:root {
  --blue: #0052d9;
  --ink: #2b2e2e;
  --muted: #5f6464;
  --footer: #28292d;
  --bg: #fbfbfb;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font: 14px/1.5 "Helvetica Neue", Helvetica, tahoma, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; border: 0; }
button { font: inherit; cursor: pointer; }
ul { margin: 0; padding: 0; list-style: none; }

.header_nav {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 20;
  width: 100%;
  height: 72px;
}
.header_content {
  position: relative;
  width: min(1200px, calc(100% - 32px));
  height: 72px;
  margin: 0 auto;
}
.logo { position: absolute; left: 0; top: 22px; }
.logo img { width: 110px; height: 28px; display: block; }
body.home .logo-blue { display: none; }
body.inner .logo-white { display: none; }
body.inner .header_nav { background: #fff; }
body.inner .nav > li > a { color: var(--ink); }

.menu-btn {
  display: none;
  position: absolute;
  right: 0;
  top: 16px;
  width: 40px;
  height: 40px;
  border: 1px solid #e6e6e6;
  background: #fff;
}
.menu-btn span, .menu-btn span:before, .menu-btn span:after {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: var(--ink);
  position: relative;
  content: "";
}
.menu-btn span:before { position: absolute; top: -6px; }
.menu-btn span:after { position: absolute; top: 6px; }

.nav {
  position: absolute;
  right: 0;
  top: 0;
  height: 72px;
}
.nav > li {
  float: left;
  margin-left: 56px;
  position: relative;
  height: 72px;
}
.nav > li > a {
  display: block;
  height: 72px;
  line-height: 72px;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  position: relative;
}
.nav > li > a:after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 19px;
  width: 100%;
  height: 4px;
  background: #194ac3;
  opacity: 0;
  transform: scaleX(0.01);
  transition: transform .2s, opacity .2s;
}
.nav > li:hover > a:after,
.nav > li.active > a:after { opacity: 1; transform: scaleX(1); }
.second_nav {
  display: none;
  position: absolute;
  left: 50%;
  top: 72px;
  width: 180px;
  margin-left: -90px;
  padding: 10px 0 14px;
  text-align: center;
  background: #fff;
  box-shadow: 0 12px 28px rgba(15, 35, 70, 0.14);
  z-index: 30;
}
.second_nav a {
  display: block;
  padding: 12px 16px;
  font-size: 16px;
  line-height: 24px;
  color: var(--ink);
  opacity: .75;
}
.second_nav a:hover { opacity: 1; background: #f3f6fb; }
.nav > li:hover .second_nav { display: block; }

.hero { position: relative; height: 600px; background: #071428; overflow: hidden; }
.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .6s ease;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}
.slide.active { opacity: 1; }
.slide-a { background-image: url("../images/banner1.jpg"); }
.slide-b { background-image: url("../images/banner2.jpg"); }
.slide-c { background-image: url("../images/banner3.jpg"); }
.hero:after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 180px;
  background: linear-gradient(180deg, rgba(0,0,0,0), rgba(0,0,0,.45));
  pointer-events: none;
}
.dots {
  position: absolute;
  z-index: 2;
  left: 37%;
  bottom: 140px;
}
.dots button {
  width: 10px;
  height: 10px;
  margin-left: 12px;
  border: 0;
  background: #fff;
  padding: 0;
  vertical-align: middle;
}
.dots button.active { width: 30px; background: var(--blue); }

