* { box-sizing: border-box; margin: 0; padding: 0; }
  body { font-family: "PingFang SC", "Microsoft YaHei", sans-serif; background: #f4f6fa; color: #2c3e50; font-size: 14px; }
  header { background: linear-gradient(135deg, #2c3e50 0%, #3d6b8e 100%); color: #fff; padding: 18px 28px; display: flex; align-items: center; gap: 14px; }
  header h1 { font-size: 20px; font-weight: 700; letter-spacing: 1px; }
  header span { font-size: 12px; opacity: .7; margin-top: 3px; }
  .tabs { display: flex; background: #fff; border-bottom: 2px solid #e0e7ef; padding: 0 24px; }
  .tab { padding: 14px 22px; cursor: pointer; font-weight: 600; color: #7f8c9a; border-bottom: 3px solid transparent; margin-bottom: -2px; transition: all .2s; font-size: 14px; }
  .tab.active { color: #2b6cb0; border-bottom-color: #2b6cb0; }
  .tab:hover:not(.active) { color: #4a6fa5; }
  .page { display: none; padding: 0; max-width: 100%; margin: 0; }
  .page.active { display: block; }
  .card { background: #fff; border-radius: 10px; box-shadow: 0 2px 8px rgba(0,0,0,.06); padding: 18px 20px; margin-bottom: 14px; }
  .card-title { font-size: 14px; font-weight: 700; color: #2b6cb0; border-left: 4px solid #2b6cb0; padding-left: 10px; margin-bottom: 16px; }
  .grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
  .field { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
  .field[hidden] { display: none !important; }
  .field label { font-size: 12px; color: #596578; font-weight: 600; }
  .field input, .field select {
    width: 100%;
    min-width: 0;
    border: 1.5px solid #d0dae8; border-radius: 7px; padding: 8px 11px;
    font-size: 14px; color: #2c3e50; background: #f8fafd;
    transition: border .2s;
  }
  .field input:focus, .field select:focus { outline: none; border-color: #2b6cb0; background: #fff; }
  .field .unit { font-size: 11px; color: #9baabb; margin-top: 2px; }
  .toggle-row { display: flex; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; }
  .toggle-btn {
    padding: 8px 18px; border-radius: 20px; border: 1.5px solid #c5d4e8;
    background: #f0f5fb; color: #4a6fa5; font-weight: 600; cursor: pointer;
    font-size: 13px; transition: all .2s;
  }
  .toggle-btn.active { background: #2b6cb0; color: #fff; border-color: #2b6cb0; }
  .toggle-btn.disabled, .toggle-btn:disabled {
    opacity: .45; cursor: not-allowed; filter: grayscale(.3);
  }
  #fabricType .toggle-btn.active:disabled {
    opacity: 1;
    filter: none;
  }
  .sku-lookup-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; align-items: end; }
  .sku-suggestion-anchor { position: relative; min-width: 0; }
  .sku-suggestion-anchor input { width: 100%; }
  .sku-suggestion-list {
    position: absolute;
    z-index: 60;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    display: grid;
    gap: 0;
    max-height: 296px;
    overflow-y: auto;
    border: 1px solid var(--ops-line, #c8d7cf);
    border-radius: 4px;
    padding: 0;
    background: var(--ops-paper, #fff);
    box-shadow: 0 8px 16px rgba(58, 48, 40, .10);
  }
  .sku-suggestion-list[hidden] { display: none; }
  .sku-suggestion-option {
    border: 0;
    border-bottom: 1px solid var(--ops-line-soft, #e3dad1);
    border-radius: 0;
    background: transparent;
    color: var(--ops-ink, #3a3028);
    cursor: pointer;
    font: inherit;
    min-height: 58px;
    padding: 10px 12px;
    text-align: left;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
  }
  .sku-suggestion-option:last-child { border-bottom: 0; }
  .sku-suggestion-option:hover,
  .sku-suggestion-option:focus {
    background: #f3ede4;
    outline: none;
  }
  .sku-suggestion-detail { min-width: 0; display: grid; gap: 4px; }
  .sku-suggestion-code { font-weight: 700; font-family: Consolas, "SFMono-Regular", monospace; letter-spacing: .02em; }
  .sku-suggestion-meta { color: var(--ops-muted, #7c6e61); font-size: 12px; line-height: 1.35; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .sku-suggestion-facts { display: grid; gap: 3px; justify-items: end; color: var(--ops-muted, #7c6e61); font-size: 12px; line-height: 1.25; white-space: nowrap; }
  .sku-suggestion-facts span:first-child { color: var(--ops-brown, #6a4b35); font-weight: 700; }
  .sku-suggestion-empty { padding: 16px 12px; color: var(--ops-muted, #7c6e61); font-size: 13px; }
  .sku-lookup-btn {
    border: none; border-radius: 7px; padding: 9px 16px; background: #2b6cb0;
    color: #fff; font-weight: 700; cursor: pointer; white-space: nowrap;
  }
  .sku-lookup-btn:disabled { opacity: .55; cursor: wait; }
  .sku-status { margin-top: 10px; font-size: 12px; line-height: 1.6; color: #4a5568; }
  .sku-status[hidden] { display: none !important; }
  .sku-status.ok { color: #276749; }
  .sku-status.err { color: #c53030; }
  .sku-status:empty { display: none !important; }
  .global-notice {
    position: fixed;
    top: 86px;
    left: 50%;
    z-index: 9999;
    max-width: min(420px, calc(100vw - 32px));
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid rgba(49, 94, 78, .22);
    background: #fff;
    color: #122d25;
    box-shadow: 0 14px 38px rgba(18, 45, 37, .18);
    font-size: 14px;
    font-weight: 700;
    line-height: 1.55;
    opacity: 0;
    transform: translate(-50%, -10px);
    pointer-events: none;
    transition: opacity .18s ease, transform .18s ease;
  }
  .global-notice.show {
    opacity: 1;
    transform: translate(-50%, 0);
  }
  .global-notice.ok {
    border-color: rgba(47, 109, 79, .24);
    background: #eaf5ef;
    color: #235a41;
  }
  .global-notice.err {
    border-color: rgba(163, 58, 42, .22);
    background: #fbebe8;
    color: #9b2c20;
  }
  .sku-param-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 12px; margin-top: 10px; font-size: 11px; color: #596578; }
  .sku-param-grid b { color: #2d3748; }
  #page-products,
  #page-admin { padding: 24px; }
  .product-library-page { max-width: 1440px; margin: 0 auto; }
  .admin-parameter-page { max-width: 1280px; margin: 0 auto; }
  .admin-subtabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 14px;
    border-bottom: 1px solid #d9e2d8;
  }
  .admin-subtab {
    border: 0;
    border-bottom: 3px solid transparent;
    background: transparent;
    padding: 10px 14px;
    color: #63756d;
    font-weight: 800;
    cursor: pointer;
  }
  .admin-subtab.active {
    color: #19372d;
    border-bottom-color: #2f6a56;
  }
  .admin-subpane[hidden] { display: none !important; }
  .quote-log-toolbar {
    display: grid;
    grid-template-columns: minmax(220px, 1fr) auto auto;
    gap: 10px;
    align-items: end;
  }
  .quote-log-table-wrap {
    overflow: auto;
    border: 1px solid #e1e8de;
    border-radius: 8px;
    background: #fff;
  }
  .quote-log-table {
    width: 100%;
    min-width: 920px;
    border-collapse: collapse;
  }
  .quote-log-table th,
  .quote-log-table td {
    padding: 10px 12px;
    border-bottom: 1px solid #e6ece4;
    text-align: left;
    vertical-align: middle;
    white-space: nowrap;
  }
  .quote-log-table th {
    background: #f5f8f4;
    color: #19372d;
    font-size: 12px;
    font-weight: 800;
  }
  .quote-log-table td {
    color: #263d34;
    font-size: 13px;
  }
  .quote-log-empty {
    padding: 20px;
    color: #718096;
    text-align: center;
  }
  .quote-log-pagination {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 10px;
    margin-top: 12px;
    color: #52665c;
    font-size: 13px;
  }
  .quote-log-detail-btn {
    width: auto;
    min-width: 82px;
    padding: 7px 10px;
    border: 1px solid #b7c5bd;
    border-radius: 7px;
    background: #fff;
    color: #19372d;
    font-size: 12px;
    font-weight: 800;
    cursor: pointer;
  }
  .quote-log-detail-btn:hover {
    border-color: #2f6a56;
    color: #2f6a56;
  }
  .quote-log-detail-modal-panel {
    width: min(920px, calc(100vw - 48px));
  }
  .quote-log-detail-body {
    overflow: auto;
    padding: 18px;
    background: #fbfcfa;
  }
  .quote-log-detail-section {
    margin-bottom: 16px;
    border: 1px solid #dbe5d8;
    border-radius: 8px;
    overflow: hidden;
    background: #fff;
  }
  .quote-log-detail-section:last-child {
    margin-bottom: 0;
  }
  .quote-log-detail-section h4 {
    margin: 0;
    padding: 10px 12px;
    border-bottom: 1px solid #e5ece2;
    background: #f5f8f4;
    color: #19372d;
    font-size: 14px;
  }
  .quote-log-detail-grid {
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr);
  }
  .quote-log-detail-key,
  .quote-log-detail-value {
    padding: 9px 12px;
    border-bottom: 1px solid #edf2ea;
    color: #263d34;
    font-size: 13px;
    line-height: 1.5;
    word-break: break-word;
  }
  .quote-log-detail-key {
    background: #fafcf9;
    color: #60736a;
    font-weight: 800;
  }
  .quote-log-detail-grid > div:nth-last-child(-n + 2) {
    border-bottom: 0;
  }
  .admin-parameter-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .admin-parameter-section {
    border-top: 1px solid #e2eadf;
    padding-top: 16px;
  }
  .admin-parameter-section:first-child {
    border-top: 0;
    padding-top: 0;
  }
  .admin-parameter-section-title {
    margin: 0 0 12px;
    color: #17352b;
    font-size: 15px;
    font-weight: 900;
  }
  .admin-parameter-section-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 16px;
  }
  .admin-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 16px;
  }
  .admin-actions .sku-lookup-btn { min-width: 120px; }
  .processing-fee-toolbar {
    display: grid;
    grid-template-columns: minmax(220px, 360px) max-content;
    gap: 12px;
    align-items: end;
    margin-bottom: 12px;
  }
  .processing-fee-save-btn {
    width: 160px;
    justify-self: start;
    padding-left: 18px;
    padding-right: 18px;
  }
  .processing-fee-form {
    display: grid;
    gap: 16px;
    margin-top: 14px;
  }
  .processing-fee-section {
    border: 1px solid #d6ded2;
    border-radius: 8px;
    background: #fbfcfa;
    padding: 14px;
  }
  .processing-fee-section h3 {
    margin: 0 0 12px;
    color: #19372d;
    font-size: 16px;
  }
  .processing-fee-subsection {
    border: 1px solid #d6ded2;
    border-radius: 8px;
    background: #fff;
    padding: 14px;
  }
  .processing-fee-subsection h4 {
    margin: 0 0 10px;
    color: #19372d;
    font-size: 15px;
  }
  .processing-fee-section-note {
    margin: -6px 0 12px;
    color: #63756d;
    font-size: 12px;
    font-weight: 700;
  }
  .processing-fee-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
  .processing-fee-table-wrap {
    overflow: auto;
    border: 1px solid #e1e8de;
    border-radius: 8px;
    background: #fff;
  }
  .processing-fee-table {
    width: 100%;
    min-width: 520px;
    border-collapse: collapse;
  }
  .processing-fee-table th,
  .processing-fee-table td {
    padding: 10px 12px;
    border-bottom: 1px solid #e6ece4;
    text-align: left;
    white-space: nowrap;
  }
  .processing-fee-table th {
    background: #f5f8f4;
    color: #19372d;
    font-size: 12px;
  }
  .processing-fee-table input {
    width: 100%;
    min-width: 72px;
    height: 32px;
    border: 1px solid #cbd8cf;
    border-radius: 7px;
    padding: 5px 9px;
    background: #fff;
    color: #19372d;
    font: inherit;
    font-weight: 700;
    outline: none;
    transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
  }
  .processing-fee-table input:focus {
    border-color: #2f6a56;
    background: #fbfffd;
    box-shadow: 0 0 0 3px rgba(47, 106, 86, .12);
  }
  .processing-fee-table input::-webkit-outer-spin-button,
  .processing-fee-table input::-webkit-inner-spin-button {
    margin: 0;
  }
  .admin-upload-panel { margin-top: 18px; }
  .admin-upload-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
  .admin-upload-box {
    border: 1px solid #d6ded2;
    border-radius: 8px;
    padding: 14px;
    background: #fbfcfa;
  }
  .admin-upload-box h3 {
    margin: 0 0 12px;
    color: #19372d;
    font-size: 16px;
  }
  .admin-upload-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .admin-upload-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    align-items: end;
    margin-bottom: 10px;
  }
  .admin-upload-row.admin-upload-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-bottom: 0;
  }
  .admin-upload-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 10px;
  }
  .admin-upload-form .sku-status,
  .admin-upload-preview-actions,
  .admin-upload-source-actions {
    margin-top: 0;
  }
  .admin-upload-preview-actions {
    display: block;
  }
  .admin-upload-source-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .admin-upload-source-actions .sku-lookup-btn,
  .admin-upload-preview-btn {
    width: 100%;
    min-height: 40px;
  }
  .import-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }
  .import-stat {
    border: 1px solid #d6ded2;
    border-radius: 8px;
    padding: 12px;
    background: #fbfcfa;
  }
  .import-stat span { display: block; color: #6f7f76; font-size: 12px; }
  .import-stat strong { display: block; margin-top: 5px; color: #19372d; font-size: 20px; }
  .import-confirm {
    display: none;
    margin-top: 14px;
    border: 1px solid #b8d5c9;
    border-radius: 8px;
    background: #eef8f3;
    padding: 12px;
  }
  .import-confirm.active { display: block; }
  .preview-summary {
    display: grid;
    grid-template-columns: repeat(7, minmax(82px, 1fr));
    gap: 6px;
    padding: 12px 14px 8px;
