/* ========================================================
   sandbox.css — A/B/C 沙盘 / AI 方案工作台 / 沙盘三栏
   来源：V22 HTML <style> 拆分 — 不改逻辑/不重构
   ======================================================== */

  /* ===== A/B 沙盘模式 ===== */
  .sandbox-mode {
    height: calc(100vh - 64px);
    display: none;
    flex-direction: column;
    background: var(--bg-deep);
    overflow-y: auto;
  }
  .sandbox-mode.show { display: flex; }
  
  .sandbox-header {
    background: var(--bg-panel-2);
    padding: 14px 24px;
    border-bottom: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center;
  }
  .sandbox-title {
    font-size: 14px; font-weight: 600; color: var(--text-primary);
  }
  .sandbox-title strong { color: var(--accent-cyan); margin-left: 8px; }
  .sandbox-question {
    background: var(--bg-panel);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    padding: 8px 14px;
    font-size: 12px;
    width: 480px;
    font-family: inherit;
  }
  
  .sandbox-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--border);
    overflow: hidden;
    min-height: 480px;
    flex-shrink: 0;
  }
  .sandbox-side {
    background: var(--bg-panel);
    display: flex; flex-direction: column;
    overflow: hidden;
  }
  .sandbox-side-header {
    padding: 12px 18px;
    border-bottom: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center;
  }
  .plan-tag {
    display: flex; align-items: center; gap: 8px;
  }
  .plan-letter {
    width: 28px; height: 28px;
    background: var(--accent-cyan);
    color: #001a26;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700;
    font-size: 14px;
    font-family: "Roboto Mono", monospace;
  }
  .plan-letter.b { background: var(--accent-amber); color: #1a1004; }
  .plan-name { font-size: 14px; font-weight: 600; }
  
  .sandbox-map {
    flex: 1;
    position: relative;
    background: radial-gradient(ellipse at 50% 50%, #0a1828 0%, #050a14 100%);
    overflow: hidden;
  }
  .sandbox-map svg { width: 100%; height: 100%; }
  
  .sandbox-stats {
    background: var(--bg-panel-2);
    padding: 14px 18px;
    border-top: 1px solid var(--border);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
  }
  .sandbox-stat-item {
    text-align: center;
  }
  .sandbox-stat-label {
    font-size: 10px; color: var(--text-tertiary);
    letter-spacing: 1px; margin-bottom: 4px;
  }
  .sandbox-stat-val {
    font-size: 18px; font-weight: 600;
    font-family: "Roboto Mono", monospace;
  }
  .sandbox-stat-val.win { color: var(--risk-green); }
  .sandbox-stat-val.lose { color: var(--risk-red); }
  .sandbox-stat-val.neutral { color: var(--text-primary); }
  
  .sandbox-conclusion {
    background: var(--bg-panel-2);
    border-top: 1px solid var(--border);
    padding: 14px 24px;
    display: block;
  }
  /* A/B/C 三方案量化对比表 */
  .abc-compare-table {
    display: grid;
    grid-template-columns: 140px 1fr 1fr 1fr;
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    margin-bottom: 4px;
  }
  .abc-cell {
    background: var(--bg-panel-2);
    padding: 8px 12px;
    font-size: 11.5px;
    color: var(--text-primary);
    font-family: "Roboto Mono", monospace;
  }
  .abc-cell.abc-header {
    background: var(--bg-card);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 11px;
    letter-spacing: 0.5px;
    text-align: center;
    padding: 9px 8px;
    font-family: inherit;
  }
  .abc-cell.abc-header.abc-a { background: rgba(231, 76, 60, 0.15); color: var(--risk-red); }
  .abc-cell.abc-header.abc-b { background: rgba(255, 181, 46, 0.15); color: var(--accent-amber); }
  .abc-cell.abc-header.abc-c { background: rgba(46, 204, 113, 0.18); color: var(--risk-green); }
  .abc-cell.abc-label {
    background: var(--bg-panel);
    color: var(--text-tertiary);
    font-size: 11px;
    letter-spacing: 0.5px;
    font-family: inherit;
  }
  .abc-cell.abc-good { color: var(--risk-green); font-weight: 600; }
  .abc-cell.abc-warn { color: var(--accent-amber); }
  .abc-cell.abc-bad { color: var(--risk-red); }
  
