.wyjx.son-header-page {
  min-width: 1400px;
  margin: auto;
  box-sizing: border-box;
}

.wyjx.son-header-page * {
  box-sizing: border-box;
}

/* 头部 */
.son-header {
  position: relative;
  height: clamp(189px, 13.542vw, 260px);
  background: linear-gradient(180deg, #0B4DA0 25%, rgba(7, 104, 225, 0.2) 100%);
  /* overflow: hidden; */
}
.son-header.fixed{
	position: fixed;
	top: 0;
	width: 100%;
	z-index: 10;
	left: 0;
	margin-top: 0;
	height: auto;
  background:url(../images/sy-bg1.png) no-repeat;
	background-size: 1920px 100%;
	background-position: top center;
  overflow: visible;
}
.son-header.fixed .son-header-logo a{
  width: 204px;
  height: auto;
}

.son-header-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1920px;
  min-width: 1400px;
  height: 100%;
  margin: 0 auto;
  width: 1600px;
}

.son-header-inner .sy-top-rt {
  position: absolute;
  /* right: clamp(49px, 3.542vw, 68px); */
  right:0;
  top: 16px;
  /* top: clamp(11px, 0.833vw, 16px); */
  z-index: 4;
  display: flex;
  align-items: center;
}

.son-header-inner .sy-top-rt a,
.son-header-inner .sy-top-rt .sytr-p2 {
  float: left;
  display: flex;
  align-items: center;
}

.son-header-inner .sytr-p1 {
  font-size: clamp(12px, 0.833vw, 16px);
  line-height: 1.125;
  letter-spacing: 1px;
  color: #ffffff;
  /* margin-top: clamp(4px, 0.313vw, 6px); */

  font-size: 16px;
    line-height: 18px;
    letter-spacing: 1px;
}

.son-header-inner .sytr-p1 img {
  height: clamp(12px, 0.833vw, 16px);
  float: left;
  margin-right: 5px;
}

.son-header-inner .sytr-p2 {
  margin-left: clamp(13px, 0.938vw, 18px);
  /* margin-right: clamp(16px, 1.198vw, 23px); */
  width: clamp(34px, 2.396vw, 46px);
  height: clamp(22px, 1.563vw, 30px);
  background: #2c69b2;
  border-radius: 15px;
  justify-content: center;
  overflow: hidden;
  cursor: pointer;
  transition: width 0.3s ease, padding 0.3s ease;
  flex-shrink: 0;
  padding: 0;

  width: 46px;
    height: 30px;

    margin-left:20px;
}

.son-header-inner .sytr-p2:hover,
.son-header-inner .sytr-p2:focus-within {
  width: clamp(160px, 10.417vw, 200px);
  padding: 0 clamp(10px, 0.625vw, 12px);
  justify-content: flex-start;
}

.son-header-inner .sytr-p2 img {
  flex-shrink: 0;
  height: 19px;
}

.son-header-inner .sytr-search-input {
  flex: 0 0 0;
  width: 0;
  min-width: 0;
  height: 100%;
  margin-left: 0;
  padding: 0;
  border: none;
  background: transparent;
  font-size: clamp(11px, 0.729vw, 14px);
  line-height: 1;
  color: #fff;
  outline: none;
  opacity: 0;
  overflow: hidden;
  transition: opacity 0.3s ease, margin-left 0.3s ease, flex 0.3s ease;
}

.son-header-inner .sytr-p2:hover .sytr-search-input,
.son-header-inner .sytr-p2:focus-within .sytr-search-input {
  flex: 1 1 auto;
  width: auto;
  margin-left: clamp(6px, 0.417vw, 8px);
  opacity: 1;
}

.son-header-inner .sytr-search-input::placeholder {
  color: rgba(255, 255, 255, 0.75);
}

.son-header-inner .sytr-p3 {
  width: clamp(59px, 4.219vw, 81px);
  height: clamp(21px, 1.51vw, 29px);
  background-color: rgba(15, 53, 108, 0.5);
  border-radius: 4px;
  justify-content: center;
  font-size: clamp(11px, 0.729vw, 14px);
  line-height: 1.286;
  letter-spacing: 1px;
  color: #ffffff;
}

.son-header-inner .sytr-p3 img {
  display: block;
  width: clamp(11px, 0.781vw, 15px);
  margin-right: 4px;
}

