* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 动画关键帧 */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInTop {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.05);
  }

  100% {
    transform: scale(1);
  }
}

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  animation: fadeIn 0.8s ease-in;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 移动端菜单按钮样式 */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.menu-icon {
  display: block;
  width: 100%;
  height: 3px;
  background-color: #333;
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* 侧边菜单样式 */
.side-menu {
  position: fixed;
  top: 0;
  right: -300px;
  width: 280px;
  height: 100vh;
  background-color: #fff;
  box-shadow: -2px 0 5px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  transition: right 0.3s ease;
  overflow-y: auto;
}

.side-menu.active {
  right: 0;
}

.side-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid #eee;
}

.side-menu-header h3 {
  margin: 0;
  color: #333;
}

.close-btn {
  background: none;
  border: none;
  font-size: 24px;
  color: #666;
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close-btn:hover {
  color: #333;
}

.side-menu-content {
  padding: 20px 0;
}

.menu-item {
  display: block;
  padding: 15px 20px;
  color: #333;
  text-decoration: none;
  transition: background-color 0.3s ease;
  border-bottom: 1px solid #f0f0f0;
}

.menu-item:hover {
  background-color: #f5f5f5;
  color: #1a73e8;
}

/* 遮罩层样式 */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.overlay.active {
  opacity: 1;
  visibility: visible;
}

/* 头部样式 */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  animation: slideInTop 0.8s ease-in;
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 50px;
  margin-right: 10px;
  transition: transform 0.3s ease;
}

.logo img:hover {
  transform: scale(1.1);
  animation: pulse 0.5s ease;
}

/* 固定联系按钮样式 */
.fixed-contact-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #1a73e8;
  color: white;
  padding: 12px 20px;
  border-radius: 25px;
  box-shadow: 0 4px 15px rgba(26, 115, 232, 0.4);
  cursor: pointer;
  z-index: 998;
  transition: all 0.3s ease;
  font-size: 16px;
  font-weight: 500;
  animation: pulse 2s infinite;
}

.fixed-contact-btn:hover {
  background-color: #1557b0;
  box-shadow: 0 6px 20px rgba(26, 115, 232, 0.6);
  transform: translateY(-3px);
}

/* 联系二维码样式 */
.contact-qr {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
}

.contact-qr span {
  font-size: 14px;
  color: #666;
}

.contact-qr img {
  width: 80px;
  height: 80px;
  border-radius: 8px;
  transition: transform 0.3s ease;
}

.contact-qr img:hover {
  transform: scale(1.1);
  animation: pulse 0.5s ease;
}

/* 轮播图样式 */
.contact-icon {
  margin-right: 8px;
  font-size: 18px;
}

/* 轮播图样式 */
.carousel {
  position: relative;
  width: 100%;
  height: 400px;
  overflow: hidden;
  margin-bottom: 50px;
}

.carousel-slide {
  position: absolute;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  opacity: 0;
  z-index: 0;
  transition: opacity 0.5s ease-in-out;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.carousel-content {
  text-align: right;
  position: absolute;
  padding: 0 50px;
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.carousel-content h2 {
  font-size: 32px;
  color: #1E90FF;
  margin-bottom: 10px;
  animation: slideInRight 1s ease-in-out;
}

.carousel-content p {
  font-size: 18px;
  color: #ffffff;
  animation: slideInRight 1.2s ease-in-out;
}

.carousel-controls {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  display: flex;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 10;
}

.carousel-btn {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.8);
  border: none;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.carousel-btn:hover {
  background: rgba(255, 255, 255, 1);
  transform: scale(1.1);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* 服务卡片样式 */
.services {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 30px;
  margin-bottom: 50px;
}

.service-card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.service-card {
  text-align: center;
  padding: 30px 20px;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  transition: all 0.3s ease;
  animation: slideInUp 0.8s ease-in;
}

.service-card:nth-child(1) {
  animation-delay: 0.1s;
}

.service-card:nth-child(2) {
  animation-delay: 0.2s;
}

.service-card:nth-child(3) {
  animation-delay: 0.3s;
}

.service-card:nth-child(4) {
  animation-delay: 0.4s;
}

.service-card:nth-child(5) {
  animation-delay: 0.5s;
}

.service-card:hover {
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transform: translateY(-5px);
}

.service-icon {
  font-size: 40px;
  color: #1E90FF;
  margin-bottom: 20px;
  transition: transform 0.3s ease;
}

.service-card:hover .service-icon {
  transform: scale(1.2);
}

.service-card h3 {
  font-size: 18px;
  color: #1E90FF;
  margin-bottom: 10px;
}

.service-card p {
  font-size: 14px;
  color: #666;
}

/* 常见问题样式 */
.faq-section {
  background: #f9f9f9;
  padding: 50px 0;
  margin-bottom: 50px;
  animation: fadeIn 0.8s ease-in;
}

