.daetool-header-box {
  position: fixed;
  top: 0;
  left: 50%;
  -webkit-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -o-transform: translateX(-50%);
  transform: translateX(-50%);
  z-index: 2025;
  width: 100%;
  height: 64px;
  background: #fff;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  box-sizing: border-box;
  overflow: visible;
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.daetool-header-box.is-over-hero .daetool-header-search {
  background: rgba(255, 255, 255, 0.88);
  border-color: rgba(230, 231, 231, 0.9);
}
.daetool-header-box.is-over-hero.is-scrolled, .daetool-header-box.is-over-hero.is-mega-open {
  background: #fff;
  border-bottom-color: rgba(0, 0, 0, 0.1);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: none;
}
.daetool-header-box.is-over-hero.is-scrolled .daetool-header-search, .daetool-header-box.is-over-hero.is-mega-open .daetool-header-search {
  background: #fff;
  border-color: #e6e7e7;
}
.daetool-header-box.hide {
  display: none;
}
.daetool-header-box .daetool-header-content {
  display: flex;
  flex-wrap: nowrap;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  width: 1200px;
  margin: 0 auto;
  height: 64px;
  position: relative;
  z-index: 3;
}
.daetool-header-box .daetool-header-content .daetool-header-left a {
  display: flex;
  flex-wrap: nowrap;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
}
.daetool-header-box .daetool-header-content .daetool-header-left a img {
  width: auto;
  height: 40px;
}
.daetool-header-box .daetool-header-content .daetool-header-right {
  display: flex;
  flex-wrap: nowrap;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 20px;
  flex-shrink: 0;
}
.daetool-header-box .daetool-header-content .daetool-header-right > a.daetool-header-right-store {
  position: relative;
  width: 76px;
  height: 34px;
  background: linear-gradient(193.7deg, rgba(254, 52, 110, 0.0001) 21.43%, #fe346e 109.98%), linear-gradient(230.42deg, #ff8d43 -18.88%, #ff771d 38.16%, #ff7519 86.42%, #ff7317 92.61%);
  border-radius: 6px;
}
.daetool-header-box .daetool-header-content .daetool-header-right > a.daetool-header-right-store span {
  position: absolute;
  left: 20.5px;
  top: 4.5px;
  font-family: "Microsoft YaHei";
  font-style: normal;
  font-weight: 700;
  font-size: 15px;
  color: #ffffff;
  letter-spacing: 3.5px;
  line-height: normal;
}
.daetool-header-box .daetool-header-content .daetool-header-right > a.daetool-header-right-item {
  color: #FFF;
  text-align: right;
  font-family: "Microsoft YaHei";
  font-size: 18px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
}
.daetool-header-box .daetool-header-content .daetool-header-right .daetool-header-right-status-icon {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
}
.daetool-header-box .daetool-header-content .daetool-header-right .daetool-header-right-status-icon:hover {
  background: rgba(255, 255, 255, 0.1);
}
.daetool-header-box .daetool-header-content .daetool-header-right .daetool-header-right-status-icon img.daetool-header-right-is-login-avatar {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.daetool-header-box .daetool-header-content .daetool-header-right .daetool-header-right-status-icon.checked-islogin {
  margin-left: 16px;
  margin-right: 25px;
}
.daetool-header-box .daetool-header-content .daetool-header-right .daetool-header-right-no-login {
  display: flex;
  justify-content: center;
  align-items: center;
  box-sizing: border-box;
  padding: 8px 28px;
  border-radius: 8px;
  border: 1px solid #4c79ff;
  background: #4c79ff;
  color: #fff;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 15px;
  font-style: normal;
  font-weight: 400;
  line-height: normal;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.daetool-header-box .daetool-header-content .daetool-header-right .daetool-header-right-no-login:hover {
  background: #3d6ae8;
  border-color: #3d6ae8;
}
.daetool-header-box .daetool-header-content .daetool-header-right .daetool-header-right-login {
  cursor: pointer;
  margin-left: 20px;
  position: relative;
}
.daetool-header-box .daetool-header-content .daetool-header-right .daetool-header-right-login > img {
  width: 34px;
  height: 34px;
  border-radius: 50%;
}
.daetool-header-box .daetool-header-content .daetool-header-right .daetool-header-right-login-content {
  position: absolute;
  top: 41px;
  left: 50%;
  -webkit-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -o-transform: translateX(-50%);
