#case-detail-modal {
    display: none;
    z-index: var(--z-modal-max, 2147483647);
    --case-evidence-panel-bg: var(--bg-tertiary, #F9FAFB);
    --case-evidence-card-bg: var(--bg-secondary, #FFFFFF);
    --case-evidence-border: var(--border-color, #E5E7EB);
    --case-evidence-text-main: var(--text-primary, #111827);
    --case-evidence-text-sub: var(--text-secondary, #6B7280);
    --case-evidence-text-weak: var(--text-tertiary, #9CA3AF);
    --case-evidence-file-row-bg: var(--bg-secondary, #FFFFFF);
    --case-evidence-file-list-bg: var(--bg-tertiary, #F9FAFB);
    --case-evidence-folder-icon: var(--color-warning, #F59E0B);
    --case-evidence-file-icon: #3B82F6;
    --case-evidence-file-row-border: #3B82F6;
    --case-evidence-tag-bg: linear-gradient(135deg, #10B981 0%, #059669 100%);
    --case-evidence-tag-empty-bg: #9CA3AF;
    --case-evidence-danger-bg: #FEF2F2;
    --case-evidence-danger-border: #FECACA;
    --case-evidence-danger-text: #EF4444;
    --case-detail-panel-bg: var(--bg-tertiary, #F9FAFB);
    --case-detail-card-bg: var(--bg-secondary, #FFFFFF);
    --case-detail-border: var(--border-color, #E5E7EB);
    --case-detail-text-main: var(--text-primary, #111827);
    --case-detail-text-sub: var(--text-secondary, #6B7280);
    --case-detail-text-weak: var(--text-tertiary, #9CA3AF);
    --case-detail-accent: var(--info, #3B82F6);
    --case-detail-success: var(--success, #10B981);
    --case-detail-warning: var(--warning, #F59E0B);
    --case-detail-cyan: var(--info, #3DCFFF);
    --case-detail-danger: var(--danger, #EF4444);
    --case-detail-warning-bg: rgba(245, 158, 11, 0.18);
    --case-detail-danger-bg: rgba(239, 68, 68, 0.1);
    --case-detail-success-bg: rgba(16, 185, 129, 0.1);
    --case-detail-cyan-bg: rgba(61, 207, 255, 0.1);
    --case-detail-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    --case-detail-layer-base-bg: var(--bg-primary, #E0E2E5);
    --case-detail-layer-section-bg: var(--bg-tertiary, #F3F4F6);
    --case-detail-layer-inner-bg: var(--bg-secondary, #FFFFFF);
    --case-detail-gold-border: var(--brand-primary, #F0B90B);
    --case-detail-gold-border-soft: rgba(240, 185, 11, 0.72);
    --case-card-layer-bg: #FFFFFF;
    --case-card-layer-border: #E5E7EB;
}

[data-theme="dark"] #case-detail-modal {
    --case-detail-layer-base-bg: var(--bg-primary, #0B0E11);
    --case-detail-layer-section-bg: var(--bg-tertiary, #2B3139);
    --case-detail-layer-inner-bg: var(--bg-secondary, #181A20);
    --case-detail-gold-border: var(--brand-primary, #F0B90B);
    --case-detail-gold-border-soft: rgba(240, 185, 11, 0.78);
    --case-card-layer-bg: #1E2329;
    --case-card-layer-border: #3A414D;
}

#case-detail-modal .modal-overlay {
    background: var(--app-modal-mask-bg, rgba(11, 14, 17, 0.62)) !important;
    backdrop-filter: var(--app-modal-mask-filter, blur(16px) saturate(1.04)) !important;
    -webkit-backdrop-filter: var(--app-modal-mask-filter, blur(16px) saturate(1.04)) !important;
}

#case-detail-modal .modal-body {
    user-select: text;
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    background: var(--case-detail-layer-base-bg);
}

#case-detail-modal #case-detail-content .detail-section {
    background: var(--case-detail-layer-section-bg);
}

#case-detail-modal #case-detail-content .detail-grid {
    background: var(--case-detail-layer-inner-bg);
}

#case-detail-modal .detail-item-header {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    min-height: 30px;
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

