.btn {
    display: inline-block;
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    background: #f0f0f0;
    transition: all 0.2s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn:hover { opacity: 0.85; }

.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 20px;
}

.tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    background: #f0f0f0;
    margin-right: 4px;
    color: var(--text-secondary);
}

.search-box {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.search-box input, .search-box select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
}
.search-box input { flex: 1; min-width: 200px; }

/* 编辑器 */
.editor-split {
    display: flex;
    gap: 20px;
    height: 500px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
#md-input, #md-preview {
    flex: 1;
    padding: 15px;
    overflow-y: auto;
}
#md-input {
    border: none;
    border-right: 1px solid var(--border);
    resize: none;
    font-family: monospace;
    font-size: 14px;
    outline: none;
}
#md-preview { background: #fafafa; }

/* 编辑器预览区空状态 */
#md-preview {
    background: #fafafa;
    min-height: 200px;
}
.preview-placeholder {
    user-select: none;
}

/* 表单 */
.form-group { margin-bottom: 15px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: bold; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
}
.full-width { width: 100%; padding: 10px; border: 1px solid var(--border); border-radius: 4px; }

/* 文章列表 */
.article-item { cursor: pointer; transition: transform 0.2s; }
.article-item:hover { transform: translateX(5px); }
.article-item a { font-size: 1.1em; font-weight: bold; }
.article-item .tags { margin: 8px 0; }
.article-item small { color: var(--text-secondary); }

/* 分页 */
#pagination { margin-top: 20px; }
#pagination .btn { margin-right: 5px; min-width: 36px; }
#pagination .btn.active { background: var(--primary); color: #fff; }

/* 详情页 */
.meta { color: var(--text-secondary); margin: 10px 0; font-size: 0.9em; }
.actions { margin-top: 20px; }
.actions .btn { margin-right: 10px; }

/* 统计卡片 */
.stats-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-bottom: 20px; }
.stats-card { text-align: center; padding: 20px; }
.stats-card .number { font-size: 2em; font-weight: bold; color: var(--primary); }
.stats-card .label { color: var(--text-secondary); margin-top: 5px; }

/* 移动端编辑器 */
@media (max-width: 768px) {
    .editor-split { flex-direction: column; height: 600px; }
    #md-input { border-right: none; border-bottom: 1px solid var(--border); height: 50%; }
    #md-preview { height: 50%; }
    .stats-row { grid-template-columns: 1fr; }
    .search-box { flex-direction: column; }
}

/* ========== 移动端适配优化（P2） ========== */

@media (max-width: 768px) {
    .editor-split {
        flex-direction: column;
        height: 70vh;
        min-height: 400px;
    }
    #md-input {
        border-right: none;
        border-bottom: 1px solid var(--border);
        height: 50%;
        font-size: 16px;
    }
    #md-preview {
        height: 50%;
        font-size: 14px;
        padding: 10px;
    }
    .stats-row {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
    .stats-card {
        padding: 15px;
    }
    .stats-card .number {
        font-size: 1.6em;
    }
    .search-box {
        flex-direction: column;
        gap: 8px;
    }
    .search-box input, .search-box select {
        width: 100%;
        font-size: 16px;
    }
    .toolbar-btn {
        padding: 8px 12px;
        font-size: 14px;
        min-height: 44px;
        min-width: 44px;
    }
    .card {
        padding: 15px;
    }
    .form-group input, .form-group select, .form-group textarea {
        font-size: 16px;
    }
    .actions .btn {
        display: inline-block;
        margin-bottom: 8px;
        width: 100%;
        text-align: center;
    }
}