  transform: translateX(-50%);
  display: none;
  flex-direction: column;
  align-items: stretch;
  width: 110px;
  box-sizing: border-box;
  padding: 6px;
  border-radius: 12px;
  border: 1px solid #EFEFEF;
  background: #FFF;
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.1);
}
.daetool-header-box .daetool-header-content .daetool-header-right .daetool-header-right-login-content > a {
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  height: 40px;
  border-radius: 8px;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  color: #3A3A3A;
  background: transparent;
  transition: background 0.2s ease, color 0.2s ease;
}
.daetool-header-box .daetool-header-content .daetool-header-right .daetool-header-right-login-content > a:hover {
  background: #EBF2F7;
  color: #4C79FF;
}
.daetool-header-box .daetool-header-content .daetool-header-right .daetool-header-right-login-content.active {
  display: flex;
}

.daetool-secondary-header-box {
  position: fixed;
  left: 0;
  top: 64px;
  width: 100%;
  z-index: 2021;
}
.daetool-secondary-header-box.active {
  top: 0;
  display: block !important;
}
.daetool-secondary-header-box .daetool-secondary-header-content {
  display: flex;
  flex-wrap: nowrap;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  width: 1200px;
  margin: 0 auto;
  height: 67px;
  box-sizing: border-box;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-left {
  display: flex;
  flex-wrap: nowrap;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-gname {
  display: flex;
  flex-wrap: nowrap;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-gname img {
  width: 36px;
  height: 36px;
  margin-right: 10px;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-gname h1 {
  font-family: "Microsoft YaHei";
  font-style: normal;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 1px;
  color: #ffffff;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-tab {
  display: flex;
  flex-wrap: nowrap;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-tab::before {
  content: "";
  display: inline-block;
  width: 1px;
  height: 24px;
  margin-left: 24px;
  margin-right: 40px;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-tab a {
  position: relative;
  display: inline-block;
  height: 52px;
  line-height: 52px;
  font-family: "Microsoft YaHei";
  font-style: normal;
  font-weight: 700;
  font-size: 16px;
  text-align: center;
  letter-spacing: 1px;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-tab a.hide {
  display: none;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-tab a::after {
  position: absolute;
  bottom: 5px;
  left: 50%;
  -webkit-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -o-transform: translateX(-50%);
  transform: translateX(-50%);
  content: "";
  display: none;
  width: 24px;
  height: 2px;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-tab a.active::after {
  display: block;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-tab a:first-child {
  margin-right: 48px;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right {
  display: flex;
  flex-wrap: nowrap;
  flex-direction: row;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-tabs {
  display: flex;
  align-items: center;
  gap: 16px;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-tabs a {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  height: 40px;
  padding: 12px 16px;
  color: #4C79FF;
  text-align: center;
  font-family: "Microsoft YaHei";
  font-size: 15px;
  font-style: normal;
  font-weight: 700;
  line-height: 100%;
  text-decoration: none;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-tabs a.active::after {
  position: absolute;
  bottom: 0;
  left: 50%;
  -webkit-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -o-transform: translateX(-50%);
  transform: translateX(-50%);
  content: "";
  border-radius: 34px;
  background: linear-gradient(90deg, #7695F7 0%, #4C79FF 100%);
  width: 24px;
  height: 2px;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download {
  display: flex;
  flex-wrap: nowrap;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 16px;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn {
  position: relative;
  display: flex;
  flex-wrap: nowrap;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  width: auto;
  height: 40px;
  padding: 8px 14px;
  gap: 8px;
  border-radius: 6px;
  margin-left: 0;
  cursor: pointer;
