:root {
--primary-color: #00A600;
--primary-light: #4cff4c;
--primary-dark: #007a00;
--text-color: #333;
--light-gray: #f5f5f5;
--gray: #e0e0e0;
--white: #ffffff;
--shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
--transition: all 0.3s ease;
}

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

body {
font-family: 'Helvetica Neue', Arial, sans-serif;
line-height: 1.6;
color: var(--text-color);
background-color: var(--white);
display: flex;
flex-direction: column;
min-height: 100vh;
}

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

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

/* 导航栏样式 */
header {
background-color: var(--primary-color);
color: var(--white);
position: sticky;
top: 0;
z-index: 1000;
box-shadow: var(--shadow);
}

.nav-container {
display: flex;
justify-content: space-between;
align-items: center;
padding: 15px;
}

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

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

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

.nav-menu a {
padding: 5px 10px;
border-radius: 3px;
transition: var(--transition);
}

.nav-menu a:hover {
background-color: var(--primary-dark);
}

.hamburger {
display: none;
cursor: pointer;
flex-direction: column;
justify-content: space-around;
width: 30px;
height: 21px;
}

.hamburger span {
height: 3px;
width: 100%;
background-color: var(--white);
border-radius: 3px;
transition: var(--transition);
}

/* 面包屑导航 */
.breadcrumb {
padding: 15px 0;
font-size: 0.9rem;
color: #666;
margin-top: 10px;
}

.breadcrumb a:hover {
color: var(--primary-color);
text-decoration: underline;
}

/* 主内容区布局 */
.main-content {
display: grid;
grid-template-columns: 70% 28%;
gap: 2%;
margin: 30px 0;
flex: 1;
}

/* 左侧内容区 */
.left-column {
display: flex;
flex-direction: column;
gap: 30px;
}

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

.article-thumb {
width: 100px;
height: 100px;
object-fit: cover;
border-radius: 8px;
flex-shrink: 0;
}

.article-info {
flex: 1;
display: flex;
flex-direction: column;
gap: 10px;
}

.article-title {
font-size: 1.8rem;
font-weight: bold;
color: var(--primary-dark);
}

.article-meta {
display: flex;
gap: 15px;
color: #666;
font-size: 0.9rem;
flex-wrap: wrap;
}

.article-date::before {
content: "📅";
margin-right: 5px;
}

.article-views::before {
content: "👁️";
margin-right: 5px;
}

/* 导读信息 */
.article-intro {
background-color: var(--light-gray);
padding: 20px;
border-radius: 8px;
font-style: italic;
border-left: 4px solid var(--primary-color);
}

/* 文章内容 */
.article-content {
line-height: 1.8;
}

.article-content p {
margin-bottom: 15px;
}

.article-content h2 {
font-size: 1.5rem;
color: var(--primary-color);
margin: 25px 0 15px;
padding-bottom: 5px;
border-bottom: 1px solid var(--gray);
}

.article-content h3 {
font-size: 1.3rem;
color: var(--primary-dark);
margin: 20px 0 15px;
}

.article-content img {
display: block;
max-width: 100%;
height: auto;
margin: 0 auto;
}

/* 文章导航 */
.article-navigation {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 20px;
margin-top: 30px;
}

.nav-item {
padding: 15px;
background-color: var(--light-gray);
border-radius: 8px;
transition: var(--transition);
}

.nav-item:hover {
background-color: var(--primary-light);
}

.nav-label {
font-size: 0.9rem;
color: #666;
margin-bottom: 5px;
}

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

.nav-prev .nav-label::before {
content: "← ";
}

.nav-next {
text-align: right;
}

.nav-next .nav-label::after {
content: " →";
}

/* 右侧内容区 */
.right-column {
display: flex;
flex-direction: column;
gap: 30px;
}

.sidebar-section {
background-color: var(--light-gray);
padding: 20px;
border-radius: 8px;
}

.sidebar-title {
font-size: 1.2rem;
margin-bottom: 15px;
padding-bottom: 10px;
border-bottom: 1px solid var(--gray);
color: var(--primary-color);
}

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

.sidebar-list li {
padding: 8px 0;
border-bottom: 1px solid var(--gray);
}

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

.sidebar-list a {
transition: var(--transition);
display: block;
}

.sidebar-list a:hover {
color: var(--primary-color);
padding-left: 5px;
}

/* 底部样式 */
footer {
background-color: var(--primary-color);
color: var(--white);
text-align: center;
padding: 30px 0;
margin-top: 40px;
width: 100%;
}

/* 响应式设计 */
@media (max-width: 1024px) {
.hamburger {
display: flex;
}

.nav-menu {
position: fixed;
left: -100%;
top: 70px;
flex-direction: column;
background-color: var(--primary-color);
width: 100%;
text-align: center;
transition: 0.3s;
box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
padding: 20px 0;
}

.nav-menu.active {
left: 0;
}

.nav-menu li {
margin: 15px 0;
}

.main-content {
grid-template-columns: 60% 38%;
gap: 2%;
}

.copyright {
display: none;
}
}

@media (max-width: 900px) {
.main-content {
grid-template-columns: 1fr;
gap: 30px;
}
}

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

.article-thumb {
width: 100%;
height: 200px;
}

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

.article-title {
font-size: 1.5rem;
}

.article-navigation {
grid-template-columns: 1fr;
}

.main-content {
margin: 20px 0;
}
}

@media (max-width: 500px) {
.article-thumb {
height: 180px;
}

.article-title {
font-size: 1.3rem;
}
}