/* ========== 基础重置 ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: #333;
  line-height: 1.7;
  background: #fff;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ========== 顶部导航 ========== */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  background: rgba(255,255,255,0.97);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  z-index: 1000;
  transition: all .3s;
}
.nav-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
/*.logo {
  font-size: 20px;
  font-weight: 700;
  color: #0056b3;
  letter-spacing: 1px;
  white-space: nowrap;
}
.logo span { color: #f39c12; } */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-img {
  height: 40px;
  width: auto;
  display: block;
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: #0056b3;
  letter-spacing: 1px;
  white-space: nowrap;
}
.logo-text em {
  font-style: normal;
  color: #f39c12;
}
nav ul {
  display: flex;
  gap: 32px;
}
nav ul li a {
  font-size: 15px;
  color: #444;
  transition: color .2s;
  position: relative;
  padding-bottom: 4px;
}
nav ul li a:hover,
nav ul li a.active { color: #0056b3; }
nav ul li a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 3px;
  background: #f39c12;
  border-radius: 2px;
}
.nav-tel {
  font-size: 15px;
  font-weight: 700;
  color: #0056b3;
  white-space: nowrap;
}

/* 汉堡菜单按钮 */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.hamburger span {
  display: block;
  height: 3px;
  width: 100%;
  background: #0056b3;
  border-radius: 2px;
  transition: all .3s;
}
.hamburger.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ========== 轮播图 ========== */
.slider {
  margin-top: 72px;
  position: relative;
  height: 520px;
  overflow: hidden;
  background: #0a2540;
}
.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .8s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  padding: 0 24px;
}
.slide.active { opacity: 1; z-index: 1; }
/*.slide:nth-child(1) { background: linear-gradient(135deg, #0a2540 0%, #0056b3 60%, #1e7fd6 100%); }*/
/*.slide:nth-child(2) { background: linear-gradient(135deg, #0056b3 0%, #1e7fd6 50%, #4aa3e8 100%); }*/
/*.slide:nth-child(3) { background: linear-gradient(135deg, #0a2540 0%, #123a63 50%, #0056b3 100%); }*/
.slide-content { max-width: 820px; position: relative; z-index: 2; }
.slide h1 {
  font-size: 42px;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 20px;
}
.slide p {
  font-size: 18px;
  margin-bottom: 36px;
  opacity: .92;
}
.btn {
  display: inline-block;
  background: #f39c12;
  color: #fff;
  padding: 14px 40px;
  border-radius: 40px;
  font-size: 16px;
  font-weight: 700;
  transition: all .25s;
}
.btn:hover { background: #e08e0b; transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  border: 2px solid #fff;
}
.btn-outline:hover { background: #fff; color: #0056b3; }

/* 轮播控制 */
.slider-dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 5;
}
.slider-dots span {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: all .3s;
}
.slider-dots span.active {
  background: #f39c12;
  width: 32px;
  border-radius: 6px;
}
.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: none;
  font-size: 22px;
  cursor: pointer;
  z-index: 5;
  transition: background .3s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.slider-arrow:hover { background: rgba(255,255,255,0.3); }
.slider-arrow.prev { left: 24px; }
.slider-arrow.next { right: 24px; }
.slide::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(10,37,64,0.55);
  z-index: 1;
}
.slide-content {
  position: relative;
  z-index: 2;
}
/* ========== 通用区块 ========== */
section.block { padding: 80px 24px; }
.container { max-width: 1200px; margin: 0 auto; }
.section-title {
  text-align: center;
  margin-bottom: 56px;
}
.section-title h2 {
  font-size: 32px;
  color: #0a2540;
  margin-bottom: 12px;
}
.section-title p { color: #777; font-size: 16px; }
.section-title .line {
  width: 60px; height: 4px;
  background: #f39c12;
  margin: 16px auto 0;
  border-radius: 2px;
}

/* 页面顶部 banner（内页） */
.page-banner {
  margin-top: 72px;
  background: linear-gradient(135deg, #0a2540 0%, #0056b3 100%); 
  color: #fff;
  padding: 90px 24px 70px;
  text-align: center;
}
.page-banner h1 {
  font-size: 36px;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.page-banner p { opacity: .85; font-size: 16px; }

