*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",Arial,sans-serif;color:#333;font-size:15px;line-height:1.7;background:#fff}
a{text-decoration:none;color:#0e6ba8}
img{max-width:100%;display:block;border:0}
ul,ol{list-style:none}
.spd-wrap{width:1200px;max-width:94%;margin:0 auto}
.spd-topbar{background:#0a4f7a;color:#cfe6f5;font-size:13px;padding:7px 0}
.spd-topbar .spd-wrap{display:flex;justify-content:space-between;align-items:center}
.spd-topbar a{color:#fff;font-weight:600}
.spd-header{background:#fff;position:sticky;top:0;z-index:100;box-shadow:0 2px 8px rgba(0,0,0,.06)}
.spd-header .spd-wrap{display:flex;align-items:center;justify-content:space-between;height:78px}
.spd-logo img{height:52px;width:auto}
.spd-nav>ul{display:flex;gap:6px}
.spd-nav>ul>li{position:relative}
.spd-nav>ul>li>a{display:block;padding:28px 22px;color:#222;font-size:16px;font-weight:600;transition:color .2s}
.spd-nav>ul>li>a:hover,.spd-nav>ul>li.spd-active>a{color:#0e6ba8}
.spd-nav>ul>li>a::after{content:"";display:block;width:0;height:3px;background:#0e6ba8;margin:6px auto 0;transition:width .25s}
.spd-nav>ul>li>a:hover::after,.spd-nav>ul>li.spd-active>a::after{width:24px}
.spd-burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.spd-burger span{width:26px;height:3px;background:#0e6ba8;border-radius:2px}
.spd-hero{position:relative;overflow:hidden;background:#0e6ba8}
.spd-hero-slide{display:none;position:relative;height:460px}
.spd-hero-slide.spd-show{display:block}
.spd-hero-slide img{width:100%;height:460px;object-fit:cover}
.spd-hero-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,50,80,.75) 0%,rgba(14,107,168,.35) 60%,rgba(14,107,168,0) 100%)}
.spd-hero-text{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);color:#fff;width:1200px;max-width:94%;text-align:left}
.spd-hero-text h2{font-size:42px;line-height:1.3;margin-bottom:18px;font-weight:700;text-shadow:0 2px 12px rgba(0,0,0,.3)}
.spd-hero-text p{font-size:18px;margin-bottom:26px;opacity:.95}
.spd-btn{display:inline-block;padding:12px 34px;background:#f0a500;color:#fff;border-radius:3px;font-size:15px;font-weight:600;transition:background .2s}
.spd-btn:hover{background:#d89400;color:#fff}
.spd-btn.spd-btn-line{background:transparent;border:2px solid #fff}
.spd-btn.spd-btn-line:hover{background:#fff;color:#0e6ba8}
.spd-section{padding:60px 0}
.spd-section.spd-bg{background:#f5f8fb}
.spd-sec-head{text-align:center;margin-bottom:40px}
.spd-sec-head h3{font-size:30px;color:#1a1a1a;font-weight:700;margin-bottom:10px}
.spd-sec-head h3 span{color:#0e6ba8}
.spd-sec-head p{color:#888;font-size:15px}
.spd-sec-head .spd-line{width:60px;height:3px;background:#0e6ba8;margin:14px auto 0}
.spd-cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.spd-cat-card{background:#fff;border:1px solid #e8eef3;border-radius:6px;overflow:hidden;transition:transform .25s,box-shadow .25s}
.spd-cat-card:hover{transform:translateY(-5px);box-shadow:0 12px 28px rgba(14,107,168,.15)}
.spd-cat-card img{height:180px;width:100%;object-fit:cover}
.spd-cat-card .spd-cat-body{padding:16px 18px}
.spd-cat-card h4{font-size:17px;color:#222;margin-bottom:6px}
.spd-cat-card p{font-size:13px;color:#888;line-height:1.6}
.spd-prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.spd-prod-card{background:#fff;border-radius:6px;overflow:hidden;border:1px solid #eef2f6;transition:box-shadow .25s}
.spd-prod-card:hover{box-shadow:0 10px 24px rgba(0,0,0,.1)}
.spd-prod-card img{height:200px;width:100%;object-fit:cover}
.spd-prod-card .spd-prod-body{padding:16px}
.spd-prod-card h4{font-size:16px;color:#222;margin-bottom:8px}
.spd-prod-card p{font-size:13px;color:#777;line-height:1.6}
.spd-adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.spd-adv{text-align:center;padding:24px 16px;background:#fff;border-radius:6px}
.spd-adv .spd-adv-ico{width:60px;height:60px;margin:0 auto 14px;border-radius:50%;background:#e6f1f8;display:flex;align-items:center;justify-content:center}
.spd-adv .spd-adv-ico svg{width:30px;height:30px;fill:#0e6ba8}
