:root{
  --bg:#f5f7fb; --card:#ffffff; --ink:#1f2937; --muted:#6b7280;
  --line:#e5e7eb; --brand:#2563eb; --brand2:#06b6d4; --accent:#f59e0b;
  --radius:14px; --shadow:0 1px 3px rgba(16,24,40,.08),0 6px 18px rgba(16,24,40,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg); color:var(--ink); line-height:1.6; overflow-x:hidden;
}
a{color:inherit; text-decoration:none}
.wrap{max-width:1180px; margin:0 auto; padding:0 18px}
code{background:#eef2ff; color:var(--brand); padding:1px 6px; border-radius:6px; font-size:12px}

/* ===== 顶部导航栏 ===== */
.site-header{
  position:sticky; top:0; z-index:20; background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(8px); border-bottom:1px solid var(--line);
}
.header-inner{display:flex; align-items:center; gap:18px; padding:12px 0; flex-wrap:wrap}
.brand{display:flex; align-items:center; gap:10px; font-weight:800; font-size:19px; flex:0 0 auto}
.brand-mark{color:var(--brand); font-size:24px}
.brand-text small{display:block; font-weight:500; font-size:11px; color:var(--muted); letter-spacing:.3px}
.nav{display:flex; align-items:center; gap:6px; margin-left:8px; flex:1 1 auto; flex-wrap:wrap}
.nav-link{
  padding:7px 14px; border-radius:999px; font-size:14.5px; font-weight:600; color:var(--ink);
  transition:.16s; white-space:nowrap;
}
.nav-link:hover{background:#eef2ff; color:var(--brand)}
.nav-link.active{background:var(--brand); color:#fff}
.apply-btn{
  flex:0 0 auto; padding:9px 18px; border-radius:999px; font-weight:700; font-size:14px;
  background:linear-gradient(135deg,var(--accent),#ef4444); color:#fff; box-shadow:var(--shadow); transition:.16s;
}
.apply-btn:hover{filter:brightness(1.05); transform:translateY(-1px)}

/* 首页 hero：仅搜索区，渐变背景全屏宽；内部 .wrap 约束内容与下方同宽 */
.hero{
  background:linear-gradient(135deg,#eef2ff 0%,#e0f2fe 100%);
  width:100vw; margin-left:calc(50% - 50vw); padding:24px 0 28px; margin-bottom:4px;
}
.home-search{text-align:center; padding:4px 0 2px; margin-bottom:14px}
.stats{text-align:center; color:var(--muted); font-size:14.5px; margin-bottom:10px}
.stats b{color:var(--brand); font-size:16px}
/* 搜索框 + 按钮：恢复为固定居中宽度 */
.search{display:flex; gap:8px; max-width:660px; margin:0 auto}
.search input{
  flex:1; padding:11px 16px; border:1px solid var(--line); border-radius:999px;
  font-size:14px; outline:none; background:#fff; transition:.2s;
}
.search input:focus{border-color:var(--brand); box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.search button{
  padding:11px 22px; border:0; border-radius:999px; background:var(--brand); color:#fff;
  font-size:14px; cursor:pointer; font-weight:600;
}
.search button:hover{background:#1d4ed8}

main.wrap{padding-top:22px; padding-bottom:40px; min-height:60vh}

/* ===== 通用区块标题 ===== */
.section-title{display:flex; align-items:baseline; gap:10px; margin:28px 0 14px}
.section-title h2{font-size:18px; margin:0}
.section-title .more{margin-left:auto; color:var(--brand); font-size:13px}

/* ===== Banner（首页 2 个，1 排） ===== */
.banners{display:grid; grid-template-columns:repeat(2,1fr); gap:14px; margin-top:8px}
.banner{
  position:relative; border-radius:var(--radius); min-height:140px; overflow:hidden;
  display:flex; flex-direction:column; justify-content:flex-end; padding:20px; color:#fff;
  box-shadow:var(--shadow); transition:.18s;
}
.banner:hover{transform:translateY(-3px)}
.banner h3{margin:0 0 5px; font-size:19px; text-shadow:0 1px 4px rgba(0,0,0,.25)}
.banner p{margin:0; font-size:13.5px; opacity:.94; text-shadow:0 1px 4px rgba(0,0,0,.25)}

