*{box-sizing:border-box}html,body,#app{margin:0;width:100%;height:100%;overflow:hidden;font-family:"Microsoft YaHei UI","Microsoft YaHei",Arial,sans-serif;color:#162033;background:#eef2f7}body{background:#eef2f7}#app{display:grid;grid-template-columns:330px 1fr;grid-template-rows:104px 1fr}#app.panel-collapsed{grid-template-columns:0 1fr}.site-header{grid-column:1/3;display:flex;flex-direction:column;background:#0b1220;color:#fff;box-shadow:0 2px 12px #0003;z-index:3;min-width:0}.header-top{height:58px;display:flex;align-items:center;gap:14px;padding:8px 14px;border-bottom:1px solid #22304a;min-width:0}.brand{font-size:20px;line-height:1.1;margin:0;white-space:nowrap;color:#fff}.service-copy{font-size:12px;color:#cbd5e1;white-space:nowrap}.contact-links{margin-left:auto;display:flex;align-items:center;gap:7px;overflow-x:auto;padding-bottom:1px}.cta{display:inline-flex;align-items:center;white-space:nowrap;text-decoration:none;color:#e2e8f0;border:1px solid #334155;background:#111c31;border-radius:8px;padding:7px 9px;font-size:12px;font-weight:700}.cta:hover{background:#1d4ed8;border-color:#3b82f6;color:#fff}.cta.tool-link{background:#0f766e;border-color:#0d9488;color:#fff}.cta.support{background:#7c2d12;border-color:#9a3412;color:#fff}.header-tools{height:46px;display:flex;align-items:center;gap:7px;padding:6px 14px;overflow-x:auto}.header-tools button{flex:0 0 auto;border:1px solid #334155;background:#172554;color:#dbeafe;border-radius:8px;padding:7px 10px;font-size:12px;font-weight:700;cursor:pointer}.header-tools button:hover{background:#1d4ed8;color:#fff}.header-tools button.active{background:#047857;border-color:#10b981;color:#fff}.header-tools .open-folder-top{background:#2563eb;border-color:#3b82f6;color:#fff;padding-left:14px;padding-right:14px}aside{grid-row:2;padding:14px;background:#f8fafc;border-right:1px solid #dbe3ee;overflow:auto;transition:transform .18s ease,opacity .18s ease}#app.panel-collapsed aside{transform:translateX(-100%);opacity:0;pointer-events:none}aside section{background:white;border:1px solid #e2e8f0;border-radius:12px;padding:14px;margin-bottom:12px;box-shadow:0 2px 8px #0f172a0b}h2{margin:0 0 12px;font-size:15px}label{display:block;font-size:12px;color:#64748b;margin:10px 0 6px}textarea,select{width:100%;border:1px solid #cbd5e1;border-radius:8px;padding:9px;background:#fff;color:#0f172a;outline:none}textarea:focus,select:focus{border-color:#2563eb;box-shadow:0 0 0 3px #2563eb18}.row{display:flex;gap:8px;margin-top:9px}.row button{flex:1}button{border:1px solid #cbd5e1;background:#fff;color:#334155;padding:9px 10px;border-radius:8px;cursor:pointer;font-weight:600}button:hover{background:#f1f5f9}button.primary{background:#2563eb;border-color:#2563eb;color:#fff}.big-open{display:block;width:100%;font-size:15px;padding:12px 10px}.short-note{margin:10px 0 0;font-size:12px;line-height:1.65;color:#64748b}.advanced{margin-top:12px;border-top:1px dashed #dbe3ee;padding-top:9px}.advanced summary{cursor:pointer;font-size:12px;color:#64748b;user-select:none}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:8px}.button-link{display:flex;align-items:center;justify-content:center;min-height:38px;border:1px solid #cbd5e1;border-radius:8px;text-decoration:none;color:#334155;background:#fff;font-size:13px;font-weight:700}.button-link:hover{background:#f1f5f9}.button-link.customer{background:#ecfdf5;border-color:#a7f3d0;color:#047857}.tool-info{margin:10px 0;padding:8px;border-radius:8px;background:#eff6ff;border:1px solid #bfdbfe;color:#1e3a8a;font-size:12px;line-height:1.5}.tips,.muted{font-size:12px;line-height:1.65;color:#64748b;white-space:pre-wrap}.services-card p{margin:0;color:#475569;font-size:12px;line-height:1.75}.service-actions{display:flex;gap:8px;margin-top:10px}.service-actions a{flex:1;text-align:center;text-decoration:none;background:#0f766e;color:#fff;border-radius:8px;padding:9px 8px;font-size:12px;font-weight:700}.service-actions a:first-child{background:#2563eb}.root-item{padding:8px;margin-top:7px;border:1px solid #e2e8f0;border-radius:8px;font-size:11px;word-break:break-all;background:#f8fafc;white-space:pre-wrap}.root-item.loading{border-color:#f59e0b}.root-item.done{border-color:#10b981}.root-item.error{border-color:#ef4444;color:#991b1b}main{grid-row:2;position:relative;background:linear-gradient(#dbeafe,#f8fafc 