*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-bg: #f8f8f8;--color-surface: #ffffff;--color-border: #e0e0e0;--color-text: #1a1a1a;--color-muted: #6b7280;--color-accent: #2563eb;--color-accent-hover: #1d4ed8;--color-danger: #dc2626;--color-danger-hover: #b91c1c;--radius: 8px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);--sidebar-width: 220px;--header-height: 52px;--footer-height: 56px}html,body{height:100%}body{font-family:system-ui,-apple-system,sans-serif;font-size:14px;background:var(--color-bg);color:var(--color-text);line-height:1.5}.tool-section{min-height:calc(100vh - var(--header-height));display:flex;flex-direction:column}#app{display:flex;flex-direction:column;flex:1;min-height:0}.content-section{padding:40px max(20px,calc((100% - 760px)/2));width:100%;border-top:1px solid var(--color-border);background:var(--color-bg)}.content-section:empty{display:none}.content-section article{margin-bottom:32px}.content-section article>h2{font-size:20px;font-weight:600;margin-bottom:12px;color:var(--color-text)}.content-section article>p{color:var(--color-text);line-height:1.6}.content-section article>p+p{margin-top:12px}.content-section .content-list{margin:12px 0 0;padding-left:22px;color:var(--color-text);line-height:1.6}.content-section .content-list li{margin-bottom:8px}.content-section .content-list li:last-child{margin-bottom:0}.content-section .content-list+p{margin-top:12px}.faq-item{border-bottom:1px solid var(--color-border);padding:12px 0}.faq-item>summary{cursor:pointer;font-weight:500;list-style:none;position:relative;padding-right:24px}.faq-item>summary::-webkit-details-marker{display:none}.faq-item>summary:after{content:"+";position:absolute;right:0;top:0;color:var(--color-muted);font-size:18px;line-height:1}.faq-item[open]>summary:after{content:"−"}.faq-item>p{margin-top:8px;color:var(--color-muted);line-height:1.6}.faq-item>p+p{margin-top:8px}.faq-item .content-list{color:var(--color-muted)}.site-footer{padding:20px;display:flex;flex-wrap:wrap;justify-content:center;gap:16px 20px;border-top:1px solid var(--color-border);background:var(--color-surface);font-size:13px}.site-footer a{color:var(--color-muted);text-decoration:none}.site-footer a:hover{color:var(--color-accent)}.site-version{color:var(--color-muted);opacity:.7;font-variant-numeric:tabular-nums}@media(max-width:480px){.site-header{flex-wrap:wrap;height:auto;padding:8px 12px;gap:8px}.site-nav{gap:8px;flex-wrap:wrap}.bmc-link{padding:0 8px;font-size:12px}.site-footer{gap:8px 14px;font-size:12px}}header{height:var(--header-height);background:var(--color-surface);border-bottom:1px solid var(--color-border);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 20px;box-shadow:var(--shadow);position:sticky;top:0;z-index:10}header h1,.site-title{font-size:18px;font-weight:700;letter-spacing:.04em;color:var(--color-accent);text-decoration:none}.site-nav{display:flex;align-items:center;gap:12px}.bmc-link{display:inline-flex;align-items:center;gap:4px;height:32px;padding:0 12px;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:var(--color-text);font-size:13px;text-decoration:none;transition:background .15s,border-color .15s,color .15s}.bmc-link:hover{border-color:var(--color-accent);color:var(--color-accent)}.language-switcher{height:32px;padding:0 8px;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:var(--color-text);font-size:13px;cursor:pointer}.tool-row{display:flex;flex:1;min-height:0}#settings{width:var(--sidebar-width);flex-shrink:0;background:var(--color-surface);border-right:1px solid var(--color-border);overflow-y:auto}.settings-toggle{display:none}.settings-body{padding:16px 12px}.settings-panel{display:flex;flex-direction:column;gap:18px}.settings-row{display:flex;flex-direction:column;gap:6px}.settings-row label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--color-muted)}.preset-buttons{display:flex;flex-wrap:wrap;gap:4px}.preset-btn{padding:4px 