:root{--bg:#f3f7fc;--surface:#fff;--ink:#111d38;--muted:#7c8ca6;--line:#e0e9f5;--blue:#0064ff;--light-blue:#e8f2ff;--warning:#fff4d8;--warning-text:#c97900;--radius:12px;--sidebar:244px;font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea,summary{outline-offset:4px}button{border:1px solid #ccdcef;border-radius:7px;background:white;padding:10px 16px;cursor:pointer;color:var(--ink);font-weight:600;font-size:14px;line-height:1.35;transition:background .15s,border-color .15s}button:hover:enabled{background:#f0f6ff;border-color:#9cbfff}button:disabled{opacity:.5;cursor:not-allowed}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,p{margin:0}h1{font-size:28px;line-height:1.4;letter-spacing:-.5px}h2{font-size:21px;line-height:1.45}h3{font-size:15px;line-height:1.5}small,.muted{color:var(--muted);font-size:13px;line-height:1.6}.sku-shell{min-height:100vh;display:grid;grid-template-columns:var(--sidebar) minmax(0,1fr)}.sku-sidebar{background:white;border-right:1px solid #ebf0f8;display:flex;flex-direction:column;padding:25px 15px;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:11px;padding:0 13px;font-size:20px;font-weight:800;white-space:nowrap}.brand-mark{width:29px;height:29px;background:var(--blue);clip-path:polygon(50% 0,63% 33%,100% 50%,66% 63%,50% 100%,36% 64%,0 50%,34% 35%)}.brand-mark:after{content:"";display:block;background:#a7d5ff;width:13px;height:20px;transform:rotate(25deg) 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.number{background:var(--blue);color:white;border-color:var(--blue)}.phase-badge{font-size:11px;font-weight:500;border:1px solid var(--blue);border-radius:4px;padding:1px 5px;margin-left:8px}.stage-note{margin-top:11px;font-size:12px;color:var(--muted)}.workspace-grid{display:grid;grid-template-columns:minmax(0,2.05fr) minmax(310px,1fr);gap:16px;align-items:start}.workspace-left{display:grid;gap:12px;min-width:0}.card{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:17px 23px;min-width:0}.card-heading{display:flex;align-items:center;gap:13px;margin-bottom:13px}.card-heading .muted{font-size:12px}.card-heading 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#92bfff;border-radius:4px;padding:1px 5px;white-space:nowrap}.swatches{display:flex;gap:7px;align-items:center}.status{display:inline-flex;background:#fff1d5;color:#d68a0a;border-radius:30px;padding:3px 9px;font-size:11px;white-space:nowrap}.status.success{background:#e6f7ed;color:#2b9460}.status.neutral{background:#eef3f9;color:#7d8da5}.edit-suggestion{border:0;padding:0;background:transparent;color:#5980b4}.edit-suggestion .icon{width:16px;height:16px}.suggestion-actions{display:flex;gap:8px;align-items:center;margin-top:12px}.preview-card{padding:16px 24px}.preview-card .card-heading{margin-bottom:13px}.section-label{display:flex;align-items:center;justify-content:space-between;font-size:14px;font-weight:650;margin:11px 0 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solid var(--line);border-radius:var(--radius);background:white;padding:12px 24px;margin-top:10px;position:sticky;bottom:10px;z-index:5;box-shadow:0 6px 16px #c6d5e81c}.sticky-actions strong{font-size:14px}.sticky-actions .muted{font-size:12px;margin-top:3px}.action-buttons{display:flex;gap:10px}.primary{background:var(--blue);border-color:var(--blue);color:white;min-width:190px}.primary:hover:enabled{background:#0059e3;border-color:#0059e3}.secondary{min-width:146px}.feedback-banner{border-radius:8px;padding:10px 14px;margin-bottom:12px;font-size:13px}.feedback-banner.error{background:#fff0ee;color:#ae3e2f}.feedback-banner.success{background:#eaf8f0;color:#258253}.feedback-banner.loading{background:#eaf3ff;color:#236dcc}.empty{padding:25px;text-align:center;color:var(--muted);font-size:13px;line-height:1.8}.stack{display:grid;gap:16px}.