*{box-sizing:border-box;margin:0;padding:0}:root{--bg-app:#f2f2f2;--bg-panel:#fff;--bg-canvas:#e5e5e5;--text-main:#111;--text-secondary:#555;--text-muted:#888;--border-main:#e2e2e2;--border-hover:#ccc;--accent-color:#000;--accent-text:#fff;--hover-bg:#f6f6f6;--active-bg:#ececec;--cyan:#0891b2;--ok:#16a34a;--danger:#dc2626;--shadow-md:0 4px 16px #00000014;--font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--mono:ui-monospace, SFMono-Regular, Menlo, monospace}[data-theme=dark]{--bg-app:#090909;--bg-panel:#111;--bg-canvas:#161616;--text-main:#ededed;--text-secondary:#999;--text-muted:#555;--border-main:#222;--border-hover:#333;--accent-color:#fff;--accent-text:#111;--hover-bg:#1a1a1a;--active-bg:#232323;--cyan:#22d3ee;--ok:#22c55e;--danger:#ef4444;--shadow-md:0 4px 16px #00000080}html,body{background:var(--bg-app);color:var(--text-main);font-family:var(--font-family);-webkit-font-smoothing:antialiased;height:100vh;font-size:13px;line-height:1.5;overflow:hidden}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-main);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}button{color:inherit;cursor:pointer;background:0 0;border:none;font-family:inherit}input,select{font-family:inherit}.app{grid-template-rows:48px 1fr;width:100vw;height:100vh;display:grid}.header{background:var(--bg-panel);border-bottom:1px solid var(--border-main);z-index:50;justify-content:space-between;align-items:center;padding:0 14px;display:flex}.logo{letter-spacing:-.02em;align-items:center;gap:9px;font-size:1.05rem;font-weight:650;display:flex}.logo svg{color:var(--accent-color)}.header-right{align-items:center;gap:10px;display:flex}.icon-btn{width:32px;height:32px;color:var(--text-secondary);border:1px solid #0000;border-radius:6px;justify-content:center;align-items:center;transition:background .14s,color .14s,border-color .14s;display:inline-flex}.icon-btn:hover{background:var(--hover-bg);border-color:var(--border-main);color:var(--text-main)}.btn{border:1px solid var(--border-main);color:var(--text-main);background:var(--bg-panel);white-space:nowrap;border-radius:6px;justify-content:center;align-items:center;gap:7px;padding:8px 12px;font-size:.82rem;font-weight:550;transition:background .14s,border-color .14s,opacity .14s;display:inline-flex}.btn:hover{background:var(--hover-bg);border-color:var(--border-hover)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--accent-color);color:var(--accent-text);border-color:var(--accent-color)}.btn-primary:hover{opacity:.88;background:var(--accent-color)}.btn-block{width:100%}.btn-huge{text-transform:uppercase;letter-spacing:.03em;border-radius:8px;padding:13px 20px;font-size:.98rem;font-weight:750;box-shadow:0 4px 12px #0000001f}.btn-ok{background:color-mix(in srgb, var(--ok) 16%, transparent);border-color:color-mix(in srgb, var(--ok) 40%, transparent);color:var(--text-main)}.btn-ok:hover{background:color-mix(in srgb, var(--ok) 26%, transparent)}.btn-danger{background:color-mix(in srgb, var(--danger) 14%, transparent);border-color:color-mix(in srgb, var(--danger) 35%, transparent);color:var(--text-main)}.btn-danger:hover{background:color-mix(in srgb, var(--danger) 24%, transparent)}.segmented{background:var(--hover-bg);border:1px solid var(--border-main);border-radius:6px;padding:2px;display:flex}.segment{color:var(--text-secondary);border-radius:4px;padding:4px 10px;font-size:.8rem;font-weight:550;transition:all .14s}.segment.active{background:var(--accent-color);color:var(--accent-text)}.body{grid-template-columns:96px 1fr 320px;height:calc(100vh - 48px);display:grid;overflow:hidden}.rail{background:var(--bg-panel);border-right:1px solid var(--border-main);flex-direction:column;display:flex;overflow:hidden}.rail-head{letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);justify-content:space-between;align-items:center;padding:10px 10px 6px;font-size:.66rem;font-weight:650;display:flex}.rail-list{flex-direction:column;flex:1;gap:8px;padding:4px 