  .sandbox-recommend {
    flex: 1;
    font-size: 13px;
    color: var(--text-primary);
    line-height: 1.6;
  }
  .sandbox-recommend strong { color: var(--accent-cyan); }
  .sandbox-recommend .recommend-tag {
    display: inline-block;
    background: var(--risk-green);
    color: #003315;
    padding: 2px 10px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    margin-right: 8px;
  }

  /* ===== V3.1 待生成态 / 生成动画 / 人工确认提示 ===== */
  
  /* === 通用：人工确认提示条（出现在 AI 推荐附近） === */
  .ai-disclaimer {
    background: rgba(168, 85, 247, 0.06);
    border-left: 3px solid #a855f7;
    padding: 8px 12px;
    margin: 10px 0;
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.6;
    letter-spacing: 0.3px;
  }
  .ai-disclaimer strong { color: #c084fc; }
  .ai-disclaimer.compact {
    padding: 6px 10px;
    font-size: 10.5px;
    margin: 6px 0;
  }

  /* === 场景推演 · 待研判默认态（idle） === */
  .live-idle-overlay {
    position: absolute;
    inset: 0;
    z-index: 50;
    background: rgba(5, 10, 20, 0.94);
    backdrop-filter: blur(6px);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    overflow-y: auto;
  }
  .live-idle-overlay.show { display: flex; }
  .live-idle-card {
    width: 100%;
    max-width: 720px;
    background: linear-gradient(135deg, var(--bg-panel-2) 0%, var(--bg-panel-3) 100%);
    border: 1px solid var(--border-light);
    padding: 28px 32px 24px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
  }
  .live-idle-tag {
    display: inline-block;
    background: linear-gradient(90deg, var(--accent-cyan), #0099ff);
    color: #001a26;
    padding: 3px 10px;
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
  }
  .live-idle-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 1px;
    margin-bottom: 6px;
  }
  .live-idle-sub {
    font-size: 12.5px;
    color: var(--text-secondary);
    margin-bottom: 22px;
    line-height: 1.6;
  }
  .live-idle-input-wrap {
    position: relative;
    margin-bottom: 14px;
  }
  .live-idle-input {
    width: 100%;
    background: var(--bg-deep);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    padding: 12px 130px 12px 14px;
    font-size: 13px;
    font-family: inherit;
    line-height: 1.5;
    resize: vertical;
    min-height: 60px;
    transition: border-color 0.2s;
  }
  .live-idle-input:focus {
    outline: none;
    border-color: var(--accent-cyan);
  }
  .live-idle-submit {
    position: absolute;
    right: 8px;
    bottom: 8px;
    background: linear-gradient(135deg, #a855f7, #7c3aed);
    color: white;
    border: none;
    padding: 8px 16px;
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.15s;
  }
  .live-idle-submit:hover { box-shadow: 0 0 14px rgba(168, 85, 247, 0.5); }
  .live-idle-section-title {
    font-size: 11px;
    color: var(--text-tertiary);
    letter-spacing: 1.5px;
    margin: 16px 0 10px;
  }
  .live-idle-prompts {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 6px;
  }
  .live-idle-prompt {
    background: var(--bg-panel);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    padding: 6px 12px;
    font-size: 11.5px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.15s;
  }
  .live-idle-prompt:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    background: rgba(0, 212, 255, 0.06);
  }
  .live-idle-prompt.hot {
    border-color: rgba(168, 85, 247, 0.5);
    color: #c084fc;
    background: rgba(168, 85, 247, 0.06);
  }
  .live-idle-prompt.hot:hover {
    border-color: #a855f7;
    background: rgba(168, 85, 247, 0.12);
    box-shadow: 0 0 10px rgba(168, 85, 247, 0.25);
  }
  .live-idle-capabilities {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-top: 18px;
  }
  .live-cap-card {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent-cyan);
    padding: 10px 12px;
  }
  .live-cap-card:nth-child(2) { border-left-color: var(--accent-amber); }
  .live-cap-card:nth-child(3) { border-left-color: var(--risk-green); }
  .live-cap-card:nth-child(4) { border-left-color: #a855f7; }
  .live-cap-icon {
    font-size: 16px;
    margin-bottom: 4px;
    display: block;
  }
  .live-cap-title {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 3px;
    letter-spacing: 0.3px;
  }
  .live-cap-desc {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.5;
  }