  text-decoration: none;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn:hover .daetool-secondary-download-innner-btn {
  display: block;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn:hover .daetool-secondary-header-right-qrcode-box {
  display: block;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn > span {
  color: #FFF;
  text-align: center;
  font-family: "Microsoft YaHei";
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn .daetool-secondary-action-icon, .daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn > img {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: #fff;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn .daetool-secondary-download-innner-btn {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 2021;
  display: none;
  width: 146px;
  padding: 2px;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.25);
  box-sizing: border-box;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn .daetool-secondary-download-innner-btn a {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 142px;
  height: 40px;
  padding: 8px 14px;
  box-sizing: border-box;
  border-radius: 6px;
  background: #fff;
  text-decoration: none;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn .daetool-secondary-download-innner-btn a img {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn .daetool-secondary-download-innner-btn a span {
  margin: 0;
  color: #333;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 14px;
  font-style: normal;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn .daetool-secondary-download-innner-btn a:hover {
  background: #fff;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn.daetool-procenter-download-btn--win .daetool-secondary-download-innner-btn a:hover {
  background: linear-gradient(0deg, rgba(32, 177, 255, 0.15) 0%, rgba(32, 177, 255, 0.15) 100%), #fff;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn.daetool-procenter-download-btn--mac .daetool-secondary-download-innner-btn a:hover {
  background: linear-gradient(0deg, rgba(91, 132, 255, 0.15) 0%, rgba(91, 132, 255, 0.15) 100%), #fff;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn .daetool-secondary-header-right-qrcode-box {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 2022;
  display: none;
  padding: 11px;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.25);
  text-align: center;
  box-sizing: border-box;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn .daetool-secondary-header-right-qrcode-box p {
  margin: 3px 0 0;
  font-family: "Microsoft YaHei", sans-serif;
  font-style: normal;
  font-weight: 400;
  font-size: 12px;
  line-height: 16px;
  letter-spacing: 0;
  color: #1a1a1a;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right > a.daetool-secondary-header-right-buy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-sizing: border-box;
  width: auto;
  height: 40px;
  padding: 8px 14px;
  border-radius: 8px;
  margin-left: 0;
  text-decoration: none;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right > a.daetool-secondary-header-right-buy span {
  font-family: "Microsoft YaHei";
  font-style: normal;
  font-weight: 400;
  font-size: 16px;
  line-height: 1;
}
.daetool-secondary-header-box .daetool-secondary-header-content .daetool-secondary-header-right > a.daetool-secondary-header-right-buy .daetool-secondary-action-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}
.daetool-secondary-header-box.black-theme {
  background: #000000;
}
.daetool-secondary-header-box.black-theme .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-gname h1 {
  color: #ffffff;
}
.daetool-secondary-header-box.black-theme .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-tab::before {
  background: rgba(255, 255, 255, 0.3);
}
.daetool-secondary-header-box.black-theme .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-tab a {
  color: rgba(255, 255, 255, 0.7);
}
.daetool-secondary-header-box.black-theme .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-tab a.active {
  color: #ffffff;
}
.daetool-secondary-header-box.black-theme .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-tab a.active::after {
  background: #ffffff;
}
.daetool-secondary-header-box.black-theme .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-tab a:hover {
  color: #ffffff;
}
.daetool-secondary-header-box.black-theme .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download a {
