:root{--bg-primary: #f0f2f8;--bg-secondary: #ffffff;--bg-card: rgba(255,255,255,.6);--bg-card-solid: #ffffff;--bg-card-hover: rgba(255,255,255,.8);--text-primary: #1a1a2e;--text-secondary: #5a5f7a;--text-muted: #656b85;--accent: #6366f1;--accent-light: #818cf8;--accent-dark: #4f46e5;--accent-bg: rgba(99,102,241,.08);--accent-glow: rgba(99,102,241,.25);--accent-gradient: linear-gradient(135deg, var(--accent), #a855f7);--success: #10b981;--success-bg: #ecfdf5;--error: #ef4444;--error-bg: #fef2f2;--warning: #f59e0b;--warning-bg: #fffbeb;--info: #3b82f6;--info-bg: #eff6ff;--border: rgba(99,102,241,.12);--border-light: rgba(99,102,241,.06);--border-strong: rgba(99,102,241,.2);--shadow-sm: 0 1px 3px rgba(0,0,0,.04);--shadow: 0 4px 16px rgba(99,102,241,.08);--shadow-lg: 0 12px 32px rgba(99,102,241,.12);--shadow-xl: 0 24px 64px rgba(99,102,241,.16);--radius: 20px;--radius-sm: 12px;--radius-xs: 8px;--glass-blur: 20px;--glass-border: 1px solid rgba(255,255,255,.3);--transition: .3s cubic-bezier(.4, 0, .2, 1);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-slow: .5s cubic-bezier(.4, 0, .2, 1);--font-primary: "SUITE Variable", "Noto Sans JP", system-ui, -apple-system, sans-serif;--font-mono: "SF Mono", "Fira Code", "Cascadia Code", monospace;--gradient-mesh: radial-gradient(ellipse at 20% 0%, rgba(99,102,241,.12) 0%, transparent 50%), radial-gradient(ellipse at 80% 100%, rgba(168,85,247,.1) 0%, transparent 50%), radial-gradient(ellipse at 60% 30%, rgba(59,130,246,.08) 0%, transparent 50%)}[data-theme=dark]{--bg-primary: #0a0a1a;--bg-secondary: #141428;--bg-card: rgba(20,20,40,.65);--bg-card-solid: #181830;--bg-card-hover: rgba(25,25,50,.8);--text-primary: #eef0f6;--text-secondary: #9499b8;--text-muted: #8385a0;--accent-bg: rgba(99,102,241,.12);--accent-glow: rgba(99,102,241,.3);--border: rgba(99,102,241,.15);--border-light: rgba(99,102,241,.08);--border-strong: rgba(99,102,241,.25);--shadow-sm: 0 1px 3px rgba(0,0,0,.2);--shadow: 0 4px 16px rgba(0,0,0,.3);--shadow-lg: 0 12px 32px rgba(0,0,0,.4);--shadow-xl: 0 24px 64px rgba(0,0,0,.5);--glass-border: 1px solid rgba(255,255,255,.06);--gradient-mesh: radial-gradient(ellipse at 20% 0%, rgba(99,102,241,.15) 0%, transparent 50%), radial-gradient(ellipse at 80% 100%, rgba(168,85,247,.12) 0%, transparent 50%), radial-gradient(ellipse at 60% 30%, rgba(59,130,246,.1) 0%, transparent 50%);--success-bg: rgba(16,185,129,.1);--error-bg: rgba(239,68,68,.1);--warning-bg: rgba(245,158,11,.1);--info-bg: rgba(59,130,246,.1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-primary);background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.5;overflow-x:hidden;-webkit-font-smoothing:antialiased}body:before{content:"";position:fixed;inset:0;z-index:-1;background:var(--gradient-mesh);pointer-events:none}.header{position:sticky;top:0;z-index:100;background:var(--bg-card);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border-bottom:var(--glass-border);padding:.5rem 1.5rem}.header-inner{max-width:1400px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:1rem}.logo{display:flex;align-items:center;gap:.5rem;text-decoration:none;color:var(--text-primary)}.logo-icon{font-size:1.5rem}.logo-text{font-size:1.25rem;font-weight:700;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.logo-sub{font-size:.7rem;color:var(--text-muted);margin-left:.5rem}.canvas-tips{position:absolute;bottom:1rem;left:50%;transform:translate(-50%);width:min(88%,380px);height:2rem;display:flex;align-items:center;gap:.35rem;padding:0 .5rem 0 .75rem;border-radius:999px;background:var(--bg-card);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border);box-shadow:0 2px 12px #00000014;opacity:0;transition:opacity .5s ease,transform .4s cubic-bezier(.16,1,.3,1);pointer-events:none;z-index:5}.canvas-tips.active{opacity:1;pointer-events:auto}.canvas-tips-track{flex:1;height:100%;position:relative;overflow:hidden;mask-image:linear-gradient(90deg,#000 0%,#000 94%,transparent 100%);-webkit-mask-image:linear-gradient(90deg,#000 0%,#000 94%,transparent 100%)}.canvas-tips-item{position:absolute;inset:0;display:flex;align-items:center;gap:.4rem;font-size:.72rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transform:translateY(110%);opacity:0;transition:transform .5s cubic-bezier(.16,1,.3,1),opacity .35s ease}.canvas-tips-item.current{transform:translateY(0);opacity:1}.canvas-tips-item.exiting{transform:translateY(-110%);opacity:0}.canvas-tips-item .tip-icon{flex-shrink:0;color:var(--accent);opacity:.7}.canvas-tips-item .tip-icon svg{width:.8rem;height:.8rem}.canvas-tips-item .tip-text{font-size:.72rem;overflow:hidden;text-overflow:ellipsis}.canvas-tips-item .tip-link{flex-shrink:0;color:var(--accent);text-decoration:none;font-size:.7rem;font-weight:600;opacity:.7;transition:opacity .2s}.canvas-tips-item .tip-link:hover{opacity:1;text-decoration:underline}.canvas-tips-dismiss{flex-shrink:0;background:none;border:none;color:var(--text-muted);cursor:pointer;padding:.15rem;opacity:0;transition:opacity .25s;line-height:0}.canvas-tips:hover .canvas-tips-dismiss{opacity:.5}.canvas-tips-dismiss:hover{opacity:.9!important}.canvas-tips-dismiss svg{width:10px;height:10px}.header-actions{display:flex;align-items:center;gap:.5rem}.lang-switcher{position:relative}.lang-trigger{display:inline-flex;align-items:center;gap:.3rem;height:38px;padding:0 .6rem;background:var(--bg-card);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:20px;font-size:.75rem;font-weight:700;font-family:var(--font-mono);letter-spacing:.04em;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}.lang-trigger:hover,.lang-trigger.active{border-color:var(--accent);color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.lang-trigger .cc-icon{width:16px;height:16px}.lang-trigger-chevron{width:12px!important;height:12px!important;transition:transform .18s ease}.lang-trigger.active .lang-trigger-chevron{transform:rotate(180deg)}.lang-menu{position:absolute;top:calc(100% + 6px);right:0;min-width:150px;background:var(--bg-card-solid);backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-xl);padding:.35rem;z-index:300;opacity:0;transform:translateY(-6px) scale(.97);pointer-events:none;transition:opacity .18s ease,transform .18s ease}.lang-menu.open{opacity:1;transform:translateY(0) scale(1);pointer-events:auto}.lang-menu-item{display:flex;align-items:center;gap:.6rem;width:100%;padding:.5rem .75rem;border-radius:var(--radius-xs);font-size:.82rem;color:var(--text-secondary);text-decoration:none;cursor:pointer;transition:background var(--transition-fast),color var(--transition-fast)}.lang-menu-item:hover{background:var(--accent-bg);color:var(--accent)}.lang-menu-item.active{color:var(--accent);font-weight:600}.lang-menu-code{font-family:var(--font-mono);font-weight:700;font-size:.75rem;letter-spacing:.04em;min-width:1.6rem}.lang-menu-label{font-family:var(--font-primary);font-weight:400}.theme-toggle{background:var(--bg-card);backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:50%;width:38px;height:38px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.1rem;transition:all