:root{color-scheme:dark;--bg:#090d12;--panel:rgba(18,25,34,.88);--panel-2:#121a24;--line:rgba(255,255,255,.11);--text:#eef4fb;--muted:#8d9bab;--accent:#68e2c2;--accent-2:#42a5f5}*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;overflow:hidden}body{background:radial-gradient(circle at 15% 10%,rgba(66,165,245,.11),transparent 28%),radial-gradient(circle at 85% 80%,rgba(104,226,194,.08),transparent 26%),var(--bg);color:var(--text);font:14px Inter,Noto Sans TC,Microsoft JhengHei,system-ui,sans-serif}.app{display:grid;grid-template-rows:68px 1fr;width:100%;height:100%;transition:grid-template-rows .18s}header{z-index:10;display:flex;align-items:center;justify-content:space-between;padding:0 22px;border-bottom:1px solid var(--line);background:#090d12bf;backdrop-filter:blur(16px);transition:opacity .18s,transform .18s}.brand{display:flex;align-items:center;gap:12px;min-width:0}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:11px;color:#07120f;background:linear-gradient(135deg,var(--accent),#a4f6df);box-shadow:0 0 30px #68e2c22e;font-size:11px;font-weight:800}.brand h1{margin:0;font-size:16px;letter-spacing:.02em}.brand p{margin:2px 0 0;color:var(--muted);font-size:11px}.header-actions{display:flex;align-items:center;gap:9px}.button,.quality-control,.tool{font:inherit}.button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:38px;padding:0 14px;border:1px solid var(--line);border-radius:10px;color:var(--text);background:#ffffff0b;cursor:pointer;transition:.15s}.button:hover,.tool:hover{border-color:#68e2c273;background:#68e2c214}.button.primary{border:0;color:#06130f;font-weight:700;background:var(--accent)}.quality-control{display:flex;align-items:center;gap:7px;height:38px;padding:0 8px 0 11px;border:1px solid var(--line);border-radius:10px;color:var(--muted);background:#ffffff0a;font-size:11px}.quality-control select{max-width:108px;border:0;outline:0;color:var(--text);background:var(--panel-2);cursor:pointer}main{position:relative;min-height:0}#viewer{position:absolute;inset:0}canvas{display:block;width:100%;height:100%;outline:none;touch-action:none}.toolbar{position:absolute;z-index:4;top:18px;left:50%;transform:translate(-50%);display:flex;gap:4px;padding:5px;border:1px solid var(--line);border-radius:12px;background:var(--panel);backdrop-filter:blur(15px);box-shadow:0 12px 35px #00000038;transition:opacity .18s,transform .18s}.toolbar i{width:1px;margin:5px 2px;background:var(--line)}.tool{display:grid;place-items:center;width:38px;height:34px;padding:0;border:0;border-radius:8px;color:var(--muted);background:transparent;cursor:pointer;transition:.15s}.tool.active{color:var(--accent);background:#ffffff14}.tool svg,.ui-peek svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.drop-zone{position:absolute;z-index:5;inset:50% auto auto 50%;width:min(520px,calc(100% - 38px));padding:42px 26px;transform:translate(-50%,-50%);border:1px dashed rgba(104,226,194,.38);border-radius:20px;background:#10171f9e;text-align:center;backdrop-filter:blur(10px);transition:.2s}.drop-zone.compact{pointer-events:none;opacity:0;transform:translate(-50%,-48%)}.drop-zone.dragging{border-color:var(--accent);background:#68e2c217;transform:translate(-50%,-50%) scale(1.015)}.upload-orbit{display:grid;place-items:center;width:70px;height:70px;margin:0 auto 18px;border:1px solid rgba(104,226,194,.25);border-radius:50%;color:var(--accent);background:#68e2c214;font-size:28px}.drop-zone h2{margin:0 0 8px;font-size:21px}.drop-zone p,.drop-zone small{color:var(--muted);line-height:1.65}.drop-zone .button{margin:14px 0 3px}.info-card,.privacy-note{position:absolute;z-index:4;border:1px solid var(--line);background:var(--panel);backdrop-filter:blur(15px);box-shadow:0 12px 40px #00000038;transition:opacity .18s,transform .18s}.info-card{left:18px;bottom:18px;width:min(310px,calc(100% - 36px));padding:15px;border-radius:14px}.hidden{pointer-events:none!important;opacity:0!important;transform:translateY(8px)!important}.file-name{overflow:hidden;font-size:13px;font-weight:650;text-overflow:ellipsis;white-space:nowrap}.file-state{margin-top:2px;color:var(--muted);font-size:11px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:13px;padding-top:13px;border-top:1px solid var(--line)}.stats span{display:block;color:var(--muted);font-size:10px;text-transform:uppercase}.stats strong{display:block;overflow:hidden;margin-top:4px;font-size:12px;text-overflow:ellipsis}.privacy-note{right:18px;bottom:18px;padding:10px 12px;border-radius:10px;color:var(--muted);background:#0c1117b8;font-size:11px}.loading{position:absolute;z-index:20;inset:0;display:grid;place-items:center;background:#070a0e8a;backdrop-filter:blur(5px);transition:.2s}.loading.hidden{pointer-events:none;opacity:0}.loading-box{width:min(330px,calc(100% - 