.tool-main{margin-top:-1px}.tool-main .container-page{padding-top:2.5rem}.tool-card{background:var(--color-surface-card);border:1px solid var(--color-border);border-radius:var(--radius-2xl);padding:2.5rem 1.75rem;box-shadow:var(--shadow-sm);margin-bottom:4rem}@media(max-width:640px){.tool-card{padding:1.5rem 1rem}}.upload-icon-large{font-size:3rem;display:block;margin-bottom:.75rem}.upload-zone h3{font-size:1.25rem;font-weight:700;margin-bottom:.25rem;color:var(--color-text-primary)}.upload-zone p{font-size:.9375rem;color:var(--color-text-muted)}.browse-link{color:var(--color-primary);font-weight:600;text-decoration:underline;text-underline-offset:2px}.paste-hint{margin-top:1rem;font-size:.75rem!important;color:var(--color-text-muted);opacity:.7}.paste-hint kbd{display:inline-block;padding:1px 6px;font-size:.6875rem;font-family:inherit;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-sm);margin:0 2px}.error-message{display:none;padding:14px 18px;border-radius:var(--radius-md);font-size:.875rem;font-weight:600;background:var(--color-error-light);color:var(--color-error);border:1px solid var(--color-error-border);margin-bottom:1.25rem;animation:fadeSlideIn .2s ease}.error-message.visible{display:block}.error-message.success{background:var(--color-success-light);color:var(--color-success);border-color:var(--color-success-border)}.mode-tabs{display:flex;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:4px;gap:4px;margin-top:1rem}.mode-tab{flex:1;padding:8px 12px;border-radius:var(--radius-md);border:none;background:transparent;font-family:var(--font-sans);font-size:.875rem;font-weight:500;color:var(--color-text-muted);cursor:pointer;transition:var(--transition-fast);text-align:center}.mode-tab:hover{color:var(--color-text-secondary)}.mode-tab.active{background:var(--color-surface-card);color:var(--color-text-primary);box-shadow:var(--shadow-xs);font-weight:600}.resize-panel{display:none;margin-top:1rem}.resize-panel.active{display:block}.dimension-row{display:flex;align-items:center;gap:.75rem}.dimension-group{flex:1}.dimension-group label{display:block;font-size:.8125rem;font-weight:500;color:var(--color-text-secondary);margin-bottom:.5rem}.dimension-input-wrap{position:relative}.dimension-input-wrap input{width:100%;padding:9px 40px 9px 12px;border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:.9375rem;font-family:var(--font-sans);color:var(--color-text-primary);background:var(--color-surface-card);transition:var(--transition-fast);font-weight:500}.dimension-input-wrap input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 4px var(--color-primary-glow)}.dimension-unit{position:absolute;right:10px;top:50%;transform:translateY(-50%);font-size:.75rem;color:var(--color-text-muted);font-weight:500;pointer-events:none}.lock-btn{width:36px;height:36px;border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-surface-card);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1rem;transition:var(--transition-fast);flex-shrink:0;margin-top:22px}.lock-btn:hover{border-color:var(--color-primary)}.lock-btn.locked{background:var(--color-primary-light);border-color:var(--color-primary)}.percent-display{text-align:center;font-size:2rem;font-weight:800;color:var(--color-primary);margin:.75rem 0;letter-spacing:-.03em}input[type=range]{width:100%;height:4px;border-radius:var(--radius-full);background:var(--color-border);outline:none;cursor:pointer;appearance:none;-webkit-appearance:none}input[type=range]::-webkit-slider-thumb{appearance:none;-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:var(--color-primary);cursor:pointer;box-shadow:0 2px 6px var(--color-primary-glow);border:2px solid white}input[type=range]::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--color-primary);cursor:pointer;border:2px solid white}.percent-presets{display:flex;gap:.5rem;justify-content:center;margin-top:.75rem;flex-wrap:wrap}.percent-preset{padding:4px 14px;border-radius:var(--radius-full);border:1px solid var(--color-border);background:var(--color-surface-card);font-size:.8125rem;font-weight:500;color:var(--color-text-secondary);cursor:pointer;transition:var(--transition-fast);font-family:var(--font-sans)}.percent-preset:hover{border-color:var(--color-primary);color:var(--color-primary)}.preset-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:.5rem}.output-format-row{display:flex;align-items:center;gap:.75rem;margin-top:1rem;padding:12px 14px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.output-format-row label{font-size:.875rem;font-weight:500;color:var(--color-text-secondary);white-space:nowrap}.output-format-row select{flex:1;padding:7px 28px 7px 10px;border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:.875rem;font-family:var(--font-sans);color:var(--color-text-primary);background:var(--color-surface-card);cursor:pointer;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center}.output-format-row select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 4px var(--color-primary-glow)}.tool-actions{display:none;justify-content:center;margin-bottom:1rem}.progress-area{display:none;flex-direction:column;align-items:center;gap:.75rem;padding:2rem;text-align:center;margin-top:1rem}.progress-area.visible{display:flex}.progress-text{font-size:.9375rem;font-weight:600;color:var(--color-text-secondary)}.progress-bar-track{width:100%;max-width:360px;height:6px;background:var(--color-border);border-radius:var(--radius-full);overflow:hidden}.progress-bar-fill{height:100%;width:0%;background:var(--color-primary-grad);border-radius:var(--radius-full);transition:width .2s ease}.success-area{display:none;flex-direction:column;align-items:center;gap:.5rem;padding:2.5rem 2rem;text-align:center;background:var(--color-success-light);border:1px solid var(--color-success-border);border-radius:var(--radius-xl);margin-top:1rem}.success-area.visible{display:flex}.success-area h3{font-size:1.5rem;font-weight:700}.success-file-info{font-size:.9375rem;color:var(--color-text-secondary);margin-bottom:.5rem}.success-actions{display:flex;gap:1rem;flex-wrap:wrap;justify-content:center;margin-top:.75rem}@media(max-width:640px){.dimension-row{flex-wrap:wrap}.lock-btn{margin-top:0}.success-actions{flex-direction:column;align-items:center}}