/* 通用重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Microsoft Yahei", sans-serif;
  color: #333;
  line-height: 1.6;
  min-width: 1200px;
}

a {
  text-decoration: none;
  color: inherit;
}

.clearfix:after {
  content: "";
  display: table;
  clear: both;
}

.container {
  width: 1200px;
  margin: 0 auto;
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  width: 1200px;
  margin: auto;
}

/* 按钮样式 */
.btn-primary {
  display: inline-block;
  background: #007bff;
  color: #fff;
  padding: 12px 30px;
  border-radius: 4px;
  text-align: center;
  font-size: 16px;
  cursor: pointer;
  border: none;
}

.btn-primary:hover {
  background: #0056b3;
}

.btn-secondary {
  display: inline-block;
  background: #fff;
  color: #007bff;
  padding: 10px 25px;
  border-radius: 4px;
  text-align: center;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid #007bff;
}

.btn-secondary:hover {
  background: #f0f7ff;
}

/* 导航栏样式 */
.header {
  border-bottom: 1px solid #eee;
}

.header-inner {
  width: 1200px;
  margin: 0 auto;
  padding: 15px 0;
}

.logo {
  float: left;
  font-size: 24px;
  color: #007bff;
  line-height: 36px;
}

.nav {
  float: right;
}

.nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav ul li {
  float: left;
  margin-left: 20px;
}

.nav-link {
  display: block;
  padding: 8px 16px;
  border-radius: 4px;
  transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
  background-color: #007bff;
  color: #fff;
}

.clearfix:after {
  content: "";
  display: table;
  clear: both;
}


/* 页脚样式 */
.footer {
  background: #2b2d42;
  color: #fff;
  padding: 40px 0;
}

.footer-inner {
  width: 1200px;
  margin: 0 auto;
}

.footer-col {
  float: left;
  width: 25%;
  padding: 0 15px;
}

.footer-col h4 {
  font-size: 18px;
  margin-bottom: 15px;
  color: #fff;
}

.footer-col p {
  margin-bottom: 10px;
  color: #ccc;
}

.social-icons {
  margin-bottom: 20px;
}

.social-icons img {
  width: 24px;
  height: 24px;
  margin-right: 10px;
}

.privacy-link {
  color: #007bff;
  text-decoration: underline;
}

.copyright,
.other-information {
  text-align: center;
  color: #ccc;
  font-size: 14px;
}



/* 首页内容 */
/* 横幅区 */
.banner {
  padding: 50px 20px;
  background: linear-gradient(to right, #7ec1ee, #afcdef);
}

.banner-content {
  float: left;
  width: 60%;
  padding-right: 5%;
  margin-top: 50px;
  color: #fff;
}

.banner-content h1 {
  font-size: 42px;
  margin-bottom: 15px;
}

.banner-btns {
  margin-top: 30px;
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 4px;
  margin-right: 10px;
}

.btn-primary {
  width: 150px;
  background: #007bff;
  color: #fff;
}

.btn-outline {
  width: 150px;
  color: #007bff;
  background: #fff;
}

.btn-outline:hover {
  text-decoration: underline;
}

.banner-img {
  float: right;
  width: 40%;
  text-align: right;
}

.banner-img img {
  max-width: 100%;
}

.common-title {
  text-align: center;
}

.common-title h2 {
  margin-bottom: 15px;
  font-size: 30px;
}

.common-title p {
  font-size: 16px;
}

/* 核心优势 */
.core-advantages {
  padding: 50px 20px;
  text-align: center;
  background-color: #f9fafb;
}

.advantages-list {
  margin-top: 30px;
}

.advantage-item {
  float: left;
  width: 30.33%;
  padding: 40px 30px;
  border-radius: 4px;
  height: 240px;
  text-align: left;
  background: #fff;
}

