.tool-page{max-width:1100px;margin:0 auto;padding:32px 20px}.tool-page__title{font-size:22px;font-weight:700;color:var(--text-primary);margin-bottom:6px;text-align:center}.tool-page__desc{font-size:13px;color:var(--text-tertiary);margin-bottom:24px;text-align:center}.tool-upload{border:2px dashed var(--border-subtle);border-radius:14px;padding:48px 24px;text-align:center;cursor:pointer;transition:all .2s ease;background:var(--bg-secondary);margin-bottom:20px}.tool-upload:hover{border-color:#3b82f6;background:#3b82f60a}.tool-upload.drag-over{border-color:#3b82f6;background:#3b82f614}.tool-upload__icon{font-size:40px;margin-bottom:12px}.tool-upload__text{font-size:14px;color:var(--text-secondary);margin-bottom:6px}.tool-upload__hint{font-size:12px;color:var(--text-tertiary)}.tool-upload input[type=file]{display:none}.tool-preview{margin-bottom:20px}.tool-preview--compare{display:flex;gap:16px}.tool-preview__side{flex:1;min-width:0}.tool-preview__label{font-size:13px;color:var(--text-secondary);margin-bottom:8px;text-align:center}.tool-preview__canvas-wrap{position:relative;background:var(--bg-secondary);border-radius:12px;overflow:hidden;display:flex;align-items:center;justify-content:center;border:1px solid var(--border-subtle);min-height:200px;max-height:350px;width:100%}.tool-preview__canvas-wrap--clickable{cursor:pointer;transition:border-color .2s,box-shadow .2s}.tool-preview__canvas-wrap--clickable:hover{border-color:#3b82f6;box-shadow:0 0 0 3px #3b82f61a}.tool-preview__canvas-wrap canvas,.tool-preview__canvas-wrap img{max-width:100%;max-height:350px;display:block}.tool-preview__info{display:flex;gap:16px;margin-top:10px;font-size:12px;color:var(--text-tertiary)}.tool-settings{background:var(--bg-secondary);border-radius:12px;padding:20px;border:1px solid var(--border-subtle)}.tool-settings__title{font-size:15px;font-weight:600;color:var(--text-primary);margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--border-subtle)}.tool-row{display:flex;align-items:center;gap:12px;margin-bottom:16px}.tool-row:last-child{margin-bottom:0}.tool-label{font-size:13px;color:var(--text-secondary);min-width:70px;flex-shrink:0}.tool-slider{flex:1;min-width:0;-webkit-appearance:none;height:6px;border-radius:3px;background:var(--border-subtle);outline:none;position:relative}.tool-slider::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:#fff;border:2px solid #3b82f6;cursor:pointer;box-shadow:0 1px 3px #0000001a}.tool-slider::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:#fff;border:2px solid #3b82f6;cursor:pointer}.tool-value{font-size:14px;color:#3b82f6;min-width:45px;text-align:right;font-weight:600;flex-shrink:0}.slider-row{display:flex;align-items:center;gap:12px}.slider-value{font-size:14px;color:#3b82f6;min-width:50px;text-align:right;font-weight:600;flex-shrink:0}.tool-input{padding:6px 10px;border:1px solid var(--border-subtle);border-radius:8px;font-size:13px;background:var(--bg-primary);color:var(--text-primary);width:80px;text-align:center}.tool-input--small{width:60px;padding:6px 8px}.tool-unit{font-size:13px;color:var(--text-secondary);margin-left:4px}.tool-select{padding:6px 10px;border:1px solid var(--border-subtle);border-radius:8px;font-size:13px;background:var(--bg-primary);color:var(--text-primary)}.tool-btns{display:flex;gap:10px}.tool-btn{flex:1;padding:12px;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;border:none;transition:all 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toast-fadeOut{0%{opacity:1;transform:translate(-50%) translateY(0)}to{opacity:0;transform:translate(-50%) translateY(20px)}}.image-lightbox{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;z-index:2000}.image-lightbox__backdrop{position:absolute;inset:0;background:#000000d9;cursor:pointer}.image-lightbox__content{position:relative;max-width:90vw;max-height:90vh;display:flex;align-items:center;justify-content:center}.image-lightbox__img{max-width:90vw;max-height:90vh;-o-object-fit:contain;object-fit:contain;border-radius:8px;box-shadow:0 8px 32px #00000080}.image-lightbox__close{position:absolute;top:-40px;right:0;width:32px;height:32px;border-radius:50%;border:none;background:#fff3;color:#fff;font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background 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.2s;z-index:1}.lightbox__close:hover{background:#ffffff4d}@media(max-width:768px){#app{margin-left:0!important;width:100%!important;box-sizing:border-box}.app-layout{flex-direction:column}.sidebar{display:none!important}.main-content{margin-left:0!important;width:100%!important;padding:0!important;box-sizing:border-box}.tool-page{padding:16px 12px 40px;max-width:100%;box-sizing:border-box}.tool-page__header{margin-bottom:16px}.tool-page__title{font-size:20px}.tool-page__desc{font-size:13px}.tool-page__main{flex-direction:column;gap:16px}.tool-page__upload,.tool-page__preview{width:100%;min-height:200px}.upload-area{padding:24px 16px;min-height:180px}.upload-area__icon{font-size:36px}.upload-area__text{font-size:14px}.upload-area__hint{font-size:11px}.preview-area{min-height:200px;padding:16px}.preview-placeholder{font-size:13px}.tool-page__sidebar{width:100%;padding:16px}.tool-page__images{max-height:200px}.tool-page__actions{flex-direction:column;gap:12px}.tool-page__btn{width:100%;padding:14px 20px}.image-item{padding:8px}.image-item__preview{width:48px;height:48px}.image-item__info{font-size:12px}.image-item__remove,.image-item__download{width:24px;height:24px;font-size:12px}.tool-slider{margin:12px 0}.slider-value{font-size:12px;min-width:40px}.tool-slider input[type=range]{height:6px}.tool-slider input[type=range]::-webkit-slider-thumb{width:18px;height:18px}.tool-page__settings{gap:12px}.setting-row{flex-direction:column;gap:8px;align-items:stretch}.setting-label{font-size:13px}.format-options{flex-wrap:wrap;gap:8px}.format-btn{padding:8px 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