/* ============================================================
   复古 Web1.0 风格样式表 - 2003年企业官网气质
   蓝白主色、线条清晰、轻微浮雕、传统稳重
   ============================================================ */

/* --- 基础重置 --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    /* 复古：系统无衬线字体为主，正文清晰易读 */
    font-family: Arial, 'SimHei', 'Microsoft YaHei', sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: #333333;
    background: #F5F5F5;
}

/* --- 链接：经典Web1.0蓝色下划线 --- */
a {
    color: #003399;
    text-decoration: underline;
}

a:hover {
    color: #001a66;
    text-decoration: none;
}

a:visited {
    color: #660099;
}

/* --- 主容器：固定宽度居中，复古经典布局 --- */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 15px;
}

/* ============================================================
   头部 Header - 深蓝通栏，白边框分隔
   ============================================================ */
.header {
    background: #003399;
    color: #FFFFFF;
    text-align: center;
    padding: 20px 0;
    border-bottom: 3px solid #FFFFFF;
}

.header h1 {
    font-family: 'Times New Roman', 'SimSun', serif;
    font-size: 28px;
    letter-spacing: 4px;
    margin-bottom: 5px;
}

.header .slogan {
    font-size: 13px;
    color: #E6F0FF;
    letter-spacing: 2px;
}

/* ============================================================
   导航栏 Navbar - 蓝底白字，按钮式斜面效果
   ============================================================ */
.navbar {
    background: #003399;
    border-bottom: 2px solid #001a66;
    border-top: 1px solid #3366cc;
}

.navbar .container {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 0 15px;
    flex-wrap: wrap;
}

.navbar-brand {
    color: #FFFFFF !important;
    font-family: 'Times New Roman', 'SimSun', serif;
    font-size: 16px;
    font-weight: bold;
    text-decoration: none;
    padding: 8px 12px;
    display: inline-block;
}

.navbar-brand:hover {
    color: #E6F0FF !important;
    text-decoration: none;
}

.navbar-brand:visited {
    color: #FFFFFF !important;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 2px;
    flex-wrap: wrap;
}

/* 复古：按钮式导航，轻微斜面bevel效果 */
.navbar-menu a,
.dropdown-toggle {
    color: #FFFFFF;
    text-decoration: none;
    padding: 6px 12px;
    font-size: 13px;
    background: #0047AB;
    border-top: 1px solid #3366cc;
    border-left: 1px solid #3366cc;
    border-right: 1px solid #001a66;
    border-bottom: 1px solid #001a66;
    display: inline-block;
}

.navbar-menu a:hover,
.dropdown-toggle:hover {
    background: #0055cc;
    color: #FFFFFF;
    text-decoration: none;
}

/* 按下效果：简单下沉感 */
.navbar-menu a:active,
.dropdown-toggle:active {
    border-top: 1px solid #001a66;
    border-left: 1px solid #001a66;
    border-right: 1px solid #3366cc;
    border-bottom: 1px solid #3366cc;
}

.navbar-menu span {
    color: #E6F0FF;
    font-size: 12px;
    padding: 0 8px;
}

/* --- 下拉菜单：复古表格式，无动画 --- */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: #FFFFFF;
    min-width: 200px;
    border: 1px solid #003399;
    z-index: 1000;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu a {
    color: #003399;
    padding: 8px 12px;
    display: block;
    font-size: 13px;
    background: #FFFFFF;
    border: none;
    border-bottom: 1px solid #E6F0FF;
    text-decoration: none;
}

.dropdown-menu a:hover {
    background: #E6F0FF;
    color: #003399;
    text-decoration: none;
}

/* ============================================================
   主内容区 - 白底，清晰区块分割
   ============================================================ */
.main-content {
    background: #FFFFFF;
    border-left: 1px solid #CCCCCC;
    border-right: 1px solid #CCCCCC;
    min-height: 500px;
    padding: 20px;
}

/* --- 区块标题：深蓝加粗，下划线分隔 --- */
.section-title {
    border-bottom: 2px solid #003399;
    padding-bottom: 8px;
    margin-bottom: 15px;
}

.section-title h2 {
    color: #003399;
    font-family: 'Times New Roman', 'SimSun', serif;
    font-size: 20px;
    font-weight: bold;
}

/* --- 页面标题 --- */
.page-header {
    border-bottom: 2px solid #003399;
    padding-bottom: 8px;
    margin-bottom: 15px;
}

