:root{
  --blue:#17559c;
  --blue-deep:#0e3568;
  --blue-lite:#2a7ad6;
  --gold:#c9a227;
  --t:#333;--t2:#666;--t3:#999;
  --line:#e6e9ef;--soft:#f5f7fa;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",Arial,sans-serif;color:var(--t);line-height:1.7;background:#fff}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}

/* ============ top bar (搜索 + 电话，照 stbnzb) ============ */
.topbar{background:var(--blue-deep);color:#c3d3e6;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:38px;gap:16px}
.topbar a:hover{color:#fff}
.topsearch{display:flex;align-items:center;gap:8px}
.topsearch select,.topsearch input{height:28px;border:none;outline:none;font-size:13px;padding:0 10px;border-radius:2px}
.topsearch select{border-radius:2px 0 0 2px;background:#fff}
.topsearch input{width:170px;border-radius:0 2px 2px 0}
.topsearch button{height:28px;padding:0 14px;border:none;background:var(--gold);color:#fff;cursor:pointer;font-size:13px;border-radius:2px}
.topphone{color:var(--gold);font-weight:700;font-size:15px}

/* ============ header / nav ============ */
.hdr{background:#fff;border-bottom:2px solid var(--blue)}
.hdr .wrap{display:flex;justify-content:space-between;align-items:center;padding:14px 0;gap:20px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:12px}
.logo-badge{width:58px;height:58px;background:linear-gradient(135deg,var(--blue),var(--blue-deep));color:#fff;border-radius:4px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:20px;letter-spacing:1px;text-align:center;line-height:1.2}
.logo-txt .cn{font-size:23px;font-weight:700;color:var(--blue-deep);letter-spacing:2px}
.logo-txt .en{font-size:11px;color:var(--t3);letter-spacing:1.5px}
.logo-img{height:54px;width:auto}
.nav{display:flex;gap:2px;flex-wrap:wrap}
.nav a{display:block;padding:11px 15px;font-size:15.5px;color:#444;border-radius:3px}
.nav a:hover,.nav a.on{background:var(--blue);color:#fff}

/* ============ hero swiper (照 stbnzb：轮播 + 左右箭头 + 圆点) ============ */
.hero{position:relative;height:400px;overflow:hidden;background:var(--blue-deep)}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .7s;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;padding:0 20px}
.slide.on{opacity:1}
.slide h2{font-size:40px;letter-spacing:4px;font-weight:700;margin-bottom:14px}
.slide p{font-size:17px;opacity:.9;letter-spacing:2px}
.slide .tag{display:inline-block;margin-top:22px;border:1px solid rgba(255,255,255,.5);padding:7px 24px;border-radius:30px;font-size:14.5px;letter-spacing:1px}
.s1{background:linear-gradient(120deg,#0e3568 0%,#17559c 60%,#2a7ad6 100%)}
.s2{background:linear-gradient(120deg,#123c6e 0%,#1d6fb5 70%,#39a3c9 100%)}
.s3{background:linear-gradient(120deg,#0f2f5c 0%,#1b4f8f 60%,#2f7fc4 100%)}
.arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;background:rgba(0,0,0,.28);color:#fff;border:none;border-radius:50%;cursor:pointer;font-size:22px;z-index:5}
.arrow:hover{background:rgba(0,0,0,.5)}
.arrow.l{left:20px}.arrow.r{right:20px}
.dots{position:absolute;bottom:20px;left:0;right:0;display:flex;justify-content:center;gap:9px;z-index:5}
.dots i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.45);cursor:pointer}
.dots i.on{background:var(--gold);width:24px;border-radius:5px}

/* ============ 通用板块（英文小标签 + 中文大标题，照 stbnzb） ============ */
.sec{padding:66px 0}
.sec.soft{background:var(--soft)}
.shead{text-align:center;margin-bottom:42px}
.shead .en{font-size:12px;color:var(--t3);letter-spacing:4px;text-transform:uppercase}
.shead h3{font-size:27px;color:var(--blue-deep);letter-spacing:3px;margin-top:6px;display:inline-block;position:relative;padding-bottom:12px}
.shead h3::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:0;width:48px;height:3px;background:var(--gold)}
.more{display:inline-block;margin-top:20px;font-size:13px;color:var(--t2);border:1px solid var(--line);padding:5px 16px;border-radius:2px;background:#fff}
.more:hover{color:var(--blue);border-color:var(--blue)}