#case-detail-modal .detail-item-header .detail-item-label {
    flex: 0 0 auto;
    margin: 0;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

#case-detail-modal .detail-item-workdir {
    flex: 0 1 auto;
    min-width: 0;
    max-width: 100%;
    font-size: 11px;
    color: var(--case-detail-text-sub);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: left;
}

#case-detail-modal .detail-item-workdir-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1 1 auto;
    min-width: 0;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
}

#case-detail-modal .detail-item-header-actions {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex: 0 0 auto;
    margin-left: auto;
}

#case-detail-modal .detail-item-workdir-open-btn,
#case-detail-modal .app-action-btn--quick-open {
    flex: 0 0 auto;
    height: 28px;
    padding: 0 10px;
    border-radius: 6px;
    border: 1px solid var(--brand-primary, #F0B90B);
    background: var(--brand-primary, #F0B90B);
    color: var(--text-primary, #1E2329);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    line-height: 1;
    align-self: center;
    white-space: nowrap;
    max-width: 100%;
}

#case-detail-modal .detail-item-workdir-open-btn:hover,
#case-detail-modal .app-action-btn--quick-open:hover {
    background: var(--brand-primary-hover, #D6A409);
    border-color: var(--brand-primary-hover, #D6A409);
}

#case-detail-modal .modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

#case-detail-modal .modal-header h3 {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    flex: 1 1 auto;
    min-width: 0;
}

#case-detail-modal #case-detail-modal-title {
    display: inline-block;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#case-detail-modal .case-detail-recon-actions {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
    flex: 0 0 auto;
}

#case-detail-modal .case-detail-recon-btn {
    height: 34px;
    padding: 0 12px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    border: 1px solid var(--border-color, #e5e7eb);
    background: rgba(255, 255, 255, 0.92);
    color: var(--text-primary, #1e2329);
    transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

#case-detail-modal .case-detail-recon-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.12);
}

#case-detail-modal .case-detail-recon-btn--primary {
    /* User request: white background + black text */
    border-color: rgba(17, 24, 39, 0.25);
    background: rgba(255, 255, 255, 0.95);
    color: #111827;
}

#case-detail-modal .case-detail-recon-btn--danger {
    border-color: var(--color-danger, #F6465D);
    background: var(--color-danger, #F6465D);
    color: #FFFFFF;
}

#case-detail-modal .case-detail-recon-btn--danger:hover {
    border-color: var(--color-danger-hover, #D63A52);
    background: var(--color-danger-hover, #D63A52);
    color: #FFFFFF;
}

#case-detail-modal .case-evidence-panel {
    width: 100%;
    box-sizing: border-box;
    padding: 14px;
    background: var(--case-evidence-panel-bg);
    border-radius: 8px;
    border: 1px solid var(--case-evidence-border);
    transition: padding 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

#case-detail-modal .case-evidence-panel.is-collapsed {
    padding: 0;
    border-width: 0;
    background: transparent;
}

@media (max-width: 768px) {
    #case-detail-modal .detail-item-header {
        grid-template-columns: 1fr;
        align-items: flex-start;
        gap: 6px;
    }
    #case-detail-modal .detail-item-workdir-wrap {
        width: 100%;
        max-width: 100%;
    }
    #case-detail-modal .detail-item-header-actions {
        margin-left: 0;
    }
    #case-detail-modal .detail-item-workdir {
        max-width: 100%;
        text-align: left;
    }
    #case-detail-modal .detail-item-workdir-open-btn,
    #case-detail-modal .app-action-btn--quick-open {
        height: 26px;
        padding: 0 8px;
        font-size: 11px;
    }
}

#case-detail-modal .case-evidence-panel-empty {
    padding: 12px;
}

#case-detail-modal .case-evidence-empty-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 12px;
    background: var(--case-evidence-card-bg);
    border: 1px solid var(--case-evidence-border);
    border-radius: 8px;
}

#case-detail-modal .case-evidence-empty-main {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

#case-detail-modal .case-evidence-empty-icon {
    font-size: 20px;
    color: var(--case-evidence-text-weak);
}

#case-detail-modal .case-evidence-empty-text {
    color: var(--case-evidence-text-sub);
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

