/* 基础样式 */
:root {
--main-color: #BBFFBB;
--text-color: #333;
--border-color: #ddd;
--hover-color: #99DD99;
}

* {
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: "Microsoft YaHei", Arial, sans-serif;
}

body {
background-color: var(--main-color);
color: var(--text-color);
line-height: 1.6;
}

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

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

/* 导航栏样式 */
header {
background-color: var(--main-color);
box-shadow: 0 2px 5px rgba(0,0,0,0.1);
position: sticky;
top: 0;
z-index: 1000;
}

.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-item {
margin-left: 20px;
}

.nav-link {
padding: 5px 10px;
transition: all 0.3s ease;
}

.nav-link:hover {
background-color: var(--hover-color);
border-radius: 4px;
}

.hamburger {
display: none;
cursor: pointer;
font-size: 1.5rem;
}

/* 内容区域通用样式 */
section {
margin: 40px 0;
padding: 20px;
background-color: rgba(255, 255, 255, 0.7);
border-radius: 8px;
box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.section-title {
margin-bottom: 20px;
padding-bottom: 10px;
border-bottom: 1px solid var(--border-color);
font-size: 1.5rem;
}

/* 最新文章列表 */
.latest-articles {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 20px;
}

.article-card {
padding: 15px;
border: 1px solid var(--border-color);
border-radius: 6px;
transition: all 0.3s ease;
background-color: rgba(255, 255, 255, 0.9);
}

.article-card:hover {
transform: translateY(-5px);
box-shadow: 0 5px 15px rgba(0,0,0,0.1);
background-color: rgba(255, 255, 255, 1);
}

.article-title {
font-size: 1.2rem;
margin-bottom: 10px;
word-wrap: break-word;
}

.article-meta {
display: flex;
font-size: 0.85rem;
color: #666;
margin-bottom: 10px;
}

.article-meta span {
margin-right: 15px;
}

.article-meta span::before {
margin-right: 5px;
}

.article-summary {
color: #555;
line-height: 1.5;
}

/* 推荐文章图片列表 */
.featured-articles {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 15px;
}

.featured-card {
height: 200px;
border-radius: 6px;
overflow: hidden;
position: relative;
background-size: cover;
background-position: center;
transition: all 0.3s ease;
}

.featured-card:hover {
transform: scale(1.05);
box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.featured-content {
position: absolute;
bottom: 0;
left: 0;
right: 0;
background: rgba(0, 0, 0, 0.7);
color: white;
padding: 15px;
}

.featured-title {
font-size: 1.1rem;
margin-bottom: 8px;
word-wrap: break-word;
}

.featured-summary {
display: none;
}

/* 热门文章列表 */
.popular-articles {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 20px;
}

.popular-card {
padding: 15px;
border: 1px solid var(--border-color);
border-radius: 6px;
transition: all 0.3s ease;
background-color: rgba(255, 255, 255, 0.9);
}

.popular-card:hover {
transform: translateY(-5px);
box-shadow: 0 5px 15px rgba(0,0,0,0.1);
background-color: rgba(255, 255, 255, 1);
}

.popular-meta {
display: flex;
justify-content: space-between;
font-size: 0.85rem;
color: #666;
margin-bottom: 10px;
}

.popular-title {
font-size: 1.2rem;
margin-bottom: 10px;
word-wrap: break-word;
}

.popular-summary {
color: #555;
line-height: 1.5;
}

/* 文字介绍区域 */
.intro-text {
padding: 20px;
line-height: 1.8;
font-size: 1.1rem;
}

/* 友情链接 */
.friend-links {
padding: 20px;
}

.links-list {
display: flex;
flex-wrap: wrap;
gap: 10px;
}

.link-item {
padding: 5px 10px;
background-color: rgba(255, 255, 255, 0.9);
border-radius: 4px;
border: 1px solid var(--border-color);
transition: all 0.3s ease;
}

.link-item:hover {
background-color: var(--hover-color);
}

/* 底部样式 */
footer {
background-color: var(--main-color);
text-align: center;
padding: 20px 0;
margin-top: 40px;
border-top: 1px solid var(--border-color);
}

/* 媒体查询 - 平板设备 */
@media (max-width: 1024px) {
.latest-articles,
.popular-articles {
grid-template-columns: 1fr;
}

.featured-articles {
grid-template-columns: repeat(2, 1fr);
}

.nav-menu {
display: none;
position: absolute;
top: 70px;
left: 0;
right: 0;
background-color: var(--main-color);
flex-direction: column;
padding: 20px;
box-shadow: 0 5px 10px rgba(0,0,0,0.1);
}

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

.nav-item {
margin: 10px 0;
}

.hamburger {
display: block;
}

.intro-text,
.friend-links,
.copyright {
display: none;
}
}

/* 媒体查询 - 手机设备 */
@media (max-width: 768px) {
.featured-articles {
grid-template-columns: 1fr;
}

.popular-meta {
flex-direction: column;
}

.popular-meta span {
margin-bottom: 5px;
}
}

/* 媒体查询 - 小屏幕手机 */
@media (max-width: 500px) {
.featured-articles {
grid-template-columns: 1fr;
}
}

/* 图标样式 (使用CSS伪元素) */
.article-meta .date::before {
content: "📅 ";
}

.popular-meta .date::before {
content: "📅 ";
}

.popular-meta .views::before {
content: "👁️ ";
}