.spd-adv h4{font-size:17px;color:#222;margin-bottom:8px}
.spd-adv p{font-size:13px;color:#888;line-height:1.6}
.spd-news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.spd-news-card{background:#fff;border-radius:6px;overflow:hidden;border:1px solid #eef2f6}
.spd-news-card img{height:190px;width:100%;object-fit:cover}
.spd-news-card .spd-news-body{padding:18px}
.spd-news-card .spd-date{font-size:12px;color:#0e6ba8;margin-bottom:8px}
.spd-news-card h4{font-size:16px;color:#222;line-height:1.5;margin-bottom:8px}
.spd-news-card p{font-size:13px;color:#777;line-height:1.6}
.spd-cta{background:linear-gradient(120deg,#0a4f7a,#0e6ba8);color:#fff;padding:46px 0;text-align:center}
.spd-cta h3{font-size:26px;margin-bottom:10px}
.spd-cta p{opacity:.9;margin-bottom:20px}
.spd-footer{background:#1a2a38;color:#9fb3c4;padding:50px 0 0;font-size:14px}
.spd-foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:30px;padding-bottom:36px}
.spd-footer h5{color:#fff;font-size:16px;margin-bottom:16px}
.spd-footer ul li{margin-bottom:9px}
.spd-footer a{color:#9fb3c4}
.spd-footer a:hover{color:#fff}
.spd-foot-bottom{border-top:1px solid #2c3e50;padding:16px 0;text-align:center;font-size:13px;color:#7a8fa0}
.spd-bread{background:#f0f4f8;padding:14px 0;font-size:14px;color:#666}
.spd-bread a{color:#0e6ba8}
.spd-page-head{background:linear-gradient(120deg,#0a4f7a,#0e6ba8);color:#fff;padding:50px 0;text-align:center}
.spd-page-head h1{font-size:32px;margin-bottom:8px}
.spd-page-head p{opacity:.9}
.spd-detail{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.spd-detail img{border-radius:6px}
.spd-detail h2{font-size:24px;color:#222;margin-bottom:14px}
.spd-detail .spd-meta{background:#f5f8fb;padding:16px 20px;border-radius:6px;margin:16px 0}
.spd-detail .spd-meta li{padding:5px 0;border-bottom:1px dashed #e0e8ee;font-size:14px}
.spd-detail .spd-meta li:last-child{border:0}
.spd-detail .spd-meta b{color:#0e6ba8;display:inline-block;width:110px}
.spd-article{max-width:860px;margin:0 auto;padding:40px 0}
.spd-article img{border-radius:6px;margin:18px 0}
.spd-article h1{font-size:28px;color:#222;margin-bottom:10px;line-height:1.4}
.spd-article .spd-art-meta{color:#999;font-size:13px;margin-bottom:24px;padding-bottom:14px;border-bottom:1px solid #eee}
.spd-article p{margin-bottom:16px;line-height:1.9;color:#444}
.spd-article h3{font-size:20px;color:#0e6ba8;margin:26px 0 12px}
.spd-list{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.spd-list-item{display:flex;gap:18px;background:#fff;border:1px solid #eef2f6;border-radius:6px;overflow:hidden}
.spd-list-item img{width:220px;height:150px;object-fit:cover;flex-shrink:0}
.spd-list-item .spd-li-body{padding:14px 16px 14px 0}
.spd-list-item h4{font-size:16px;color:#222;margin-bottom:6px}
.spd-list-item p{font-size:13px;color:#888;line-height:1.6}
.spd-404{text-align:center;padding:90px 20px}
.spd-404 .spd-code{font-size:120px;font-weight:800;color:#0e6ba8;line-height:1}
.spd-404 h1{font-size:26px;margin:14px 0}
.spd-404 p{color:#888;margin-bottom:24px}
@media(max-width:992px){
  .spd-cat-grid,.spd-prod-grid,.spd-adv-grid{grid-template-columns:repeat(2,1fr)}
  .spd-news-grid{grid-template-columns:1fr 1fr}
  .spd-foot-grid{grid-template-columns:1fr 1fr}
  .spd-detail{grid-template-columns:1fr}
  .spd-hero-text h2{font-size:30px}
}
@media(max-width:768px){
  .spd-nav{position:fixed;top:78px;left:0;right:0;background:#fff;display:none;box-shadow:0 8px 16px rgba(0,0,0,.1)}
  .spd-nav.spd-open{display:block}
  .spd-nav>ul{flex-direction:column;gap:0}
  .spd-nav>ul>li>a{padding:14px 20px;border-bottom:1px solid #f0f0f0}
  .spd-burger{display:flex}
  .spd-hero-slide,.spd-hero-slide img{height:320px}
  .spd-hero-text h2{font-size:24px}
  .spd-hero-text p{font-size:15px}
  .spd-cat-grid,.spd-prod-grid,.spd-adv-grid,.spd-news-grid,.spd-list{grid-template-columns:1fr}
  .spd-foot-grid{grid-template-columns:1fr}
  .spd-list-item{flex-direction:column}
  .spd-list-item img{width:100%;height:180px}
  .spd-section{padding:40px 0}
  .spd-sec-head h3{font-size:24px}
}