/* ============ ABOUT US ============ */
.about{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:start}
.about-txt p{font-size:15px;color:#444;text-indent:2em;text-align:justify;margin-bottom:13px}
.about-side{background:#fff;border-top:4px solid var(--gold);border-radius:4px;padding:24px;box-shadow:0 5px 20px rgba(23,85,156,.09)}
.about-side h4{color:var(--blue-deep);font-size:17px;margin-bottom:12px;letter-spacing:1px}
.about-side li{padding:9px 0 9px 20px;position:relative;border-bottom:1px dashed var(--line);font-size:14.5px;color:#555}
.about-side li:last-child{border:none}
.about-side li::before{content:"";position:absolute;left:4px;top:18px;width:6px;height:6px;background:var(--gold);border-radius:50%}

/* ============ SERVICE ITEMS 卡片 ============ */
.svc{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.svc .card{background:#fff;border:1px solid var(--line);border-radius:4px;padding:28px 18px;text-align:center;transition:.25s}
.svc .card:hover{transform:translateY(-6px);box-shadow:0 12px 26px rgba(23,85,156,.14);border-color:var(--blue-lite)}
.svc .ico{width:60px;height:60px;margin:0 auto 14px;border-radius:50%;background:linear-gradient(135deg,#eaf2fd,#d6e6fa);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700}
.svc h5{font-size:16.5px;color:var(--blue-deep);margin-bottom:8px}
.svc .card p{font-size:13px;color:var(--t2);line-height:1.7}

/* ============ 招标动态 Tab + 列表（日期块，照 stbnzb） ============ */
.tabs{display:flex;justify-content:center;gap:8px;margin-bottom:26px;flex-wrap:wrap}
.tabs button{padding:9px 28px;border:1px solid var(--blue);background:#fff;color:var(--blue);border-radius:3px;cursor:pointer;font-size:15px;transition:.2s}
.tabs button:hover{background:#eaf2fd}
.tabs button.on{background:var(--blue);color:#fff}
.pane{display:none}.pane.on{display:block}
.nl{background:#fff;border:1px solid var(--line);border-radius:4px;overflow:hidden}
.nl li{display:flex;align-items:center;gap:18px;padding:14px 20px;border-bottom:1px solid var(--line);transition:.2s}
.nl li:last-child{border:none}
.nl li:hover{background:#f7fbff}
.nl .dt{flex-shrink:0;width:74px;text-align:center;background:var(--soft);border-radius:3px;padding:6px 0}
.nl .dt b{display:block;font-size:19px;color:var(--blue-deep);line-height:1.2}
.nl .dt em{display:block;font-size:11.5px;color:var(--t3);font-style:normal}
.nl .tt{flex:1;min-width:0;font-size:15px;color:#333;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nl li:hover .tt{color:var(--blue)}

/* ============ COMPANY PERFORMANCE 业绩 ============ */
.perf{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.perf .pc{background:#fff;border:1px solid var(--line);border-radius:4px;padding:24px 14px;text-align:center;transition:.25s}
.perf .pc:hover{border-color:var(--gold);box-shadow:0 10px 22px rgba(201,162,39,.16)}
.perf .pc .n{font-size:26px;font-weight:700;color:var(--gold);line-height:1.2}
.perf .pc .l{font-size:13.5px;color:#555;margin-top:8px;line-height:1.6}

/* ============ 政策法规 + 资讯 ============ */
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:30px}
.two>div{min-width:0}

/* ============ 友情链接 ============ */
.frlinks{display:flex;flex-wrap:wrap;gap:11px;justify-content:center}
.frlinks a{padding:8px 17px;border:1px solid var(--line);border-radius:3px;font-size:13.5px;color:#555;background:#fff;transition:.2s}
.frlinks a:hover{border-color:var(--blue);color:var(--blue);box-shadow:0 3px 10px rgba(23,85,156,.12)}

/* ============ footer ============ */
.ftr{background:var(--blue-deep);color:#b6c7da;padding:40px 0 18px;font-size:14px}
.ftr .fgrid{display:grid;grid-template-columns:1.2fr 1fr 1.2fr;gap:32px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.13)}
.ftr h6{color:#fff;font-size:16px;margin-bottom:14px;letter-spacing:1px}
.ftr p,.ftr li{color:#b6c7da;line-height:2}
.ftr .mark{font-weight:700;color:#fff;font-size:20px;letter-spacing:2px;margin-bottom:10px}
.fbottom{text-align:center;padding-top:18px;font-size:13px;color:#8ba3bd}
.w8{color:var(--gold);font-weight:600}

