/* 主题三色：灰湖蓝#457B9D / 琥珀金#F1A208 / 松石青#2A9D8F */
:root {
  --main: #457B9D;
  --aux: #F1A208;
  --shine: #2A9D8F;
  --dark-bg: #102533;
  --white: #ffffff;
  --gray-text: #A0B9C8;
  --light-bg: #E8F1F6;
  --trans: all 0.3s ease;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
ul { list-style: none; }
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
body {
  font-family: "Microsoft YaHei", system-ui;
  color: #172F3F;
  background: #fff;
  overflow-x: hidden;
}
.wrap16 {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 16px;
}

/* 导航 si16-header */
.si16-header {
  width: 100%;
  background: linear-gradient(90deg, #102533, #153144);
  z-index: 999;
}
.head-row16 {
  height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo-box16 h1 {
  font-size: 25px;
  font-weight: 700;
  color: var(--white);
}
.logo-box1616 {
  font-size: 25px;
  font-weight: 700;
  color: var(--white);
}
.nav-list16 {
  display: flex;
  gap: 34px;
}
.nav-list16 li a {
  color: #B4CBD9;
  font-size: 15px;
  padding: 7px 0;
  position: relative;
  transition: var(--trans);
}
.nav-list16 li.active a {
  color: var(--aux);
}
.nav-list16 li.active a::after {
  content: "";
  width: 100%;
  height: 2px;
  background: linear-gradient(var(--aux), var(--shine));
  position: absolute;
  left: 0;
  bottom: 0;
}
.nav-list16 li a:hover {
  color: var(--aux);
}

/* 首页首屏 si16-banner 超大动态光效 */
.si16-banner {
  width: 100%;
  min-height: 680px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 12% 16%, rgba(69,123,157,0.94), transparent 32%),
    radial-gradient(circle at 88% 14%, rgba(241,162,8,0.89), transparent 32%),
    radial-gradient(circle at 50% 85%, rgba(42,157,143,0.86), transparent 36%),
    linear-gradient(150deg, #102533, #153144);
}
.light-left16 {
  position: absolute;
  left: -230%;
  top: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.26), transparent);
  animation: flowL16 4.4s linear infinite;
}
.light-right16 {
  position: absolute;
  right: -230%;
  top: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(270deg, transparent, rgba(241,162,8,0.20), transparent);
  animation: flowR16 6.7s linear infinite;
}
.dot-wrap16 {
  position: absolute;
  width: 100%;
  height: 100%;
}
.dot-wrap16 span {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.79);
  animation: dotFloat16 17s linear infinite;
}
.dot-wrap16 span:nth-child(1){top:7%;left:5%;animation-delay:0s;}
.dot-wrap16 span:nth-child(2){top:34%;left:18%;animation-delay:2s;}
.dot-wrap16 span:nth-child(3){top:71%;left:8%;animation-delay:4s;}
.dot-wrap16 span:nth-child(4){top:20%;left:79%;animation-delay:6s;}
.dot-wrap16 span:nth-child(5){top:69%;left:85%;animation-delay:8s;}
.ring-main16 {
  width: 690px;
  height: 690px;
  border: 1px solid rgba(255,255,255,0.17);
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  animation: ringSpin16 28s linear infinite;
}
.ring-out16 {
  width: 830px;
  height: 830px;
  border: 1px solid rgba(42,157,143,0.12);
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  animation: ringRev16 37s linear infinite reverse;
}
.ban-text16 {
  position: relative;
  z-index: 2;
  color: var(--white);
}
.ban-bold-p16 {
  font-size: 52px;
  font-weight: 700;
  margin-bottom: 22px;
}
.ban-desc16 {
  font-size: 20px;
  line-height: 2.05;
  margin-bottom: 46px;
  opacity: 0.96;
}
.ban-btn-box16 {
  display: flex;
  gap: 28px;
}
.btn-main16 {
  padding: 18px 46px;
  background: linear-gradient(135deg, var(--aux), #FFB328);
  color: #111;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 0 38px rgba(241,162,8,0.47);
  transition: var(--trans);
}
.btn-main16:hover {
  transform: translateY(-9px) scale(1.06);
  box-shadow: 0 0 60px rgba(241,162,8,0.77);
}
.btn-line16 {
  padding: 18px 46px;
  border: 1px solid rgba(255,255,255,0.92);
  color: var(--white);
  border-radius: 999px;
  transition: var(--trans);
}
.btn-line16:hover {
  background: #fff;
  color: var(--main);
  transform: translateY(-9px) scale(1.06);
}

