*{margin:0;padding:0;box-sizing:border-box}
:root{--xj-primary:#2563eb;--xj-primary-dark:#1e40af;--xj-accent:#f59e0b;--xj-bg:#f8fafc;--xj-text:#1e293b;--xj-text-light:#64748b;--xj-border:#e2e8f0}
body{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;color:var(--xj-text);line-height:1.6;background:#fff}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.xj-container{max-width:1200px;margin:0 auto;padding:0 20px}

.xj-header{position:sticky;top:0;z-index:100;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.06)}
.xj-header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.xj-logo{display:flex;align-items:center;gap:10px}
.xj-logo img{height:44px;width:auto}
.xj-nav{display:flex;gap:32px}
.xj-nav a{font-size:15px;font-weight:500;color:var(--xj-text);transition:color .2s}
.xj-nav a:hover,.xj-nav a.xj-active{color:var(--xj-primary)}
.xj-phone{background:var(--xj-primary);color:#fff;padding:10px 20px;border-radius:8px;font-weight:600;font-size:15px;white-space:nowrap}
.xj-menu-btn{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--xj-text)}

.xj-hero{position:relative;background:linear-gradient(135deg,#1e3a8a 0%,#2563eb 100%);color:#fff;overflow:hidden}
.xj-hero::before{content:"";position:absolute;inset:0;background:url(../images/banner.png) center/cover;opacity:.25}
.xj-hero-inner{position:relative;padding:100px 0 120px;max-width:700px}
.xj-hero h1{font-size:42px;line-height:1.25;margin-bottom:20px;font-weight:700}
.xj-hero p{font-size:18px;opacity:.9;margin-bottom:32px}
.xj-hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.xj-btn{display:inline-block;padding:14px 32px;border-radius:8px;font-weight:600;font-size:16px;transition:all .2s}
.xj-btn-primary{background:var(--xj-accent);color:#1e293b}
.xj-btn-primary:hover{background:#d97706}
.xj-btn-outline{border:2px solid #fff;color:#fff}
.xj-btn-outline:hover{background:#fff;color:var(--xj-primary)}

.xj-section{padding:80px 0}
.xj-section-title{text-align:center;margin-bottom:48px}
.xj-section-title h2{font-size:32px;font-weight:700;margin-bottom:12px}
.xj-section-title p{color:var(--xj-text-light);font-size:16px}

.xj-services{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.xj-service-card{background:#fff;border:1px solid var(--xj-border);border-radius:12px;overflow:hidden;transition:all .3s}
.xj-service-card:hover{box-shadow:0 10px 30px rgba(37,99,235,.12);transform:translateY(-4px)}
.xj-service-card img{height:200px;width:100%;object-fit:cover}
.xj-service-body{padding:24px}
.xj-service-body h3{font-size:18px;margin-bottom:10px}
.xj-service-body p{color:var(--xj-text-light);font-size:14px;margin-bottom:16px}
.xj-service-link{color:var(--xj-primary);font-weight:600;font-size:14px}

.xj-advantages{background:var(--xj-bg)}
.xj-adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.xj-adv-item{text-align:center;padding:32px 20px;background:#fff;border-radius:12px}
.xj-adv-icon{width:64px;height:64px;margin:0 auto 16px;background:var(--xj-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px;font-weight:700}
.xj-adv-item h3{font-size:17px;margin-bottom:8px}
.xj-adv-item p{color:var(--xj-text-light);font-size:14px}

.xj-process{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:xj-step}
.xj-step{text-align:center;position:relative}
.xj-step-num{width:56px;height:56px;margin:0 auto 16px;background:var(--xj-primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700}
.xj-step h3{font-size:16px;margin-bottom:8px}
.xj-step p{color:var(--xj-text-light);font-size:14px}

.xj-about{background:var(--xj-bg)}
.xj-about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.xj-about-img{border-radius:12px;overflow:hidden}
.xj-about-img img{width:100%;height:400px;object-fit:cover}
.xj-about-text h2{font-size:30px;margin-bottom:20px}
.xj-about-text p{color:var(--xj-text-light);margin-bottom:16px}
.xj-about-features{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}
.xj-about-features li{padding:8px 0;font-size:14px;font-weight:500}

.xj-news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.xj-news-card{border:1px solid var(--xj-border);border-radius:12px;overflow:hidden;transition:all .3s;background:#fff}
.xj-news-card:hover{box-shadow:0 10px 30px rgba(0,0,0,.08)}
.xj-news-card img{height:180px;width:100%;object-fit:cover}
.xj-news-body{padding:20px}
.xj-news-date{font-size:13px;color:var(--xj-text-light);margin-bottom:8px}
.xj-news-body h3{font-size:16px;margin-bottom:10px;line-height:1.4}
.xj-news-body p{color:var(--xj-text-light);font-size:14px;line-height:1.5}

