
.article-card-body h3{font-size:1.05rem;line-height:1.5;margin-bottom:8px}
.article-card-body p{font-size:.88rem;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px}
.article-date{font-size:.8rem;color:#93a1b5}

/* FAQ */
.home-faq{padding:0 0 72px}
.faq-list{list-style:none;max-width:820px;margin:0 auto}
.faq-list li{border-bottom:1px solid var(--line)}
.faq-list a{display:block;padding:16px 4px;color:var(--ink);font-size:1.05rem}
.faq-list a::before{content:"问";display:inline-block;background:var(--primary);color:#fff;font-size:.75rem;border-radius:4px;padding:1px 7px;margin-right:10px}

/* CTA */
.cta-band{background:linear-gradient(135deg,#0b1f3a,#144a9e);color:#fff;padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.cta-inner h2{color:#fff;margin-bottom:8px}
.cta-inner p{color:#dbe7f5}
.cta-inner img{background:#fff;padding:8px;border-radius:8px}

/* 列表/详情/单页 */
.page-hero{background:var(--bg-soft);padding:48px 0 32px;border-bottom:1px solid var(--line)}
.page-hero h1{font-size:2rem}
.crumb{color:var(--muted);font-size:.88rem;margin-top:8px}
.list-wrap{padding:40px 0 64px}
.news-list{list-style:none}
.news-item{display:flex;gap:20px;padding:22px 0;border-bottom:1px solid var(--line);color:var(--ink)}
.news-item img{width:220px;height:140px;object-fit:cover;border-radius:8px;flex-shrink:0}
.news-item-body h2{font-size:1.2rem;margin-bottom:8px;line-height:1.5}
.news-item-body p{color:var(--muted);font-size:.92rem;margin-bottom:8px}
.pagination{display:flex;gap:14px;align-items:center;justify-content:center;padding:32px 0;color:var(--muted)}
.article-detail{padding:48px 0 24px}
.article-detail h1{font-size:1.9rem;line-height:1.4;margin:12px 0}
.article-detail .meta{color:var(--muted);font-size:.88rem;margin-bottom:20px;display:flex;gap:16px}
.detail-cover{border-radius:var(--radius);margin:0 auto 28px}
.content{font-size:1.02rem}
.content h2{font-size:1.4rem;margin:32px 0 14px;padding-left:12px;border-left:4px solid var(--primary)}
.content h3{font-size:1.15rem;margin:24px 0 10px}
.content p{margin-bottom:14px}
.content ul,.content ol{margin:0 0 16px 22px}
.content li{margin-bottom:8px}
.content table{width:100%;border-collapse:collapse;margin:16px 0;font-size:.95rem}
.content th,.content td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.content th{background:var(--bg-soft)}
.content img{border-radius:8px;margin:16px auto}
.content blockquote{border-left:4px solid var(--line);padding:8px 16px;color:var(--muted);margin:16px 0;background:var(--bg-soft);border-radius:0 8px 8px 0}
.article-cta{background:var(--bg-soft);border-radius:var(--radius);padding:28px;margin:36px 0;display:flex;align-items:center;justify-content:space-between;gap:20px}
.article-cta img{background:#fff;padding:6px;border-radius:8px}
.back-link{margin:24px 0}
.related{padding:0 0 56px}
.related h2{font-size:1.3rem;margin-bottom:16px}
.related ul{list-style:none}
.related li{padding:10px 0;border-bottom:1px dashed var(--line)}
.single-page{padding:48px 0 64px}

/* 页脚 */
.site-footer{background:#0e1a2e;color:#c6d3e3;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:40px;padding:56px 0 40px}
.footer-grid h3{color:#fff;font-size:1rem;margin-bottom:14px}
.footer-about .brand-text{color:#fff}
.footer-about p{font-size:.9rem;margin-top:12px;color:#9fb0c5}
.footer-contact p{font-size:.9rem;color:#9fb0c5;margin-bottom:12px}
.footer-contact img{background:#fff;padding:8px;border-radius:8px}
.footer-bottom{border-top:1px solid #1d2f4b;padding:18px 0;font-size:.85rem;color:#8b9cb3;text-align:center}
.footer-bottom a{color:#8b9cb3}
.footer-bottom a:hover{color:#c6d3e3;text-decoration:underline}

/* 响应式 */
@media(max-width:900px){
  .feature-grid,.article-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-bg{height:360px}
  .hero h1{font-size:1.8rem}
}
@media(max-width:640px){
  .nav-toggle{display:block}
  .nav-cta{padding:7px 14px;font-size:.88rem;margin-left:auto;margin-right:4px}
  .main-nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(0,0,0,.08)}
  .main-nav.open{display:block}
  .main-nav .nav-list{flex-direction:column;gap:0;padding:8px 20px 16px}
  .main-nav .sub-nav{position:static;box-shadow:none;border:0;padding:0 0 0 16px}
  .feature-grid,.article-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .news-item{flex-direction:column}
  .news-item img{width:100%;height:auto}
  .cta-inner,.article-cta{flex-direction:column;text-align:center}
  .hero-bg{height:320px}
  .hero h1{font-size:1.5rem}
}