/* ========== 服务卡片 ========== */
.services { background: #f7fafd; }
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}
.service-card {
  background: #fff;
  border-radius: 12px;
  padding: 36px 28px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
  transition: all .3s;
  border-top: 4px solid #0056b3;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0,86,179,0.15);
}
.service-card .icon {
  width: 56px; height: 56px;
  border-radius: 12px;
  background: linear-gradient(135deg, #0056b3, #1e7fd6);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
}
.service-card h3 {
  font-size: 19px;
  color: #0a2540;
  margin-bottom: 14px;
}
.service-card p { color: #666; font-size: 15px; }

/* ========== 解决方案 ========== */
.solution-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.solution-item {
  border: 1px solid #e6eef7;
  border-radius: 10px;
  padding: 30px 24px;
  transition: all .3s;
  background: #fbfdff;
}
.solution-item:hover {
  border-color: #0056b3;
  background: #fff;
  box-shadow: 0 8px 24px rgba(0,86,179,0.1);
}
.solution-item h4 {
  font-size: 17px;
  color: #0056b3;
  margin-bottom: 12px;
}
.solution-item p { font-size: 14.5px; color: #666; }

/* ========== 案例 ========== */
.cases-dark { background: #0a2540; color: #fff; }
.cases-dark .section-title h2 { color: #fff; }
.cases-dark .section-title p { color: #b8c7d9; }
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}
.case-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  padding: 32px 28px;
  transition: all .3s;
}
.case-card:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-4px);
}
.case-card h4 {
  font-size: 18px;
  color: #f39c12;
  margin-bottom: 14px;
}
.case-card p { font-size: 14.5px; color: #c8d6e5; }

/* ========== 关于我们 ========== */
.about-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.about-text h2 {
  font-size: 30px;
  color: #0a2540;
  margin-bottom: 20px;
}
.about-text p {
  color: #555;
  margin-bottom: 16px;
  font-size: 15.5px;
}
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.about-stats .stat-box .num {
  font-size: 36px;
  line-height: 1;
  margin-bottom: 12px;
}
.about-stats .stat-box .label {
  font-size: 15px;
  color: #0a2540;
  font-weight: 700;
  margin-top: 0;
}
.stat-box {
  background: #fff;
  border-radius: 12px;
  padding: 28px 20px;
  text-align: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.05);
}
.stat-box .num {
  font-size: 32px;
  font-weight: 700;
  color: #0056b3;
}
.stat-box .label {
  font-size: 14px;
  color: #777;
  margin-top: 6px;
}

/* ========== 联系我们 ========== */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.contact-info h3 {
  font-size: 22px;
  color: #0a2540;
  margin-bottom: 24px;
}
.contact-info ul li {
  margin-bottom: 18px;
  font-size: 15.5px;
  color: #555;
  display: flex;
  gap: 12px;
}
.contact-info ul li strong {
  color: #0a2540;
  min-width: 72px;
  flex-shrink: 0;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #dce6f0;
  border-radius: 8px;
  font-size: 15px;
  margin-bottom: 18px;
  font-family: inherit;
  transition: border-color .2s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: #0056b3;
}
.contact-form textarea { resize: vertical; min-height: 120px; }
.contact-form button {
  background: #0056b3;
  color: #fff;
  border: none;
  padding: 14px 40px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: background .2s;
}
.contact-form button:hover { background: #004494; }

.contact-form button:disabled {
  background: #b8c7d9;
  cursor: not-allowed;
  opacity: .8;
}
.contact-form button:disabled:hover {
  background: #b8c7d9;
}

/* ========== 页脚 ========== */
footer {
  background: #0a2540;
  color: #b8c7d9;
  padding: 40px 24px 24px;
  text-align: center;
  font-size: 14px;
}
footer .footer-links { margin-bottom: 16px; }
footer .footer-links a {
  margin: 0 14px;
  color: #b8c7d9;
  transition: color .2s;
}
footer .footer-links a:hover { color: #fff; }
footer .copyright {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 18px;
  color: #7f95ad;
  font-size: 13px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px;
  line-height: 2;
}
footer .copyright a {
  color: #b8c7d9;
  transition: color .2s;
}
footer .copyright a:hover { color: #fff; }
footer .copyright img {
  height: 16px;
  width: auto;
  vertical-align: middle;
  display: inline-block;
}

/* ========== 返回顶部 ========== */
#backToTop {
  position: fixed;
  right: 28px;
  bottom: 28px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: #0056b3;
  color: #fff;
  border: none;
  font-size: 20px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all .3s;
  z-index: 999;
  box-shadow: 0 6px 18px rgba(0,86,179,0.35);
}
#backToTop.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
#backToTop:hover { background: #004494; }

