:root{--ink:#171717;--paper:#fff;--ground:#f3f3ef;--line:#d8d8d2;--accent:#e8ff59;--muted:#676763;--danger:#ad2929;--shadow:4px 4px 0 var(--ink)}
*{box-sizing:border-box}body{margin:0;background:var(--ground);color:var(--ink);font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;font-size:16px;line-height:1.5}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}button:disabled{opacity:.4;cursor:not-allowed}a{color:inherit}svg.icon{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}button{border:2px solid var(--ink);border-radius:0;background:#fff;padding:10px 15px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:700;min-height:44px;transition:background .12s,transform .12s,box-shadow .12s}button:hover:not(:disabled){background:var(--ground)}button:active:not(:disabled){transform:translate(2px,2px)}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible{outline:3px solid var(--ink);outline-offset:3px}button.primary{background:var(--accent);box-shadow:3px 3px 0 var(--ink)}button.primary:hover:not(:disabled){background:#dcf341}button.text-button{border:0;background:transparent;padding:7px 10px;font-size:14px;min-height:40px}button.text-button:hover{background:#e9e9e4}button.dark{background:var(--ink);color:white}button.dark:hover:not(:disabled){background:#333}button.icon-button{width:36px;min-height:36px;padding:7px;border:1px solid var(--line)}button.icon-button:hover{border-color:var(--ink)}.danger{color:var(--danger)}.mono{font-family:"Consolas","SFMono-Regular",monospace;font-variant-numeric:tabular-nums}header{border-bottom:2px solid var(--ink);background:var(--paper)}.topbar{max-width:1600px;margin:auto;padding:22px 36px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:15px}.mark{height:44px;width:44px;background:var(--ink);color:var(--accent);display:grid;place-content:center}.mark svg{width:27px;height:27px}.brand p{margin:0;font-size:12px;letter-spacing:1.5px;font-weight:700}.brand h1{font-size:27px;letter-spacing:-1px;line-height:1.25;margin:3px 0 0}.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:flex-end}.toolbar .template{margin-right:8px}.page{max-width:1600px;padding:27px 36px 24px;margin:auto}.overview{display:flex;align-items:center;gap:24px;margin-bottom:23px}.total{display:flex;align-items:center;gap:13px}.total .count{font-size:44px;line-height:1;font-weight:800;letter-spacing:-2px}.total .label{font-size:14px}.divider{height:30px;width:1px;background:#c7c7bf}.split-count{display:flex;gap:20px;font-size:14px}.split-count b{font-size:18px;margin-left:7px}.local-note{margin-left:auto;display:flex;align-items:center;gap:7px;color:var(--muted);font-size:13px}.local-note svg{width:15px;height:15px}.workspace{display:grid;grid-template-columns:374px minmax(0,1fr);gap:25px;align-items:start}.panel{background:var(--paper);border:2px solid var(--ink)}.input-panel{box-shadow:var(--shadow)}.panel-heading{display:flex;align-items:center;justify-content:space-between;border-bottom:2px solid var(--ink);padding:17px 20px}.heading-title{display:flex;align-items:center;gap:10px}.step{font-size:13px;font-weight:700;padding-right:10px;border-right:1px solid #aaa;line-height:1.2}.panel-heading h2{margin:0;font-size:19px}.tiny{font-size:12px;color:var(--muted);letter-spacing:.8px}.form-body{padding:20px}.field{margin-bottom:16px}.field label,.field legend{font-size:14px;font-weight:700;display:block;margin-bottom:7px}.field label .optional{font-weight:400;color:var(--muted)}fieldset.field{margin:0 0 16px;padding:0;border:0;min-width:0}.field input,.field select,.field textarea{width:100%;min-height:45px;border:1.5px solid var(--ink);background:#fff;padding:9px 11px;border-radius:0;outline-offset:2px;font-size:16px}.field input::placeholder{color:#9b9b95}.field input:focus{background:#fbfdec}.field input[aria-invalid="true"]{border-color:var(--danger);background:#fff6f6}.field input:read-only{background:#f1f1ec;color:var(--muted)}.segments{display:flex;gap:0}.segments label{position:relative;flex:1;cursor:pointer;margin:0;font-weight:400;min-width:0}.segments label+label .segment-label{border-left:0}.segments