:root {
  --u: 0.0520833333vw; /* 1920设计稿：1px = 0.0520833vw */
  --blue: #07518f;
  --deep-blue: #003f79;
  --text: #333;
  --line: #d8dfe5;
  --page: calc(1120 * var(--u));
}
* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  background: #fff;
}
img {
  display: block;
  max-width: 100%;
}
a {
  text-decoration: none;
  color: inherit;
}
button {
  font: inherit;
}
.container {
  width: var(--page);
  max-width: calc(1120 * var(--u));
  margin: 0 auto;
}

/* ---------- Header ---------- */
.header {
  height: calc(92 * var(--u));
  min-height: 72px;
  background: #fff;
  position: relative;
  z-index: 20;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  position: relative;
  justify-content: space-between;
}
.header-main{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    gap: calc(12 * var(--u));
}
.logo {
  width: calc(370 * var(--u));
  max-width: 370px;
  min-width: 270px;
  height: auto;
}
.nav {
  margin-left: auto;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 0;
}
.nav-item {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0 calc(16 * var(--u));
  font-size: calc(18 * var(--u));
  white-space: nowrap;
  color: #000;
  cursor: pointer;
}
.nav-item:hover,
.nav-item.active {
  color: #004b87;
}
.subnav {
  position: absolute;
  top: 130%;
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  width: calc(105 * var(--u));
  min-width: 105px;
  background: #fff;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.12);
  opacity: 0;
  visibility: hidden;
  transition: 0.22s ease;
  border-top: 2px solid #07518f;
}
.nav-item:hover .subnav {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.subnav a {
  display: block;
  padding: calc(11 * var(--u)) calc(10 * var(--u));
  font-size: calc(14 * var(--u));
  color: #777;
  text-align: center;
  border-bottom: 1px solid #eee;
  background: #fff;
}
.subnav a:hover {
  background: #07518f;
  color: #fff;
}
.search {
  width: calc(190 * var(--u));
  max-width: 190px;
  min-width: 130px;
  height: calc(30 * var(--u));
  border-radius: calc(18 * var(--u));
  background: #f3f4f5;
  margin-left: calc(15 * var(--u));
  position: relative;
}
.search input {
  width: 100%;
  height: 100%;
  border: 0;
  outline: none;
  background: transparent;
  padding: 0 calc(34 * var(--u)) 0 calc(14 * var(--u));
  font-size: 13px;
}
.search:after {
  content: "⌕";
  position: absolute;
  right: 11px;
  top: 50%;
  transform: translateY(-52%);
  color: #999;
  font-size: 16px;
}

/* ---------- Banner ---------- */
.banner {
  width: 100%;
  height: calc(642 * var(--u));
  max-height: calc(642 * var(--u));
  min-height: 280px;
  overflow: hidden;
}
.banner .swiper,
.banner .swiper-wrapper,
.banner .swiper-slide {
  height: 100%;
}
.banner .swiper-slide {
  position: relative;
  background-position: center;
  background-size: cover;
  display: flex;
      align-items: center;
}

.banner .swiper-slide img{
    width: calc(1776 * var(--u));
    height: 100%;
    object-fit: cover;
    margin: 0 auto
}

.banner .slide-mask {
  position: absolute;
  inset: 0;
  /*background: linear-gradient(90deg, rgba(0, 66, 110, 0.18), transparent 55%);*/
}
.banner .swiper-pagination-bullet {
  width: 9px;
  height: 9px;
  background: #fff;
  opacity: 0.55;
}
.banner .swiper-pagination-bullet-active {
  opacity: 1;
  background: #fff;
}
.banner .swiper-button-next,
.banner .swiper-button-prev {
  color: #fff;
  opacity: 0.5;
  transition: 0.2s;
}
.banner:hover .swiper-button-next,
.banner:hover .swiper-button-prev {
  opacity: 0.9;
}
.banner:hover .swiper-button-next{
  right: var(--swiper-navigation-sides-offset, 80px);
}
.banner:hover .swiper-button-prev{
  left: var(--swiper-navigation-sides-offset, 80px);
}
.banner .swiper-button-next:after,
.banner .swiper-button-prev:after {
  font-size: 26px;
}