/* ===== 热门公司横版卡片（LOGO左 + 信息右） ===== */
.hot-list{display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-top:8px}
.hot-card{
  display:flex; align-items:center; gap:14px; padding:10px 14px;
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  box-shadow:var(--shadow); transition:.18s; cursor:pointer; height:100%;
}
.hot-card:hover{border-color:var(--brand); transform:translateY(-2px)}
.h-logo-box{flex:0 0 80px; width:80px; height:80px; border-radius:12px; overflow:hidden;
  background:#fff; border:1px solid var(--line); display:flex; align-items:center; justify-content:center}
.h-logo-box .h-logo{width:80px; height:80px; object-fit:contain; border-radius:12px}
.h-logo-box .h-avatar{width:80px; height:80px; border-radius:12px; display:none;
  align-items:center; justify-content:center; color:#fff; font-weight:800; font-size:30px;
  background:linear-gradient(135deg,var(--brand),var(--brand2))}
.hot-card .h-body{min-width:0; flex:1}
.hot-card .name{font-weight:700; font-size:15px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis}
.hot-card .intro{color:var(--muted); font-size:12.5px; margin-top:3px; line-height:1.5;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden}

/* 原有卡片网格（用于分类页、搜索结果） */
.hot-grid{grid-template-columns:repeat(5,1fr)}
.cat-grid{grid-template-columns:repeat(4,1fr)}
/* 分类页企业列表：PC 每行 3 个（需求指定） */
.cat-co-grid{grid-template-columns:repeat(3,1fr)}
/* 搜索结果：PC 每行 3 个 */
.search-grid{grid-template-columns:repeat(3,1fr)}
.co-grid{grid-template-columns:repeat(4,1fr)}
.grid{display:grid; gap:14px}

.card{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  padding:14px; box-shadow:var(--shadow); transition:.18s; display:flex; gap:12px; align-items:flex-start;
}
.card:hover{border-color:var(--brand); transform:translateY(-2px)}
.card .avatar{
  width:44px; height:44px; border-radius:11px; flex:0 0 44px; display:flex; align-items:center; justify-content:center;
  color:#fff; font-weight:800; font-size:17px;
}
.card .body{min-width:0}
.card .name{font-weight:700; font-size:15px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis}
.card .intro{color:var(--muted); font-size:12.5px; margin-top:3px; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden}

/* 分类卡（带数量） */
.cat-card{justify-content:space-between; align-items:center; cursor:pointer}
.cat-card .meta{display:flex; align-items:center; gap:12px}
.cat-card .ico{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--brand),var(--brand2));font-size:22px;flex:0 0 40px;box-shadow:0 2px 8px rgba(37,99,235,.2)}
.cat-card .count{font-size:13px; color:var(--brand); font-weight:700; background:rgba(37,99,235,.08); padding:3px 10px; border-radius:999px}

/* ===== 分类页 · 行业介绍区 ===== */
.cat-intro{
  background:linear-gradient(135deg,#eef2ff,#f0f9ff); border:1px solid #e0e7ff; border-radius:var(--radius);
  padding:18px 20px; margin:6px 0 4px; color:#374151; font-size:14.5px; line-height:1.7;
}
.cat-intro b{color:var(--brand)}