62%,#e2e8f0)}#glcanvas{display:block;width:100%;height:100%;cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none}#glcanvas.tool-measure{cursor:crosshair}#glcanvas.tool-mark{cursor:copy}.overlay-svg{position:absolute;left:0;top:0;width:100%;height:100%;pointer-events:none;overflow:visible}.ov-point{fill:#f97316;stroke:#fff;stroke-width:2}.ov-point.measure{fill:#2563eb}.ov-point.mark{fill:#16a34a}.ov-line{stroke:#2563eb;stroke-width:2.5;stroke-dasharray:5 4}.ov-label,.ov-note{font:700 13px "Microsoft YaHei UI","Microsoft YaHei",Arial,sans-serif;fill:#0f172a;paint-order:stroke;stroke:#fff;stroke-width:4px;stroke-linejoin:round}.ov-note{fill:#065f46}#glcanvas:active{cursor:grabbing}#centerMsg{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);padding:13px 17px;background:#fffffff0;border:1px solid #dbe3ee;border-radius:10px;color:#475569;pointer-events:none;box-shadow:0 6px 25px #0001}#stats{position:absolute;right:14px;bottom:14px;background:#0f172ad9;color:#fff;padding:7px 10px;border-radius:8px;font-size:12px}#progress{display:none;position:absolute;left:18px;right:18px;top:14px;height:46px;background:#fffffff2;border-radius:9px;border:1px solid #dbe3ee;overflow:hidden;box-shadow:0 3px 18px #0001;z-index:12}#progressBar{position:absolute;left:0;top:0;bottom:0;width:0;background:linear-gradient(90deg,#bfdbfe,#dbeafe,#93c5fd,#dbeafe);background-size:56px 100%;animation:progressRun 1.05s linear infinite;transition:width .25s ease}#progressCopy{position:relative;height:100%;display:flex;flex-direction:column;justify-content:center;gap:2px;padding:0 118px 0 12px;min-width:0;box-sizing:border-box}#progressText,#progressDetail{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#334155}#progressText{font-size:12px;font-weight:700}#progressDetail{font-size:10px;color:#64748b}.progress-cancel{display:none;position:absolute;right:6px;top:6px;bottom:6px;z-index:20;min-width:92px;align-items:center;justify-content:center;border:1px solid #ef4444;background:#fff;color:#b91c1c;border-radius:7px;padding:0 12px;font-size:12px;font-weight:800;cursor:pointer;box-shadow:0 1px 4px #0001}.progress-cancel:hover{background:#fee2e2;color:#7f1d1d}
@keyframes progressRun{from{background-position:0 0}to{background-position:56px 0}}.axis-hud{position:absolute;left:16px;bottom:16px;width:82px;height:82px;border-radius:12px;background:#ffffffdd;border:1px solid #dbe3ee;box-shadow:0 5px 22px #0002;color:#0f172a;font-size:12px;pointer-events:none}.axis-hud:before{content:"";position:absolute;left:40px;bottom:16px;width:2px;height:42px;background:#ef4444;transform:rotate(-42deg);transform-origin:bottom}.axis-hud:after{content:"";position:absolute;left:40px;bottom:16px;width:2px;height:45px;background:#2563eb}.axis-hud b{position:absolute;left:47px;top:6px;color:#2563eb}.axis-x{position:absolute;right:8px;bottom:31px;color:#ef4444}.axis-y{position:absolute;left:12px;bottom:4px;color:#16a34a}.axis-hud.hidden,.hidden{display:none!important}.noscript-seo{padding:30px;max-width:900px;margin:auto;background:#fff}.noscript-seo h2{font-size:24px}@media(max-width:1280px){.service-copy{display:none}.contact-links{gap:5px}.cta{padding:6px 8px}.brand{font-size:18px}}@media(max-width:900px){#app{grid-template-columns:300px 1fr;grid-template-rows:96px 1fr}.header-top{height:52px}.header-tools{height:44px}.brand{font-size:16px}.contact-links .support{display:none}}

.small-label{display:block;margin:12px 0 6px;color:#334155;font-weight:700;font-size:13px}
.quality-select{width:100%;border:1px solid #cbd5e1;border-radius:8px;background:#fff;color:#0f172a;padding:9px 10px;font-weight:600;outline:none}
.quality-note{margin-top:7px;color:#64748b;font-size:12px;line-height:1.55}


/* V10.19: desktop/mobile dual UI + open action sheet */
.mobile-bar,.mobile-panel-close{display:none}
.open-choice-sheet{display:none;position:fixed;inset:0;z-index:90;align-items:flex-end;justify-content:center}
.open-choice-sheet.open{display:flex}
.open-choice-backdrop{position:absolute;inset:0;background:#0206178f;backdrop-filter:blur(2px)}