/* ---------- Intro ---------- */
.intro {
  padding: calc(62 * var(--u)) 0 calc(90 * var(--u));
  text-align: center;
}
.intro-logo {
  width: calc(109 * var(--u));
  /* margin: 0 auto calc(20 * var(--u)); */
}
.intro-title {
  margin: 0;
  font-size: calc(27 * var(--u));
  letter-spacing: calc(2 * var(--u));
  color: #064b88;
  font-weight: 700;
  display: flex;
  align-items: center;
  width: 100%;
    justify-content: center;
    margin-bottom: calc(20 * var(--u));
}
.intro-title:before,
.intro-title:after {
  content: "";
  display: inline-block;
  vertical-align: middle;
  width: calc(34 * var(--u));
  height: 2px;
  background: #0a5a9d;
  margin: 0 calc(20 * var(--u));
}
.intro-h1{
    font-size: calc(38 * var(--u));
    color: #00448a;
    margin: 0;
}

/* ---------- Business Cards ---------- */
.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(28 * var(--u));
  margin-bottom: calc(70 * var(--u));
}
.business-card {
  height: calc(550 * var(--u));
  border-radius: calc(11 * var(--u));
  overflow: hidden;
  position: relative;
  box-shadow: 0 5px 16px rgba(0, 0, 0, 0.08);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.business-card:hover {
  transform: translateY(calc(-8 * var(--u)));
  box-shadow: 0 14px 30px rgba(0, 45, 90, 0.18);
}
.business-card:after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 36%,
    rgba(0, 24, 65, 0.18) 50%,
    rgba(0, 31, 77, 0.95) 100%
  );
}
.business-card .photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.business-card:hover .photo {
  transform: scale(1.045);
}
.business-content {
  position: absolute;
  left: calc(25 * var(--u));
  right: calc(25 * var(--u));
  bottom: calc(40 * var(--u));
  z-index: 2;
  color: #fff;
}
.business-content h3 {
  margin: 0 0 calc(22 * var(--u));
  font-size: calc(30 * var(--u));
  font-weight: 700;
}
.business-content p {
  margin: 0;
  font-size: calc(14 * var(--u));
  line-height: 1.6;
  opacity: 1;
}

/* ---------- News area ---------- */
.news-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) calc(345 * var(--u));
  gap: calc(42 * var(--u));
  padding-bottom: calc(74 * var(--u));
}
.news-main {
  min-width: 0;
}
.tabs {
  /* height: calc(36 * var(--u)); */
  display: flex;
  align-items: flex-start;
  gap: calc(30 * var(--u));
  margin-bottom: calc(14 * var(--u));
}
.tab {
  position: relative;
  border: 0;
  background: none;
  padding: 0;
  color: #727171;
  cursor: pointer;
  font-size: calc(18 * var(--u));
  line-height: 1.5;
  font-weight: 500;
}
.tab:not(:last-child):after {
  content: "|";
  position: absolute;
  right: calc(-18 * var(--u));
  color: #727171;
  font-weight: 500;
}
.tab.active {
  color: #07518f;
  font-weight: 600;
  /* font-weight: 700; */
}
/* .tab.active:before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -9px;
  height: 2px;
  background: #07518f;
} */
.news-panel {
  display: none;
}
.news-panel.active {
  display: block;
}
.feature-news {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(26 * var(--u));
}
.feature-image {
  width: 100%;
  height: calc(245 * var(--u));
  object-fit: cover;
}
.feature-row {
  display: grid;
  grid-template-columns: calc(100 * var(--u)) 1fr;
  gap: calc(20 * var(--u));
  align-items: center;
}
.date-box {
  width: calc(100 * var(--u));
  height: calc(100 * var(--u));
  background: #07518f;
  color: #fff;
  padding-left: calc(12 * var(--u));
  padding-top: calc(8 * var(--u));
  box-sizing: border-box;
}
.date-box strong {
  display: block;
  font-size: calc(55 * var(--u));
  line-height: 1;
}
.date-box span {
  font-size: calc(20 * var(--u));
}
.feature-title {
  font-size: calc(21 * var(--u));
  font-weight: 700;
  color: #000;
  margin: 0 0 calc(20 * var(--u));
}
.feature-desc {
  font-size: calc(14 * var(--u));
  line-height: 1.5;
  color: #000;
  margin: 0;
}
.list {
  margin-top: calc(25 * var(--u));
  border-top: 1px solid #ddd;
}
.list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  /* min-height: calc(37 * var(--u)); */
  border-bottom: 1px solid #e6e6e6;
  font-size: calc(14 * var(--u));
  color: #323232;
  padding: calc(8 * var(--u)) 0;
}
.list-item:hover{
    color: #033491;
  }
.list-item .title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: 15px;
}
.list-item .date {
  color: #323232;
  flex: 0 0 auto;
}
.more {
  display: block;
  text-align: right;
  margin-top: calc(12 * var(--u));
  color: #033491;
  font-size: calc(12 * var(--u));
}