.advantage-item:nth-child(2) {
  margin: 0 4.5%;
}

.advantage-item h3 {
  font-size: 20px;
}

.advantage-item p {
  font-size: 16px;
}

.advantage-item img {
  max-width: 60px;
  margin-bottom: 15px;
}

/* 行业解决方案 */
.industry-solutions {
  padding: 50px 20px;
  text-align: center;
  background: #fff;
}

.solutions-list {
  margin-top: 30px;
}

.solution-item {
  float: left;
  width: 33.33%;
  padding: 0 20px;
  text-align: left;
  margin-top: 20px;
}

.solution-item h3 {
  font-size: 20px;
}

.solution-item p {
  margin: 15px 0;
  font-size: 16px;
}

.solution-item a {
  font-size: 16px;
  color: #2563EB;
}

.solution-item a:hover {
  text-decoration: underline;
}

.solution-item img {
  max-width: 100%;
  margin-bottom: 15px;
}

/* 成功案例 */
.success-cases {
  padding: 50px 20px;
  text-align: center;
  background: linear-gradient(#e2eefe, #fcfdff);
}

.cases-list {
  margin-top: 30px;
}

.case-item {
  float: left;
  width: 23%;
  height: 235px;
  padding: 20px;
  text-align: left;
  margin-top: 20px;
  background: #fff;
  border-radius: 5px;
}

.case-item:nth-child(2),
.case-item:nth-child(3) {
  margin: 20px 2%;
}

.case-item h4 {
  font-size: 16px;
}

.case-item p {
  font-size: 16px;
}

.case-item p {
  margin: 10px 0;
  font-size: 14px;
}

.case-item a {
  font-size: 14px;
  color: #2563EB;
}

.case-item a:hover {
  text-decoration: underline;
}

/* 合作伙伴 */
.partners {
  padding: 50px 20px;
  text-align: center;
  background: #fff;
}

.partners-list {
  margin-top: 30px;
}

.partners-list img {
  float: left;
  width: 16.66%;
  padding: 0 10px;
  margin-bottom: 20px;
}

/* 行动号召 */
.cta {
  padding: 20px 0 0;
  text-align: center;
  background: linear-gradient(to right, #9a96f0, #b438e2);
  color: #fff;
}

.cta h2 {
  font-size: 28px;
  margin-bottom: 15px;
}

.cta .btn {
  margin-top: 20px;
  background: #fff;
  color: #007bff;
}

.cta-content {
  float: left;
  margin-left: 12%;
  margin-top: 100px;
  text-align: left;
}

.cta-content h2 {
  font-size: 30px;
  color: #fff;
}

.cta-content p {
  font-size: 36px;
  color: #FF8E3E;
}

.cta-content .btn {
  display: inline-block;
  width: 400px;
  text-align: center;
  font-size: 16px;
  color: #000;
  background: #fff;
}

.cta-content .btn:hover {
  text-decoration: underline;
}

.cta-img {
  float: right;
}





/* 关于我们 */
/* banner区 */
.about-banner {
  background: #4c8be5 url('../images/banner-about.png') no-repeat center/cover;
  padding: 60px 0;
  text-align: center;
  color: #fff;
}

.about-banner h1 {
  font-size: 36px;
  margin-bottom: 20px;
}

/* 公司介绍区 */
.about-intro {
  padding: 50px 0;
}

.intro-img {
  float: left;
  width: 50%;
  padding-top: 30px;
  padding-right: 30px;
}

.intro-img img {
  width: 100%;
  display: block;
}

.intro-text {
  float: left;
  width: 50%;
}

.intro-text h2 {
  font-size: 30px;
  margin-bottom: 20px;
}

.intro-text p {
  font-size: 16px;
}

.stats {
  margin-top: 30px;
}

.stat-box {
  float: left;
  width: 48%;
  margin: 0 auto 18px;
  height: 110px;
  text-align: center;
  padding: 0 15px;
  border-radius: 5px;
  background: #eff6ff;
}