8px 8px;display:flex;overflow-y:auto}.thumb{border:1.5px solid var(--border-main);cursor:pointer;aspect-ratio:1;background:var(--bg-canvas);border-radius:8px;flex:none;transition:border-color .14s;position:relative;overflow:hidden}.thumb:hover{border-color:var(--border-hover)}.thumb.active{border-color:var(--accent-color)}.thumb-img{object-fit:contain;background-image:linear-gradient(45deg, var(--active-bg) 25%, transparent 25%), linear-gradient(-45deg, var(--active-bg) 25%, transparent 25%), linear-gradient(45deg, transparent 75%, var(--active-bg) 75%), linear-gradient(-45deg, transparent 75%, var(--active-bg) 75%);background-position:0 0,0 7px,7px -7px,-7px 0;background-size:14px 14px;width:100%;height:100%;display:block}.thumb-x{color:#fff;opacity:0;background:#0000008c;border-radius:5px;justify-content:center;align-items:center;width:18px;height:18px;transition:all .14s;display:flex;position:absolute;top:3px;right:3px}.thumb:hover .thumb-x{opacity:1}.thumb-x:hover{background:var(--danger)}.thumb-badge{background:var(--accent-color);color:var(--accent-text);border-radius:4px;padding:1px 5px;font-size:.58rem;font-weight:700;position:absolute;bottom:3px;left:3px}.rail-add{border:1.5px dashed var(--border-hover);color:var(--text-secondary);border-radius:8px;flex-direction:column;align-items:center;gap:4px;margin:8px;padding:14px 0;font-size:.7rem;transition:all .14s;display:flex}.rail-add:hover{border-color:var(--accent-color);color:var(--text-main);background:var(--hover-bg)}.stage{background:var(--bg-canvas);width:100%;height:100%;position:relative;overflow:hidden}.stage-scroll{touch-action:none;display:flex;position:absolute;inset:0;overflow:auto}.stage-inner{flex:none;margin:auto;position:relative}.artboard{transform-origin:0 0;box-shadow:var(--shadow-md);background-color:#fff;background-image:linear-gradient(45deg,#e0e0e0 25%,#0000 25%),linear-gradient(-45deg,#e0e0e0 25%,#0000 25%),linear-gradient(45deg,#0000 75%,#e0e0e0 75%),linear-gradient(-45deg,#0000 75%,#e0e0e0 75%);background-position:0 0,0 9px,9px -9px,-9px 0;background-size:18px 18px;position:relative}[data-theme=dark] .artboard{background-color:#2a2a2a;background-image:linear-gradient(45deg,#1f1f1f 25%,#0000 25%),linear-gradient(-45deg,#1f1f1f 25%,#0000 25%),linear-gradient(45deg,#0000 75%,#1f1f1f 75%),linear-gradient(-45deg,#0000 75%,#1f1f1f 75%);background-position:0 0,0 9px,9px -9px,-9px 0;background-size:18px 18px}.artboard-layer{width:100%;height:100%;position:absolute;inset:0}.artboard-img{image-rendering:auto;pointer-events:none;position:absolute}.vector-overlay{pointer-events:none;position:absolute;inset:0}.vector-overlay svg{width:100%;height:100%;display:block}.crop-shade{pointer-events:none;background:#00000073;position:absolute}.crop-box{border:1.5px solid var(--cyan);position:absolute;box-shadow:0 0 0 9999px #0000}.crop-handle{background:var(--cyan);z-index:3;border:2px solid #fff;border-radius:2px;width:12px;height:12px;position:absolute}.crop-handle.nw{cursor:nwse-resize;top:-6px;left:-6px}.crop-handle.ne{cursor:nesw-resize;top:-6px;right:-6px}.crop-handle.sw{cursor:nesw-resize;bottom:-6px;left:-6px}.crop-handle.se{cursor:nwse-resize;bottom:-6px;right:-6px}.crop-handle.n{cursor:ns-resize;margin-left:-6px;top:-6px;left:50%}.crop-handle.s{cursor:ns-resize;margin-left:-6px;bottom:-6px;left:50%}.crop-handle.w{cursor:ew-resize;margin-top:-6px;top:50%;left:-6px}.crop-handle.e{cursor:ew-resize;margin-top:-6px;top:50%;right:-6px}.empty{color:var(--text-muted);pointer-events:none;flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:24px;display:flex;position:absolute;inset:0}.empty .drop{pointer-events:auto;border:1.5px dashed var(--border-hover);color:var(--text-secondary);text-align:center;border-radius:14px;flex-direction:column;align-items:center;gap:12px;padding:38px 54px;transition:all .14s;display:flex}.empty .drop:hover{border-color:var(--accent-color);color:var(--text-main);background:var(--hover-bg)}.stage-tools{z-index:20;background:var(--bg-panel);border:1px solid var(--border-main);box-shadow:var(--shadow-md);border-radius:8px;gap:6px;padding:4px;display:flex;position:absolute;top:12px;left:12px}.stage-tools .icon-btn.active{background:var(--accent-color);color:var(--accent-text)}.zoom-island{z-index:20;background:var(--bg-panel);border:1px solid var(--border-main);box-shadow:var(--shadow-md);border-radius:10px;flex-direction:column;align-items:center;display:flex;position:absolute;bottom:14px;right:14px;overflow:hidden}.zoom-island button{width:40px;height:36px;color:var(--text-secondary);justify-content:center;align-items:center;display:flex}.zoom-island button:hover{background:var(--hover-bg);color:var(--text-main)}.zoom-island .zoom-val{color:var(--text-muted);padding:4px 0;font-size:.66rem;font-weight:600}.view-toggle{z-index:20;position:absolute;top:12px;left:50%;transform:translate(-50%)}.panel{background:var(--bg-panel);border-left:1px solid var(--border-main);overflow-y:auto}.panel-inner{flex-direction:column;gap:4px;padding:16px 16px 40px;display:flex}.section{border-bottom:1px solid var(--border-main);padding:16px 0}.section:last-child{border-bottom:none}.section-head{align-items:center;gap:8px;margin-bottom:12px;display:flex}.section-head svg{color:var(--accent-color)}.section-title{letter-spacing:.06em;text-transform:uppercase;font-size:.74rem;font-weight:700}.section-num{color:var(--text-muted);margin-left:auto;font-size:.9rem;font-weight:700}.section-desc{color:var(--text-muted);margin:-6px 0 12px;font-size:.72rem}.field{flex-direction:column;gap:6px;margin-bottom:12px;display:flex}.field-label{color:var(--text-secondary);font-size:.72rem;font-weight:550}.input,.select{border:1px solid var(--border-main);background:var(--bg-app);width:100%;color:var(--text-main);border-radius:6px;outline:none;padding:8px 10px;font-size:.82rem}.input:focus,.select:focus{border-color:var(--border-hover)}.row2{grid-template-columns:1fr 1fr;gap:10px;display:grid}.check{cursor:pointer;align-items:center;gap:9px;padding:7px 0;font-size:.8rem;display:flex}.check input{width:15px;height:15px;accent-color:var(--accent-color);cursor:pointer}.slider{margin-bottom:14px}.slider-head{justify-content:space-between;align-items:baseline;margin-bottom:6px;display:flex}.slider-head .lab{color:var(--text-secondary);font-size:.74rem}.slider-head .val{font-size:.78rem;font-weight:650;font-family:var(--mono)}.range{appearance:none;background:var(--border-main);border-radius:2px;outline:none;width:100%;height:4px}.range::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent-color);cursor:pointer;border:2px solid var(--bg-panel);border-radius:50%;width:15px;height:15px}.range::-moz-range-thumb{background:var(--accent-color);cursor:pointer;border:2px solid var(--bg-panel);border-radius:50%;width:15px;height:15px}.hint{color:var(--text-muted);margin-top:-8px;margin-bottom:10px;font-size:.68rem}.stack{flex-direction:column;gap:8px;display:flex}.btn-row{gap:8px;display:flex}.btn-row>*{flex:1}.examples{grid-template-columns:repeat(4,1fr);gap:8px;margin-top:4px;display:grid}.example{aspect-ratio:1;border:1px solid var(--border-main);cursor:pointer;border-radius:7px;transition:all .14s;overflow:hidden}.example:hover{border-color:var(--accent-color);transform:translateY(-1px)}.example img{object-fit:cover;width:100%;height:100%;display:block}.progress{margin-top:8px}.progress-bar{background:var(--border-main);border-radius:3px;height:6px;overflow:hidden}.progress-fill{background:var(--accent-color);height:100%;transition:width .2s}.progress-label{color:var(--text-muted);margin-top:5px;font-size:.7rem}.spin{animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.drag-overlay{z-index:200;background:color-mix(in srgb, var(--bg-app) 