@charset "UTF-8";

/* ===== Banner轮播区 ===== */
.banner {
  position: relative;
  width: 100%;
  height: 500px;
  overflow: hidden;
  background: var(--dark);
}

.banner-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease;
}

.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;
  color: var(--white);
  z-index: 10;
  width: 90%;
  max-width: 800px;
}

.banner-content h2 {
  font-size: 42px;
  color: var(--white);
  margin-bottom: 20px;
  text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
  animation: slideDown 0.8s ease forwards;
}

.banner-content p {
  font-size: 18px;
  margin-bottom: 30px;
  text-shadow: 1px 1px 4px rgba(0,0,0,0.5);
  animation: slideUp 0.8s ease 0.2s forwards;
  opacity: 0;
}

.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(26, 37, 47, 0.4);
  z-index: 5;
}

/* Banner指示器 */
.banner-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  gap: 10px;
  z-index: 20;
}

.banner-dots button {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--white);
  background: transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 0;
}

.banner-dots button.active {
  background: var(--secondary);
  border-color: var(--secondary);
}

/* ===== 核心业务简介区 ===== */
.core-intro {
  background: var(--light);
  padding: 70px 0;
}

.core-cards {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin: 0 -15px;
}

.core-card {
  width: 25%;
  padding: 0 15px;
  margin-bottom: 30px;
}

.core-card-inner {
  background: var(--white);
  border-radius: 8px;
  padding: 35px 25px;
  text-align: center;
  box-shadow: 0 3px 15px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
  height: 100%;
}

.core-card-inner:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 35px rgba(0,0,0,0.15);
}

.core-icon {
  width: 70px;
  height: 70px;
  background: rgba(230, 126, 34, 0.1);
  border-radius: 50%;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 30px;
  color: var(--secondary);
}

.core-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--primary);
}

.core-card p {
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.7;
}

/* ===== 服务体系展示区 ===== */
.services-showcase {
  background: var(--white);
  padding: 70px 0;
}

.service-grid {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin: 0 -15px;
}

.service-item {
  width: 25%;
  padding: 0 15px;
  margin-bottom: 30px;
}

.service-item-inner {
  background: var(--light);
  border-radius: 8px;
  padding: 40px 25px;
  text-align: center;
  transition: all 0.3s ease;
  border-top: 4px solid var(--secondary);
  height: 100%;
}

.service-item-inner:hover {
  background: var(--primary);
}

.service-item-inner:hover h3,
.service-item-inner:hover p {
  color: var(--white);
}

.service-item-inner:hover .service-icon {
  background: var(--secondary);
  color: var(--white);
}

.service-icon {
  width: 80px;
  height: 80px;
  background: var(--white);
  border-radius: 50%;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 36px;
  color: var(--secondary);
  transition: all 0.3s ease;
  box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.service-item h3 {
  font-size: 22px;
  margin-bottom: 15px;
  color: var(--primary);
  transition: color 0.3s ease;
}

.service-item p {
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.7;
  transition: color 0.3s ease;
}

/* ===== 数据展示区 ===== */
.data-section {
  background: var(--primary);
  padding: 80px 0;
  position: relative;
}

.data-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('../images/module2.jpg') center/cover;
  opacity: 0.1;
}

.data-grid {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin: 0 -15px;
  position: relative;
  z-index: 1;
}

.data-item {
  width: 25%;
  padding: 0 15px;
  text-align: center;
}

.data-number {
  font-size: 48px;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 10px;
  line-height: 1;
}

.data-label {
  font-size: 16px;
  color: rgba(255,255,255,0.8);
}

/* ===== 智库精选区 ===== */
.wiki-section {
  background: var(--light);
  padding: 70px 0;
}

.wiki-list {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin: 0 -15px;
}

.wiki-item {
  width: 50%;
  padding: 0 15px;
  margin-bottom: 20px;
}

.wiki-item-inner {
  background: var(--white);
  border-radius: 8px;
  padding: 25px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  transition: all 0.3s ease;
}

.wiki-item-inner:hover {
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.wiki-item h3 {
  font-size: 17px;
  margin-bottom: 10px;
  color: var(--primary);
}

.wiki-item h3 a {
  color: inherit;
  text-decoration: none;
}

.wiki-item h3 a:hover {
  color: var(--secondary);
  text-decoration: none;
}

.wiki-item p {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 10px;
}

.wiki-meta {
  font-size: 13px;
  color: #999;
}

/* ===== 行业动态区 ===== */
.news-section {
  background: var(--white);
  padding: 70px 0;
}

