@charset "UTF-8";

/* ===== Banner轮播 ===== */
.banner { position: relative; height: 500px; overflow: hidden; margin-top: 70px; }
.banner-slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; transition: opacity 1s; }
.banner-slide.active { opacity: 1; }
.banner-slide img { width: 100%; height: 100%; object-fit: cover; }
.banner-content { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); text-align: center; z-index: 2; max-width: 800px; padding: 0 20px; }
.banner-content h2 { font-size: 36px; color: #fff; margin-bottom: 15px; text-shadow: 0 2px 10px rgba(0,0,0,0.5); font-weight: 700; }
.banner-content p { font-size: 16px; color: rgba(255,255,255,0.95); text-shadow: 0 1px 5px rgba(0,0,0,0.5); }
.banner-overlay { position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: rgba(16,27,46,0.4); z-index: 1; }
.banner-dots { position: absolute; bottom: 25px; left: 50%; transform: translateX(-50%); z-index: 3; display: -webkit-box; display: -webkit-flex; display: flex; }
.banner-dots span { width: 12px; height: 12px; border-radius: 50%; background: rgba(255,255,255,0.5); margin: 0 6px; cursor: pointer; transition: all 0.3s; }
.banner-dots span.active { background: #C9A96E; width: 30px; border-radius: 6px; }

/* ===== 核心业务简介 ===== */
.core-intro { background: #F0F2F5; padding: 60px 0; }
.core-cards { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-flex-wrap: wrap; flex-wrap: wrap; margin: 0 -15px; }
.core-card { width: 25%; padding: 25px; text-align: center; transition: all 0.3s; }
.core-card:hover { transform: translateY(-5px); }
.core-icon { width: 60px; height: 60px; margin: 0 auto 15px; background: rgba(26,43,74,0.1); border-radius: 50%; display: -webkit-box; display: -webkit-flex; display: flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; -webkit-box-pack: center; -webkit-justify-content: center; justify-content: center; font-size: 26px; color: #1A2B4A; }
.core-card h3 { font-size: 18px; color: #1A2B4A; margin-bottom: 10px; }
.core-card p { font-size: 14px; color: #666; line-height: 1.7; }

/* ===== 服务体系展示 ===== */
.services { background: #fff; padding: 60px 0; }
.service-grid { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-flex-wrap: wrap; flex-wrap: wrap; margin: 0 -15px; }
.service-item { width: 25%; padding: 30px 20px; text-align: center; border: 1px solid #eee; margin: 0 15px 30px; border-radius: 8px; transition: all 0.3s; background: #fff; }
.service-item:hover { border-color: #C9A96E; box-shadow: 0 8px 25px rgba(0,0,0,0.08); transform: translateY(-3px); }
.service-icon { width: 70px; height: 70px; margin: 0 auto 20px; background: rgba(201,169,110,0.15); border-radius: 50%; display: -webkit-box; display: -webkit-flex; display: flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; -webkit-box-pack: center; -webkit-justify-content: center; justify-content: center; font-size: 28px; color: #C9A96E; }
.service-item h3 { font-size: 18px; color: #1A2B4A; margin-bottom: 12px; }
.service-item p { font-size: 14px; color: #666; line-height: 1.7; }
.service-item .link { display: inline-block; margin-top: 15px; color: #C9A96E; font-size: 14px; font-weight: 500; }

/* ===== 数据展示 ===== */
.data-section { background: #1A2B4A; padding: 60px 0; color: #fff; }
.data-section .section-title { color: #fff; }
.data-section .section-title::after { background: #C9A96E; }
.data-grid { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-flex-wrap: wrap; flex-wrap: wrap; -webkit-justify-content: space-around; justify-content: space-around; text-align: center; }
.data-item { padding: 20px; }
.data-number { font-size: 42px; font-weight: 700; color: #C9A96E; display: block; }
.data-label { font-size: 15px; color: rgba(255,255,255,0.8); margin-top: 8px; }

/* ===== 技术文库精选 ===== */
.wiki-section { background: #F0F2F5; padding: 60px 0; }
.wiki-list { max-width: 900px; margin: 0 auto; }
.wiki-item { background: #fff; padding: 25px 30px; margin-bottom: 15px; border-radius: 6px; border-left: 3px solid #C9A96E; transition: all 0.3s; }
.wiki-item:hover { box-shadow: 0 4px 15px rgba(0,0,0,0.08); }
.wiki-item h3 { font-size: 17px; color: #1A2B4A; margin-bottom: 8px; }
.wiki-item h3 a:hover { color: #C9A96E; }
.wiki-item p { font-size: 14px; color: #666; line-height: 1.7; }
.wiki-item .meta { font-size: 12px; color: #999; margin-top: 10px; }