/* ========== 滚动动画 ========== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== 响应式 ========== */
@media (max-width: 900px) {
  .about-wrap, .contact-wrap { grid-template-columns: 1fr; }
  .slide h1 { font-size: 30px; }
  .slide p { font-size: 16px; }
  .slider { height: 460px; }
}
@media (max-width: 720px) {
  .nav-wrap { height: 64px; padding: 0 16px; }
  .nav-tel { display: none; }
  .hamburger { display: flex; }

  nav {
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: #fff;
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
  }
  nav.open { max-height: 420px; }
  nav ul {
    flex-direction: column;
    gap: 0;
    padding: 8px 0;
  }
  nav ul li a {
    display: block;
    padding: 14px 24px;
    border-bottom: 1px solid #f0f4f8;
  }
  nav ul li a.active::after { display: none; }
  nav ul li a.active { background: #f7fafd; color: #0056b3; }

  .slider, .page-banner { margin-top: 64px; }
  .slider { height: 420px; }
  .slide h1 { font-size: 24px; letter-spacing: 1px; }
  .slide p { font-size: 15px; margin-bottom: 26px; }
  .slider-arrow { width: 38px; height: 38px; font-size: 18px; }
  .slider-arrow.prev { left: 10px; }
  .slider-arrow.next { right: 10px; }

  section.block { padding: 56px 18px; }
  .section-title h2 { font-size: 24px; }
  .page-banner { padding: 70px 18px 50px; }
  .page-banner h1 { font-size: 26px; }

  #backToTop { right: 16px; bottom: 16px; width: 42px; height: 42px; }
}

/* ========== 图文结合案例卡片 ========== */
.case-grid-img {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}
.case-img-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  transition: all .3s;
  display: flex;
  flex-direction: column;
}
.case-img-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 36px rgba(0,86,179,0.15);
}
.case-img-card .thumb {
  height: 200px;
  overflow: hidden;
  background: linear-gradient(135deg, #0056b3, #1e7fd6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 40px;
}
.case-img-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s;
}
.case-img-card:hover .thumb img { transform: scale(1.06); }
.case-img-card .body {
  padding: 24px 22px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.case-img-card .tag {
  display: inline-block;
  font-size: 12px;
  color: #0056b3;
  background: #eaf3fc;
  padding: 3px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
  align-self: flex-start;
}
.case-img-card h4 {
  font-size: 18px;
  color: #0a2540;
  margin-bottom: 10px;
}
.case-img-card p {
  font-size: 14.5px;
  color: #666;
  flex: 1;
}
.case-img-card .more {
  margin-top: 16px;
  font-size: 14px;
  color: #0056b3;
  font-weight: 700;
}
.case-img-card .more::after {
  content: " →";
  transition: margin-left .2s;
}
.case-img-card:hover .more::after { margin-left: 4px; }

/* ========== 新闻列表 ========== */
.news-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}
.news-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  transition: all .3s;
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 36px rgba(0,86,179,0.15);
}
.news-card .thumb {
  height: 180px;
  background: linear-gradient(135deg, #0a2540, #0056b3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 38px;
  overflow: hidden;
}
.news-card .thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s;
}
.news-card:hover .thumb img { transform: scale(1.06); }
.news-card .body {
  padding: 22px 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.news-card .date {
  font-size: 13px;
  color: #999;
  margin-bottom: 10px;
}
.news-card h4 {
  font-size: 17px;
  color: #0a2540;
  margin-bottom: 10px;
  line-height: 1.5;
}
.news-card p {
  font-size: 14px;
  color: #666;
  flex: 1;
}
.news-card .more {
  margin-top: 14px;
  font-size: 14px;
  color: #0056b3;
  font-weight: 700;
}

/* ========== 招聘列表 ========== */
.job-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.job-item {
  background: #fff;
  border: 1px solid #e6eef7;
  border-radius: 12px;
  padding: 26px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  transition: all .3s;
}
.job-item:hover {
  border-color: #0056b3;
  box-shadow: 0 8px 24px rgba(0,86,179,0.1);
  transform: translateX(4px);
}
.job-item .job-info h4 {
  font-size: 18px;
  color: #0a2540;
  margin-bottom: 8px;
}
.job-item .job-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
  color: #777;
}
.job-item .job-meta span::before {
  content: "•";
  color: #f39c12;
  margin-right: 6px;
}
.job-item .apply-btn {
  background: #0056b3;
  color: #fff;
  padding: 10px 26px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  transition: background .2s;
}
.job-item .apply-btn:hover { background: #004494; }
.job-item .apply-btn:disabled {
  background: #b8c7d9;
  color: #f0f4f8;
  cursor: not-allowed;
  opacity: .8;
}

