body {
  background: #fafafa;
  color: #333333;
  margin-top: 5rem;
}

h1, h2, h3, h4, h5, h6 {
  color: #444444;
}

.bg-steel {
  background-color: #712cf9;
}

/* Logo样式优化，增强在深色背景上的可见性 */
.navbar-brand img {
  filter: brightness(1) invert(0);
}

.site-header .navbar-nav .nav-link {
  color: #cbd5db;
}

.site-header .navbar-nav .nav-link:hover {
  color: #ffffff;
}

.site-header .navbar-nav .nav-link.active {
  font-weight: 500;
}

.content-section {
  background: #ffffff;
  padding: 10px 20px;
  border: 1px solid #dddddd;
  border-radius: 3px;
  margin-bottom: 20px;
  max-width: 800px; /* 限制最大宽度 */
  margin-left: auto;
  margin-right: auto;
  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.container, .container-fluid {
  max-width: 1400px; /* 增加容器最大宽度 */
}

.article-title {
  color: #444444;
}

a.article-title:hover {
  color: #428bca;
  text-decoration: none;
}

.article-content {
  white-space: pre-line;
}

.article-img {
  height: 65px;
  width: 65px;
  margin-right: 16px;
}

.article-metadata {
  padding-bottom: 1px;
  margin-bottom: 4px;
  border-bottom: 1px solid #e3e3e3
}

.article-metadata a:hover {
  color: #333;
  text-decoration: none;
}

.article-svg {
  width: 25px;
  height: 25px;
  vertical-align: middle;
}

.account-img {
  height: 125px;
  width: 125px;
  margin-right: 20px;
  margin-bottom: 16px;
}

.account-heading {
  font-size: 2.5rem;
}

.d-flex {
  display: flex;
}
.spacer {
  flex-grow: 1!important;
}
.d-inline-block {
  display: inline-block;
}
.float-r {
  float: right;
}

/* 优化表单样式 */
.form-control {
  border-radius: 0.25rem;
}

.btn-outline-info {
  border-radius: 0.25rem;
}

/* 用户案例页面特殊样式 */
.display-1 {
  font-size: 4rem;
  font-weight: bold;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

/* 统计数据卡片样式 */
.stat-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

/* 合作伙伴卡片样式 */
.card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

/* 合作伙伴logo样式 */
.partner-logo {
  max-height: 80px;
  max-width: 100%;
  object-fit: contain;
}

.partner-name {
  font-size: 0.9rem;
}

/* 页脚样式 */
.bg-orange {
  background-color: #ff6600 !important;
}

.bg-footer {
  background-color: #6c757d !important;
}

footer a {
  color: #ffffff;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

.text-white h5 {
  color: #ffffff;
}

.text-white p {
  color: #ffffff;
}

.text-white {
  color: #ffffff;
}

/* Sticky footer styles */
html, body {
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
}

footer {
  flex-shrink: 0;
  margin-top: auto;
}

/* 媒体查询，适配小屏幕 */
@media (max-width: 768px) {
  .content-section {
    padding: 10px 15px;
  }
  
  .account-img {
    height: 100px;
    width: 100px;
  }
  
  .account-heading {
    font-size: 2rem;
  }
  
  .display-1 {
    font-size: 3rem;
  }
  
  .container, .container-fluid {
    max-width: 100%;
  }
  
  .partner-logo {
    max-height: 60px;
  }
}