@font-face {
  font-family: 'phone';
  src: url('../font/D-DINExp-Bold.ttf') format('truetype');
}
body {
  margin: 0;
  overflow-x: hidden;
  font-family: 'phone', 'PingFang SC', 'Helvetica Neue', Helvetica, Arial, 'Hiragino Sans GB', 'Heiti SC', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
  font-size: 16px;
  font-weight: 400;
  box-sizing: border-box;
}
body * {
  box-sizing: border-box;
}
button {
  border: none;
  outline: none;
}
p {
  margin: 0;
}
a {
  text-decoration: none;
  color: inherit;
}
/* 蒙层 */
.masking {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  margin: auto;
  background: rgba(0, 0, 0, 0.7);
}

/* 块标题 */
.block-title {
  font-size: 30px;
  font-family: PingFangSC, PingFang SC;

  font-weight: 500;
  color: #333333;
  line-height: 30px;
  text-align: center;
  position: relative;
}

.block-text {
  color: #666666;
  line-height: 16px;
  margin-top: 30px;
  text-align: center;
}
/* 卡片文本样式 */
.card-title {
  font-size: 20px;
  font-family: PingFangSC, PingFang SC;

  font-weight: 500;
  color: #333333;
  line-height: 20px;
}
.card-text {
  font-size: 14px;
  color: #666666;
  line-height: 24px;
}

/* 导航栏 */
.nav-bar {
  padding: 11px 0;
  width: 100%;
  position: fixed;
  top: 0;
  background: white;
  z-index: 999;
  box-shadow: 0px 3px 10px 0px rgba(0, 0, 0, 0.07);
}
.nav-bar__container {
  display: flex;
  align-items: center;
  width: 1200px;
  margin: auto;
}
.nav-bar__logo {
  flex: 1;
}
.nav-bar__logo img {
  width: 165px;
  height: 18px;
}
.nav-bar__slogan {
  font-size: 18px;
  color: #adadad;
  line-height: 12px;
  letter-spacing: 9.5px;
  margin-top: 4px;
}
.nav-bar__item {
  color: #333333;
  line-height: 22px;
  padding-right: 62px;
  cursor: pointer;
}
.nav-bar__item:hover {
  color: #2c4ab2;
}

.nav-bar__attention {
  border: 1px solid #efefef;
  /* outline: solid #efefef; */
  border-radius: 2px;
  font-size: 14px;
  line-height: 14px;
  padding: 10px;
  display: flex;
  align-items: center;
  position: relative;
  width: 104px;
  height: 40px;
}
.nav-bar__attention:hover {
  border-color: #2c4ab2;
}
.nav-bar__attention > img {
  margin-right: 6px;
}

/* banner区域 */
.banner {
  height: 540px;
  display: flex;
  background: url('../img/banner.png');
  background-size: 100% 100%;
  align-items: center;
  justify-content: center;
}
.banner-2 {
  height: calc(100vw * 0.177);
  display: flex;
  background: url('../img/banner-sub.png');
  background-size: 100% 100%;
  align-items: center;
  justify-content: center;
}
.banner__introduction {
  width: 706px;
}
.banner__introduction__title {
  font-size: 40px;
  font-weight: 600;
  font-family: PingFangSC, PingFang SC;

  color: #ffffff;
  line-height: 60px;
  text-align: center;
}
.banner__introduction__title span {
  letter-spacing: 0.6px;
}
.banner__introduction__subtitle {
  font-family: PingFangSC, PingFang SC;
  font-weight: 400;
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 30px;
  margin-top: 24px;
  text-align: center;
}
/* 底部 */
.footer {
  background: #1d1d1d;
  font-family: PingFangSC, PingFang SC;
  font-weight: 400;
  text-align: left;
  font-style: normal;
}
.footer-section {
  height: 257px;
  width: 1200px;
  margin: auto;
  padding-top: 57px;
}