#case-detail-modal .case-evidence-btn {
    white-space: nowrap;
}

#case-detail-modal .case-evidence-btn-add {
    padding: 6px 10px;
    font-size: 11px;
    background: linear-gradient(135deg, #10B981 0%, #059669 100%);
    color: #fff;
    border: none;
    border-radius: 6px;
}

#case-detail-modal .case-evidence-panel-empty .case-evidence-btn-add {
    padding: 8px 14px;
    font-size: 12px;
}

#case-detail-modal .case-evidence-folder-card {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 12px;
    padding: 12px 16px;
    background: var(--case-card-layer-bg);
    border-radius: 8px;
    border: 1px solid var(--case-card-layer-border);
    cursor: pointer;
}

#case-detail-modal .case-evidence-folder-icon {
    color: var(--case-evidence-folder-icon);
    font-size: 24px;
}

#case-detail-modal .case-evidence-folder-main {
    flex: 1;
    min-width: 0;
}

#case-detail-modal .case-evidence-folder-name {
    font-size: 14px;
    color: var(--case-evidence-text-main);
    font-weight: 600;
    margin-bottom: 4px;
}

#case-detail-modal .case-evidence-folder-path {
    font-size: 11px;
    color: var(--case-evidence-text-sub);
    word-break: break-all;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#case-detail-modal .case-evidence-folder-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
}

#case-detail-modal .case-evidence-folder-actions .case-evidence-btn-add,
#case-detail-modal .case-evidence-folder-actions .case-evidence-btn-open-folder {
    height: 34px;
    padding: 0 14px;
    font-size: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    line-height: 1;
    border-radius: 6px;
}

#case-detail-modal .case-evidence-btn-open-folder {
    padding: 8px 14px;
    font-size: 12px;
}

#case-detail-modal .case-evidence-toolbar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    margin-bottom: 8px;
    gap: 8px;
}

#case-detail-modal .case-evidence-toggle-btn {
    height: 28px;
    padding: 0 10px;
    font-size: 12px;
    font-weight: 600;
    line-height: 1;
    background: var(--case-evidence-card-bg);
    color: var(--case-evidence-text-main);
    border: 1px solid var(--case-evidence-border);
    border-radius: 6px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    white-space: nowrap;
}

#case-detail-modal .case-evidence-header-add-btn {
    height: 28px;
    padding: 0 10px;
    border-radius: 6px;
    border: none;
    background: linear-gradient(135deg, #10B981 0%, #059669 100%);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    white-space: nowrap;
}

#case-detail-modal .case-evidence-header-add-btn:hover {
    filter: brightness(0.95);
}

#case-detail-modal .case-evidence-inline-toggle-btn {
    flex: 0 0 auto;
    height: 26px;
    padding: 0 8px;
    border: 1px solid var(--case-evidence-border);
    border-radius: 6px;
    background: var(--case-evidence-card-bg);
    color: var(--case-detail-text-sub);
    font-size: 11px;
    cursor: pointer;
    white-space: nowrap;
}

#case-detail-modal .case-evidence-file-list {
    display: block;
    max-height: 300px;
    overflow-y: auto;
    padding: 0;
    background: transparent;
    border-radius: 0;
    border: 0;
    transition: max-height 0.2s ease, padding 0.2s ease, border-color 0.2s ease;
}

#case-detail-modal .case-evidence-file-list.is-collapsed {
    display: none;
    max-height: 0;
    padding: 0;
    border-color: transparent;
    overflow: hidden;
}

#case-detail-modal .case-evidence-panel:has(.case-evidence-file-list.is-collapsed) {
    padding: 0;
    border-width: 0;
    background: transparent;
}

#case-detail-modal .case-evidence-file-list.is-collapsed .case-evidence-file-row {
    display: none;
}

#case-detail-modal .case-evidence-file-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    margin-bottom: 4px;
    background: var(--case-card-layer-bg);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid var(--case-card-layer-border);
    border-left: 3px solid var(--case-evidence-file-row-border);
}

#case-detail-modal .case-evidence-file-row:last-child {
    margin-bottom: 0;
}

#case-detail-modal .case-evidence-file-icon {
    color: var(--case-evidence-file-icon);
    font-size: 12px;
}