.son-header-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: start;
  width: 100%;
  height: 100%;
  /* padding: clamp(44px, 3.177vw, 61px) clamp(49px, 3.542vw, 68px) 0; */
  /* padding: 0 clamp(49px, 3.542vw, 68px) 0; */
}

.son-header-nav-track {
  display: contents;
}

.son-header-logo {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  justify-self: center;
  align-self: start;
  margin-top: clamp(-7px, -0.521vw, -10px);
  flex-shrink: 0;
}

.son-header-logo a {
  display: block;
  line-height: 0;
  margin-top:7px;
  transition: width 0.5s ease;
  width: 304px;
  height: 233px;
}

.son-header-logo img {
  display: block;
  width: 100%;
}

.son-header-nav a,
.son-subnav a {
  font-family: "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  white-space: nowrap;
}
.navlf-item{
  position: relative;
  min-height: 51px;
}
.son-header-nav a.navlf-parent {
  /* font-size: clamp(17.5px, 1.25vw, 24px); */
  font-weight: 900;
  color: #fff;
  line-height: 1.46;

      font-size: 22px;
      font-weight: bold;
}
.navlf-child{
  position: absolute;
  width: 150px;
  text-align: center;
  display: none;
  background:#fff;
  left: -26px;
  border-radius: 4px;
  box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.45);
  top: 45px;
}
.navlf-item:hover .navlf-child{
  display: block;
  height: auto;
}
.navlf-item:hover .navlf-child::before{
  content: "";
  display: block;
  width: 14px;
  height: 8px;
  margin: auto;
  margin-top: -5px;
  position: relative;
  z-index: 1;
  background:url(../images/header-icon4.png) no-repeat;
}
.navlf-child>a{
  font-size: 16px;
  /* font-weight: 900; */
  color: #000;
  line-height: 1.46;
  display: block;
  padding: 10px 0;
  border-bottom: 1px solid #F1F1F1;
}
.navlf-child>a:last-child{
  border-bottom: none;
}
.navlf-child>a:hover{
  color: #0B4FA4;
}
.son-header-nav .nav-left,
.son-header-nav .nav-right {
  display: flex;
  align-items: center;
  padding: clamp(44px, 2.77vw, 61px) 0;
  /* gap: clamp(45px, 3.229vw, 62px); */
  /* gap: clamp(33px, 1.229vw, 61px); */
justify-content: space-between;
}

.son-header-nav .nav-left {
  grid-column: 1;
  grid-row: 1;
  /* justify-content: flex-end; */
  padding-right: clamp(24px, 2.93vw, 40px);
}

.son-header-nav .nav-right {
  grid-column: 3;
  grid-row: 1;
  /* justify-content: flex-start; */
  padding-left: clamp(24px, 2.93vw, 40px);
}

.son-header-nav .nav-left a.active,.son-header-nav .nav-right a.active {
  position: relative;
}

.son-header-nav .nav-left a.active::after,.son-header-nav .nav-right a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: #fff;
  border-radius: 2px;
}

/* 二级导航 */
.son-subnav {
  height: clamp(51px, 3.646vw, 70px);
  background: #EEF6FF;
}

.son-subnav-inner {
  width: 100%;
  max-width: 1920px;
  min-width: 1400px;
  margin: 0 auto;
  padding-left: clamp(37px, 2.604vw, 50px);
  padding-right: clamp(49px, 3.542vw, 68px);
  display: flex;
  align-items: center;
  height: 100%;
  gap: clamp(45px, 3.229vw, 82px);
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
}

.son-subnav a {
  flex-shrink: 0;
  font-size: clamp(16px, 1.146vw, 22px);
  font-weight: 700;
  color: #3D3D3D;
  line-height: 1.46;
}

.son-subnav a.active {
  color: #184E90;
  font-weight: 900;
}

/* H5 专用结构，PC 隐藏 */
.son-header-h5-top,
.son-header-h5-logo,
.son-header-h5-panel {
  display: none;
}

.son-header-menu-btn {
  border: none;
  padding: 0;
  background: none;
  cursor: pointer;
}

.son-header-menu-icon {
  display: block;
}

.son-header-menu-icon--close {
  opacity: 0;
}

@media screen and (max-width: 768px) {
  .wyjx.son-header-page {
    min-width: 0;
    width: 100%;
  }

  .son-header {
    height: 1.89rem;
    background: #0B4DA0;
    z-index: 100;
    overflow: hidden;
  }