10px;border:1px solid var(--color-border);border-radius:20px;background:var(--color-surface);color:var(--color-text);font-size:12px;cursor:pointer;transition:background .15s,border-color .15s,color .15s}.preset-btn:hover{border-color:var(--color-accent);color:var(--color-accent)}.preset-btn.active{background:var(--color-accent);border-color:var(--color-accent);color:#fff}.mode-buttons{display:flex;flex-wrap:wrap;gap:4px}.mode-btn{padding:4px 10px;border:1px solid var(--color-border);border-radius:20px;background:var(--color-surface);color:var(--color-text);font-size:12px;white-space:nowrap;cursor:pointer;transition:background .15s,border-color .15s,color .15s}.mode-btn:hover{border-color:var(--color-accent);color:var(--color-accent)}.mode-btn.active{background:var(--color-accent);border-color:var(--color-accent);color:#fff}.mode-btn-wrap{position:relative;display:inline-flex}.mode-tooltip{position:fixed;top:0;left:0;width:max-content;max-width:220px;display:flex;flex-direction:column;gap:6px;padding:10px;border-radius:10px;background:var(--color-surface);border:1px solid var(--color-border);box-shadow:0 8px 24px #0000002e;color:var(--color-text);text-align:left;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .15s ease,visibility .15s;z-index:1000}.mode-tooltip.visible{opacity:1;visibility:visible}.mode-tooltip-media{display:block;width:100%;height:auto;border-radius:6px;background:var(--color-bg, #f4f4f5)}.mode-tooltip-heading{font-size:13px;font-weight:600}.mode-tooltip-text{font-size:12px;line-height:1.4;opacity:.85}.slice-stepper{display:flex;align-items:center;gap:8px}.slice-minus,.slice-plus{width:28px;height:28px;border:1px solid var(--color-border);border-radius:50%;background:var(--color-surface);color:var(--color-text);font-size:16px;line-height:1;cursor:pointer}.slice-minus:hover:not(:disabled),.slice-plus:hover{border-color:var(--color-accent);color:var(--color-accent)}.slice-minus:disabled{opacity:.4;cursor:not-allowed}.slice-count-value{min-width:24px;text-align:center;font-variant-numeric:tabular-nums}.custom-ratio-row{display:flex;flex-direction:row!important;align-items:center;gap:6px}.ratio-input{width:52px;padding:4px 6px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:13px;text-align:center;background:var(--color-surface);color:var(--color-text)}.ratio-input:focus{outline:2px solid var(--color-accent);outline-offset:1px;border-color:transparent}.width-input{width:100%;padding:5px 8px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:13px;background:var(--color-surface);color:var(--color-text)}.width-input:focus{outline:2px solid var(--color-accent);outline-offset:1px;border-color:transparent}.info-card-fields-block,.background-treatment-block{display:flex;flex-direction:column;gap:10px;margin-top:18px}.info-card-fields-heading,.background-treatment-heading{margin:0;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--color-muted)}.info-field-row>label{display:flex;align-items:center;gap:6px;text-transform:none;letter-spacing:0;font-size:13px;font-weight:500;color:var(--color-text);cursor:pointer}.info-field-row .info-field-visibility{accent-color:var(--color-accent);cursor:pointer}.info-field-head{display:flex;align-items:center;gap:6px}.info-field-head>label{flex:1 1 auto}.info-field-separator-toggle{margin-left:auto;flex:0 0 auto;width:26px;height:22px;padding:0;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:var(--color-muted);font-size:14px;line-height:1;cursor:pointer;transition:background .12s,color .12s,border-color .12s}.info-field-separator-toggle:hover{border-color:var(--color-accent);color:var(--color-text)}.info-field-separator-toggle.active{background:var(--color-accent);border-color:var(--color-accent);color:#fff}.info-field-separator-toggle[hidden]{display:none}.info-field-input{width:100%;padding:5px 