:root{--color-primary:#6c4dff;--color-primary-dark:#5238d8;--color-bg:#f5f6fa;--color-surface:#fff;--color-border:#e5e7eb;--color-text:#111827;--color-text-muted:#6b7280;--color-success:#22c55e;--color-warning:#f59e0b;--color-danger:#ef4444;--font-size-page-title:24px;--font-size-section-title:18px;--font-size-body:14px;--font-size-caption:12px;color:var(--color-text);font-family:Noto Sans JP,system-ui,sans-serif;font-size:var(--font-size-body)}*{box-sizing:border-box}body{background:var(--color-bg);margin:0}h1,h2,h3{margin:0}button{cursor:pointer;font-family:inherit}.shell{grid-template-columns:240px 1fr;max-width:1600px;min-height:100vh;margin:0 auto;display:grid}.main{flex-direction:column;min-width:0;display:flex}.topbar{z-index:5;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--color-border);background:#f5f6fae6;justify-content:space-between;align-items:center;gap:16px;padding:16px 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var(--color-border);background:var(--color-surface);border-radius:12px;gap:2px;width:100%;padding:12px;display:grid}.sidebar__item.is-active{border-color:var(--color-primary);background:#6c4dff14}.sidebar__item-label{font-weight:600}.sidebar__item-hint{font-size:var(--font-size-caption);color:var(--color-text-muted)}.sidebar__admin{color:var(--color-text-muted);font-size:var(--font-size-caption);margin-top:auto;text-decoration:none}.sidebar__admin:hover{color:var(--color-text)}.panel{background:var(--color-surface);border:1px solid var(--color-border);border-radius:16px;margin-bottom:16px;padding:16px}.panel__title{font-size:var(--font-size-section-title);margin-bottom:12px;font-weight:700}.panel__note{color:var(--color-text-muted);font-size:var(--font-size-caption);margin:10px 0 0}.steps{flex-wrap:wrap;gap:8px;margin:0 0 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var(--color-border);background:var(--color-surface);font-size:var(--font-size-caption);border-radius:999px;padding:6px 12px}.overlay-tab.is-active{border-color:var(--color-primary);background:var(--color-primary);color:#fff}.overlay-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px;display:grid}.overlay-card{border:1.5px solid var(--color-border);background:var(--color-surface);border-radius:12px;justify-items:center;gap:6px;padding:10px;display:grid;position:relative}.overlay-card.is-selected{border-color:var(--color-primary);background:#6c4dff0f}.overlay-card__thumb{background:#f1f2f6;border-radius:8px;place-items:center;width:100%;height:64px;display:grid;overflow:hidden}.overlay-card__thumb img{object-fit:contain;max-width:100%;max-height:100%}.overlay-card__name{font-size:var(--font-size-caption);text-align:center}.overlay-card__badge{background:var(--color-warning);color:#fff;border-radius:999px;padding:2px 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var(--color-border);background:var(--color-surface);font-size:var(--font-size-body);border-radius:12px;min-height:44px;padding:12px 18px;font-weight:600}.btn--primary{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.btn--primary:hover:not(:disabled){background:var(--color-primary-dark)}.btn--ghost{background:var(--color-surface)}.btn--block{width:100%}.btn:disabled{opacity:.45;cursor:not-allowed}.export-panel{gap:14px;display:grid}.export-panel__formats{gap:8px;display:flex}.export-panel__actions{flex-wrap:wrap;gap:10px;display:flex}.export-panel__actions .btn{flex:200px}.bulk__layout{grid-template-columns:minmax(0,1fr) minmax(0,420px);align-items:start;gap:16px;display:grid}.bulk__count-line{font-size:var(--font-size-caption);color:var(--color-text-muted);margin:10px 0}.bulk-grid{grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px;margin:0;padding:0;list-style:none;display:grid}.bulk-grid__cell{border:1px solid var(--color-border);background:var(--color-surface);border-radius:10px;gap:4px;padding:8px;display:grid;position:relative}.bulk-grid__index{color:#fff;background:#111827bf;border-radius:999px;padding:1px 6px;font-size:10px;position:absolute;top:6px;left:6px}.bulk-grid__thumb{object-fit:cover;background:#eee;border-radius:6px;width:100%;height:72px}.bulk-grid__name{text-overflow:ellipsis;white-space:nowrap;font-size:11px;overflow:hidden}.bulk-grid__size{color:var(--color-text-muted);font-size:10px}.bulk-grid__remove{background:var(--color-danger);color:#fff;border:none;border-radius:999px;width:24px;height:24px;line-height:1;position:absolute;top:4px;right:4px}.bulk__formula{margin:12px 0;font-size:15px}.bulk__formula strong{color:var(--color-primary);font-size:18px}.bulk-table__scroll{overflow-x:auto}.bulk-table{border-collapse:collapse;width:100%}.bulk-table th,.bulk-table td,.bulk-table__cell{border:1px solid var(--color-border);text-align:center;vertical-align:middle;padding:6px}.bulk-table thead th{font-size:var(--font-size-caption);background:#f1f2f6}.bulk-table__rowhead{text-align:left;align-items:center;gap:8px;max-width:200px;font-size:11px;display:flex}.bulk-table__src{object-fit:cover;border-radius:6px;width:40px;height:40px}.bulk-table__thumb{border-radius:4px;max-width:132px;height:auto;margin:0 auto;display:block}.bulk-table__loading{color:var(--color-text-muted)}.progress{background:var(--color-border);border-radius:999px;height:22px;margin:8px 0;position:relative;overflow:hidden}.progress__bar{background:var(--color-primary);transition:width .15s;position:absolute;inset:0 auto 0 0}.progress__label{z-index:1;color:var(--color-text);text-align:center;font-size:11px;line-height:22px;display:block;position:relative}.toast{background:var(--color-success);color:#fff;z-index:50;border-radius:999px;padding:12px 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