    margin-bottom: 0;
  }
  .preview-summary span {
    border: 1px solid #d6ded2;
    border-radius: 8px;
    background: #fbfcfa;
    padding: 7px 9px;
    color: #6f7f76;
    font-size: 11px;
  }
  .preview-summary strong { display: block; margin-top: 3px; color: #19372d; font-size: 16px; }
  .preview-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    padding: 8px 14px 12px;
    margin-bottom: 0;
    border-bottom: 1px solid #e1e8de;
  }
  .preview-filter {
    border: 1px solid #cbd8cf;
    background: #fff;
    color: #19372d;
    border-radius: 6px;
    padding: 8px 10px;
    cursor: pointer;
  }
  .preview-filter.active { background: #2f6a56; color: #fff; border-color: #2f6a56; }
  .preview-input, .preview-select {
    width: 100%;
    min-width: 92px;
    height: 36px;
    border: 1px solid #cbd8cf;
    border-radius: 8px;
    padding: 7px 10px;
    background: #fff;
    color: #19372d;
    font: inherit;
    outline: none;
    transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
  }
  .preview-input:focus,
  .preview-select:focus {
    border-color: #2f6a56;
    background: #fbfffd;
    box-shadow: 0 0 0 3px rgba(47, 106, 86, .12);
  }
  .preview-input.error, .preview-select.error { border-color: #d64545; background: #fff5f5; }
  .preview-search-input {
    max-width: 300px;
    min-width: 220px;
  }
  .image-import-wizard .admin-upload-form {
    gap: 12px;
  }
  .image-import-wizard .admin-upload-preview-actions {
    margin-top: 0;
  }
  .image-import-flow {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    padding: 12px 14px;
    border-bottom: 1px solid #e1e8de;
    background: #fbfcfa;
  }
  .image-import-flow-step {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 38px;
    border: 1px solid #d6ded2;
    border-radius: 8px;
    background: #fff;
    color: #6f7f76;
  }
  .image-import-flow-step span {
    display: inline-grid;
    place-items: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #eef2f0;
    color: #52665c;
    font-size: 12px;
    font-weight: 800;
  }
  .image-import-flow-step strong {
    font-size: 13px;
  }
  .image-import-flow-step.active,
  .image-import-flow-step.done {
    border-color: #2f6a56;
    background: #eef8f3;
    color: #19372d;
  }
  .image-import-flow-step.active span,
  .image-import-flow-step.done span {
    background: #2f6a56;
    color: #fff;
  }
  .image-import-modal-source {
    display: grid;
    gap: 12px;
    padding: 14px;
    background: #fff;
  }
  .image-import-modal-source .admin-upload-actions {
    margin-top: 0;
  }
  .image-check-steps {
    display: grid;
    grid-template-columns: repeat(5, minmax(96px, 1fr));
    gap: 8px;
  }
  .image-check-step {
    border: 1px solid #d6ded2;
    border-radius: 8px;
    background: #fbfcfa;
    color: #6f7f76;
    padding: 9px 10px;
    font-size: 12px;
    font-weight: 700;
    text-align: center;
  }
  .image-check-step::before {
    content: "";
    display: inline-block;
    width: 8px;
    height: 8px;
    margin-right: 6px;
    border-radius: 50%;
    background: #b7c5bd;
    vertical-align: 1px;
  }
  .image-check-step.active {
    border-color: #2f6a56;
    background: #eef8f3;
    color: #19372d;
  }
  .image-check-step.active::before { background: #2f6a56; }
  .image-check-step.done {
    border-color: #a9c9b7;
    background: #f4fbf7;
    color: #2f6a56;
  }
  .image-check-step.done::before {
    background: #2f6a56;
  }
  .preview-pager {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    flex-wrap: wrap;
    padding: 10px 14px;
    border-top: 1px solid #e1e8de;
    background: #fbfcfa;
    color: #52665c;
    font-size: 12px;
  }
  .preview-pager button {
    border: 1px solid #cbd8cf;
    border-radius: 6px;
    background: #fff;
    color: #19372d;
    padding: 6px 10px;
    font-weight: 700;
    cursor: pointer;
  }
  .preview-pager button:disabled {
    opacity: .45;
    cursor: not-allowed;
  }
  .preview-pager select {
    border: 1px solid #cbd8cf;
    border-radius: 6px;
    padding: 6px 8px;
    background: #fff;
  }
  .preview-status {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 4px 8px;
    font-size: 12px;
    font-weight: 700;
  }
  .preview-status.new { background: #dcfce7; color: #166534; }
  .preview-status.duplicate { background: #ffedd5; color: #9a3412; }
  .preview-status.rejected { background: #fee2e2; color: #991b1b; }
  .preview-status.modified { background: #e0f2fe; color: #075985; }
  .preview-status.skipped { background: #eef2f0; color: #52665c; }
  .preview-errors { min-width: 140px; color: #8b2f2f; line-height: 1.45; font-size: 12px; }
  .admin-upload-preview {
    margin-top: 12px;
    border: 1px solid #d6ded2;
    border-radius: 8px;
    overflow: hidden;
  }
  .admin-upload-preview[hidden] { display: none !important; }
  .admin-upload-modal[hidden] { display: none !important; }
  .admin-upload-modal {
    position: fixed;
    inset: 0;
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(18, 33, 28, .46);
  }
  .admin-upload-modal-panel {
    width: min(1280px, calc(100vw - 48px));
    max-height: min(820px, calc(100vh - 48px));
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 22px 60px rgba(0,0,0,.26);
  }
  #skuImagePreviewModal .admin-upload-modal-panel {
    height: min(820px, calc(100vh - 48px));
  }
  #skuImagePreviewModal[data-image-import-current-step="upload"] .admin-upload-modal-panel {
    height: auto;
    max-height: min(620px, calc(100vh - 48px));
  }
  #skuImportPreviewModal .admin-upload-modal-panel,
  #liningImportPreviewModal .admin-upload-modal-panel {
    height: min(820px, calc(100vh - 48px));
  }
  #skuImportPreviewModal[data-workbook-import-current-step="upload"] .admin-upload-modal-panel,
  #liningImportPreviewModal[data-workbook-import-current-step="upload"] .admin-upload-modal-panel {
    height: auto;
    max-height: min(520px, calc(100vh - 48px));
  }
  .missing-sku-image-modal-panel {
    height: min(720px, calc(100vh - 48px));
  }
  .admin-upload-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 18px;
    border-bottom: 1px solid #d6ded2;
    background: #f8faf7;
  }
  .admin-upload-modal-header h3 {
    margin: 0;
    color: #19372d;
    font-size: 16px;
  }
  .admin-upload-modal-close {
    border: 1px solid #b7c5bd;
    border-radius: 7px;
    padding: 7px 12px;
    background: #fff;
    color: #19372d;
    font-weight: 700;
    cursor: pointer;
  }
  .admin-upload-modal .admin-upload-preview {
    margin-top: 0;
    border: 0;
    border-radius: 0;
    display: flex;
    min-height: 0;
    flex: 1;
    flex-direction: column;
  }
  #skuImagePreviewModal .image-import-page-stack {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    background: #fff;
  }
  #skuImagePreviewModal[data-image-import-current-step="upload"] .image-import-page-stack {
    flex: none;
    overflow: visible;
  }
  #skuImagePreviewModal [data-image-import-step-page][hidden] {
    display: none !important;
  }
  #skuImportPreviewModal [data-import-step-page][hidden],
  #liningImportPreviewModal [data-import-step-page][hidden] {
    display: none !important;
  }
  #skuImagePreviewModal .image-import-modal-source {
    min-height: 100%;
    box-sizing: border-box;
    align-content: start;
  }
  #skuImagePreviewModal[data-image-import-current-step="upload"] .image-import-modal-source {
    min-height: 0;
  }
  #skuImagePreviewModal .admin-upload-preview-actions {
    display: flex;
    justify-content: center;
  }
  #skuImagePreviewModal #previewSkuImageFolderBtn {
    width: min(260px, 100%);
  }
  #skuImagePreviewModal .admin-upload-preview {
    display: block;
    min-height: 100%;
    overflow: visible;
  }
  .workbook-import-page-stack {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    background: #fff;
  }
  #skuImportPreviewModal[data-workbook-import-current-step="upload"] .workbook-import-page-stack,
  #liningImportPreviewModal[data-workbook-import-current-step="upload"] .workbook-import-page-stack {
    flex: none;
    overflow: visible;
  }
  #skuImportPreviewModal .image-import-modal-source .admin-upload-preview-actions,
  #liningImportPreviewModal .image-import-modal-source .admin-upload-preview-actions {
    display: flex;
    justify-content: center;
  }
  #previewSkuImportBtn,
  #previewLiningImportBtn {
    width: min(260px, 100%);
  }
  #skuImportPreviewModal .admin-upload-preview,
  #liningImportPreviewModal .admin-upload-preview {
    display: block;
    min-height: 100%;
    overflow: visible;
  }
  .admin-upload-modal .image-check-steps {
    padding: 12px 14px;
    border-bottom: 1px solid #e1e8de;
    background: #fbfcfa;
  }
  .admin-upload-modal .admin-upload-table-wrap {
    max-height: none;
    flex: 1;
    min-height: 180px;
    overflow: auto;
  }
  #skuImagePreviewModal .admin-upload-table-wrap {
    max-height: 360px;
    flex: none;
  }
  .write-progress[hidden] {
    display: none !important;
  }
  .write-progress {
    display: grid;
    gap: 8px;
    padding: 12px 14px;
    border-top: 1px solid #d6ded2;
    background: #f8fbf7;
  }
  .write-progress-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--showroom-green-deep);
    font-size: 13px;
    font-weight: 800;
  }
  .write-progress-track {
    height: 8px;
    overflow: hidden;
    border-radius: 999px;
    background: #dde9e1;
  }
  .write-progress-bar {
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: var(--showroom-green);
    transition: width .18s ease;
  }
  .write-progress.is-running .write-progress-bar {
    width: 45%;
    animation: imageWriteProgressSlide 1.1s ease-in-out infinite;
  }
  .write-progress.is-running.is-determinate .write-progress-bar {
    width: var(--write-progress-width, 0);
    animation: none;
  }
  .write-progress.is-done .write-progress-bar,
  .write-progress.is-error .write-progress-bar {
    width: 100%;
  }
  .write-progress.is-error .write-progress-bar {
    background: #c94b4b;
  }
  @keyframes imageWriteProgressSlide {
    0% { transform: translateX(-120%); }
    50% { transform: translateX(75%); }
    100% { transform: translateX(240%); }
  }
  .missing-sku-image-body {
    display: flex;
    min-height: 0;
    flex: 1;
    flex-direction: column;
    gap: 12px;
    padding: 16px 18px;
    overflow: hidden;
  }
  .missing-sku-image-table-wrap {
    max-height: none;
    flex: 1;
    min-height: 180px;
    border: 1px solid #e1e8de;
    border-radius: 8px;
  }
  .admin-upload-modal .admin-upload-actions {
    padding: 12px 14px;
    margin-top: 0;
    border-top: 1px solid #d6ded2;
    background: #fff;
    justify-content: flex-end;
  }
  .admin-upload-modal .admin-upload-actions .sku-lookup-btn {
    width: auto;
    min-width: 120px;
  }
  .cost-reveal-modal[hidden] { display: none !important; }
  .cost-reveal-modal {
    position: fixed;
    inset: 0;
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(18, 33, 28, .46);
  }
  .cost-reveal-panel {
    width: min(420px, calc(100vw - 48px));
    overflow: hidden;
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 22px 60px rgba(0,0,0,.26);
  }
  .cost-reveal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 18px;
    border-bottom: 1px solid #d6ded2;
    background: #f8faf7;
  }
  .cost-reveal-header h3 {
    margin: 0;
    color: #19372d;
    font-size: 16px;
  }
  .cost-reveal-body {
    display: grid;
    gap: 10px;
    padding: 18px;
  }
  .cost-reveal-body label {
    font-size: 13px;
    font-weight: 700;
    color: #2d4339;
  }
  .cost-reveal-body input {
    width: 100%;
    height: 42px;
    border: 1px solid #cbd8cf;
    border-radius: 8px;
    padding: 0 12px;
    font: inherit;
    color: #122d25;
    background: #fff;
  }
  .cost-reveal-body input:focus {
    outline: none;
    border-color: #2f6a56;
    box-shadow: 0 0 0 3px rgba(47, 106, 86, .12);
  }
  .cost-reveal-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 6px;
  }
  .admin-upload-summary {
    padding: 10px 12px;
    background: #f3f7f1;
    color: #395448;
    font-size: 13px;
    border-bottom: 1px solid #d6ded2;
  }
  .admin-upload-table-wrap {
    max-height: 260px;
    overflow: auto;
  }
  .admin-upload-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
  }
  .admin-upload-table th,
  .admin-upload-table td {
    padding: 7px 10px;
    border-bottom: 1px solid #e6ece3;
    text-align: left;
    vertical-align: top;
    white-space: nowrap;
  }
  .admin-upload-table th {
    background: #f8faf7;
    color: #53645b;
    position: sticky;
    top: 0;
  }
  .admin-upload-table td:last-child {
    white-space: normal;
    min-width: 180px;
  }
  .admin-panel[hidden],
  #adminParameterForm[hidden],
  #adminUploadPanel[hidden] { display: none !important; }
  .product-library-controls {
    display: grid;
    grid-template-columns: minmax(240px, 1.4fr) repeat(4, minmax(132px, 180px)) auto;
    gap: 12px;
    align-items: end;
  }
  .product-custom-filter-controls { display: contents; }
  .product-library-controls .field select,
  .product-library-controls .field input {
    width: 100%;
  }
  @media (max-width: 1180px) {
    .product-library-controls {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    .product-library-controls .sku-lookup-btn {
      width: 100%;
    }
  }
  @media (max-width: 720px) {
    #page-products,
    #page-admin { padding: 16px; }