  background: linear-gradient(115.32deg, #0bb2c3 27.58%, #01d8ca 114.41%, #00ddcb 172.2%);
}
.daetool-secondary-header-box.black-theme .daetool-secondary-header-content .daetool-secondary-header-right > a.daetool-secondary-header-right-buy {
  background: linear-gradient(138.19deg, rgba(11, 178, 195, 0.2) 7.65%, rgba(1, 216, 202, 0.2) 65.42%, rgba(0, 221, 203, 0.2) 103.87%);
  border: 1px solid rgb(25, 212, 231);
}
.daetool-secondary-header-box.black-theme .daetool-secondary-header-content .daetool-secondary-header-right > a.daetool-secondary-header-right-buy span {
  background: linear-gradient(137.89deg, #19d4e7 35.82%, #01d8ca 76.66%, #00ddcb 103.85%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
}
.daetool-secondary-header-box.white-theme {
  background: #ffffff;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  box-sizing: border-box;
}
.daetool-secondary-header-box.white-theme .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-gname h1 {
  color: #000000;
}
.daetool-secondary-header-box.white-theme .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-tab::before {
  background: rgba(0, 0, 0, 0.1);
}
.daetool-secondary-header-box.white-theme .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-tab a {
  color: #000000;
}
.daetool-secondary-header-box.white-theme .daetool-secondary-header-content .daetool-secondary-header-left .daetool-secondary-header-left-tab a.active::after {
  background: #000000;
}
.daetool-secondary-header-box.white-theme .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn {
  border-radius: 6px;
  background: #4C79FF;
}
.daetool-secondary-header-box.white-theme .daetool-secondary-header-content .daetool-secondary-header-right .daetool-secondary-header-right-download .daetool-secondary-download-outer-btn:hover {
  background: #375FDF;
}
.daetool-secondary-header-box.white-theme .daetool-secondary-header-content .daetool-secondary-header-right > a.daetool-secondary-header-right-buy {
  background: rgba(76, 121, 255, 0.1);
  border: 1px solid rgba(76, 121, 255, 0.45);
  transition: background 0.2s ease;
}
.daetool-secondary-header-box.white-theme .daetool-secondary-header-content .daetool-secondary-header-right > a.daetool-secondary-header-right-buy span {
  color: #4C79FF;
}
.daetool-secondary-header-box.white-theme .daetool-secondary-header-content .daetool-secondary-header-right > a.daetool-secondary-header-right-buy .daetool-secondary-action-icon {
  color: #4C79FF;
}
.daetool-secondary-header-box.white-theme .daetool-secondary-header-content .daetool-secondary-header-right > a.daetool-secondary-header-right-buy:hover {
  background: rgba(76, 121, 255, 0.2);
}
.daetool-secondary-header-box.white-theme .daetool-secondary-header-content .daetool-secondary-header-right > a.daetool-secondary-header-right-buy:active {
  background: rgba(76, 121, 255, 0.05);
}

.daetool-header-search {
  display: flex;
  align-items: center;
  box-sizing: border-box;
  min-width: 246px;
  height: 40px;
  padding: 8px 24px;
  gap: 32px;
  border-radius: 40px;
  border: 1px solid #e6e7e7;
  background: #fff;
  transition: border-color 0.2s ease;
}
.daetool-header-search:focus-within {
  border-color: #4c79ff;
}
.daetool-header-search__input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  color: #1a1a1a;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 15px;
  font-weight: 400;
  line-height: normal;
}
.daetool-header-search__input::placeholder {
  color: #a5a5a5;
}
.daetool-header-search__input::-webkit-search-cancel-button {
  display: none;
}
.daetool-header-search__submit {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
}
.daetool-header-search__icon {
  display: block;
  width: 24px;
  height: 24px;
}

.daetool-header-center {
  line-height: 64px;
  display: flex;
  align-items: center;
  flex: 1;
  justify-content: center;
  gap: 40px;
  margin: 0 24px;
  min-width: 0;
}

.daetool-header-center-nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.daetool-header-center-support {
  color: #1a1a1a;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: normal;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s ease;
}
.daetool-header-center-support:hover, .daetool-header-center-support.active {
  color: #4c79ff;
}

.daetool-header-nav-type {
  position: relative;
  cursor: default;
  user-select: none;
}
.daetool-header-nav-type__label {
  color: #1a1a1a;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: normal;
  white-space: nowrap;
  transition: color 0.2s ease;