38px));text-align:center}.loader{width:34px;height:34px;margin:0 auto 15px;border:2px solid rgba(255,255,255,.13);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}.loading-box p{margin:6px 0;color:var(--muted);font-size:11px}.progress{height:3px;overflow:hidden;border-radius:3px;background:#ffffff14}.progress i{display:block;width:38%;height:100%;background:var(--accent);animation:progress 1.3s ease-in-out infinite}.toast{position:absolute;z-index:30;top:18px;right:18px;max-width:min(390px,calc(100% - 36px));padding:12px 15px;border:1px solid rgba(255,123,135,.38);border-radius:11px;color:#ffd7db;background:#47181ff0;box-shadow:0 12px 35px #0000004d;opacity:0;transform:translateY(-8px);pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:none}.ui-peek{position:absolute;z-index:30;top:13px;right:13px;display:none;width:42px;height:42px;padding:0;border:1px solid var(--line);border-radius:12px;color:var(--accent);background:var(--panel);box-shadow:0 10px 30px #00000047;backdrop-filter:blur(12px);cursor:pointer}body.interacting header,body.interacting .toolbar,body.interacting .info-card,body.interacting .privacy-note,body.interacting .drop-zone,body.ui-hidden header,body.ui-hidden .toolbar,body.ui-hidden .info-card,body.ui-hidden .privacy-note,body.ui-hidden .drop-zone{pointer-events:none;opacity:0}body.interacting header,body.ui-hidden header{transform:translateY(-10px)}body.interacting .toolbar,body.ui-hidden .toolbar{transform:translate(-50%,-8px)}body.interacting .info-card,body.ui-hidden .info-card{transform:translateY(8px)}body.ui-hidden .ui-peek{display:grid;place-items:center}.ui-peek:hover{border-color:var(--accent)}body.ui-hidden .app{grid-template-rows:0 1fr}@keyframes spin{to{transform:rotate(360deg)}}@keyframes progress{0%{transform:translate(-110%)}to{transform:translate(270%)}}@media(max-width:620px){.app{grid-template-rows:62px 1fr}header{padding:0 10px}.brand p,.quality-control{display:none}.brand{gap:8px}.brand-mark{width:34px;height:34px}.brand h1{font-size:13px}.header-actions{gap:5px}.button{padding:0 11px}.toolbar{top:10px;max-width:calc(100% - 18px)}.tool{width:36px}.info-card{left:10px;bottom:10px;width:min(300px,calc(100% - 20px));padding:12px}.drop-zone{padding:30px 18px}.drop-zone h2{font-size:18px}.privacy-note{display:none}}@media(max-width:400px){.toolbar{gap:1px}.tool{width:33px}.toolbar i{margin:5px 0}.header-actions .button:not(.primary){display:none}}@media(max-width:620px){.quality-control{display:flex;padding:0 6px}.quality-control>span{display:none}.quality-control select{max-width:92px}}.cancel-load{margin-top:16px;padding:7px 12px;border:1px solid rgba(255,255,255,.2);border-radius:8px;color:var(--text);background:#ffffff0f;cursor:pointer}.brightness-control{position:absolute;z-index:4;top:18px;right:18px;display:flex;align-items:center;gap:9px;padding:9px 11px;border:1px solid var(--line);border-radius:10px;color:var(--muted);background:var(--panel);box-shadow:0 12px 35px #00000038;backdrop-filter:blur(12px);font-size:11px;transition:opacity .18s,transform .18s}.brightness-control input{width:100px;accent-color:var(--accent)}body.interacting .brightness-control,body.ui-hidden .brightness-control{pointer-events:none;opacity:0;transform:translateY(-8px)}@media(max-width:620px){.brightness-control{top:auto;right:10px;bottom:10px}.brightness-control input{width:78px}}body.light-workspace{color-scheme:light;--bg: #e8eef3;--panel: rgba(255, 255, 255, .86);--panel-2: #f7fafc;--line: rgba(36, 56, 72, .16);--text: #152331;--muted: #607282;--accent: #1b9a7c;background:radial-gradient(circle at 12% 7%,rgba(66,165,245,.14),transparent 30%),radial-gradient(circle at 88% 82%,rgba(43,178,142,.11),transparent 28%),var(--bg)}body.light-workspace header{background:#f7fafcd1}body.light-workspace .brand-mark{color:#fff;background:linear-gradient(135deg,#1b9a7c,#59c99f);box-shadow:0 0 25px #1b9a7c2e}body.light-workspace .button,body.light-workspace .quality-control{background:#ffffffb3}body.light-workspace .button.primary{color:#fff;background:#1b9a7c}body.light-workspace .quality-control select{color:var(--text);background:transparent}body.light-workspace .toolbar,body.light-workspace .info-card,body.light-workspace .privacy-note,body.light-workspace .brightness-control{box-shadow:0 12px 35px #1c31401f}body.light-workspace .tool.active{color:#147b65;background:#1b9a7c1f}body.light-workspace .drop-zone{border-color:#1b9a7c73;background:#ffffffbf;box-shadow:0 18px 55px #2b4b5f1f}body.light-workspace .drop-zone.dragging{border-color:#1b9a7c;background:#def8efeb}body.light-workspace .upload-orbit{color:#1b9a7c;border-color:#1b9a7c47;background:#1b9a7c14}body.light-workspace .loading{background:#eaf1f6b8}body.light-workspace .toast{background:#721f2af0}