body {
  /* font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; */
  font-family: 'Inter', 'Helvetica Neue', sans-serif;
  margin: 0;
  padding: 0;
  background: #fff;
  color: #222;
  line-height: 1.6;
}

header, footer {
  padding: 1.5rem;
  background: #f6f8fa;
  text-align: center;
}

.main-content {
  padding: 2rem;
  max-width: 850px;
  margin: auto;
  line-height: 1.8;
}

.post-header{
  background-color: #FFFFFF;
}

.post-header h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.post-meta {
  color: #888;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.post-tags{
  text-align: center;
}

.post-tags a {
  display: inline-block;
  background-color: #f3f4f6; /* 浅灰背景 */
  color: #2563eb; /* 蓝色文字 */
  padding: 0.3rem 0.6rem;
  margin: 0 0.4rem 0.8rem 0;
  font-size: 0.85rem;
  border-radius: 9999px; /* 圆角胶囊 */
  text-decoration: none;
  transition: all 0.2s ease;
  border: 1px solid #e5e7eb; /* 浅灰边框 */
}

.post-tags a:hover {
  background-color: #2563eb; /* 蓝色背景 */
  color: #fff; /* 白色文字 */
  border-color: #2563eb;
}

.post-navigation {
  display: flex;
  justify-content: space-between;
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid #ddd;
}

.post-navigation a {
  color: #2563EB;
  text-decoration: none;
  font-weight: 500;
}

.site-logo img {
  width: 100%;
  max-width: 150px;
  display: block;
  margin: 20px auto 10px;
  /* border-bottom: 1px solid #e5e7eb; */
}

.sidebar {
  background-color: #f8f9fa;
  padding: 20px;
  border-right: 1px solid #e0e0e0;
  min-height: 100vh;
  min-width: 300px;
}

.sidebar h2 {
  color: #00897C;
  font-size: 1.1rem;
  margin-top: 20px;
}

.sidebar strong {
  font-size: 1rem;
  /* border-left: 3px solid #00897C; */
  /* padding-left: 8px; */
  margin-top: 1.5rem;
}
/* 
.sidebar strong {
  font-size: 1rem;
  font-weight: 600;
  padding-bottom: 4px;
  border-bottom: 1px solid #ccc;
  margin-top: 1.5rem;
} */

.sidebar ul {
  list-style: none;
  padding-left: 10px;
}

.sidebar li {
  margin: 4px 0;
}

/* .sidebar a {
  color: #2563EB;
  text-decoration: none;
  font-weight: 500;
} */

.sidebar a {
  padding: 2px 0;
  display: inline-block;
  text-decoration: none;
  color: #1565C0;
  transition: color 0.2s ease;
}
.sidebar a:hover {
  color: #FF6718;
}

.sidebar a:hover {
  text-decoration: underline;
}

.top-header {
  background-color: #CCE0F5;
  color: white;
  padding: 24px px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  /* background: linear-gradient(to right, #CCE0F5, #a8c7e8); */
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.logo-link {
  position: absolute;
  left: 0;
  display: flex;
  align-items: center;
}

.logo {
  height: 50px;
  width: 128px;
}

.site-title {
  margin: 0;
  font-size: 2.4rem;
  font-weight: 600;
  color: #086BEC;
}

.homepage-intro {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 2rem;
  background-color: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.homepage-intro h1 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  color: #086BEC;
}

.homepage-intro img{
  width: 900px;
}

.main-content .post{
  min-width: 900px;
}

.main-section article ul {
  margin-left: 40px;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 16px;
  line-height: 1.5;
  border: 1px solid #ddd;
  table-layout: auto;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  overflow: hidden;
}

.post-content thead {
  background-color: #CDE0F6;
  color: #096BEC;
}

.post-content thead th {
  padding: 12px 15px;
  text-align: left;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.3px;
}

.post-content tbody tr {
  border-bottom: 1px solid #ddd;
}

.post-content tbody tr:nth-child(even) {
  background-color: #f9f9f9;
}

.post-content tbody td {
  padding: 12px 15px;
  vertical-align: top;
  font-size: 15px;
  color: #333;
}

.post-content tbody tr:hover {
  background-color: #f1f1f1;
}

footer strong {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  color: #374151; /* 深灰色标题 */
}