:root{--bg:#f6f3ec;--surface:#fff;--ink:#281e12;--ink-hover:#3e3120;--ink-soft:#6b5d48;--ink-faint:#786a54;--line:#e9e2d4;--accent:#7cb46b;--accent-deep:#5f9150;--accent-soft:#eef5ea;--accent-line:#d3e5c9;--accent-ink:#24380f;--danger:#c62828;--radius:14px;--radius-s:10px;--shadow-pop:0 12px 48px #00000040}*{box-sizing:border-box;margin:0;padding:0}[hidden]{display:none!important}html,body{height:100%}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;flex-direction:column;min-height:100vh;font-family:PingFang SC,Hiragino Sans GB,HarmonyOS Sans SC,Noto Sans SC,Microsoft YaHei,system-ui,sans-serif;display:flex}.topbar{background:var(--surface);border-bottom:1px solid var(--line);z-index:10;justify-content:space-between;align-items:center;padding:14px 24px;display:flex;position:sticky;top:0}.brand{align-items:center;gap:12px;display:flex}.brand-mark{width:36px;height:36px}.brand-text h1{letter-spacing:.2px;font-size:19px;font-weight:700}.brand-text p{color:var(--ink-soft);font-size:12px}.privacy-chip{color:var(--accent-deep);background:var(--accent-soft);border:1px solid var(--accent-line);white-space:nowrap;border-radius:999px;padding:5px 12px;font-size:12px}.topbar-actions{align-items:center;gap:8px;display:flex}.chip-btn{border:1px solid var(--line);background:var(--surface);color:var(--ink-soft);cursor:pointer;white-space:nowrap;border-radius:999px;padding:5px 12px;font-family:inherit;font-size:12px;text-decoration:none;transition:all .15s}.chip-btn:hover{border-color:var(--accent);color:var(--accent-deep)}.chip-btn.share{background:var(--accent-soft);border-color:var(--accent-line);color:var(--accent-deep)}.chip-btn.share:hover{background:var(--accent-line);border-color:var(--accent);color:var(--accent-deep)}@media (width<=900px){.brand-text p{display:none}}@media (width<=640px){.privacy-chip{display:none}}.app{flex:1;grid-template-columns:336px 1fr;align-items:start;gap:18px;width:100%;max-width:1440px;margin:0 auto;padding:18px 24px;display:grid}@media (width<=960px){.app{grid-template-columns:1fr}}.panel{flex-direction:column;gap:14px;display:flex;position:sticky;top:82px}@media (width<=960px){.panel{position:static}}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px}.card h2{color:var(--ink-soft);letter-spacing:.3px;margin-bottom:12px;font-size:13px;font-weight:600}.card h2.mt{margin-top:16px}.dropzone{border:2px dashed var(--line);border-radius:var(--radius-s);text-align:center;cursor:pointer;padding:22px 12px;transition:border-color .15s,background .15s;display:block}.dropzone:hover,.dropzone.dragover{border-color:var(--accent);background:var(--accent-soft)}.dropzone input[type=file]{display:none}.dz-icon{width:26px;height:26px;color:var(--ink-faint);margin:0 auto;display:block}.dz-text{margin-top:6px;font-size:14px}.dz-hint{color:var(--ink-faint);margin-top:4px;font-size:12px}.dz-file{color:var(--ink-soft);word-break:break-all;margin-top:6px;font-size:12px;font-weight:600}.meta-row{color:var(--ink-soft);justify-content:center;gap:12px;margin-top:10px;font-size:12px;display:flex}.seg{grid-template-columns:1fr 1fr;gap:6px;display:grid}.seg.four{grid-template-columns:repeat(2,1fr)}.seg.small{grid-template-columns:1fr 1fr}.bg-row{grid-template-columns:1fr auto;align-items:stretch;gap:8px;display:grid}.swatches{grid-template-columns:repeat(5,1fr);gap:6px;display:grid}.swatch{aspect-ratio:1.6;border:2px solid var(--line);border-radius:var(--radius-s);cursor:pointer;background:0 0;padding:0;transition:border-color .12s,box-shadow .12s,transform .12s;position:relative;overflow:hidden}.swatch:hover{border-color:var(--accent);transform:translateY(-1px)}.swatch input{opacity:0;pointer-events:none;position:absolute}.swatch span{width:100%;height:100%;display:block}.swatch:has(input:checked){border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}.swatch:has(input:disabled){opacity:.45;cursor:not-allowed}.swatch .checker{background-color:#fff;background-image:linear-gradient(45deg,#00000014 25%,#0000 25% 75%,#00000014 75%),linear-gradient(45deg,#00000014 25%,#0000 25% 75%,#00000014 75%);background-position:0 0,5px 5px;background-repeat:repeat,repeat;background-size:10px 10px;background-attachment:scroll,scroll;background-origin:padding-box,padding-box;background-clip:border-box,border-box}.swatch.custom span{background:var(--surface);border:1.5px dashed var(--line);border-radius:6px}.dice{aspect-ratio:1.6;border:2px dashed var(--accent);border-radius:var(--radius-s);background:var(--accent-soft);cursor:pointer;flex-shrink:0;justify-content:center;align-items:center;width:52px;font-size:17px;transition:all .15s;display:flex}.dice:hover{background:var(--accent);transform:translateY(-1px)}.dice:active{transform:translateY(0)scale(.94)}.seg label{text-align:center;border:1px solid var(--line);border-radius:var(--radius-s);cursor:pointer;color:var(--ink-soft);user-select:none;padding:8px 6px;font-size:12.5px;transition:all .12s;display:block;position:relative}.seg label:hover{border-color:var(--accent);color:var(--ink)}.seg input{display:none}.seg input:checked+span{color:var(--accent-deep);font-weight:600;display:block;position:static}.seg label:has(input:checked){background:var(--accent-soft);border-color:var(--accent);color:var(--accent-deep)}.field{margin-bottom:12px;display:block}.field.mt{margin-top:16px}.field>span{color:var(--ink-soft);margin-bottom:6px;font-size:12px;display:block}.field input[type=text],.field input[type=number]{border:1px solid var(--line);border-radius:var(--radius-s);width:100%;color:var(--ink);background:var(--bg);padding:9px 12px;font-family:inherit;font-size:14px;transition:border-color .15s}.field input:focus{border-color:var(--accent);outline:none}.field input[type=file]{display:none}.logo-pick{border:1px solid var(--line);border-radius:var(--radius-s);background:var(--bg);color:var(--ink);cursor:pointer;flex-shrink:0;padding:8px 14px;font-family:inherit;font-size:12.5px;transition:border-color .15s}.logo-pick:hover{border-color:var(--accent);color:var(--accent-deep)}.logo-file{min-width:0;color:var(--ink-soft);white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:12px;overflow:hidden}.field-head{justify-content:space-between;align-items:baseline;display:flex}.field-head b{color:var(--ink);font-variant-numeric:tabular-nums;font-size:12px}.field input[type=range]{-webkit-appearance:none;appearance:none;background:var(--line);cursor:pointer;border-radius:3px;width:100%;height:6px}.field input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);border:3px solid var(--surface);border-radius:50%;width:18px;height:18px;box-shadow:0 1px 4px #00000040}.field input[type=range]::-moz-range-thumb{background:var(--accent);border:3px solid var(--surface);border-radius:50%;width:14px;height:14px}.logo-row{align-items:center;gap:8px;display:flex}.btn{border:1px solid var(--line);border-radius:var(--radius-s);background:var(--surface);width:100%;color:var(--ink);cursor:pointer;margin-bottom:8px;padding:11px 14px;font-family:inherit;font-size:14px;font-weight:600;transition:all .15s;display:block}.btn:hover:not(:disabled){border-color:var(--accent);background:var(--accent-soft)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.primary{background:var(--ink);border-color:var(--ink);color:#f6f3ec}.btn.primary:hover:not(:disabled){background:var(--ink-hover);border-color:var(--ink-hover)}.ghost-btn{border:1px solid var(--line);border-radius:var(--radius-s);color:var(--ink-soft);cursor:pointer;background:0 0;padding:6px 12px;font-family:inherit;font-size:12px}.ghost-btn:hover{border-color:var(--accent);color:var(--accent-deep)}.divider{border-top:1px solid var(--line);margin:12px 0}.ext-title{color:var(--ink-faint);margin-bottom:8px;font-size:12px}.note{color:var(--danger);margin-top:6px;font-size:12px;line-height:1.6}.stage{flex-direction:column;gap:14px;min-width:0;display:flex}.stage-inner{border:1px