input{position:absolute;opacity:0;width:1px;height:1px;min-height:0;padding:0;pointer-events:none}.segment-label{display:flex;gap:7px;align-items:center;justify-content:center;border:1.5px solid var(--ink);min-height:43px;font-size:14px;background:#fff}.segment-label:before{content:"";width:9px;height:9px;border:1.5px solid var(--ink);border-radius:50%}.segments input:checked+.segment-label{background:var(--ink);color:#fff;font-weight:700}.segments input:checked+.segment-label:before{border-color:var(--accent);background:var(--accent)}.segments input:focus-visible+.segment-label{outline:3px solid var(--ink);outline-offset:3px}.two-fields{display:grid;grid-template-columns:1.35fr 1fr;gap:16px}.label-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:7px;gap:8px}.label-row>label{margin:0}.check{display:flex!important;align-items:center;gap:6px!important;font-weight:400!important;font-size:13px!important;margin:0!important;cursor:pointer}.check input{width:15px!important;height:15px;min-height:0!important;padding:0;accent-color:var(--ink);cursor:pointer}.error-text{font-size:13px;color:var(--danger);margin:5px 0 0;min-height:0}.form-error{display:none;background:#fff1ef;border-left:3px solid var(--danger);padding:9px 10px;margin-bottom:14px;font-size:14px;color:var(--danger)}.form-error.visible{display:block}.form-footer{border-top:1px solid var(--line);padding-top:16px}.save{width:100%;font-size:16px;min-height:49px}.save svg{width:20px;height:20px}.entry-options{display:flex;justify-content:space-between;align-items:center;margin:14px 0 0;gap:10px}.keyboard-hint{display:flex;align-items:center;justify-content:center;gap:7px;color:var(--muted);font-size:12px;margin:16px 0 0}.keyboard-hint kbd{font-family:inherit;border:1px solid #c7c7c0;padding:0 4px;background:#f9f9f6;font-size:11px}.registry-heading{padding:17px 22px}.count-pill{font-size:13px;padding:2px 8px;background:var(--ground);border:1px solid var(--line);margin-left:2px}.list-tools{padding:16px 20px;display:flex;gap:12px;border-bottom:1px solid var(--line)}.search-box{display:flex;align-items:center;border:1px solid var(--ink);padding:0 11px;flex:1;min-width:0;gap:8px}.search-box svg{color:var(--muted);width:17px}.search-box input{width:100%;padding:9px 0;min-height:42px;border:0;background:none;outline:0;font-size:14px;min-width:0}.search-box:focus-within{outline:2px solid var(--ink);outline-offset:2px}.list-tools select{border:1px solid var(--ink);border-radius:0;background:white;padding:7px 28px 7px 10px;font-size:14px;width:128px}.table-wrap{overflow:auto;min-height:391px;max-height:620px;position:relative}table{width:100%;border-collapse:collapse;white-space:nowrap;font-size:14px;text-align:left}thead{background:#f1f1ec;position:sticky;top:0;z-index:1}th{font-weight:500;font-size:12px;color:#54544f;padding:13px 14px;border-bottom:1px solid var(--ink)}td{padding:15px 14px;border-bottom:1px solid #e3e3dc;vertical-align:middle}th:first-child,td:first-child{padding-left:20px}th:last-child,td:last-child{padding-right:20px}.row-number{font-size:12px;color:#92928a}.name-cell{font-weight:700;max-width:200px;white-space:normal;min-width:100px;overflow-wrap:anywhere}.song-cell{max-width:230px;white-space:normal;min-width:150px;overflow-wrap:anywhere}.badge{display:inline-block;border:1px solid var(--ink);padding:2px 6px;font-size:12px;white-space:nowrap}.badge.student{background:var(--accent)}tr.editing td{background:#f4f8dd}tbody tr:hover td{background:#fafaf5}.phone-cell{font-family:"Consolas",monospace;font-size:13px}.actions-cell{display:flex;gap:6px}.empty{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:315px;text-align:center;padding:24px;color:var(--muted)}.empty-symbol{border:2px solid var(--ink);height:55px;width:55px;display:grid;place-content:center;color:var(--ink);box-shadow:3px 3px 0 #ddd;margin-bottom:20px}.empty-symbol svg{height:28px;width:28px}.empty h3{font-size:19px;color:var(--ink);margin:0 0 8px;font-weight:700}.empty p{font-size:14px;margin:0 0 18px}.list-footer{border-top:1px solid var(--line);padding:12px 20px;display:flex;gap:10px;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted)}.list-footer button{min-height:30px;font-size:12px;padding:3px 7px}.footer{display:flex;align-items:center;justify-content:space-between;color:#77776d;font-size:12px;margin-top:25px;gap:16px}.footer p{margin:0}.footer b{color:var(--ink);font-weight:600}.footer span{letter-spacing:1px}.