    .quote-log-toolbar {
      grid-template-columns: 1fr;
    }
    .product-library-controls {
      grid-template-columns: 1fr;
    }
    .admin-parameter-grid,
    .admin-parameter-section-grid { grid-template-columns: 1fr; }
    .admin-upload-grid,
    .admin-upload-row { grid-template-columns: 1fr; }
    .admin-upload-source-actions { grid-template-columns: 1fr; }
  }
  .product-library-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }
  .product-pagination {
    display: grid;
    place-items: center;
    flex-wrap: wrap;
    margin-top: 22px;
  }
  .product-simple-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    width: 100%;
  }
  .product-page-numbers {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .product-page-button {
    box-sizing: border-box;
    min-width: 52px;
    height: 52px;
    padding: 0 12px;
    border: 1px solid #b8c9bd;
    border-radius: 10px;
    background: #fff;
    color: #24312d;
    font: inherit;
    font-size: 17px;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    transition: border-color .16s ease, background-color .16s ease, color .16s ease;
  }
  .product-page-jump input {
    box-sizing: border-box;
    min-width: 52px;
    height: 52px;
    padding: 0 12px;
    border: 1px solid #b8c9bd;
    border-radius: 10px;
    background: #fff;
    color: #24312d;
    font: inherit;
    font-size: 17px;
    font-weight: 700;
    line-height: 1;
    transition: border-color .16s ease, background-color .16s ease, color .16s ease;
  }
  .product-page-button:hover:not(:disabled) {
    border-color: #2f684f;
    color: #2f684f;
  }
  .product-page-button.active {
    border-color: #2f684f;
    background: #2f684f;
    color: #fff;
  }
  .product-page-button:disabled,
  .product-page-jump input:disabled {
    opacity: .55;
    cursor: not-allowed;
  }
  .product-page-button.active:disabled {
    opacity: 1;
    cursor: default;
  }
  .product-page-prev,
  .product-page-next {
    width: 52px;
    padding: 0;
    font-size: 34px;
    font-weight: 400;
  }
  .product-page-ellipsis {
    min-width: 24px;
    color: #52615b;
    font-size: 22px;
    font-weight: 700;
    text-align: center;
  }
  .product-page-jump {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #46534e;
    font-size: 16px;
    font-weight: 700;
  }
  .product-page-jump input {
    width: 68px;
    min-width: 68px;
    padding: 0 8px;
    text-align: center;
    appearance: textfield;
    cursor: text;
  }
  .product-page-jump input::-webkit-inner-spin-button,
  .product-page-jump input::-webkit-outer-spin-button {
    margin: 0;
    appearance: none;
  }
  .product-page-count {
    white-space: nowrap;
  }
  .product-page-jump-button {
    min-width: 64px;
    font-size: 14px;
  }
  .product-page-button:focus-visible,
  .product-page-jump input:focus-visible {
    outline: 3px solid rgba(47, 104, 79, .22);
    outline-offset: 2px;
  }
  @media (max-width: 720px) {
    .product-simple-pagination { gap: 8px; }
    .product-page-button,
    .product-page-jump input {
      min-width: 44px;
      height: 44px;
      font-size: 15px;
    }
    .product-page-prev,
    .product-page-next { width: 44px; padding: 0; font-size: 30px; }
    .product-page-jump { gap: 6px; font-size: 14px; }
    .product-page-jump input { width: 58px; min-width: 58px; }
    .product-page-jump-button { min-width: 56px; font-size: 13px; }
  }
  .product-card {
    background: #fff;
    border: 1px solid #d8e2ec;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,.05);
    display: grid;
    grid-template-columns: 148px minmax(0, 1fr);
  }
  .product-card-media {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    background: #f7fafc;
    border-right: 1px solid #e3ebf2;
    padding: 10px 8px;
    min-height: 100%;
  }
  .product-image-frame {
    position: relative;
    width: 124px;
    height: 140px;
    overflow: hidden;
    background-color: #eef3f7;
    border-radius: 8px;
  }
  .product-image-fill {
    display: none;
  }
  .product-image-main {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    background: transparent;
    cursor: zoom-in;
  }
  .product-image-frame[data-placeholder="1"] {
    background: #eef3f7;
  }
  .product-image-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #eef3f7;
    color: #8a99aa;
    font-size: 12px;
  }
  .product-card-body { min-width: 0; padding: 14px; display: flex; flex: 1; flex-direction: column; gap: 8px; }
  .product-card-head { min-width: 0; margin-bottom: 0; }
  .product-card-head strong { display: block; color: #1a365d; font-size: 16px; line-height: 1.3; overflow-wrap: anywhere; }
  .product-card-head span { display: block; color: #718096; font-size: 12px; margin-top: 2px; overflow-wrap: anywhere; }
  .product-card-meta { display: grid; grid-template-columns: 1fr; gap: 5px; color: #596578; font-size: 12px; margin-bottom: 0; }
  .product-card-meta-item { min-width: 0; white-space: nowrap; }
  .product-card-composition { min-width: 0; white-space: normal; overflow-wrap: anywhere; word-break: break-word; line-height: 1.35; }
  .product-card-composition b { display: block; max-width: 100%; margin-top: 2px; white-space: normal; overflow-wrap: anywhere; word-break: break-all; }
  .product-card-meta b { color: #2d3748; }
  .product-card-meta-item:not(.product-card-composition) b { white-space: nowrap; }
  .product-custom-fields { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 10px; }
  .product-custom-field {
    border: 1px solid #d8e2ec;
    border-radius: 7px;
    background: #f8fbfd;
    color: #40556b;
    font-size: 11px;
    padding: 4px 7px;
  }
  .product-custom-field b { color: #1f2f3d; }
  .product-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
  .product-tag {
    border: 1px solid #d8e2ec;
    border-radius: 999px;
    padding: 3px 8px;
    background: #f8fbfd;
    color: #4a6fa5;
    font-size: 11px;
  }
  .product-card-actions { display: flex; justify-content: flex-end; margin-top: auto; padding-top: 2px; }
  .product-card-actions .sku-lookup-btn { width: 100%; min-height: 42px; }
  .product-empty {
    grid-column: 1 / -1;
    border: 1px dashed #cbd8e4;
    border-radius: 10px;
    background: #fff;
    color: #718096;
    padding: 28px;
    text-align: center;
  }
  @media (max-width: 1180px) {
    .product-library-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }
  @media (max-width: 720px) {
    .product-library-grid {
      grid-template-columns: 1fr;
    }
    .product-card {
      grid-template-columns: 136px minmax(0, 1fr);
    }
    .product-image-frame {
      width: 112px;
      height: 128px;
    }
  }
  .room-planner-card {
    position: relative;
    overflow: hidden;
    background:
      linear-gradient(135deg, rgba(32, 76, 120, .08), rgba(199, 169, 112, .08)),
      #fff;
  }
  .step1-setup-grid {
    display: grid;
    grid-column: 1 / -1;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
    gap: 20px;
    align-items: stretch;
    min-width: 0;
    margin-bottom: 14px;
  }
  .step1-setup-grid > .card {
    min-width: 0;
    margin-bottom: 0;
  }
  .step1-setup-grid .sku-lookup-row {
    grid-template-columns: minmax(0, 1fr);
  }
  .step1-setup-grid .sku-lookup-btn {
    width: 100%;
  }
  .customer-info-card {
    grid-column: 1 / -1;
  }
  .customer-info-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
  }
  .room-planner-card .grid2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  @media (max-width: 720px) {
    .step1-setup-grid {
      grid-template-columns: 1fr;
    }
    .customer-info-grid {
      grid-template-columns: 1fr;
    }
    .room-planner-card .grid2 {
      grid-template-columns: 1fr;
    }
  }
  .room-planner-card::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 3px;
    background: linear-gradient(90deg, #204c78, #c7a970);
  }
  .room-sizing-summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 12px;
  }
  .room-sizing-item {
    border: 1px solid #d8e2ec;
    border-radius: 8px;
    background: #f8fbfd;
    padding: 10px 11px;
    min-height: 62px;
  }
  .room-sizing-item span {
    display: block;
    color: #718096;
    font-size: 11px;
    margin-bottom: 5px;
  }
  .room-sizing-item strong {
    display: block;
    color: #1a365d;
    font-size: 15px;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .locked-input {
    background: #edf2f7 !important;
    color: #4a5568 !important;
    cursor: default;
  }
  .height-limit-status { margin-top: 6px; font-size: 12px; line-height: 1.45; color: #4a5568; }
  .height-limit-status.ok { color: #276749; }
  .height-limit-status.err { color: #c53030; font-weight: 700; }
  .btn-calc {
    display: block; width: 100%; padding: 13px; background: linear-gradient(135deg,#2b6cb0,#3d8bc4);
    color: #fff; border: none; border-radius: 9px; font-size: 15px; font-weight: 700;
    cursor: pointer; letter-spacing: 1px; margin-top: 20px; transition: opacity .2s;
  }
  .btn-calc:hover { opacity: .9; }