.open-choice-card{position:relative;z-index:2;width:min(440px,calc(100vw - 28px));margin:0 14px 22px;padding:14px;background:#fff;border:1px solid #dbe3ee;border-radius:16px;box-shadow:0 18px 60px #02061755}
.open-choice-title{font-weight:800;font-size:16px;color:#0f172a;padding:3px 2px 12px;text-align:center}
.open-choice-card button{display:block;width:100%;font-size:15px;padding:13px 12px;margin-top:8px}
.open-choice-card .choice-main{background:#2563eb;border-color:#2563eb;color:#fff}
.open-choice-card .choice-cancel{background:#f8fafc;color:#64748b}
.mobile-panel-close{position:sticky;top:0;margin-left:auto;margin-bottom:8px;z-index:3;width:38px;height:38px;border-radius:50%;font-size:25px;line-height:1;padding:0;background:#f1f5f9}

@media(max-width:760px),(pointer:coarse) and (max-width:1024px){
 html,body,#app{height:100%;height:100dvh}
 body{overscroll-behavior:none;background:#dbeafe}
 #app{display:grid;grid-template-columns:1fr;grid-template-rows:58px 1fr;height:100dvh}
 #app.panel-collapsed{grid-template-columns:1fr;grid-template-rows:58px 1fr}
 .site-header{grid-column:1;grid-row:1;height:58px;box-shadow:0 2px 10px #0003}
 .header-top{height:58px;padding:7px 11px;border-bottom:0;gap:8px}
 .brand{font-size:17px;overflow:hidden;text-overflow:ellipsis;max-width:52vw}
 .service-copy,.contact-links,.header-tools{display:none!important}
 main{grid-row:2;grid-column:1;min-width:0;min-height:0;padding-bottom:calc(64px + env(safe-area-inset-bottom));background:linear-gradient(#dbeafe,#f8fafc 72%,#e2e8f0)}
 aside{display:block;position:fixed;z-index:45;left:0;top:58px;bottom:calc(64px + env(safe-area-inset-bottom));width:min(92vw,370px);padding:10px;background:#f8fafcf7;border-right:1px solid #dbe3ee;border-bottom:0;overflow:auto;transform:translateX(-104%);opacity:1;pointer-events:auto;transition:transform .2s ease;box-shadow:8px 0 28px #02061726}
 body.mobile-panel-open aside{transform:translateX(0)}
 #app.panel-collapsed aside{transform:translateX(-104%);opacity:1;pointer-events:auto}
 aside section{padding:12px;margin-bottom:10px;border-radius:11px}
 .mobile-panel-close{display:block}
 .big-open{font-size:15px;min-height:48px}
 .quality-select{min-height:44px;font-size:14px}
 .quality-note{font-size:11px;line-height:1.45}
 .grid2 button{min-height:44px}
 .tips{font-size:11px}
 .mobile-bar{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;left:0;right:0;bottom:0;z-index:60;height:calc(64px + env(safe-area-inset-bottom));padding:5px 5px env(safe-area-inset-bottom);background:#0b1220f5;border-top:1px solid #334155;box-shadow:0 -2px 14px #0003}
 .mobile-bar button{border:0;background:transparent;color:#dbeafe;border-radius:9px;padding:4px 2px;font-size:11px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;min-width:0}
 .mobile-bar button span{font-size:19px;line-height:20px;font-weight:800}
 .mobile-bar button.mobile-primary{background:#2563eb;color:#fff}
 .mobile-bar button.active{background:#047857;color:#fff}
 #centerMsg{max-width:78vw;text-align:center;font-size:13px;padding:11px 13px}
 #stats{right:8px;bottom:calc(72px + env(safe-area-inset-bottom));font-size:10px;padding:5px 7px}
 #progress{left:8px;right:8px;top:8px;height:50px}
 #progressCopy{padding-left:10px;padding-right:98px}
 #progressText{font-size:10px}
 #progressDetail{font-size:9px}
 .progress-cancel{right:4px;top:5px;bottom:5px;min-width:82px;padding:0 9px;font-size:11px}
 .axis-hud{left:8px;bottom:calc(72px + env(safe-area-inset-bottom));transform:scale(.78);transform-origin:left bottom}
 .open-choice-card{margin-bottom:calc(76px + env(safe-area-inset-bottom));border-radius:18px}
 .open-choice-card button{min-height:48px}
 .root-item{font-size:10px}
}


/* V10.20: desktop direct open buttons + faster progressive first paint */
.desktop-open-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.desktop-open-actions .big-open{min-width:0;padding-left:7px;padding-right:7px}
.mobile-combined-open{display:none}
.header-tools .open-single-top{background:#0f766e;border-color:#0d9488;color:#fff}
@media(max-width:760px),(pointer:coarse) and (max-width:1024px){
 .desktop-open-actions{display:none}
 .mobile-combined-open{display:block}
}