/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft Yahei", Arial, sans-serif;
    color: #333;
    line-height: 1.6;
}

/* 头部样式 */
header {
    background: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #e63946;
}

nav a {
    text-decoration: none;
    color: #333;
    margin: 0 15px;
    font-size: 16px;
}

nav a.active, nav a:hover {
    color: #e63946;
}

/* 横幅样式 */
.banner {
    width: 100%;
    margin-bottom: 30px;
}

.banner img {
    width: 100%;
    height: auto;
}

/* 文章区域 */
.articles {
    max-width: 1200px;
    margin: 0 auto 50px;
    padding: 0 20px;
}

.articles h2 {
    font-size: 28px;
    margin-bottom: 20px;
    color: #333;
    border-bottom: 2px solid #e63946;
    padding-bottom: 10px;
}

.article-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.article-item {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}

.article-item:hover {
    transform: translateY(-5px);
}

.article-item h3 a {
    color: #333;
    text-decoration: none;
    font-size: 18px;
    margin-bottom: 10px;
    display: block;
}

.article-item h3 a:hover {
    color: #e63946;
}

.article-item .time {
    color: #999;
    font-size: 14px;
    margin-top: 10px;
    display: block;
}

/* 反馈表单 */
.feedback-form {
    max-width: 600px;
    margin: 30px auto 50px;
    padding: 30px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.feedback-form h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #333;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.form-group textarea {
    resize: vertical;
}

.btn {
    background: #e63946;
    color: #fff;
    border: none;
    padding: 12px 30px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    width: 100%;
    transition: background 0.3s;
}

.btn:hover {
    background: #d62828;
}

.error {
    color: #d62828;
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 4px;
    background: #fee;
}

.success {
    color: #2a9d8f;
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 4px;
    background: #efe;
}

/* 反馈链接区域 */
.feedback-link {
    text-align: center;
    margin-bottom: 50px;
}

.feedback-link .btn {
    display: inline-block;
    width: auto;
}

/* 底部样式 */
footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 20px;
    margin-top: 50px;
    font-size: 14px;
}

/* 备案号专属样式（匹配图片样式） */
.beian {
    margin-top: 8px;
    display: block;
    color: #999; /* 浅灰色，匹配备案号常用样式 */
    font-size: 12px; /* 小字展示 */
    text-decoration: none; /* 去掉下划线 */
}

.beian:hover {
    color: #ccc; /* 鼠标悬浮变亮一点 */
}