/* ========== 福利标签 ========== */
.perks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}
.perk-item {
  background: #fff;
  border-radius: 12px;
  padding: 26px 20px;
  text-align: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.05);
  transition: all .3s;
}
.perk-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 26px rgba(0,86,179,0.12);
}
.perk-item .perk-icon {
  font-size: 32px;
  margin-bottom: 12px;
}
.perk-item h4 {
  font-size: 16px;
  color: #0a2540;
  margin-bottom: 8px;
}
.perk-item p { font-size: 13.5px; color: #777; }

/* ========== 响应式补充 ========== */
@media (max-width: 720px) {
  .job-item {
    flex-direction: column;
    align-items: flex-start;
  }
  .job-item .apply-btn { align-self: stretch; text-align: center; }
}

/* ========== 新闻详情页 ========== */
.article-wrap {
  max-width: 820px;
  margin: 0 auto;
}
.article-header {
  text-align: center;
  margin-bottom: 32px;
}
.article-meta {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
  font-size: 14px;
}
.article-date { color: #999; }
.article-tag {
  color: #0056b3;
  background: #eaf3fc;
  padding: 2px 12px;
  border-radius: 20px;
  font-size: 13px;
}
.article-title {
  font-size: 30px;
  color: #0a2540;
  line-height: 1.5;
}
.article-cover {
  height: 320px;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 36px;
  background: linear-gradient(135deg, #0a2540, #0056b3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 60px;
}
.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.article-content {
  font-size: 16px;
  color: #444;
  line-height: 1.9;
}
.article-content p { margin-bottom: 20px; }
.article-content h2 {
  font-size: 22px;
  color: #0a2540;
  margin: 36px 0 16px;
  padding-left: 14px;
  border-left: 4px solid #f39c12;
}
.article-content blockquote {
  background: #f7fafd;
  border-left: 4px solid #0056b3;
  padding: 18px 24px;
  margin: 24px 0;
  border-radius: 0 8px 8px 0;
  color: #555;
  font-style: italic;
}
.article-footer {
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid #e6eef7;
}
.article-share {
  font-size: 14px;
  color: #777;
  margin-bottom: 20px;
}
.article-share a {
  color: #0056b3;
  margin-left: 8px;
}
.article-nav {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 14.5px;
}
.article-nav a {
  color: #0056b3;
  transition: color .2s;
}
.article-nav a:hover { color: #f39c12; }

@media (max-width: 720px) {
  .article-title { font-size: 22px; }
  .article-cover { height: 200px; }
  .article-content { font-size: 15px; }
  .article-nav { flex-direction: column; }
}

/* ========== 面包屑导航 ========== */
.breadcrumb {
  background: #f7fafd;
  border-bottom: 1px solid #e6eef7;
  padding: 14px 24px;
  font-size: 14px;
  color: #777;
}
.breadcrumb .container {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}
.breadcrumb a {
  color: #0056b3;
  transition: color .2s;
}
.breadcrumb a:hover { color: #f39c12; }
.breadcrumb .sep {
  color: #b8c7d9;
  margin: 0 4px;
}
.breadcrumb .current {
  color: #999;
}

/* ========== 核心产品 ========== */
.products { background: #fff; }
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.product-card {
  display: block;
  background: #fff;
  border: 1px solid #e6eef7;
  border-radius: 12px;
  padding: 32px 26px;
  transition: all .3s;
  text-align: center;
}
.product-card:hover {
  border-color: #0056b3;
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0,86,179,0.12);
}
.product-card .icon {
  width: 64px; height: 64px;
  margin: 0 auto 18px;
  border-radius: 16px;
  background: linear-gradient(135deg, #0056b3, #1e7fd6);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
}
.product-card h3 {
  font-size: 18px;
  color: #0a2540;
  margin-bottom: 10px;
}
.product-card p {
  font-size: 14.5px;
  color: #666;
}

