/* ===== KPI 卡片：对齐设计稿 kpi-card ===== */
  #view-admin-cost-calculation .cost-kpi-card {
    background: var(--bg-card, #16161f);
    border: 1px solid var(--border, rgba(255,255,255,0.08));
    border-left: 4px solid var(--border, rgba(255,255,255,0.08));
    border-radius: var(--radius-md, 12px);
    padding: 20px;
    transition: border-color 0.15s ease;
  }
  #view-admin-cost-calculation .cost-kpi-card:hover {
    border-color: var(--border-strong, rgba(255,255,255,0.15));
  }
  #view-admin-cost-calculation .cost-kpi-card.accent-purple { border-left-color: #8b5cf6; }
  #view-admin-cost-calculation .cost-kpi-card.accent-blue { border-left-color: #3b82f6; }
  #view-admin-cost-calculation .cost-kpi-card.accent-teal { border-left-color: #14b8a6; }
  #view-admin-cost-calculation .cost-kpi-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
  }
  #view-admin-cost-calculation .cost-kpi-icon { font-size: 18px; }
  #view-admin-cost-calculation .cost-kpi-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary, #f3f4f6);
  }
  #view-admin-cost-calculation .cost-kpi-metrics {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
  }
  #view-admin-cost-calculation .cost-kpi-metrics > div {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  #view-admin-cost-calculation .cost-kpi-metrics span {
    font-size: 11px;
    color: var(--text-muted, #9ca3af);
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }
  #view-admin-cost-calculation .cost-kpi-metrics strong {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary, #f3f4f6);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
  }
  #view-admin-cost-calculation .cost-kpi-unit {
    font-size: 11px;
    font-weight: 400;
    color: var(--text-muted, #9ca3af);
  }
  #view-admin-cost-calculation .cost-kpi-divider {
    width: 1px;
    height: 36px;
    background: var(--border-strong, rgba(255,255,255,0.15));
  }
  #view-admin-cost-calculation .cost-kpi-sub {
    font-size: 12px;
    color: var(--text-muted, #9ca3af);
    margin-bottom: 12px;
  }
  #view-admin-cost-calculation .cost-progress {
    width: 100%;
    height: 4px;
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 6px;
  }
  #view-admin-cost-calculation .cost-progress::-webkit-progress-bar {
    background: var(--bg-elevated, #252535);
    border-radius: 2px;
  }
  #view-admin-cost-calculation .cost-progress::-webkit-progress-value {
    border-radius: 2px;
    transition: width 0.3s ease;
  }
  #view-admin-cost-calculation .cost-progress.purple::-webkit-progress-value { background: #8b5cf6; }
  #view-admin-cost-calculation .cost-progress.blue::-webkit-progress-value { background: #3b82f6; }
  #view-admin-cost-calculation .cost-progress.teal::-webkit-progress-value { background: #14b8a6; }
  #view-admin-cost-calculation .cost-progress-label {
    font-size: 11px;
    color: var(--text-muted, #9ca3af);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
  }

  /* ===== 合计卡片：对齐设计稿 total-card（amber 高亮） ===== */
  #view-admin-cost-calculation .cost-total-card {
    margin-top: 16px;
    background: var(--amber-dim, rgba(255,140,0,0.15));
    border: 1px solid var(--amber, #ff8c00);
    border-radius: var(--radius-md, 12px);
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
  }
  #view-admin-cost-calculation .cost-total-card span {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary, #d1d5db);
  }
  #view-admin-cost-calculation .cost-total-card strong {
    font-family: var(--font-heading, 'Sora', sans-serif);
    font-size: 32px;
    font-weight: 700;
    color: var(--amber, #ff8c00);
    letter-spacing: -0.5px;
  }
  #view-admin-cost-calculation .cost-total-card small {
    font-size: 12px;
    color: var(--text-muted, #9ca3af);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
  }

