:root{
  --bg:#f5f6f8;--surface:#fff;--text:#20242b;--muted:#69717d;--line:#dfe3e8;
  --primary:#27364a;--primary-2:#1b2736;--danger:#b74242;--danger-bg:#fff0f0;
  --bonus:#e7a73b;--shadow:0 8px 24px rgba(25,35,48,.08);--radius:14px
}
*{box-sizing:border-box}html{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC",Arial,sans-serif;color:var(--text);background:var(--bg)}body{margin:0;min-height:100vh}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}img{max-width:100%;display:block}
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(8px)}.topbar-inner{max-width:1500px;margin:auto;padding:0 22px;min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px}.logo{display:flex;align-items:center;gap:10px;white-space:nowrap}.logo span,.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:var(--primary);color:white;font-weight:800;letter-spacing:.04em}.logo strong{font-size:17px}.main-nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap;justify-content:flex-end}.main-nav a{padding:9px 11px;border-radius:8px;color:var(--muted);font-size:14px}.main-nav a:hover,.main-nav a.active{background:#edf0f4;color:var(--text)}.menu-toggle{display:none;border:0;background:transparent;font-size:26px;padding:6px}
.container{max-width:1500px;margin:auto;padding:20px 22px 50px}.statusbar{display:flex;align-items:center;justify-content:space-between;gap:20px;background:#eef1f5;border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin-bottom:22px;font-size:13px;color:var(--muted)}.statusbar>div:first-child{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.statusbar strong{color:var(--text);font-size:14px}.year-switch{display:flex;align-items:center;gap:8px;white-space:nowrap}.year-switch select{padding:7px 30px 7px 10px}
.page-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin:4px 0 18px}.page-heading h1{font-size:26px;margin:0 0 5px}.page-heading p{margin:0;color:var(--muted)}.heading-actions,.form-actions,.row-actions,.card-actions,.modal-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.card-actions form,.row-actions form{margin:0}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:9px 14px;border:1px solid var(--line);border-radius:9px;background:white;color:var(--text);font-weight:650;line-height:1.1}.btn:hover{border-color:#aeb6c0;background:#f9fafb}.btn.primary{background:var(--primary);border-color:var(--primary);color:white}.btn.primary:hover{background:var(--primary-2)}.btn.danger{background:var(--danger-bg);border-color:#efc2c2;color:var(--danger)}.btn.ghost{background:transparent}.btn.small{min-height:32px;padding:6px 10px;font-size:13px}.btn.wide{width:100%}
.flash{padding:12px 15px;border-radius:10px;margin:0 0 16px;border:1px solid}.flash.success{background:#edf8f1;border-color:#b9dfc7;color:#25633a}.flash.error{background:#fff1f1;border-color:#efc1c1;color:#8e2d2d}
.filter-panel{display:flex;align-items:flex-end;gap:10px;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px;margin-bottom:20px}.filter-panel label{min-width:150px}.filter-panel label.grow{flex:1 1 260px}.compact-filter{margin-bottom:12px}.compact-filter label{min-width:0}
label{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:650;color:#3d4651}input,select,textarea{width:100%;border:1px solid #cfd5dc;border-radius:9px;background:white;padding:10px 11px;color:var(--text);outline:none}input:focus,select:focus,textarea:focus{border-color:#6c7d92;box-shadow:0 0 0 3px rgba(39,54,74,.09)}textarea{resize:vertical}.required{color:var(--danger);margin-left:3px}
.product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.product-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 4px 14px rgba(25,35,48,.05);break-inside:avoid}.product-media{position:relative;aspect-ratio:4/3;background:#f1f2f4;overflow:hidden}.carousel-slide{display:none;width:100%;height:100%;object-fit:contain;background:white}.carousel-slide.active{display:block}.image-placeholder{height:100%;display:grid;place-items:center;color:#a6adb6;font-size:13px;letter-spacing:.12em}.carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:34px;height:44px;border:0;background:rgba(20,24,29,.55);color:white;font-size:28px;line-height:1;border-radius:8px}.carousel-arrow.prev{left:8px}.carousel-arrow.next{right:8px}.carousel-count{position:absolute;left:50%;bottom:8px;transform:translateX(-50%);background:rgba(20,24,29,.65);color:white;border-radius:20px;padding:4px 9px;font-size:12px}.bonus-badge{position:absolute;right:8px;top:8px;z-index:4;background:var(--bonus);color:#2e2415;border-radius:9px;padding:6px 