  /* === 预演沙盘 · 待生成态 === */
  .sb-empty-state {
    flex: 1;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    background: var(--bg-deep);
    overflow-y: auto;
  }
  .sb-empty-state.show { display: flex; }
  .sb-empty-card {
    width: 100%;
    max-width: 1100px;
    background: var(--bg-panel-2);
    border: 1px solid var(--border-light);
    padding: 28px 36px 24px;
  }
  .sb-empty-icon {
    font-size: 36px;
    color: var(--text-tertiary);
    margin-bottom: 12px;
    opacity: 0.6;
  }
  .sb-empty-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 1px;
    margin-bottom: 8px;
  }
  .sb-empty-desc {
    font-size: 12.5px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
  }
  .sb-empty-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: 22px;
    text-align: left;
  }
  .sb-empty-row {
    background: var(--bg-panel);
    border-left: 2px solid var(--border-light);
    padding: 8px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .sb-empty-row .lbl {
    font-size: 11px;
    color: var(--text-tertiary);
    letter-spacing: 0.5px;
  }
  .sb-empty-row .val {
    font-size: 11.5px;
    color: var(--text-tertiary);
    font-style: italic;
  }
  .sb-empty-section {
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px dashed var(--border);
  }
  .sb-empty-section-title {
    font-size: 11px;
    color: var(--text-tertiary);
    letter-spacing: 1px;
    margin-bottom: 8px;
  }
  .sb-empty-pending {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 18px;
  }
  .sb-empty-pending-item {
    background: var(--bg-panel);
    border: 1px dashed var(--border-light);
    padding: 10px 8px;
    text-align: center;
    color: var(--text-tertiary);
  }
  .sb-empty-pending-item .pi-name {
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 3px;
    color: var(--text-secondary);
  }
  .sb-empty-pending-item .pi-status {
    font-size: 10.5px;
    color: var(--text-tertiary);
    font-style: italic;
  }
  .sb-empty-cta {
    background: linear-gradient(135deg, #a855f7, #7c3aed);
    color: white;
    border: none;
    padding: 10px 24px;
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.15s;
  }
  .sb-empty-cta:hover { box-shadow: 0 0 16px rgba(168, 85, 247, 0.5); }
  