.page-header h2 {
    color: #003399;
    font-family: 'Times New Roman', 'SimSun', serif;
    font-size: 20px;
    font-weight: bold;
}

/* ============================================================
   文章列表 - 复古表格式布局
   ============================================================ */
.article-list {
    margin-bottom: 20px;
}

.article-card,
.article-item {
    background: #FFFFFF;
    padding: 15px;
    margin-bottom: 10px;
    border: 1px solid #CCCCCC;
    border-left: 3px solid #003399;
}

.article-card h3,
.article-item h3 {
    font-size: 16px;
    margin-bottom: 8px;
    font-weight: bold;
}

.article-card h3 a,
.article-item h3 a {
    color: #003399;
    text-decoration: underline;
}

.article-card h3 a:hover,
.article-item h3 a:hover {
    color: #001a66;
    text-decoration: none;
}

/* 文章元信息：灰色小字 */
.article-meta {
    color: #666666;
    font-size: 12px;
    margin-bottom: 8px;
    border-bottom: 1px dashed #CCCCCC;
    padding-bottom: 5px;
}

.meta-item {
    color: #666666;
    font-size: 12px;
}

.meta-divider {
    color: #CCCCCC;
    margin: 0 5px;
}

.article-summary {
    color: #333333;
    line-height: 1.5;
    font-size: 13px;
}

.article-actions {
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid #E6F0FF;
}

/* ============================================================
   文章详情
   ============================================================ */
.article-detail {
    background: #FFFFFF;
    padding: 20px;
    border: 1px solid #CCCCCC;
    margin-bottom: 20px;
}

.article-detail h1 {
    color: #003399;
    font-family: 'Times New Roman', 'SimSun', serif;
    font-size: 24px;
    margin-bottom: 10px;
    border-bottom: 1px solid #E6F0FF;
    padding-bottom: 10px;
}

.article-tags {
    margin: 10px 0;
}

.tag {
    display: inline-block;
    background: #E6F0FF;
    color: #003399;
    padding: 2px 8px;
    font-size: 12px;
    border: 1px solid #003399;
    margin-right: 5px;
    text-decoration: none;
}

.tag:hover {
    background: #003399;
    color: #FFFFFF;
    text-decoration: none;
}

.article-content {
    margin: 15px 0;
    line-height: 1.6;
    color: #333333;
    font-size: 14px;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border: 1px solid #003399;
    margin: 10px 0;
}

/* 代码块：复古深色背景 */
.article-content pre,
.article-content code {
    background: #F5F5F5;
    color: #333333;
    border: 1px solid #CCCCCC;
    font-family: 'Courier New', Courier, monospace;
    font-size: 13px;
}

.article-content pre {
    padding: 10px;
    overflow-x: auto;
    margin: 10px 0;
}

.article-content code {
    padding: 1px 4px;
}

.article-content pre code {
    background: none;
    border: none;
    padding: 0;
}

.deleted-badge {
    display: inline-block;
    background: #F5F5F5;
    color: #666666;
    padding: 3px 10px;
    border: 1px solid #CCCCCC;
    font-size: 12px;
    margin-bottom: 10px;
}

/* ============================================================
   评论区
   ============================================================ */
.comments-section {
    background: #FFFFFF;
    padding: 15px;
    border: 1px solid #CCCCCC;
    margin-top: 20px;
}

.comments-section h3 {
    color: #003399;
    font-size: 16px;
    border-bottom: 1px solid #E6F0FF;
    padding-bottom: 8px;
    margin-bottom: 10px;
}

.comment-item {
    padding: 10px;
    border-bottom: 1px solid #E6F0FF;
    margin-bottom: 5px;
}

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

.comment-meta {
    margin-bottom: 5px;
    font-size: 12px;
    color: #666666;
}

.comment-meta strong {
    color: #003399;
}

.comment-date {
    color: #999999;
    font-size: 11px;
}

.comment-content {
    color: #333333;
    line-height: 1.5;
    font-size: 13px;
}

.no-comments {
    color: #999999;
    text-align: center;
    padding: 20px 0;
    font-size: 13px;
}

.comment-form {
    margin-top: 15px;
    padding-top: 10px;
    border-top: 2px solid #003399;
}

/* ============================================================
   表单 - 复古风格，实线边框
   ============================================================ */
.form-group {
    margin-bottom: 12px;
}

.form-group label {
    display: block;
    margin-bottom: 4px;
    font-weight: bold;
    color: #003399;
    font-size: 13px;
}

