/* ============================================================
   system.css - 系统空间面板样式
   ============================================================ */

.modal-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    animation: fadeIn 0.3s ease-out;
}

/* --- 系统空间面板 --- */
.system-space-panel {
    width: 92%;
    max-width: 500px;
    /* V3.2.4.2 修复：自适应高度 + 滚动条（PC 浏览器缩放友好） */
    height: auto;
    min-height: 320px;
    max-height: 88vh;            /* 跟随视口高度 */
    background: linear-gradient(135deg, #1a1a1a 0%, #2a1a1a 100%);
    border: 2px solid var(--secondary-yellow);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.4s ease-out;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}
/* PC 浏览器宽屏：放大面板 */
@media (min-width: 768px) and (min-height: 700px) {
    .system-space-panel {
        max-width: 560px;
        max-height: 80vh;
    }
}
/* PC 浏览器小屏（高度 < 600px）：进一步压缩 */
@media (max-height: 600px) {
    .system-space-panel {
        max-height: 96vh;
        min-height: 280px;
    }
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: rgba(139, 26, 26, 0.4);
    border-bottom: 2px solid var(--secondary-yellow);
}
.panel-title {
    font-size: 18px;
    font-weight: bold;
    color: var(--secondary-yellow);
}
.panel-close {
    font-size: 22px;
    cursor: pointer;
    color: var(--text-primary);
    opacity: 0.8;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s;
}
.panel-close:hover {
    background: rgba(255,255,255,0.1);
    opacity: 1;
}

.panel-tabs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: rgba(0,0,0,0.3);
}
.panel-tabs .tab {
    padding: 12px;
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}
.panel-tabs .tab.active {
    color: var(--secondary-yellow);
    border-bottom-color: var(--secondary-yellow);
    background: rgba(212, 165, 116, 0.1);
}
.panel-tabs .tab:hover { color: var(--text-primary); }

.panel-content {
    /* V3.2.4.2 修复：min-height: 0 是 flex 容器滚动条关键 */
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 16px;
    /* 自定义滚动条（移动端 + PC 浏览器都可见） */
    scrollbar-width: thin;
    scrollbar-color: var(--secondary-yellow) rgba(255,255,255,0.1);
}
.panel-content::-webkit-scrollbar { width: 6px; }
.panel-content::-webkit-scrollbar-track { background: rgba(255,255,255,0.05); }
.panel-content::-webkit-scrollbar-thumb {
    background: var(--secondary-yellow);
    border-radius: 3px;
}

/* --- 技能卡片 --- */
.skill-card {
    background: rgba(255,255,255,0.05);
    border: 2px solid var(--border);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 10px;
    position: relative;
}
.skill-card.lv1 { border-color: #888; }
.skill-card.lv2 { border-color: #4A90E2; box-shadow: 0 0 8px rgba(74, 144, 226, 0.3); }
.skill-card.lv3 { border-color: var(--secondary-yellow); box-shadow: 0 0 12px rgba(212, 165, 116, 0.5); }
.skill-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}
.skill-name {
    font-size: 15px;
    font-weight: bold;
    color: var(--text-primary);
}
.skill-level {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 10px;
    background: var(--primary-red);
}
.skill-card.lv1 .skill-level { background: #888; }
.skill-card.lv2 .skill-level { background: #4A90E2; }
.skill-card.lv3 .skill-level { background: var(--secondary-yellow); color: var(--bg-dark); }
.skill-desc {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}
.skill-meta {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-tertiary);
    margin-bottom: 10px;
}
.skill-energy {
    color: var(--secondary-yellow);
    font-weight: bold;
}
.skill-uses {
    color: var(--success);
}
.skill-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-red-light) 100%);
    color: #fff;
    padding: 8px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: bold;
    transition: all 0.2s;
}
.skill-btn:disabled {
    background: var(--bg-light);
    color: var(--text-tertiary);
}
.skill-btn:not(:disabled):hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(139, 26, 26, 0.3);
}

/* --- 系统能量条 --- */
.energy-bar {
    padding: 12px 16px;
    background: rgba(0,0,0,0.5);
    border-top: 1px solid var(--border);
}
.energy-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}
.energy-label #energy-current { color: var(--secondary-yellow); font-weight: bold; }
.energy-track {
    width: 100%;
    height: 8px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    overflow: hidden;
}
.energy-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success) 0%, #27AE60 100%);
    border-radius: 4px;
    transition: width 0.5s ease-out;
}
.energy-fill.low { background: linear-gradient(90deg, var(--error) 0%, #C0392B 100%); }