/* ========== 全局三色拼主题变量 ========== */
:root {
  --main: #7B2CFF;      /* 主色：紫 */
  --aux: #FF6A00;       /* 辅助色：橙 */
  --accent: #00D9FF;    /* 点缀色：青 */
  --white: #ffffff;
  --dark: #1A103C;
  --gray: #7D869C;
  --light-bg: #F7F9FC;
  --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", sans-serif;
  color: var(--dark);
  background: #fff;
  overflow-x: hidden;
}

.box {
  width: 100%;
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ========== 顶部导航 ========== */
.top-bar {
  width: 100%;
  background: linear-gradient(90deg, #1A103C, #2E1663);
  position: relative;
  z-index: 999;
}

.top-row {
  height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-txt {
  font-size: 24px;
  font-weight: bold;
  color: var(--white);
}

.nav-list {
  display: flex;
  gap: 34px;
}

.nav-item a {
  color: #B8C2D8;
  font-size: 15px;
  padding: 7px 0;
  position: relative;
  transition: var(--trans);
}

.nav-item.active a {
  color: var(--aux);
}

.nav-item.active a::after {
  content: "";
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--aux), var(--accent));
  position: absolute;
  left: 0;
  bottom: 0;
}

.nav-item a:hover {
  color: var(--aux);
}

/* ========== 首页首屏Banner 三色拼光效 ========== */
.banner-main {
  width: 100%;
  min-height: 660px;
  background:
    radial-gradient(circle at 10% 20%, rgba(123, 44, 255, 0.95), transparent 28%),
    radial-gradient(circle at 90% 10%, rgba(255, 106, 0, 0.9), transparent 28%),
    radial-gradient(circle at 50% 85%, rgba(0, 217, 255, 0.9), transparent 32%),
    linear-gradient(150deg, #2E1663, #1A103C);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.light-left {
  position: absolute;
  top: 0;
  left: -180%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.22), transparent);
  animation: flowLeft 5.5s linear infinite;
}

.light-right {
  position: absolute;
  top: 0;
  right: -180%;
  width: 100%;
  height: 100%;
  background: linear-gradient(270deg, transparent, rgba(255, 106, 0, 0.18), transparent);
  animation: flowRight 7.5s linear infinite;
}

.dot-group span {
  position: absolute;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255,255,255,0.75);
  animation: dotFloat 15s infinite linear;
}

.dot-group span:nth-child(1) { top:10%; left:6%; animation-delay:0s; }
.dot-group span:nth-child(2) { top:38%; left:20%; animation-delay:1.8s; }
.dot-group span:nth-child(3) { top:72%; left:11%; animation-delay:3.6s; }
.dot-group span:nth-child(4) { top:20%; left:78%; animation-delay:5.4s; }
.dot-group span:nth-child(5) { top:68%; left:84%; animation-delay:7.2s; }

.ring-big {
  width: 650px;
  height: 650px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  animation: ringRotate 26s linear infinite;
}

.banner-wrap {
  position: relative;
  z-index: 2;
  color: var(--white);
}

.banner-title {
  font-size: 50px;
  margin-bottom: 20px;
}

.banner-desc {
  font-size: 20px;
  line-height: 2;
  margin-bottom: 42px;
  opacity: 0.95;
}

.banner-btn-box {
  display: flex;
  gap: 24px;
}

.btn-solid {
  padding: 16px 42px;
  background: linear-gradient(135deg, var(--aux), #FF8E53);
  color: #fff;
  border-radius: 999px;
  font-weight: 500;
  box-shadow: 0 0 32px rgba(255, 106, 0, 0.48);
  transition: var(--trans);
}

.btn-solid:hover {
  transform: translateY(-7px) scale(1.04);
  box-shadow: 0 0 50px rgba(255, 106, 0, 0.72);
}

.btn-line {
  padding: 16px 42px;
  border: 1px solid rgba(255,255,255,0.85);
  color: #fff;
  border-radius: 999px;
  transition: var(--trans);
}

.btn-line:hover {
  background: #fff;
  color: var(--main);
  transform: translateY(-7px) scale(1.04);
}

/* ========== 内页通用Banner ========== */
.banner-inner {
  width: 100%;
  height: 290px;
  background:
    radial-gradient(circle at 15% 25%, rgba(123, 44, 255, 0.9), transparent 26%),
    radial-gradient(circle at 85% 15%, rgba(255, 106, 0, 0.85), transparent 26%),
    radial-gradient(circle at 50% 75%, rgba(0, 217, 255, 0.85), transparent 30%),
    linear-gradient(150deg, #2E1663, #1A103C);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.banner-inner .light-left,
.banner-inner .light-right,
.banner-inner .dot-group,
.banner-inner .ring-big {
  transform: scale(0.62);
}

.banner-inner-text {
  position: relative;
  z-index: 2;
  color: var(--white);
}

.banner-inner-text h1 {
  font-size: 40px;
  margin-bottom: 12px;
}

.banner-inner-text p {
  font-size: 17px;
  opacity: 0.9;
}

/* ========== 面包屑导航 ========== */
.crumb {
  padding: 28px 0;
  font-size: 14px;
  color: var(--gray);
}