}
.daetool-header-nav-type.is-active .daetool-header-nav-type__label, .daetool-header-nav-type:hover .daetool-header-nav-type__label {
  color: #4c79ff;
}

.daetool-header-mega-layer {
  position: absolute;
  top: 64px;
  left: 0;
  z-index: 4;
  width: 100%;
  pointer-events: none;
}
.daetool-header-mega-layer.is-open {
  pointer-events: auto;
}

.daetool-header-mega-panel {
  display: none;
  width: 100%;
  background: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}
.daetool-header-mega-panel.is-active {
  display: block;
}
.daetool-header-mega-panel__inner {
  width: 1200px;
  margin: 0 auto;
  padding: 24px 0 0;
  box-sizing: border-box;
}
.daetool-header-mega-panel__tabs {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.daetool-header-mega-panel__tab {
  padding: 11px 32px;
  border: none;
  border-radius: 6px;
  font-weight: 700;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.05) 0%, rgba(0, 0, 0, 0.05) 100%), rgba(255, 255, 255, 0.2);
  color: #1a1a1a;
  font-size: 15px;
  line-height: 1.2;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, font-weight 0.2s ease;
}
.daetool-header-mega-panel__tab:hover:not(.is-active) {
  color: #4c79ff;
}
.daetool-header-mega-panel__tab.is-active {
  color: #4c79ff;
  background: linear-gradient(0deg, rgba(67, 114, 255, 0.1) 0%, rgba(67, 114, 255, 0.1) 100%), #FFF;
}
.daetool-header-mega-panel__body {
  position: relative;
  min-height: 120px;
  padding-bottom: 24px;
}
.daetool-header-mega-panel__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 24px;
  max-height: 320px;
  overflow-y: auto;
  scrollbar-width: thin;
}
.daetool-header-mega-panel__grid::-webkit-scrollbar {
  width: 6px;
}
.daetool-header-mega-panel__grid::-webkit-scrollbar-thumb {
  border-radius: 4px;
  background: #e5e5e5;
}
.daetool-header-mega-panel__product {
  display: flex;
  align-items: center;
  gap: 16px;
  box-sizing: border-box;
  flex: 0 0 calc((100% - 48px) / 3);
  max-width: calc((100% - 48px) / 3);
  padding: 16px 20px;
  border-radius: 8px;
  border: 1px solid transparent;
  text-decoration: none;
  transition: background 0.2s ease;
}
.daetool-header-mega-panel__product img {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 8px;
  object-fit: cover;
}
.daetool-header-mega-panel__product:hover {
  border-radius: 6px;
  border: 1px solid #D8E1FF;
  background: #EDF1FF;
}
.daetool-header-mega-panel__product:hover h3 {
  color: #4c79ff;
}
.daetool-header-mega-panel__product-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  min-width: 0;
  flex: 1;
}
.daetool-header-mega-panel__product-info h3 {
  align-self: stretch;
  margin: 0;
  color: #1a1a1a;
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  transition: color 0.2s ease, font-weight 0.2s ease;
  display: inline-block;
  -webkit-box-orient: vertical;
  -ms-box-orient: vertical;
  -moz-box-orient: vertical;
  -o-box-orient: vertical;
  box-orient: vertical;
  -webkit-line-clamp: 1;
  -ms-line-clamp: 1;
  -moz-line-clamp: 1;
  -o-line-clamp: 1;
  line-clamp: 1;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.daetool-header-mega-panel__product-info p {
  align-self: stretch;
  width: 100%;
  margin: 0;
  color: rgba(26, 26, 26, 0.8);
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.2;
  display: inline-block;
  -webkit-box-orient: vertical;
  -ms-box-orient: vertical;
  -moz-box-orient: vertical;
  -o-box-orient: vertical;
  box-orient: vertical;
  -webkit-line-clamp: 1;
  -ms-line-clamp: 1;
  -moz-line-clamp: 1;
  -o-line-clamp: 1;
  line-clamp: 1;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.daetool-header-mega-panel__more {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  box-sizing: border-box;
  width: 100%;
  height: 48px;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  background: #fff;
  color: #1a1a1a;
  text-decoration: none;
  transition: color 0.2s ease;
}
.daetool-header-mega-panel__more:hover {
  color: #4c79ff;
}
.daetool-header-mega-panel__more-text {
  font-family: "Microsoft YaHei", sans-serif;
  font-size: 14px;
  font-weight: 400;
  line-height: normal;
}
.daetool-header-mega-panel__more-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
}

.black-overlay {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  width: 100%;
  height: calc(100vh - 64px);
  background: rgba(0, 0, 0, 0.5);
  z-index: 1;
  pointer-events: none;
}
.black-overlay.show {
  display: block;
  pointer-events: auto;
}