.faq-section h2 {
  text-align: center;
  color: #1E90FF;
  margin-bottom: 30px;
  font-size: 28px;
}

.faq-item {
  background: #fff;
  margin-bottom: 15px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  animation: slideInUp 0.8s ease-in;
}

.faq-item:nth-child(1) {
  animation-delay: 0.1s;
}

.faq-item:nth-child(2) {
  animation-delay: 0.2s;
}

.faq-item:nth-child(3) {
  animation-delay: 0.3s;
}

.faq-item:nth-child(4) {
  animation-delay: 0.4s;
}

.faq-question {
  padding: 20px;
  background: #fff;
  border: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 16px;
  border-bottom: 1px solid #f0f0f0;
  color: #1E90FF;
}

.faq-question i {
  transition: transform 0.3s ease;
}

.faq-question.active i {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  background: #fafafa;
}

.faq-answer.active {
  padding: 20px;
  max-height: 200px;
  animation: fadeIn 0.3s ease-in;
}

/* 底部样式 */
footer {
  background: #f0f8ff;
  padding: 50px 0;
  text-align: center;
  animation: slideInUp 0.8s ease-in;
}

.footer-qr img {
  width: 100px;
  height: 100px;
  margin-bottom: 20px;
  transition: transform 0.3s ease;
}

.footer-qr img:hover {
  transform: scale(1.1);
  animation: pulse 0.5s ease;
}

/* 联系客服弹框样式 */
.contact-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1001;
  visibility: hidden;
  opacity: 0;
  transition: all 0.3s ease;
}

.contact-modal.active {
  visibility: visible;
  opacity: 1;
}

.contact-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
}

.contact-modal-content {
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  max-width: 400px;
  width: 90%;
  animation: slideInUp 0.3s ease;
  position: relative;
  z-index: 1002;
}

.contact-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid #eee;
}

.contact-modal-header h3 {
  margin: 0;
  color: #333;
}

.contact-modal-close {
  background: none;
  border: none;
  font-size: 24px;
  color: #666;
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.3s ease;
}

.contact-modal-close:hover {
  color: #333;
}

.contact-modal-body {
  padding: 20px;
}

.contact-item {
  display: flex;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid #f0f0f0;
}

.contact-item:last-child {
  border-bottom: none;
}

.contact-item .contact-icon {
  font-size: 24px;
  margin-right: 20px;
  color: #1E90FF;
  width: 30px;
  text-align: center;
}

.contact-item .contact-info {
  flex: 1;
}

.contact-item .contact-label {
  display: block;
  font-size: 14px;
  color: #999;
  margin-bottom: 5px;
}

.contact-item .contact-value {
  display: block;
  font-size: 16px;
  color: #333;
  text-decoration: none;
  transition: color 0.3s ease;
}

.contact-item .contact-value:hover {
  color: #1E90FF;
}

/* 匹配申请弹框样式 */
.match-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1001;
  visibility: hidden;
  opacity: 0;
  transition: all 0.3s ease;
}

.match-modal.active {
  visibility: visible;
  opacity: 1;
}

.match-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  display: none;
}

.match-modal-overlay.active {
  display: block;
}

.match-modal-content {
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  max-width: 400px;
  width: 90%;
  animation: slideInUp 0.3s ease;
  position: relative;
  z-index: 1002;
}

.match-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid #eee;
}

.match-modal-header h3 {
  margin: 0;
  color: #333;
}

.match-modal-close {
  background: none;
  border: none;
  font-size: 24px;
  color: #666;
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.3s ease;
}

.match-modal-close:hover {
  color: #333;
}

.match-modal-body {
  padding: 20px;
}

/* 表单样式 */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  color: #333;
  font-size: 16px;
  transition: border-color 0.3s ease;
  box-sizing: border-box;
}

.form-group input {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
  transition: border-color 0.3s ease;
  box-sizing: border-box;
}

.form-group input:focus {
  outline: none;
  border-color: #0066cc;
  box-shadow: 0 0 0 2px rgba(40, 196, 69, 0.2);
}

.error-message {
  display: block;
  color: #e74c3c;
  font-size: 14px;
  margin-top: 5px;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 30px;
}

.btn-cancel,
.btn-submit {
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-cancel {
  background-color: #f5f5f5;
  color: #333;
  border: 1px solid #ddd;
}

