:root { --primary: #2c3e50; --accent: #f39c12; --light-bg: #f8f9fa; }
.top-bar {
   background: linear-gradient(90deg, #1a252f, #2c3e50);
   color: #fff;
   padding: 10px 0;
   font-size: 14px;
}
.top-bar a { color: #f1c40f; text-decoration: none; }
.top-bar a:hover { color: #fff; }
.main-header {
   background: #fff;
   padding: 12px 0;
   box-shadow: 0 3px 15px rgba(0,0,0,0.1);
}
.logo-text {
   font-size: 17px;
   color: var(--primary);
   font-weight: bold;
}
.logo-text:hover { color: var(--accent); text-decoration: none; }
.nav-link { color: var(--primary); font-weight: 500; padding: 8px 12px; }
.nav-link.active { background: var(--accent) !important; color: #fff !important; border-radius: 20px; }
.hero-carousel { position: relative; }
.carousel-item {
   height: 500px;
   background-size: cover;
   background-position: center;
   position: relative;
}
.carousel-item::before {
   content: '';
   position: absolute;
   top: 0; left: 0; right: 0; bottom: 0;
   background: rgba(0,0,0,0.5);
}
.carousel-item.active { background-image: url('../images/g1.jpg'); }
.carousel-item.item2 { background-image: url('../images/g2.jpg'); }
.carousel-item.item3 { background-image: url('../images/g3.jpg'); }
.carousel-item.item4 { background-image: url('../images/g4.jpg'); }
.carousel-caption {
   position: absolute;
   top: 50%;
   left: 50%;
   transform: translate(-50%, -50%);
   text-align: center;
   z-index: 2;
}
.carousel-caption h3 {
   font-size: 42px;
   margin-bottom: 15px;
   text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}
.carousel-caption h3 span { color: var(--accent); }
.carousel-caption p { font-size: 18px; max-width: 700px; margin: 0 auto; }
.section-title {
   text-align: center;
   margin-bottom: 50px;
}
.section-title h2 {
   font-size: 36px;
   color: var(--primary);
   margin-bottom: 10px;
}
.section-title p {
   color: #666;
   font-size: 16px;
}
.about-section { padding: 80px 0; background: #fff; }
.about-card {
   background: var(--light-bg);
   border-radius: 10px;
   padding: 35px;
   border-left: 5px solid var(--accent);
}
.business-section { padding: 70px 0; background: var(--light-bg); }
.business-card {
   background: #fff;
   border-radius: 10px;
   padding: 30px;
   margin-bottom: 25px;
   box-shadow: 0 5px 20px rgba(0,0,0,0.08);
   transition: all 0.3s;
   border-top: 4px solid var(--accent);
}
.business-card:hover {
   transform: translateY(-8px);
   box-shadow: 0 15px 40px rgba(0,0,0,0.12);
}
.business-card .icon {
   width: 70px;
   height: 70px;
   background: linear-gradient(135deg, var(--primary), var(--accent));
   border-radius: 50%;
   display: flex;
   align-items: center;
   justify-content: center;
   margin: 0 auto 15px;
}
.business-card .icon i { font-size: 30px; color: #fff; }
.business-card h4 { color: var(--primary); font-size: 22px; margin-bottom: 12px; }
.business-card .tag {
   display: inline-block;
   background: var(--accent);
   color: #fff;
   padding: 3px 10px;
   border-radius: 15px;
   font-size: 12px;
   margin-bottom: 10px;
}
.advantage-section { padding: 70px 0; background: #fff; }
.advantage-item {
   text-align: center;
   padding: 25px 20px;
}
.advantage-item i {
   font-size: 48px;
   color: var(--accent);
   margin-bottom: 15px;
}
.advantage-item h5 { color: var(--primary); margin-bottom: 10px; }
.stats-section {
   background: linear-gradient(135deg, var(--primary), #34495e);
   padding: 60px 0;
   color: #fff;
}
.stat-item { text-align: center; }
.stat-item h3 { font-size: 48px; color: var(--accent); margin-bottom: 8px; }
.dalian-section { padding: 70px 0; background: var(--light-bg); }
.dalian-card {
   background: #fff;
   border-radius: 10px;
   padding: 35px;
   box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}
.cta-section {
   background: linear-gradient(135deg, var(--accent), #e67e22);
   padding: 65px 0;
   text-align: center;
   color: #fff;
}
.cta-section h3 { font-size: 34px; margin-bottom: 15px; }
.cta-section .tel {
   font-size: 38px;
   color: #fff;
   display: block;
   margin: 15px 0;
   text-decoration: none;
   font-weight: bold;
}
.cta-section .btn-cta {
   display: inline-block;
   background: #fff;
   color: var(--accent);
   padding: 12px 32px;
   border-radius: 30px;
   text-decoration: none;
   font-weight: bold;
   margin-top: 10px;
}
.footer {
   background: #1a252f;
   color: #fff;
   padding: 45px 0 20px;
}
.footer a { color: var(--accent); }
.footer-bottom {
   text-align: center;
   padding-top: 22px;
   border-top: 1px solid rgba(255,255,255,0.1);
   margin-top: 28px;
}
@media(max-width:768px){
   .nav-link { color: #000 !important; }
   .nav-link.active { color: #fff !important; }
   .dropdown-item { color: #000 !important; }
   .logo-text { color: #000 !important; }
}