:root{--ink:#223b32;--muted:#718078;--accent:#26725b;--paper:#f4f7f5;--line:#dce7df;--wash:#eaf2ee;--white:#fff;--danger:#a33f2d}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font:14px/1.6 -apple-system,BlinkMacSystemFont,"Microsoft YaHei","PingFang SC",sans-serif}button,input,select,textarea{font:inherit}button,a,label.upload-zone{ -webkit-tap-highlight-color:transparent}button{border:0;cursor:pointer;color:var(--ink);background:none;min-height:44px;border-radius:8px;padding:10px 14px;font-weight:500}button:disabled{opacity:.42;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}button:hover:not(:disabled){filter:brightness(.96)}h1,h2,h3,p{margin:0}h2{font-size:17px;font-weight:600;line-height:1.5}h3{font-size:14px;font-weight:550}input,select,textarea{color:var(--ink);border:1px solid 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img{width:220px;max-width:100%;height:auto;display:block;margin:auto;border:1px solid var(--line);image-rendering:pixelated}.qr-view #qrNotice{font-size:12px;margin-top:15px;color:var(--muted)}.qr-view dl{display:grid;grid-template-columns:55px 1fr;text-align:left;font-size:11px;gap:9px 10px;border-top:1px solid var(--line);padding-top:18px;margin:20px 0 0}.qr-view dt{color:var(--muted)}.qr-view dd{margin:0;text-align:right;overflow-wrap:anywhere}.result-actions{padding:18px 22px;text-align:center;border-top:1px solid var(--line)}.result-actions .primary{width:100%;font-size:13px}.result-actions .quiet{margin-top:9px;border:0;min-height:32px;padding:3px 12px;font-size:12px}.result-actions p{color:var(--muted);font-size:10px;line-height:1.8;margin-top:8px}.workspace-footer{font-size:11px;text-align:center;color:var(--muted);padding-top:28px}.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);z-index:50;max-width:calc(100vw - 32px);padding:12px 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button{border:0}.image-dialog-body{overflow:auto;overscroll-behavior:contain;min-height:0;padding:16px;background:var(--wash)}.image-dialog-body img{display:block;width:100%;height:auto;max-width:450px;margin:auto}.image-dialog>p{font-size:11px;text-align:center;padding:12px;color:var(--muted);flex-shrink:0}body:has(dialog[open]){overflow:hidden}@media(min-width:1450px){.workspace{padding-top:46px}.columns{gap:36px;grid-template-columns:minmax(0,1fr) 410px}.poster-view{max-height:700px}}@media(max-width:1000px){.columns{grid-template-columns:minmax(0,1fr) 340px;gap:20px}.panel,.student-fields{grid-template-columns:1fr 1fr}.grade-field{grid-column:1/-1}.grade-field select{max-width:160px}.upload-zone{flex-wrap:wrap}.upload-action{display:none}.workspace-intro h1{font-size:24px}.section-heading .hint{max-width:140px;text-align:right}.course-title{align-items:flex-start}.course-title .hint{font-size:10px;max-width:120px;text-align:right}}@media(max-width:760px){.topbar{height:62px;padding:0 20px}.brand{font-size:15px;gap:8px}.brand-mark{width:28px;height:28px;border-radius:8px;font-size:14px}.service{font-size:10px}.service button{padding:6px;font-size:11px}.workspace{padding:26px 16px}.workspace-intro{display:block;position:relative;margin-bottom:20px;padding-right:0}.workspace-intro h1{font-size:23px}.workspace-intro p{font-size:12px;max-width:270px}.workspace-intro>.quiet{margin-top:14px;font-size:12px;min-height:36px;padding:5px 10px}.columns{display:flex;flex-direction:column;gap:24px}.editor,.result-panel{width:100%}.editor{gap:18px}.result-panel{position:static}.panel,.section-heading{margin-bottom:18px}.section-heading .hint{max-width:none;font-size:10px}h2{font-size:16px}.upload-zone{padding:17px 14px;gap:10px}.upload-zone strong{font-size:12px}.upload-zone small{font-size:10px}.upload-zone svg{width:22px;flex-shrink:0}.student-fields{grid-template-columns:1fr 1fr;gap:16px 12px}.grade-field{grid-column:auto}.grade-field select{max-width:none}.grade-field{grid-column:1/-1}.grade-field select{max-width:160px}.course-title .hint{max-width:none}.course-row{padding:15px 0}.course-row small{font-size:10px}.course-list{padding:0 12px}.omo-toggle small{font-size:10px;margin-left:5px}.amount-total strong{font-size:28px}.result-heading{padding:20px}.poster-view{max-height:540px;padding:18px;display:flex;justify-content:center}.poster-view canvas{max-width:375px;align-self:flex-start}.result-actions{padding:16px 20px}.preview-empty{min-height:290px;padding:30px}.workspace-footer{text-align:left;line-height:1.8;padding-top:22px}.mode-notice{font-size:11px;margin-bottom:18px}.qr-view img{width:230px}.toast{bottom:18px;width:max-content;max-width:calc(100vw - 32px)}}@media(max-width:360px){.topbar{padding:0 14px}.workspace{padding:20px 12px}.workspace-intro h1{font-size:21px}.panel,.section-heading{gap:6px}.section-heading .hint{font-size:9px}.upload-zone strong{font-size:11px}.stepper{grid-template-columns:30px 30px 30px}.stepper input{width:30px}.course-title .hint{max-width:110px}.omo-toggle small{display:block;text-align:left;margin:0}.amount-total strong{font-size:25px}.brand{font-size:14px}.service{font-size:9px}}

.student-fields{grid-template-columns:1fr 1fr}.pricing-plan{margin-bottom:22px;max-width:220px}.quote-actions{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}.quote-actions button{padding:10px 8px;white-space:nowrap;font-size:12px;min-width:0}.quote-actions .primary{font-weight:550}.feedback[data-tone=error]{border:1px solid #ebd4cf;background:#fff7f5}.feedback[data-tone=success]{background:var(--wash);color:var(--accent)}@media(max-width:360px){.quote-actions{gap:6px}.quote-actions button{padding:10px 3px;font-size:11px}}

.admin-link{font-size:12px;color:var(--accent);text-decoration:none;padding:8px 4px;white-space:nowrap}

@media(max-width:360px){.topbar .service{gap:4px}.topbar .admin-link{font-size:10px;padding:4px 2px}}