:root{--teal:#0f766e;--teal-dark:#115e59;--mint:#ccfbf1;--ink:#13312f;--muted:#647a78;--line:#d8e5e3;--paper:#f4faf9;--white:#fff;--danger:#b42318;--shadow:0 12px 36px rgba(15,118,110,.08)}
*{box-sizing:border-box}body{margin:0;background:linear-gradient(160deg,#edf8f6 0%,#f8fbfb 45%,#edf5f4 100%);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;min-height:100vh}.app-shell{width:min(720px,100%);margin:0 auto;padding:22px 16px 30px}.app-header{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;margin-bottom:22px}.eyebrow{margin:0 0 5px;color:var(--teal);font-size:11px;font-weight:800;letter-spacing:.12em}.app-header h1{font-size:25px;line-height:1.2;margin:0 0 7px;letter-spacing:-.02em}.subtitle{margin:0;color:var(--muted);font-size:13px}.header-badge{white-space:nowrap;background:var(--mint);color:var(--teal-dark);font-size:12px;font-weight:700;border-radius:999px;padding:8px 10px}.tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;background:#deecea;border-radius:14px;padding:4px;margin-bottom:18px}.tab{border:0;background:transparent;color:#55716e;padding:11px 5px;border-radius:10px;font-size:14px;font-weight:700;cursor:pointer}.tab.active{background:var(--white);color:var(--teal-dark);box-shadow:0 3px 10px rgba(16,79,75,.1)}.tab-panel{display:none}.tab-panel.active{display:block}.card{background:rgba(255,255,255,.94);border:1px solid rgba(201,222,219,.9);border-radius:18px;box-shadow:var(--shadow)}.intro-card{display:flex;gap:12px;align-items:center;padding:16px;margin-bottom:12px}.section-icon{width:45px;height:45px;display:grid;place-items:center;background:var(--teal);color:#fff;border-radius:13px;font-size:11px;font-weight:800;letter-spacing:.04em}.intro-card h2{font-size:17px;margin:0 0 3px}.intro-card p{font-size:12px;color:var(--muted);margin:0;line-height:1.55}.form-card{padding:17px;margin-bottom:12px}.form-card label,.scanner-card label{font-size:13px;font-weight:700;display:block;margin-bottom:7px;color:#355451}.form-card input,.scanner-card input{width:100%;border:1px solid #c8dcd9;background:#fbfefd;border-radius:10px;padding:12px 13px;font-size:15px;color:var(--ink);outline:none;transition:border .2s,box-shadow .2s}.form-card input:focus,.scanner-card input:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(15,118,110,.11)}.hint-row{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;margin:8px 2px 14px}.primary-btn,.secondary-btn,.ghost-btn{border:0;border-radius:10px;min-height:43px;padding:10px 14px;font-size:14px;font-weight:750;cursor:pointer;transition:transform .1s,opacity .2s}.primary-btn:active,.secondary-btn:active,.ghost-btn:active{transform:scale(.98)}.primary-btn{width:100%;background:var(--teal);color:#fff}.primary-btn:hover{background:var(--teal-dark)}.secondary-btn{background:#e1f3f0;color:var(--teal-dark)}.ghost-btn{background:#f0f6f5;color:#486361}.wide-btn{width:100%;margin-top:9px}.hidden{display:none!important}.qr-card{padding:17px;text-align:center;margin-bottom:12px}.result-head{display:flex;align-items:center;justify-content:space-between;color:#35615d;font-size:13px;font-weight:700;margin-bottom:12px}.status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#2ba58d;margin-right:6px}.stock-pill{display:inline-flex;align-items:center;background:#fff2d8;color:#956016;border-radius:999px;padding:5px 9px;font-size:11px;font-weight:800}.qrcode-box{display:grid;place-items:center;min-height:250px;background:#fff;border:1px dashed #c8dcda;border-radius:12px;padding:10px}.qrcode-box img,.qrcode-box canvas{max-width:100%;height:auto}.qr-content{font-size:12px;word-break:break-all;line-height:1.5;color:#536b68;margin:12px 0}.action-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.action-grid .ghost-btn{grid-column:1/-1}.scanner-card{padding:17px;margin-bottom:12px}.scanner-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:13px}.scanner-head