  /* 三联单页签与打印按钮样式 */
  .result-tabs { display: flex; border-bottom: 2px solid #cbd5e0; margin-bottom: 15px; background: #f7fafc; border-radius: 6px 6px 0 0; }
  .result-tab { flex: 1; text-align: center; padding: 10px 5px; cursor: pointer; font-size: 12px; font-weight: 700; color: #718096; transition: all .2s; }
  .result-tab.active { background: #2b6cb0; color: #fff; border-bottom: 2px solid #2b6cb0; }
  .result-tab:hover:not(.active) { background: #edf2f7; color: #2b6cb0; }
  .quote-serial-row { margin: 0 0 10px 4px; color: #2d3748; font-size: 12px; }
  .quote-serial-row strong { color: #2f684f; }
  
  .result-pane { display: none; }
  .result-pane.active { display: block; }

  .result-section {
    margin: 12px 0;
    padding: 10px 12px;
    border: 1px solid #d7e0d8;
    border-radius: 8px;
    background: #fbfdfb;
  }
  .result-section-title {
    margin: 0 0 8px;
    padding: 0 0 6px;
    border-bottom: 1px solid #d7e0d8;
    color: #122d25;
    font-size: 13px;
    font-weight: 800;
    line-height: 1.35;
  }
  .result-section-title-with-action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
  }
  .result-cost-eye {
    width: 28px;
    height: 28px;
    border: 1px solid #b7c7bd;
    border-radius: 999px;
    background: #fff;
    color: #2f684f;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
  }
  .result-cost-eye:hover {
    border-color: #2f684f;
    background: #eef7f1;
  }
  .result-eye-icon {
    position: relative;
    width: 16px;
    height: 10px;
    border: 1.8px solid currentColor;
    border-radius: 70% 35%;
    transform: rotate(-12deg);
  }
  .result-eye-icon::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: currentColor;
    transform: translate(-50%, -50%);
  }
  .result-section-protected:not(.is-revealed) .result-section-title {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: 0;
  }
  .result-section-protected-body[hidden] {
    display: none !important;
  }
  .result-section .result-line:last-child {
    border-bottom: 0;
  }

  .result-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-top: 14px;
  }
  .btn-pdf,
  .btn-print {
    display: inline-block; width: 100%; padding: 9px 10px;
    color: #fff; border: none; border-radius: 6px;
    font-size: 12px; font-weight: 700; cursor: pointer; text-align: center;
  }
  .btn-pdf { background: #2f684f; }
  .btn-pdf:hover { background: #25543f; }
  .btn-print { background: #4a5568; }
  .btn-print:hover { background: #2d3748; }

  /* 打印专属纯净排版样式 */
  .p-title { font-size: 16px; font-weight: 800; text-align: center; margin-bottom: 12px; color: #1a202c; border-bottom: 2px solid #2d3748; padding-bottom: 6px; }
  .p-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 10px 0; }
  .p-block { border: 1px solid #e2e8f0; padding: 8px 10px; border-radius: 5px; background: #fff; font-size: 11px; }
  .p-block-title { font-weight: 700; color: #2b6cb0; margin-bottom: 4px; border-bottom: 1px solid #edf2f7; padding-bottom: 3px; }
  .p-row { display: flex; justify-content: space-between; padding: 4px 0; border-bottom: 1px dashed #edf2f7; font-size: 11px; }
  .p-row:last-child { border-bottom: none; }
  .p-row .val { font-weight: 700; color: #2d3748; }
  .p-terms { font-size: 10px; color: #4a5568; margin-top: 12px; line-height: 1.5; border-top: 1px solid #cbd5e0; padding-top: 8px; text-align: justify; }
  .p-sig-box { display: flex; justify-content: space-between; margin-top: 25px; font-size: 11px; font-weight: 700; color: #2d3748; }

  /* ===== 三栏比例自适应规划 ===== */
  .three-col {
    display: grid;
    --preview-width: clamp(320px, 24vw, 460px);
    grid-template-columns: 190px minmax(0, 1fr) 10px var(--preview-width);
    height: calc(100vh - 100px);
    overflow: hidden;
  }
  /* 左栏：步骤导航 */
  .col-nav { background:#1e2d40; color:#fff; display:flex; flex-direction:column; overflow-y:auto; padding:24px 0; }
  .col-nav-header { padding:0 20px 18px; border-bottom:1px solid rgba(255,255,255,.1); margin-bottom:8px; }
  .col-nav-header h2 { font-size:14px; font-weight:700; color:#90cdf4; }
  .col-nav-header p { font-size:11px; color:rgba(255,255,255,.4); margin-top:4px; }
  .step-item { display:flex; align-items:flex-start; gap:12px; padding:14px 20px; cursor:pointer; transition:background .2s; border-left:3px solid transparent; }
  .step-item:hover { background:rgba(255,255,255,.06); }
  .step-item.active { background:rgba(43,108,176,.3); border-left-color:#63b3ed; }
  .step-num { width:26px; height:26px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:11px; font-weight:800; flex-shrink:0; background:rgba(255,255,255,.1); color:#a0c4e8; border:1.5px solid rgba(255,255,255,.2); }
  .step-item.active .step-num { background:#2b6cb0; color:#fff; border-color:#63b3ed; }
  .step-item.done .step-num { background:#276749; color:#fff; border-color:#48bb78; }
  .step-info { flex:1; min-width:0; }
  .step-title { font-size:12px; font-weight:700; color:#e2e8f0; line-height:1.3; }
  .step-item.active .step-title { color:#90cdf4; }
  .step-desc { font-size:10px; color:rgba(255,255,255,.38); margin-top:3px; line-height:1.5; }
  .step-val { font-size:10px; color:#68d391; margin-top:5px; background:rgba(104,211,145,.12); border-radius:4px; padding:2px 6px; display:inline-block; max-width:100%; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
  .step-divider { height:1px; background:rgba(255,255,255,.07); margin:4px 20px; }
  .calc-btn-wrap { padding:16px 20px; margin-top:auto; border-top:1px solid rgba(255,255,255,.1); }
  .btn-calc-nav { width:100%; padding:11px; background:linear-gradient(135deg,#2b6cb0,#3182ce); color:#fff; border:none; border-radius:8px; font-size:14px; font-weight:700; cursor:pointer; transition:opacity .2s; }
  .btn-calc-nav:hover { opacity:.88; }

  /* 中栏：表单 */
  .col-form { background:#f4f6fa; overflow-y:auto; padding:20px; border-left:1px solid #e2e8f0; border-right:1px solid #e2e8f0; }
  .form-step-panel { display:none; }
  .form-step-panel.active { display:block; }
  .step-panel-title { font-size:15px; font-weight:800; color:#1a365d; margin-bottom:16px; padding-bottom:10px; border-bottom:2px solid #bee3f8; display:flex; align-items:center; gap:10px; }
  .step-badge { background:#2b6cb0; color:#fff; font-size:10px; padding:2px 8px; border-radius:10px; font-weight:700; }