.crumb a {
  color: var(--main);
}

/* ========== 二级子菜单 ========== */
.sub-nav {
  padding: 14px 0 34px;
}

.sub-row {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.sub-item a {
  padding: 12px 26px;
  border: 1px solid #E1E7F5;
  border-radius: 8px;
  display: inline-block;
  transition: var(--trans);
}

.sub-item.active a {
  background: linear-gradient(135deg, var(--main), #9D5CFF);
  color: #fff;
  border-color: var(--main);
}

.sub-badge {
  padding: 3px 10px;
  font-size: 12px;
  border-radius: 14px;
  margin-left: 8px;
  display: inline-block;
}

.sub-item.active .sub-badge {
  background: #fff;
  color: var(--main);
}

.sub-item:not(.active) .sub-badge {
  background: var(--main);
  color: #fff;
}

/* ========== 数据统计区块 三色动态 ========== */
.data-area {
  width: 100%;
  padding: 80px 0;
  background:
    radial-gradient(circle at 8% 20%, rgba(123, 44, 255, 0.9), transparent 28%),
    radial-gradient(circle at 92% 12%, rgba(255, 106, 0, 0.85), transparent 28%),
    radial-gradient(circle at 50% 80%, rgba(0, 217, 255, 0.85), transparent 32%),
    linear-gradient(150deg, #1A103C, #2E1663);
  position: relative;
  overflow: hidden;
  margin: 70px 0;
}

.data-area .light-left { animation-duration:6.2s; }
.data-area .dot-group span { background: rgba(255,255,255,0.52); }

.data-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 34px;
  position: relative;
  z-index: 2;
  color: #fff;
  text-align: center;
}

.data-num {
  font-size: 48px;
  font-weight: bold;
  margin-bottom: 14px;
  animation: numPulse 3.5s ease infinite alternate;
}

.data-desc {
  font-size: 18px;
  opacity: 0.93;
}

/* ========== 通用区块标题 ========== */
.head-title {
  text-align: center;
  margin-bottom: 58px;
}

.head-title h2 {
  font-size: 36px;
  margin-bottom: 14px;
  color: var(--dark);
}

.head-title p {
  font-size: 18px;
  color: var(--gray);
}

/* ========== 服务卡片 ========== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 30px;
  margin-bottom: 80px;
}

.service-card {
  display: block;
  padding: 34px 24px;
  border: 1px solid #E1E7F5;
  border-radius: 14px;
  text-align: center;
  transition: var(--trans);
}

.service-card:hover {
  border-color: var(--main);
  transform: translateY(-10px);
  box-shadow: 0 16px 40px rgba(123, 44, 255, 0.15);
}

.service-ico {
  width: 78px;
  height: 78px;
  margin: 0 auto 24px;
}

.service-card h3 {
  font-size: 22px;
  margin-bottom: 14px;
}

.service-card p {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.8;
}

/* ========== 图文卡片 ========== */
.img-card-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 30px;
  margin-bottom: 48px;
}

.img-card {
  border: 1px solid #E1E7F5;
  border-radius: 14px;
  overflow: hidden;
  display: block;
  transition: var(--trans);
}

.img-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 16px 40px rgba(123, 44, 255, 0.15);
}

.card-img-box {
  width: 100%;
  height: 170px;
  object-fit: cover;
}

.card-text-box {
  padding: 24px;
}

.card-text-box h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.card-text-box p {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.7;
}

.more-center {
  text-align: center;
  margin-bottom: 80px;
}

.more-link {
  color: var(--main);
  font-size: 17px;
  font-weight: 500;
}

/* ========== 资讯列表 ========== */
.news-container {
  margin-bottom: 48px;
}

.news-item {
  display: flex;
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid #E1E7F5;
}

.news-pic {
  width: 240px;
  height: 150px;
  border-radius: 8px;
  object-fit: cover;
}

.news-text h2 {
  font-size: 22px;
  margin-bottom: 14px;
}

.news-time {
  font-size: 14px;
  color: var(--gray);
  margin-bottom: 14px;
}

.news-intro {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.8;
}

.page-page {
  display: flex;
  gap: 14px;
  justify-content: center;
  padding: 34px 0;
}

.page-page a {
  padding: 10px 18px;
  border: 1px solid #E1E7F5;
  border-radius: 6px;
  font-size: 14px;
}

/* ========== 资讯详情页 ========== */
.detail-area {
  padding-bottom: 80px;
}

.detail-title {
  font-size: 34px;
  margin-bottom: 20px;
}

.detail-date {
  font-size: 15px;
  color: var(--gray);
  padding-bottom: 20px;
  margin-bottom: 34px;
  border-bottom: 1px solid #E1E7F5;
}

.detail-content {
  font-size: 18px;
  line-height: 2;
  color: #222;
}

.prev-next-box {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid #E1E7F5;
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: var(--gray);
}

/* ========== 通用内容盒子 ========== */
.content-main {
  font-size: 18px;
  line-height: 2;
  color: #222;
  padding-bottom: 80px;
}