h3{font-size:15px;margin:0}.tiny-label{color:var(--muted);font-size:11px}.camera-wrap{position:relative;border-radius:14px;overflow:hidden;background:#082c2a;aspect-ratio:4/3;margin-bottom:10px}.camera-wrap video{width:100%;height:100%;object-fit:cover}.scan-frame{position:absolute;inset:20%;border:2px solid #83e9d5;border-radius:15px;box-shadow:0 0 0 999px rgba(0,0,0,.27)}.scan-frame i{position:absolute;width:17px;height:17px;border-color:#fff;border-style:solid}.scan-frame i:nth-child(1){left:-3px;top:-3px;border-width:3px 0 0 3px}.scan-frame i:nth-child(2){right:-3px;top:-3px;border-width:3px 3px 0 0}.scan-frame i:nth-child(3){left:-3px;bottom:-3px;border-width:0 0 3px 3px}.scan-frame i:nth-child(4){right:-3px;bottom:-3px;border-width:0 3px 3px 0}.scan-actions{display:flex;gap:8px}.scan-actions .primary-btn{flex:1}.scan-actions .ghost-btn{flex:0 0 auto}.or-divider{display:flex;align-items:center;gap:10px;color:#91a7a4;font-size:12px;margin:15px 0}.or-divider:before,.or-divider:after{content:"";height:1px;background:#e0ecea;flex:1}.inline-input{display:flex;gap:8px}.inline-input input{flex:1}.inline-input .secondary-btn{white-space:nowrap}.message{min-height:18px;font-size:12px;color:var(--teal);margin:10px 2px 0}.message.error{color:var(--danger)}.batch-preview{padding:12px;background:#f0f8f7;border-radius:10px;margin-bottom:14px}.preview-label{display:block;color:var(--muted);font-size:11px;margin-bottom:4px}.batch-preview strong{font-size:14px;word-break:break-all}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:15px}.field-grid input{width:100%}.ledger-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:15px;margin-bottom:17px;text-align:center}.ledger-summary>div{display:flex;flex-direction:column;gap:4px;border-right:1px solid #dfebea}.ledger-summary>div:last-child{border:0}.summary-label{font-size:11px;color:var(--muted)}.ledger-summary strong{font-size:21px;color:var(--teal-dark)}.ledger-toolbar{display:flex;justify-content:space-between;align-items:center;margin:0 2px 10px}.ledger-toolbar h2{font-size:18px;margin:0}.ledger-toolbar .ghost-btn{min-height:34px;padding:7px 11px;font-size:12px}.ledger-list{display:flex;flex-direction:column;gap:12px}.ledger-item{padding:15px}.ledger-item-head{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}.ledger-item h3{font-size:14px;line-height:1.4;word-break:break-all;margin:0 0 3px}.ledger-meta{color:var(--muted);font-size:11px}.remaining{font-size:17px;font-weight:800;color:var(--teal-dark);white-space:nowrap}.remaining small{display:block;font-size:10px;font-weight:600;color:var(--muted);text-align:right}.usage-table{width:100%;border-collapse:collapse;margin-top:12px;font-size:12px}.usage-table th{text-align:left;color:var(--muted);font-size:10px;font-weight:700;padding:7px 4px;border-bottom:1px solid #dfebea}.usage-table td{padding:9px 4px;border-bottom:1px solid #edf3f2;vertical-align:top}.usage-table tr:last-child td{border-bottom:0}.empty-state{text-align:center;padding:34px 20px}.empty-icon{font-size:34px;color:#8eb9b4}.empty-state h3{font-size:15px;margin:8px 0 5px}.empty-state p{font-size:12px;color:var(--muted);margin:0}.storage-note{text-align:center;color:#91a4a2;font-size:11px;margin:16px 0 0}footer{text-align:center;color:#8da3a0;font-size:11px;margin-top:24px}@media(max-width:420px){.app-shell{padding:17px 12px 25px}.app-header h1{font-size:22px}.field-grid{grid-template-columns:1fr}.action-grid{grid-template-columns:1fr}.action-grid .ghost-btn{grid-column:auto}.header-badge{font-size:10px;padding:7px 8px}}
/* 台账摘要与批次明细：确保长批次名称、累计/剩余用量和登记次数都清晰可见 */
.ledger-summary{grid-template-columns:minmax(150px,2.2fr) repeat(3,minmax(78px,1fr));align-items:stretch;text-align:left}
.ledger-summary>div{padding:0 10px;text-align:center;min-width:0}
.ledger-summary>div:first-child{text-align:left;padding-left:0}
.ledger-summary>div:last-child{padding-right:0}