/* no-image tabs */
.plain-panel {
  padding-top: calc(5 * var(--u));
}
.plain-panel .list {
  /* margin-top: 0; */
  border-top: 1px solid #ddd;
}
.plain-panel .list-item {
  /*min-height: calc(48 * var(--u)); */
  font-size: calc(13 * var(--u));
}
.plain-intro {
  color: #666;
  font-size: calc(13 * var(--u));
  line-height: 2;
  padding: calc(10 * var(--u)) 0 calc(18 * var(--u));
}

/* ---------- Sidebar ---------- */
.side-title {
  font-size: calc(18 * var(--u));
  color: #07518f;
  margin: 0 0 calc(14 * var(--u));
  font-weight: 500;
}
.company-img {
  width: 100%;
  height: calc(145 * var(--u));
  object-fit: cover;
  margin-bottom: calc(12 * var(--u));
}
.company-desc {
  font-size: calc(12 * var(--u));
  line-height: 1.8;
  color: #4c4948;
  margin: 0 0 calc(18 * var(--u));
}
.side-links {
  display: grid;
  gap: calc(10 * var(--u));
}
.side-link {
  height: calc(60 * var(--u));
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 calc(30 * var(--u));
  color: #fff;
  background: linear-gradient(90deg, #1a67a5, #1a67a5);
  font-size: calc(24 * var(--u));
  transition: 0.25s ease;
  overflow: hidden;
  position: relative;
}

.side-link:hover {
  color: #ffffffd1;
  transform: translateX(calc(5 * var(--u)));
  filter: brightness(1.08);
}
.side-link img{
    width: calc(31 * var(--u));
    height: calc(31 * var(--u));
    object-fit: none;
    margin-right: calc(12 * var(--u));
}
.side-link small {
  font-size: calc(10 * var(--u));
  opacity: 0.8;
  margin-left: auto;
}

/* ---------- Footer ---------- */
.footer {
  background: #00448a;
  color: #fff;
  min-height: calc(160 * var(--u));
  padding: calc(25 * var(--u)) 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  align-items: center;
}
.footer-left {
  display: flex;
  align-items: center;
  gap: calc(18 * var(--u));
}
.qr {
  width: calc(106 * var(--u));
  height: calc(106 * var(--u));
  object-fit: cover;
  background: #fff;
  padding: 2px;
}
.footer-text {
  font-size: calc(12 * var(--u));
  height: calc(106 * var(--u));
  color: #8396c7;
  display: flex;
  padding:  calc(5 * var(--u)) 0;
  flex-direction: column;
  justify-content: space-between;
}
.footer-text strong {
  font-size: calc(13 * var(--u));
  color: #fff;
}
.footer-text strong span{
    padding: 0 5px;
}
.footer-text a{
    font-size: calc(16 * var(--u));
    color: #fff;
}
.footer-text a:hover{
  color: #ffffffd1;
}