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;border:2px solid var(--ink);padding:12px 19px;display:flex;gap:11px;align-items:center;box-shadow:3px 3px 0 #aaa;z-index:20;max-width:calc(100vw - 32px);font-size:14px}.toast[hidden]{display:none}.toast button{border:1px solid #888;background:transparent;color:var(--accent);padding:3px 9px;min-height:30px;white-space:nowrap}.toast .icon{color:var(--accent)}dialog{color:var(--ink);border:2px solid var(--ink);border-radius:0;padding:0;width:min(710px,calc(100vw - 32px));max-height:calc(100dvh - 48px);box-shadow:6px 6px 0 #000;overflow:auto}dialog::backdrop{background:#17171777}.dialog-heading{display:flex;justify-content:space-between;align-items:center;border-bottom:2px solid var(--ink);padding:18px 22px}.dialog-heading h2{font-size:21px;margin:0}.dialog-heading .icon-button{border:0}.dialog-body{padding:22px}.dialog-body>p{font-size:14px;color:var(--muted);margin:0 0 20px}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;padding:16px 22px;border-top:1px solid var(--line)}.import-metadata{display:flex;justify-content:space-between;gap:10px;align-items:center;background:var(--ground);border:1px solid var(--line);padding:12px;font-size:14px;margin-bottom:18px}.filename{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:65%}.import-counts{display:flex;gap:14px;font-size:14px;margin:13px 0}.import-counts b{font-size:20px;margin-right:5px}.import-problems{border:1px solid #deb8af;background:#fff4f0;font-size:13px;padding:12px;max-height:130px;overflow:auto;overflow-wrap:anywhere;margin:12px 0}.import-problems p{margin:2px 0}.import-preview{overflow:auto;border:1px solid var(--line);max-height:240px}.import-preview th,.import-preview td{padding:8px 10px;font-size:12px}.radio-options{display:flex;gap:20px;margin:19px 0 12px;font-size:14px}.radio-options label{display:flex;align-items:center;gap:6px;cursor:pointer}.radio-options input{accent-color:var(--ink)}.import-note{font-size:12px!important;color:var(--muted);margin:11px 0 0!important}.hidden{display:none!important}.sr-only{position:absolute;clip:rect(0,0,0,0);clip-path:inset(50%);width:1px;height:1px;overflow:hidden;white-space:nowrap}.storage-warning{background:#fff0eb;border:1px solid #b85a42;padding:10px 14px;color:#9b321d;font-size:14px;margin-bottom:18px}.busy{cursor:progress}.json-actions{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0 18px}.field textarea{resize:vertical;min-height:155px;font-size:13px;line-height:1.6}.console-steps{padding-left:23px;font-size:14px;margin:0 0 20px}.console-steps li+li{margin-top:9px}.console-code{min-height:98px!important;overflow-wrap:anywhere}.draft-option{border:1px solid var(--ink);padding:12px;margin-top:16px;background:#f6fbdc}.draft-option p{font-size:13px;margin:7px 0 0;color:var(--muted)}
.paste-tools{margin-bottom:19px;padding-bottom:17px;border-bottom:1px solid var(--line)}.paste-tools button{width:100%;font-size:14px;background:var(--ground)}.paste-tools p{font-size:13px;color:var(--muted);margin:8px 0 0}.paste-status{font-size:13px;background:#f6fbdc;border-left:3px solid var(--ink);padding:9px 11px;margin-bottom:15px;overflow-wrap:anywhere}.payment-badge.paid{background:var(--accent)}.payment-badge.unpaid{border-style:dashed}.song-empty{font-size:12px;color:#91918a}
th:last-child,td:last-child{position:sticky;right:0;background:#fff;border-left:1px solid var(--line)}thead th:last-child{background:#f1f1ec}tr.editing td:last-child{background:#f4f8dd}
@media(min-width:1450px){.workspace{grid-template-columns:400px minmax(0,1fr)}}