  /* === V3.2 沙盘 idle 升级为"AI方案生成工作台" === */
  .sb-workbench-tag {
    display: inline-block;
    background: linear-gradient(90deg, #a855f7, #7c3aed);
    color: white;
    padding: 3px 10px;
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
  }
  .sb-workbench-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 1.5px;
    margin-bottom: 6px;
    text-align: left;
  }
  .sb-workbench-sub {
    font-size: 12.5px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    text-align: left;
  }
  .sb-workbench-input-row {
    display: flex;
    gap: 10px;
    margin-bottom: 12px;
  }
  .sb-workbench-input {
    flex: 1;
    min-width: 0;          /* V20: 760 → 0，允许 flex 子项收缩，防止内容溢出/截断 */
    box-sizing: border-box;
    background: var(--bg-deep);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    padding: 12px 14px;
    font-size: 13px;
    font-family: inherit;
    line-height: 1.5;
    resize: vertical;
    min-height: 56px;
    transition: border-color 0.2s;
    /* V20: 长文本自动换行，不再单行裁切 */
    white-space: pre-wrap;
    word-break: break-all;
  }
  .sb-workbench-input:focus {
    outline: none;
    border-color: #a855f7;
  }
  .sb-workbench-submit {
    background: linear-gradient(135deg, #a855f7, #7c3aed);
    color: white;
    border: none;
    padding: 0 22px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.15s;
    flex-shrink: 0;
    min-width: 140px;
  }
  .sb-workbench-submit:hover { box-shadow: 0 0 18px rgba(168, 85, 247, 0.55); }
  .sb-workbench-prompts-label {
    font-size: 11px;
    color: var(--text-tertiary);
    letter-spacing: 1.5px;
    margin: 14px 0 8px;
  }
  .sb-workbench-prompts {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 18px;
  }
  .sb-workbench-prompt {
    background: var(--bg-panel);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    padding: 6px 12px;
    font-size: 11.5px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.15s;
  }
  .sb-workbench-prompt:hover {
    border-color: #a855f7;
    color: #c084fc;
    background: rgba(168, 85, 247, 0.06);
  }
  .sb-workbench-prompt.hot {
    border-color: rgba(168, 85, 247, 0.5);
    color: #c084fc;
    background: rgba(168, 85, 247, 0.06);
  }
  .sb-workbench-prompt.hot:hover {
    background: rgba(168, 85, 247, 0.14);
    box-shadow: 0 0 10px rgba(168, 85, 247, 0.3);
  }
  .sb-status-blocks {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px dashed var(--border);
  }
  .sb-status-block {
    background: var(--bg-panel);
    border-left: 2px solid var(--border-light);
    padding: 10px 14px;
  }
  .sb-status-block-title {
    font-size: 11px;
    color: var(--text-tertiary);
    letter-spacing: 1px;
    margin-bottom: 8px;
  }
  .sb-status-block-row {
    display: flex;
    justify-content: space-between;
    font-size: 11.5px;
    padding: 4px 0;
    border-bottom: 1px dashed rgba(122, 147, 184, 0.15);
  }
  .sb-status-block-row:last-child { border-bottom: none; }
  .sb-status-block-row .lbl { color: var(--text-secondary); }
  .sb-status-block-row .val {
    color: var(--text-tertiary);
    font-style: italic;
    font-size: 11px;
  }
  /* V3.7: 预演沙盘场景识别预填态 */
  .recog-value.pending {
    color: var(--text-tertiary);
    font-style: italic;
  }
  .recog-value.done {
    color: var(--accent-cyan);
    font-style: normal;
    font-weight: 500;
  }

  /* === 预演沙盘 · 生成动画态 === */
  .sb-generating-state {
    flex: 1;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    background: var(--bg-deep);
  }
  .sb-generating-state.show { display: flex; }
  .sb-gen-card {
    width: 100%;
    max-width: 620px;
    background: linear-gradient(135deg, var(--bg-panel-2) 0%, var(--bg-panel-3) 100%);
    border: 1px solid #a855f7;
    box-shadow: 0 0 30px rgba(168, 85, 247, 0.25);
    padding: 28px 32px;
  }
  .sb-gen-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px dashed var(--border-light);
  }
  .sb-gen-spin {
    width: 22px;
    height: 22px;
    border: 2px solid rgba(168, 85, 247, 0.2);
    border-top-color: #c084fc;
    border-radius: 50%;
    animation: spin 0.9s linear infinite;
  }
  @keyframes spin { to { transform: rotate(360deg); } }
  .sb-gen-title-block { flex: 1; }
  .sb-gen-title {
    font-size: 14px;
    color: #c084fc;
    font-weight: 600;
    letter-spacing: 1px;
  }
  .sb-gen-sub {
    font-size: 11px;
    color: var(--text-tertiary);
    margin-top: 2px;
  }
  .sb-gen-step {
    padding: 9px 14px;
    margin: 6px 0;
    background: rgba(15, 28, 48, 0.5);
    border-left: 2px solid var(--border-light);
    font-size: 12.5px;
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s;
  }
  .sb-gen-step .step-icon {
    width: 16px; height: 16px;
    flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 11px;
    color: var(--text-tertiary);
  }
  .sb-gen-step.active {
    background: rgba(168, 85, 247, 0.08);
    border-left-color: #c084fc;
    color: var(--text-primary);
  }
  .sb-gen-step.active .step-icon {
    color: #c084fc;
    animation: pulse-dot 1.2s ease-in-out infinite;
  }
  @keyframes pulse-dot {
    0%, 100% { opacity: 0.4; }
    50%      { opacity: 1; }
  }
  .sb-gen-step.done {
    background: rgba(46, 204, 113, 0.06);
    border-left-color: var(--risk-green);
    color: var(--text-secondary);
  }
  .sb-gen-step.done .step-icon { color: var(--risk-green); }