  /* 右栏：预览 */
  .col-preview { background:#fff; overflow-y:auto; display:flex; flex-direction:column; }
  .col-preview-header { background:linear-gradient(135deg,#1e2d40,#2b6cb0); color:#fff; padding:14px 16px; font-size:12px; font-weight:700; letter-spacing:.5px; flex-shrink:0; }
  .col-preview-body { flex:1; overflow-y:auto; padding:14px; }
  .preview-focus-spacer { height:0; pointer-events:none; flex:0 0 auto; transition:height .18s ease; }
  .preview-img-wrap { text-align:center; margin-bottom:12px; }
  .preview-img { width:100%; aspect-ratio:1/1; border-radius:8px; object-fit:cover; border:1.5px solid #e2e8f0; background:#fafafa; cursor:zoom-in; }
  .header-empty-preview { display:none; width:100%; aspect-ratio:1/1; border-radius:8px; border:1.5px dashed #d8c7a3; background:repeating-linear-gradient(90deg,#f5f2eb 0,#f5f2eb 8px,#ebe4d8 8px,#ebe4d8 16px); color:#5f5136; align-items:center; justify-content:center; font-weight:800; font-size:13px; }
  #headerPreviewCard.is-empty .preview-img { display:none; }
  #headerPreviewCard.is-empty .header-empty-preview { display:flex; }
  #headerPreviewCard.is-empty .preview-desc { display:none; }
  .preview-heading-name { font-size:12px; font-weight:700; color:#2b6cb0; margin:8px 0 5px; text-align:center; }
  .preview-desc { font-size:10.5px; color:#596578; line-height:1.6; background:#f7fafc; padding:10px 12px; border-radius:6px; border-left:3px solid #cbd5e0; margin-bottom:12px; }
  .preview-stack { display:flex; flex-direction:column; gap:12px; margin-bottom:12px; }
  .preview-card { border:1px solid #d9e3f0; border-radius:8px; background:#fff; overflow:hidden; transition:border-color .18s ease, box-shadow .18s ease; }
  .preview-card.active { border-color:#90cdf4; box-shadow:0 6px 14px rgba(43,108,176,.10); }
  .preview-card.hidden { display:none; }
  .preview-card-toggle { width:100%; border:0; background:#f7fafc; color:#2d3748; padding:9px 10px; display:flex; align-items:center; justify-content:space-between; gap:8px; cursor:pointer; font:inherit; text-align:left; }
  .preview-card-toggle strong { font-size:12px; color:#1a365d; }
  .preview-card-meta { font-size:10.5px; color:#718096; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width:55%; }
  .preview-card-body { padding:10px; border-top:1px solid #edf2f7; }
  .preview-card.collapsed .preview-card-body { display:none; }
  .preview-card.collapsed .preview-card-toggle { background:#fff; }
  .preview-grid { display:grid; gap:10px; }
  .preview-grid.two-up { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .preview-figure { min-width:0; }
  .preview-frame { position:relative; width:100%; aspect-ratio:4/3; border-radius:7px; border:1px solid #e2e8f0; background:#f8fafc; overflow:hidden; display:flex; align-items:center; justify-content:center; }
  .preview-thumb { width:100%; height:100%; object-fit:cover; display:block; cursor:zoom-in; }
  .preview-empty { display:none; font-size:11px; color:#718096; }
  .preview-figure.is-empty .preview-thumb { display:none; cursor:default; }
  .preview-figure.is-empty .preview-empty { display:block; }
  .preview-caption { margin-top:5px; font-size:10.5px; font-weight:700; color:#4a5568; text-align:center; }
  .preview-card .preview-desc { margin:10px 0 0; }
  .image-lightbox {
    position:fixed; inset:0; z-index:70; display:flex; align-items:center; justify-content:center;
    padding:24px; background:rgba(15,23,42,.78); opacity:0; pointer-events:none;
    transition:opacity .16s ease;
  }
  .image-lightbox.open { opacity:1; pointer-events:auto; }
  .image-lightbox-panel { width:min(1120px,94vw); height:min(90vh,900px); max-height:90vh; display:flex; flex-direction:column; gap:10px; }
  .image-lightbox-bar { display:flex; align-items:center; justify-content:space-between; gap:12px; color:#fff; }
  .image-lightbox-title { min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; font-size:13px; font-weight:700; }
  .image-lightbox-close {
    border:1px solid rgba(255,255,255,.35); border-radius:7px; background:rgba(255,255,255,.12);
    color:#fff; padding:7px 12px; cursor:pointer; font:inherit; font-size:12px; font-weight:700;
  }
  .image-lightbox-close:hover { background:rgba(255,255,255,.2); }
  .image-lightbox-canvas {
    flex:1; min-height:0; overflow:hidden; display:flex; align-items:center; justify-content:center;
    cursor:zoom-in; touch-action:none;
  }
  .image-lightbox-canvas.is-zoomed { cursor:grab; }
  .image-lightbox-canvas.is-dragging { cursor:grabbing; }
  .image-lightbox-img {
    display:block; max-width:100%; max-height:100%; width:auto; height:auto; object-fit:contain;
    border-radius:0; background:transparent; box-shadow:0 12px 28px rgba(0,0,0,.28);
    transform:translate(var(--lightbox-pan-x,0px),var(--lightbox-pan-y,0px)) scale(var(--lightbox-zoom,1));
    transform-origin:0 0; transition:transform .12s ease;
    user-select:none;
  }
  .image-lightbox-img.is-zoomed { cursor:inherit; }
  .image-lightbox-canvas.is-dragging .image-lightbox-img { transition:none; }
  @media (prefers-reduced-motion: reduce) {
    .preview-card { transition:none; }
    .image-lightbox, .image-lightbox-img { transition:none; }
  }
  .summary-card { background:#f7fafc; border-radius:8px; border:1px solid #e2e8f0; padding:10px 12px; margin-bottom:12px; }
  .summary-title { font-size:10px; font-weight:800; color:#4a5568; text-transform:uppercase; letter-spacing:.5px; margin-bottom:7px; border-bottom:1px solid #e2e8f0; padding-bottom:4px; }
  .s-row { display:flex; justify-content:space-between; padding:3px 0; border-bottom:1px dashed #edf2f7; font-size:10.5px; }
  .s-row:last-child { border-bottom:none; }
  .s-label { color:#718096; }
  .s-val { font-weight:700; color:#2d3748; }
  .s-val.blue { color:#2b6cb0; }
  .s-val.green { color:#276749; }

  @media (max-width:1100px) { 
    .three-col { grid-template-columns: 140px minmax(0, 1fr) 10px var(--preview-width); } 
  }
  @media (max-width:550px) {
    .three-col { grid-template-columns:1fr; height:auto; overflow:visible; }
    .preview-resizer { display:none; }
    .col-nav,.col-form,.col-preview { height:auto; overflow:visible; }
    .grid2,.grid3 { grid-template-columns:1fr; }
  }

  /* ===== Huashu visual pass: showroom-grade pricing workspace ===== */
  :root {
    --showroom-bg: #eef1ef;
    --showroom-paper: #fbfaf6;
    --showroom-panel: #ffffff;
    --showroom-panel-soft: #f5f7f3;
    --showroom-ink: #202722;
    --showroom-muted: #667268;
    --showroom-line: #d9dfd6;
    --showroom-line-strong: #bfc8bd;
    --showroom-green: #315e4e;
    --showroom-green-deep: #203c34;
    --showroom-brass: #a57b3d;
    --showroom-brass-soft: #efe4d0;
    --showroom-danger: #a33a2a;
    --showroom-ok: #2f6d4f;
    --showroom-radius: 8px;
    --showroom-shadow: 0 18px 44px rgba(32, 39, 34, .10);
    --showroom-shadow-soft: 0 1px 2px rgba(32, 39, 34, .08);
  }

  html {
    background: var(--showroom-bg);
  }

  body {
    min-height: 100vh;
    font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
    color: var(--showroom-ink);
    background:
      linear-gradient(90deg, rgba(32, 39, 34, .035) 1px, transparent 1px),
      linear-gradient(0deg, rgba(32, 39, 34, .025) 1px, transparent 1px),
      linear-gradient(180deg, #f8f7f1 0%, var(--showroom-bg) 58%, #e8ede9 100%);
    background-size: 32px 32px, 32px 32px, auto;
    letter-spacing: 0;
  }

  header {
    min-height: 72px;
    padding: 16px 28px;
    background:
      linear-gradient(180deg, rgba(255, 255, 255, .06), transparent),
      #17241f;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
    box-shadow: 0 12px 30px rgba(23, 36, 31, .18);
  }

  header h1 {
    font-size: 19px;
    font-weight: 760;
    letter-spacing: 0;
  }

  header span {
    color: rgba(255, 255, 255, .64);
    opacity: 1;
  }

  .tabs {
    min-height: 48px;
    align-items: stretch;
    padding: 0 28px;
    background: rgba(251, 250, 246, .94);
    border-bottom: 1px solid var(--showroom-line);
    box-shadow: 0 1px 0 rgba(255, 255, 255, .75) inset;
  }

  .tab {
    display: flex;
    align-items: center;
    padding: 0 20px;
    margin-bottom: 0;
    border-bottom-width: 2px;
    color: var(--showroom-muted);
    font-size: 13px;
    font-weight: 760;
    transition: color .16s ease, border-color .16s ease, background .16s ease;
  }

  .tab.active {
    color: var(--showroom-green-deep);
    border-bottom-color: var(--showroom-brass);
    background: linear-gradient(180deg, rgba(165, 123, 61, .06), transparent);
  }

  .tab:hover:not(.active) {
    color: var(--showroom-green);
    background: rgba(49, 94, 78, .04);
  }

  .three-col {
    --preview-width: clamp(320px, 24vw, 460px);
    grid-template-columns: 214px minmax(560px, 1fr) 10px var(--preview-width);
    height: calc(100vh - 120px);
    border-top: 1px solid rgba(255, 255, 255, .72);
  }

  .col-nav {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, .04), transparent 210px),
      #18231f;
    padding: 22px 0;
    border-right: 1px solid rgba(255, 255, 255, .08);
  }

  .col-nav-header {
    padding: 0 18px 18px;
    border-bottom-color: rgba(231, 224, 207, .13);
  }

  .col-nav-header h2 {
    color: #f3ead8;
    font-size: 13px;
    letter-spacing: 0;
  }

  .col-nav-header p {
    color: rgba(239, 228, 208, .48);
  }

  .step-item {
    padding: 14px 18px;
    border-left-width: 2px;
    transition: background .16s ease, border-color .16s ease;
  }

  .step-item:hover {
    background: rgba(255, 255, 255, .055);
  }

  .step-item.active {
    background: rgba(239, 228, 208, .10);
    border-left-color: var(--showroom-brass);
  }

  .step-num {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: rgba(255, 255, 255, .075);
    color: rgba(243, 234, 216, .74);
    border-color: rgba(243, 234, 216, .18);
  }