.stat-box:nth-child(2),
.stat-box:nth-child(4) {
  float: right;
}

.stat-box span {
  font-size: 36px;
  color: #007bff;
  display: block;
  margin-bottom: 10px;
}

/* 技术实力区 */
.tech-strength {
  background: #f9fafb;
  padding: 50px 0;
}

.common-title2 {
  text-align: center;
  font-size: 30px;
  margin-bottom: 35px;
}

.strength-item {
  float: left;
  width: 30.33%;
  height: 220px;
  padding: 30px;
  background: #fff;
}

.strength-item:nth-child(2) {
  margin: 0 4.5%;
}

.strength-item h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.strength-item h3 img {
  margin-right: 10px;
  vertical-align: middle;
}

.strength-item ul {
  list-style: none;
  font-size: 16px;
  line-height: 2.2;
  color: #4B5563;
}

.strength-item ul li {
  background: url('../images/ico-ab-right.png') no-repeat center left;
}

.strength-item ul li {
  padding-left: 20px;
}

/* 发展历程区 */
.development {
  padding: 50px 0;
}

.development ul {
  list-style: none;
  border-left: solid 1px #e5e7eb;
}

.development li {
  margin-bottom: 20px;
  padding-left: 35px;
  position: relative;
}

.development li::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 28px;
  width: 8px;
  height: 8px;
  background: #007bff;
  border-radius: 50%;
}

.development li span {
  font-weight: bold;
  font-size: 20px;
  display: block;
}

.development li p {
  font-size: 16px;
}

/* 企业文化区 */
.corporate-culture {
  background: #f8f9fa;
  padding: 50px 0;
}

.corporate-culture h2 {
  text-align: center;
  font-size: 28px;
  margin-bottom: 30px;
}

.culture-item {
  float: left;
  width: 23%;
  height: 240px;
  border-radius: 5px;
  text-align: center;
  padding: 30px 15px;
  background: #fff;
}

.culture-item:nth-child(2) {
  margin-left: 2.5%;
  margin-right: 1.5%;
}

.culture-item:nth-child(3) {
  margin-left: 1.5%;
  margin-right: 2.5%;
}

.culture-item h3 {
  font-size: 20px;
  margin: 10px 0;
}

.culture-item p {
  font-size: 16px;
  color: #4B5563;
}

/* 团队风采区 */
.team-show {
  padding: 50px 0;
}

.show-item {
  float: left;
  width: 33.33%;
  padding: 0 10px;
  text-align: left;
}

.show-item h3 {
  font-size: 20px;
}

.show-item p {
  font-size: 16px;
}

.show-item img {
  width: 100%;
  display: block;
  margin-bottom: 10px;
  border-radius: 5px;
}





/* 产品服务 */
/* 英雄横幅 */
.hero-banner {
  background: url('../images/banner-ps.png') no-repeat center/cover;
  padding: 60px 0;
  /* text-align: center; */
}

.hero-banner h1 {
  font-size: 36px;
  margin-bottom: 20px;
  color: #333;
}

.hero-banner p {
  color: #666;
}

/* 核心产品 */
.product-section {
  padding: 50px 0;
}

.product-card {
  float: left;
  width: 30.33%;
  padding: 25px 15px;
  margin-bottom: 30px;
  border-radius: 5px;
  box-shadow: 2px 2px 2px #e0e0e0;
}

.product-card:nth-child(2) {
  margin: 0 4.5% 30px;
}

.product-card img {
  width: 100%;
  margin-bottom: 15px;
}

.product-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.product-card ul {
  list-style: none;
  margin-top: 10px;
}

.product-card li {
  margin: 5px 0;
  padding-left: 20px;
  background: url('../images/icon-ps-right.png') no-repeat center left;
  color: #666;
}

