/* 门户样式：对齐参考站（天蓝渐变头部 + 搜索条 + 双栏栅格 + 卡片） */
:root{
  --bg:#f8fafc;
  --paper:#fff;
  --ink:#1e293b;
  --muted:#64748b;
  --line:#e2e8f0;
  --primary:#0ea5e9;
  --primary-dark:#0284c7;
  --accent:#f59e0b;
  --soft:#f1f5f9;
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 1px 3px rgba(15,23,42,.06),0 10px 24px -18px rgba(15,23,42,.3);
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{overflow-x:hidden}body{font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65;font-size:14px}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.wrap{max-width:1280px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}

/* 测试环境提示 */
.test-strip{background:#fffbeb;color:#92400e;border-bottom:1px solid #fcd34d;padding:6px 12px;text-align:center;font-size:12px}

/* 头部 */
.header{background:linear-gradient(135deg,var(--primary),var(--primary-dark));position:sticky;top:0;z-index:100;box-shadow:0 2px 10px rgba(2,132,199,.18)}
.header-inner{height:60px;display:flex;align-items:center;gap:18px;color:#fff}
.brand{display:flex;align-items:center;gap:10px;color:#fff;flex-shrink:0}
.brand-mark{width:34px;height:34px;border-radius:10px;background:rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px}
.brand-text strong{display:block;font-size:17px;line-height:1.2}
.brand-text small{display:block;font-size:11px;opacity:.85;line-height:1.4}
.nav{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
.nav a{font-size:13px;padding:6px 11px;border-radius:6px;background:rgba(255,255,255,.12);white-space:nowrap}
.nav a:hover,.nav a.is-active{background:rgba(255,255,255,.26)}
.header-phone{font-size:14px;font-weight:600;background:rgba(255,255,255,.16);padding:7px 12px;border-radius:8px;white-space:nowrap}
.header-phone:hover{background:rgba(255,255,255,.28)}

/* 搜索条 */
.search-bar{background:var(--paper);border-bottom:1px solid var(--line);padding:16px 0}
.search-wrap{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.search-box{flex:1;min-width:280px;display:flex;gap:10px}
.search-box input{flex:1;height:44px;padding:0 18px;border:2px solid var(--line);border-radius:var(--radius);font-size:14px;outline:none;transition:border-color .2s;background:#fff}
.search-box input:focus{border-color:var(--primary)}
.search-box button{height:44px;padding:0 26px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;border:0;border-radius:var(--radius);font-size:14px;font-weight:600;cursor:pointer}
.search-box button:hover{filter:brightness(1.05)}
.hot-keywords{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.hot-keywords span{font-size:13px;color:var(--muted)}
.hot-keywords a{font-size:12.5px;padding:5px 12px;background:var(--bg);border-radius:20px;color:var(--muted);border:1px solid var(--line)}
.hot-keywords a:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

/* 主体双栏 */
.main{padding:22px 0}
.main-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:22px;align-items:start}
.content-left{display:flex;flex-direction:column;gap:20px;min-width:0}
.sidebar{display:flex;flex-direction:column;gap:16px;position:sticky;top:76px}

/* 焦点区 */
.hero-section{display:grid;grid-template-columns:1.35fr 1fr;gap:14px}
.hero-main{position:relative;border-radius:var(--radius);overflow:hidden;min-height:300px;display:block;background:#0f172a}
.hero-main .thumb{position:absolute;inset:0}
.hero-overlay{position:absolute;inset:auto 0 0 0;padding:18px;background:linear-gradient(180deg,rgba(15,23,42,0),rgba(15,23,42,.88));color:#fff}
.hero-overlay h2{font-size:20px;line-height:1.45;margin:6px 0 6px}
.hero-overlay p{font-size:13px;color:#e2e8f0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hero-tag{display:inline-block;background:var(--accent);color:#fff;font-size:11px;padding:2px 8px;border-radius:20px}
.hero-meta{display:block;margin-top:8px;font-size:12px;color:#cbd5e1}
.hero-side{display:flex;flex-direction:column;gap:10px}
.hero-item{display:flex;gap:10px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:10px;transition:.2s}
.hero-item:hover{border-color:#7dd3fc;box-shadow:var(--shadow)}
.hero-item .thumb{width:72px;height:58px;flex-shrink:0;border-radius:8px}
.hero-item-text h4{font-size:13.5px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hero-item-text span{display:block;margin-top:4px;font-size:11.5px;color:var(--muted)}

/* 缩略图占位 */
.thumb{background:linear-gradient(135deg,#bae6fd,#0ea5e9);position:relative;overflow:hidden;border-radius:var(--radius-sm)}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb-text{display:flex;align-items:center;justify-content:center}
.thumb-text span{color:#fff;font-size:26px;font-weight:700;opacity:.9;text-shadow:0 2px 8px rgba(2,132,199,.35)}
.hero-thumb span{font-size:56px}