@media(max-width:960px){
  .about,.two{grid-template-columns:1fr}
  .svc{grid-template-columns:repeat(2,1fr)}
  .perf{grid-template-columns:repeat(2,1fr)}
  .ftr .fgrid{grid-template-columns:1fr}
  .slide h2{font-size:26px}
  .hero{height:320px}
  .nav a{padding:9px 10px;font-size:14px}
  .topsearch{display:none}
  .nl li{flex-direction:column;align-items:flex-start;gap:7px}
  .nl .tt{white-space:normal}
}
.lk{cursor:pointer}.lk .go{margin-left:auto;font-size:12.5px;color:var(--blue);opacity:0;white-space:nowrap;transition:.2s}
.lk:hover .go{opacity:1}
.lk .hit{margin-left:14px;font-size:12px;color:#9aa7b6;white-space:nowrap}
.lk .hit b{color:var(--blue);font-weight:600}
.modal-mask{position:fixed;inset:0;background:rgba(8,30,60,.55);backdrop-filter:blur(3px);z-index:9999;display:none;align-items:center;justify-content:center;padding:24px}
.modal-mask.on{display:flex;animation:fadeIn .22s ease}
.modal{background:#fff;border-radius:10px;max-width:760px;width:100%;max-height:82vh;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 24px 60px rgba(0,0,0,.32);animation:up .26s cubic-bezier(.2,.9,.3,1)}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes up{from{opacity:0;transform:translateY(28px) scale(.98)}to{opacity:1;transform:none}}
.modal-top{padding:22px 26px 14px;border-bottom:1px solid var(--line);position:relative;background:linear-gradient(180deg,#f7fafd,#fff)}
.modal-tag{display:inline-block;font-size:12px;color:#fff;background:var(--blue);padding:3px 11px;border-radius:3px;letter-spacing:1px}
.modal-top h3{font-size:20px;color:var(--blue-deep);margin:10px 0 8px;line-height:1.5;letter-spacing:.5px}
.modal-meta{font-size:12.5px;color:var(--t3)}
.modal-x{position:absolute;top:14px;right:16px;width:32px;height:32px;border:none;background:#eef2f7;border-radius:50%;cursor:pointer;font-size:17px;color:#666;line-height:1}
.modal-x:hover{background:var(--blue);color:#fff}
.modal-body{padding:18px 26px 26px;overflow-y:auto}
.modal-body p{font-size:14.5px;color:#444;line-height:1.95;margin-bottom:11px;text-align:justify}
.modal-foot{border-top:1px solid var(--line);padding:12px 26px;font-size:12.5px;color:#8a97a6;background:#fafbfc}
@media(max-width:600px){.modal-top{padding:18px 18px 12px}.modal-body{padding:14px 18px 20px}.modal-top h3{font-size:17px}}

/* ===== 弹窗底栏：下载按钮 ===== */
.modal-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.modal-foot>span{flex:1;min-width:190px}
.dlbtn{border:1px solid var(--blue);background:#fff;color:var(--blue);font-size:12.5px;padding:6px 14px;border-radius:4px;cursor:pointer;white-space:nowrap;transition:.18s;font-family:inherit}
.dlbtn:hover{background:var(--blue);color:#fff}
.dlbtn:active{transform:translateY(1px)}

/* ===== 站内搜索结果 ===== */
.smodal{max-width:720px}
.slist{display:flex;flex-direction:column;gap:2px}
.sres{display:flex;align-items:baseline;gap:10px;padding:11px 12px;border-radius:6px;cursor:pointer;transition:.15s}
.sres:hover{background:#f1f6fc}
.sres .scat{flex:none;font-size:11.5px;color:#fff;background:var(--blue);padding:2px 8px;border-radius:3px;line-height:1.7}
.sres .stt{flex:1;min-width:0;font-size:14.5px;color:#333;line-height:1.6;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.sres:hover .stt{color:var(--blue-deep)}
.sres .sdt{flex:none;font-size:12.5px;color:#9aa7b6;font-variant-numeric:tabular-nums}
.sempty{text-align:center;color:#8a97a6;font-size:14px;padding:38px 0}
@media(max-width:600px){.sres .sdt{display:none}}