* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif; color: #333; line-height: 1.6; background: #fff; overflow-x: hidden; }
a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.text-center { text-align: center; }
.bg-gray { background-color: #f8f9fa; }
.section-box { padding: 80px 0; }

.section-title { text-align: center; margin-bottom: 60px; }
.section-title h2 { font-size: 34px; font-weight: 700; margin-bottom: 15px; color: #222; position: relative; display: inline-block; }
.section-title h2::after { content: ""; display: block; width: 60px; height: 4px; background: #ff6600; margin: 15px auto 0; }
.section-title p { color: #999; font-size: 14px; letter-spacing: 3px; text-transform: uppercase; }

.site-header { width: 100%; height: 90px; background: #fff; box-shadow: 0 4px 20px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 1000; }
.header-inner { display: flex; justify-content: space-between; align-items: center; height: 100%; }

.logo a { display: flex; align-items: center; text-decoration: none; }
.logo img { height: 45px; width: auto; margin-right: 12px; }
.logo-text { display: flex; flex-direction: column; justify-content: center; }
.logo-text .cn-name { font-size: 22px; font-weight: 800; color: #222; line-height: 1.2; letter-spacing: 1px; }
.logo-text .en-name { font-size: 10px; color: #999; text-transform: uppercase; letter-spacing: 2px; margin-top: 2px; }

.nav-menu { display: flex; }
.nav-menu li { margin: 0 20px; }
.nav-menu a { font-size: 16px; font-weight: 500; color: #333; padding-bottom: 5px; position: relative; }
.nav-menu a::after { content: ''; position: absolute; width: 0; height: 2px; bottom: 0; left: 0; background-color: #ff6600; transition: width 0.3s; }
.nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }
.nav-menu a:hover, .nav-menu a.active { color: #ff6600; }

.header-phone { text-align: right; }
.header-phone span { font-size: 12px; color: #888; display: block; }
.header-phone strong { font-size: 22px; color: #ff6600; font-family: Impact, Arial, sans-serif; letter-spacing: 1px; }

.banner-area { width: 100%; height: 600px; background: #e0e0e0; position: relative; }
.my-banner, .swiper-slide { width: 100%; height: 100%; }
.swiper-slide img { width: 100%; height: 100%; object-fit: cover; }

.adv-box { padding: 40px 0; background: #fff; border-bottom: 1px solid #eee; }
.adv-item { padding: 30px 20px; background: #fff; border: 1px solid #f0f0f0; transition: 0.3s; border-radius: 4px; }
.adv-item:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.08); border-color: #ff6600; }
.adv-item h3 { font-size: 20px; margin-bottom: 10px; color: #333; font-weight: bold; }
.adv-item p { font-size: 14px; color: #666; }
.adv-item::before { content: ''; display: block; width: 40px; height: 3px; background: #ff6600; margin: 0 auto 15px; }

.prod-card { background: #fff; border-radius: 8px; overflow: hidden; box-shadow: 0 5px 15px rgba(0,0,0,0.05); transition: 0.3s; margin-bottom: 30px; border: 1px solid #f0f0f0; }
.prod-card:hover { transform: translateY(-8px); box-shadow: 0 15px 30px rgba(0,0,0,0.1); border-color: #ff6600; }
.prod-card .img-box { width: 100%; height: 240px; overflow: hidden; position: relative; }
.prod-card .img-box img { width: 100%; height: 100%; object-fit: cover; transition: 0.6s; }
.prod-card:hover .img-box img { transform: scale(1.1); }
.prod-card h4 { padding: 18px 15px 5px; font-size: 18px; font-weight: bold; text-align: center; color: #333; }
.prod-card p { padding: 0 15px 20px; font-size: 13px; color: #888; text-align: center; }

.about-img { position: relative; border-radius: 8px; overflow: hidden; }
.about-img img { width: 100%; display: block; }
.about-text { padding-left: 60px; }
.about-text h3 { font-size: 30px; font-weight: 700; margin-bottom: 25px; color: #333; }
.about-text p { margin-bottom: 20px; text-align: justify; color: #555; line-height: 1.8; font-size: 15px; }
.btn-primary { display: inline-block; background: linear-gradient(90deg, #ff6600, #ff8533); color: #fff; padding: 12px 40px; border-radius: 30px; margin-top: 15px; font-weight: bold; box-shadow: 0 5px 15px rgba(255, 102, 0, 0.3); }
.btn-primary:hover { background: linear-gradient(90deg, #e55c00, #ff6600); transform: translateY(-2px); }

