/* ===== 登录页 ===== */
.login-body {
    background: #f0f2f5;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
}
.login-box {
    width: 380px;
    background: #fff;
    border-radius: 6px;
    box-shadow: 0 2px 12px rgba(0,0,0,.1);
    padding: 30px;
}
.login-header {
    text-align: center;
    margin-bottom: 25px;
}
.login-header h3 {
    margin: 0;
    color: #333;
    font-size: 20px;
}
.login-form .form-group {
    margin-bottom: 18px;
}
.login-form .btn {
    margin-top: 5px;
}

/* ===== 主布局 ===== */
body {
    margin: 0;
    font-family: "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: #f0f2f5;
}
.admin-navbar {
    min-height: 50px;
    border-radius: 0;
}
.admin-navbar .navbar-brand {
    font-size: 16px;
    font-weight: bold;
}
.navbar-user {
    padding: 8px 15px;
    color: #9d9d9d;
}
.navbar-user span {
    margin-right: 10px;
}
.navbar-user .btn-logout {
    color: #9d9d9d;
    text-decoration: none;
}
.navbar-user .btn-logout:hover {
    color: #fff;
}

.admin-wrapper {
    display: flex;
    margin-top: 50px;
    min-height: calc(100vh - 50px);
}

/* ===== 侧边栏 ===== */
.admin-sidebar {
    width: 200px;
    background: #fff;
    border-right: 1px solid #e8e8e8;
    padding: 15px 0;
    flex-shrink: 0;
}
.admin-sidebar .nav > li > a {
    padding: 10px 20px;
    color: #555;
    border-radius: 0;
}
.admin-sidebar .nav > li > a:hover {
    background: #f5f5f5;
}
.admin-sidebar .nav > li.active > a,
.admin-sidebar .nav > li.active > a:hover,
.admin-sidebar .nav > li.active > a:focus {
    background: #337ab7;
    color: #fff;
}
.admin-sidebar .nav > li > a > i {
    margin-right: 8px;
    width: 16px;
    text-align: center;
}

/* ===== 主内容区 ===== */
.admin-main {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

/* ===== 通用组件 ===== */
.page-header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}
.page-header-bar h4 {
    margin: 0;
}
.search-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
}
.search-bar .form-control {
    width: 250px;
}
.table td, .table th {
    vertical-align: middle !important;
}
.status-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 12px;
    color: #fff;
}
.status-draft { background: #999; }
.status-published { background: #5cb85c; }
.btn-action { margin: 0 2px; }

/* 分页 */
.pager-bar {
    text-align: center;
    margin-top: 15px;
}
.pager-bar .pagination {
    margin: 0;
}

/* 表单 */
.form-panel .form-group {
    margin-bottom: 15px;
}
.form-panel label {
    font-weight: normal;
}
.img-preview {
    max-width: 200px;
    max-height: 150px;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 3px;
    margin-top: 5px;
}
.img-preview-sm {
    max-width: 80px;
    max-height: 60px;
    border: 1px solid #ddd;
    border-radius: 3px;
}

/* 统计卡片 */
.stat-cards {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.stat-card {
    flex: 1;
    min-width: 180px;
    background: #fff;
    border-radius: 6px;
    padding: 20px;
    box-shadow: 0 1px 4px rgba(0,0,0,.08);
    text-align: center;
}
.stat-card .stat-num {
    font-size: 36px;
    font-weight: bold;
    color: #337ab7;
}
.stat-card .stat-label {
    color: #999;
    margin-top: 5px;
}

/* UEditor 容器 */
.ueditor-container {
    margin-bottom: 15px;
}

/* 响应式 */
@media (max-width: 768px) {
    .admin-sidebar { width: 160px; }
    .search-bar .form-control { width: 150px; }
}