.wisdom {
  position: relative;
  z-index: 1;
  margin-top: -120px;
  padding-bottom: 60px;
}
body.home { background: #fbfbfb; }
.wisdom-inner { width: min(1200px, calc(100% - 32px)); margin: 0 auto; }
.wisdom h4 {
  margin: 0 0 12px;
  padding-top: 8px;
  border-top: 1px solid #fff;
  color: #fff;
  font-size: 28px;
  font-weight: 500;
}
.wisdom_grid { display: flex; align-items: flex-start; margin-left: -24px; }
.wisdom_cont_left { width: 65%; }
.wisdom_cont_right { width: 35%; }
.wisdom_card {
  display: flex;
  flex-direction: column;
  width: calc(100% - 24px);
  margin: 0 0 24px 24px;
  background: #fff;
  color: var(--ink);
  transition: transform .3s, box-shadow .3s;
}
.wisdom_card:hover { transform: translateY(-4px); box-shadow: 0 4px 4px rgba(0,0,0,.1); }
.wisdom_cont_left > .wisdom_card,
.wisdom_cont_right .wisdom_card { height: 600px; }
.wisdom_img { position: relative; overflow: hidden; }
.wisdom_img:before { content: ""; display: block; padding-bottom: 56%; }
.wisdom_img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s;
}
.wisdom_card:hover .wisdom_img img { transform: scale(1.05); }
.wisdom_body { padding: 8px 24px 24px; }
.wisdom_tagline {
  position: relative;
  left: -24px;
  display: inline-block;
  margin: 14px 0 8px;
  padding: 0 30px;
  border-top: 1px solid var(--blue);
  color: var(--blue);
  font-size: 18px;
  line-height: 30px;
}
.wisdom_tagline:before {
  content: "";
  position: absolute;
  left: calc(100% - 12px);
  bottom: 0;
  width: 28px;
  border-top: 1px solid var(--blue);
  transform: rotate(-69deg);
  transform-origin: 0 0;
}
.wisdom_tagline:after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: calc(100% - 12px);
  border-top: 1px solid var(--blue);
}
.wisdom_body p { margin: 12px 0; font-size: 16px; line-height: 1.5; }
.wisdom_cont_left2 { display: flex; }
.wisdom_cont_left2 .wisdom_card { width: calc(50% - 24px); height: 600px; }
.tone-blue { background: #0052d9; color: #fff; }
.tone-cyan { background: #00a9ce; color: #fff; }
.tone-gray { background: #d8d7df; }
.tone-blue .wisdom_tagline,
.tone-blue .wisdom_tagline:before,
.tone-blue .wisdom_tagline:after,
.tone-cyan .wisdom_tagline,
.tone-cyan .wisdom_tagline:before,
.tone-cyan .wisdom_tagline:after {
  border-color: #fff;
  color: #fff;
}
.wisdom_cont_left2 .wisdom_img,
.tone-gray .wisdom_img,
.tone-cyan .wisdom_img { height: 40%; }
.wisdom_cont_left2 .wisdom_img:before,
.tone-gray .wisdom_img:before,
.tone-cyan .wisdom_img:before { padding-bottom: 0; height: 100%; }

.page-banner {
  height: 482px;
  background-position: center bottom;
  background-size: cover;
  background-repeat: no-repeat;
}
.page-banner .inner {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
}
.page-banner h1 {
  margin: 0;
  padding-top: 202px;
  font-size: 44px;
  font-weight: 400;
  color: #fff;
}
.page-banner.business {
  background-image: url("../images/business-bg.jpg");
}
.page-banner.business h1 { color: #2a2e2e; text-align: right; font-size: 30px; }
.page-banner.about { background-image: url("../images/about-bg.jpg"); }
.page-banner.contact { background-image: url("../images/contact-bg.jpg"); background-position: center; }
.page-banner.investor { background-image: url("../images/investor-bg.jpg"); background-position: center; }
.page-banner.partner { background-image: url("../images/partner-bg.jpg"); background-position: center; }

.subnav {
  background: var(--bg);
  border-bottom: 1px solid #f4f4f4;
}
.subnav ul {
  display: flex;
  align-items: stretch;
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  height: 53px;
  overflow-x: auto;
}
.subnav li { flex: 0 0 auto; }
.subnav li + li { margin-left: 56px; }
.subnav button {
  height: 53px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--muted);
  font-size: 16px;
  position: relative;
}
.subnav button.active { color: #2a2e2e; }
.subnav button.active:after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--blue);
}
.panel { display: none; }
.panel.active { display: block; }
.sheet { width: min(1200px, calc(100% - 32px)); margin: 0 auto; padding: 96px 0; }
.sheet h2 { margin: 0 0 16px; font-size: 30px; font-weight: 400; text-align: center; }
.sheet h3 { margin: 16px 0; font-size: 20px; font-weight: 400; line-height: 36px; }
.sheet p, .desc { margin: 16px 0; font-size: 16px; line-height: 24px; color: var(--muted); }
.vision {
  display: flex;
  background: var(--bg);
  min-height: 312px;
  padding: 60px 96px;
}
.vision .col { flex: 1; }
.vision .col + .col { margin-left: 80px; padding-left: 60px; border-left: 1px solid #d8d9dc; }
.vision .label { font-size: 30px; }
.vision .sub { margin-top: 10px; font-size: 20px; line-height: 32px; color: var(--ink); }
.history {
  height: 384px;
  background: url("../images/history-bg.jpg") center/cover no-repeat;
  color: #fff;
}
.history h2 { margin: 0; padding-top: 90px; text-align: center; font-size: 30px; font-weight: 400; }
.progress {
  display: flex;
  align-items: center;
  justify-content: center;
  width: min(640px, calc(100% - 32px));
  margin: 70px auto 0;
}
.node { position: relative; width: 30px; height: 30px; border-radius: 50%; background: rgba(255,255,255,.5); flex: none; }
.node .core { position: absolute; top: 4px; left: 4px; width: 22px; height: 22px; border-radius: 50%; background: #fff; }
.node .txt, .node .year {
  position: absolute;
  left: 50%;
  width: 160px;
  margin-left: -80px;
  text-align: center;
}
.node .txt { top: -36px; font-size: 20px; }
.node .year { top: 40px; font-size: 16px; }
.progress .bar { width: 180px; height: 3px; background: rgba(255,255,255,.5); }

