:root{
  --primary:#0a5cd8;
  --primary-dark:#083f99;
  --accent:#ff7a00;
  --text:#222;
  --muted:#666;
  --bg-light:#f6f9fd;
  --border:#e5e9f0;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:"Microsoft YaHei","PingFang SC",-apple-system,BlinkMacSystemFont,Arial,sans-serif;color:var(--text);line-height:1.7;background:#fff;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.container{max-width:1160px;margin:0 auto;padding:0 20px;}

/* Header */
header.site-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--border);}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;}
.logo{font-size:22px;font-weight:700;color:var(--primary);}
.logo span{color:var(--accent);}
nav.main-nav ul{display:flex;gap:28px;list-style:none;}
nav.main-nav a{font-size:15px;font-weight:500;color:var(--text);padding:6px 0;border-bottom:2px solid transparent;}
nav.main-nav a:hover,nav.main-nav a.active{color:var(--primary);border-bottom-color:var(--primary);}
.header-cta{display:flex;align-items:center;gap:10px;}
.phone-badge{font-weight:700;color:var(--primary-dark);font-size:16px;}
.btn{display:inline-block;padding:10px 22px;border-radius:6px;background:var(--primary);color:#fff;font-weight:600;font-size:14px;transition:.2s;}
.btn:hover{background:var(--primary-dark);}
.btn.btn-accent{background:var(--accent);}
.btn.btn-accent:hover{background:#e56b00;}
.btn.btn-outline{background:none;border:1px solid var(--primary);color:var(--primary);}
.nav-toggle{display:none;}

/* Hero */
.hero{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;padding:70px 0;}
.hero .container{display:flex;align-items:center;gap:40px;}
.hero-text{flex:1;}
.hero h1{font-size:34px;line-height:1.4;margin-bottom:18px;}
.hero p{font-size:16px;opacity:.92;margin-bottom:26px;max-width:560px;}
.hero-actions{display:flex;gap:14px;}
.hero-badges{display:flex;gap:18px;margin-top:30px;flex-wrap:wrap;}
.hero-badges span{background:rgba(255,255,255,.12);padding:6px 14px;border-radius:20px;font-size:13px;}
.hero-image{flex:1;text-align:center;font-size:120px;}

/* Breadcrumb */
.breadcrumb{background:var(--bg-light);padding:12px 0;font-size:13px;color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}

/* Page hero (inner pages) */
.page-hero{background:var(--bg-light);padding:46px 0;border-bottom:1px solid var(--border);}
.page-hero h1{font-size:28px;color:var(--primary-dark);margin-bottom:10px;}
.page-hero p{color:var(--muted);max-width:700px;}

/* Sections */
section{padding:60px 0;}
section.alt{background:var(--bg-light);}
.section-title{text-align:center;margin-bottom:40px;}
.section-title h2{font-size:26px;color:var(--primary-dark);margin-bottom:10px;}
.section-title p{color:var(--muted);font-size:15px;}

/* Cards grid */
.grid{display:grid;gap:24px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
.card{background:#fff;border:1px solid var(--border);border-radius:10px;padding:28px 24px;transition:.2s;}
.card:hover{box-shadow:0 8px 24px rgba(10,92,216,.1);transform:translateY(-3px);}
.card .icon{font-size:34px;margin-bottom:14px;}
.card h3{font-size:18px;margin-bottom:10px;color:var(--primary-dark);}
.card p{color:var(--muted);font-size:14px;}
.card a.more{display:inline-block;margin-top:12px;color:var(--primary);font-size:14px;font-weight:600;}

/* Service detail blocks */
.feature-row{display:flex;gap:36px;align-items:center;margin-bottom:50px;}
.feature-row:nth-child(even){flex-direction:row-reverse;}
.feature-row .feature-text{flex:1;}
.feature-row .feature-visual{flex:1;background:var(--bg-light);border-radius:12px;padding:50px;text-align:center;font-size:70px;}
.feature-text h3{font-size:22px;color:var(--primary-dark);margin-bottom:14px;}
.feature-text ul{margin:16px 0;padding-left:20px;color:var(--muted);}
.feature-text ul li{margin-bottom:6px;}

/* Process steps */
.steps{display:flex;gap:20px;flex-wrap:wrap;justify-content:space-between;}
.step{flex:1;min-width:180px;text-align:center;padding:20px;}
.step .num{width:48px;height:48px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;margin:0 auto 14px;}
.step h4{font-size:16px;margin-bottom:8px;}
.step p{font-size:13px;color:var(--muted);}

/* FAQ */
.faq-item{border-bottom:1px solid var(--border);padding:18px 0;}
.faq-item h3{font-size:16px;color:var(--primary-dark);margin-bottom:8px;}
.faq-item p{color:var(--muted);font-size:14px;}

/* Keyword tags */
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.tag-list span{background:var(--bg-light);border:1px solid var(--border);padding:6px 14px;border-radius:20px;font-size:13px;color:var(--primary-dark);}

/* CTA band */
.cta-band{background:var(--primary-dark);color:#fff;text-align:center;padding:50px 0;}
.cta-band h2{font-size:24px;margin-bottom:14px;}
.cta-band p{opacity:.9;margin-bottom:22px;}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;}
.contact-info .item{display:flex;gap:14px;margin-bottom:22px;}
.contact-info .item .ic{font-size:26px;}
.contact-info .item h4{font-size:15px;margin-bottom:4px;}
.contact-info .item p{color:var(--muted);font-size:14px;}
form.contact-form input,form.contact-form textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:6px;margin-bottom:14px;font-size:14px;font-family:inherit;}
form.contact-form textarea{min-height:120px;resize:vertical;}
form.contact-form button{width:100%;}

/* About */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;}
.stat-grid .stat h3{font-size:32px;color:var(--primary);}
.stat-grid .stat p{color:var(--muted);font-size:14px;}

/* Footer */
footer{background:#111a2e;color:#c7cfe0;padding:50px 0 20px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px;}
.footer-grid h4{color:#fff;font-size:15px;margin-bottom:14px;}
.footer-grid ul{list-style:none;}
.footer-grid ul li{margin-bottom:8px;font-size:13px;}
.footer-grid ul li a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:18px;text-align:center;font-size:12px;color:#8894ab;}

@media(max-width:860px){
  nav.main-nav{display:none;}
  .hero .container{flex-direction:column;text-align:center;}
  .hero-actions{justify-content:center;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .feature-row,.feature-row:nth-child(even){flex-direction:column;}
  .contact-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}