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.split{display:grid;grid-template-columns:minmax(210px,.75fr) minmax(0,2fr);gap:16px}.list-panel{padding:18px}.list-item{width:100%;display:flex;flex-direction:column;align-items:flex-start;gap:6px;text-align:left;border:1px solid var(--line);margin-top:10px;font-size:14px}.list-item.selected{background:#eaf3ff;border-color:#b7d5ff}.section-toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:17px;gap:15px}.table-scroll{overflow:auto}.task-table{width:100%;border-collapse:collapse;font-size:13px}.task-table th{text-align:left;font-size:12px;color:var(--muted);background:#f6f9fd;font-weight:500}.task-table th,.task-table td{padding:15px 12px;border-bottom:1px solid var(--line)}.task-table button{font-size:12px;padding:6px 10px}.source-path{color:#6d829f;line-height:1.6;font-size:12px;overflow-wrap:anywhere}.standard-form{display:grid;gap:14px}.two-fields{display:grid;grid-template-columns:1fr 1fr;gap:16px}.version-list{padding:0;list-style:none;display:grid;gap:10px}.version-list li{border-left:2px solid #bdcff0;padding:3px 12px}.version-list small{display:block}.inline-reference{display:grid;grid-template-columns:110px 1fr;gap:18px;align-items:start}.inline-reference img{max-width:110px;border-radius:5px}.danger{color:#b75449}.plain-button{border:0;background:transparent;padding:8px;font-size:12px;color:#72849e}.simulation{background:#f3f8ff;border:1px dashed #a9c7f2;border-radius:8px;padding:14px;margin-top:8px}.simulation h3{font-size:13px;color:#35649d}.simulation p{font-size:12px;line-height:1.7;color:#627897;margin-top:7px}.simulation-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:5px;margin:12px auto 6px;max-width:170px}.simulation-grid span{display:grid;place-items:center;min-height:37px;border:1px dashed #bdccdf;color:#9aa9bd;border-radius:4px;font-size:11px;background:white}.simulation-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;max-width:170px;margin:auto}.simulation-strip span{border:1px dashed #bdccdf;text-align:center;color:#9aa9bd;font-size:10px;padding:3px}.result-list{display:grid;gap:14px}.result-row{display:grid;grid-template-columns:1fr auto;gap:18px;padding:18px;border:1px solid var(--line);border-radius:8px}.result-row h3{margin-bottom:8px}.result-meta{font-size:12px;color:#7b8ba4;line-height:1.8}.result-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.result-actions button,.result-actions a{font-size:12px}.modal-backdrop{position:fixed;inset:0;background:#152a4566;z-index:20;display:grid;place-items:center;padding:24px}.modal{background:white;border-radius:14px;box-shadow:0 20px 70px #152a453b;padding:24px;width:min(620px,100%);max-height:90vh;overflow:auto}.modal-header{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:18px}.modal-header h2{font-size:20px}.modal form{display:grid;gap:14px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:8px}.login-shell{max-width:600px;margin:12vh auto;padding:34px;background:white;border:1px solid var(--line);border-radius:16px}.login-shell h1{margin:16px 0}.login-shell p{font-size:14px;line-height:1.8;color:#778aa5;margin:14px 0}.login-shell .primary{margin-top:6px}.startup{padding:50px}.startup p{margin-top:14px}.summary-stat{font-size:13px;color:#7689a5}.feedback-list{display:grid;gap:12px;margin:16px 0}.feedback-item{padding:14px;background:#f7faff;border:1px solid var(--line);border-radius:8px}.feedback-item p{font-size:13px;line-height:1.7}.feedback-item small{display:block;margin-top:6px}.form-help{font-size:12px;line-height:1.7;color:#7c8da5}.disabled-stage-message{color:#788ba7;font-size:12px}.advisory{font-size:12px;color:#8293aa;padding:10px 2px 0;line-height:1.6}.busy-indicator{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--blue);margin-right:8px}.reference-lock{display:flex;justify-content:space-between;margin-top:8px;font-size:11px;color:#9aabc2}.compact-button{padding:7px 10px;font-size:12px}.revision-tag{font-size:11px;color:#7791b2;font-weight:400}.cancel-note{padding:20px;border:1px dashed #d4dfea;background:#f5f8fc;border-radius:8px;color:#788ca8;font-size:14px}.output-heading{font-size:17px;margin-bottom:15px}
@media(min-width:1700px){.sku-main{padding-left:35px;padding-right:35px}.card{padding:23px 27px}.reference-image{max-width:310px}.suggestion-table td{padding:11px 12px}.field-grid{margin-top:24px}.preview-empty{min-height:165px}}
@media(max-width:1240px){:root{--sidebar:204px}.brand{font-size:17px;gap:8px;padding:0 5px}.brand-subtitle{font-size:14px;margin-left:6px}.sku-main{padding:18px}.sku-sidebar{padding-left:10px;padding-right:10px}.side-nav button{padding:14px;font-size:14px}.workspace-grid{grid-template-columns:minmax(0,1.7fr) minmax(270px,1fr)}.card{padding:16px}.card-heading{gap:8px}.card-heading h2{font-size:18px}.card-heading .muted{display:none}.field-grid{gap:14px}.locked-specs{grid-template-columns:repeat(2,1fr)}.reference-image{max-width:265px}.stages{gap:12px}.stage{gap:8px}.phase-badge{display:none}.suggestion-table th,.suggestion-table td{padding:8px 6px}.suggestion-name{gap:7px}.suggestion-name small{display:none}.swatches{gap:4px}.suggestion-table input[type=color]{width:17px;height:17px}.suggestion-table td:nth-child(3){max-width:105px}.count-row{gap:9px}.count-row>strong,.standard-row>strong{min-width:70px}.sticky-actions{padding:12px 16px}.primary{min-width:155px}.secondary{min-width:115px}}
