/* 诚创部落前台样式 */
:root{
  --primary:#0f766e;       /* 墨绿 */
  --primary-dark:#115e59;
  --accent:#f59e0b;        /* 暖橙 */
  --bg:#f8fafc;
  --text:#1e293b;
  --muted:#64748b;
  --border:#e2e8f0;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.6}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* 顶部条 */
.topbar{background:var(--primary-dark);color:#fff;font-size:13px;padding:6px 0}
.topbar .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* 导航 */
.nav{background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.06);position:sticky;top:0;z-index:50}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:var(--primary-dark)}
.logo-mark{width:36px;height:36px;border-radius:8px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));display:grid;place-items:center;color:#fff;font-size:18px}
.menu{display:flex;gap:28px;list-style:none}
.menu a{font-size:15px;color:var(--text);padding:6px 2px;border-bottom:2px solid transparent}
.menu a:hover,.menu a.active{color:var(--primary);border-bottom-color:var(--primary)}

/* Banner */
.hero{background:linear-gradient(135deg,#0f766e 0%,#134e4a 100%);color:#fff;padding:80px 0}
.hero h1{font-size:42px;line-height:1.2;margin-bottom:16px}
.hero p{font-size:18px;opacity:.9;max-width:640px}
.hero .btn{display:inline-block;margin-top:24px;padding:12px 32px;background:var(--accent);color:#1e293b;border-radius:999px;font-weight:600}

/* 区块 */
.section{padding:60px 0}
.section-title{font-size:28px;text-align:center;margin-bottom:8px}
.section-sub{text-align:center;color:var(--muted);margin-bottom:36px}

/* 分类卡片 */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cat-card{background:#fff;border-radius:12px;padding:24px;text-align:center;border:1px solid var(--border);transition:.2s}
.cat-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(15,118,110,.12);border-color:var(--primary)}
.cat-icon{width:56px;height:56px;border-radius:12px;background:#ecfdf5;display:grid;place-items:center;margin:0 auto 12px;font-size:26px}
.cat-card h3{font-size:16px}

/* 产品卡片 */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.prod-card{background:#fff;border-radius:12px;overflow:hidden;border:1px solid var(--border);transition:.2s;display:flex;flex-direction:column}
.prod-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,.08)}
.prod-img{height:180px;background:#f1f5f9;display:grid;place-items:center;font-size:64px}
.prod-body{padding:16px;flex:1;display:flex;flex-direction:column}
.prod-body h3{font-size:16px;margin-bottom:6px}
.prod-body p{font-size:13px;color:var(--muted);flex:1}
.prod-spec{margin-top:10px;font-size:12px;color:var(--primary);background:#ecfdf5;display:inline-block;padding:2px 8px;border-radius:4px;align-self:flex-start}

/* 文章卡片 */
.article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.article-card{background:#fff;border-radius:12px;padding:22px;border:1px solid var(--border);transition:.2s}
.article-card:hover{box-shadow:0 8px 24px rgba(0,0,0,.08)}
.article-card .tag{display:inline-block;font-size:12px;color:var(--primary);background:#ecfdf5;padding:2px 10px;border-radius:999px;margin-bottom:10px}
.article-card h3{font-size:17px;margin-bottom:8px;line-height:1.4}
.article-card p{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article-card .meta{margin-top:12px;font-size:12px;color:var(--muted)}

/* 关于 */
.about{background:#fff}
.about .cols{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.about h2{font-size:28px;margin-bottom:16px;color:var(--primary-dark)}
.about ul{list-style:none;margin-top:16px}
.about li{padding:6px 0;color:var(--text)}
.about li::before{content:"✓";color:var(--primary);font-weight:bold;margin-right:8px}

/* 页脚 */
.footer{background:#0f172a;color:#94a3b8;padding:40px 0 20px;font-size:14px}
.footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;margin-bottom:24px}
.footer h4{color:#fff;margin-bottom:12px;font-size:15px}
.footer-bottom{border-top:1px solid #1e293b;padding-top:16px;text-align:center;font-size:12px}

/* 文章详情 */
.article-detail{background:#fff;border-radius:12px;padding:40px;max-width:820px;margin:0 auto}
.article-detail h1{font-size:30px;line-height:1.3;margin-bottom:12px}
.article-detail .meta{color:var(--muted);font-size:13px;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.article-detail .content{font-size:16px;line-height:1.9}
.article-detail .content h2{font-size:22px;margin:24px 0 12px;color:var(--primary-dark)}
.article-detail .content h3{font-size:18px;margin:20px 0 8px}
.article-detail .content p{margin-bottom:12px}
.article-detail .content ul,.article-detail .content ol{margin:0 0 12px 24px}
.article-detail .faq{background:#f8fafc;border-left:3px solid var(--primary);padding:14px 18px;margin:12px 0;border-radius:0 8px 8px 0}

/* 产品列表页分类筛选 */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.filter-bar a{padding:6px 16px;background:#fff;border:1px solid var(--border);border-radius:999px;font-size:14px}
.filter-bar a.active,.filter-bar a:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

@media (max-width:900px){
  .cat-grid,.prod-grid{grid-template-columns:repeat(2,1fr)}
  .article-list{grid-template-columns:1fr}
  .about .cols{grid-template-columns:1fr}
  .hero h1{font-size:30px}
  .menu{gap:16px}
}