.form-control {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid #999999;
    border-top: 1px solid #666666;
    border-left: 1px solid #666666;
    font-size: 13px;
    font-family: Arial, 'SimHei', sans-serif;
    background: #FFFFFF;
}

.form-control:focus {
    outline: none;
    border-color: #003399;
    background: #E6F0FF;
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

/* ============================================================
   按钮 - 蓝底白字，复古斜面效果
   ============================================================ */
.btn {
    display: inline-block;
    padding: 5px 15px;
    border: none;
    cursor: pointer;
    font-size: 13px;
    font-family: Arial, 'SimHei', sans-serif;
    text-decoration: none;
    text-align: center;
    /* 蓝底白字 */
    background: #003399;
    color: #FFFFFF !important;
    /* 复古：斜面bevel效果 */
    border-top: 2px solid #3366cc;
    border-left: 2px solid #3366cc;
    border-right: 2px solid #001a66;
    border-bottom: 2px solid #001a66;
}

.btn:hover {
    background: #0047AB;
    color: #FFFFFF !important;
    text-decoration: none;
}

.btn:active {
    border-top: 2px solid #001a66;
    border-left: 2px solid #001a66;
    border-right: 2px solid #3366cc;
    border-bottom: 2px solid #3366cc;
}

.btn:visited {
    color: #FFFFFF !important;
}

.btn-primary {
    background: #003399;
    color: #FFFFFF !important;
}

.btn-primary:hover {
    background: #0047AB;
    color: #FFFFFF !important;
    text-decoration: none;
}

.btn-primary:visited {
    color: #FFFFFF !important;
}

.btn-secondary {
    background: #003399;
    color: #FFFFFF !important;
    border-top: 2px solid #3366cc;
    border-left: 2px solid #3366cc;
    border-right: 2px solid #001a66;
    border-bottom: 2px solid #001a66;
}

.btn-secondary:hover {
    background: #0047AB;
    color: #FFFFFF !important;
    text-decoration: none;
}

.btn-secondary:visited {
    color: #FFFFFF !important;
}

.btn-danger {
    background: #CC0000;
    color: #FFFFFF !important;
}

.btn-danger:hover {
    background: #990000;
    color: #FFFFFF !important;
    text-decoration: none;
}

.btn-danger:visited {
    color: #FFFFFF !important;
}

.btn-success {
    background: #006600;
    color: #FFFFFF !important;
}

.btn-success:hover {
    background: #004d00;
    color: #FFFFFF !important;
    text-decoration: none;
}

.btn-success:visited {
    color: #FFFFFF !important;
}

.btn-sm {
    padding: 3px 10px;
    font-size: 12px;
}

.btn-block {
    display: block;
    width: 100%;
}

.text-center {
    text-align: center;
    margin: 20px 0;
}

/* ============================================================
   表格 - 复古表格式网格
   ============================================================ */
.table {
    width: 100%;
    background: #FFFFFF;
    border-collapse: collapse;
    margin-bottom: 15px;
    border: 1px solid #999999;
}

.table th,
.table td {
    padding: 8px 10px;
    text-align: left;
    border: 1px solid #CCCCCC;
}

.table th {
    background: #003399;
    color: #FFFFFF;
    font-weight: bold;
    font-size: 13px;
}

.table tbody tr:nth-child(even) {
    background: #F5F5F5;
}

.table tbody tr:hover {
    background: #E6F0FF;
}

.table-responsive {
    overflow-x: auto;
}

.content-cell {
    max-width: 250px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.empty-state {
    text-align: center;
    color: #999999;
    padding: 20px 0;
    font-size: 13px;
}

/* ============================================================
   分页 - 复古按钮式
   ============================================================ */
.pagination {
    text-align: center;
    margin: 20px 0;
    padding: 10px 0;
    border-top: 1px solid #CCCCCC;
}

.page-link {
    display: inline-block;
    padding: 4px 10px;
    background: #FFFFFF;
    color: #003399;
    border: 1px solid #999999;
    border-top: 1px solid #CCCCCC;
    border-left: 1px solid #CCCCCC;
    text-decoration: none;
    font-size: 12px;
    margin: 0 2px;
}

.page-link:hover {
    background: #E6F0FF;
    color: #003399;
    text-decoration: none;
}

.page-link:active {
    border-top: 1px solid #666666;
    border-left: 1px solid #666666;
    border-right: 1px solid #CCCCCC;
    border-bottom: 1px solid #CCCCCC;
}

.page-link.disabled {
    background: #F5F5F5;
    color: #999999;
    cursor: not-allowed;
    border-color: #CCCCCC;
}

