:root{--nav:#111827;--blue:#3B82F6;--blue-h:#2563EB;--bg:#F3F4F6;--card:#fff;--bd:#E5E7EB;--tx:#111827;--tx2:#374151;--mut:#6b7280;--ok:#047857;--warn:#b45309;--bad:#b91c1c;--h:40px}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:Outfit,"Noto Sans TC",system-ui,sans-serif;background:var(--bg);color:var(--tx);line-height:1.6;-webkit-text-size-adjust:100%}
[hidden]{display:none!important}
.ic{width:18px;height:18px;flex:none}
a{color:var(--blue-h)}
.nav{background:var(--nav);color:#fff;height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;position:sticky;top:0;z-index:20}
.nav a{color:#e5e7eb;text-decoration:none;margin-left:16px;font-size:14px}.nav a:hover{color:#fff}
.brand{display:flex;align-items:center;gap:8px;margin:0!important;color:#fff!important}.brand .ic{color:var(--blue);width:22px;height:22px}.brand b{font-weight:600}
.btn,.sel,.inp{height:var(--h);border:1px solid var(--bd);background:#fff;color:var(--tx);border-radius:8px;padding:0 14px;font:500 14px Outfit,"Noto Sans TC",sans-serif;display:inline-flex;align-items:center;gap:6px;cursor:pointer;transition:background .15s,border-color .15s}
.btn:hover{background:#f9fafb;border-color:#d1d5db}.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}.btn.primary:hover{background:var(--blue-h);border-color:var(--blue-h)}
.btn:disabled{opacity:.45;cursor:not-allowed}.btn.icon{width:var(--h);padding:0;justify-content:center}.btn.sm{height:32px;padding:0 10px;font-size:13px}
.sel{padding:0 8px}.inp{width:100%;cursor:text}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.hero{max-width:820px;margin:0 auto;padding:40px 16px 16px;text-align:center}
.hero h1{font-size:34px;margin:0 0 8px}.lead{color:var(--tx2);margin:0 0 24px}
.drop{background:#fff;border:2px dashed #9ca3af;border-radius:12px;padding:32px 16px;transition:border-color .15s,background .15s}
.drop:hover,.drop.over{border-color:var(--blue);background:#eff6ff}.drop .ic{width:36px;height:36px;color:var(--blue)}
.drop-title{font-weight:600;font-size:18px;margin:8px 0 4px}.muted{color:var(--mut)}.small{font-size:13px}
.row{display:flex;gap:8px;align-items:center;margin-top:10px}.row.center{justify-content:center}.row.wrap{flex-wrap:wrap}
.card{background:var(--card);border:1px solid var(--bd);border-radius:10px;padding:14px;margin:16px 0}
.card h2{font-size:15px;margin:0 0 8px}
.notice{display:flex;gap:10px;border:1px solid var(--bd);border-radius:8px;padding:10px 12px;margin:12px 0;text-align:left;font-size:14px}.notice p{margin:0}
.notice.ok{background:#ecfdf5;border-color:#a7f3d0;color:#065f46}.notice.warn{background:#fffbeb;border-color:#fde68a;color:#92400e}
.content{max-width:760px;margin:0 auto;padding:16px}.content h2{margin-top:32px}
.steps li,.plain li{margin:6px 0}details{background:#fff;border:1px solid var(--bd);border-radius:8px;padding:10px 14px;margin:8px 0}summary{cursor:pointer;font-weight:600}
.foot{text-align:center;color:var(--mut);font-size:13px;padding:24px 16px}
/* 工作站 */
#workspace{position:fixed;inset:52px 0 0 0;display:flex;flex-direction:column;background:var(--bg)}
.topbar{display:flex;gap:8px;align-items:center;padding:8px 12px;background:#fff;border-bottom:1px solid var(--bd)}
.fname{font-weight:600;max-width:28vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.grow{flex:1}.zoom{min-width:48px;text-align:right;font-size:13px;color:var(--tx2)}
.work{flex:1;display:flex;min-height:0}
.tools{width:76px;background:#fff;border-right:1px solid var(--bd);padding:8px 6px;display:flex;flex-direction:column;gap:4px;overflow-y:auto}
.tool{border:1px solid transparent;background:none;border-radius:8px;padding:8px 2px;display:flex;flex-direction:column;align-items:center;gap:2px;font:500 12px Outfit,"Noto Sans TC",sans-serif;color:var(--tx2);cursor:pointer}
.tool:hover{background:var(--bg)}.tool.active{background:#eff6ff;border-color:var(--blue);color:var(--blue-h)}.tool.accent{color:var(--blue-h)}.tool:disabled{opacity:.45}
.only-sm{display:none}
.stage{flex:1;position:relative;min-width:0;background:#e5e7eb;overflow:hidden}
#view{position:absolute;inset:0;width:100%;height:100%;touch-action:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.stage-hint{position:absolute;left:8px;bottom:8px;background:rgba(17,24,39,.85);color:#fff;font-size:12px;padding:4px 8px;border-radius:6px;pointer-events:none}
.stage-hint:empty{display:none}
.panel{width:320px;background:var(--bg);border-left:1px solid var(--bd);overflow-y:auto;padding:0 12px 12px}
