/* PRRS 知识图谱页面专用样式 */

/* ========== 主区域 ========== */
.kg-page .kg-main {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    gap: var(--panel-gap);
    padding: var(--panel-gap);
    min-height: 0;
    overflow: hidden;
}

/* 手机端允许滚动 */
@media (max-width: 768px) {
    .kg-page .kg-main {
        overflow: visible;
    }
}

/* ========== 顶部统计卡片 ========== */
.kg-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    flex-shrink: 0;
}

.kg-stat-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 14px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
    position: relative;
    overflow: hidden;
}

.kg-stat-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--accent-primary);
}

.kg-stat-card.primary::before { background: #3b82f6; }
.kg-stat-card.accent::before  { background: #06b6d4; }
.kg-stat-card.info::before    { background: #6366f1; }
.kg-stat-card.success::before { background: #10b981; }

.kg-stat-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}

.kg-stat-card .summary-icon {
    font-size: 22px;
    line-height: 1;
    margin-bottom: 6px;
}

.kg-stat-card .summary-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.kg-stat-card strong {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.1;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.kg-stat-card.primary strong { background: linear-gradient(135deg, #3b82f6, #60a5fa); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.kg-stat-card.accent strong  { background: linear-gradient(135deg, #06b6d4, #22d3ee); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.kg-stat-card.info strong    { background: linear-gradient(135deg, #6366f1, #818cf8); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.kg-stat-card.success strong { background: linear-gradient(135deg, #10b981, #34d399); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

.kg-stat-card small {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 6px;
    line-height: 1.4;
}

/* ========== 可视化主面板 ========== */
.kg-viz-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
}

.kg-viz-panel .panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.kg-viz-hint {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 400;
}

.kg-viz-body {
    flex: 1;
    min-height: 0;
    max-height: none;          /* 覆盖全局 .panel-body 的 420px 限制 */
    height: 100%;
    padding: 0;
    overflow: hidden;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    background: #03050c;
}

.kg-viz-body iframe {
    width: 100%;
    height: 100%;
    min-height: 60vh;
    border: 0;
    display: block;
    background: #03050c;
}

/* ========== 手机端响应式 ========== */
@media (max-width: 768px) {
    .kg-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .kg-stat-card {
        padding: 10px 12px;
    }

    .kg-stat-card strong {
        font-size: 22px;
    }

    .kg-viz-body iframe {
        min-height: 70vh;
    }

    .kg-viz-panel .panel-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
}