#case-detail-modal .case-evidence-file-main {
    flex: 1;
    display: flex;
    align-items: center;
    font-size: 11px;
    color: var(--case-evidence-text-main);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#case-detail-modal .case-evidence-file-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#case-detail-modal .case-evidence-delete-btn,
#case-detail-modal .mailing-delete-btn,
#case-detail-modal .app-action-btn--delete {
    color: var(--case-evidence-danger-text);
    font-size: 11px;
    padding: 0 8px;
    height: 28px;
    cursor: pointer;
    border-radius: 6px;
    background: var(--case-evidence-danger-bg);
    border: 1px solid var(--case-evidence-danger-border);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

#case-detail-modal .evidence-classify-label {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-left: 6px;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 10px;
    cursor: pointer;
    color: #fff;
}

#case-detail-modal .evidence-classify-label.is-tagged {
    background: var(--case-evidence-tag-bg);
}

#case-detail-modal .evidence-classify-label.is-empty {
    background: var(--case-evidence-tag-empty-bg);
}

#case-detail-modal .evidence-classify-label.is-pending {
    background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
}

#case-detail-modal .evidence-classify-icon {
    font-size: 9px;
}

#case-detail-modal .case-detail-due-date-hover {
    cursor: help;
    border-bottom: 1px dashed var(--case-detail-border);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 2px 0;
}

#case-detail-modal .case-detail-due-date-hover-icon {
    color: var(--case-detail-text-weak);
    font-size: 11px;
}

#case-detail-modal .case-detail-deadline-note {
    margin-top: 8px;
    color: var(--case-detail-text-weak);
    font-size: 12px;
    line-height: 1.4;
    white-space: nowrap;
}

#case-detail-modal .case-detail-deadline-note--signed-before-create {
    color: var(--case-detail-danger);
    white-space: normal;
}

#case-detail-modal .case-detail-loading-text {
    text-align: center;
    color: var(--case-detail-text-weak);
}

#case-detail-modal .case-detail-file-panel {
    width: 100%;
    box-sizing: border-box;
    padding: 14px;
    background: var(--case-detail-panel-bg);
    border-radius: 8px;
    border: 1px solid var(--case-detail-border);
}

#case-detail-modal .case-detail-latest-file {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 64px 8px 12px;
    background: var(--case-card-layer-bg);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid var(--case-card-layer-border);
    border-left: 3px solid var(--case-detail-accent);
    box-shadow: var(--case-detail-shadow);
    position: relative;
}

#case-detail-modal .case-detail-file-delete-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    height: 26px;
    min-width: 42px;
    padding: 0 8px;
}

#case-detail-modal .case-detail-latest-file-icon {
    color: var(--case-detail-accent);
    font-size: 16px;
}

#case-detail-modal .case-detail-latest-file-main {
    flex: 1;
    min-width: 0;
}

#case-detail-modal .case-detail-latest-file-tip {
    font-size: 12px;
    color: var(--case-detail-text-sub);
    margin-bottom: 2px;
}

#case-detail-modal .case-detail-latest-file-name {
    font-size: 13px;
    color: var(--case-detail-text-main);
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#case-detail-modal .case-detail-latest-file-link {
    color: var(--case-detail-text-weak);
    font-size: 12px;
}

#case-detail-modal .case-detail-file-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: 10px;
}

#case-detail-modal .case-detail-file-hint {
    font-size: 11px;
    color: var(--case-detail-text-weak);
}

#case-detail-modal .case-detail-history-toggle-btn {
    padding: 6px 10px;
    border: 1px solid var(--case-detail-border);
    background: var(--case-detail-card-bg);
    color: var(--case-detail-text-main);
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
}

#case-detail-modal .case-detail-history-list {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed var(--case-detail-border);
}

#case-detail-modal .case-detail-history-list.is-hidden {
    display: none;
}

#case-detail-modal .case-detail-history-file {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    margin-bottom: 6px;
    background: var(--case-card-layer-bg);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid var(--case-card-layer-border);
    border-left: 3px solid var(--case-detail-text-weak);
    box-shadow: var(--case-detail-shadow);
}