/* ===== 新闻动态 ===== */
.news-section { background: #fff; padding: 60px 0; }
.news-grid { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-flex-wrap: wrap; flex-wrap: wrap; margin: 0 -15px; }
.news-item { width: 50%; padding: 0 15px 30px; }
.news-card { background: #F0F2F5; padding: 25px; border-radius: 6px; transition: all 0.3s; }
.news-card:hover { box-shadow: 0 4px 15px rgba(0,0,0,0.08); }
.news-card .date { font-size: 13px; color: #C9A96E; margin-bottom: 8px; font-weight: 500; }
.news-card h3 { font-size: 16px; color: #1A2B4A; margin-bottom: 10px; line-height: 1.4; }
.news-card h3 a:hover { color: #C9A96E; }
.news-card p { font-size: 14px; color: #666; line-height: 1.6; }

/* ===== 合作伙伴 ===== */
.partner-section { background: #F0F2F5; padding: 50px 0; }
.partner-grid { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-flex-wrap: wrap; flex-wrap: wrap; -webkit-box-pack: center; -webkit-justify-content: center; justify-content: center; -webkit-box-align: center; -webkit-align-items: center; align-items: center; margin: 0 -10px; }
.partner-item { width: 12.5%; padding: 10px; text-align: center; }
.partner-item span { display: block; padding: 15px 10px; background: #fff; border-radius: 6px; font-size: 14px; color: #1A2B4A; font-weight: 500; border: 1px solid #e0e0e0; transition: all 0.3s; }
.partner-item span:hover { border-color: #C9A96E; color: #C9A96E; }

/* ===== 联系快捷区 ===== */
.contact-shortcut { background: #1A2B4A; padding: 50px 0; color: #fff; }
.contact-shortcut .section-title { color: #fff; }
.contact-shortcut .section-title::after { background: #C9A96E; }
.contact-info-grid { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-flex-wrap: wrap; flex-wrap: wrap; -webkit-justify-content: space-around; justify-content: space-around; text-align: center; }
.contact-info-item { padding: 15px; }
.contact-info-item .icon { font-size: 28px; color: #C9A96E; margin-bottom: 10px; }
.contact-info-item h4 { font-size: 15px; color: rgba(255,255,255,0.7); margin-bottom: 5px; font-weight: 400; }
.contact-info-item p { font-size: 16px; color: #fff; font-weight: 500; }
.contact-info-item a { color: #fff; }
.contact-info-item a:hover { color: #C9A96E; }

/* ===== Footer ===== */
.footer { background: #101B2E; padding: 50px 0 20px; color: rgba(255,255,255,0.7); }
.footer-grid { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-flex-wrap: wrap; flex-wrap: wrap; margin: 0 -20px; }
.footer-col { width: 33.333%; padding: 0 20px; margin-bottom: 30px; }
.footer-col h4 { color: #fff; font-size: 17px; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: rgba(255,255,255,0.7); font-size: 14px; }
.footer-col ul a:hover { color: #C9A96E; }
.footer-col p { font-size: 14px; line-height: 1.8; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; text-align: center; font-size: 13px; }
.footer-bottom a { color: rgba(255,255,255,0.7); }
.footer-bottom a:hover { color: #C9A96E; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .service-item, .core-card { width: 50%; }
  .partner-item { width: 25%; }
}

@media (max-width: 768px) {
  .banner { height: 350px; margin-top: 60px; }
  .banner-content h2 { font-size: 24px; }
  .banner-content p { font-size: 14px; }
  .service-item, .core-card { width: 100%; margin-bottom: 15px; }
  .news-item { width: 100%; }
  .partner-item { width: 33.333%; }
  .data-number { font-size: 32px; }
  .footer-col { width: 100%; }
  .contact-info-grid { -webkit-box-orient: vertical; -webkit-box-direction: normal; -webkit-flex-direction: column; flex-direction: column; }
}

@media (max-width: 480px) {
  .banner { height: 280px; }
  .banner-content h2 { font-size: 20px; }
  .partner-item { width: 50%; }
}