@media(max-width:1100px){.topbar,.page{padding-left:24px;padding-right:24px}.workspace{grid-template-columns:340px minmax(0,1fr);gap:20px}.toolbar{gap:8px}.toolbar .template{margin:0}.toolbar button{padding:9px 11px}.local-note{font-size:12px}.form-body{padding:18px}.list-tools{padding:14px}.registry-heading{padding:17px 16px}}
@media(max-width:820px){.topbar{align-items:flex-start;flex-direction:column;gap:18px;padding:20px}.toolbar{width:100%}.toolbar .template{margin-right:0}.toolbar button{font-size:13px}.page{padding:22px 20px}.workspace{grid-template-columns:1fr;gap:25px}.overview{flex-wrap:wrap;gap:16px}.local-note{width:100%;margin:0;padding-top:5px}.input-panel{box-shadow:3px 3px 0 var(--ink)}.form-body{padding:20px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}.form-grid>.wide{grid-column:1/-1}.table-wrap{min-height:330px}.empty{min-height:260px}.footer{align-items:flex-start}.footer span{display:none}.brand h1{font-size:25px}.total .count{font-size:38px}}
@media(max-width:480px){.topbar{padding:18px 16px}.page{padding:20px 16px}.toolbar .template{font-size:12px;padding:8px 0}.toolbar .template svg{display:none}.toolbar button{padding:8px 10px;gap:5px}.toolbar svg{width:16px}.form-grid{display:block}.form-body{padding:18px}.overview{gap:13px}.split-count{gap:12px}.total{gap:9px}.list-tools{gap:8px}.list-tools select{width:112px}.panel-heading{padding:15px 16px}.list-footer{padding:12px}.dialog-body{padding:17px}.dialog-actions{padding:14px 17px}.footer{font-size:12px}.entry-options{gap:4px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.format-menu{position:relative}.toolbar .format-trigger{min-width:106px;justify-content:space-between;padding:10px 16px}.menu-mark{font:18px "Consolas",monospace;margin-left:16px;line-height:1}.format-trigger[aria-expanded="true"]{background:var(--accent);box-shadow:3px 3px 0 var(--ink)}.format-popup{position:absolute;right:0;top:calc(100% + 8px);width:195px;background:white;border:2px solid var(--ink);box-shadow:4px 4px 0 var(--ink);padding:5px;z-index:15}.format-popup[hidden]{display:none}.toolbar .format-popup button{border:0;width:100%;justify-content:space-between;padding:11px 12px;min-height:44px;font-size:14px}.toolbar .format-popup button:hover:not(:disabled),.toolbar .format-popup button:focus-visible{background:var(--accent)}.toolbar .format-popup .template-item{border-top:1px solid var(--line);margin-top:4px;padding-top:13px;color:var(--muted)}.menu-detail{font-size:12px;font-weight:400;color:var(--muted)}.image-dialog{width:min(1040px,calc(100vw - 32px))}.image-nav{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-bottom:15px}.image-nav .page-controls{display:flex;gap:8px;align-items:center}.image-nav select{border:1.5px solid var(--ink);background:white;padding:7px 10px;min-height:44px;border-radius:0}.image-nav button{padding:8px 12px}.image-preview{overflow:auto;background:var(--ground);border:1px solid var(--line);min-height:120px;max-height:58dvh;padding:12px;text-align:center}.image-preview img{display:block;width:100%;height:auto;background:white}.image-status{font-size:14px;margin-bottom:12px}.image-dialog .dialog-body{padding-bottom:16px}
@media(max-width:480px){.toolbar{justify-content:flex-start;gap:8px}.toolbar .format-trigger{min-width:86px;padding:9px 12px}.format-menu:first-child .format-popup{left:0;right:auto}.image-dialog .dialog-actions{flex-wrap:wrap}.image-nav{gap:12px}.image-nav .page-controls{width:100%;justify-content:space-between}.image-preview{padding:6px}.radio-options{flex-wrap:wrap;gap:12px}}


.database-panel{display:flex;align-items:center;justify-content:space-between;gap:16px;border:2px solid var(--ink);background:#f6fbdc;padding:14px 18px;margin-bottom:22px}
.database-panel p{font-size:14px;margin:4px 0 0;overflow-wrap:anywhere}.database-panel.has-error{background:#fff4f0}.database-actions{display:flex;gap:8px;flex-wrap:wrap;flex-shrink:0}
[hidden]{display:none!important}#confirmDescription{white-space:pre-wrap;overflow-wrap:anywhere}
@media(max-width:820px){.database-panel{align-items:flex-start;flex-direction:column}.database-actions{width:100%}.database-actions button{font-size:13px}}
.workspace>.panel{min-width:0}.database-panel>div:first-child{min-width:0}