var(--transition);color:var(--text-secondary)}.theme-toggle:hover{border-color:var(--accent);color:var(--accent);transform:rotate(30deg);box-shadow:0 0 0 3px var(--accent-glow)}.card{background:var(--bg-card);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow);transition:all var(--transition)}.card:hover{box-shadow:var(--shadow-lg)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.6rem 1.25rem;border-radius:var(--radius-sm);font-family:var(--font-primary);font-size:.85rem;font-weight:600;cursor:pointer;border:1px solid var(--border);transition:all var(--transition);text-decoration:none;white-space:nowrap;user-select:none}.btn-primary{background:var(--accent-gradient);color:#fff;border-color:transparent;box-shadow:0 4px 12px #6366f14d}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px #6366f166}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:var(--bg-card);backdrop-filter:blur(10px);color:var(--text-primary);border-color:var(--border)}.btn-secondary:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-bg)}.btn-ghost{background:transparent;border-color:transparent;color:var(--text-secondary);padding:.4rem .75rem}.btn-ghost:hover{color:var(--accent);background:var(--accent-bg)}.btn-ghost.btn-active,.btn-ghost.btn-active:hover{color:var(--accent);background:var(--accent-bg);border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-glow)}.btn-icon{width:36px;height:36px;padding:0;border-radius:var(--radius-xs)}.btn:disabled{opacity:.4;cursor:not-allowed;pointer-events:none}.btn-danger{background:var(--error);color:#fff;border-color:transparent}.btn-danger:hover{background:#dc2626}.landing{display:flow-root}.landing-hero{max-width:800px;margin:3rem auto;padding:0 1.5rem;text-align:center}.drop-zone-title{font-size:2.5rem;font-weight:800;margin-bottom:.75rem;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.drop-zone{border:3px dashed var(--border-strong);border-radius:var(--radius);padding:4rem 2rem;text-align:center;cursor:pointer;transition:all var(--transition);background:var(--bg-card);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));position:relative;overflow:hidden}.drop-zone:hover,.drop-zone.drag-over{border-color:var(--accent);background:var(--accent-bg);box-shadow:0 0 0 4px var(--accent-glow)}.drop-zone-icon{font-size:3rem;margin-bottom:1rem;display:block}.drop-zone-hero{width:120px;height:120px;border-radius:50%;object-fit:cover;margin-bottom:1rem;box-shadow:var(--shadow);border:3px solid var(--border)}.drop-zone-text{font-size:1rem;color:var(--text-secondary);margin-bottom:.5rem}.drop-zone-hint{font-size:.8rem;color:var(--text-secondary)}.drop-zone-btn{margin-top:1rem}.drop-zone-optimize{display:inline-flex;align-items:center;gap:.35rem;margin-top:.75rem;padding:.4rem .75rem;background:none;border:none;color:var(--accent-dark);font-size:.85rem;cursor:pointer}.drop-zone-optimize:hover{text-decoration:underline}.drop-zone-optimize .cc-icon{width:14px;height:14px}.drop-zone-tagline{font-size:.92rem;font-weight:600;letter-spacing:.01em;color:var(--text-secondary);margin:-.25rem 0 1.5rem}.drop-zone-features{display:flex;flex-wrap:wrap;justify-content:center;gap:.4rem;margin-top:1.75rem;padding-top:1.25rem;border-top:1px solid var(--border-light)}.feature-chip{display:inline-flex;align-items:center;gap:.35rem;padding:.35rem .7rem;font-size:.74rem;font-weight:600;color:var(--text-secondary);background:var(--bg-card-hover);border:1px solid var(--border-light);border-radius:999px;transition:color .18s ease,border-color .18s ease,background .18s ease}.feature-chip:hover{color:var(--text-primary);border-color:var(--accent);background:var(--bg-card)}.feature-chip .cc-icon{width:13px;height:13px;color:var(--accent);opacity:.85}.landing-faq{max-width:1400px;margin:4rem auto 3rem;padding:0 1rem;text-align:left}.landing-faq__header{text-align:center;max-width:720px;margin:0 auto 2rem}.landing-faq__eyebrow{display:inline-block;font-size:.7rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:var(--accent-dark);padding:.3rem .75rem;background:#6366f114;border-radius:999px;margin-bottom:.85rem}[data-theme=dark] .landing-faq__eyebrow{color:var(--accent-light);background:#818cf824}.landing-faq__heading{font-size:1.6rem;font-weight:800;letter-spacing:-.02em;margin:0;color:var(--text-primary)}.landing-faq__list{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,460px),1fr));grid-auto-flow:row dense;align-items:start;gap:.75rem 1.25rem}.landing-faq__item{background:var(--bg-card);border:1px solid var(--border-light);border-radius:14px;overflow:hidden;transition:transform .22s cubic-bezier(.4,0,.2,1),border-color .22s ease,box-shadow .22s ease}.landing-faq__item:hover{transform:translateY(-1px);border-color:#6366f159;box-shadow:0 4px 14px #0000000a}.landing-faq__item[open]{border-color:var(--accent);box-shadow:0 6px 22px #6366f11a}.landing-faq__item summary{display:flex;align-items:center;gap:1rem;padding:1.1rem 1.35rem;cursor:pointer;list-style:none;user-select:none}.landing-faq__item summary::-webkit-details-marker{display:none}.landing-faq__q{flex:1;font-size:.97rem;font-weight:700;color:var(--text-primary);line-height:1.5}.landing-faq__toggle{flex-shrink:0;position:relative;width:28px;height:28px;border-radius:50%;background:#6366f114;transition:background .22s ease}.landing-faq__toggle:before,.landing-faq__toggle:after{content:"";position:absolute;top:50%;left:50%;width:12px;height:2px;background:var(--accent);border-radius:2px;transform:translate(-50%,-50%);transition:transform .28s cubic-bezier(.4,0,.2,1),background .22s ease}.landing-faq__toggle:after{transform:translate(-50%,-50%) rotate(90deg)}.landing-faq__item[open] .landing-faq__toggle{background:var(--accent)}.landing-faq__item[open] .landing-faq__toggle:before,.landing-faq__item[open] .landing-faq__toggle:after{background:#fff}.landing-faq__item[open] .landing-faq__toggle:after{transform:translate(-50%,-50%) rotate(0)}.landing-faq__a{padding:0 1.35rem 1.2rem}.landing-faq__a p{margin:0;font-size:.89rem;line-height:1.72;color:var(--text-secondary)}.landing-footer{max-width:1400px;margin:0 auto 3rem;padding:0 1rem;text-align:center;font-size:.8rem;color:var(--text-secondary)}.landing-footer p{margin:0;letter-spacing:.01em}.noscript-banner{position:sticky;top:0;z-index:10000;padding:.85rem 1rem;text-align:center;font-size:.9rem;font-weight:600;color:#78350f;background:#fef3c7;border-bottom:1px solid #fbbf24;box-shadow:0 2px 8px #0000000f}[data-theme=dark] .noscript-banner{color:#fde68a;background:#422006;border-bottom-color:#92400e}@media(max-width:640px){.drop-zone-tagline{font-size:.85rem;margin-bottom:1.25rem}.drop-zone-features{gap:.3rem;margin-top:1.5rem}.feature-chip{padding:.3rem .6rem;font-size:.7rem}.landing-faq{margin:2.5rem auto 2rem;padding:0 .5rem}.landing-faq__list{gap:.5rem}.landing-faq__header{margin-bottom:1.75rem}.landing-faq__heading{font-size:1.35rem}.landing-faq__item summary{padding:.95rem 1.05rem;gap:.75rem}.landing-faq__q{font-size:.92rem}.landing-faq__a{padding:0 1.05rem 