.footer-logo img {
  width: 234px;
  height: 23px;
}

.footer-content {
  margin-top: 21px;
  font-family: PingFangSC, PingFang SC;
  font-weight: 400;
  font-size: 14px;
  color: #d6d6d6;
  display: flex;
  justify-content: space-between;
}

.footer-content-left {
  width: 20%;
  line-height: 30px;
}

.footer-content-right {
  line-height: 20px;
  width: 50%;
  display: flex;
  justify-content: space-between;
}
.footer-content-right-title {
  font-weight: 500;
  font-size: 16px;
  color: #ffffff;
}

/*  */
.case-title {
  width: 240px;
  height: 56px;
  font-weight: 500;
  font-size: 40px;
  line-height: 56px;
  margin-bottom: 24px;
}
.case-tip {
  width: 619px;
  /* height: 75px; */
  font-size: 16px;
  line-height: 28px;
  color: rgba(255, 255, 255, 0.8);
}

.total-title {
  width: 1200px;
  margin: 78px auto 48px;
  text-align: center;
  font-weight: 500;
  font-size: 40px;
  color: #222222;
}
/* 奇数样式 */
.odd-container {
  width: 1200px;
  margin: auto;
  padding: 0 48px;
  box-sizing: border-box;
}
.odd-section-content {
  display: flex;
}
.odd-section-content img {
  width: 100%;
  height: 100%;
}
.info-container {
  margin-left: 68px;
  margin-top: 83px;
}

.even-info-container {
  margin-top: 83px;
  width: 526px;
}

.info-title {
  height: 33px;
  font-weight: 500;
  font-size: 24px;
  color: #222222;
  line-height: 33px;
  margin-bottom: 8px;
}
.info-tip {
  margin-top: 16px;
}

.info-tip img {
  width: 16px;
  height: 16px;
  vertical-align: middle;
  margin-right: 6px;
}
/*偶数样式 */
.even-container {
  width: 1200px;
  margin: auto;
  padding: 0 82px;
  box-sizing: border-box;
  margin-bottom: 59px;
}
.even-section-content {
  display: flex;
}
.section-pic img {
  height: 100%;
  width: 100%;
}
.info-tip img {
  width: 16px;
  height: 16px;
  vertical-align: middle;
  margin-right: 6px;
}

/* 广告合作案例 */
.ad-section {
  height: 720px;
  padding-top: 100px;
  box-sizing: border-box;
  margin: auto;
  font-family: PingFangSC, PingFang SC;
  font-weight: 400;
  font-size: 20px;
  color: #222222;
  text-align: left;
  font-style: normal;
  text-transform: none;
  background: #f3f5f8;
}

.ad-section-content {
  width: 1200px;
  height: 100%;
  margin: auto;
}
.ad-section-title {
  height: 50px;
  font-weight: 500;
  font-size: 48px;
  line-height: 50px;
  text-align: center;
  margin-bottom: 108px;
}
.ad-content {
  display: flex;
}
.ad-pic {
  width: 680px;
  height: 340px;
  margin-right: 56px;
}

.ad-tip {
  flex: 1;
  height: 340px;
  padding: 14px 0;
  box-sizing: border-box;
  font-weight: 500;
  font-size: 26px;
  line-height: 40px;
}
.ad-tip-title {
  margin-top: 24px;
}

.ad-tip ul {
  font-weight: 400;
  font-size: 16px;
  color: rgba(34, 34, 34, 0.65);
  line-height: 32px;
  list-style-type: disc;
  margin: 0 30px;
  padding: 7px 0;
}
.ad-tip ul li {
  padding: 3px 0;
}

/* 合作方案 */
.cooperate {
  height: 720px;
  background: #ffffff;
}
.cooperate-img-container {
  height: 348px;
  width: 1200px;
  margin: 0 auto;
}
.cooperate-img-container img {
  height: 100%;
  width: 100%;
}

.product {
  height: 996px;
  background: #ffffff;
}