#case-detail-modal .case-detail-history-file-icon {
    color: var(--case-detail-text-sub);
    font-size: 16px;
}

#case-detail-modal .case-detail-history-file-main {
    flex: 1;
    min-width: 0;
}

#case-detail-modal .case-detail-history-file-name {
    font-size: 13px;
    color: var(--case-detail-text-main);
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#case-detail-modal .case-detail-history-file-meta {
    font-size: 11px;
    color: var(--case-detail-text-weak);
    margin-top: 2px;
}

#case-detail-modal .case-detail-history-file-link {
    color: var(--case-detail-text-weak);
    font-size: 12px;
}

#case-detail-modal .case-close-section-icon {
    color: var(--case-detail-success);
    margin-right: 6px;
}

#case-detail-modal .case-close-remark-icon {
    color: #B37FEB;
    margin-right: 6px;
}

#case-detail-modal .case-close-section-value {
    width: 100%;
    box-sizing: border-box;
    padding: 10px;
    background: var(--case-detail-layer-section-bg);
    border-radius: 4px;
}

#case-detail-modal .case-close-info-card {
    padding: 12px;
    background: var(--case-detail-layer-inner-bg);
    border-radius: 8px;
    border: 1px solid var(--case-detail-border);
}

#case-detail-modal .case-close-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

#case-detail-modal .case-close-item {
    flex: 1;
    min-width: 200px;
}

#case-detail-modal .case-close-date-item {
    min-width: 160px;
}

#case-detail-modal .case-close-item-title {
    font-size: 12px;
    color: var(--case-detail-text-sub);
    margin-bottom: 4px;
}

#case-detail-modal .case-close-item-icon {
    margin-right: 4px;
}

#case-detail-modal .case-close-item-icon.is-settlement {
    color: var(--case-detail-success);
}

#case-detail-modal .case-close-item-icon.is-withdrawal {
    color: var(--case-detail-cyan);
}

#case-detail-modal .case-close-item-icon.is-date {
    color: var(--case-detail-warning);
}

#case-detail-modal .case-close-file-card {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 56px 6px 10px;
    background: var(--case-card-layer-bg);
    border-radius: 4px;
    border: 1px solid var(--case-card-layer-border);
    cursor: pointer;
    position: relative;
}

#case-detail-modal .case-close-file-delete-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    height: 24px;
    min-width: 42px;
    padding: 0 8px;
}

#case-detail-modal .case-close-file-card.is-settlement {
    border-left: 2px solid var(--case-detail-success);
}

#case-detail-modal .case-close-file-card.is-withdrawal {
    border-left: 2px solid var(--case-detail-cyan);
}

#case-detail-modal .case-close-file-icon.is-settlement {
    color: var(--case-detail-success);
    font-size: 14px;
}

#case-detail-modal .case-close-file-icon.is-withdrawal {
    color: var(--case-detail-cyan);
    font-size: 14px;
}

#case-detail-modal .case-close-file-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 12px;
    color: var(--case-detail-text-main);
}

#case-detail-modal .case-close-work-path-inline {
    color: var(--case-detail-text-sub);
    font-weight: 400;
    font-size: 11px;
    margin-left: 4px;
    word-break: break-all;
}

#case-detail-modal .case-close-folder-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    background: var(--case-card-layer-bg);
    border-radius: 6px;
    border: 1px solid var(--case-detail-border);
}

#case-detail-modal .case-close-folder-main {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    flex: 1;
}

#case-detail-modal .case-close-folder-label {
    flex: 0 0 auto;
    font-size: 13px;
    font-weight: 600;
    color: var(--case-detail-text-main);
}

#case-detail-modal .case-close-folder-path {
    min-width: 0;
    flex: 1;
    font-size: 13px;
    color: var(--case-detail-text-main);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#case-detail-modal .case-close-folder-open-btn {
    flex: 0 0 auto;
    height: 32px;
    padding: 0 12px;
    border-radius: 6px;
    border: 1px solid var(--brand-primary, #F0B90B);
    background: var(--brand-primary, #F0B90B);
    color: var(--text-primary, #1E2329);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
}