  /* === 历史复盘 · 模型校验扩展模块 === */
  .hist-validation {
    margin-top: 16px;
    background: var(--bg-panel-2);
    border: 1px solid var(--border);
    padding: 14px 16px;
  }
  .hist-validation-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-cyan);
    border-left: 3px solid var(--accent-cyan);
    padding-left: 10px;
    letter-spacing: 1px;
    margin-bottom: 10px;
  }
  .hist-val-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin: 12px 0;
  }
  .hist-val-col {
    background: var(--bg-panel);
    padding: 10px 12px;
    border-left: 2px solid var(--border-light);
  }
  .hist-val-col-title {
    font-size: 11px;
    color: var(--text-tertiary);
    letter-spacing: 1px;
    margin-bottom: 8px;
  }
  .hist-val-col.actual { border-left-color: var(--accent-amber); }
  .hist-val-col.actual .hist-val-col-title { color: var(--accent-amber); }
  .hist-val-col.ai { border-left-color: var(--accent-cyan); }
  .hist-val-col.ai .hist-val-col-title { color: var(--accent-cyan); }
  .hist-val-row {
    font-size: 11.5px;
    color: var(--text-primary);
    margin: 4px 0;
    line-height: 1.6;
  }
  .hist-val-row strong { color: var(--text-primary); font-weight: 600; }
  .hist-metric-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin: 10px 0;
  }
  .hist-metric-card {
    background: var(--bg-panel);
    padding: 8px 10px;
    text-align: center;
    border-top: 2px solid var(--accent-cyan);
  }
  .hist-metric-label {
    font-size: 10px;
    color: var(--text-tertiary);
    letter-spacing: 1px;
    margin-bottom: 3px;
  }
  .hist-metric-val {
    font-size: 18px;
    font-weight: 600;
    color: var(--accent-cyan);
    font-family: "Roboto Mono", monospace;
  }
  .hist-metric-val.win { color: var(--risk-green); }
  .hist-metric-val.warn { color: var(--accent-amber); }
  .hist-weight-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 11.5px;
    border-bottom: 1px dashed var(--border);
  }
  .hist-weight-row:last-child { border-bottom: none; }
  .hist-weight-name {
    width: 130px;
    color: var(--text-secondary);
    flex-shrink: 0;
  }
  .hist-weight-bar-wrap {
    flex: 1;
    background: var(--bg-deep);
    height: 8px;
    position: relative;
    overflow: hidden;
  }
  .hist-weight-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-cyan), #0099ff);
    transition: width 0.6s;
  }
  .hist-weight-pct {
    width: 80px;
    text-align: right;
    font-family: "Roboto Mono", monospace;
    font-size: 11px;
    color: var(--accent-cyan);
    flex-shrink: 0;
  }
  .hist-weight-pct.up { color: var(--risk-green); }
  .hist-weight-pct.down { color: var(--accent-amber); }
  