.xj-cta{background:linear-gradient(135deg,#1e40af,#2563eb);color:#fff;text-align:center;padding:60px 0}
.xj-cta h2{font-size:30px;margin-bottom:16px}
.xj-cta p{opacity:.9;margin-bottom:28px;font-size:16px}

.xj-footer{background:#0f172a;color:#94a3b8;padding:60px 0 0}
.xj-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
.xj-footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.xj-footer li{margin-bottom:10px;font-size:14px}
.xj-footer a:hover{color:#fff}
.xj-footer-bottom{border-top:1px solid #1e293b;padding:20px 0;text-align:center;font-size:13px}

.xj-page-banner{background:linear-gradient(135deg,#1e3a8a,#2563eb);color:#fff;padding:60px 0;text-align:center}
.xj-page-banner h1{font-size:32px;margin-bottom:8px}
.xj-breadcrumb{font-size:14px;opacity:.8}
.xj-breadcrumb a{color:#fff}

.xj-detail{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.xj-detail img{border-radius:12px;height:400px;width:100%;object-fit:cover}
.xj-detail h2{font-size:28px;margin-bottom:16px}
.xj-detail p{color:var(--xj-text-light);margin-bottom:16px}
.xj-spec{margin:24px 0}
.xj-spec li{padding:10px 0;border-bottom:1px solid var(--xj-border);display:flex;justify-content:space-between;font-size:14px}
.xj-spec li span:first-child{color:var(--xj-text-light)}

.xj-list-page{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.xj-list-item{border:1px solid var(--xj-border);border-radius:12px;overflow:hidden;display:flex;gap:0;transition:all .3s}
.xj-list-item:hover{box-shadow:0 8px 24px rgba(0,0,0,.08)}
.xj-list-item img{width:240px;height:160px;object-fit:cover;flex-shrink:0}
.xj-list-body{padding:20px}
.xj-list-body .xj-date{font-size:13px;color:var(--xj-text-light);margin-bottom:6px}
.xj-list-body h3{font-size:16px;margin-bottom:8px;line-height:1.4}
.xj-list-body p{font-size:13px;color:var(--xj-text-light);line-height:1.5}

.xj-article{max-width:800px;margin:0 auto;padding:60px 20px}
.xj-article h1{font-size:28px;line-height:1.3;margin-bottom:16px}
.xj-article-meta{color:var(--xj-text-light);font-size:14px;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--xj-border)}
.xj-article img{border-radius:12px;margin:24px 0;width:100%}
.xj-article p{margin-bottom:16px;line-height:1.8;color:#334155}
.xj-article h2{font-size:22px;margin:32px 0 16px}
.xj-article h3{font-size:18px;margin:24px 0 12px}

.xj-404{text-align:center;padding:120px 20px}
.xj-404 h1{font-size:120px;color:var(--xj-primary);line-height:1}
.xj-404 h2{font-size:24px;margin:16px 0}
.xj-404 p{color:var(--xj-text-light);margin-bottom:24px}

.xj-contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.xj-contact-info h3{font-size:20px;margin-bottom:20px}
.xj-contact-info li{padding:12px 0;border-bottom:1px solid var(--xj-border);font-size:15px}

@media(max-width:968px){
  .xj-nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:20px;box-shadow:0 10px 20px rgba(0,0,0,.1)}
  .xj-nav.xj-open{display:flex}
  .xj-menu-btn{display:block}
  .xj-services,.xj-news-grid{grid-template-columns:1fr 1fr}
  .xj-adv-grid,.xj-process{grid-template-columns:1fr 1fr}
  .xj-about-grid,.xj-detail,.xj-contact-grid{grid-template-columns:1fr}
  .xj-hero-inner{padding:60px 0 80px}
  .xj-hero h1{font-size:28px}
  .xj-footer-grid{grid-template-columns:1fr 1fr}
  .xj-list-item{flex-direction:column}
  .xj-list-item img{width:100%;height:180px}
}
@media(max-width:600px){
  .xj-services,.xj-news-grid,.xj-adv-grid,.xj-process,.xj-list-page{grid-template-columns:1fr}
  .xj-footer-grid{grid-template-columns:1fr}
  .xj-hero h1{font-size:24px}
  .xj-phone{padding:8px 14px;font-size:13px}
}