#case-detail-modal .case-close-folder-open-btn:hover {
    background: var(--brand-primary-hover, #D6A409);
    border-color: var(--brand-primary-hover, #D6A409);
}

#case-detail-modal .case-close-file-path {
    margin-top: 4px;
    font-size: 11px;
    line-height: 1.4;
    color: var(--case-detail-text-sub);
    word-break: break-all;
}

#case-detail-modal .case-close-date-value {
    padding: 6px 10px;
    background: var(--case-card-layer-bg);
    border-radius: 4px;
    border: 1px solid var(--case-detail-border);
    border-left: 2px solid var(--case-detail-warning);
    font-size: 12px;
    color: var(--case-detail-text-main);
}

#case-detail-modal .case-close-date-inline {
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
}

#case-detail-modal .case-close-date-inline-label {
    color: var(--case-detail-text-sub);
}

#case-detail-modal .case-close-date-inline-value {
    color: var(--case-detail-text-main);
    font-weight: 600;
}

#case-detail-modal .case-close-remark-value {
    width: 100%;
    box-sizing: border-box;
    padding: 10px;
    background: var(--case-detail-layer-inner-bg);
    border-radius: 4px;
    border: 1px solid var(--case-detail-border);
    font-size: 13px;
    color: var(--case-detail-text-main);
}

#case-detail-modal .case-mailing-panel {
    width: 100%;
    box-sizing: border-box;
    padding: 14px;
    background: var(--case-detail-panel-bg);
    border-radius: 8px;
    border: 1px solid var(--case-detail-border);
}

#case-detail-modal .case-mailing-file-list-wrap {
    max-height: 200px;
    overflow-y: auto;
    padding-right: 4px;
    margin-bottom: 12px;
}

#case-detail-modal .mailing-file-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    margin-bottom: 6px;
    background: var(--case-card-layer-bg);
    border-radius: 6px;
    transition: all 0.2s;
    border: 1px solid var(--case-card-layer-border);
    border-left: 3px solid var(--case-detail-success);
    box-shadow: var(--case-detail-shadow);
}

#case-detail-modal .case-evidence-folder-card:hover,
#case-detail-modal .case-evidence-file-row:hover,
#case-detail-modal .case-detail-latest-file:hover,
#case-detail-modal .case-detail-history-file:hover,
#case-detail-modal .case-close-file-card:hover,
#case-detail-modal .mailing-file-row:hover {
    border-color: var(--case-detail-gold-border);
}

#case-detail-modal .mailing-file-icon {
    color: var(--case-detail-success);
    font-size: 16px;
    cursor: pointer;
}

#case-detail-modal .mailing-file-main {
    flex: 1;
    min-width: 0;
    cursor: pointer;
}

#case-detail-modal .mailing-file-name {
    font-size: 13px;
    color: var(--case-detail-text-main);
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#case-detail-modal .mailing-folder-btn {
    padding: 4px 8px;
    font-size: 11px;
    background: var(--case-detail-card-bg);
    border: 1px solid var(--case-detail-border);
    border-radius: 4px;
    color: var(--case-detail-text-sub);
    cursor: pointer;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 4px;
}

#case-detail-modal .mailing-delete-btn {
    margin-left: 4px;
}

#case-detail-modal .case-mailing-empty {
    text-align: center;
    color: var(--case-detail-text-weak);
    padding: 12px;
}

#case-detail-modal .case-mailing-empty-logo {
    display: block;
    width: 32px;
    height: 32px;
    object-fit: contain;
    margin: 0 auto 8px;
}

#case-detail-modal .case-mailing-empty-text {
    font-size: 13px;
}

#case-detail-modal .case-mailing-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    padding-top: 12px;
    border-top: 1px dashed var(--case-detail-border);
}

#case-detail-modal .case-mailing-upload-btn {
    flex-shrink: 0;
}

#case-detail-modal .case-mailing-tracking-row {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
}

#case-detail-modal .case-mailing-tracking-label {
    margin: 0;
    color: var(--case-detail-text-sub);
    font-size: 13px;
    white-space: nowrap;
}