/* 内页通用Banner */
.inner-ban16 {
  width: 100%;
  height: 300px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 13% 21%, rgba(69,123,157,0.91), transparent 30%),
    radial-gradient(circle at 87% 15%, rgba(241,162,8,0.87), transparent 30%),
    radial-gradient(circle at 50% 79%, rgba(42,157,143,0.84), transparent 34%),
    linear-gradient(150deg, #102533, #153144);
}
.inner-ban16 .light-left16,.inner-ban16 .light-right16,.inner-ban16 .dot-wrap16,.inner-ban16 .ring-main16,.inner-ban16 .ring-out16 {
  transform: scale(0.6);
}
.inner-text16 h1 {
  font-size: 42px;
  color: var(--white);
  margin-bottom: 14px;
}
.inner-text16 p {
  font-size: 18px;
  opacity: 0.93;
  color: #fff;
}

/* 面包屑 */
.bread16 {
  padding: 30px 0;
  font-size: 14px;
  color: var(--gray-text);
}
.bread16 a {
  color: var(--main);
}

/* 二级子导航 */
.sub-nav16 {
  padding: 16px 0 38px;
}
.sub-row16 {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
}
.sub-item16 a {
  padding: 14px 30px;
  border: 1px solid #DDEBF2;
  border-radius: 10px;
  display: inline-block;
  transition: var(--trans);
}
.sub-item16.active a {
  background: linear-gradient(135deg, var(--main), #568CAF);
  color: #fff;
  border-color: var(--main);
}
.sub-badge {
  padding: 4px 11px;
  font-size: 12px;
  border-radius: 16px;
  margin-left: 9px;
}
.sub-item16.active .sub-badge {
  background: #fff;
  color: var(--main);
}
.sub-item16:not(.active) .sub-badge {
  background: var(--main);
  color: #fff;
}

/* 数据区块 si16-data */
.si16-data {
  width: 100%;
  padding: 86px 0;
  margin: 76px 0;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 9% 23%, rgba(69,123,157,0.92), transparent 32%),
    radial-gradient(circle at 91% 15%, rgba(241,162,8,0.88), transparent 32%),
    radial-gradient(circle at 50% 83%, rgba(42,157,143,0.85), transparent 36%),
    linear-gradient(150deg, #102533, #153144);
}
.si16-data .light-left16 { animation-duration:6.2s; }
.si16-data .dot-wrap16 span { background: rgba(255,255,255,0.57); }
.data-grid16 {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 38px;
  position: relative;
  z-index: 2;
  color: #fff;
  text-align: center;
}
.data-num16 {
  font-size: 52px;
  font-weight: bold;
  margin-bottom: 16px;
  animation: numBeat16 3.7s alternate infinite ease;
}
.data-desc16 {
  font-size: 19px;
  opacity: 0.95;
}

/* 区块标题 h2/h3 原样保留不修改 */
.section-tit16 {
  text-align: center;
  margin-bottom: 64px;
}
.section-tit16 h2 {
  font-size: 38px;
  margin-bottom: 18px;
}
.section-tit16 p {
  font-size: 19px;
  color: var(--gray-text);
}

/* 服务卡片 */
.service-grid16 {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 34px;
  margin-bottom: 86px;
}
.service-card16 {
  display: block;
  border: 1px solid #DDEBF2;
  border-radius: 18px;
  padding: 38px 28px;
  text-align: center;
  transition: var(--trans);
}
.service-card16:hover {
  border-color: var(--main);
  transform: translateY(-14px);
  box-shadow: 0 20px 48px rgba(69,123,157,0.18);
}
.service-icon16 {
  width: 86px;
  height: 86px;
  margin: 0 auto 28px;
}
.service-card16 h3 {
  font-size: 24px;
  margin-bottom: 18px;
}
.service-card16 p {
  font-size: 16px;
  color: var(--gray-text);
  line-height: 1.85;
}