8px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:13px;background:var(--color-surface);color:var(--color-text)}.info-field-input:focus{outline:2px solid var(--color-accent);outline-offset:1px;border-color:transparent}.info-field-input[hidden]{display:none}.info-field-row{transition:background .12s,opacity .12s}.info-field-row .info-field-drag-handle{color:var(--color-muted);cursor:grab;user-select:none;font-size:14px;line-height:1}.info-field-row.dragging{opacity:.5}.info-field-row.drop-target{box-shadow:inset 0 2px 0 0 var(--color-accent)}.format-select{width:100%;padding:5px 8px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:13px;background:var(--color-surface);color:var(--color-text);cursor:pointer}.format-select:focus{outline:2px solid var(--color-accent);outline-offset:1px}.quality-slider{width:100%;accent-color:var(--color-accent);cursor:pointer}.quality-value{font-weight:400;color:var(--color-text);text-transform:none;letter-spacing:0}.border-row{flex-direction:row!important;flex-wrap:wrap;align-items:center;gap:8px}.border-row>label{flex-basis:100%}.border-width-input{width:64px;padding:4px 6px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:13px;text-align:center;background:var(--color-surface);color:var(--color-text)}.border-width-input:focus{outline:2px solid var(--color-accent);outline-offset:1px;border-color:transparent}.border-width-unit{font-size:12px;color:var(--color-text);opacity:.7}.border-color-input{width:36px;height:28px;padding:0;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);cursor:pointer;margin-left:auto}.watermark-row{flex-direction:row!important;flex-wrap:wrap;align-items:center;gap:8px}.watermark-row>label{flex-basis:100%}.wm-mode-buttons{display:flex;gap:4px}.wm-mode-btn{padding:4px 10px;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:var(--color-text);font-size:12px;cursor:pointer}.wm-mode-btn.active{background:var(--color-accent);color:#fff;border-color:var(--color-accent)}.wm-sub-panel{display:flex;flex-direction:column;gap:8px;padding:8px 12px;border-left:2px solid var(--color-border);margin-left:4px}.wm-sub-panel .settings-row{flex-direction:row!important;align-items:center;gap:8px}.wm-text-content,.wm-text-size,.wm-image-width,.wm-padding{flex:1;min-width:0;padding:4px 6px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:13px;background:var(--color-surface);color:var(--color-text)}.wm-text-size,.wm-image-width,.wm-padding{width:70px;flex:0 0 70px;text-align:center}.wm-image-choose{padding:4px 10px;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:var(--color-text);font-size:12px;cursor:pointer}.wm-image-thumb{width:36px;height:36px;object-fit:contain;border:1px solid var(--color-border);border-radius:var(--radius);background:#00000010}.wm-pos-grid{display:grid;grid-template-columns:repeat(3,18px);grid-template-rows:repeat(3,18px);gap:3px;margin-left:auto}.wm-pos-cell{width:18px;height:18px;padding:0;border:1px solid var(--color-border);border-radius:3px;background:var(--color-surface);cursor:pointer}.wm-pos-cell.active{background:var(--color-accent);border-color:var(--color-accent)}.crop-watermark-area{z-index:2}.wm-preview-text,.wm-preview-image{display:inline-block}#batch-grid{flex:1;overflow-y:auto;padding:20px}.drop-zone{height:100%;min-height:300px;border:2px dashed var(--color-border);border-radius:var(--radius);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:28px 20px;color:var(--color-muted);transition:border-color .2s,background .2s}#batch-grid.drag-over .drop-zone{border-color:var(--color-accent);background:#eff6ff}#batch-grid.drag-over .grid{outline:2px dashed var(--color-accent);outline-offset:4px;border-radius:var(--radius)}.drop-zone p{font-size:14px}.drop-zone-illustration{width:200px;max-width:55%;height:auto;margin-bottom:6px}.drop-zone .drop-zone-headline{font-size:16px;font-weight:600;color:var(--color-text)}.drop-zone .drop-zone-or{font-size:13px}.drop-zone-about{margin-top:40px;max-width:420px;text-align:center}.drop-zone .drop-zone-intro{font-size:13px;color:var(--color-text);margin-bottom:12px}.drop-zone-benefits{list-style:none;display:inline-flex;flex-direction:column;gap:7px;text-align:left;padding:0;margin:0}.drop-zone-benefits li{position:relative;padding-left:24px;font-size:13px;color:var(--color-muted);line-height:1.4}.drop-zone-benefits li:before{content:"✓";position:absolute;left:0;top:0;color:var(--color-accent);font-weight:700}.file-label{display:inline-block;padding:8px 18px;background:var(--color-accent);color:#fff;border-radius:var(--radius);cursor:pointer;font-size:13px;font-weight:500;transition:background .15s}.file-label:hover{background:var(--color-accent-hover)}.grid-toolbar{display:flex;align-items:center;margin-bottom:14px}.file-label.add-more{padding:6px 14px;font-size:12px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px}.thumbnail{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--color-border);box-shadow:var(--shadow);cursor:pointer;aspect-ratio:1;transition:transform .15s,box-shadow .15s}.thumbnail:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000001f}.thumbnail img{width:100%;height:100%;object-fit:cover;display:block}.remove-btn{position:absolute;top:5px;right:5px;width:22px;height:22px;border:none;border-radius:50%;background:#00000080;color:#fff;font-size:11px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .15s,background .15s}.thumbnail:hover .remove-btn{opacity:1}.remove-btn:hover{background:var(--color-danger)}.low-res-badge{position:absolute;top:5px;left:5px;width:20px;height:20px;border-radius:50%;background:#f59e0b;color:#fff;font-size:13px;font-weight:700;line-height:20px;text-align:center;pointer-events:auto;cursor:help;box-shadow:0 1px 3px #00000040}.low-res-hint{background:#fef3c7;border:1px solid #fcd34d;border-radius:var(--radius);padding:10px 12px;margin-bottom:14px;font-size:13px;color:#78350f;display:flex;flex-direction:column;gap:8px}.low-res-hint.is-active{background:#ecfdf5;border-color:#6ee7b7;color:#064e3b}.low-res-hint p{margin:0;line-height:1.4}.btn-activate-guard,.btn-deactivate-guard{align-self:flex-start;padding:5px 12px;background:#f59e0b;color:#fff;border:none;border-radius:var(--radius);font-size:12px;font-weight:500;cursor:pointer}.btn-activate-guard:hover,.btn-deactivate-guard:hover{background:#d97706}#crop-editor{flex:1;overflow-y:auto;padding:20px}.crop-editor{display:flex;flex-direction:column;align-items:center;gap:16px;width:100%;margin:0 auto}.crop-editor-toolbar{width:100%;display:flex;align-items:center;gap:12px}.btn-back{padding:6px 14px;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);color:var(--color-text);font-size:13px;cursor:pointer;transition:background .15s,border-color .15s;white-space:nowrap}.btn-back:hover{background:var(--color-bg);border-color:var(--color-accent);color:var(--color-accent)}.crop-filename{flex:1;font-size:13px;color:var(--color-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.crop-nav{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--color-muted);white-space:nowrap}.btn-nav{padding:4px 10px;border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);font-size:16px;cursor:pointer;line-height:1;transition:background .15s,border-color .15s}.btn-nav:hover:not(:disabled){border-color:var(--color-accent);color:var(--color-accent)}.btn-nav:disabled{opacity:.35;cursor:default}.crop-viewport{border-radius:var(--radius);box-shadow:0 2px 16px #0000001f;overflow:hidden;border:1px solid var(--color-border)}.crop-frame{pointer-events:none;box-shadow:0 0 0 9999px #0000008c}.crop-border-preview{position:absolute;inset:0;pointer-events:none;border-style:solid;box-sizing:border-box}.crop-editor-actions{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px}.crop-info-card-preview{display:flex;justify-content:center;max-width:100%}.crop-info-card-preview