solid var(--line);border-radius:var(--radius);background-color:#0000;background-image:linear-gradient(45deg,#00000008 25%,#0000 25% 75%,#00000008 75%),linear-gradient(45deg,#00000008 25%,#0000 25% 75%,#00000008 75%);background-position:0 0,12px 12px;background-repeat:repeat,repeat;background-size:24px 24px;background-attachment:scroll,scroll;background-origin:padding-box,padding-box;background-clip:border-box,border-box;justify-content:center;align-items:center;min-height:340px;padding:18px;display:flex}.canvas-wrap{justify-content:center;align-items:center;max-width:100%;max-height:min(72vh,860px);display:flex}#preview{background:#fff;border-radius:6px;width:auto;max-width:100%;height:auto;max-height:min(72vh,860px);display:block;box-shadow:0 10px 34px #281e122e}.timeline{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);align-items:center;gap:12px;padding:12px 16px;display:flex}.play-btn{background:var(--accent);width:40px;height:40px;color:var(--accent-ink);cursor:pointer;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;transition:background .15s;display:inline-flex}.play-btn svg{width:15px;height:15px}.play-btn .ic-pause{display:none}.play-btn.playing{background:var(--ink);color:#f6f3ec}.play-btn.playing .ic-play{display:none}.play-btn.playing .ic-pause{display:block}.play-btn:hover:not(:disabled){background:var(--accent-deep);color:var(--accent-ink)}.play-btn:disabled{opacity:.45;cursor:not-allowed}.timeline input[type=range]{-webkit-appearance:none;appearance:none;background:var(--line);cursor:pointer;border-radius:3px;flex:1;height:6px}.timeline input[type=range]:disabled{opacity:.5;cursor:not-allowed}.timeline input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);border:3px solid var(--surface);border-radius:50%;width:18px;height:18px;box-shadow:0 1px 4px #00000040}.timeline input[type=range]::-moz-range-thumb{background:var(--accent);border:3px solid var(--surface);border-radius:50%;width:14px;height:14px}.time-label{color:var(--ink-soft);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:12px}.cover-chip{color:var(--ink-soft);background:var(--accent-soft);white-space:nowrap;border-radius:999px;padding:4px 10px;font-size:12px}.cover-chip b{color:var(--accent-deep)}.progress-overlay{backdrop-filter:blur(3px);z-index:100;background:#281e1273;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.progress-card{background:var(--surface);border-radius:var(--radius);text-align:center;width:min(420px,90vw);box-shadow:var(--shadow-pop);padding:28px 32px}.progress-card h3{margin-bottom:14px;font-size:16px}.bar{background:var(--line);border-radius:4px;height:8px;overflow:hidden}.bar-fill{background:linear-gradient(90deg, var(--accent), var(--accent-deep));border-radius:4px;width:0%;height:100%;transition:width .15s}.progress-note{color:var(--ink-soft);min-height:1.4em;margin-top:10px;font-size:12px}.progress-card .ghost-btn{margin-top:14px}.toast{background:var(--ink);color:#fff;border-radius:var(--radius-s);z-index:200;align-items:center;gap:12px;max-width:min(90vw,520px);padding:10px 16px;font-size:13px;display:flex;position:fixed;bottom:28px;left:50%;transform:translate(-50%);box-shadow:0 8px 30px #0000004d}.toast-btn{color:var(--ink);cursor:pointer;white-space:nowrap;background:#f6f3ec;border:none;border-radius:999px;flex-shrink:0;padding:6px 14px;font-family:inherit;font-size:12px;font-weight:600}.toast-btn:hover{background:#fff}.foot{text-align:center;color:var(--ink-faint);padding:16px;font-size:12px}.foot a{color:var(--ink-soft);border-bottom:1px solid var(--ink-faint);text-decoration:none}.foot a:hover{color:var(--accent-deep);border-color:var(--accent)}.foot .dot{margin:0 8px}.foot-sub{margin-top:4px}@media (width<=960px){.stage{order:-1}.seg label{padding:13px 6px}.btn{padding:13px 14px}.swatch{aspect-ratio:1.3}.dice{aspect-ratio:1.2}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px}