  /* === 视觉：场景推演中"进入预演沙盘"按钮高亮 === */
  .live-to-sandbox-cta {
    margin-top: 18px;
    padding: 14px;
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.12) 0%, rgba(0, 212, 255, 0.08) 100%);
    border: 1px solid #a855f7;
    text-align: center;
  }

  /* === V3.3 路段孪生研判完成后的悬浮 CTA === */
  .twin-done-cta {
    position: absolute;
    right: 18px;
    bottom: 78px;          /* 让出底部时间轴空间 */
    width: 320px;
    background: linear-gradient(135deg, rgba(20, 37, 64, 0.97) 0%, rgba(15, 28, 48, 0.97) 100%);
    border: 1px solid #a855f7;
    box-shadow: 0 6px 28px rgba(168, 85, 247, 0.35), 0 0 0 1px rgba(168, 85, 247, 0.15);
    padding: 14px 16px 14px 18px;
    z-index: 45;
    display: none;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }
  .twin-done-cta.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
  }
  .twin-done-cta::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0; width: 3px;
    background: linear-gradient(180deg, #c084fc, #a855f7);
  }
  .twin-done-cta-close {
    position: absolute;
    top: 6px; right: 8px;
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    font-size: 14px;
    cursor: pointer;
    line-height: 1;
    padding: 2px 6px;
    font-family: inherit;
  }
  .twin-done-cta-close:hover { color: var(--text-primary); }
  .twin-done-cta-tag {
    display: inline-block;
    background: rgba(46, 204, 113, 0.18);
    color: var(--risk-green);
    padding: 2px 8px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1.5px;
    margin-bottom: 8px;
  }
  .twin-done-cta-title {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
  }
  .twin-done-cta-desc {
    font-size: 11.5px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
  }
  .twin-done-cta-btn {
    width: 100%;
    background: linear-gradient(135deg, #a855f7, #7c3aed);
    color: white;
    border: none;
    padding: 9px 14px;
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.15s;
  }
  .twin-done-cta-btn:hover { box-shadow: 0 0 16px rgba(168, 85, 247, 0.55); }
  /* 出现时的发光呼吸 */
  @keyframes twin-cta-glow {
    0%, 100% { box-shadow: 0 6px 28px rgba(168, 85, 247, 0.35), 0 0 0 1px rgba(168, 85, 247, 0.15); }
    50%      { box-shadow: 0 6px 36px rgba(168, 85, 247, 0.55), 0 0 0 1px rgba(168, 85, 247, 0.4); }
  }
  .twin-done-cta.show {
    animation: twin-cta-glow 3s ease-in-out 1s 2;
  }