.panel .card{margin:12px 0}
.info{display:grid;grid-template-columns:64px 1fr;gap:2px 8px;margin:0 0 8px;font-size:13px}.info dt{color:var(--mut)}.info dd{margin:0;word-break:break-all}
#thumb{width:100%;height:auto;background:var(--bg);border:1px solid var(--bd);border-radius:6px}
.field{margin:12px 0}.lbl{display:block;font-size:13px;color:var(--tx2);margin-bottom:4px}
.chk{display:flex;gap:8px;align-items:flex-start;font-size:14px;cursor:pointer}.chk input{margin-top:4px}
.swatches{display:flex;gap:6px;margin-bottom:6px}.sw{width:30px;height:30px;border-radius:6px;border:2px solid var(--bd);cursor:pointer;padding:0}.sw.on{border-color:var(--blue);box-shadow:0 0 0 2px #bfdbfe}
input[type=color]{width:100%;height:var(--h);border:1px solid var(--bd);border-radius:8px;background:#fff;padding:3px}
input[type=range]{width:100%}
.list{list-style:none;margin:8px 0;padding:0;display:flex;flex-direction:column;gap:6px}
.item{border:1px solid var(--bd);border-radius:8px;padding:6px 8px;font-size:13px;display:flex;gap:6px;align-items:center;background:#fff;cursor:pointer}
.item.on{border-color:var(--blue);background:#eff6ff}.item .meta{flex:1;min-width:0}.item .meta small{display:block;color:var(--mut);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.item .btn{height:28px;width:28px}.item .btn .ic{width:15px;height:15px}.item .btn.on{background:#eff6ff;border-color:var(--blue)}
.num{background:var(--blue);color:#fff;border-radius:4px;min-width:22px;text-align:center;font-size:12px;font-weight:600}.num.c{background:#f59e0b}
.badge{background:var(--bd);border-radius:10px;padding:0 8px;font-size:12px}.tag{font-size:11px;padding:0 6px;border-radius:4px;background:#fef3c7;color:#92400e}
progress{width:100%}
/* 匯出 */
dialog{border:none;border-radius:12px;padding:0;width:min(920px,96vw);max-height:94vh;overflow:hidden}dialog::backdrop{background:rgba(17,24,39,.55)}
.dlg{display:flex;flex-direction:column;max-height:94vh}.dlg-head,.dlg-foot{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--bd)}
.dlg-foot{border-top:1px solid var(--bd);border-bottom:none;justify-content:flex-end;gap:8px}.dlg-head h2{margin:0;font-size:18px}.dlg-body{padding:12px 16px;overflow-y:auto}
.dlg h3{font-size:14px;margin:12px 0 6px;display:flex;align-items:center;gap:8px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.checks{list-style:none;padding:0;margin:0;font-size:13px}.checks li{display:flex;gap:6px;padding:3px 0}.checks .st{font-weight:700;min-width:44px}
.st.ok{color:var(--ok)}.st.fail{color:var(--bad)}.st.warn{color:var(--warn)}.st.skip{color:var(--mut)}
.chip{display:inline-flex;align-items:center;gap:4px;height:var(--h);padding:0 12px;border:1px solid var(--bd);border-radius:8px;cursor:pointer;font-size:14px}.chip:has(input:checked){border-color:var(--blue);background:#eff6ff}.chip:has(input:disabled){opacity:.45;cursor:not-allowed}
.prev{border:1px solid var(--bd);border-radius:8px;min-height:160px;max-height:300px;display:flex;align-items:center;justify-content:center;background:repeating-conic-gradient(#e5e7eb 0 25%,#fff 0 50%) 0 0/16px 16px;overflow:hidden}.prev img{max-width:100%;max-height:300px}
#toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--nav);color:#fff;padding:10px 16px;border-radius:8px;font-size:14px;z-index:60;max-width:92vw;opacity:0;pointer-events:none;transition:opacity .2s}#toast.show{opacity:1}
#dropVeil{position:fixed;inset:0;background:rgba(59,130,246,.85);color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;z-index:50}
@media (max-width:900px){.panel{width:280px}.grid2{grid-template-columns:1fr}}
@media (max-width:720px){
  .hide-sm{display:none!important}.only-sm{display:flex}.hero h1{font-size:26px}.nav nav a:last-child{display:none}
  #workspace{inset:52px 0 0 0}.fname{max-width:34vw}
  .work{flex-direction:column}.stage{order:1}
  .tools{order:2;width:100%;flex-direction:row;border-right:none;border-top:1px solid var(--bd);padding:6px;overflow-x:auto;overflow-y:hidden;padding-bottom:max(6px,env(safe-area-inset-bottom))}
  .tool{min-width:62px;flex:none}
  .panel{position:fixed;left:0;right:0;bottom:0;top:35%;width:auto;z-index:30;border-left:none;border-top:1px solid var(--bd);border-radius:14px 14px 0 0;transform:translateY(105%);transition:transform .2s;box-shadow:0 -4px 16px rgba(0,0,0,.12)}
  .panel.open{transform:none}.close-panel{position:sticky;top:8px;margin-left:auto;margin-top:8px;display:flex;z-index:2}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}