  .step-item.active .step-num,
  .step-item.done .step-num {
    background: var(--showroom-brass);
    border-color: var(--showroom-brass);
    color: #fff;
  }

  .step-title {
    color: rgba(255, 255, 255, .86);
    font-weight: 760;
  }

  .step-item.active .step-title {
    color: #fff;
  }

  .step-desc {
    color: rgba(255, 255, 255, .40);
  }

  .step-val {
    color: #f2d9ad;
    background: rgba(165, 123, 61, .14);
    border: 1px solid rgba(165, 123, 61, .22);
    border-radius: 6px;
  }

  .step-divider,
  .calc-btn-wrap {
    border-color: rgba(231, 224, 207, .12);
  }

  .btn-calc-nav,
  .btn-calc,
  .sku-lookup-btn {
    border-radius: var(--showroom-radius);
    background: var(--showroom-green) !important;
    box-shadow: 0 8px 20px rgba(49, 94, 78, .16);
    letter-spacing: 0;
    transition: background .16s ease, transform .16s ease, box-shadow .16s ease, opacity .16s ease;
  }

  .btn-calc-nav:hover,
  .btn-calc:hover,
  .sku-lookup-btn:hover {
    background: var(--showroom-green-deep) !important;
    opacity: 1;
    box-shadow: 0 12px 24px rgba(49, 94, 78, .20);
  }

  .btn-calc-nav:active,
  .btn-calc:active,
  .sku-lookup-btn:active,
  .toggle-btn:active,
  .tab:active,
  .result-tab:active {
    transform: translateY(1px);
  }

  .col-form {
    padding: 22px;
    background: rgba(246, 247, 242, .86);
    border-left: 0;
    border-right: 1px solid var(--showroom-line);
  }

  .form-step-panel.active {
    animation: showroomRise .22s ease both;
  }

  .card,
  .summary-card {
    border: 1px solid var(--showroom-line);
    border-radius: var(--showroom-radius);
    background: rgba(255, 255, 255, .96);
    box-shadow: var(--showroom-shadow-soft);
  }

  .card {
    padding: 18px;
    margin-bottom: 14px;
  }

  .room-planner-card {
    background:
      linear-gradient(180deg, rgba(239, 228, 208, .38), transparent 58%),
      #fff;
  }

  .room-planner-card::after {
    height: 2px;
    background: linear-gradient(90deg, var(--showroom-green), var(--showroom-brass));
  }

  .card-title,
  .step-panel-title,
  .section-label {
    color: var(--showroom-green-deep);
    border-left: 0;
    padding-left: 0;
    letter-spacing: 0;
  }

  .card-title {
    display: flex;
    align-items: center;
    min-height: 22px;
    margin-bottom: 14px;
    font-size: 14px;
    font-weight: 820;
  }

  .card-title::before {
    content: "";
    width: 4px;
    height: 18px;
    border-radius: 4px;
    margin-right: 9px;
    background: var(--showroom-brass);
  }

  .step-panel-title {
    border-bottom: 1px solid var(--showroom-line);
    font-size: 15px;
    font-weight: 820;
  }

  .step-badge {
    border-radius: 6px;
    background: var(--showroom-green);
  }

  .field {
    gap: 6px;
  }

  .field label {
    color: var(--showroom-muted);
    font-size: 12px;
    font-weight: 760;
  }

  .field input,
  .field select,
  .sku-lookup-row input {
    min-height: 38px;
    border: 1px solid var(--showroom-line-strong);
    border-radius: var(--showroom-radius);
    background: #fff;
    color: var(--showroom-ink);
    transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
  }

  .field input:focus,
  .field select:focus,
  .sku-lookup-row input:focus {
    border-color: var(--showroom-green);
    box-shadow: 0 0 0 3px rgba(49, 94, 78, .12);
  }

  .field .unit {
    color: #7d877e;
  }

  .locked-input {
    background: #eef2ec !important;
    color: #657165 !important;
    border-color: #dfe5dc !important;
  }

  .toggle-row {
    gap: 8px;
    margin-bottom: 14px;
  }

  .toggle-btn {
    min-height: 36px;
    border-radius: var(--showroom-radius);
    border: 1px solid var(--showroom-line-strong);
    background: #fff;
    color: var(--showroom-green-deep);
    font-size: 13px;
    font-weight: 760;
    box-shadow: none;
    transition: background .16s ease, border-color .16s ease, color .16s ease, transform .16s ease, box-shadow .16s ease;
  }

  .toggle-btn:hover:not(:disabled):not(.disabled) {
    border-color: var(--showroom-green);
    box-shadow: 0 0 0 3px rgba(49, 94, 78, .08);
  }

  .toggle-btn.active,
  #fabricType .toggle-btn.active:disabled {
    background: var(--showroom-green);
    color: #fff;
    border-color: var(--showroom-green);
    box-shadow: 0 8px 18px rgba(49, 94, 78, .18);
  }

  .toggle-btn.disabled,
  .toggle-btn:disabled {
    background: #eef2ec;
    color: #9ba49c;
    opacity: 1;
    filter: none;
  }

  .sku-status,
  .height-limit-status {
    display: block;
    border-radius: var(--showroom-radius);
    padding: 9px 10px;
    background: var(--showroom-panel-soft);
    border: 1px solid var(--showroom-line);
  }

  .height-limit-status {
    display: none;
  }

  .sku-status.ok,
  .height-limit-status.ok {
    display: block;
    color: var(--showroom-ok);
    background: #eaf5ef;
    border-color: rgba(47, 109, 79, .22);
  }

  .sku-status.err,
  .height-limit-status.err {
    display: block;
    color: var(--showroom-danger);
    background: #fbebe8;
    border-color: rgba(163, 58, 42, .20);
  }
  .sku-status:empty {
    display: none !important;
  }

  .sku-param-grid,
  .room-sizing-summary {
    gap: 8px;
  }

  .room-sizing-item {
    border-radius: var(--showroom-radius);
    border-color: var(--showroom-line);
    background: var(--showroom-paper);
  }

  .room-sizing-item strong {
    color: var(--showroom-green-deep);
  }

  .col-preview {
    background:
      linear-gradient(180deg, #fbfaf6, #f0f3ee);
    border-left: 1px solid rgba(255, 255, 255, .82);
  }

  .col-preview-header {
    min-height: 46px;
    display: flex;
    align-items: center;
    background: #24312b;
    color: #f6efe1;
    padding: 14px 18px;
    letter-spacing: 0;
  }

  .col-preview-body {
    padding: 16px;
  }

  .preview-stack {
    gap: 14px;
  }

  .preview-card {
    border-color: var(--showroom-line);
    border-radius: var(--showroom-radius);
    background: #fff;
    box-shadow: var(--showroom-shadow-soft);
    transition: border-color .16s ease, box-shadow .16s ease, transform .16s ease;
  }

  .preview-card.active {
    border-color: rgba(165, 123, 61, .55);
    box-shadow: var(--showroom-shadow);
  }

  .preview-card:not(.collapsed):not(.hidden) {
    animation: showroomRise .24s ease both;
  }

  .preview-card-toggle {
    min-height: 42px;
    background: #fbfaf6;
    border-bottom: 1px solid var(--showroom-line);
    color: var(--showroom-ink);
  }

  .preview-card.collapsed .preview-card-toggle {
    background: #fff;
    border-bottom: 0;
  }

  .preview-card-toggle strong {
    color: var(--showroom-green-deep);
    font-size: 13px;
  }

  .preview-card-meta {
    color: var(--showroom-muted);
  }

  .preview-card-body {
    padding: 12px;
    border-top: 0;
  }

  .preview-grid.two-up {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .preview-frame,
  .preview-img {
    border-radius: var(--showroom-radius);
    border-color: var(--showroom-line);
    background: #eff2ee;
  }

  .preview-frame {
    aspect-ratio: 4 / 3.15;
  }

  .preview-img {
    aspect-ratio: 4 / 3;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .72);
  }

  .preview-thumb,
  .preview-img {
    transition: transform .22s ease, filter .22s ease;
  }

  .preview-frame:hover .preview-thumb,
  .preview-img:hover {
    transform: scale(1.015);
    filter: saturate(1.03) contrast(1.02);
  }

  .preview-caption,
  .preview-heading-name {
    color: var(--showroom-green-deep);
  }

  .preview-desc {
    border-left: 0;
    border: 1px solid var(--showroom-line);
    border-radius: var(--showroom-radius);
    background: var(--showroom-panel-soft);
    color: var(--showroom-muted);
  }

  .summary-card {
    padding: 12px;
    background: #fff;
  }

  .summary-title {
    color: var(--showroom-green-deep);
    border-bottom-color: var(--showroom-line);
    text-transform: none;
    letter-spacing: 0;
  }

  .s-row {
    padding: 6px 0;
    border-bottom-color: #e7ebe5;
  }

  .s-label {
    color: var(--showroom-muted);
  }

  .s-val,
  .s-val.blue,
  .s-val.green {
    color: var(--showroom-green-deep);
  }

  #curtainResult {
    border: 1px solid rgba(165, 123, 61, .26);
    border-radius: var(--showroom-radius);
    background: #fff;
    padding: 12px;
    box-shadow: var(--showroom-shadow);
  }

  .result-tabs {
    border: 1px solid var(--showroom-line);
    border-radius: var(--showroom-radius);
    background: var(--showroom-panel-soft);
    overflow: hidden;
    margin-bottom: 12px;
  }

  .result-tab {
    color: var(--showroom-muted);
    border-bottom: 0;
    transition: background .16s ease, color .16s ease;
  }

  .result-tab.active {
    background: var(--showroom-green);
    border-bottom: 0;
    color: #fff;
  }

  .result-tab:hover:not(.active) {
    background: #eef4ed;
    color: var(--showroom-green-deep);
  }

  /* 客户报价预览与导出报价单保持同一层级、颜色与金额结构。 */
  #paneCurtainCustomer .customer-quote-preview {
    color: #172522;
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 12px;
  }

  #paneCurtainCustomer .customer-quote-export-top-meta {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin: 0 0 10px;
    padding: 0 0 8px;
    border-bottom: 1px solid #dbe4e1;
    font-size: 10px;
  }

  #paneCurtainCustomer .customer-quote-export-top-meta div {
    display: flex;
    gap: 6px;
    color: #65736f;
  }

  #paneCurtainCustomer .customer-quote-export-top-meta strong {
    min-width: 0;
    color: #174f48;
    font-weight: 700;
    overflow-wrap: anywhere;
  }

  #paneCurtainCustomer .customer-quote-export-info-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    margin-top: 10px;
  }

  #paneCurtainCustomer .customer-quote-export-module {
    border: 1px solid #cbd7d3;
    padding: 9px 10px;
    background: #fff;
  }

  #paneCurtainCustomer .customer-quote-export-module h2,
  #paneCurtainCustomer .customer-quote-export-items h2 {
    margin: 0 0 7px;
    padding-bottom: 6px;
    border-bottom: 1px solid #dbe4e1;
    color: #174f48;
    font-size: 12px;
    line-height: 1.3;
  }