  /* ===== V3.0 AI生成式决策沙盘：三栏结构 ===== */
  .sandbox-body-v3 {
    display: grid;
    grid-template-columns: 280px 1fr 360px;
    gap: 1px;
    background: var(--border);
    overflow: hidden;
    min-height: 540px;
    flex-shrink: 0;
  }
  /* 左栏：AI生成方案卡片 */
  .sb-plans-col {
    background: var(--bg-panel);
    padding: 14px 14px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .sb-plans-col-title {
    font-size: 11px;
    color: var(--text-tertiary);
    letter-spacing: 1.5px;
    margin-bottom: 4px;
    padding-bottom: 6px;
    border-bottom: 1px dashed var(--border-light);
  }
  .sb-plans-col-title strong { color: #c084fc; }
  .sb-plan-card {
    background: var(--bg-panel-2);
    border: 1px solid var(--border);
    border-left: 3px solid var(--text-tertiary);
    padding: 10px 12px;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
  }
  .sb-plan-card:hover {
    border-color: var(--border-light);
    background: var(--bg-panel-3);
  }
  .sb-plan-card.active {
    border: 1px solid var(--accent-cyan);
    border-left: 3px solid var(--accent-cyan);
    background: rgba(0, 212, 255, 0.06);
    box-shadow: 0 0 12px rgba(0, 212, 255, 0.15);
  }
  .sb-plan-card.plan-a.active {
    border-color: var(--risk-red);
    border-left-color: var(--risk-red);
    background: rgba(231, 76, 60, 0.06);
    box-shadow: 0 0 12px rgba(231, 76, 60, 0.15);
  }
  .sb-plan-card.plan-b.active {
    border-color: var(--accent-amber);
    border-left-color: var(--accent-amber);
    background: rgba(255, 181, 46, 0.06);
    box-shadow: 0 0 12px rgba(255, 181, 46, 0.15);
  }
  .sb-plan-card.plan-c.active {
    border-color: var(--risk-green);
    border-left-color: var(--risk-green);
    background: rgba(46, 204, 113, 0.08);
    box-shadow: 0 0 14px rgba(46, 204, 113, 0.2);
  }
  .sb-plan-head {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
  }
  .sb-plan-letter {
    width: 24px; height: 24px;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700;
    font-size: 13px;
    font-family: "Roboto Mono", monospace;
    color: #001a26;
    flex-shrink: 0;
  }
  .sb-plan-card.plan-a .sb-plan-letter { background: var(--risk-red); color: white; }
  .sb-plan-card.plan-b .sb-plan-letter { background: var(--accent-amber); color: #1a1004; }
  .sb-plan-card.plan-c .sb-plan-letter { background: var(--risk-green); color: #003315; }
  .sb-plan-name {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    line-height: 1.3;
  }
  .sb-plan-rec-badge {
    background: var(--risk-green);
    color: #003315;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 6px;
    letter-spacing: 0.5px;
  }
  .sb-plan-desc {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 6px;
  }
  .sb-plan-mini-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    font-size: 10px;
    color: var(--text-tertiary);
    border-top: 1px dashed var(--border);
    padding-top: 6px;
  }
  .sb-plan-mini-stats span strong {
    color: var(--text-primary);
    font-family: "Roboto Mono", monospace;
    font-weight: 600;
    margin-left: 3px;
  }
  /* 中栏：沙盘推演 */
  .sb-sim-col {
    background: var(--bg-panel);
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }
  .sb-sim-head {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-panel-2);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .sb-sim-title {
    font-size: 12px;
    color: var(--text-secondary);
    letter-spacing: 1px;
  }
  .sb-sim-title strong { color: var(--accent-cyan); margin-left: 6px; }
  .sb-sim-tag {
    font-size: 10px;
    padding: 2px 8px;
    letter-spacing: 0.5px;
    font-weight: 600;
  }
  .sb-sim-tag.tag-a { background: rgba(231, 76, 60, 0.18); color: var(--risk-red); }
  .sb-sim-tag.tag-b { background: rgba(255, 181, 46, 0.18); color: var(--accent-amber); }
  .sb-sim-tag.tag-c { background: rgba(46, 204, 113, 0.2); color: var(--risk-green); }
  .sb-sim-map {
    flex: 1;
    position: relative;
    background: radial-gradient(ellipse at 50% 50%, #0a1828 0%, #050a14 100%);
    overflow: hidden;
    min-height: 360px;
  }
  .sb-sim-map svg { width: 100%; height: 100%; display: block; }
