/* 后台管理样式 */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
    background: rgba(248, 249, 250, 0.3);
}

/* 侧边栏 */
.admin-sidebar {
    width: 250px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.admin-logo {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(224, 224, 224, 0.5);
    background: rgba(52, 152, 219, 0.1);
}

.admin-logo h2 {
    margin: 0;
    font-family: '甜甜圈海报字体', sans-serif;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.admin-nav {
    padding: 1rem 0;
}

.admin-nav-item {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.admin-nav-item:hover {
    background: rgba(52, 152, 219, 0.1);
    color: var(--primary-color);
}

.admin-nav-item.active {
    background: rgba(52, 152, 219, 0.15);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    font-weight: 500;
}

/* 主内容区 */
.admin-main {
    flex: 1;
    margin-left: 250px;
    min-height: 100vh;
}

.admin-header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 1.5rem 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-header h1 {
    margin: 0;
    font-family: '甜甜圈海报字体', sans-serif;
    font-size: 1.5rem;
    color: var(--text-color);
}

.admin-content {
    padding: 2rem;
}

/* 表格 */
.admin-table-wrapper {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table thead {
    background: rgba(52, 152, 219, 0.1);
}

.admin-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-color);
    border-bottom: 2px solid rgba(224, 224, 224, 0.5);
}

.admin-table td {
    padding: 1rem;
    border-bottom: 1px solid rgba(224, 224, 224, 0.3);
}

.admin-table tbody tr:hover {
    background: rgba(52, 152, 219, 0.05);
}

.admin-table tbody tr.deleted {
    opacity: 0.6;
    background: rgba(231, 76, 60, 0.05);
}

.admin-table tbody tr.deleted td {
    text-decoration: line-through;
}

/* 徽章 */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    margin-right: 0.5rem;
}

.badge-success {
    background: rgba(46, 204, 113, 0.2);
    color: #27ae60;
}

.badge-danger {
    background: rgba(231, 76, 60, 0.2);
    color: #c0392b;
}

.badge-warning {
    background: rgba(241, 196, 15, 0.2);
    color: #f39c12;
}

.badge-primary {
    background: rgba(52, 152, 219, 0.2);
    color: #2980b9;
}

/* 按钮 */
.btn-primary,
.btn-secondary,
.btn-edit,
.btn-delete {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: #2980b9;
}

.btn-secondary {
    background: rgba(108, 117, 125, 0.8);
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.btn-edit {
    background: rgba(52, 152, 219, 0.2);
    color: var(--primary-color);
    padding: 0.375rem 1rem;
    margin-right: 0.5rem;
}

.btn-edit:hover {
    background: rgba(52, 152, 219, 0.3);
}

.btn-delete {
    background: rgba(231, 76, 60, 0.2);
    color: #e74c3c;
    padding: 0.375rem 1rem;
}

.btn-delete:hover {
    background: rgba(231, 76, 60, 0.3);
}

/* 表单 */
.article-form {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

/* 编辑器工具栏 */
.editor-toolbar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0.75rem 0;
    flex-wrap: wrap;
}

.btn-small {
    padding: 0.4rem 0.9rem;
    font-size: 0.85rem;
    border-radius: 6px;
}

.editor-toolbar-hint {
    color: var(--text-light);
    font-size: 0.85rem;
}

.editor-toolbar-hint code {
    padding: 0.15rem 0.35rem;
    border-radius: 4px;
    background: rgba(27, 31, 35, 0.06);
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input[type="text"],
.form-group input[type="url"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid rgba(224, 224, 224, 0.5);
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.8);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
    background: white;
}

.form-group textarea {
    resize: vertical;
    min-height: 300px;
    font-family: 'Courier New', monospace;
}

.form-group input[type="checkbox"] {
    margin-right: 0.5rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(224, 224, 224, 0.5);
}

/* 提示信息 */
.alert {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
}

.alert-success {
    background: rgba(46, 204, 113, 0.2);
    color: #27ae60;
    border: 1px solid rgba(46, 204, 113, 0.3);
}

.alert-error {
    background: rgba(231, 76, 60, 0.2);
    color: #c0392b;
    border: 1px solid rgba(231, 76, 60, 0.3);
}

/* 登录页面 */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 200px);
    padding: 2rem;
}

.login-box {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    padding: 2rem 2.5rem;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
}

.login-title {
    text-align: center;
    margin-bottom: 1.75rem;
    font-family: '甜甜圈海报字体', sans-serif;
    color: var(--primary-color);
    font-size: 1.4rem;
    font-weight: 600;
}

.login-form .form-group {
    margin-bottom: 1.1rem;
}

.login-form label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-color);
}

.login-form input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid rgba(224, 224, 224, 0.5);
    border-radius: 4px;
    font-size: 0.95rem;
    box-sizing: border-box;
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.btn-login {
    width: 100%;
    padding: 0.75rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-login:hover {
    background: #2980b9;
}

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
}

.login-footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.login-footer a:hover {
    text-decoration: underline;
}

.text-center {
    text-align: center;
}

.actions {
    white-space: nowrap;
}

/* 响应式 */
@media (max-width: 768px) {
    /* 手机端改为“侧边栏置顶 + 主内容不缩进”，避免 fixed+margin-left 挤压 */
    .admin-wrapper {
        flex-direction: column;
    }

    .admin-sidebar {
        position: relative;
        width: 100%;
        height: auto;
        box-shadow: none;
        border-bottom: 1px solid rgba(224, 224, 224, 0.5);
    }

    .admin-main {
        margin-left: 0;
        width: 100%;
    }

    .admin-header {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start;
        padding: 1rem 1rem;
    }

    .admin-content {
        padding: 1rem;
    }

    /* 表格在手机端横向滚动 */
    .admin-table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .admin-table {
        min-width: 720px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}