/* ===== 详情页（上下两区，统一站点宽度） ===== */
.detail-top{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  padding:26px; box-shadow:var(--shadow); display:flex; flex-wrap:wrap; align-items:center; gap:18px;
}
.logo-box{position:relative; width:150px; height:150px; flex:0 0 150px}
.logo-box .logo{width:150px; height:150px; border-radius:20px; object-fit:contain; background:#fff; border:1px solid var(--line)}
.logo-box .avatar{
  position:absolute; inset:0; width:150px; height:150px; border-radius:20px; display:none;
  align-items:center; justify-content:center; color:#fff; font-weight:800; font-size:52px;
}
.detail-top .info{flex:1 1 280px; min-width:0}
.detail-top h1{margin:0; font-size:24px}
.detail-top .intro{color:var(--muted); font-size:14px; margin-top:6px}
.detail-top .top-actions{flex:0 0 auto}
.btn-visit{
  display:inline-block; padding:11px 20px; border-radius:999px; background:var(--brand); color:#fff;
  font-weight:700; font-size:14px; box-shadow:var(--shadow); transition:.16s; white-space:nowrap;
}
.btn-visit:hover{background:#1d4ed8}
.tags{display:flex; flex-wrap:wrap; gap:8px; margin-top:14px}
.tag{background:#eef2ff; color:var(--brand); padding:5px 12px; border-radius:999px; font-size:13px; border:1px solid #e0e7ff}
.tag:hover{background:var(--brand); color:#fff}

/* 元信息字段（成立·总部） */
.meta-combined{color:var(--muted); font-size:13px; margin-top:8px; padding:6px 12px; background:#f0f4ff; border-radius:8px; display:inline-block}

/* 搜索结果提示 */
.search-hint{color:var(--muted); font-size:13px; margin-top:12px; padding:8px 12px; background:#f9fafb; border-radius:8px}

.detail-bottom{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  padding:26px; box-shadow:var(--shadow); margin-top:18px;
}
.detail-bottom h2{font-size:16px; margin:0 0 10px; padding-left:10px; border-left:4px solid var(--brand)}
.detail-bottom h2 + h2{margin-top:24px}
.detail-bottom .prose{color:#374151; font-size:15px; line-height:1.8}
.detail-bottom .prods{margin:0; padding-left:20px; color:#374151; font-size:15px; line-height:1.9}
.detail-bottom .prods li{margin:2px 0}
.muted{color:var(--muted); font-size:14px}

/* ===== 资讯 / 分类列表页 ===== */
.placeholder{
  text-align:center; color:var(--muted); padding:60px 20px; background:var(--card);
  border:1px dashed var(--line); border-radius:var(--radius); font-size:15px;
}

.empty{text-align:center; color:var(--muted); padding:50px 0}
.breadcrumb{color:var(--muted); font-size:13px; margin:4px 0 8px}
.breadcrumb a{color:var(--brand)}
.back{display:inline-block; margin:6px 0 12px; color:var(--muted); font-size:13px}
.back:hover{color:var(--brand)}

.site-footer{border-top:1px solid var(--line); padding:18px; color:var(--muted); font-size:13px; text-align:center}
.site-footer a{color:var(--brand)}

/* ===== 响应式 ===== */
@media (max-width:1100px){
  .hot-grid{grid-template-columns:repeat(4,1fr)}
  .hot-list{grid-template-columns:repeat(3,1fr)}
  .cat-grid{grid-template-columns:repeat(3,1fr)}
  .cat-co-grid{grid-template-columns:repeat(3,1fr)}
  .search-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:900px){
  .banners{grid-template-columns:1fr}
  .hot-grid{grid-template-columns:repeat(3,1fr)}
  .hot-list{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .cat-co-grid{grid-template-columns:repeat(2,1fr)}
  .search-grid{grid-template-columns:repeat(2,1fr)}
  .co-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
  .header-inner{gap:10px}
  .nav{order:3; width:100%; margin-left:0}
  .apply-btn{order:2}
  .hot-grid,.hot-list,.cat-grid,.cat-co-grid,.co-grid,.search-grid{grid-template-columns:1fr}
  .banners{grid-template-columns:1fr}
  .detail-top{padding:20px}
}