  .sb-sim-stats {
    background: var(--bg-panel-2);
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
  }
  .sb-sim-stat {
    text-align: center;
  }
  .sb-sim-stat-label {
    font-size: 11px;
    color: var(--text-tertiary);
    letter-spacing: 1px;
    margin-bottom: 3px;
  }
  .sb-sim-stat-val {
    font-size: 16px;
    font-weight: 600;
    font-family: "Roboto Mono", monospace;
    color: var(--text-primary);
    transition: color 0.3s;
  }
  .sb-sim-stat-val.win { color: var(--risk-green); }
  .sb-sim-stat-val.warn { color: var(--accent-amber); }
  .sb-sim-stat-val.bad { color: var(--risk-red); }
  /* 右栏：调度执行（Tab） */
  .sb-exec-col {
    background: var(--bg-panel);
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }
  .sb-exec-head {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-panel-2);
    font-size: 11px;
    color: var(--text-tertiary);
    letter-spacing: 1px;
  }
  .sb-exec-head strong { color: var(--accent-amber); }
  .sb-exec-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    background: var(--bg-panel-2);
  }
  .sb-exec-tab {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 9px 10px;
    font-size: 11.5px;
    font-family: inherit;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    letter-spacing: 0.5px;
    transition: all 0.15s;
  }
  .sb-exec-tab:hover { color: var(--text-primary); background: rgba(0, 212, 255, 0.04); }
  .sb-exec-tab.active {
    color: var(--accent-cyan);
    border-bottom-color: var(--accent-cyan);
    background: rgba(0, 212, 255, 0.06);
  }
  .sb-exec-body {
    flex: 1;
    overflow-y: auto;
    padding: 14px 16px;
    font-size: 12px;
    line-height: 1.7;
    color: #c5d3e8;
  }
  .sb-exec-body::-webkit-scrollbar { width: 4px; }
  .sb-exec-body::-webkit-scrollbar-thumb { background: var(--border-light); }
  .sb-exec-pane { display: none; }
  .sb-exec-pane.active { display: block; }
  .sb-exec-doc-title {
    font-size: 13px;
    color: var(--accent-cyan);
    font-weight: 600;
    border-left: 3px solid var(--accent-cyan);
    padding-left: 8px;
    margin-bottom: 10px;
    letter-spacing: 0.5px;
  }
  .sb-exec-meta {
    font-size: 10.5px;
    color: var(--text-tertiary);
    background: var(--bg-panel-2);
    padding: 6px 10px;
    margin-bottom: 12px;
    border-left: 2px solid var(--border-light);
    letter-spacing: 0.3px;
  }
  .sb-exec-cmd-item {
    margin-bottom: 10px;
    padding: 8px 10px 8px 12px;
    background: rgba(15, 28, 48, 0.6);
    border-left: 2px solid var(--accent-amber);
    font-size: 11.5px;
    line-height: 1.6;
  }
  .sb-exec-cmd-item strong { color: var(--accent-amber); }
  .sb-exec-cmd-num {
    display: inline-block;
    background: var(--accent-amber);
    color: #1a1004;
    width: 18px; height: 18px;
    line-height: 18px;
    text-align: center;
    font-size: 10px;
    font-weight: 700;
    margin-right: 6px;
    font-family: "Roboto Mono", monospace;
  }
  .sb-exec-public {
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    padding: 12px 14px;
    font-size: 12px;
    line-height: 1.8;
    color: var(--text-primary);
  }
  .sb-exec-brief {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.06), rgba(0, 212, 255, 0.04));
    border: 1px solid rgba(168, 85, 247, 0.3);
    padding: 12px 14px;
    font-size: 12px;
    line-height: 1.8;
    color: var(--text-primary);
  }
  .sb-exec-brief-title {
    font-size: 12px;
    color: #c084fc;
    font-weight: 600;
    text-align: center;
    margin-bottom: 8px;
    letter-spacing: 1px;
    padding-bottom: 6px;
    border-bottom: 1px solid rgba(168, 85, 247, 0.2);
  }
  .sb-exec-actions {
    margin-top: 14px;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
  }
  .sb-exec-actions .btn-mini {
    flex: 1;
    min-width: 70px;
    text-align: center;
  }
  /* 沙盘地图：方案动态高亮元素 */
  .sb-plan-only-a, .sb-plan-only-b, .sb-plan-only-c { display: none; }
  .sb-sim-map[data-plan="a"] .sb-plan-only-a { display: block; }
  .sb-sim-map[data-plan="b"] .sb-plan-only-b { display: block; }
  .sb-sim-map[data-plan="c"] .sb-plan-only-c { display: block; }