img{display:block;width:auto;height:auto;max-width:100%;max-height:calc(100vh - 220px);object-fit:contain;border-radius:var(--radius);box-shadow:0 2px 16px #0000001f;border:1px solid var(--color-border)}.crop-editor-actions small{color:var(--color-muted);font-size:12px}.crop-shortcuts-hint,.crop-split-degenerate-hint{display:block;width:100%;margin-top:8px;text-align:center;color:var(--color-muted);font-size:12px}#crop-viewmode{padding:7px 14px;font-size:13px;font-weight:500;line-height:1.2}.btn-download{padding:7px 18px;background:var(--color-surface);border:1px solid var(--color-accent);color:var(--color-accent);border-radius:var(--radius);font-size:13px;font-weight:500;cursor:pointer;transition:background .15s,color .15s}.btn-download:hover{background:var(--color-accent);color:#fff}#export-bar{height:var(--footer-height);background:var(--color-surface);border-top:1px solid var(--color-border);display:flex;align-items:center;justify-content:flex-end;gap:14px;padding:0 20px;box-shadow:0 -1px 3px #0000000f;position:sticky;bottom:0}#export-progress{font-size:13px;color:var(--color-muted);min-width:60px;text-align:right}#btn-export{padding:9px 22px;background:var(--color-accent);color:#fff;border:none;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:background .15s}#btn-export:hover{background:var(--color-accent-hover)}#btn-export:disabled{opacity:.5;cursor:default}#btn-export-folder{padding:9px 22px;background:var(--color-accent);color:#fff;border:none;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:background .15s}#btn-export-folder:hover{background:var(--color-accent-hover)}#btn-export-folder:disabled{opacity:.5;cursor:default}#btn-export.btn-secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}#btn-export.btn-secondary:hover{background:var(--color-bg)}.grid-toolbar{justify-content:space-between;gap:10px}.btn-remove-all{padding:6px 14px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-muted);font-size:12px;cursor:pointer;transition:background .15s,border-color .15s,color .15s}.btn-remove-all:hover{border-color:var(--color-danger);color:var(--color-danger)}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);background:#1f2937;color:#f9fafb;padding:10px 14px 10px 16px;border-radius:var(--radius);box-shadow:0 8px 24px #0000002e;display:flex;align-items:center;gap:14px;font-size:13px;opacity:0;transition:opacity .2s ease,transform .2s ease;z-index:1000;max-width:calc(100vw - 24px)}.toast.toast-show{opacity:1;transform:translate(-50%)}.toast-message{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.toast-action{background:transparent;border:none;color:#93c5fd;font-weight:600;font-size:13px;cursor:pointer;padding:4px 6px;border-radius:4px;text-transform:uppercase;letter-spacing:.04em}.toast-action:hover{background:#ffffff14;color:#bfdbfe}@media(max-width:768px){.tool-row{flex-direction:column}#settings{width:100%;border-right:none;border-bottom:1px solid var(--color-border);overflow:visible;position:sticky;top:var(--header-height);z-index:5}.settings-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;padding:12px 16px;background:var(--color-surface);border:none;border-bottom:1px solid transparent;font:inherit;font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--color-muted);cursor:pointer}.settings-toggle-chevron{transition:transform .15s;color:var(--color-muted)}#settings.is-open .settings-toggle{border-bottom-color:var(--color-border)}#settings.is-open .settings-toggle-chevron{transform:rotate(180deg)}.settings-body{display:none;padding:12px 16px 16px;max-height:60vh;overflow-y:auto}#settings.is-open .settings-body{display:block}.tool-section{min-height:auto}#batch-grid{flex:none;overflow-y:visible;padding:16px}.drop-zone{min-height:240px}}