/* ========== 底部转化区块 三色拼光效 ========== */
.action-footer {
  width: 100%;
  padding: 100px 0;
  background:
    radial-gradient(circle at 12% 18%, rgba(123, 44, 255, 0.95), transparent 30%),
    radial-gradient(circle at 88% 10%, rgba(255, 106, 0, 0.9), transparent 30%),
    radial-gradient(circle at 50% 85%, rgba(0, 217, 255, 0.9), transparent 35%),
    linear-gradient(150deg, #1A103C, #2E1663);
  position: relative;
  overflow: hidden;
  margin-top: 70px;
}

.action-footer .light-left { animation-duration:5s; }
.action-footer .light-right { animation-duration:7s; }
.action-footer .dot-group span { background: rgba(255,255,255,0.6); }

.action-row-box {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  color: #fff;
}

.action-text h2 {
  font-size: 38px;
  margin-bottom: 16px;
}

.action-text p {
  font-size: 19px;
  opacity: 0.94;
}

.action-btn-group {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}

.action-btn1 {
  padding: 17px 44px;
  background: linear-gradient(135deg, var(--aux), #FF8E53);
  color: #fff;
  border-radius: 999px;
  font-weight: 500;
  box-shadow: 0 0 36px rgba(255, 106, 0, 0.45);
  transition: var(--trans);
}

.action-btn1:hover {
  transform: translateY(-7px) scale(1.04);
  box-shadow: 0 0 52px rgba(255, 106, 0, 0.7);
}

.action-btn2 {
  padding: 17px 44px;
  background: #fff;
  color: var(--main);
  border-radius: 999px;
  font-weight: 500;
  transition: var(--trans);
}

.action-btn2:hover {
  transform: translateY(-7px) scale(1.04);
  box-shadow: 0 0 40px rgba(255,255,255,0.35);
}

/* ========== 页脚区域 ========== */
.footer-wrap {
  background: linear-gradient(90deg, #1A103C, #2E1663);
  color: #B8C2D8;
  padding: 70px 0 40px;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-contact h4 {
  font-size: 20px;
  color: #fff;
  margin-bottom: 24px;
}

.footer-contact p {
  line-height: 2.1;
  font-size: 14px;
}

.footer-link span {
  color: #fff;
  margin-right: 10px;
}

.footer-link a {
  margin-right: 16px;
  font-size: 14px;
  color: #B8C2D8;
}

.copyright-text {
  border-top: 1px solid #312252;
  padding-top: 24px;
  text-align: center;
  font-size: 14px;
}

.copyright-text a {
  color: var(--aux);
  margin-left: 14px;
}

/* ========== 全局动画关键帧 ========== */
@keyframes flowLeft {
  0% { left: -180%; }
  100% { left: 180%; }
}

@keyframes flowRight {
  0% { right: -180%; }
  100% { right: 180%; }
}

@keyframes dotFloat {
  0% { transform: translate(0,0) scale(1); opacity: 0; }
  20% { opacity: 1; }
  80% { opacity: 1; }
  100% { transform: translate(180px,-240px) scale(0); opacity: 0; }
}

@keyframes ringRotate {
  0% { transform: translate(-50%,-50%) rotate(0deg); }
  100% { transform: translate(-50%,-50%) rotate(360deg); }
}

@keyframes numPulse {
  0% { transform: scale(1); }
  100% { transform: scale(1.09); }
}

/* ========== 移动端完整响应式 ========== */
@media screen and (max-width:1024px) {
  .banner-title { font-size: 40px; }
  .data-row { grid-template-columns: repeat(2,1fr); }
  .service-grid,.img-card-grid { grid-template-columns: repeat(2,1fr); }
  .action-row-box { flex-direction: column; text-align: center; }
  .action-btn-group { justify-content: center; }
  .footer-row { flex-direction: column; }
}

@media screen and (max-width:768px) {
  .top-row { height: auto; flex-direction: column; padding: 20px 0; gap: 20px; }
  .nav-list { flex-wrap: wrap; justify-content: center; gap: 20px; }
  .banner-main { min-height: 460px; }
  .banner-title { font-size: 32px; }
  .banner-desc { font-size: 16px; }
  .banner-btn-box { flex-direction: column; }
  .btn-solid,.btn-line { width: 100%; text-align: center; }
  .banner-inner { height: 220px; }
  .banner-inner-text h1 { font-size: 30px; }
  .head-title h2 { font-size: 30px; }
  .action-text h2 { font-size: 30px; }
  .news-item { flex-direction: column; }
  .news-pic { width: 100%; height: 220px; }
  .detail-title { font-size: 28px; }
  .ring-big { width: 340px; height: 340px; }
}

@media screen and (max-width:480px) {
  .banner-title { font-size: 26px; }
  .data-row { grid-template-columns: 1fr; }
  .service-grid,.img-card-grid { grid-template-columns: 1fr; }
  .data-num { font-size: 36px; }
  .sub-row { gap: 12px; }
  .sub-item a { padding: 10px 18px; font-size: 13px; }
  .action-footer { padding: 70px 0; }
  .action-btn1,.action-btn2 { width: 100%; text-align: center; }
  .page-page { flex-wrap: wrap; }
}