/* 技术架构 */
.tech-arch-section {
  padding: 50px 0;
  background: #f9fafb;
}

.arch-img {
  float: left;
  width: 50%;
  padding-right: 30px;
}

.arch-img img {
  width: 100%;
  display: block;
}

.arch-details {
  float: left;
  width: 50%;
}

.arch-item {
  margin-bottom: 20px;
}

.arch-item h3 {
  font-size: 20px;
  color: #111827;
  margin-bottom: 10px;
}

.arch-item p {
  font-size: 16px;
  color: #666;
}

/* 成功案例 */
.case-section {
  padding: 50px 0;
}

.case-section .case-card {
  float: left;
  width: 30.33%;
  padding: 25px 0;
  margin-bottom: 30px;
  border-radius: 5px;
  box-shadow: 2px 2px 2px #e0e0e0;
}

.case-section .case-card:nth-child(2) {
  margin: 0 4.5% 30px;
}

.case-section .case-card img {
  width: 100%;
  margin-bottom: 15px;
}

.case-section .case-card p {
  margin: 10px 0 20px;
}

.case-section .case-card .industry span {
  font-size: 16px;
  color: #6B7280;
}

.case-section .case-card .industry a {
  float: right;
  font-size: 16px;
  color: #2563EB;
}

/* 项目流程 */
.process-section {
  padding: 50px 0;
  background: #f9fafb;
}

.process-step {
  float: left;
  width: 20%;
  text-align: center;
}

.process-step .icon {
  font-size: 36px;
  color: #007bff;
  margin-bottom: 10px;
}

.process-step h4 {
  margin-bottom: 5px;
  font-size: 18px;
}

.process-step p {
  color: #666;
  font-size: 14px;
}

/* 咨询模块 */
.cta-section {
  color: #fff;
  padding: 50px 0;
  text-align: center;
}

.cta-section h2 {
  font-size: 30px;
}

.cta-section p {
  margin: 35px 0;
  font-size: 18px;
}

.cta-section .btn {
  display: inline-block;
  padding: 10px 30px;
  background: #fff;
  color: #007bff;
  text-decoration: none;
  border-radius: 5px;
  transition: all 0.3s;
}

.cta-section .btn:hover {
  text-decoration: underline;
}





/* 解决方案 */
/* banner部分 */
.solutions-banner {
  background: url('../images/banner-solu.png') no-repeat center/cover;
  padding: 60px 0;
}

.solutions-banner h1 {
  font-size: 32px;
  margin-bottom: 15px;
}

.solutions-banner p {
  color: #666;
  margin-bottom: 20px;
}

.solutions-banner .btn {
  display: inline-block;
  padding: 10px 20px;
  background: #2563eb;
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.3s;
}

.solutions-banner .btn:hover {
  opacity: 0.8;
}

/* 行业解决方案 */
.industry-section {
  padding: 50px 0;
  background: #f9fafb;
}

.industry-card {
  float: left;
  width: 30.33%;
  margin-bottom: 30px;
  border-radius: 5px;
  background: #fff;
}

.industry-card:nth-child(2) {
  margin: 0 4.5% 30px;
}

.industry-card img {
  width: 100%;
  margin-bottom: 15px;
}

.industry-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.industry-card ul {
  list-style: none;
  color: #666;
}

.industry-card li {
  padding-left: 20px;
  margin: 5px 0;
  background: url('../images/icon-ps-right.png') no-repeat center left;
}

/* 成功案例 */
.case-section2 {
  padding: 50px 0;
}

.case-row {
  margin-bottom: 30px;
  clear: both;
}

.case-item1 {
  float: left;
  width: 50%;
  padding: 0 30px;
}

.case-item1 .industry-tag {
  float: right;
  padding: 5px 12px;
  font-size: 14px;
  border-radius: 20px;
  color: #2563EB;
  background: #DBEAFE;

