/* 全局样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    background-color: #f4f7f6;
    color: #333;
    line-height: 1.6;
}

/* 头部样式 */
header {
    background-color: #2c3e50;
    color: #ffffff;
    text-align: center;
    padding: 2rem 1rem;
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
}

/* 主内容区域 */
main {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.posts-container {
    display: grid;
    gap: 2rem;
}

/* 文章卡片样式 */
.post-card {
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: transform 0.2s ease-in-out;
}

.post-card:hover {
    transform: translateY(-5px);
}

.post-card img {
    width: 100%;
    height: 200px;
    object-fit: cover; /* 保证图片不变形 */
}

.post-content {
    padding: 1.5rem;
}

.post-content h2 {
    margin-top: 0;
    color: #2c3e50;
}

.post-meta {
    font-size: 0.85rem;
    color: #7f8c8d;
    margin-bottom: 1rem;
}

/* “阅读全文”按钮样式 */
.read-more-btn {
    display: inline-block;
    background-color: #3498db;
    color: #ffffff;
    padding: 0.5rem 1rem;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.2s;
}

.read-more-btn:hover {
    background-color: #2980b9;
}

/* 页脚样式 */
footer {
    text-align: center;
    padding: 1.5rem;
    background-color: #ecf0f1;
    color: #7f8c8d;
    margin-top: 2rem;
}



/* 返回主页链接 */
.back-to-home {
    display: inline-block;
    margin-bottom: 1.5rem;
    color: #3498db;
    text-decoration: none;
    font-weight: bold;
}
.back-to-home:hover {
    text-decoration: underline;
}

/* 完整文章样式 */
.post-full {
    background-color: #ffffff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.post-full-image {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.post-full-content p {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

/* 评论区样式 */
.comment-section {
    margin-top: 2rem;
    background-color: #ffffff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.comment-section h2 {
    margin-top: 0;
    border-bottom: 2px solid #ecf0f1;
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
}

/* 评论表单样式 */
#comment-form .form-group {
    margin-bottom: 1rem;
}

#comment-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

#comment-form input,
#comment-form textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1rem;
    box-sizing: border-box; /* 保证padding不会撑大宽度 */
}

#comment-form button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

#comment-form button:hover {
    background-color: #2980b9;
}

/* 评论列表样式 */
.comments-list-container {
    margin-top: 2.5rem;
}

.comment {
    border: 1px solid #ecf0f1;
    background-color: #f9f9f9;
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.comment strong {
    display: block;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}
.map-container {
    margin-top: 3rem;
    padding: 2rem;
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.map-container h2 {
    text-align: center;
    margin-top: 0;
    margin-bottom: 1.5rem;
}

#map {
    height: 450px; /* 必须给地图一个高度！ */
    width: 100%;
    border-radius: 8px;
}