  #paneCurtainCustomer .customer-quote-export-info-row {
    display: grid;
    grid-template-columns: 78px minmax(0, 1fr);
    gap: 8px;
    padding: 2px 0;
  }

  #paneCurtainCustomer .customer-quote-export-info-row span {
    color: #697672;
  }

  #paneCurtainCustomer .customer-quote-export-info-row strong {
    min-width: 0;
    font-weight: 600;
    overflow-wrap: anywhere;
  }

  #paneCurtainCustomer .customer-quote-export-summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin: 9px 0;
    padding: 10px;
    color: #172522;
    background: #f7faf8;
    border: 1px solid #cbd7d3;
  }

  #paneCurtainCustomer .customer-quote-export-summary div:first-child {
    grid-column: 1 / -1;
    padding-bottom: 7px;
    border-bottom: 1px solid #dbe4e1;
  }

  #paneCurtainCustomer .customer-quote-export-summary span,
  #paneCurtainCustomer .customer-quote-export-summary strong {
    display: block;
  }

  #paneCurtainCustomer .customer-quote-export-summary span {
    margin-bottom: 3px;
    color: #697672;
    font-size: 9px;
  }

  #paneCurtainCustomer .customer-quote-export-summary strong {
    color: #174f48;
    font-size: 12px;
  }

  #paneCurtainCustomer .customer-quote-export-scheme {
    margin-bottom: 9px;
  }

  #paneCurtainCustomer .customer-quote-export-items {
    border-top: 2px solid #174f48;
  }

  #paneCurtainCustomer .customer-quote-export-items h2 {
    margin: 0;
    padding: 9px 2px 7px;
  }

  #paneCurtainCustomer .customer-quote-export-item-head,
  #paneCurtainCustomer .customer-quote-export-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 42px 58px 62px;
    align-items: center;
    gap: 6px;
  }

  #paneCurtainCustomer .customer-quote-export-item-head {
    padding: 6px 7px;
    color: #62716d;
    background: #eef4f2;
    font-size: 8.5px;
    text-align: right;
  }

  #paneCurtainCustomer .customer-quote-export-item-head span:first-child {
    text-align: left;
  }

  #paneCurtainCustomer .customer-quote-export-item {
    min-height: 48px;
    padding: 5px 7px;
    border-bottom: 1px solid #dbe4e1;
    text-align: right;
  }

  #paneCurtainCustomer .customer-quote-export-item-copy {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    text-align: left;
  }

  #paneCurtainCustomer .customer-quote-export-item-copy > b {
    color: #8da29c;
    font-size: 14px;
  }

  #paneCurtainCustomer .customer-quote-export-item-copy span,
  #paneCurtainCustomer .customer-quote-export-item-copy strong,
  #paneCurtainCustomer .customer-quote-export-item-copy small {
    display: block;
  }

  #paneCurtainCustomer .customer-quote-export-item-copy strong {
    font-size: 11px;
  }

  #paneCurtainCustomer .customer-quote-export-item-copy small {
    margin-top: 2px;
    color: #66736f;
    font-size: 9px;
    line-height: 1.35;
  }

  #paneCurtainCustomer .customer-quote-export-item > strong {
    color: #174f48;
    font-size: 11px;
  }

  #paneCurtainCustomer .customer-quote-export-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    padding: 10px 11px;
    color: #fff;
    background: #174f48;
  }

  #paneCurtainCustomer .customer-quote-export-total span {
    font-size: 11px;
    font-weight: 700;
  }

  #paneCurtainCustomer .customer-quote-export-total small {
    display: block;
    margin-top: 2px;
    color: #d8e7e3;
    font-size: 8px;
    font-weight: 400;
  }

  #paneCurtainCustomer .customer-quote-export-total > strong {
    color: #fff;
    font-size: 18px;
    white-space: nowrap;
  }

  #paneCurtainCustomer .customer-quote-export-note {
    margin: 7px 0 0;
    color: #66736f;
    font-size: 8.5px;
    line-height: 1.45;
    text-align: right;
  }

  .btn-pdf,
  .btn-print {
    min-height: 36px;
    border-radius: var(--showroom-radius);
    transition: background .16s ease, transform .16s ease;
  }

  .btn-pdf {
    background: var(--showroom-green);
  }

  .btn-pdf:hover {
    background: var(--showroom-green-deep);
  }

  .btn-print {
    background: #24312b;
  }

  .btn-print:hover {
    background: #17241f;
  }

  .p-title {
    color: var(--showroom-green-deep);
    border-bottom-color: var(--showroom-green);
  }

  .p-block {
    border-color: var(--showroom-line);
    border-radius: var(--showroom-radius);
    background: #fff;
  }

  .p-block-title {
    color: var(--showroom-green-deep);
    border-bottom-color: var(--showroom-line);
  }

  .p-row {
    border-bottom-color: #e9ede8;
  }

  .image-lightbox {
    background: rgba(12, 18, 15, .86);
  }

  .image-lightbox-close {
    border-radius: var(--showroom-radius);
  }

  .image-lightbox-img {
    box-shadow: 0 18px 60px rgba(0, 0, 0, .45);
  }

  @keyframes showroomRise {
    from {
      opacity: 0;
      transform: translateY(8px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @media (max-width: 1260px) {
    .three-col {
      --preview-width: clamp(280px, 25vw, 400px);
      grid-template-columns: 184px minmax(430px, 1fr) 10px var(--preview-width);
    }

    .col-form,
    .col-preview-body {
      padding: 16px;
    }
  }

  @media (max-width: 980px) {
    header {
      flex-wrap: wrap;
      padding: 14px 18px;
    }

    .tabs {
      overflow-x: auto;
      padding: 0 14px;
    }

    .three-col {
      grid-template-columns: minmax(0, 1fr);
      height: auto;
      overflow: visible;
    }

    .preview-resizer {
      display: none;
    }

    .col-nav,
    .col-form,
    .col-preview {
      height: auto;
      overflow: visible;
    }

    .col-form,
    .col-preview {
      min-width: 0;
      width: 100%;
    }

    .col-nav {
      display: none;
    }

    .col-preview {
      border-left: 0;
    }

    .step-item {
      border: 1px solid rgba(243, 234, 216, .12);
      border-left: 1px solid rgba(243, 234, 216, .12);
      border-radius: var(--showroom-radius);
      padding: 10px;
      min-width: 0;
    }
  }

  @media (max-width: 680px) {
    .col-nav {
      grid-template-columns: 1fr;
    }

    .grid2,
    .grid3,
    .preview-grid.two-up,
    .room-sizing-summary {
      grid-template-columns: 1fr;
    }

    .card {
      padding: 14px;
    }
  }

  /* ===== Deep layout pass: not just a skin ===== */
  header {
    position: relative;
    z-index: 5;
  }

  header > div {
    display: grid;
    gap: 3px;
  }

  .tabs {
    position: relative;
    z-index: 4;
  }

  .three-col {
    --preview-width: clamp(320px, 24vw, 460px);
    grid-template-columns: 226px minmax(640px, 1fr) 10px var(--preview-width);
  }

  .col-nav {
    position: relative;
    padding-top: 26px;
  }

  .col-nav::before {
    content: "";
    position: absolute;
    top: 104px;
    bottom: 116px;
    left: 31px;
    width: 1px;
    background: linear-gradient(180deg, rgba(165, 123, 61, .55), rgba(255, 255, 255, .08));
    pointer-events: none;
  }

  .step-item {
    position: relative;
    margin: 0 12px 8px;
    padding: 13px 12px;
    border: 1px solid rgba(231, 224, 207, .09);
    border-radius: 8px;
    background: rgba(255, 255, 255, .025);
  }

  .step-item.active {
    border-color: rgba(165, 123, 61, .38);
  }

  .step-divider {
    display: none;
  }

  .step-num {
    position: relative;
    z-index: 1;
  }

  .col-form {
    padding: 24px;
  }

  #panel-step1.form-step-panel.active {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
    gap: 16px;
  }

  #panel-step1 > .room-planner-card {
    grid-column: span 7;
    min-height: 258px;
  }

  #panel-step1 > .room-planner-card + .card {
    grid-column: span 5;
    min-height: 258px;
  }

  #panel-step1 > .step-panel-title,
  #panel-step1 > .btn-calc {
    grid-column: 1 / -1;
  }

  #panel-step1 > .fabric-type-card,
  #panel-step1 > .header-style-card,
  #panel-step1 > .hem-config-card {
    grid-column: 1 / -1;
  }

  #panel-step1 > .pleat-ratio-card,
  #panel-step1 > .open-mode-card,
  #panel-step1 > #liningChoiceCard {
    grid-column: span 4;
    min-height: 118px;
  }

  .lining-detail-panel {
    margin-top: 14px;
  }

  .lining-detail-panel[hidden] {
    display: none !important;
  }

  .room-planner-card .grid3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .room-planner-card .grid3 .field:first-child {
    grid-column: 1 / -1;
  }

  .sku-lookup-row {
    grid-template-columns: 1fr;
  }

  .sku-lookup-btn {
    width: 100%;
    min-height: 42px;
  }

  #fabricType.toggle-row,
  #paperType.toggle-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }

  #panel-step1 :is(#pleatRatio, #openMode, #hasLining, #hasShaping).toggle-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(96px, max-content));
    justify-content: start;
    align-items: start;
    gap: 8px;
    margin-bottom: 0;
  }

  #panel-step1 #openMode.toggle-row,
  #panel-step1 #hasLining.toggle-row,
  #panel-step1 #hasShaping.toggle-row {
    grid-template-columns: repeat(auto-fit, minmax(128px, max-content));
  }

  #panel-step1 #sideHem.toggle-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(76px, 92px));
    justify-content: start;
    gap: 8px;
    margin-bottom: 0;
  }

  #headerStyleBasic {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 9px;
  }

  #headerStyleBasic .toggle-btn {
    min-height: 50px;
    padding: 10px 12px;
    white-space: normal;
    text-align: left;
  }

  #panel-step1 :is(#pleatRatio, #openMode, #hasLining, #hasShaping) .toggle-btn,
  #panel-step1 #sideHem .toggle-btn {
    min-height: 40px;
    padding: 9px 14px;
    white-space: nowrap;
    width: auto;
    text-align: center;
  }

  #panel-step1 #pleatRatio .toggle-btn {
    min-width: 96px;
  }

  #panel-step1 :is(#openMode, #hasLining, #hasShaping) .toggle-btn {
    min-width: 128px;
  }

  #panel-step1 #sideHem .toggle-btn {
    min-width: 76px;
  }

  .craft-questionnaire {
    grid-column: 1 / -1;
    padding: 0;
    overflow: hidden;
  }

  .craft-questionnaire-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 22px;
    border-bottom: 1px solid var(--showroom-line);
    background: #fffefa;
  }

  .craft-questionnaire-title {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--showroom-green-deep);
    font-size: 18px;
    font-weight: 820;
  }

  .craft-questionnaire-title::before {
    content: "";
    width: 4px;
    height: 20px;
    border-radius: 999px;
    background: var(--showroom-brass);
  }