70%, transparent);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);pointer-events:none;justify-content:center;align-items:center;display:none;position:fixed;inset:0}.drag-overlay.on{display:flex}.drag-overlay-box{border:2px dashed var(--accent-color);color:var(--text-main);background:var(--bg-panel);border-radius:16px;flex-direction:column;align-items:center;gap:14px;padding:48px 64px;font-size:1rem;font-weight:600;display:flex}.toast{z-index:300;background:var(--accent-color);color:var(--accent-text);box-shadow:var(--shadow-md);border-radius:8px;padding:10px 18px;font-size:.82rem;font-weight:550;position:fixed;bottom:20px;left:50%;transform:translate(-50%)}.badge-pill{background:var(--active-bg);color:var(--text-secondary);border-radius:100px;padding:2px 7px;font-size:.62rem;font-weight:700}.welcome-overlay{z-index:500;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#0000008c;justify-content:center;align-items:center;padding:24px;animation:.18s welcome-fade;display:flex;position:fixed;inset:0}@keyframes welcome-fade{0%{opacity:0}to{opacity:1}}.welcome-card{background:var(--bg-panel);border:1px solid var(--border-main);border-radius:18px;width:100%;max-width:540px;padding:30px 32px 22px;animation:.2s cubic-bezier(.2,.8,.2,1) welcome-pop;box-shadow:0 24px 64px #00000080}@keyframes welcome-pop{0%{opacity:0;transform:translateY(8px)scale(.98)}to{opacity:1;transform:none}}.welcome-brand{align-items:center;gap:10px;margin-bottom:18px;display:flex}.welcome-brand img{display:block}.welcome-title{letter-spacing:-.02em;margin-bottom:14px;font-size:1.7rem;font-weight:750}.welcome-body{color:var(--text-secondary);margin-bottom:12px;font-size:.95rem;line-height:1.6}.welcome-body u{-webkit-text-decoration-color:var(--text-muted);text-decoration-color:var(--text-muted);text-underline-offset:3px;color:var(--text-main)}.welcome-planar{background:var(--hover-bg);border:1px solid var(--border-main);color:var(--text-secondary);border-radius:10px;justify-content:space-between;align-items:center;gap:8px;margin-top:4px;padding:11px 13px;font-size:.82rem;text-decoration:none;transition:all .14s;display:flex}.welcome-planar:hover{border-color:var(--border-hover);color:var(--text-main)}.welcome-planar strong{color:var(--text-main);font-weight:650}.welcome-planar svg{flex-shrink:0}.welcome-divider{background:var(--border-main);height:1px;margin:20px 0 16px}.welcome-foot{justify-content:space-between;align-items:center;display:flex}.welcome-ok{border-radius:10px;min-width:96px;padding:11px 22px;font-size:.92rem;font-weight:650}.ctx-menu{z-index:400;background:var(--bg-panel);border:1px solid var(--border-main);min-width:150px;box-shadow:var(--shadow-md);border-radius:8px;padding:4px;position:fixed}.ctx-item{width:100%;color:var(--text-main);text-align:left;border-radius:5px;align-items:center;gap:8px;padding:7px 10px;font-size:.8rem;display:flex}.ctx-item:hover{background:var(--hover-bg)}.save-warning-footer{border-top:1px solid var(--border-main);color:var(--text-muted);align-items:flex-start;gap:8px;margin-top:auto;padding:16px 12px 8px;display:flex}.save-warning-text{font-size:.68rem;line-height:1.4}.about-footer{text-align:center;flex-direction:column;flex-shrink:0;gap:8px;padding:8px 12px 16px;display:flex}.about-author{color:var(--text-secondary);font-size:.68rem;font-weight:500}.about-links{justify-content:center;gap:16px;display:flex}.about-link{color:var(--text-muted);transition:color var(--transition-fast,.15s);align-items:center;gap:4px;font-size:.68rem;text-decoration:none;display:inline-flex}.about-link:hover{color:var(--text-main)}.thumb-eye{color:#fff;opacity:0;z-index:5;cursor:pointer;background:#0000008c;border:none;border-radius:5px;justify-content:center;align-items:center;width:18px;height:18px;padding:0;transition:all .14s;display:flex;position:absolute;top:3px;left:3px}.thumb:hover .thumb-eye,.thumb-eye.visible{opacity:1}.thumb-eye:hover{background:var(--accent-color)}