1.05rem}.landing-faq__a p{font-size:.86rem}}.global-drop-overlay{position:fixed;inset:0;z-index:9998;background:#6366f10f;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);box-shadow:inset 0 0 0 3px var(--accent),inset 0 0 40px #6366f11f;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.25rem;pointer-events:none;opacity:0;transition:opacity .25s ease}.global-drop-overlay.active{opacity:1;pointer-events:auto}.global-drop-overlay .drop-zone-icon{width:3rem;height:3rem;color:var(--accent);opacity:.7}.global-drop-overlay p{font-size:1.05rem;font-weight:600;color:var(--accent);opacity:.85}.global-drop-overlay .drop-zone-sub{color:var(--text-secondary);font-weight:400;font-size:.8rem;opacity:.7}.file-list-section{max-width:800px;margin:0 auto 1.5rem;padding:0 1.5rem}.file-list{list-style:none;display:flex;flex-direction:column;gap:.4rem}.file-item{display:flex;align-items:center;gap:.75rem;padding:.6rem 1rem;background:var(--bg-card);backdrop-filter:blur(10px);border:1px solid var(--border-light);border-radius:var(--radius-xs);cursor:pointer;transition:all var(--transition-fast);user-select:none}.file-item:hover{border-color:var(--accent);background:var(--accent-bg)}.file-item.active{border-color:var(--accent);background:var(--accent-bg);box-shadow:0 0 0 2px var(--accent-glow)}.file-item.dragging{opacity:.4}.file-item.drag-over-above{box-shadow:0 -2px 0 0 var(--accent)}.file-item.drag-over-below{box-shadow:0 2px 0 0 var(--accent)}.file-drag-handle{cursor:grab;font-size:1.1rem;color:var(--text-muted);flex-shrink:0;user-select:none}.file-drag-handle:active{cursor:grabbing}.file-thumb{width:40px;height:40px;border-radius:6px;object-fit:cover;flex-shrink:0;background:var(--bg-card-hover)}.file-info{flex:1;min-width:0}.file-name{font-size:.85rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-meta{font-size:.7rem;color:var(--text-muted)}.file-remove{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:1rem;padding:.25rem;border-radius:50%;transition:all var(--transition-fast);flex-shrink:0}.file-remove:hover{color:var(--error);background:var(--error-bg)}.workspace{display:none;max-width:1400px;margin:0 auto;padding:0 1rem 2rem}.workspace.active{display:flex;flex-direction:column}.toolbar{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;margin-bottom:1rem;padding:.75rem 1rem;background:var(--bg-card);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border);border-radius:var(--radius-sm);position:relative;z-index:10}.toolbar-group{display:flex;align-items:center;gap:.25rem}.toolbar-separator{width:1px;height:24px;background:var(--border);margin:0 .5rem}.toolbar-label{font-size:.75rem;color:var(--text-muted);font-weight:600;margin-right:.25rem}.preset-selector{position:relative}.preset-btn{min-width:120px;max-width:200px;justify-content:space-between;gap:.25rem}.preset-btn>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.preset-dropdown{position:absolute;top:calc(100% + 4px);left:0;width:320px;max-height:0;overflow:hidden;background:var(--bg-card-solid);backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-xl);z-index:200;display:none;padding:0;transition:max-height .25s ease,padding .25s ease}.preset-dropdown.open{display:block;max-height:480px;padding:.5rem;animation:fadeSlideDown .2s ease}.preset-search{width:100%;padding:.55rem .75rem;border:1px solid var(--border);border-radius:var(--radius-xs);background:var(--bg-primary);color:var(--text-primary);font-family:var(--font-primary);font-size:.82rem;margin-bottom:.4rem;outline:none;transition:border-color var(--transition-fast);position:sticky;top:0;z-index:1}.preset-search:focus{border-color:var(--accent)}.preset-list{list-style:none;max-height:400px;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin}.preset-group-header{font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);padding:.6rem .75rem .25rem;position:sticky;top:0;background:var(--bg-card-solid);z-index:1;user-select:none}.preset-item{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.5rem .75rem;border-radius:var(--radius-xs);cursor:pointer;transition:background var(--transition-fast),color var(--transition-fast);font-size:.82rem;outline:none}.preset-item:hover,.preset-item.focused{background:var(--accent-bg);color:var(--accent)}.preset-item.selected{background:var(--accent-bg);color:var(--accent);font-weight:600}.preset-item--free{border-bottom:1px solid var(--border);margin-bottom:.25rem;border-radius:var(--radius-xs) var(--radius-xs) 0 0}.preset-item-name{display:flex;align-items:center;gap:.35rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.preset-item-meta{display:flex;align-items:center;gap:.4rem;flex-shrink:0;font-size:.7rem;color:var(--text-muted);font-family:var(--font-mono)}.preset-item-screen{opacity:.7}.preset-item-res{white-space:nowrap}.preset-item-color{display:inline-block;width:7px;height:7px;border-radius:50%;flex-shrink:0}.preset-item-color.color{background:var(--accent-gradient)}.preset-item-color.bw{background:var(--text-muted);opacity:.5}.preset-category{list-style:none}.preset-category-header{display:flex;align-items:center;gap:.4rem;padding:.5rem .75rem;cursor:pointer;user-select:none;border-radius:var(--radius-xs);transition:background var(--transition-fast);font-size:.82rem;font-weight:600;color:var(--text-primary)}.preset-category-header:hover{background:var(--accent-bg)}.preset-category-header[aria-expanded=true]{color:var(--accent);background:var(--accent-bg)}.preset-category-icon{flex-shrink:0;width:16px;height:16px;opacity:.7}.preset-category-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.preset-category-count{font-size:.68rem;font-weight:600;color:var(--text-muted);background:var(--bg-primary);padding:.1rem .4rem;border-radius:10px;flex-shrink:0;font-family:var(--font-mono)}.preset-category-chevron{flex-shrink:0;width:14px;height:14px;color:var(--text-muted);transition:transform var(--transition-fast);display:flex;align-items:center}.preset-category-chevron svg{width:14px;height:14px}.preset-category-header[aria-expanded=true] .preset-category-chevron{transform:rotate(180deg)}.preset-category-body{max-height:0;overflow:hidden;transition:max-height .25s ease}.preset-category-body.expanded{max-height:380px;overflow-y:auto;scrollbar-width:thin}.preset-item-badge{display:inline-block;font-size:.6rem;font-weight:600;padding:.1rem .35rem;border-radius:4px;background:var(--accent-bg);color:var(--accent);white-space:nowrap;flex-shrink:0}.preset-item-panel{font-size:.65rem;color:var(--text-muted);white-space:nowrap;opacity:.8}.preset-no-results{text-align:center;padding:1.5rem .75rem;font-size:.82rem;color:var(--text-muted);list-style:none}.editor-layout{display:grid;grid-template-columns:1fr 320px;gap:1rem;align-items:start}.canvas-wrapper{background:var(--bg-card);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;position:sticky;top:60px;height:calc(100vh - 200px);min-height:400px}.canvas-wrapper canvas{display:block;position:absolute;inset:0;width:100%;height:100%;touch-action:none;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}.canvas-zoom-info{position:absolute;bottom:.75rem;left:.75rem;padding:.3rem .6rem;background:#0009;color:#fff;font-size:.7rem;font-family:var(--font-mono);border-radius:6px;pointer-events:none}.side-panel{display:flex;flex-direction:column;gap:.75rem}.panel-section{background:var(--bg-card);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;transition:border-color .3s,box-shadow .3s}.panel-section.panel-attention{animation:panelAttention .8s cubic-bezier(.22,1,.36,1)}@keyframes panelAttention{0%{border-color:var(--border);box-shadow:var(--shadow)}30%{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-glow),var(--shadow-lg)}to{border-color:var(--border);box-shadow:var(--shadow)}}.panel-header{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1rem;cursor:pointer;user-select:none;font-size:.85rem;font-weight:700;color:var(--text-primary);transition:background var(--transition-fast)}.panel-header:hover{background:var(--accent-bg)}.panel-header-icon{transition:transform var(--transition-fast);font-size:.75rem;color:var(--text-muted)}.panel-section.collapsed .panel-header-icon{transform:rotate(-90deg)}.panel-body{padding:.75rem 1rem;border-top:1px solid var(--border-light)}.panel-section.collapsed .panel-body{display:none}.preview-section{text-align:center}.preview-canvas-wrap{background:repeating-conic-gradient(#e5e5e5 0% 25%,#fff 0% 50%) 50% / 16px 16px;border-radius:var(--radius-xs);overflow:hidden;display:flex;align-items:center;justify-content:center;min-height:150px;margin-bottom:.5rem}[data-theme=dark] .preview-canvas-wrap{background:repeating-conic-gradient(#2a2a3a 0% 25%,#1a1a2a 0% 50%) 50% / 16px 16px}.preview-canvas-wrap canvas,.preview-canvas-wrap img{max-width:100%;max-height:200px;object-fit:contain}.preview-info{font-size:.7rem;color:var(--text-muted);font-family:var(--font-mono)}.filter-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.4rem}.filter-chip{padding:.4rem .3rem;border:1px solid var(--border-light);border-radius:var(--radius-xs);font-size:.7rem;text-align:center;cursor:pointer;transition:all var(--transition-fast);background:transparent;color:var(--text-secondary);font-family:var(--font-primary)}.filter-chip:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-bg)}.filter-chip.active{border-color:var(--accent);background:var(--accent-bg);color:var(--accent);font-weight:600}.filter-category-label{font-size:.7rem;color:var(--text-muted);font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin:.5rem 0 .25rem}.filter-category-label:first-child{margin-top:0}.slider-group{margin-bottom:.6rem}.slider-label{display:flex;justify-content:space-between;font-size:.75rem;color:var(--text-secondary);margin-bottom:.25rem}.slider-value{font-family:var(--font-mono);color:var(--accent);font-weight:600}input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:3px;background:var(--border);outline:none;cursor:pointer}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;background:var(--accent);box-shadow:0 2px 6px #6366f14d;cursor:pointer;transition:transform var(--transition-fast)}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.2)}input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--accent);border:none;box-shadow:0 2px 6px #6366f14d;cursor:pointer}#qualitySliderGroup{position:relative}.quality-marker{position:absolute;bottom:0;left:var(--quality-marker, 92%);width:2px;height:6px;background:var(--text-warning, #f59e0b);border-radius:1px;pointer-events:none;transition:left .3s ease,opacity .3s ease;z-index:2}.quality-marker:before{content:attr(data-label);position:absolute;bottom:10px;left:50%;transform:translate(-50%);font-size:.6rem;color:var(--text-warning, #f59e0b);white-space:nowrap;font-weight:600}.quality-marker.hidden{display:none}input[type=range]:disabled{opacity:.35;cursor:not-allowed}input[type=range]:disabled::-webkit-slider-thumb{background:var(--text-muted);box-shadow:none;cursor:not-allowed}input[type=range]:disabled::-moz-range-thumb{background:var(--text-muted);box-shadow:none;cursor:not-allowed}.slider-group.quality-locked .slider-value{color:var(--text-muted)}.slider-group.quality-locked .quality-marker{display:none}.tool-grid{display:flex;justify-content:space-between;align-items:center}.tool-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border-light);border-radius:var(--radius-xs);cursor:pointer;transition:all var(--transition-fast);background:transparent;color:var(--text-secondary)}.tool-btn .cc-icon{width:18px;height:18px;transition:transform var(--transition-fast)}.tool-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-bg)}.tool-btn.active{border-color:var(--accent);background:var(--accent-bg);color:var(--accent);box-shadow:0 0 0 2px var(--accent-glow)}.tool-btn.active .cc-icon{transform:scale(1.1)}.tool-options{max-height:0;opacity:0;overflow:hidden;border-top:1px solid transparent;transition:max-height .35s cubic-bezier(.4,0,.2,1),opacity .25s ease,padding .35s ease,margin .35s ease,border-color .25s ease}.tool-options.tool-options--active{max-height:420px;opacity:1;padding-top:.75rem;margin-top:.5rem;border-top-color:var(--border-light)}.tool-option-row{display:flex;align-items:center;gap:.5rem;margin-bottom:.5rem;font-size:.8rem}.tool-option-row>label:first-child{flex-shrink:0;width:52px;color:var(--text-muted);font-size:.75rem}.tool-apply-btn{width:100%;margin-top:.5rem}.tool-option-value{flex-shrink:0;min-width:28px;text-align:right;font-size:.7rem;font-family:var(--font-mono);color:var(--accent);font-weight:600}.tool-toggle{position:relative;width:36px;height:20px;flex-shrink:0}.tool-toggle input{opacity:0;width:0;height:0;position:absolute}.tool-toggle-track{position:absolute;inset:0;background:var(--border);border-radius:10px;cursor:pointer;transition:background .25s ease}.tool-toggle-track:after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;background:#fff;border-radius:50%;transition:transform .25s cubic-bezier(.4,0,.2,1);box-shadow:0 1px 3px #00000026}.tool-toggle input:checked+.tool-toggle-track{background:var(--accent)}.tool-toggle input:checked+.tool-toggle-track:after{transform:translate(16px)}.tool-option-row input[type=color]{-webkit-appearance:none;appearance:none;width:28px;height:28px;border:2px solid var(--border);border-radius:6px;cursor:pointer;padding:0;background:none;transition:border-color var(--transition-fast)}.tool-option-row input[type=color]:hover{border-color:var(--accent)}.tool-option-row input[type=color]::-webkit-color-swatch-wrapper{padding:2px}.tool-option-row input[type=color]::-webkit-color-swatch{border-radius:3px;border:none}.tool-option-row input[type=text],.tool-option-row input[type=number],.tool-option-row select{flex:1;min-width:0;padding:.35rem .5rem;border:1px solid var(--border);border-radius:6px;background:var(--bg-primary);color:var(--text-primary);font-family:var(--font-primary);font-size:.8rem;outline:none;transition:border-color var(--transition-fast);-webkit-appearance:none;appearance:none}.tool-option-row