  /* ===== Section 标题 ===== */
  #view-admin-cost-calculation .cost-section-block {
    margin-bottom: 32px;
  }
  #view-admin-cost-calculation .cost-section-title-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
  }
  #view-admin-cost-calculation .cost-section-title-row h3 {
    font-family: var(--font-heading, 'Sora', sans-serif);
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary, #f3f4f6);
    margin: 0;
  }
  #view-admin-cost-calculation .cost-section-title-row span {
    font-size: 12px;
    color: var(--text-muted, #9ca3af);
  }

  /* ===== Tab Bar：对齐设计稿 tab-bar（amber 下划线） ===== */
  #view-admin-cost-calculation .cost-tab-bar {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border, rgba(255,255,255,0.08));
    margin-bottom: 20px;
  }
  #view-admin-cost-calculation .cost-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted, #9ca3af);
    cursor: pointer;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    transition: all 0.15s ease;
  }
  #view-admin-cost-calculation .cost-tab:hover {
    color: var(--text-secondary, #d1d5db);
  }
  #view-admin-cost-calculation .cost-tab.is-active {
    color: var(--amber, #ff8c00);
    border-bottom-color: var(--amber, #ff8c00);
    font-weight: 600;
  }

  /* ===== 配置卡片：对齐设计稿 config-card ===== */
  #view-admin-cost-calculation .cost-config-card {
    background: var(--bg-card, #16161f);
    border: 1px solid var(--border, rgba(255,255,255,0.08));
    border-radius: var(--radius-md, 12px);
    padding: 24px;
  }
  #view-admin-cost-calculation .cost-config-title {
    font-family: var(--font-heading, 'Sora', sans-serif);
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary, #f3f4f6);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border, rgba(255,255,255,0.08));
  }
  #view-admin-cost-calculation .cost-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
  }
  #view-admin-cost-calculation .cost-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  #view-admin-cost-calculation .cost-field label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary, #d1d5db);
  }
  #view-admin-cost-calculation .cost-input,
  #view-admin-cost-calculation .cost-select {
    background: var(--bg-input, #0a0a0b);
    border: 1px solid var(--border, rgba(255,255,255,0.08));
    border-radius: var(--radius-sm, 8px);
    padding: 8px 12px;
    color: var(--text-primary, #f3f4f6);
    font-size: 14px;
    font-family: var(--font-body, 'DM Sans', sans-serif);
  }
  #view-admin-cost-calculation .cost-input:focus,
  #view-admin-cost-calculation .cost-select:focus {
    outline: none;
    border-color: var(--amber, #ff8c00);
    box-shadow: 0 0 0 2px var(--amber-dim, rgba(255,140,0,0.15));
  }
  #view-admin-cost-calculation .cost-calc-strip {
    background: var(--bg-elevated, #252535);
    border: 1px solid var(--border, rgba(255,255,255,0.08));
    border-radius: var(--radius-sm, 8px);
    padding: 14px 18px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
  }
  #view-admin-cost-calculation .cost-calc-strip span {
    font-size: 12px;
    color: var(--text-muted, #9ca3af);
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }
  #view-admin-cost-calculation .cost-calc-strip strong {
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    font-size: 14px;
    color: var(--text-secondary, #d1d5db);
  }
  #view-admin-cost-calculation .cost-formula-box {
    background: var(--bg-panel-soft, rgba(99,102,241,0.03));
    border: 1px solid var(--border, rgba(255,255,255,0.08));
    border-radius: var(--radius-sm, 8px);
    padding: 12px 16px;
    font-size: 13px;
    color: var(--text-muted, #9ca3af);
    display: flex;
    align-items: center;
    gap: 8px;
  }

  /* ===== 表格：对齐设计稿 cost-table ===== */
  #view-admin-cost-calculation .cost-table {
    width: 100%;
    border-collapse: collapse;
  }
  #view-admin-cost-calculation .cost-table thead th {
    background: var(--bg-elevated, #252535);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted, #9ca3af);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border, rgba(255,255,255,0.08));
    white-space: nowrap;
  }
  #view-admin-cost-calculation .cost-table tbody tr {
    border-bottom: 1px solid var(--border, rgba(255,255,255,0.08));
    transition: background 0.1s ease;
  }
  #view-admin-cost-calculation .cost-table tbody tr:last-child {
    border-bottom: none;
  }
  #view-admin-cost-calculation .cost-table tbody tr:hover {
    background: var(--bg-card-hover, #1e1e28);
  }
  #view-admin-cost-calculation .cost-table td {
    padding: 12px 16px;
    font-size: 14px;
    color: var(--text-secondary, #d1d5db);
  }
  #view-admin-cost-calculation .cost-table .cost-mono {
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
  }