.btn-cancel:hover {
  background-color: #e0e0e0;
}

.btn-submit {
  background-color: #0066cc;
  color: white;
}

.btn-submit:hover {
  background-color: #22a839;
}

/* 服务卡片链接 */
.service-card-link {
  text-decoration: none;
  color: inherit;
  flex: 1;
}

/* 顶部横幅 */
.service-banner {
  background: linear-gradient(135deg, #0066cc, #0099ff);
  color: white;
  padding: 60px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.service-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;

  background-size: cover;
  opacity: 0.1;
  z-index: 0;
}

.banner-content {
  position: relative;
  z-index: 1;
}

.banner-content h1 {
  font-size: 36px;
  margin-bottom: 10px;
  font-weight: bold;
}

.banner-content p {
  font-size: 18px;
  opacity: 0.9;
}

/* 服务详情页 */
.service-detail {
  margin: 50px 0;
  animation: fadeIn 1s ease-in-out;
  padding: 0 20px;
}

/* 导航标签 */
.service-tabs {
  display: flex;
  border-bottom: 2px solid #e0e0e0;
  margin-bottom: 30px;
}

.tab {
  padding: 15px 30px;
  text-decoration: none;
  color: #666;
  font-size: 16px;
  font-weight: 500;
  transition: all 0.3s ease;
  border-bottom: 3px solid transparent;
}

.tab:hover {
  color: #0066cc;
}

.tab.active {
  color: #0066cc;
  border-bottom-color: #0066cc;
}

/* 项目简介 */
.section {
  margin-bottom: 50px;
}

.section-title {
  font-size: 24px;
  color: #0066cc;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #f0f0f0;
}

.section p {
  line-height: 1.8;
  color: #333;
  margin-bottom: 20px;
}

/* 功能列表 */
.feature-list {
  margin: 30px 0;
}

.feature-item {
  padding: 10px 0;
  padding-left: 25px;
  position: relative;
  line-height: 1.6;
  color: #333;
}

.feature-icon {
  color: #0066cc;
  font-size: 20px;
  position: absolute;
  left: 0;
  top: 8px;
}

/* 服务优势 */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin: 30px 0;
}

.advantage-card {
  background: #f9f9f9;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.advantage-card:hover {
  transform: translateY(-5px);
}

.advantage-card h3 {
  color: #0066cc;
  margin-bottom: 15px;
  font-size: 18px;
}

.advantage-card p {
  color: #666;
  line-height: 1.6;
  margin-bottom: 0;
}

/* 操作按钮 */
.action-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin: 50px 0;
}

/* 移动端底部固定操作按钮 */
.mobile-action-buttons {
  display: none;
  gap: 20px;
  justify-content: center;
  padding: 15px;
  background-color: #f5f5f5;
  border-top: 1px solid #e0e0e0;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.btn咨询,
.btn申请 {
  padding: 15px 40px;
  font-size: 16px;
  font-weight: bold;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn咨询 {
  background: white;
  color: #0066cc;
  border: 2px solid #0066cc;
}

.btn咨询:hover {
  background: #0066cc;
  color: white;
}

.btn申请 {
  background: #0066cc;
  color: white;
  border: 2px solid #0066cc;
}

.btn申请:hover {
  background: #0052a3;
  border-color: #0052a3;
}

/* 论文指南列表页样式 */
.guide-list {
  margin: 50px 0;
  animation: fadeIn 1s ease-in-out;
}

/* 论文指南列表样式 */
.guide-articles {
  list-style: none;
  padding: 0;
  margin: 0;
}

.guide-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid #eee;
}

.guide-item:first-child {
  padding-top: 0;
}

.guide-item:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.guide-item-title {
  margin: 0;
  font-size: 18px;
  font-weight: normal;
  flex: 1;
  margin-right: 20px;
}

.guide-item-title a {
  color: #333;
  text-decoration: none;
  transition: color 0.3s ease;
}

.guide-item-title a:hover {
  color: #1E90FF;
  text-decoration: underline;
}

.guide-item-date {
  font-size: 14px;
  color: #666;
  white-space: nowrap;
}

.guide-card-title {
  font-size: 20px;
  color: #0066cc;
  margin-bottom: 15px;
  line-height: 1.4;
}

.guide-card-title a {
  color: #0066cc;
  text-decoration: none;
  transition: color 0.3s ease;
}

.guide-card-title a:hover {
  color: #004999;
}

.guide-card-excerpt {
  color: #666;
  line-height: 1.7;
  margin-bottom: 20px;
}

.guide-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 15px;
  border-top: 1px solid #f0f0f0;
  color: #999;
  font-size: 14px;
}

.guide-card-category {
  background: #e6f2ff;
  color: #0066cc;
  padding: 5px 12px;
  border-radius: 15px;
  font-size: 13px;
  font-weight: 500;
}