.page-link.active {
    background: #003399;
    color: #FFFFFF;
    border-color: #003399;
}

.page-info {
    color: #666666;
    margin-left: 10px;
    font-size: 12px;
}

/* ============================================================
   搜索框
   ============================================================ */
.search-form {
    margin-bottom: 15px;
    padding: 10px;
    background: #F5F5F5;
    border: 1px solid #CCCCCC;
}

.search-form .form-control {
    width: 70%;
    display: inline-block;
}

.search-form .btn {
    margin-left: 5px;
}

/* ============================================================
   提示信息
   ============================================================ */
.alert {
    padding: 8px 12px;
    margin-bottom: 10px;
    font-size: 13px;
    border: 1px solid;
}

.alert-error {
    background: #FFF0F0;
    color: #CC0000;
    border-color: #CC0000;
}

.alert-success {
    background: #F0FFF0;
    color: #006600;
    border-color: #006600;
}

/* ============================================================
   验证码
   ============================================================ */
.captcha-group {
    margin-bottom: 10px;
}

.captcha-input {
    width: 120px;
    display: inline-block;
}

.captcha-image {
    height: 36px;
    cursor: pointer;
    border: 1px solid #999999;
    margin-left: 8px;
    vertical-align: middle;
}

/* ============================================================
   底部 Footer - 浅灰条，复古简洁
   ============================================================ */
.footer {
    background: #E6F0FF;
    color: #333333;
    text-align: center;
    padding: 15px 0;
    border-top: 2px solid #003399;
    font-size: 12px;
}

.footer a {
    color: #003399;
}

.footer a:hover {
    color: #001a66;
}

.footer-desc {
    margin-top: 5px;
    font-size: 12px;
    color: #666666;
    letter-spacing: 1px;
}

.footer-icp {
    margin-top: 5px;
    font-size: 11px;
    color: #999999;
}

.footer-icp a {
    color: #666666;
}

/* ============================================================
   关于页面
   ============================================================ */
.about-card {
    background: #FFFFFF;
    border: 1px solid #CCCCCC;
    padding: 15px 20px;
    margin-bottom: 15px;
}

.about-card h3 {
    color: #003399;
    font-family: 'Times New Roman', 'SimSun', serif;
    font-size: 18px;
    border-bottom: 1px solid #E6F0FF;
    padding-bottom: 8px;
    margin-bottom: 10px;
}

.about-content p {
    color: #333333;
    font-size: 14px;
    line-height: 1.6;
    margin: 5px 0;
}

.about-item {
    background: #F5F5F5;
    border: 1px solid #CCCCCC;
    padding: 10px;
    margin-bottom: 10px;
}

.about-item h4 {
    margin: 0 0 5px 0;
}

.about-item h4 a {
    color: #003399;
    text-decoration: underline;
}

.about-item h4 a:hover {
    color: #001a66;
    text-decoration: none;
}

.about-item p {
    color: #666666;
    font-size: 12px;
    margin: 0;
    line-height: 1.5;
}

/* ============================================================
   登录/注册页面 - 复古卡片
   ============================================================ */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #F5F5F5;
    padding: 20px 15px;
}

.auth-card {
    background: #FFFFFF;
    border: 2px solid #003399;
    padding: 20px;
    width: 100%;
    max-width: 400px;
}

.auth-header {
    text-align: center;
    margin-bottom: 15px;
    border-bottom: 2px solid #003399;
    padding-bottom: 10px;
}

.auth-header h2 {
    color: #003399;
    font-family: 'Times New Roman', 'SimSun', serif;
    font-size: 20px;
    margin-bottom: 5px;
}

.auth-header p {
    color: #666666;
    font-size: 12px;
}

.auth-footer {
    text-align: center;
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid #CCCCCC;
}

.auth-footer p {
    color: #666666;
    font-size: 12px;
}

/* ============================================================
   徽章/标签
   ============================================================ */
.badge {
    display: inline-block;
    padding: 2px 6px;
    font-size: 11px;
    border: 1px solid;
}

.badge-primary {
    background: #E6F0FF;
    color: #003399;
    border-color: #003399;
}

.badge-success {
    background: #F0FFF0;
    color: #006600;
    border-color: #006600;
}

.badge-danger {
    background: #FFF0F0;
    color: #CC0000;
    border-color: #CC0000;
}

/* ============================================================
   分类链接
   ============================================================ */
.category-link {
    color: #003399;
    text-decoration: underline;
    font-weight: normal;
}