.summary-batch-cell strong{display:block;font-size:13px;line-height:1.35;overflow-wrap:anywhere;word-break:break-word}
.ledger-item-head{align-items:flex-start}
.batch-title-wrap{min-width:0;flex:1}
.batch-label{display:block;color:var(--muted);font-size:10px;margin-bottom:3px}
.ledger-item h3{overflow-wrap:anywhere;word-break:break-word}
.ledger-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:13px;padding:10px 0;border-top:1px solid #e5efed;border-bottom:1px solid #e5efed}
.ledger-metrics>div{display:flex;flex-direction:column;gap:3px;min-width:0;padding:0 8px;border-right:1px solid #e5efed;text-align:center}
.ledger-metrics>div:first-child{padding-left:0}
.ledger-metrics>div:last-child{border-right:0;padding-right:0}
.ledger-metrics span{color:var(--muted);font-size:10px;white-space:nowrap}
.ledger-metrics strong{font-size:16px;color:var(--teal-dark);overflow-wrap:anywhere}
@media(max-width:560px){.ledger-summary{grid-template-columns:1.7fr 1fr 1fr 1fr;padding:12px 8px;gap:2px}.ledger-summary>div{padding:0 4px}.ledger-summary .summary-label{font-size:10px}.summary-batch-cell strong{font-size:12px}.ledger-summary strong{font-size:18px}.remaining{font-size:16px}.ledger-metrics{gap:3px}.ledger-metrics>div{padding:0 4px}.ledger-metrics span{font-size:9px}}
@media(max-width:390px){.ledger-summary{grid-template-columns:1fr 1fr}.ledger-summary>div{padding:5px 3px;border-right:0}.ledger-summary>div:first-child{text-align:center;padding-left:3px}.ledger-summary>div:last-child{padding-right:3px}.summary-batch-cell{grid-column:1/-1;border-bottom:1px solid #dfebea!important;padding-bottom:8px!important}.ledger-metrics span{white-space:normal;line-height:1.2}}

/* 独立的库存台账与登记明细：紧凑的 Excel 风格表格 */
.tabs{grid-template-columns:repeat(4,1fr)}
.section-note{margin:4px 0 0;color:var(--muted);font-size:11px}
.table-card{overflow:hidden;margin-bottom:12px}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.ledger-grid{width:100%;border-collapse:collapse;min-width:560px;font-size:12px;background:var(--white)}
.ledger-grid th{background:#edf6f4;color:#46635f;font-size:11px;font-weight:700;text-align:left;padding:11px 12px;border-bottom:1px solid #cfe2df;white-space:nowrap}
.ledger-grid td{padding:12px;border-bottom:1px solid #e5efed;color:#24413e;vertical-align:top;white-space:nowrap}
.ledger-grid tbody tr:last-child td{border-bottom:0}
.ledger-grid tbody tr:hover{background:#f7fbfa}
.ledger-grid .admin-col{display:none}.ledger-grid .admin-action{border:0;background:#eaf5f3;color:#0f766e;border-radius:7px;padding:5px 7px;font-size:11px;cursor:pointer;margin-left:3px}.ledger-grid .admin-action.danger{color:#b42318;background:#fff0ef}
.ledger-grid th:not(:first-child),.ledger-grid td:not(:first-child){text-align:right}
.ledger-grid .batch-cell{white-space:normal;word-break:break-all;text-align:left;min-width:240px;max-width:360px;font-weight:600;color:#163d39}
.details-grid{min-width:760px}
.details-grid .batch-cell{min-width:230px;max-width:320px}
@media(max-width:560px){.tabs{grid-template-columns:repeat(2,1fr)}.ledger-toolbar{align-items:flex-start}.ledger-toolbar h2{font-size:17px}.ledger-grid{min-width:520px}.ledger-grid th,.ledger-grid td{padding:10px 9px}}
.qrcode-box .qr-composite{display:block;width:100%;max-width:100%;height:auto;image-rendering:pixelated}
#qr-result .qrcode-box{min-height:0;padding:14px 10px}

/* 账户注册与登录 */
.qr-original{margin:12px 0 14px;padding:10px 12px;text-align:left;background:#f0f8f7;border:1px solid #d2e8e5;border-radius:10px}
.qr-original-label{display:block;color:var(--muted);font-size:11px;font-weight:700;margin-bottom:4px}
.qr-original .qr-content{margin:0;color:var(--ink);font-size:14px;font-weight:700;line-height:1.55;overflow-wrap:anywhere}
.auth-screen{position:fixed;inset:0;z-index:20;display:grid;place-items:center;padding:18px;background:linear-gradient(160deg,#edf8f6 0%,#f8fbfb 45%,#edf5f4 100%)}
.auth-screen.hidden{display:none}
