/* 基础样式 */
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}

body {
font-family: 'Helvetica Neue', Arial, sans-serif;
line-height: 1.6;
color: #333;
background-color: #f9f9f9;
}

a {
text-decoration: none;
color: #019858;
transition: all 0.3s ease;
}

a:hover {
color: #016e3f;
}

.container {
width: 100%;
max-width: 1200px;
margin: 0 auto;
padding: 0 15px;
}

section {
margin: 30px 0;
padding: 20px;
background: #fff;
border-radius: 8px;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

h2 {
color: #019858;
margin-bottom: 20px;
padding-bottom: 10px;
border-bottom: 2px solid #eaeaea;
}

/* 导航样式 */
nav {
background-color: #019858;
padding: 15px 0;
position: sticky;
top: 0;
z-index: 1000;
}

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

.logo {
color: white;
font-size: 1.5rem;
font-weight: bold;
}

.logo a {
color: white;
}

.nav-menu {
display: flex;
list-style: none;
}

.nav-menu li {
margin-left: 25px;
position: relative;
}

.nav-menu a {
color: white;
font-weight: 500;
padding: 5px 0;
position: relative;
}

.nav-menu a::after {
content: '';
position: absolute;
width: 0;
height: 3px;
bottom: 0;
left: 0;
background-color: white;
transition: width 0.3s ease;
border-radius: 3px;
}

.nav-menu a:hover::after {
width: 100%;
}

.menu-toggle {
display: none;
color: white;
font-size: 1.5rem;
cursor: pointer;
}

/* 面包屑导航 */
.breadcrumb {
padding: 15px 0;
font-size: 0.9rem;
color: #666;
}

.breadcrumb a {
color: #019858;
}

.breadcrumb span:last-child {
color: #666;
}

/* 主内容区域布局 */
.main-content {
display: flex;
gap: 30px;
margin: 20px 0 40px;
}

.left-column {
flex: 1;
}

.right-column {
width: 300px;
}

/* 文章头部 */
.article-header {
display: flex;
margin-bottom: 20px;
align-items: flex-start;
}

.article-thumb {
width: 100px;
height: 100px;
object-fit: cover;
border-radius: 6px;
margin-right: 20px;
flex-shrink: 0;
}

.article-info {
flex: 1;
}

.article-title {
font-size: 1.8rem;
font-weight: bold;
margin-bottom: 15px;
color: #333;
}

.article-meta {
display: flex;
flex-wrap: wrap;
gap: 15px;
color: #777;
font-size: 0.9rem;
}

.article-date::before {
content: "📅 ";
}

.article-views::before {
content: "👀 ";
}

/* 导读信息 */
.article-intro {
background-color: #f5f5f5;
padding: 15px;
border-left: 4px solid #019858;
margin-bottom: 25px;
border-radius: 4px;
}

.article-intro p {
margin: 0;
color: #555;
font-style: italic;
}

/* 文章内容 */
.article-content {
line-height: 1.8;
color: #444;
margin-bottom: 30px;
}

.article-content p {
margin-bottom: 20px;
}

.article-content h3 {
color: #019858;
margin: 30px 0 15px;
padding-bottom: 8px;
border-bottom: 1px solid #eaeaea;
}

.article-content img {
max-width: 100%;
height: auto;
border-radius: 8px;
margin: 15px 0;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* 文章导航 */
.article-navigation {
display: flex;
justify-content: space-between;
border-top: 1px solid #eee;
padding-top: 20px;
}

.nav-previous, .nav-next {
flex: 1;
padding: 10px;
}

.nav-previous {
text-align: left;
padding-right: 15px;
}

.nav-next {
text-align: right;
padding-left: 15px;
}

.nav-label {
font-size: 0.9rem;
color: #777;
display: block;
margin-bottom: 5px;
}

.nav-title {
font-weight: 500;
display: -webkit-box;
-webkit-line-clamp: 2;
-webkit-box-orient: vertical;
overflow: hidden;
}

/* 侧边栏文章列表 */
.sidebar-list {
margin-bottom: 30px;
}

.sidebar-item {
padding: 10px 0;
border-bottom: 1px solid #eee;
}

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

.sidebar-item a {
display: -webkit-box;
-webkit-line-clamp: 2;
-webkit-box-orient: vertical;
overflow: hidden;
color: #444;
font-weight: normal;
transition: color 0.3s ease;
}

.sidebar-item a:hover {
color: #019858;
}

/* 页脚样式 */
footer {
background-color: #019858;
color: white;
text-align: center;
padding: 20px 0;
margin-top: 40px;
}

footer a {
color: white;
}

/* 响应式设计 */
@media (max-width: 1024px) {
.nav-menu {
display: none;
flex-direction: column;
width: 100%;
position: absolute;
top: 100%;
left: 0;
background-color: #019858;
padding: 15px;
}

.nav-menu.active {
display: flex;
}

.nav-menu li {
margin: 10px 0;
}

.menu-toggle {
display: block;
}

.article-title {
font-size: 1.6rem;
}

.copyright {
display: none;
}
}

@media (max-width: 768px) {
.main-content {
flex-direction: column;
}

.right-column {
width: 100%;
}

.article-header {
flex-direction: column;
}

.article-thumb {
width: 100%;
height: 200px;
margin-right: 0;
margin-bottom: 15px;
}

.article-meta {
flex-direction: column;
gap: 5px;
}

.article-navigation {
flex-direction: column;
gap: 15px;
}

.nav-previous, .nav-next {
text-align: left;
padding: 0;
}
}

@media (max-width: 500px) {
.article-thumb {
height: 160px;
}

.article-title {
font-size: 1.4rem;
}
}