.category-link:hover {
    color: #001a66;
    text-decoration: none;
}

/* ============================================================
   表格卡片容器
   ============================================================ */
.table-card {
    background: #FFFFFF;
    border: 1px solid #CCCCCC;
    padding: 15px;
    margin-bottom: 15px;
}

.table-header {
    margin-bottom: 10px;
    border-bottom: 1px solid #E6F0FF;
    padding-bottom: 8px;
}

/* ============================================================
   表单卡片容器
   ============================================================ */
.form-card {
    background: #FFFFFF;
    border: 1px solid #CCCCCC;
    padding: 15px;
    margin-bottom: 15px;
}

.form-actions {
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid #CCCCCC;
}

/* ============================================================
   Hero 区域 - 复古横幅
   ============================================================ */
.hero {
    text-align: center;
    padding: 30px 20px;
    background: #003399;
    color: #FFFFFF;
    margin-bottom: 20px;
    border: 2px solid #001a66;
}

.hero h1 {
    font-family: 'Times New Roman', 'SimSun', serif;
    font-size: 26px;
    margin-bottom: 10px;
    letter-spacing: 4px;
}

.hero p {
    font-size: 14px;
    color: #E6F0FF;
    letter-spacing: 2px;
}

/* ============================================================
   响应式设计 - 平板 (768px)
   ============================================================ */
@media (max-width: 768px) {
    .container {
        max-width: 100%;
        padding: 0 10px;
    }

    .navbar .container {
        flex-direction: column;
        padding: 8px 10px;
    }

    .navbar-menu {
        width: 100%;
        justify-content: center;
        margin-top: 5px;
    }

    .navbar-menu a,
    .dropdown-toggle {
        padding: 5px 8px;
        font-size: 12px;
    }

    .dropdown-menu {
        position: static;
        width: 100%;
        border: none;
        border-top: 1px solid #003399;
    }

    .dropdown-menu a {
        border-bottom: 1px solid #E6F0FF;
    }

    .hero {
        padding: 20px 15px;
    }

    .hero h1 {
        font-size: 22px;
    }

    .main-content {
        padding: 15px;
    }

    .article-detail {
        padding: 15px;
    }

    .article-detail h1 {
        font-size: 20px;
    }

    .search-form .form-control {
        width: 100%;
        margin-bottom: 5px;
    }

    .search-form .btn {
        width: 100%;
        margin-left: 0;
    }

    .table {
        font-size: 12px;
    }

    .table th,
    .table td {
        padding: 6px 8px;
    }

    .pagination {
        padding: 8px 0;
    }

    .page-link {
        padding: 3px 8px;
        font-size: 11px;
    }

    .page-info {
        display: block;
        margin-left: 0;
        margin-top: 5px;
    }

    .article-meta {
        font-size: 11px;
    }

    .meta-divider {
        display: none;
    }

    .captcha-group {
        display: flex;
        flex-direction: column;
    }

    .captcha-image {
        margin-left: 0;
        margin-top: 5px;
    }

    .about-card {
        padding: 12px 15px;
    }

    .about-content p {
        font-size: 13px;
    }
}

/* ============================================================
   响应式设计 - 手机 (375px)
   ============================================================ */
@media (max-width: 480px) {
    body {
        font-size: 13px;
    }

    .header h1 {
        font-size: 22px;
        letter-spacing: 2px;
    }

    .header .slogan {
        font-size: 11px;
    }

    .navbar-menu {
        flex-direction: column;
        align-items: stretch;
    }

    .navbar-menu a,
    .dropdown-toggle {
        text-align: center;
        padding: 8px;
    }

    .navbar-menu span {
        text-align: center;
        padding: 5px 0;
    }

    .hero h1 {
        font-size: 20px;
    }

    .hero p {
        font-size: 12px;
    }

    .section-title h2,
    .page-header h2 {
        font-size: 18px;
    }

    .article-card,
    .article-item {
        padding: 10px;
    }

    .article-card h3,
    .article-item h3 {
        font-size: 14px;
    }

    .btn {
        padding: 6px 12px;
        font-size: 12px;
    }

    .btn-sm {
        padding: 4px 8px;
        font-size: 11px;
    }

    .auth-card {
        padding: 15px;
    }

    .auth-header h2 {
        font-size: 18px;
    }

    .footer {
        font-size: 11px;
        padding: 12px 0;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn {
        width: 100%;
        margin-bottom: 5px;
    }
}