9px;text-align:center;font-size:10px;line-height:1.2;box-shadow:0 3px 10px rgba(0,0,0,.14)}.bonus-badge strong{font-size:14px}.product-body{padding:15px}.product-code{font-size:12px;color:var(--muted);margin-bottom:6px}.product-body h2{font-size:18px;margin:0 0 3px}.model-name{font-size:15px;font-weight:750}.category-line{font-size:13px;color:var(--muted);margin-top:4px}.tag-list{display:flex;gap:5px;flex-wrap:wrap;margin-top:10px}.tag-list span{font-size:11px;background:#eef1f5;border-radius:20px;padding:4px 8px;color:#596371}.price-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;border-top:1px solid var(--line);margin-top:13px;padding-top:12px}.price-row>div{min-width:0}.price-row small{display:block;color:var(--muted);font-size:11px;margin-bottom:3px}.price-row strong{font-size:17px;white-space:nowrap}.product-note{font-size:12px;color:var(--muted);border-top:1px dashed var(--line);padding-top:10px;margin:10px 0 0}.card-meta{font-size:11px;color:#9299a2;margin-top:10px}.card-actions{border-top:1px solid var(--line);margin-top:10px;padding-top:10px}
.form-card,.section-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 3px 12px rgba(25,35,48,.04)}.form-card.compact{padding:18px}.form-card h2,.section-card h2{margin:0 0 14px;font-size:19px}.form-card form>label{margin-bottom:13px}.form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;margin-bottom:18px}.form-grid label{margin:0}.span-2{grid-column:span 2}fieldset{border:1px solid var(--line);border-radius:12px;padding:16px;margin:0 0 18px}legend{font-weight:750;padding:0 7px}.check-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}.check-item{display:flex;flex-direction:row;align-items:center;gap:8px;border:1px solid var(--line);padding:8px 10px;border-radius:8px;background:#fafbfc;font-weight:500}.check-item input{width:auto;margin:0}.existing-images{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;margin-bottom:14px}.existing-images label{border:1px solid var(--line);padding:6px;border-radius:8px;font-weight:500;font-size:11px}.existing-images img{aspect-ratio:1;object-fit:contain;margin-bottom:6px}.existing-images input{width:auto}.upload-box{border:2px dashed #c8ced6;background:#f9fafb;border-radius:12px;padding:20px;align-items:center;text-align:center;cursor:pointer}.upload-box input{border:0;padding:0;max-width:360px}.upload-box span{color:var(--muted);font-weight:400;font-size:12px}.form-actions{margin-top:16px}
.tabs{display:flex;gap:7px;margin-bottom:16px;overflow:auto}.tabs a{white-space:nowrap;padding:9px 14px;border:1px solid var(--line);border-radius:9px;background:white;color:var(--muted)}.tabs a.active{background:var(--primary);color:white;border-color:var(--primary)}.two-column{display:grid;grid-template-columns:minmax(260px,380px) 1fr;gap:18px;align-items:start}.three-panels{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:18px}.data-list{display:flex;flex-direction:column;gap:8px}.data-row{display:flex;justify-content:space-between;gap:14px;align-items:center;background:white;border:1px solid var(--line);border-radius:11px;padding:12px 14px}.data-row>div:first-child{min-width:0}.data-row strong{display:block}.data-row small{display:block;color:var(--muted);margin-top:3px}.section-card{margin-top:18px}.section-title{display:flex;justify-content:space-between;gap:15px;align-items:flex-start}.section-title p{margin-top:-8px;color:var(--muted)}.data-table-wrap{overflow:auto}.data-table{width:100%;border-collapse:collapse;font-size:13px}.data-table th,.data-table td{text-align:left;border-bottom:1px solid var(--line);padding:10px 9px;white-space:nowrap}.data-table th{background:#f5f6f8}.inline-confirm-form{display:flex;gap:7px;align-items:center}.inline-confirm-form input{min-width:170px;padding:7px 9px}.timeline{display:flex;flex-direction:column;gap:11px}.timeline>div{border-left:3px solid #aeb8c5;padding-left:10px}.timeline span,.timeline small{display:block;color:var(--muted);font-size:12px;margin-top:2px}.warning-box{background:#fff8e8;border:1px solid #ecd493;border-radius:10px;padding:12px;color:#6c5420}.muted{color:var(--muted);font-weight:400}.empty-state{padding:50px 20px;text-align:center;background:white;border:1px dashed #cbd1d8;border-radius:var(--radius);color:var(--muted)}.empty-state h3{color:var(--text)}.empty-state.small{padding:25px}.modal-backdrop{position:fixed;inset:0;z-index:100;background:rgba(15,20,28,.56);display:grid;place-items:center;padding:20px}.modal-backdrop[hidden]{display:none}.modal{width:min(430px,100%);background:white;border-radius:15px;padding:22px;box-shadow:var(--shadow)}.modal h3{margin-top:0}.modal-actions{justify-content:flex-end}