.biz-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 96px 0;
}
.biz-row .copy { width: 350px; padding-right: 40px; }
.biz-row h2 { margin: 0 0 24px; font-size: 24px; line-height: 36px; text-align: left; }
.biz-row p { margin: 0 0 12px; font-size: 14px; line-height: 25px; color: var(--muted); }
.biz-row img { width: min(770px, 100%); height: 340px; object-fit: cover; }
.intro-line {
  width: min(1200px, calc(100% - 32px));
  margin: 28px auto 0;
  color: var(--muted);
  font-size: 16px;
}

.block { width: min(1200px, calc(100% - 32px)); margin: 0 auto; padding: 70px 0 90px; }
.block h3 {
  position: relative;
  margin: 0 0 20px;
  padding-left: 14px;
  font-size: 28px;
  font-weight: 400;
  line-height: 1;
}
.block h3:before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 28px;
  background: var(--blue);
}
.contact-line { margin: 0 0 8px; font-size: 20px; line-height: 36px; color: var(--muted); }
.contact-line img { width: 20px; height: 20px; margin-right: 8px; vertical-align: -3px; }
.partner-logo {
  width: 200px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--blue);
  border-radius: 6px;
  padding: 8px;
}
.partner-logo img { width: 100%; height: 100%; object-fit: contain; }
.form { display: grid; gap: 12px; max-width: 480px; margin-top: 28px; }
.form input, .form textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #e4e4e4;
  background: #fff;
}
.form textarea { min-height: 120px; resize: vertical; }
.form button {
  width: 140px;
  height: 40px;
  border: 0;
  background: var(--blue);
  color: #fff;
}

.common-footer { background: var(--footer); color: #999; }
.footer-container {
  width: min(1140px, calc(100% - 32px));
  margin: 0 auto;
  padding: 20px 0 28px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
}
.footer-left img.brand { width: 90px; margin-bottom: 16px; }
.footer-left p, .footer-right p { margin: 0; line-height: 22px; font-size: 12px; }
.footer-right { margin-top: 22px; text-align: right; }
.footer-right a { color: #999; }
.footer-right .line { margin: 0 4px; }
.beian { margin-top: 6px; }
.beian img { width: 18px; height: 18px; vertical-align: -4px; margin-right: 4px; }

@media (max-width: 980px) {
  .menu-btn { display: block; }
  .header_nav, body.inner .header_nav, .header_nav:has(.menu_item:hover) {
    position: sticky;
    background: #fff;
    min-height: 72px;
  }
  .logo-white { display: none !important; }
  .logo-blue { display: block !important; }
  .nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    height: auto;
    background: #fff;
    border-bottom: 1px solid #eee;
    padding: 8px 16px 16px;
  }
  .nav.open { display: block; }
  .nav > li { float: none; margin: 0; height: auto; }
  .nav > li > a { height: auto; line-height: 40px; color: var(--ink) !important; }
  .second_nav { display: block; position: static; width: auto; margin: 0 0 8px 12px; text-align: left; }
  .hero { height: 420px; }
  .dots { left: 16px; bottom: 88px; }
  .wisdom { margin-top: 0; }
  .wisdom h4 { color: var(--ink); border-top-color: var(--blue); }
  .wisdom_grid, .wisdom_cont_left2, .vision, .biz-row, .footer-container { display: block; margin-left: 0; }
  .wisdom_cont_left, .wisdom_cont_right, .wisdom_card, .wisdom_cont_left2 .wisdom_card { width: auto; height: auto; margin-left: 0; }
  .page-banner { height: 280px; }
  .page-banner h1 { padding-top: 96px; font-size: 32px; }
  .sheet, .vision { padding: 40px 0; }
  .vision .col + .col { margin: 24px 0 0; padding: 0; border: 0; }
  .progress .bar { width: 36px; }
  .biz-row img { height: 220px; width: 100%; }
  .footer-right { margin-top: 16px; text-align: left; }
}