}

.case-item1 h3 {
  float: left;
  font-size: 18px;
  margin-bottom: 10px;
}

.case-item1 p {
  color: #666;
  margin-bottom: 10px;
}

.case-item1 .stats {
  color: #666;
  margin-bottom: 15px;
}

.case-item1 .stats span {
  margin-right: 15px;
}

.case-item1 .stats span img {
  margin-right: 5px;
  vertical-align: middle;
}

.case-item1 .btn {
  float: right;
  /* display: inline-block; */
  padding: 6px 15px;
  border: 1px solid #007bff;
  color: #007bff;
  text-decoration: none;
  border-radius: 4px;
  transition: all 0.3s;
}

.case-item1 .btn:hover {
  text-decoration: underline;
}

/* 核心优势 */
.advantage-item1 {
  width: 22% !important;
  padding: 15px !important;
  height: 200px !important;
}

.advantage-item1:nth-child(2) {
  margin-left: 4%;
  margin-right: 2%;
}

.advantage-item1:nth-child(3) {
  margin-left: 2%;
  margin-right: 4%;
}

/* 咨询模块 */
.cta-section .container {
  background: #2563EB;
  border-radius: 5px;
  padding: 50px 5%;
}

.cta-section1 .cta-section-left {
  float: left;
  text-align: left;
}

.cta-section1 .cta-section-left p {
  margin: 15px 0 0;
}

.cta-section1 .btn-cta {
  float: right;
  margin-top: 15px;
  padding: 10px 20px;
}







/* 客户案例1 */
/* Banner区 */
.cases-banner {
  background: url('../images/banner-cases.png') no-repeat center/cover;
  padding: 60px 0;
  color: #fff;
}

.cases-banner h1 {
  font-size: 36px;
  margin-bottom: 10px;
}

.cases-banner p {
  margin-bottom: 20px;
}

.cases-banner .btn-list {
  height: 48px;
  color: #fff;
}

.cases-banner .btn-list span {
  float: left;
  padding: 8px 20px;
  margin-right: 15px;
  border-radius: 5px;
  background: #6a9ad0;
}

.stats-section {
  padding: 40px 0;
}

.stats-section .stat-box {
  float: left;
  width: 23%;
  margin: 0 1%;
  padding: 20px 0 !important;
  height: 130px !important;
  text-align: center;
  padding: 0 15px;
  background: #f9fafb;
}

.stats-section .stat-box span {
  font-size: 32px;
  font-weight: bold;
  display: block;
  color: #007bff;
}

/* 客户背景 & 解决方案（两列布局） */
.customer-section {
  padding: 50px 0;
}

.customer-col {
  float: left;
  width: 50%;
  padding: 0 15px;
}

.customer-col-right {
  padding-left: 5%;
}

.customer-col h2 {
  font-size: 24px;
  margin-bottom: 15px;

}

.customer-col ul {
  list-style: none;
}

.customer-col li {
  line-height: 2;
  font-size: 16px;
  padding-left: 30px;
  background: url('../images/ico-c1-right.png') no-repeat left center;
}

.customer-col p {
  margin-bottom: 20px;
  font-size: 16px;
}

/* 实施效果区 */
.effect-section {
  padding: 50px 0;
}

.effect-section img {
  max-width: 100%;
  margin-bottom: 30px;
}


/* 相关案例（三列布局） */
.case-section h1 {
  margin-bottom: 30px;
  font-size: 24px;
}

.case-section h3 {
  margin: 15px 0;
}





/* 客户案例 */
/* 英雄区域 */
.cases-banner1 {
  padding: 40px 0;
  text-align: center;
}

.cases-banner1 h1 {
  font-size: 36px;
  margin-bottom: 20px;
}

.cases-banner1 p {
  color: #666;
  max-width: 800px;
  margin: 0 auto;
}

/* 案例筛选标签 */
.filter-tags {
  margin: 40px 0;
  font-size: 16px;
}

.filter-tags button {
  background: #f8f9fa;
  border: none;
  padding: 10px 20px;
  margin: 0 5px;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.3s;
}