/* 图文卡片 */
.img-grid16 {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 34px;
  margin-bottom: 56px;
}
.img-card16 {
  border: 1px solid #DDEBF2;
  border-radius: 18px;
  overflow: hidden;
  display: block;
  transition: var(--trans);
}
.img-card16:hover {
  transform: translateY(-14px);
  box-shadow: 0 20px 48px rgba(69,123,157,0.18);
}
.card-img16 {
  width: 100%;
  height: 182px;
  object-fit: cover;
}
.card-text16 {
  padding: 28px;
}
.card-text16 h3 {
  font-size: 22px;
  margin-bottom: 16px;
}
.card-text16 p {
  font-size: 16px;
  color: var(--gray-text);
  line-height: 1.75;
}
.more-box16 {
  text-align: center;
  margin-bottom: 86px;
}
.more-link16 {
  color: var(--main);
  font-size: 19px;
  font-weight: 500;
}

/* 资讯列表 */
.news-wrap16 {
  margin-bottom: 56px;
}
.news-item16 {
  display: flex;
  gap: 32px;
  padding: 32px 0;
  border-bottom: 1px solid #DDEBF2;
}
.news-pic16 {
  width: 260px;
  height: 162px;
  border-radius: 12px;
  object-fit: cover;
}
.news-text16 h2 {
  font-size: 24px;
  margin-bottom: 18px;
}
.news-time16 {
  font-size: 15px;
  color: var(--gray-text);
  margin-bottom: 18px;
}
.news-desc16 {
  font-size: 16px;
  color: var(--gray-text);
  line-height: 1.85;
}
.page-bar16 {
  display: flex;
  gap: 18px;
  justify-content: center;
  padding: 42px 0;
}
.page-bar16 a {
  padding: 14px 22px;
  border: 1px solid #DDEBF2;
  border-radius: 8px;
  font-size: 14px;
}

/* 文章详情 */
.detail-wrap16 {
  padding-bottom: 86px;
}
.detail-h16 {
  font-size: 38px;
  margin-bottom: 24px;
}
.detail-date16 {
  font-size: 17px;
  color: var(--gray-text);
  padding-bottom: 24px;
  margin-bottom: 42px;
  border-bottom: 1px solid #DDEBF2;
}
.detail-cont16 {
  font-size: 20px;
  line-height: 2.1;
  color: #172F3F;
}
.prev-next16 {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid #DDEBF2;
  display: flex;
  justify-content: space-between;
  font-size: 15px;
  color: var(--gray-text);
}

/* 通用正文 */
.cont-wrap16 {
  font-size: 20px;
  line-height: 2.1;
  color: #172F3F;
  padding-bottom: 86px;
}

/* 底部转化 si16-action h2替换加粗p */
.si16-action {
  width: 100%;
  padding: 110px 0;
  margin-top: 76px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 12% 18%, rgba(69,123,157,0.93), transparent 34%),
    radial-gradient(circle at 88% 14%, rgba(241,162,8,0.89), transparent 34%),
    radial-gradient(circle at 50% 88%, rgba(42,157,143,0.86), transparent 38%),
    linear-gradient(150deg, #102533, #153144);
}
.si16-action .light-left16 { animation-duration:4.4s; }
.si16-action .light-right16 { animation-duration:6.4s; }
.si16-action .dot-wrap16 span { background: rgba(255,255,255,0.64); }
.action-row16 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  position: relative;
  z-index: 2;
  color: #fff;
}
.action-bold-p16 {
  font-size: 42px;
  font-weight: 700;
  margin-bottom: 20px;
}
.action-desc16 {
  font-size: 20px;
  opacity: 0.96;
}
.action-btn-group16 {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
}
.action-btn16 {
  padding: 19px 48px;
  background: linear-gradient(135deg, var(--aux), #FFB328);
  color: #111;
  border-radius: 999px;
  font-weight: 500;
  box-shadow: 0 0 40px rgba(241,162,8,0.45);
  transition: var(--trans);
}
.action-btn16:hover {
  transform: translateY(-9px) scale(1.06);
  box-shadow: 0 0 62px rgba(241,162,8,0.73);
}
.action-btn26 {
  padding: 19px 48px;
  background: #fff;
  color: var(--main);
  border-radius: 999px;
  transition: var(--trans);
}
.action-btn26:hover {
  transform: translateY(-9px) scale(1.06);
  box-shadow: 0 0 48px rgba(255,255,255,0.4);
}