#case-detail-modal .case-mailing-tracking-input {
    flex: 1;
    height: 40px;
    padding: 0 10px;
    box-sizing: border-box;
    border: 1px solid var(--case-detail-border);
    border-radius: 4px;
    font-size: 13px;
    background: var(--case-detail-card-bg);
    color: var(--case-detail-text-main);
}

#case-detail-modal .case-mailing-btn-query {
    flex-shrink: 0;
    height: 40px;
    padding: 0 16px;
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    background: var(--case-detail-success);
    border: none;
    color: #fff;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
}

#case-detail-modal .case-mailing-btn-register {
    flex-shrink: 0;
    height: 40px;
    padding: 0 16px;
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    background: var(--case-detail-warning);
    border: 1px solid var(--case-detail-warning);
    color: #1E2329;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
}

#case-detail-modal .case-mailing-tracking-timeline {
    margin-top: 15px;
    display: none;
}

#case-detail-modal .case-mailing-timeline-scroll {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

#case-detail-modal .case-mailing-timeline-scroll::-webkit-scrollbar {
    width: 0;
    height: 0;
}

#case-detail-modal .case-mailing-timeline-card {
    padding: 12px;
    border-radius: 10px;
    border: 1px solid var(--case-detail-border);
    background: var(--case-detail-panel-bg);
}

#case-detail-modal .case-mailing-timeline-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding-bottom: 8px;
    margin-bottom: 10px;
    border-bottom: 1px solid var(--case-detail-border);
}

#case-detail-modal .case-mailing-timeline-head__meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

#case-detail-modal .case-mailing-timeline-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--case-detail-text-main);
}

#case-detail-modal .case-mailing-timeline-chip {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
}

#case-detail-modal .case-mailing-timeline-chip--state {
    background: rgba(14, 203, 129, 0.14);
    color: var(--case-detail-success);
}

#case-detail-modal .case-mailing-timeline-chip--signed {
    background: color-mix(in srgb, var(--case-detail-warning, #F0B90B) 18%, transparent);
    color: var(--case-detail-warning-text, #8A5B00);
}

#case-detail-modal .case-mailing-timeline-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

#case-detail-modal .case-mailing-timeline-action-btn {
    padding: 3px 10px;
    font-size: 11px;
    line-height: 1;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    color: #FFFFFF;
}

#case-detail-modal .case-mailing-timeline-action-btn--edit {
    background: var(--case-detail-warning, #F59E0B);
}

#case-detail-modal .case-mailing-timeline-action-btn--delete {
    background: var(--case-detail-danger, #EF4444);
}

#case-detail-modal .case-mailing-timeline-scroll {
    max-height: 220px;
    overflow-y: auto;
}

#case-detail-modal .case-mailing-timeline-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
}

#case-detail-modal .case-mailing-timeline-dot {
    width: 8px;
    height: 8px;
    margin-top: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--case-detail-border);
}

#case-detail-modal .case-mailing-timeline-dot.is-latest {
    background: var(--case-detail-success);
}

#case-detail-modal .case-mailing-timeline-item__content {
    flex: 1;
    min-width: 0;
}

#case-detail-modal .case-mailing-timeline-item__time,
#case-detail-modal .case-mailing-timeline-item__location {
    font-size: 12px;
    color: var(--case-detail-text-sub);
}

#case-detail-modal .case-mailing-timeline-item__status {
    font-size: 13px;
    color: var(--case-detail-text-main);
    font-weight: 500;
}

#case-detail-modal .case-mailing-timeline-item__status.is-latest {
    color: var(--case-detail-success);
    font-weight: 700;
}

#case-detail-modal .case-mailing-timeline-item__location {
    margin-top: 2px;
}

#case-detail-modal .case-mailing-timeline-source,
#case-detail-modal .case-mailing-timeline-empty {
    font-size: 11px;
    color: var(--case-detail-text-weak);
}

#case-detail-modal .case-mailing-timeline-source {
    margin-top: 10px;
    text-align: center;
}

@media (max-width: 640px) {
    #case-detail-modal .case-mailing-timeline-head {
        flex-direction: column;
        align-items: stretch;
    }

    #case-detail-modal .case-mailing-timeline-actions {
        justify-content: flex-end;
    }
}