@media(max-width:960px){:root{--sidebar:178px}.brand{font-size:15px}.brand-mark{width:22px;height:22px}.brand-subtitle{font-size:13px}.workspace-grid{grid-template-columns:minmax(0,1fr)}.preview-card{display:grid;grid-template-columns:1fr 1fr;gap:14px}.preview-card>.card-heading{grid-column:1/-1;margin-bottom:0}.preview-card .preview-separator{display:none}.reference-image{max-width:220px}.stages{gap:8px}.stage{gap:7px}.stage .number{width:30px;height:30px;font-size:12px}.stage strong{font-size:12px}.stage small{font-size:11px}.stage-bar{padding:14px}.page-header h1{font-size:23px}.mode-tag{font-size:10px}.card-heading .muted{display:block}.split{grid-template-columns:1fr}.list-panel{display:flex;flex-wrap:wrap;gap:10px}.list-panel h2{width:100%}.list-item{width:auto;min-width:200px;margin:0}.locked-specs{grid-template-columns:repeat(4,1fr)}.suggestion-name small{display:block}.suggestion-table td:nth-child(3){max-width:none}}
@media(max-width:680px){.sku-shell{display:block}.sku-sidebar{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line);padding:14px 14px 10px}.brand{font-size:17px;padding:0}.brand-subtitle,.sidebar-bottom{display:none}.side-nav{display:flex;gap:5px;overflow:auto;margin-top:12px}.side-nav button{padding:9px 11px;white-space:nowrap;gap:7px;font-size:12px}.side-nav .icon{width:17px;height:17px}.sku-main{padding:16px 12px}.page-header{margin-bottom:12px}.breadcrumb{font-size:11px}.page-header h1{font-size:21px}.mode-tag{max-width:86px;white-space:normal;text-align:center}.stage-bar{padding:12px 10px}.stages{grid-template-columns:1.35fr 1fr 1fr .9fr;gap:5px}.stage{flex-direction:column;align-items:flex-start;gap:5px}.stage .number{width:26px;height:26px;font-size:11px}.stage strong{font-size:11px;line-height:1.6}.stage small{font-size:10px}.stage-note{font-size:10px}.card{padding:15px 13px}.card-heading h2{font-size:18px}.card-heading .muted{display:none}.standard-row{gap:8px}.standard-row select{font-size:12px;padding:9px 7px}.standard-row>strong{min-width:55px;font-size:12px}.locked-specs{gap:4px}.spec{font-size:10px;gap:4px;padding:7px 3px}.spec .icon{width:12px;height:12px}.field-grid{gap:10px;margin-top:15px}.field{font-size:12px}.field input,.field select,.field textarea{font-size:13px}.count-row{flex-wrap:wrap;font-size:12px}.count-row>strong{font-size:12px;min-width:60px}.count-row>.muted{flex-basis:100%;font-size:11px}.suggestions-heading h2{font-size:17px}.suggestions-heading .icon{width:19px;height:19px}.button-outline{font-size:11px;padding:6px 8px}.suggestion-table{font-size:11px}.suggestion-table th{font-size:11px}.suggestion-table td,.suggestion-table th{padding:7px 4px}.suggestion-name{gap:5px}.suggestion-name b{font-size:11px;white-space:normal}.suggestion-name small{display:none}.status{font-size:10px;padding:3px 6px}.suggestion-table input[type=color]{width:15px;height:15px}.suggestion-table td:nth-child(3){max-width:70px}.preview-card{display:block}.reference-image{max-width:255px}.preview-separator{display:block!important}.sticky-actions{padding:12px;align-items:stretch;flex-direction:column;position:static}.action-buttons{gap:8px}.action-buttons button{flex:1;min-width:0;font-size:13px}.sticky-actions>.cost{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.sticky-actions .muted{margin:0;font-size:11px}.sticky-actions strong{font-size:12px}.two-fields{grid-template-columns:1fr}.task-table th,.task-table td{padding:12px 9px;white-space:nowrap}.section-toolbar{align-items:flex-start}.section-toolbar h2{font-size:18px}.result-row{grid-template-columns:1fr}.modal-backdrop{padding:12px}.modal{padding:20px 16px}.login-shell{margin:8vh 16px;padding:25px}.login-shell h1{font-size:24px}.inline-reference{grid-template-columns:85px 1fr}.inline-reference img{max-width:85px}.warning-strip{font-size:12px}.reference-lock{display:none}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}