/* ========== 服务流程 ========== */
.process { background: #f7fafd; }
.process-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
}
.process-item {
  background: #fff;
  border-radius: 12px;
  padding: 28px 20px;
  text-align: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.05);
  position: relative;
}
.process-item span {
  display: inline-block;
  font-size: 26px;
  font-weight: 700;
  color: #f39c12;
  margin-bottom: 10px;
}
.process-item h4 {
  font-size: 16px;
  color: #0a2540;
  margin-bottom: 8px;
}
.process-item p { font-size: 13.5px; color: #777; }

/* ========== 资质与证书 ========== */
.certs { background: #fff; }
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);  /* 基础：3 列 */
  gap: 24px;
}
.cert-item {
  border: 1px solid #e6eef7;
  border-radius: 10px;
  overflow: hidden;
  transition: all .3s;
  background: #fbfdff;
}
.cert-item:hover {
  border-color: #0056b3;
  box-shadow: 0 8px 24px rgba(0,86,179,0.12);
}
.cert-item img {
  width: 100%;
  height: 300px;
  object-fit: contain;
  padding: 16px;
  background: #fff;
}

/* ========== 证书板块响应式 ========== */
@media (max-width: 900px) {
  .cert-grid { grid-template-columns: repeat(2, 1fr); } /* 平板：2 列 */
}
@media (max-width: 600px) {
  .cert-grid { grid-template-columns: 1fr; }  /* 手机：1 列 */
}

/* ========== 底部 CTA ========== */
.cta {
  background: #f7fafd;
  color: #0a2540;
  text-align: center;
  padding: 70px 24px;
  border-top: 1px solid #e6eef7;
}
.cta h2 { font-size: 28px; margin-bottom: 12px; }
.cta p { color: #777; margin-bottom: 28px; font-size: 16px; }

/* ========== 产品详情（左右图文） ========== */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.product-detail.reverse .product-detail-text { order: 2; }
.product-detail.reverse .product-detail-img { order: 1; }
.product-tag {
  display: inline-block;
  font-size: 13px;
  color: #0056b3;
  background: #eaf3fc;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 14px;
}
.product-detail-text h2 {
  font-size: 28px;
  color: #0a2540;
  margin-bottom: 16px;
}
.product-desc {
  font-size: 16px;
  color: #555;
  margin-bottom: 22px;
  line-height: 1.8;
}
.product-features {
  list-style: none;
  margin-bottom: 28px;
}
.product-features li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 12px;
  font-size: 15px;
  color: #555;
}
.product-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #f39c12;
  font-weight: 700;
}
.product-detail-img {
  height: 340px;
  border-radius: 14px;
  overflow: hidden;
  background: linear-gradient(135deg, #0a2540, #0056b3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 70px;
  box-shadow: 0 10px 30px rgba(0,86,179,0.15);
}
.product-detail-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 900px) {
  .product-detail { grid-template-columns: 1fr; gap: 28px; }
  .product-detail.reverse .product-detail-text { order: 1; }
  .product-detail.reverse .product-detail-img { order: 2; }
  .product-detail-img { height: 220px; font-size: 50px; }
}

/* ========== 描边次要按钮（蓝） ========== */
.btn-outline-blue {
  background: transparent;
  color: #0056b3;
  border: 2px solid #0056b3;
  padding: 12px 38px;
}
.btn-outline-blue:hover {
  background: #0056b3;
  color: #fff;
}

/* ========== 证书分组标题 ========== */
.cert-group-title {
  font-size: 20px;
  color: #0a2540;
  margin: 48px 0 20px;
  padding-left: 14px;
  border-left: 4px solid #f39c12;
}
.cert-group-title:first-of-type {
  margin-top: 0;
}

/* ========== 证书网格：桌面 3 列 ========== */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.cert-item {
  border: 1px solid #e6eef7;
  border-radius: 10px;
  overflow: hidden;
  transition: all .3s;
  background: #fbfdff;
}
.cert-item:hover {
  border-color: #0056b3;
  box-shadow: 0 8px 24px rgba(0,86,179,0.12);
}
.cert-item img {
  width: 100%;
  height: 300px;
  object-fit: contain;
  padding: 16px;
  background: #fff;
}

/* 平板 2 列 */
@media (max-width: 900px) {
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
}
/* 手机 1 列 */
@media (max-width: 600px) {
  .cert-grid { grid-template-columns: 1fr; }
  .cert-item img { height: 240px; }
  .cert-group-title { font-size: 18px; margin: 36px 0 16px; }
}