/* 简化版论文指南列表样式 */
.guide-item {
  margin-bottom: 20px;
  padding: 15px 0;
  border-bottom: 1px solid #f0f0f0;
}

.guide-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.guide-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.guide-title {
  font-size: 18px;
  color: #333;
  margin: 0;
  flex: 1;
}

.guide-date {
  font-size: 14px;
  color: #999;
  margin-left: 20px;
}

.guide-item:hover .guide-title {
  color: #0066cc;
}

/* 论文指南详情页样式 */
.article-detail {
  max-width: 800px;
  margin: 50px auto;
  padding: 0 20px;
  animation: fadeIn 1s ease-in-out;
}

.article-header {
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 2px solid #f0f0f0;
}

.article-title {
  font-size: 32px;
  color: #333;
  margin-bottom: 15px;
  line-height: 1.3;
}

.article-meta {
  display: flex;
  gap: 20px;
  color: #999;
  font-size: 14px;
}

.article-date,
.article-category {
  display: flex;
  align-items: center;
  gap: 5px;
}

.article-content {
  color: #333;
  line-height: 1.8;
  font-size: 16px;
}

.article-content p {
  margin-bottom: 25px;
  text-indent: 2em;
}

.article-content h2 {
  font-size: 26px;
  color: #0066cc;
  margin: 40px 0 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #e6f2ff;
}

.article-content h3 {
  font-size: 20px;
  color: #333;
  margin: 30px 0 15px;
}

.article-content ul {
  margin: 0 0 25px 20px;
  padding-left: 20px;
}

.article-content li {
  margin-bottom: 10px;
  line-height: 1.7;
}

/* 文章导航 */
.article-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 50px 0;
  padding-top: 30px;
  border-top: 2px solid #f0f0f0;
  font-size: 14px;
}

.article-prev,
.article-next {
  display: flex;
  align-items: center;
  gap: 5px;
}

.article-nav a {
  color: #0066cc;
  text-decoration: none;
  transition: color 0.3s ease;
}

.article-nav a:hover {
  color: #004999;
  text-decoration: underline;
}

.service-banner1 {
  height: auto;


}

.service-banner1 img {
  width: 100%;
  height: auto;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .services {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .carousel {
    height: 300px;
  }

  .carousel-content h2 {
    font-size: 24px;
  }

  .carousel-content p {
    font-size: 16px;
  }

  /* 头部导航栏 */
  header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: #fff;
    z-index: 999;
    padding: 10px 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  }

  /* 主体内容添加顶部外边距 */
  main,
  .container {
    margin-top: 80px;
  }

  /* 显示移动端菜单按钮 */
  .mobile-menu-btn {
    display: flex;
  }

  /* 隐藏桌面端联系二维码 */
  .contact-qr {
    display: none;
  }

  /* 固定操作按钮在底部 */
  .action-buttons {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    padding: 15px 20px;
    margin: 0;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 100;
    gap: 10px;
  }

  .btn咨询,
  .btn申请 {
    flex: 1;
    padding: 15px 40px;
    font-size: 16px;
  }

  /* 隐藏服务优势部分 */
  .advantage-section {
    display: none;
  }

  /* 移动端底部固定操作按钮样式调整 */
  .mobile-action-buttons {
    display: flex;
    gap: 10px;
    padding: 15px 20px;
  }

  .mobile-action-buttons .btn咨询,
  .mobile-action-buttons .btn申请 {
    flex: 1;
    padding: 15px 30px;
    font-size: 15px;
  }

  /* 论文指南列表页移动端适配 */
  .guide-articles {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .guide-card-title {
    font-size: 18px;
  }

  /* 论文指南详情页移动端适配 */
  .article-title {
    font-size: 24px;
  }

  .article-content {
    font-size: 15px;
  }

  .article-content h2 {
    font-size: 22px;
  }

  .article-content h3 {
    font-size: 18px;
  }

  /* 文章导航移动端适配 */
  .article-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }
}


@media (max-width: 480px) {
  .services {
    grid-template-columns: repeat(2, 1fr);
  }

  .carousel {
    height: 250px;
  }

  .carousel-content h2 {
    font-size: 20px;
  }

  .carousel-content p {
    font-size: 14px;
  }

  /* 移动端适配固定按钮 */
  .fixed-contact-btn {
    padding: 10px 16px;
    font-size: 14px;
    bottom: 15px;
    right: 15px;
  }

  .contact-icon {
    font-size: 16px;
    margin-right: 6px;
  }

  /* 为footer添加底部外边距 */
  footer {
    margin-bottom: 80px;
  }
}

/* 已有的样式保持不变 */
.indent {
  text-indent: 2em;
}