.filter-tags button.active {
  background: #2563eb;
  color: #fff;
}

/* 案例列表 */
.cases-list {
  margin-bottom: 40px;
}

.cases-item {
  display: inline-block;
  width: 31.33%;
  margin: 0 1% 30px;
  border-radius: 5px;
  background: #fff;
}

.cases-item .show {
  display: block;
}

.cases-item>img {
  width: 100%;
  margin-bottom: 15px;
}

.cases-item h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.cases-item p {
  margin-bottom: 10px;
  color: #4B5563;
}

.cases-item .tags {
  display: inline-block;
  text-align: center;
  border-radius: 5px;
  padding: 2px 10px;
  margin: 0 0 10px;
  font-size: 14px;
  color: #007bff;
  background: #eff6ff;
}

.cases-item img {
  margin-right: 6px;
  vertical-align: middle;
}

.cases-item a {
  float: right;
  margin-top: 5px;
  color: #2563EB;
}

/* 加载更多按钮 */
.load-more {
  text-align: center;
  margin: 20px 0;
}

.load-more button {
  width: 145px;
  margin: auto;
  font-size: 16px;
  line-height: 48px;
  background: #2563eb;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s;
}

.load-more button:hover {
  background: #0056b3;
}







/* 技术支持 */
/* Banner区 */
.tech-banner {
  background: url('../images/banner-tech.png') no-repeat center/cover;
  padding: 60px 0;
}

.tech-banner .content {
  max-width: 800px;
}

.tech-banner h1 {
  font-size: 32px;
  margin-bottom: 15px;
}

.tech-banner p {
  color: #666;
  margin-bottom: 20px;
}

.banntech-bannerer .btn-group {
  margin-top: 20px;
}

.tech-banner .btn1 {
  display: inline-block;
  padding: 10px 20px;
  margin-right: 10px;
  text-decoration: none;
  border-radius: 4px;
  transition: all 0.3s;
}

.tech-banner .btn1:hover {
  text-decoration: underline;
}

.tech-banner .contact-btn {
  background: #007bff;
  color: #fff;
}

.tech-banner .doc-btn {
  background: #fff;
  color: #007bff;
  border: 1px solid #007bff;
}

/* 快速支持卡片 */
.support-cards {
  padding: 50px 0;
}

.support-cards h2 {
  font-size: 30px;
  margin-bottom: 30px;
}


/* 版本更新 */
.version-update {
  padding: 50px 0;
  background: #f8f9fa;
}

.version-update h2 {
  text-align: center;
  font-size: 28px;
  margin-bottom: 30px;
}

.version-item {
  border: 1px solid #eee;
  border-radius: 4px;
  padding: 20px;
  margin-bottom: 20px;
}

.version-item .version-header {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 10px;
}

.version-item .date {
  color: #999;
  font-size: 14px;
  margin-bottom: 15px;
}

.version-item ul {
  list-style: disc;
  margin-left: 20px;
  color: #666;
  margin-bottom: 15px;
}

.version-item .btn {
  float: right;
  border-radius: 20px;
  text-decoration: none;
  color: #007bff;
  font-size: 14px;
  background: #eff6ff;
}

.version-tips {
  margin: 30px 0;
  line-height: 54px;
  border-left: solid 5px #2563eb;
  color: #2563EB;
  background-color: #eff6ff;
}

.version-tips span {
  padding: 0 20px;
  color: #2563EB;
}

/* 常见问题 */
.faq-section {
  padding: 50px 0;
}

.faq-section h2 {
  text-align: center;
  font-size: 28px;
  margin-bottom: 30px;
}

.faq-card {
  float: left;
  width: 45%;
  margin: 0 2.5% 30px;
  padding: 20px 15px;
  background: #f9fafb;
}

.faq-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
  color: #333;
}

.faq-card p {
  font-size: 16px;
  color: #4B5563;
}

/* 帮助模块 */
.help-section {
  padding: 50px 0;
  text-align: center;
  background: #f9fafb;
}