.login-body{display:grid;place-items:center;padding:25px;background:linear-gradient(145deg,#eef1f5,#f8f9fa)}.login-card{width:min(430px,100%);background:white;border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:var(--shadow)}.login-card .brand-mark{margin-bottom:18px}.login-card h1{font-size:24px;margin:0 0 8px}.login-card>p{color:var(--muted);margin:0 0 20px}.login-card form label{margin-bottom:13px}.login-card small{display:block;text-align:center;color:#9299a2;margin-top:18px}.install-card{width:min(520px,100%)}
@media(max-width:1200px){.product-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.check-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.existing-images{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:900px){.topbar-inner{min-height:60px}.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:60px;left:12px;right:12px;background:white;border:1px solid var(--line);border-radius:12px;padding:8px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.main-nav a{padding:11px 12px}.product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.check-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.three-panels{grid-template-columns:1fr}.two-column{grid-template-columns:1fr}.statusbar{align-items:flex-start}.existing-images{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:620px){.container{padding:12px 12px 36px}.topbar-inner{padding:0 12px}.logo strong{font-size:15px}.statusbar{flex-direction:column;gap:10px;margin-bottom:16px}.statusbar>div:first-child{gap:8px 12px}.year-switch{width:100%}.year-switch select{flex:1}.page-heading{align-items:flex-start;flex-direction:column;margin-bottom:14px}.page-heading h1{font-size:22px}.heading-actions{width:100%}.heading-actions .btn{flex:1}.filter-panel{display:grid;grid-template-columns:1fr 1fr;align-items:end}.filter-panel label,.filter-panel label.grow{min-width:0;grid-column:span 2}.filter-panel label:not(.grow){grid-column:span 1}.filter-panel .btn{width:100%}.product-grid{grid-template-columns:1fr;gap:13px}.product-card{display:grid;grid-template-columns:42% 58%;overflow:visible}.product-media{aspect-ratio:auto;min-height:210px;border-radius:14px 0 0 14px}.product-body{padding:12px}.product-body h2{font-size:16px}.price-row{grid-template-columns:1fr;gap:6px}.price-row strong{font-size:15px}.tag-list{max-height:58px;overflow:auto}.bonus-badge{right:6px;top:6px;padding:5px 7px}.carousel-arrow{width:28px;height:38px}.form-grid{grid-template-columns:1fr}.span-2{grid-column:auto}.check-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.existing-images{grid-template-columns:repeat(2,minmax(0,1fr))}.form-card,.section-card{padding:14px}.data-row{align-items:flex-start;flex-direction:column}.row-actions{width:100%}.row-actions .btn,.row-actions form{flex:1}.row-actions form .btn{width:100%}.inline-confirm-form{min-width:320px}.tabs{margin-left:-12px;margin-right:-12px;padding:0 12px}.login-card{padding:22px}.modal{padding:18px}}
@media print{@page{size:A4 portrait;margin:8mm}html,body{background:white}.no-print,.topbar,.statusbar,.page-heading,.filter-panel,.flash,.modal-backdrop{display:none!important}.container{max-width:none;padding:0}.product-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:5mm}.product-card{box-shadow:none;border:1px solid #aaa;border-radius:3mm;display:block}.product-media{aspect-ratio:4/3;border-radius:0}.carousel-slide{display:none!important}.carousel-slide:first-of-type{display:block!important}.bonus-badge{background:#ddd!important;color:#000;box-shadow:none;border:1px solid #999}.product-body{padding:4mm}.product-body h2{font-size:13pt}.model-name{font-size:11pt}.tag-list span{background:#eee!important}.price-row strong{font-size:12pt}.product-note{font-size:8pt}.card-meta,.card-actions{display:none!important}}

/* v1.1.0 歷年成本查詢 */
.history-filter{margin-bottom:14px}.history-result-note{color:var(--muted);font-size:13px;margin:0 0 14px}.history-index-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.history-index-card{display:grid;grid-template-columns:128px minmax(0,1fr);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 4px 14px rgba(25,35,48,.05)}.history-index-image{background:#f1f2f4;min-height:190px}.history-index-image img{width:100%;height:100%;object-fit:contain;background:white}.history-index-body{padding:14px;min-width:0}.history-index-body h2{font-size:17px;margin:0 0 3px}.history-year-list{margin-top:10px;font-size:12px;color:var(--muted);line-height:1.6}.history-latest-price{margin-top:10px}.history-latest-price strong{font-size:15px}.history-card-footer{display:flex;justify-content:space-between;gap:8px;align-items:center;border-top:1px solid var(--line);padding-top:10px;margin-top:10px}.history-card-footer span{font-size:12px;color:var(--muted)}