  .son-header-inner {
    min-width: 0;
    max-width: none;
    width: 100%;
  }

  .son-header-pc-top,
  .son-header-pc-nav,.son-header-inner .sy-top-rt {
    display: none;
  }

  .son-header-h5-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    position: absolute;
    left: 0;
    right: 0;
    top: 0.39rem;
    z-index: 6;
    padding: 0 0.33rem 0 0.16rem;
  }

  .son-header-h5-link {
    display: flex;
    align-items: center;
    max-width: 2.1rem;
    font-size: 0.24rem;
    line-height: 1.33;
    letter-spacing: -0.01rem;
    color: #fff;
  }

  .son-header-h5-link img {
    width: 0.29rem;
    height: 0.28rem;
    margin-right: 0.04rem;
    flex-shrink: 0;
  }

  .son-header-h5-link span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .son-header-menu-btn {
    width: 0.42rem;
    height: 0.41rem;
    flex-shrink: 0;
    position: relative;
  }

  .son-header-menu-icon--open,
  .son-header-menu-icon--close {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    transition: opacity 0.25s ease, transform 0.25s ease;
  }

  .son-header-menu-icon--open {
    width: 0.41rem;
    height: 0.32rem;
    opacity: 1;
    transform: translate(-50%, -50%) rotate(0deg) scale(1);
    background:
      linear-gradient(#fff, #fff) center top / 100% 0.04rem no-repeat,
      linear-gradient(#fff, #fff) center / 100% 0.04rem no-repeat,
      linear-gradient(#fff, #fff) center bottom / 100% 0.04rem no-repeat;
  }

  .son-header-menu-icon--close {
    width: 0.35rem;
    height: 0.37rem;
    opacity: 0;
    transform: translate(-50%, -50%) rotate(90deg) scale(0.8);
  }

  .son-header-menu-icon--close::before,
  .son-header-menu-icon--close::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 100%;
    height: 0.04rem;
    background: #fff;
  }

  .son-header-menu-icon--close::before {
    transform: translate(-50%, -50%) rotate(45deg);
  }

  .son-header-menu-icon--close::after {
    transform: translate(-50%, -50%) rotate(-45deg);
  }

  .son-header-h5-logo {
    display: block;
    position: absolute;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    z-index: 5;
    line-height: 0;
  }

  .son-header-h5-logo img {
    width: 3.03rem;
    height: auto;
    display: block;
  }

  .son-header.is-menu-open .son-header-menu-icon--open {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(-90deg) scale(0.8);
  }

  .son-header.is-menu-open .son-header-menu-icon--close {
    opacity: 1;
    transform: translate(-50%, -50%) rotate(0deg) scale(1);
  }

  .son-header-h5-panel {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    top: 1.89rem;
    bottom: 0;
    z-index: 99;
    background: rgba(0, 32, 88, 0.85);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0s linear 0.3s;
  }

  .son-header.is-menu-open .son-header-h5-panel {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transition: opacity 0.3s ease, visibility 0s linear 0s;
  }

  .son-header-h5-panel-inner {
    padding: 0.27rem 0.36rem 0.4rem;
  }

  .son-header-h5-search {
    display: flex;
    align-items: center;
    height: 0.6rem;
    padding: 0 0.2rem 0 0.32rem;
    background: #234071;
    border: 0.01rem solid #fff;
    box-sizing: border-box;
    opacity: 0;
    transform: translateY(-0.12rem);
    transition: opacity 0.3s ease 0.1s, transform 0.3s ease 0.1s;
  }

  .son-header.is-menu-open .son-header-h5-search {
    opacity: 1;
    transform: translateY(0);
  }

  .son-header-h5-search-input {
    flex: 1;
    min-width: 0;
    height: 100%;
    border: none;
    background: transparent;
    font-size: 0.24rem;
    line-height: 1;
    color: #fff;
    outline: none;
  }

  .son-header-h5-search-input::placeholder {
    color: #fff;
  }

  .son-header-h5-search-btn {
    flex-shrink: 0;
    width: 0.37rem;
    height: 0.36rem;
    margin-left: 0.1rem;
    padding: 0;
    border: none;
    background: none;
    cursor: pointer;
  }

  .son-header-h5-search-btn img {
    width: 100%;
    height: 100%;
    display: block;
  }