.auth-card{width:min(430px,100%);padding:25px 22px}
.auth-card h1{margin:0 0 7px;font-size:24px;color:var(--ink)}
.auth-note,.auth-footnote{font-size:12px;color:var(--muted);line-height:1.5;margin:0 0 16px}
.auth-tabs{display:grid;grid-template-columns:1fr 1fr;gap:6px;background:#edf6f4;border-radius:10px;padding:4px;margin-bottom:16px}
.auth-tab{border:0;border-radius:8px;padding:9px 5px;background:transparent;color:#55716e;font-size:13px;font-weight:700;cursor:pointer}
.auth-tab.active{background:var(--white);color:var(--teal-dark);box-shadow:0 2px 7px rgba(16,79,75,.1)}
.auth-form label{font-size:13px;font-weight:700;display:block;margin:10px 0 6px;color:#355451}
.auth-form input{width:100%;border:1px solid #c8dcd9;background:#fbfefd;border-radius:10px;padding:11px 12px;font-size:15px;color:var(--ink);outline:none}
.auth-form input:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(15,118,110,.11)}
.auth-form .primary-btn{margin-top:17px}
.auth-footnote{text-align:center;margin:16px 0 0;font-size:11px;color:#91a4a2}
.user-area{display:flex;align-items:center;gap:6px;flex-direction:column}
.logout-btn{border:0;background:transparent;color:var(--muted);font-size:11px;padding:0 5px;cursor:pointer;text-decoration:underline}
@media(max-width:420px){.auth-card{padding:22px 17px}.user-area{gap:2px}.header-badge{font-size:10px;padding:7px 8px}}

/* 批次标签列表与桌面打印 */
.batch-list-card{padding:17px;margin-bottom:12px}.batch-list-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:12px}.batch-list-head h2{font-size:17px;margin:0 0 3px}.batch-list-meta{display:flex;flex-direction:column;align-items:flex-end;gap:7px;white-space:nowrap}.print-legend,.result-badges{display:flex;align-items:center;gap:6px}.batch-list{display:flex;flex-direction:column;gap:10px}.batch-list-empty{padding:20px 10px;text-align:center;color:var(--muted);font-size:12px;border:1px dashed #c8dcda;border-radius:10px}.batch-row{display:grid;grid-template-columns:minmax(0,2.6fr) auto auto;align-items:center;gap:12px;padding:10px;border:1px solid #d6e8e5;border-radius:12px;background:#fbfefd}.batch-preview-label{display:flex;align-items:center;justify-content:flex-start;overflow:hidden;background:#fff;border:1px solid #e2eeec;border-radius:6px;min-height:70px}.batch-label-canvas{display:block;width:100%;height:auto;image-rendering:auto}.batch-row-info{min-width:0}.batch-row-title{font-weight:800;font-size:14px;line-height:1.35;word-break:break-all;color:var(--ink);margin-bottom:7px}.print-status{display:inline-flex;padding:5px 10px;border-radius:999px;font-size:12px;font-weight:800}.print-status.pending{background:#fff2d8;color:#956016}.print-status.printed{background:#dcf6ee;color:#11725f}.batch-row-actions{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}.batch-row-actions button{min-height:34px;padding:7px 10px;font-size:12px;white-space:nowrap}
.print-note{margin:3px 0 0;color:#b42318;font-size:11px;font-weight:700}
/* 生成二维码页的批次填写规则提示使用红色，避免与普通说明混淆。 */
#tab-generate > .intro-card p{color:var(--danger);font-weight:700}
.print-area{display:none}
@media(max-width:700px){.batch-row{grid-template-columns:1fr;gap:8px}.batch-row-actions{justify-content:flex-start}.batch-preview-label{max-width:100%}}
@media(min-width:701px){.app-shell{width:min(1080px,100%)}.tabs{grid-template-columns:repeat(4,1fr)}}
@media print{
  @page{size:100mm 15mm;margin:0}
  body{margin:0;background:#fff}
  body>*:not(#print-area){display:none!important}
  .print-area{display:block!important;width:10cm;height:1.5cm;margin:0;padding:0;overflow:hidden}
  .print-area canvas,.print-area img{display:block;width:100mm;height:15mm}
  *{-webkit-print-color-adjust:exact;print-color-adjust:exact}
}

/* PDF 标签导出按钮与保存图片、分享并列；窄屏仍自动折行。 */
.action-grid{grid-template-columns:repeat(3,1fr)}

/* v20：批次列表只保留标签、状态和操作，标签列自适应填满剩余空间 */
.batch-row{grid-template-columns:minmax(0,1fr) auto auto}