/* 数据条 */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:14px 10px}
.stat-strip div{text-align:center;border-right:1px solid var(--line)}
.stat-strip div:last-child{border-right:0}
.stat-strip b{display:block;font-size:20px;color:var(--primary-dark)}
.stat-strip span{font-size:12px;color:var(--muted)}

/* 板块 */
.section{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px 18px}
.section-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.section-header h3{font-size:16px;color:var(--ink);display:flex;align-items:center;gap:8px}
.section-header h3::before{content:"";width:4px;height:16px;border-radius:2px;background:linear-gradient(180deg,var(--primary),var(--primary-dark))}
.section-header a{font-size:12.5px;color:var(--primary-dark)}

/* 新闻卡片 */
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.news-card{display:flex;gap:10px;border:1px solid var(--line);border-radius:var(--radius-sm);padding:10px;transition:.2s;background:#fff}
.news-card:hover{border-color:#7dd3fc;box-shadow:var(--shadow)}
.news-card .news-thumb{width:92px;height:68px;flex-shrink:0}
.news-card-body h4{font-size:13.5px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card-body p{font-size:12px;color:var(--muted);margin-top:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card-main{grid-column:1/-1}
.news-card-main .news-thumb{width:180px;height:120px}
.news-card-main .news-card-body h4{font-size:16px}
.meta{display:flex;gap:12px;flex-wrap:wrap;margin-top:6px;font-size:11.5px;color:#94a3b8}

/* 新闻列表行 */
.news-list{display:flex;flex-direction:column}
.news-row{display:block;padding:12px 0;border-bottom:1px dashed var(--line)}
.news-row:last-child{border-bottom:0}
.news-row h4{font-size:14px;line-height:1.5}
.news-row:hover h4{color:var(--primary-dark)}
.news-row p{font-size:12.5px;color:var(--muted);margin-top:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 企业卡片 */
.company-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.company-grid-list{grid-template-columns:repeat(2,minmax(0,1fr))}
.company-card{display:flex;gap:10px;align-items:center;border:1px solid var(--line);border-radius:var(--radius-sm);padding:10px;background:#fff;transition:.2s}
.company-card:hover{border-color:#7dd3fc;box-shadow:var(--shadow)}
.company-avatar{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,#e0f2fe,#7dd3fc);color:#0369a1;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}
.company-info{min-width:0}
.company-info b{display:block;font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.company-info small{display:block;font-size:11.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* 侧栏 */
.widget{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.widget-header h4{font-size:14.5px;margin-bottom:10px;display:flex;align-items:center;gap:6px}
.chip-grid{display:flex;flex-wrap:wrap;gap:7px}
.chip{display:inline-flex;align-items:center;gap:5px;font-size:12.5px;padding:5px 10px;border-radius:20px;background:var(--soft);color:#334155;border:1px solid transparent}
.chip:hover{background:#e0f2fe;color:#0369a1;border-color:#bae6fd}
.chip em{font-style:normal;font-size:11px;color:#94a3b8}
.rank-list li{display:flex;gap:8px;align-items:flex-start;padding:7px 0;border-bottom:1px dashed var(--line);font-size:12.8px}
.rank-list li:last-child{border-bottom:0}
.rank-num{width:18px;height:18px;border-radius:5px;background:var(--soft);color:var(--muted);font-size:11px;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}
.rank-num.is-top{background:#fff7ed;color:#c2410c}
.rank-list a{flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:#334155}
.rank-list a:hover{color:var(--primary-dark)}
.rank-list em{font-style:normal;font-size:11px;color:#94a3b8}
.widget-cta{background:linear-gradient(135deg,#0ea5e9,#0284c7);color:#fff;border:0}
.widget-cta h4{font-size:15px}
.widget-cta p{font-size:12.5px;color:#e0f2fe;margin:6px 0 12px}
.btn-primary{display:inline-block;background:#fff;color:#0369a1;font-size:13px;font-weight:600;padding:8px 14px;border-radius:8px}
.btn-primary:hover{background:#f0f9ff}

/* 最新站点 */
.portal-fresh-sites{background:var(--paper);border-top:1px solid var(--line);padding:28px 0;margin-top:8px}
.pfs-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:14px}
.pfs-head h2{font-size:18px}
.pfs-head p{font-size:12.5px;color:var(--muted);margin-top:4px}
.pfs-head a{font-size:12.5px;color:var(--primary-dark)}
.pfs-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.pfs-card{border:1px solid var(--line);border-radius:var(--radius-sm);padding:10px 12px;background:#f8fafc;transition:.2s}
.pfs-card:hover{background:#fff;border-color:#7dd3fc;box-shadow:var(--shadow)}
.pfs-card b{display:block;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pfs-card span{display:block;font-size:11.5px;color:var(--muted);margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pfs-card small{display:block;font-size:11px;color:#94a3b8;margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* 列表页 */
.list-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:22px;align-items:start}
.list-main{display:flex;flex-direction:column;gap:16px;min-width:0}
.page-head{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px}
.page-head h1{font-size:20px}
.page-head p{font-size:13px;color:var(--muted);margin-top:6px}
.crumbs{display:flex;gap:6px;align-items:center;font-size:12.5px;color:var(--muted);padding:2px 4px}
.crumbs b{color:var(--ink)}
.filter-chips{display:flex;flex-wrap:wrap;gap:8px}
.filter-chips a{font-size:12.5px;padding:6px 14px;background:var(--paper);border:1px solid var(--line);border-radius:20px;color:#334155}
.filter-chips a:hover,.filter-chips a.is-active{background:var(--primary);border-color:var(--primary);color:#fff}
.pager{display:flex;justify-content:center;gap:6px;flex-wrap:wrap;padding:6px 0}
.pager a{min-width:34px;height:34px;padding:0 10px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:8px;background:#fff;font-size:13px;color:#334155}
.pager a:hover,.pager a.is-active{background:var(--primary);border-color:var(--primary);color:#fff}