.footer-text p{
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: calc(10 * var(--u));
}
.footer-right {
  text-align: right;
}
.friend-select {
  display: inline-block;
  width: calc(340 * var(--u));
  max-width: 100%;
  height: calc(34 * var(--u));
  margin-bottom: calc(25 * var(--u));
  position: relative;
}
.friend-select select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 100%;
  border: 0;
  outline: 0;
  border-radius: 2px;
  background: #eef3f6;
  color: #39709a;
  padding: 0 calc(38 * var(--u)) 0 calc(18 * var(--u));
  text-align: center;
  text-align-last: center;
  font-size: calc(12 * var(--u));
  cursor: pointer;
}
.friend-select:after {
  content: "";
  position: absolute;
  right: calc(15 * var(--u));
  top: 50%;
  width: calc(7 * var(--u));
  height: calc(7 * var(--u));
  border-right: 1px solid #39709a;
  border-bottom: 1px solid #39709a;
  transform: translateY(-65%) rotate(45deg);
  pointer-events: none;
}
.friend-select select:hover {
  background: #f6f8fa;
}
.friend-select select:focus {
  box-shadow: 0 0 0 1px rgba(7, 81, 143, 0.2);
}
.copyright {
  font-size: calc(12 * var(--u));
  line-height: 1.8;
  color: #8396c7;
}

/* ---------- Mobile ---------- */
@media (max-width: 768px) {
  :root {
    --page: calc(100vw - 30px);
  }
  .header {
    height: auto;
    min-height: 62px;
  }
  .header-inner {
    min-height: 62px;
    flex-wrap: wrap;
    padding: 8px 0;
  }
  .logo {
    width: 245px;
    min-width: 0;
  }
  .search {
    display: none;
  }
  .nav {
    order: 3;
    width: 100%;
    height: 46px;
    overflow-x: auto;
    justify-content: flex-start;
    border-top: 1px solid #eee;
    margin-top: 7px;
  }
  .nav-item {
    height: 46px;
    padding: 0 12px;
    font-size: 13px;
  }
  .subnav {
    display: none;
  }
  .banner {
    height: 38vw;
    min-height: 210px;
  }
  .banner .swiper-button-next,
  .banner .swiper-button-prev {
    display: none;
  }
  .intro {
    padding: 34px 0 34px;
  }
  .intro-logo {
    width: 72px;
  }
  .intro-title {
    font-size: 20px;
    line-height: 1.5;
    letter-spacing: 1px;
  }
  .intro-title:before,
  .intro-title:after {
    width: 22px;
    margin: 0 8px;
  }
  .business-grid {
    grid-template-columns: 1fr;
    gap: 14px;
    margin-bottom: 42px;
  }
  .business-card {
    height: 360px;
  }
  .business-content {
    left: 20px;
    right: 20px;
    bottom: 22px;
  }
  .business-content h3 {
    font-size: 21px;
  }
  .business-content p {
    font-size: 12px;
  }
  .news-section {
    grid-template-columns: 1fr;
    gap: 35px;
    padding-bottom: 42px;
  }
  .tabs {
    gap: 14px;
    overflow-x: auto;
  }
  .tab {
    font-size: 13px;
    flex: 0 0 auto;
  }
  .feature-image {
    height: 170px;
  }
  .feature-row {
    grid-template-columns: 64px 1fr;
    gap: 12px;
  }
  .date-box {
    width: 64px;
    height: 64px;
  }
  .date-box strong {
    font-size: 27px;
  }
  .feature-title {
    font-size: 16px;
  }
  .list-item {
    min-height: 40px;
    font-size: 12px;
  }
  .side-title {
    font-size: 14px;
  }
  .company-img {
    height: 150px;
  }
  .side-link {
    height: 52px;
    font-size: 14px;
  }
  .footer-inner {
    grid-template-columns: 1fr;
  }
  .footer-right {
    text-align: left;
  }
  .friend-select {
    width: 100%;
  }
  .friend-select select {
    font-size: 12px;
  }
}