.help-section h2 {
  font-size: 24px;
  margin-bottom: 20px;
}

.help-section p {
  color: #666;
  margin-bottom: 30px;
}

.help-section .btn {
  display: inline-block;
  padding: 10px 40px;
  margin: 0 10px;
  text-decoration: none;
  border-radius: 4px;
  transition: all 0.3s;
}

.help-section .online-btn {
  background: #2563eb url('../images/ico-kf.png') no-repeat 15% center;
  color: #fff;
}

.help-section .email-btn {
  background: #fff url('../images/ico-eamil.png') no-repeat 15% center;
  color: #2563eb;
  border: 1px solid #2563eb;
}






/* 隐私政策主体布局 */
.privacy-container {
  padding: 20px 0 200px;
}

.privacy-aside {
  float: left;
  width: 220px;
  padding: 20px;
  background: #fff;
}

.privacy-content {
  float: right;
  width: calc(100% - 240px);
  background: #fff;
  padding: 20px;
}

/* 左侧目录样式 */
.menu-title {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 15px;
}

.menu-list {
  list-style: none;
}

.menu-list li {
  margin: 8px 0;
}

.menu-list a {
  text-decoration: none;
  color: #333;
  transition: color 0.3s;
}

.menu-list a.active {
  color: #007bff;
  font-weight: bold;
}

/* 内容区域样式 */
.privacy-content h1 {
  font-size: 24px;
  margin-bottom: 10px;
  text-align: center;
}

.update-info {
  text-align: center;
  color: #666;
  margin-bottom: 30px;
}

.section-item {
  margin-bottom: 40px;
}

.section-item h2 {
  font-size: 24px;
  margin-bottom: 15px;
}

.section-item p {
  margin: 10px 0;
  line-height: 1.8;
}

.collection-section ul {
  list-style: disc;
  margin: 10px 0 20px 20px;
  line-height: 2;
}

/* 数据安全模块（蓝色背景） */
.data-security {
  background: #ebf5ff;
  padding: 20px;
  border-radius: 6px;
  margin: 15px 0;
}

.data-security ul {
  list-style: none;
}

.data-security ul li {
  margin: 5px 0;
}

.data-security ul li img {
  margin-right: 10px;
}

/* .data-security ul li::before {
  content: "●";
  color: #007bff;
  position: absolute;
  left: -10px;
} */

/* 用户权利与义务（两列布局） */
.user-rights {
  display: flex;
  justify-content: space-between;
  margin: 20px 0;
}

.user-rights .column {
  width: 48%;
  padding: 20px;
  border-radius: 6px;
  background: #f9fafb;
}

.user-rights h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.user-rights ul {
  font-size: 16px;
  list-style: none;
  line-height: 2;
}

/* 外呼系统与隐私保护（两列布局） */
.policy-table {
  display: flex;
  justify-content: space-between;
  margin: 20px 0;
  background: #f9fafb;
}

.policy-table .column {
  width: 48%;
  padding: 20px;
}

.policy-table h3 {
  font-size: 16px;
}

.call-item {
  margin-bottom: 20px;
  border-left: 4px solid #2563eb;
  padding-left: 2%;
}

.policy-table ul {
  font-size: 16px;
  list-style: none;
  line-height: 2;
}

/* 回到顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 40px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  font-weight: bold;
  background: #fff;
  color: #4b5563;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  transition: opacity 0.3s;
  text-shadow: 1px 2px #dddede;
}





/* 联系我们 */
.contact {
  padding: 60px 0;
}
.contact h2 {
  margin-bottom: 20px;
  border-left: solid 6px #007bff;
  padding-left: 20px;
  font-size: 24px;
  line-height: 24px;
}
.contact p {
  margin-bottom: 60px;
  text-align: center;
}
.contact p span {
  margin: 0 4%;
  font-size: 16px;
}