/* 页脚 si16-footer h4全部替换p */
.si16-footer {
  background: linear-gradient(90deg, #102533, #153144);
  color: #B4CBD9;
  padding: 80px 0 48px;
}
.foot-row16 {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 60px;
}
.foot-contact .foot-p-head {
  font-size: 22px;
  color: var(--white);
  margin-bottom: 30px;
}
.foot-contact p {
  line-height: 2.3;
  font-size: 14px;
}
.foot-link span {
  color: #fff;
  margin-right: 14px;
}
.foot-link a {
  margin-right: 20px;
  font-size: 14px;
  color: #B4CBD9;
}
.copyright16 {
  border-top: 1px solid #1A3040;
  padding-top: 32px;
  text-align: center;
  font-size: 14px;
}
.copyright16 a {
  color: var(--aux);
  margin-left: 18px;
}

/* 全局动画 */
@keyframes flowL16 {
  0% { left: -230%; }
  100% { left: 230%; }
}
@keyframes flowR16 {
  0% { right: -230%; }
  100% { right: 230%; }
}
@keyframes dotFloat16 {
  0% { transform: translate(0,0) scale(1); opacity:0; }
  20% { opacity:1; }
  80% { opacity:1; }
  100% { transform: translate(210px,-310px) scale(0); opacity:0; }
}
@keyframes ringSpin16 {
  0% { transform: translate(-50%,-50%) rotate(0deg); }
  100% { transform: translate(-50%,-50%) rotate(360deg); }
}
@keyframes ringRev16 {
  0% { transform: translate(-50%,-50%) rotate(0deg); }
  100% { transform: translate(-50%,-50%) rotate(-360deg); }
}
@keyframes numBeat16 {
  0% { transform: scale(1); }
  100% { transform: scale(1.09); }
}

/* 移动端响应式适配 */
@media screen and (max-width:1024px) {
  .data-grid16,.service-grid16,.img-grid16 { grid-template-columns: repeat(2,1fr); }
  .action-row16,.foot-row16 { flex-direction: column; text-align:center; }
  .action-btn-group16 { justify-content: center; }
  .ban-bold-p16 { font-size:42px; }
}
@media screen and (max-width:768px) {
  .head-row16 { height:auto; flex-direction:column; padding:24px 0; gap:24px; }
  .nav-list16 { flex-wrap:wrap; justify-content:center; gap:24px; }
  .si16-banner { min-height:500px; }
  .ban-bold-p16 { font-size:34px; }
  .ban-btn-box16 { flex-direction:column; }
  .btn-main16,.btn-line16 { width:100%; text-align:center; }
  .inner-ban16 { height:240px; }
  .inner-text16 h1 { font-size:32px; }
  .section-tit16 h2,.action-bold-p16 { font-size:32px; }
  .news-item16 { flex-direction:column; }
  .news-pic16 { width:100%; height:240px; }
  .detail-h16 { font-size:30px; }
  .ring-main16,.ring-out16 { width:400px; height:400px; }
}
@media screen and (max-width:480px) {
  .ban-bold-p16 { font-size:28px; }
  .data-grid16,.service-grid16,.img-grid16 { grid-template-columns:1fr; }
  .data-num16 { font-size:40px; }
  .sub-row16 { gap:14px; }
  .sub-item16 a { padding:10px 20px; font-size:13px; }
  .si16-action { padding:78px 0; }
  .action-btn16,.action-btn26 { width:100%; text-align:center; }
  .page-bar16 { flex-wrap:wrap; }
}