  /* ===== 工具栏 ===== */
  #view-admin-cost-calculation .cost-limit-toolbar {
    margin-bottom: 16px;
  }

  /* ===== 表格说明文字 ===== */
  #view-admin-cost-calculation .cost-table-caption {
    margin-top: 12px;
    font-size: 12px;
    color: var(--text-muted, #9ca3af);
    text-align: right;
  }

  /* ===== 用户限额小节标签 ===== */
  #view-admin-cost-calculation .cost-limit-subsection-label {
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted, #9ca3af);
    margin: 24px 0 12px;
    padding-top: 16px;
    border-top: 1px dashed var(--border, rgba(255,255,255,0.08));
  }

  /* ===== Top 5 消耗用户表格 ===== */
  #view-admin-cost-calculation .cost-top-users-card {
    background: var(--bg-card, #16161f);
    border: 1px solid var(--border, rgba(255,255,255,0.08));
    border-radius: var(--radius-md, 12px);
    padding: 24px;
    margin-bottom: 8px;
    overflow: hidden;
  }
  #view-admin-cost-calculation .cost-top-table {
    width: 100%;
    border-collapse: collapse;
  }
  #view-admin-cost-calculation .cost-top-table thead th {
    background: var(--bg-elevated, #252535);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted, #9ca3af);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border, rgba(255,255,255,0.08));
    white-space: nowrap;
  }
  #view-admin-cost-calculation .cost-top-table .th-user { width: 200px; }
  #view-admin-cost-calculation .cost-top-table .th-cost {
    text-align: right;
    width: 140px;
  }
  #view-admin-cost-calculation .cost-top-table tbody tr {
    border-bottom: 1px solid var(--border, rgba(255,255,255,0.08));
    transition: background 0.1s ease;
  }
  #view-admin-cost-calculation .cost-top-table tbody tr:last-child {
    border-bottom: none;
  }
  #view-admin-cost-calculation .cost-top-table tbody tr:hover {
    background: var(--bg-card-hover, #1e1e28);
  }
  #view-admin-cost-calculation .cost-top-table td {
    padding: 12px 16px;
    font-size: 14px;
  }
  #view-admin-cost-calculation .cost-top-table .td-user {
    color: var(--text-primary, #f3f4f6);
    font-weight: 500;
  }
  #view-admin-cost-calculation .cost-top-user-cell {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  #view-admin-cost-calculation .cost-top-avatar {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm, 8px);
    background: var(--bg-elevated, #252535);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: var(--amber, #ff8c00);
    flex-shrink: 0;
    text-transform: uppercase;
  }
  #view-admin-cost-calculation .cost-top-table .td-num {
    text-align: right;
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    color: var(--text-secondary, #d1d5db);
    font-size: 13px;
  }
  #view-admin-cost-calculation .cost-top-table .td-total {
    text-align: right;
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    color: var(--amber, #ff8c00);
    font-weight: 700;
    font-size: 14px;
  }
  #view-admin-cost-calculation .cost-top-footer-row {
    background: var(--bg-elevated, #252535);
  }
  #view-admin-cost-calculation .cost-top-footer-row .td-footer-label {
    font-weight: 600;
    color: var(--text-primary, #f3f4f6);
  }
  #view-admin-cost-calculation .cost-top-footer-row .td-footer-num {
    font-weight: 600;
    color: var(--text-secondary, #d1d5db);
  }
  #view-admin-cost-calculation .cost-top-footer-row .td-footer-total {
    color: var(--amber, #ff8c00);
    font-size: 15px;
  }