/* 产品列表 */
.product-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.product-row{display:flex;gap:10px;align-items:center;border:1px solid var(--line);border-radius:var(--radius-sm);padding:10px;background:#fff;transition:.2s}
.product-row:hover{border-color:#7dd3fc;box-shadow:var(--shadow)}
.product-thumb{width:44px;height:44px;border-radius:10px;background:linear-gradient(135deg,#fef3c7,#fbbf24);color:#92400e;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}
.product-body{min-width:0;flex:1}
.product-body b{display:block;font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.product-body small{display:block;font-size:11.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}
.product-body em{display:flex;justify-content:space-between;gap:8px;font-style:normal;margin-top:4px;font-size:11.5px;color:#94a3b8}
.product-body .price{color:#dc2626;font-weight:600}

/* 地区 */
.province-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px}
.province-chip{display:flex;justify-content:space-between;align-items:center;gap:8px;border:1px solid var(--line);border-radius:var(--radius-sm);padding:9px 12px;background:#fff;font-size:13px}
.province-chip:hover{border-color:#7dd3fc;background:#f0f9ff}
.province-chip em{font-style:normal;font-size:11.5px;color:#94a3b8}
.link-list{display:flex;flex-wrap:wrap;gap:8px}
.link-list a{font-size:12.5px;padding:5px 10px;border-radius:6px;background:var(--soft);color:#334155}
.link-list a:hover{background:#e0f2fe;color:#0369a1}

/* 文本页 */
.topic-intro{background:#f0f9ff;border:1px solid #bae6fd;border-radius:var(--radius);padding:14px 16px;font-size:13px;color:#075985;line-height:1.8}
.prose-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;font-size:14px;line-height:2;color:#334155}
.prose-card p{margin-bottom:10px}
.empty{background:#fff;border:1px dashed var(--line);border-radius:var(--radius-sm);padding:26px;text-align:center;color:var(--muted);font-size:13px}

/* 页脚 */
.footer{background:#0f172a;color:#cbd5e1;padding:32px 0 20px;margin-top:26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:24px}
.footer-brand h3{color:#fff;font-size:17px;margin-bottom:8px}
.footer-brand p{font-size:12.5px;line-height:1.8;color:#94a3b8}
.footer-phone{margin-top:10px;color:#e2e8f0}
.footer-phone a{color:#7dd3fc}
.footer-links h4{color:#fff;font-size:13.5px;margin-bottom:10px}
.footer-links li{font-size:12.5px;line-height:2;color:#94a3b8}
.footer-links a:hover{color:#7dd3fc}
.friend-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;padding-top:14px;border-top:1px solid #1e293b;font-size:12px;color:#94a3b8}
.friend-links a{color:#cbd5e1}
.friend-links a:hover{color:#7dd3fc}
.footer-bottom{margin-top:14px;padding-top:12px;border-top:1px solid #1e293b;font-size:11.5px;color:#64748b;line-height:1.8;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.footer-bottom a{color:#7dd3fc}

/* 响应式 */
@media (max-width:1100px){
  .main-grid,.list-grid{grid-template-columns:1fr}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap}
  .widget{flex:1;min-width:260px}
  .pfs-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:780px){
  .wrap{padding:0 14px}
  .header-inner{height:auto;padding:10px 0;flex-wrap:wrap}
  .nav{order:3;width:100%;justify-content:flex-start;margin-left:0;flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px}
  .nav a{flex:0 0 auto}
  .header-phone{margin-left:auto;font-size:13px;padding:6px 10px}
  .search-box{min-width:0}
  .search-box button{padding:0 16px}
  .hero-section{grid-template-columns:1fr}
  .hero-main{min-height:220px}
  .hero-overlay h2{font-size:17px}
  .news-grid,.product-list,.company-grid,.company-grid-list{grid-template-columns:1fr}
  .news-card-main .news-thumb{width:110px;height:84px}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:10px}
  .stat-strip div:nth-child(2){border-right:0}
  .pfs-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .province-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .search-wrap{flex-direction:column;align-items:stretch}
  .search-box{flex-direction:column}
  .search-box button{width:100%}
  .hot-keywords{justify-content:flex-start}
  .header-phone{display:none}
  .pfs-grid,.province-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .news-card-main .news-thumb{display:none}
}