select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%235a5f7a'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .5rem center;background-size:10px 6px;padding-right:1.5rem}[data-theme=dark] .tool-option-row select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%239499b8'/%3E%3C/svg%3E")}.tool-option-row input:focus,.tool-option-row select:focus{border-color:var(--accent)}.palette-display{display:flex;justify-content:space-between}.palette-swatch{display:flex;flex-direction:column;align-items:center;gap:.25rem;cursor:pointer;transition:transform var(--transition-fast)}.palette-swatch-color{width:36px;height:36px;border-radius:var(--radius-xs);border:2px solid transparent;transition:border-color var(--transition-fast)}.palette-swatch:hover{transform:scale(1.1);z-index:1}.palette-swatch:hover .palette-swatch-color{border-color:var(--text-primary)}.palette-swatch-hex{font-size:.6rem;font-family:var(--font-mono);color:var(--text-muted);white-space:nowrap}.bottom-bar{display:flex;align-items:center;justify-content:space-between;gap:.5rem;margin-top:1rem;padding:.75rem 1rem;background:var(--bg-card);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border);border-radius:var(--radius-sm)}.bottom-bar-left,.bottom-bar-right{display:flex;align-items:center;gap:.5rem}.progress-bar{width:100%;height:4px;background:var(--border);border-radius:2px;overflow:hidden;margin:.5rem 0}.progress-fill{height:100%;background:var(--accent-gradient);border-radius:2px;transition:width .3s ease;width:0%}.toast-container{position:fixed;top:1rem;right:1rem;z-index:9999;display:flex;flex-direction:column;gap:.5rem;pointer-events:none}.toast{pointer-events:auto;padding:.8rem 1.25rem;border-radius:50px;font-size:.85rem;font-weight:600;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:.5rem;animation:toastSlideUp .4s cubic-bezier(.34,1.56,.64,1) forwards;background:var(--bg-card-solid);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border);color:var(--text-primary);max-width:380px;position:relative;overflow:hidden}.toast.removing{animation:toastSlideOut .3s ease forwards}.toast-progress{position:absolute;bottom:0;left:0;height:3px;border-radius:0 0 50px 50px;animation:toastProgress linear forwards}.toast-success .toast-progress{background:var(--success)}.toast-error .toast-progress{background:var(--error)}.toast-info .toast-progress{background:var(--info)}.toast-warning .toast-progress{background:var(--warning)}.modal-overlay{position:fixed;inset:0;z-index:500;background:#0006;backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;padding:2rem}.modal-overlay.active{display:flex}.modal{background:var(--bg-card-solid);border:1px solid var(--border);border-radius:var(--radius);padding:2rem;max-width:500px;width:100%;box-shadow:var(--shadow-xl);animation:fadeSlideDown .3s ease}.modal-title{font-size:1.15rem;font-weight:700;margin-bottom:1rem}.modal-body{margin-bottom:1.5rem}.modal-footer{display:flex;justify-content:flex-end;gap:.5rem}.format-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem;margin-bottom:1rem}.format-option{padding:.6rem .5rem;text-align:center;border:1px solid var(--border);border-radius:var(--radius-xs);cursor:pointer;transition:all var(--transition-fast);font-size:.85rem;font-weight:600;background:transparent;color:var(--text-secondary);font-family:var(--font-primary)}.format-option:hover{border-color:var(--accent);color:var(--accent)}.format-option.active{border-color:var(--accent);background:var(--accent-bg);color:var(--accent)}.format-option:disabled{opacity:.35;cursor:not-allowed;pointer-events:none}.orientation-toggle{display:flex;border:1px solid var(--border);border-radius:var(--radius-xs);overflow:hidden}.orientation-toggle button{padding:.4rem .75rem;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;font-family:var(--font-primary);font-size:.8rem;transition:all var(--transition-fast)}.orientation-toggle button.active{background:var(--accent-bg);color:var(--accent);font-weight:600}.orientation-toggle button:hover:not(.active){background:var(--bg-card-hover)}.cc-tooltip{position:fixed;padding:6px 14px;background:var(--bg-card-solid);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);color:var(--text-primary);font-family:var(--font-primary);font-size:.75rem;white-space:nowrap;border-radius:8px;border:1px solid var(--border);box-shadow:var(--shadow-lg);pointer-events:none;z-index:9000;opacity:0;transform:scale(.95);transition:opacity .15s,transform .15s}.cc-tooltip.visible{opacity:1;transform:scale(1)}.ai-btn{width:100%;margin-bottom:.5rem;transition:opacity .2s,filter .2s}.ai-btn.ai-busy{opacity:.4;pointer-events:none;filter:grayscale(.6)}.ai-btn:disabled{cursor:not-allowed}.ai-tool-group{margin-bottom:.5rem}.ai-tool-group .ai-btn{margin-bottom:0}.ai-tool-group .ai-btn.ai-selected{border-color:var(--accent);background:var(--accent-bg)}.ai-tool-options{max-height:0;overflow:hidden;opacity:0;transition:max-height .3s cubic-bezier(.4,0,.2,1),opacity .25s ease,margin .3s ease,padding .3s ease;padding:0 .625rem;margin-top:0;border-radius:var(--radius-sm);background:var(--bg-card);border:1px solid transparent}.ai-tool-options.ai-tool-options--open{max-height:200px;opacity:1;padding:.5rem .625rem;margin-top:.375rem;border-color:var(--border-light)}.ai-tool-options .tool-option-row{margin-bottom:.375rem}.ai-tool-options .tool-option-row:last-child{margin-bottom:0}.ai-loading{padding:.75rem 0}.ai-loading-header{display:flex;align-items:center;gap:.5rem;padding:0 .25rem;margin-bottom:.5rem}.ai-loading-spinner{width:16px;height:16px;flex-shrink:0;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}.ai-loading-text{flex:1;font-size:.78rem;font-weight:500;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ai-elapsed{font-size:.72rem;color:var(--text-muted);font-variant-numeric:tabular-nums;flex-shrink:0}.ai-progress-bar{width:100%;height:3px;background:var(--border);border-radius:2px;overflow:hidden;margin-bottom:.5rem}.ai-progress-fill{height:100%;background:var(--accent);width:0%;transition:width .4s ease-out;border-radius:2px}.ai-step-log{max-height:120px;overflow-y:auto;padding:0 .25rem;scrollbar-width:thin}.ai-step{display:flex;align-items:flex-start;gap:.4rem;font-size:.72rem;line-height:1.4;padding:.15rem 0;color:var(--text-muted);animation:aiStepIn .25s ease-out}.ai-step-dot{width:6px;height:6px;flex-shrink:0;border-radius:50%;margin-top:.3em;background:var(--accent);opacity:.6}.ai-step--done .ai-step-dot{background:var(--success, #22c55e);opacity:1}.ai-step-text{flex:1}.ai-step-time{flex-shrink:0;font-variant-numeric:tabular-nums;opacity:.6}@keyframes aiStepIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.ai-unavailable{text-align:center;padding:1rem;font-size:.8rem;color:var(--text-muted)}.composite-options{display:flex;gap:.5rem;flex-wrap:wrap}.batch-progress{padding:1rem}.batch-item{display:flex;align-items:center;gap:.5rem;font-size:.8rem;margin-bottom:.4rem}.batch-item-status{width:18px;text-align:center}@keyframes toastSlideUp{0%{opacity:0;transform:translateY(20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes toastSlideOut{0%{opacity:1;transform:translateY(0) scale(1)}to{opacity:0;transform:translateY(-10px) scale(.95)}}@keyframes toastProgress{0%{width:100%}to{width:0%}}@keyframes fadeSlideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.02)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--accent)}::selection{background:var(--accent-bg);color:var(--accent)}.hidden{display:none!important}@media(max-width:900px){.editor-layout{grid-template-columns:1fr}.canvas-wrapper{position:relative;top:auto;height:50vh;min-height:300px}}@media(max-width:768px){.header-inner{padding:.5rem 0}.logo-sub,.canvas-tips{display:none}.landing-hero{margin:1.5rem auto;padding:0 1rem}.drop-zone-title{font-size:1.75rem}.drop-zone{padding:2.5rem 1rem}.drop-zone-features{gap:.35rem}.toolbar{padding:.4rem .5rem;gap:.2rem;flex-wrap:nowrap;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:none;-ms-overflow-style:none}.toolbar::-webkit-scrollbar{display:none}.toolbar-scroll-arrow{position:sticky;z-index:2;flex:0 0 24px;align-self:stretch;display:flex;align-items:center;justify-content:center;pointer-events:none;opacity:0;transition:opacity .25s ease}.toolbar-scroll-arrow--left{left:0;margin-right:-24px;background:linear-gradient(to right,var(--bg-card) 50%,transparent)}.toolbar-scroll-arrow--right{right:0;margin-left:-24px;background:linear-gradient(to left,var(--bg-card) 50%,transparent)}.toolbar-scroll-arrow svg{width:12px;height:12px;stroke:var(--text-muted);stroke-width:2.5;fill:none;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.toolbar-scroll-arrow.is-visible{opacity:1}.toolbar-label{display:none}.toolbar .btn-ghost>span[data-i18n]{display:none}.toolbar-separator{margin:0 .15rem;height:18px;flex-shrink:0}.toolbar [style*="flex:1"]{flex:0 0 auto!important;width:.25rem}.toolbar-group{flex-shrink:0}.preset-btn{min-width:100px;max-width:160px;font-size:.78rem}.preset-dropdown{max-width:none}.bottom-bar{flex-direction:column;gap:.75rem}.cc-tooltip{display:none}.format-grid,.filter-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:480px){.header-inner{padding:.5rem .25rem}.logo-text{font-size:1rem}.drop-zone-title{font-size:1.5rem}.file-list-section{padding:0 .75rem}.workspace{padding:0 .5rem 1rem}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.feedback-trigger{background:var(--bg-card);backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:50%;width:38px;height:38px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.1rem;transition:all var(--transition);color:var(--text-secondary)}.feedback-trigger:hover{border-color:var(--accent);color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.more-menu-wrapper{position:relative}.more-menu-btn{background:var(--bg-card);backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:50%;width:38px;height:38px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.1rem;transition:all var(--transition);color:var(--text-secondary)}.more-menu-btn:hover,.more-menu-btn.active{border-color:var(--accent);color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.more-menu{position:absolute;top:calc(100% + 6px);right:0;min-width:180px;background:var(--bg-card-solid);backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-xl);padding:.35rem;z-index:300;opacity:0;transform:translateY(-6px) scale(.97);pointer-events:none;transition:opacity .18s ease,transform .18s ease}.more-menu.open{opacity:1;transform:translateY(0) scale(1);pointer-events:auto}.more-menu-item{display:flex;align-items:center;gap:.6rem;width:100%;padding:.55rem .75rem;border-radius:var(--radius-xs);font-size:.82rem;color:var(--text-secondary);background:none;border:none;cursor:pointer;text-decoration:none;font-family:var(--font-primary);transition:background var(--transition-fast),color var(--transition-fast)}.more-menu-item:hover{background:var(--accent-bg);color:var(--accent)}.feedback-overlay{position:fixed;inset:0;z-index:600;background:#0006;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:none;align-items:center;justify-content:center;padding:1.5rem}.feedback-overlay.active{display:flex;animation:fadeIn .2s ease}.feedback-modal{background:var(--bg-card-solid);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;max-width:420px;width:100%;box-shadow:var(--shadow-xl);animation:fadeSlideDown .3s ease}.feedback-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}.feedback-title{font-size:1.1rem;font-weight:700}.feedback-close{background:none;border:none;color:var(--text-muted);font-size:1.2rem;cursor:pointer;padding:.25rem;border-radius:50%;width:32px;height:32px;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.feedback-close:hover{color:var(--error);background:var(--error-bg)}.feedback-categories{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:.75rem}.feedback-cat-chip{padding:.4rem .75rem;border:1px solid var(--border);border-radius:50px;font-size:.8rem;cursor:pointer;transition:all var(--transition-fast);background:var(--bg-card);color:var(--text-secondary);font-family:var(--font-primary);white-space:nowrap}.feedback-cat-chip:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-bg)}.feedback-cat-chip.active{border-color:var(--accent);background:var(--accent-bg);color:var(--accent);font-weight:600;box-shadow:0 0 0 2px var(--accent-glow)}.feedback-context{font-size:.78rem;color:var(--text-muted);padding:.5rem .75rem;border-left:3px solid var(--accent);background:var(--accent-bg);border-radius:0 var(--radius-xs) var(--radius-xs) 0;margin-bottom:.75rem}.feedback-textarea{width:100%;padding:.75rem;border:1px solid var(--border);border-radius:var(--radius-xs);background:var(--bg-primary);color:var(--text-primary);font-family:var(--font-primary);font-size:.85rem;resize:vertical;outline:none;transition:border-color var(--transition-fast);min-height:80px}.feedback-textarea:focus{border-color:var(--accent)}.feedback-char-count{font-size:.7rem;color:var(--text-muted);text-align:right;margin-top:.25rem;margin-bottom:.75rem;font-family:var(--font-mono)}.feedback-submit{width:100%;display:flex;align-items:center;justify-content:center;gap:.5rem;padding:.7rem 1.25rem;border-radius:var(--radius-sm);font-family:var(--font-primary);font-size:.85rem;font-weight:600;cursor:pointer;border:none;background:var(--accent-gradient);color:#fff;box-shadow:0 4px 12px #6366f14d;transition:all var(--transition)}.feedback-submit:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px #6366f166}.feedback-submit:disabled{opacity:.4;cursor:not-allowed;transform:none}.optimize-section{margin-top:.75rem;padding-top:.75rem;border-top:1px solid var(--border)}.optimize-header{display:flex;align-items:center}.optimize-toggle{display:flex;align-items:center;gap:.5rem;font-size:.85rem;font-weight:600;cursor:pointer;width:100%;user-select:none}.optimize-toggle .cc-icon{width:16px;height:16px;color:var(--accent)}.optimize-toggle-switch{margin-left:auto;position:relative;width:44px;height:24px;flex-shrink:0}.optimize-toggle-switch input{opacity:0;width:0;height:0;position:absolute}.optimize-toggle-track{position:absolute;inset:0;background:var(--border);border-radius:12px;transition:background .25s ease;cursor:pointer}.optimize-toggle-track:after{content:"";position:absolute;top:2px;left:2px;width:20px;height:20px;background:#fff;border-radius:50%;transition:transform .25s cubic-bezier(.4,0,.2,1);box-shadow:0 1px 3px #0003}.optimize-toggle-switch input:checked+.optimize-toggle-track{background:var(--accent)}.optimize-toggle-switch input:checked+.optimize-toggle-track:after{transform:translate(20px)}.optimize-savings-badge{display:inline-flex;align-items:center;padding:.15rem .5rem;font-size:.7rem;font-weight:700;color:#fff;background:var(--success);border-radius:999px;white-space:nowrap}.optimize-savings-badge.pop{animation:optimizePop .4s cubic-bezier(.34,1.56,.64,1)}@keyframes optimizePop{0%{transform:scale(.5);opacity:0}60%{transform:scale(1.15)}to{transform:scale(1);opacity:1}}.optimize-savings-badge.increase{background:var(--warning)}.optimize-hint{display:block;font-size:.75rem;color:var(--text-secondary);line-height:1.4}.optimize-hint:empty{display:none}.optimize-auto-info:has(.optimize-hint:empty){display:none}.optimize-body{margin-top:.75rem;display:flex;flex-direction:column;gap:.75rem}.optimize-size-preview{background:var(--bg-card);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius-sm, 8px);padding:.75rem}.optimize-size-row{display:flex;justify-content:space-between;align-items:center;font-size:.8rem}.optimize-size-label{color:var(--text-muted)}.optimize-size-label--accent{color:var(--accent);font-weight:600}.optimize-size-value{font-weight:600;font-variant-numeric:tabular-nums}.optimize-size-value--accent{color:var(--accent)}.optimize-size-bar-wrap{height:6px;background:var(--bg-primary);border-radius:3px;margin:.5rem 0;overflow:hidden}.optimize-size-bar{height:100%;background:var(--accent-gradient);border-radius:3px;transition:width .6s cubic-bezier(.4,0,.2,1)}.optimize-mode-toggle{display:flex;background:var(--bg-primary);border-radius:var(--radius-sm, 8px);padding:3px;gap:2px}.optimize-mode-btn{flex:1;padding:.35rem .75rem;font-size:.8rem;font-weight:500;border:none;background:transparent;color:var(--text-secondary);border-radius:6px;cursor:pointer;transition:all .2s ease}.optimize-mode-btn.active{background:var(--bg-secondary);color:var(--text-primary);font-weight:600;box-shadow:0 1px 3px #00000014}.optimize-auto-info{font-size:.8rem;color:var(--text-secondary);padding:.5rem .75rem;background:var(--accent-bg);border-radius:6px;line-height:1.4}.optimize-manual{display:flex;flex-direction:column;gap:.5rem}.optimize-option-row{display:flex;align-items:center;gap:.5rem;font-size:.8rem}.optimize-option-row label{color:var(--text-secondary);min-width:80px}.optimize-option-row select{flex:1;padding:.35rem .5rem;border:1px solid var(--border);border-radius:6px;background:var(--bg-primary);color:var(--text-primary);font-family:var(--font-primary);font-size:.8rem}.optimize-option-row input[type=number]{padding:.35rem .5rem;border:1px solid var(--border);border-radius:6px;background:var(--bg-primary);color:var(--text-primary);font-size:.8rem}.optimize-checkbox-label{display:flex;align-items:center;gap:.5rem;cursor:pointer}.optimize-compare-btn{display:flex;align-items:center;justify-content:center;gap:.4rem;width:100%;font-size:.8rem}.optimize-compare-btn .cc-icon{width:14px;height:14px}.optimize-source-indicator{display:flex;align-items:center;gap:.4rem;padding:.35rem .6rem;margin-bottom:.5rem;border-radius:6px;font-size:.75rem;color:var(--text-secondary);background:var(--bg-card)}.optimize-source-indicator .cc-icon{width:14px;height:14px;opacity:.7}.optimize-source-indicator.server-active{color:var(--accent);background:rgba(var(--accent-rgb, 99,102,241),.1)}.optimize-source-indicator.server-active .cc-icon{opacity:1}.optimize-source-indicator.wasm-active{color:#10b981;background:#10b9811a}.optimize-source-indicator.wasm-active .cc-icon{opacity:1}#advancedCodecToggle{margin-top:.5rem;margin-bottom:.25rem}#advancedCodecBody{margin-top:.5rem;padding:.5rem;border-radius:6px;background:var(--bg-card);border:1px solid var(--border)}.advanced-codec-grid{display:flex;flex-direction:column;gap:.5rem;font-size:.8rem}.advanced-codec-grid label{display:flex;align-items:center;gap:.5rem;color:var(--text-secondary)}.advanced-codec-grid select{padding:.15rem .3rem;border-radius:4px;border:1px solid var(--border);background:var(--bg-secondary);color:var(--text-primary);font-size:.75rem}.advanced-codec-grid input[type=range]{max-width:80px}.format-source-badge{display:none;font-size:.6rem;padding:.1rem .35rem;border-radius:4px;background:rgba(var(--accent-rgb, 99,102,241),.15);color:var(--accent);font-weight:600;line-height:1;vertical-align:middle;margin-left:.25rem}.format-source-badge.visible{display:inline-block}.optimize-server-progress{font-size:.75rem;color:var(--text-secondary);display:flex;align-items:center;gap:.4rem;margin-top:.3rem}.optimize-server-progress .progress-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:server-pulse 1s ease-in-out infinite}@keyframes server-pulse{0%,to{opacity:.4;transform:scale(.8)}50%{opacity:1;transform:scale(1.2)}}.compare-modal{max-width:560px}.compare-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:.75rem;margin-bottom:1rem}.compare-card{background:var(--bg-card);backdrop-filter:blur(12px);border:2px solid var(--border);border-radius:var(--radius-sm, 8px);padding:.75rem;text-align:center;cursor:pointer;transition:all .2s ease}.compare-card:hover{border-color:var(--accent-light);transform:translateY(-1px)}.compare-card.selected{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-glow)}.compare-card-thumb{width:100%;height:80px;object-fit:contain;border-radius:4px;margin-bottom:.5rem;background:var(--bg-primary)}.compare-card-format{font-size:.85rem;font-weight:700;text-transform:uppercase;margin-bottom:.25rem}.compare-card-size{font-size:.8rem;color:var(--text-secondary)}.compare-card-savings{font-size:.75rem;font-weight:600;color:var(--success)}.compare-card-savings.increase{color:var(--warning)}.compare-card-ssim{font-size:.7rem;color:var(--text-muted);margin-top:.25rem}.compare-card.skeleton{pointer-events:none}.skeleton-thumb{width:100%;height:80px;border-radius:4px;margin-bottom:.5rem;background:var(--bg-primary);position:relative;overflow:hidden}.skeleton-line{height:.7rem;border-radius:4px;background:var(--bg-primary);margin:.35rem auto;width:60%;position:relative;overflow:hidden}.skeleton-line.short{width:40%}.skeleton-thumb:after,.skeleton-line:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 0%,rgba(128,128,128,.08) 50%,transparent 100%);animation:cc-shimmer 1.5s ease-in-out infinite}@keyframes cc-shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.compare-card.fade-in{animation:cc-card-in .3s ease}@keyframes cc-card-in{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.compare-metrics{width:100%;overflow-x:auto}.compare-metrics table{width:100%;border-collapse:collapse;font-size:.8rem}.compare-metrics th{text-align:left;padding:.4rem .5rem;color:var(--text-muted);font-weight:600;border-bottom:1px