.news-list {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin: 0 -15px;
}

.news-item {
  width: 50%;
  padding: 0 15px;
  margin-bottom: 20px;
}

.news-item-inner {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  background: var(--light);
  border-radius: 8px;
  padding: 20px;
  transition: all 0.3s ease;
}

.news-item-inner:hover {
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.news-date {
  width: 60px;
  height: 60px;
  background: var(--secondary);
  border-radius: 8px;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  color: var(--white);
  margin-right: 20px;
  -webkit-flex-shrink: 0;
  -ms-flex-negative: 0;
  flex-shrink: 0;
}

.news-date .day {
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
}

.news-date .month {
  font-size: 12px;
  margin-top: 2px;
}

.news-content h3 {
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--primary);
}

.news-content h3 a {
  color: inherit;
  text-decoration: none;
}

.news-content h3 a:hover {
  color: var(--secondary);
  text-decoration: none;
}

.news-content p {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 0;
}

/* ===== 合作伙伴区 ===== */
.partner-section {
  background: var(--light);
  padding: 70px 0;
}

.partner-grid {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 30px;
}

.partner-item {
  width: 160px;
  height: 80px;
  background: var(--white);
  border-radius: 8px;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  transition: all 0.3s ease;
}

.partner-item:hover {
  box-shadow: 0 8px 25px rgba(0,0,0,0.12);
  transform: translateY(-3px);
}

/* ===== 联系我们快捷区 ===== */
.contact-section {
  background: var(--white);
  padding: 70px 0;
}

.contact-grid {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin: 0 -15px;
}

.contact-info-item {
  width: 33.333333%;
  padding: 0 15px;
  margin-bottom: 30px;
  text-align: center;
}

.contact-info-icon {
  width: 60px;
  height: 60px;
  background: rgba(230, 126, 34, 0.1);
  border-radius: 50%;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  margin: 0 auto 15px;
  font-size: 24px;
  color: var(--secondary);
}

.contact-info-item h4 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--primary);
}

.contact-info-item p {
  color: var(--text-light);
  font-size: 15px;
}

.contact-cta {
  text-align: center;
  margin-top: 30px;
}

/* ===== Footer ===== */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 30px;
}

.footer-grid {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin: 0 -15px;
}

.footer-col {
  width: 33.333333%;
  padding: 0 15px;
  margin-bottom: 30px;
}

.footer-col h4 {
  color: var(--white);
  font-size: 18px;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--secondary);
  display: inline-block;
}

.footer-col p,
.footer-col a {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  line-height: 1.8;
}

.footer-col a {
  display: block;
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--secondary);
  text-decoration: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 25px;
  margin-top: 20px;
  text-align: center;
  font-size: 14px;
  color: rgba(255,255,255,0.5);
}

.footer-bottom a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
}

.footer-bottom a:hover {
  color: var(--secondary);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .banner {
    height: 400px;
  }
  
  .banner-content h2 {
    font-size: 32px;
  }
  
  .core-card,
  .service-item {
    width: 50%;
  }
  
  .data-item {
    width: 50%;
    margin-bottom: 30px;
  }
  
  .contact-info-item {
    width: 50%;
  }
  
  .footer-col {
    width: 50%;
  }
}

@media (max-width: 768px) {
  .banner {
    height: 350px;
  }
  
  .banner-content h2 {
    font-size: 26px;
  }
  
  .banner-content p {
    font-size: 15px;
  }
  
  .core-card,
  .service-item {
    width: 100%;
  }
  
  .data-item {
    width: 50%;
  }
  
  .data-number {
    font-size: 36px;
  }
  
  .wiki-item,
  .news-item {
    width: 100%;
  }
  
  .news-item-inner {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
  }
  
  .news-date {
    margin-right: 0;
    margin-bottom: 15px;
  }
  
  .contact-info-item {
    width: 100%;
  }
  
  .footer-col {
    width: 100%;
  }
  
  .partner-item {
    width: 45%;
  }
}

@media (max-width: 480px) {
  .banner {
    height: 300px;
  }
  
  .banner-content h2 {
    font-size: 22px;
  }
  
  .data-item {
    width: 100%;
  }
  
  .partner-item {
    width: 100%;
  }
}