* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: #ffffff;
  font-family: "Source Han Sans SC", "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
  color: #333333;
}
a { text-decoration: none; }
.en-icon { width: 1em; height: 1em; stroke: #d9221a; fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }

/* 顶部导航（与中文版排版一致：不固定、无下划线） */
.en-nav {
  width: 100%;
  background: transparent;
}
.en-nav-inner {
  width: 1440px;
  margin: 0 auto;
  height: 137px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 0 100px;
}
.en-logo { display: inline-flex; flex: 0 0 auto; }
.en-logo img { width: 278px; height: 78px; }
.en-menu { display: inline-flex; align-items: center; gap: 40px; flex: 0 0 auto; }
.en-menu a {
  font-size: 14px;
  color: #000000;
  letter-spacing: 2px;
  height: 36px;
  display: inline-flex;
  align-items: center;
}
.en-menu a.lang-btn {
  border: 1px solid #d9221a;
  color: #d9221a;
  border-radius: 99px;
  padding: 0 18px;
}

/* banner */
.en-banner {
  width: 1440px;
  height: 659px;
  margin: 37px auto 0;
  background: url("../img/image-homepage-banner-en.png") center / cover no-repeat;
}

/* 通用区块 */
.en-section { width: 1440px; margin: 0 auto; padding: 60px 0 0; }
.en-section h2 {
  text-align: center;
  font-size: 32px;
  color: #16243d;
  font-weight: 700;
}
.en-section h2::after {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  background: #d9221a;
  margin: 14px auto 0;
}
.en-card {
  background: #ffffff;
  border: 1px solid #eeeeee;
  border-radius: 14px;
  margin-top: 36px;
}

/* About */
.about-card { padding: 50px 90px; }
.about-card p {
  text-align: center;
  font-size: 16px;
  line-height: 30px;
  color: #333333;
  margin-left: auto;
  margin-right: auto;
}
.about-card p + p { margin-top: 28px; }

/* Solutions */
.solutions-card { display: flex; padding: 40px 0; }
.sol-left { width: 40%; padding: 10px 40px; }
.sol-item { display: flex; gap: 20px; }
.sol-item + .sol-item { margin-top: 44px; }
.icon-circle {
  flex: 0 0 62px;
  width: 62px;
  height: 62px;
  border: 1px solid #f3c1bd;
  border-radius: 50%;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
}
.icon-circle .en-icon { width: 30px; height: 30px; }
.sol-item h3 { font-size: 18px; color: #16243d; margin-bottom: 10px; }
.sol-item p { font-size: 13px; line-height: 22px; color: #666666; }
.sol-item p + p { margin-top: 10px; }

.sol-right { width: 60%; border-left: 1px solid #eeeeee; padding: 10px 40px; }
.stats-grid { display: flex; flex-wrap: wrap; gap: 20px; }
.stat-card {
  width: calc(50% - 10px);
  background: #fdf1f0;
  border-radius: 10px;
  padding: 26px 30px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.stat-card .icon-circle { flex: 0 0 56px; width: 56px; height: 56px; background: #ffffff; }
.stat-card .num { font-size: 28px; color: #d9221a; font-weight: 700; line-height: 32px; }
.stat-card .num small { font-size: 16px; }
.stat-card .label { font-size: 14px; color: #16243d; margin-top: 4px; }

.datasets-title {
  font-size: 18px;
  color: #16243d;
  font-weight: 400;
  margin: 34px 0 0;
  padding-bottom: 14px;
  border-bottom: 1px solid #eeeeee;
}
.datasets { display: flex; justify-content: space-between; padding-top: 24px; }
.dataset { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.dataset .icon-circle { flex: 0 0 52px; width: 52px; height: 52px; }
.dataset .icon-circle .en-icon { width: 26px; height: 26px; }
.dataset span { font-size: 12px; color: #d9221a; font-weight: 700; }

/* Customers */
.customers-card { display: flex; flex-wrap: wrap; gap: 20px; padding: 40px; }
.customer-item {
  width: calc(33.333% - 14px);
  background: #fdf1f0;
  border-radius: 10px;
  padding: 24px 26px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.customer-item .icon-circle { flex: 0 0 56px; width: 56px; height: 56px; background: #ffffff; }
.customer-item h3 { font-size: 16px; color: #d9221a; font-weight: 700; }
.customer-item p { font-size: 12px; color: #16243d; font-weight: 700; margin-top: 8px; line-height: 18px; }

/* 联系 */
.en-contact { width: 1440px; margin: 0 auto; padding: 70px 0 40px; text-align: center; }
.en-contact h2 { font-size: 26px; color: #16243d; font-weight: 700; }
.en-contact h2::after {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  background: #d9221a;
  margin: 12px auto 0;
}
.contact-row {
  margin-top: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 26px;
  font-size: 15px;
  color: #333333;
}
.contact-row .en-icon { width: 20px; height: 20px; vertical-align: -4px; margin-right: 8px; }
.contact-row .divider { width: 1px; height: 22px; background: #dddddd; }

/* 页脚 */
.en-footer {
  margin-top: 40px;
  width: 100%;
  background: #f2f3f5;
  text-align: center;
  padding: 26px 0;
  font-size: 14px;
  color: #333333;
}