  .son-header-h5-nav {
    margin-top: 0.24rem;
  }

  /* 每个栏目项（主链接 + 可展开子栏目）整体渐入 */
  .son-header-h5-nav-item {
    opacity: 0;
    transform: translateY(-0.1rem);
    transition: opacity 0.3s ease, transform 0.3s ease;
  }

  .son-header.is-menu-open .son-header-h5-nav-item {
    opacity: 1;
    transform: translateY(0);
  }

  .son-header.is-menu-open .son-header-h5-nav-item:nth-child(1) { transition-delay: 0.08s; }
  .son-header.is-menu-open .son-header-h5-nav-item:nth-child(2) { transition-delay: 0.12s; }
  .son-header.is-menu-open .son-header-h5-nav-item:nth-child(3) { transition-delay: 0.16s; }
  .son-header.is-menu-open .son-header-h5-nav-item:nth-child(4) { transition-delay: 0.2s; }
  .son-header.is-menu-open .son-header-h5-nav-item:nth-child(5) { transition-delay: 0.24s; }
  .son-header.is-menu-open .son-header-h5-nav-item:nth-child(6) { transition-delay: 0.28s; }
  .son-header.is-menu-open .son-header-h5-nav-item:nth-child(7) { transition-delay: 0.32s; }
  .son-header.is-menu-open .son-header-h5-nav-item:nth-child(8) { transition-delay: 0.36s; }
  .son-header.is-menu-open .son-header-h5-nav-item:nth-child(9) { transition-delay: 0.4s; }
  .son-header.is-menu-open .son-header-h5-nav-item:nth-child(10) { transition-delay: 0.44s; }

  /* 栏目头：主链接 + 加号/减号按钮 */
  .son-header-h5-nav-head {
    display: flex;
    align-items: center;
  }

  .son-header-h5-nav-head > a {
    flex: 1;
    min-width: 0;
    display: block;
    padding: 0.22rem 0.09rem;
    font-size: 0.28rem;
    line-height: 1.32;
    color: #fff;
    border-bottom: 0.01rem solid rgba(255, 255, 255, 0.2);
  }

  .son-header-h5-nav-item:last-child .son-header-h5-nav-head > a {
    border-bottom: none;
  }

  .son-header-h5-sub-toggle {
    position: relative;
    flex-shrink: 0;
    width: 0.44rem;
    height: 0.44rem;
    margin-left: 0.12rem;
    border: 0.01rem solid rgba(255, 255, 255, 0.45);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    cursor: pointer;
  }

  .son-header-h5-sub-toggle .son-header-h5-sub-icon {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 0.22rem;
    height: 0.22rem;
    transform: translate(-50%, -50%);
  }

  .son-header-h5-sub-icon::before,
  .son-header-h5-sub-icon::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    background: #fff;
    transition: transform 0.25s ease;
  }

  /* 加号：横线 + 竖线 */
  .son-header-h5-sub-icon::before {
    width: 100%;
    height: 0.03rem;
    transform: translate(-50%, -50%);
  }

  .son-header-h5-sub-icon::after {
    width: 0.03rem;
    height: 100%;
    transform: translate(-50%, -50%) rotate(0deg);
  }

  /* 展开后竖线旋转 90° 与横线重合为减号 */
  .son-header-h5-nav-item.is-sub-open .son-header-h5-sub-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
  }

  /* 子栏目列表：默认收起，展开时滑出 */
  .son-header-h5-sub {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .son-header-h5-nav-item.is-sub-open .son-header-h5-sub {
    max-height: 6rem;
  }

  .son-header-h5-sub a {
    display: block;
    padding: 0.18rem 0.09rem 0.18rem 0.36rem;
    font-size: 0.26rem;
    line-height: 1.32;
    color: rgba(255, 255, 255, 0.85);
    border-bottom: 0.01rem dashed rgba(255, 255, 255, 0.14);
  }

  .son-header-h5-sub a:last-child {
    border-bottom: none;
  }

  .son-subnav {
    height: 1.05rem;
    position: relative;
    z-index: 4;
  }

  .son-subnav-inner {
    min-width: 0;
    max-width: none;
    height: 100%;
    padding-left: 0.45rem;
    padding-right: 0.45rem;
    gap: 0.74rem;
  }

  .son-subnav a {
    font-size: 0.24rem;
    font-weight: 700;
    line-height: 1.33;
  }

  body.son-header-menu-lock {
    overflow: hidden;
  }
  /* 隐藏所有二级导航 */
  .article-subnav,.list-subnav{
    display: none !important;
  }
}