  .craft-question-row {
    display: grid;
    grid-template-columns: minmax(132px, 168px) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
    padding: 18px 22px;
    border-bottom: 1px solid #e8eee8;
    background: rgba(255, 255, 255, .62);
  }

  .craft-question-row:last-child {
    border-bottom: 0;
  }

  .craft-question-copy {
    padding-top: 6px;
  }

  .craft-question-title {
    color: var(--showroom-green-deep);
    font-size: 14px;
    font-weight: 820;
    line-height: 1.35;
  }

  .craft-question-help {
    margin-top: 5px;
    color: var(--showroom-muted);
    font-size: 12px;
    line-height: 1.45;
  }

  .craft-question-control {
    min-width: 0;
  }

  .craft-question-row .toggle-row,
  .craft-question-row #fabricType.toggle-row,
  .craft-question-row #headerStyleBasic,
  .craft-question-row #pleatRatio.toggle-row,
  .craft-question-row #openMode.toggle-row,
  .craft-question-row #hasLining.toggle-row,
  .craft-question-row #hasShaping.toggle-row,
  .craft-question-row #sideHem.toggle-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-start;
    gap: 8px;
    margin-bottom: 0;
  }

  .craft-question-row .toggle-btn {
    width: auto;
    min-height: 40px;
    padding: 9px 16px;
    white-space: nowrap;
    text-align: center;
  }

  .craft-question-row #headerStyleBasic .toggle-btn {
    min-width: 148px;
    text-align: center;
  }

  .craft-question-row #pleatRatio .toggle-btn,
  .craft-question-row #sideHem .toggle-btn,
  .craft-question-row #fabricType .toggle-btn {
    min-width: 76px;
  }

  .craft-question-row #openMode .toggle-btn,
  .craft-question-row #hasLining .toggle-btn,
  .craft-question-row #hasShaping .toggle-btn {
    min-width: 128px;
  }

  .craft-question-row .lining-detail-panel {
    width: min(360px, 100%);
    margin-top: 14px;
  }

  .lining-image-preview {
    width: 100%;
    margin: 10px 0 0;
    overflow: hidden;
    border: 1px solid var(--showroom-line);
    border-radius: 4px;
    background: #fbfaf6;
  }

  .lining-image-preview[hidden] {
    display: none !important;
  }

  .lining-image-preview img {
    display: block;
    width: 100%;
    max-height: 180px;
    object-fit: contain;
  }

  .summary-lining-image {
    margin: 12px 0 4px;
    padding-top: 12px;
    border-top: 1px solid var(--showroom-line);
  }

  .summary-lining-image[hidden] {
    display: none !important;
  }

  .summary-lining-image img {
    display: block;
    width: 100%;
    height: 132px;
    border: 1px solid var(--showroom-line);
    background: #fbfaf6;
    object-fit: contain;
  }

  .hem-question-grid {
    display: grid;
    grid-template-columns: minmax(170px, 260px) minmax(160px, 240px);
    gap: 18px;
    align-items: start;
  }

  .hem-question-grid .field {
    min-width: 0;
  }

  .accessory-fee-card {
    max-width: 100%;
  }

  .accessory-questionnaire {
    display: grid;
    gap: 18px;
  }

  .accessory-question-row {
    display: grid;
    grid-template-columns: minmax(130px, 170px) minmax(0, 1fr);
    gap: 18px;
    align-items: start;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--showroom-line);
  }

  .accessory-question-row:last-child {
    padding-bottom: 0;
    border-bottom: 0;
  }

  .accessory-question-title {
    font-weight: 800;
    color: var(--showroom-ink);
    line-height: 1.5;
  }

  .accessory-question-body {
    min-width: 0;
    display: grid;
    gap: 12px;
  }

  .accessory-question-row .toggle-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }

  .accessory-question-row .toggle-btn {
    width: auto;
    min-width: 104px;
    padding: 11px 18px;
  }

  .accessory-detail-inline {
    width: min(620px, 100%);
    margin-top: 2px;
  }

  .accessory-inline-grid {
    display: grid;
    grid-template-columns: minmax(140px, 1fr) minmax(140px, 1fr);
    gap: 14px;
    align-items: end;
  }

  .fixed-fee-line {
    color: #617064;
    font-size: 13px;
  }

  .fixed-fee-line strong {
    color: var(--showroom-ink);
    font-size: 15px;
  }

  @media (max-width: 760px) {
    .accessory-question-row,
    .accessory-inline-grid {
      grid-template-columns: 1fr;
    }
  }

  #panel-step2.form-step-panel.active {
    display: grid;
    gap: 16px;
  }

  .col-preview {
    position: relative;
    container-type: inline-size;
  }

  .preview-resizer {
    align-self: stretch;
    width: 100%;
    min-width: 10px;
    border: 0;
    padding: 0;
    margin: 0;
    cursor: col-resize;
    background: linear-gradient(180deg, rgba(165, 123, 61, .08), rgba(49, 94, 78, .08));
    position: relative;
    z-index: 2;
  }

  .preview-resizer::before {
    content: "";
    position: absolute;
    inset: 18px 4px;
    border-radius: 999px;
    background: rgba(49, 94, 78, .28);
    transition: background .16s ease, transform .16s ease;
  }

  .preview-resizer:hover::before,
  .preview-resizer:focus-visible::before,
  .three-col.is-resizing-preview .preview-resizer::before {
    background: var(--showroom-brass);
    transform: scaleX(1.35);
  }

  .preview-resizer:focus-visible {
    outline: 2px solid var(--showroom-brass);
    outline-offset: -2px;
  }

  body.is-resizing-preview {
    cursor: col-resize;
    user-select: none;
  }

  body.is-resizing-preview * {
    cursor: col-resize !important;
  }

  .col-preview-header {
    position: sticky;
    top: 0;
    z-index: 3;
    justify-content: space-between;
  }

  .col-preview-body {
    display: grid;
    grid-template-rows: auto auto auto;
    gap: 14px;
    padding: 18px;
  }

  .preview-stack {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .preview-card {
    display: grid;
    grid-template-rows: auto 1fr;
  }

  .preview-card-toggle {
    padding: 12px 14px;
  }

  .preview-card-toggle strong {
    font-size: 14px;
  }

  .preview-card-body {
    padding: 14px;
  }

  #skuPreviewCard .preview-card-body {
    padding: 12px;
  }

  #skuPreviewCard .preview-grid.two-up {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #skuPreviewCard .preview-frame {
    aspect-ratio: 1.24 / 1;
  }

  #skuPreviewCard .sku-param-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 14px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--showroom-line);
    font-size: 12px;
  }

  #skuPreviewCard .sku-param-grid span {
    min-width: 0;
    line-height: 1.45;
  }

  #skuPreviewCard .sku-param-grid b {
    overflow-wrap: anywhere;
  }

  @media (max-width: 720px) {
    #skuPreviewCard .sku-param-grid {
      grid-template-columns: 1fr;
    }
  }

  #headerPreviewCard .preview-card-body {
    display: grid;
    grid-template-columns: minmax(0, 1.38fr) minmax(210px, .62fr);
    grid-template-areas:
      "image title"
      "image desc";
    gap: 14px;
    align-items: start;
  }

  #headerPreviewCard.collapsed .preview-card-body {
    display: none;
  }

  #headerPreviewCard .preview-img-wrap {
    grid-area: image;
    margin-bottom: 0;
  }

  #headerPreviewCard .preview-heading-name {
    grid-area: title;
    margin: 0;
    padding: 12px;
    border: 1px solid var(--showroom-line);
    border-radius: 8px;
    background: #fbfaf6;
    text-align: left;
    font-size: 13px;
  }

  #headerPreviewCard .preview-desc {
    grid-area: desc;
    margin: 0;
    max-height: 330px;
    overflow: auto;
  }

  #headerPreviewCard .preview-img {
    aspect-ratio: 1 / 1;
    object-fit: contain;
  }

  @container (max-width: 420px) {
    #headerPreviewCard .preview-card-body {
      grid-template-columns: 1fr;
      grid-template-areas:
        "image"
        "title"
        "desc";
    }

    #headerPreviewCard .preview-img {
      aspect-ratio: 1 / 1;
    }

    #headerPreviewCard .preview-heading-name {
      font-size: 13px;
    }

    #headerPreviewCard .preview-desc {
      max-height: none;
    }
  }

  .summary-card {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 18px;
  }

  .summary-title {
    grid-column: 1 / -1;
  }

  .s-row {
    min-height: 34px;
    align-items: center;
  }

  #curtainResult {
    position: relative;
  }

  #curtainResult::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 3px;
    background: linear-gradient(180deg, var(--showroom-brass), var(--showroom-green));
    border-radius: 8px 0 0 8px;
  }

  .result-tabs {
    margin-left: 4px;
  }



  @media (max-width: 1380px) {
    .room-planner-card .grid3 {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  @media (max-width: 1320px) {
    .three-col {
      --preview-width: clamp(260px, 25vw, 400px);
      grid-template-columns: 210px minmax(500px, 1fr) 10px var(--preview-width);
    }

    #headerPreviewCard .preview-card-body {
      grid-template-columns: 1fr;
      grid-template-areas:
        "image"
        "title"
        "desc";
    }
  }

  @media (max-width: 1080px) {
    #headerStyleBasic {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  @media (max-width: 980px) {
    .col-nav::before {
      display: none;
    }

    .step-item {
      margin: 0;
    }
  }

  @media (max-width: 680px) {
    #headerStyleBasic,
    .summary-card,
    .room-planner-card .grid3 {
      grid-template-columns: 1fr;
    }

    .craft-question-row,
    .hem-question-grid {
      grid-template-columns: 1fr;
    }
  }

  #panel-step1 > .fabric-type-card,
  #panel-step1 > .header-style-card,
  #panel-step1 > .hem-config-card {
    grid-column: 1 / -1;
  }

  #panel-step1 > .pleat-ratio-card,
  #panel-step1 > .open-mode-card,
  #panel-step1 > #liningChoiceCard {
    grid-column: span 4;
  }

  @media (max-width: 1320px) {
    #panel-step1 > .pleat-ratio-card,
    #panel-step1 > .open-mode-card,
    #panel-step1 > #liningChoiceCard {
      grid-column: span 6;
    }
  }

  @media (max-width: 680px) {
    #panel-step1 > .pleat-ratio-card,
    #panel-step1 > .open-mode-card,
    #panel-step1 > #liningChoiceCard {
      grid-column: 1 / -1;
    }
  }

  @media (max-width: 980px) {
    .three-col {
      grid-template-columns: minmax(0, 1fr) !important;
      height: auto;
      overflow: visible;
    }

    .col-nav,
    .preview-resizer {
      display: none !important;
    }

    .col-form,
    .col-preview {
      min-width: 0;
      width: 100%;
      height: auto;
      overflow: visible;
    }

    .col-preview {
      border-left: 0;
    }

    .col-preview-header {
      position: static;
    }

    .col-preview-body {
      display: block;
      padding: 16px;
    }
  }