.history-summary{display:grid;grid-template-columns:130px minmax(260px,1fr) repeat(2,minmax(150px,210px));gap:16px;align-items:stretch;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:0 4px 14px rgba(25,35,48,.05);margin-bottom:14px}.history-summary-image{height:105px;background:#f1f2f4;border-radius:10px;overflow:hidden}.history-summary-image img{width:100%;height:100%;object-fit:contain;background:white}.history-summary-main{align-self:center;min-width:0}.history-summary-main h2{font-size:21px;margin:4px 0}.history-summary-main p{margin:0;color:var(--muted);font-size:13px}.history-stat{display:flex;flex-direction:column;justify-content:center;border-left:1px solid var(--line);padding-left:16px}.history-stat small{color:var(--muted);margin-bottom:5px}.history-stat strong{font-size:21px}.history-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:12px 0}.history-toolbar>span{color:var(--muted);font-size:12px}.history-toolbar>div{display:flex;gap:7px;flex-wrap:wrap}.history-table-card{margin-top:0}.history-table td{vertical-align:middle}.history-table td strong{font-size:14px}.table-subtext{display:block;color:var(--muted);font-size:11px;margin-top:3px}.delta{font-weight:800;white-space:nowrap}.delta.up{color:#b45309}.delta.down{color:#16704a}.delta.same{color:var(--muted)}
@media(max-width:1200px){.history-index-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.history-summary{grid-template-columns:115px 1fr repeat(2,minmax(135px,170px))}}
@media(max-width:900px){.history-summary{grid-template-columns:110px 1fr 1fr}.history-summary-main{grid-column:2/4}.history-stat{border-left:0;border-top:1px solid var(--line);padding:12px 0 0}.history-summary-image{grid-row:1/3;height:100%}}
@media(max-width:620px){.history-index-grid{grid-template-columns:1fr}.history-index-card{grid-template-columns:38% 62%}.history-index-image{min-height:230px}.history-card-footer{align-items:stretch;flex-direction:column}.history-card-footer .btn{width:100%}.history-summary{grid-template-columns:86px 1fr;gap:12px;padding:12px}.history-summary-image{grid-row:auto;height:86px}.history-summary-main{grid-column:auto}.history-summary-main h2{font-size:17px}.history-summary-main p{font-size:12px}.history-stat{grid-column:span 1;padding-top:10px}.history-stat strong{font-size:17px}.history-toolbar{align-items:flex-start;flex-direction:column}.history-toolbar>div{width:100%}.history-toolbar .btn{flex:1}.history-table-card{padding:0;background:transparent;border:0;box-shadow:none}.history-table,.history-table tbody,.history-table tr,.history-table td{display:block;width:100%}.history-table thead{display:none}.history-table tr{background:white;border:1px solid var(--line);border-radius:12px;padding:8px 12px;margin-bottom:10px;box-shadow:0 3px 10px rgba(25,35,48,.04)}.history-table td{display:grid;grid-template-columns:42% 58%;gap:8px;align-items:start;border-bottom:1px solid var(--line);padding:9px 0;white-space:normal;text-align:right}.history-table td:last-child{border-bottom:0}.history-table td::before{content:attr(data-label);font-weight:700;color:var(--muted);text-align:left}.history-table td .table-subtext{grid-column:2}.history-table td .btn{width:100%}}
@media print{.history-filter,.history-result-note,.history-index-grid,.history-toolbar{display:none!important}.history-summary{box-shadow:none;border:1px solid #aaa;grid-template-columns:28mm 1fr 40mm 40mm;padding:3mm;margin-bottom:4mm}.history-summary-image{height:24mm}.history-table-card{display:block!important;margin:0;padding:0;border:0;box-shadow:none}.history-table th,.history-table td{font-size:9pt;padding:2.2mm 1.5mm}.history-table .table-subtext{font-size:7pt}.history-table .delta.up,.history-table .delta.down{color:#000}.history-table td[data-label="操作"],.history-table th.no-print{display:none!important}}

/* v1.2.0 自動編號與廠牌連動型號 */
.auto-code-field{background:#f3f5f7!important;color:#4b5563;font-weight:800;letter-spacing:.08em;cursor:not-allowed}.field-help{display:block;color:var(--muted);font-size:12px;font-weight:400;margin-top:5px}select:disabled{background:#f1f3f5;color:#8a9199;cursor:not-allowed}