#case { background: url('../images/case_bj.jpg') no-repeat center center; background-size: cover; background-attachment: fixed; color: #fff; }
#case .section-title h2 { color: #fff; }
#case .section-title p { color: rgba(255, 255, 255, 0.6); }
.case-swiper { padding-bottom: 50px; }
.case-item { position: relative; border-radius: 8px; overflow: hidden; height: 280px; border: 1px solid rgba(255,255,255,0.1); }
.case-item img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s; }
.case-item:hover img { transform: scale(1.05); }
.case-item .case-info { position: absolute; bottom: 0; left: 0; width: 100%; background: linear-gradient(to top, rgba(0,0,0,0.9), transparent); color: #fff; padding: 20px; }
.case-item .case-info h5 { font-size: 18px; font-weight: bold; margin-bottom: 5px; }
#case .swiper-pagination-bullet { background: #fff; opacity: 0.4; }
#case .swiper-pagination-bullet-active { background: #ff6600; opacity: 1; }

.process-box { position: relative; }
.process-item { text-align: center; position: relative; padding: 20px; transition: 0.3s; }
.process-item:hover { transform: translateY(-5px); }
.process-icon { width: 80px; height: 80px; line-height: 80px; background: #fff; border: 2px solid #eee; border-radius: 50%; margin: 0 auto 20px; color: #ff6600; font-size: 36px; transition: 0.3s; }
.process-item:hover .process-icon { background: #ff6600; color: #fff; border-color: #ff6600; box-shadow: 0 10px 20px rgba(255, 102, 0, 0.3); }
.process-item h4 { font-size: 18px; font-weight: bold; margin-bottom: 10px; color: #333; }
.process-item p { font-size: 13px; color: #777; }
.arrow-right { position: absolute; top: 40px; right: -25px; font-size: 24px; color: #ddd; z-index: 1; }
.layui-col-md2:last-child .arrow-right { display: none; }

.wow { visibility: hidden; }
@keyframes fadeInUp { from { opacity: 0; transform: translate3d(0, 40px, 0); } to { opacity: 1; transform: translate3d(0, 0, 0); } }
.fadeInUp { animation-name: fadeInUp; animation-duration: 0.8s; animation-fill-mode: both; }

.site-footer { background: #2b2e37; color: #aab0c4; padding-top: 70px; font-size: 14px; }
.footer-row { padding-bottom: 50px; border-bottom: 1px solid #3d404a; }
.footer-about { padding-right: 80px; }
.footer-title { color: #fff; font-size: 18px; margin-bottom: 25px; font-weight: bold; position: relative; padding-left: 15px; }
.footer-title::before { content: ''; position: absolute; left: 0; top: 4px; width: 4px; height: 18px; background: #ff6600; }
.footer-links li { margin-bottom: 12px; }
.footer-links a { transition: 0.3s; display: block; }
.footer-links a:hover { color: #ff6600; transform: translateX(5px); }
.footer-contact li { margin-bottom: 15px; display: flex; align-items: flex-start; }
.footer-contact i { margin-right: 10px; font-size: 18px; color: #ff6600; margin-top: 2px; }
.footer-copyright { padding: 20px 0; text-align: center; color: #666; font-size: 13px; background: #252830; }
.footer-copyright a { color: #888; margin: 0 10px; }
.footer-copyright a:hover { color: #fff; }

@media (max-width: 768px) {
.banner-area { height: 200px; }
.header-inner { flex-direction: column; height: auto; padding: 15px 0; }
.logo img { height: 35px; margin-right: 8px; }
.logo-text .cn-name { font-size: 16px; }
.logo-text .en-name { font-size: 8px; }
.nav-menu { display: none; }
.header-phone { display: none; }
.arrow-right { display: none; }
.footer-row .layui-col-md3 { margin-bottom: 30px; }
.about-text { padding-left: 0; margin-top: 30px; }
.footer-about { padding-right: 0; margin-bottom: 40px; }
}