solid var(--border);white-space:nowrap}.compare-metrics td{padding:.4rem .5rem;border-bottom:1px solid var(--border-light, rgba(0,0,0,.05));font-variant-numeric:tabular-nums}.compare-metrics tr.recommended td{color:var(--accent);font-weight:600}.compare-metrics td.increase{color:var(--warning)}.compare-recommend{margin-top:.75rem;padding:.5rem .75rem;background:var(--accent-bg);border-radius:6px;font-size:.8rem;color:var(--text-secondary)}.compare-recommend:empty{display:none}.savings-modal{max-width:420px}.savings-summary{text-align:center;padding:1.5rem 0 1rem}.savings-big-number{font-size:3rem;font-weight:800;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}.savings-subtitle{font-size:.9rem;color:var(--text-muted);margin-top:.25rem}.savings-size-info{font-size:.85rem;color:var(--text-secondary);margin-top:.5rem;font-variant-numeric:tabular-nums}.savings-list{max-height:200px;overflow-y:auto;margin-top:.75rem}.savings-item{display:flex;align-items:center;justify-content:space-between;padding:.4rem 0;border-bottom:1px solid var(--border-light, rgba(0,0,0,.05));font-size:.8rem}.savings-item-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-secondary)}.savings-item-detail{font-variant-numeric:tabular-nums;color:var(--text-muted);margin:0 .75rem;white-space:nowrap}.savings-item-percent{font-weight:600;color:var(--success);white-space:nowrap}.savings-big-number.increase{background:var(--warning);-webkit-background-clip:text;background-clip:text}.savings-item-percent.increase{color:var(--warning)}[data-theme=dark] .optimize-toggle-track{background:#ffffff26}[data-theme=dark] .optimize-toggle-track:after{background:#e2e8f0}[data-theme=dark] .compare-card{background:var(--bg-card)}[data-theme=dark] .compare-card:hover{border-color:var(--accent)}[data-theme=dark] .compare-metrics td,[data-theme=dark] .savings-item{border-bottom-color:#ffffff0f}.optimize-exif-info{font-size:.75rem;color:var(--text-secondary);opacity:.8;gap:.4rem}.optimize-exif-info .cc-icon{width:14px;height:14px;flex-shrink:0}.cc-lang-hint{position:fixed;top:14px;left:50%;transform:translate(-50%,calc(-100% - 24px));z-index:9500;display:flex;align-items:center;gap:14px;max-width:min(560px,calc(100vw - 24px));padding:12px 14px;background:var(--bg-card);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:var(--glass-border);border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);color:var(--text-primary);font-family:var(--font-primary);font-size:14px;line-height:1.4;opacity:0;transition:transform .5s cubic-bezier(.2,.9,.25,1),opacity .4s ease}.cc-lang-hint.is-visible{transform:translate(-50%);opacity:1}.cc-lang-hint__flag{flex-shrink:0;width:34px;height:34px;border-radius:50%;overflow:hidden;box-shadow:0 1px 3px #00000026,inset 0 0 0 1px #ffffff40}.cc-lang-hint__flag svg{display:block;width:100%;height:100%}.cc-lang-hint__text{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1}.cc-lang-hint__text p{margin:0}.cc-lang-hint__current{font-size:12px;color:var(--text-muted)}.cc-lang-hint__question{font-size:14px;font-weight:600;color:var(--text-primary)}.cc-lang-hint__actions{display:flex;gap:8px;flex-shrink:0}.cc-lang-hint__btn{font:inherit;font-size:13px;font-weight:600;padding:8px 14px;border-radius:var(--radius-xs);border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:background var(--transition-fast),transform var(--transition-fast),border-color var(--transition-fast),box-shadow var(--transition-fast)}.cc-lang-hint__btn--primary{background:var(--accent-gradient);color:#fff;box-shadow:0 2px 8px var(--accent-glow)}.cc-lang-hint__btn--primary:hover{transform:translateY(-1px);box-shadow:0 4px 14px var(--accent-glow)}.cc-lang-hint__btn--ghost{background:transparent;color:var(--text-secondary);border-color:var(--border)}.cc-lang-hint__btn--ghost:hover{background:var(--accent-bg);color:var(--text-primary);border-color:var(--border-strong)}.cc-lang-hint__btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}@media(max-width:560px){.cc-lang-hint{flex-wrap:wrap;top:8px;padding:12px}.cc-lang-hint__actions{width:100%;margin-top:2px}.cc-lang-hint__btn{flex:1;padding:10px 12px}}@media(prefers-reduced-motion:reduce){.cc-lang-hint{transform:translate(-50%);transition:opacity .2s ease}}@media print{.header,.toolbar,.bottom-bar,.side-panel,.toast-container,.cc-lang-hint{display:none!important}.canvas-wrapper{border:none;box-shadow:none}}svg.cc-icon{display:inline-block;width:1em;height:1em;vertical-align:-.125em;flex-shrink:0;overflow:visible;transition:transform .2s ease,opacity .2s ease}svg.cc-icon--sm{width:.75rem;height:.75rem}svg.cc-icon--lg{width:1.5rem;height:1.5rem}svg.cc-icon--xl{width:2rem;height:2rem}svg.cc-icon--2xl{width:3rem;height:3rem}i.cc-icon{display:inline-block;width:1em;height:1em;vertical-align:-.125em}i.cc-icon--2xl{width:3rem;height:3rem}.preset-device-icon{width:1.1em;height:1.1em;margin-right:.35em;vertical-align:-.15em;opacity:.55;transition:opacity .2s ease}.preset-item:hover .preset-device-icon,.preset-item.selected .preset-device-icon{opacity:1}.preset-item-name{display:flex;align-items:center}.logo:hover .cc-icon--scissors{animation:cc-snip .5s ease}@keyframes cc-snip{0%{transform:rotate(0)}20%{transform:rotate(8deg)}40%{transform:rotate(-5deg)}60%{transform:rotate(4deg)}80%{transform:rotate(-2deg)}to{transform:rotate(0)}}.theme-toggle:hover .cc-icon--sun{animation:cc-sun-spin .6s ease}@keyframes cc-sun-spin{0%{transform:rotate(0)}to{transform:rotate(30deg)}}.theme-toggle:hover .cc-icon--moon{animation:cc-moon-tilt .5s ease}@keyframes cc-moon-tilt{0%{transform:rotate(0)}50%{transform:rotate(-15deg)}to{transform:rotate(0)}}.btn:hover>.cc-icon--undo{animation:cc-nudge-left .3s ease}@keyframes cc-nudge-left{0%,to{transform:translate(0)}50%{transform:translate(-2px)}}.btn:hover>.cc-icon--redo{animation:cc-nudge-right .3s ease}@keyframes cc-nudge-right{0%,to{transform:translate(0)}50%{transform:translate(2px)}}@keyframes cc-pulse{0%,to{opacity:1}50%{opacity:.4}}.ai-loading-active .cc-icon--robot{animation:cc-pulse 1.2s ease-in-out infinite}@keyframes cc-bounce{0%,to{transform:translateY(0)}30%{transform:translateY(-3px)}60%{transform:translateY(-1px)}}.cc-icon--save.cc-bounce{animation:cc-bounce .4s ease}svg.cc-icon--chevron{transition:transform .25s ease}.collapsed .cc-icon--chevron,.collapsed .panel-header-icon.cc-icon--chevron{transform:rotate(-90deg)}svg.cc-icon--pencil,svg.cc-icon--brush{transform:none}.btn:active>svg.cc-icon,.tool-btn:active>svg.cc-icon,button:active>svg.cc-icon{transform:scale(.88)}.tool-btn:hover>svg.cc-icon{transform:scale(1.1)}@media(prefers-reduced-motion:reduce){svg.cc-icon{transition:none!important;animation:none!important}.logo:hover .cc-icon--scissors,.theme-toggle:hover .cc-icon--sun,.theme-toggle:hover .cc-icon--moon,.btn:hover>.cc-icon--undo,.btn:hover>.cc-icon--redo,.ai-loading-active .cc-icon--robot,.cc-icon--save.cc-bounce,.tool-btn:hover>svg.cc-icon{animation:none!important;transform:none!important}svg.cc-icon--chevron{transition:none!important}}
