:root{--navy:#0b1930;--blue:#1769e0;--pale:#f5f7fa;--border:#dfe5ec;--muted:#667085;--green:#157f55;--red:#b42318}
*{box-sizing:border-box}body{margin:0;color:var(--navy);font:15px/1.55 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;background:white}a{color:inherit;text-decoration:none}
.site-header{height:76px;max-width:1200px;margin:auto;display:flex;align-items:center;padding:0 28px;border-bottom:1px solid var(--border);gap:44px}.brand{font-size:21px;font-weight:800;letter-spacing:-.5px}.brand span{display:inline-grid;place-items:center;background:var(--blue);color:white;border-radius:8px;width:30px;height:30px;margin-right:7px}.site-header nav{display:flex;gap:28px;margin-left:auto}.site-header nav a:hover{color:var(--blue)}.muted{color:#98a2b3}.language{border:1px solid var(--border);background:white;border-radius:8px;padding:7px 10px}
.hero{text-align:center;max-width:880px;margin:74px auto 40px;padding:0 24px}.eyebrow{font-size:12px;font-weight:800;letter-spacing:1.8px;color:var(--blue)}h1{font-size:52px;line-height:1.08;letter-spacing:-2.8px;margin:16px 0}h1 span{color:#667085}.hero p,.lead{font-size:19px;color:var(--muted)}
.format-count-highlight{display:inline-flex;align-items:center;gap:9px;margin-top:16px;padding:7px 13px;border:1px solid #cfe0ff;border-radius:99px;background:#f5f9ff;color:var(--blue)}.format-count-highlight strong{font-size:17px}.format-count-highlight span{font-size:13px;font-weight:700}
.converter{max-width:1080px;margin:auto;padding:0 24px}.dropzone{border:1.5px dashed #aab6c5;border-radius:18px;padding:47px;text-align:center;background:#fbfcfd;transition:.2s}.dropzone:hover,.dropzone.dragging{border-color:var(--blue);background:#f4f8ff;transform:translateY(-1px)}.upload-icon{width:52px;height:52px;border-radius:14px;background:#eaf2ff;color:var(--blue);display:grid;place-items:center;font-size:28px;margin:0 auto 17px}.dropzone strong{font-size:20px}.dropzone p{color:var(--muted);margin:6px}.dropzone small{display:block;color:var(--muted);margin-top:16px}.primary,.convert-button{background:var(--blue);color:white;border:0;border-radius:9px;padding:11px 18px;font-weight:700;cursor:pointer;display:inline-block}.secondary,.icon-button{background:white;border:1px solid var(--border);border-radius:9px;padding:9px 13px;cursor:pointer}
.workspace{margin-top:26px;border:1px solid var(--border);border-radius:15px;overflow:hidden;box-shadow:0 8px 30px #102a4310}.workspace-head{display:flex;align-items:center;justify-content:space-between;padding:20px 22px}.workspace-head-actions{display:flex;gap:8px}.workspace-head-actions #clearFiles:hover{color:var(--red);border-color:#f0b7ae}.workspace h2{margin:0;font-size:20px}.workspace-head p{margin:2px 0;color:var(--muted)}.table-wrap{overflow-x:hidden;overflow-y:visible}table{width:100%;border-collapse:collapse;white-space:nowrap}th{background:var(--pale);text-align:left;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}th,td{padding:13px;border-top:1px solid var(--border)}.workspace table{table-layout:fixed;font-size:12px}.workspace th,.workspace td{padding:9px 7px;overflow:hidden;text-overflow:ellipsis}.workspace th:nth-child(1){width:22%}.workspace th:nth-child(2){width:10%}.workspace th:nth-child(3){width:7%}.workspace th:nth-child(4){width:13%}.workspace th:nth-child(5){width:8%}.workspace th:nth-child(6){width:14%}.workspace th:nth-child(7){width:10%}.workspace th:nth-child(8){width:16%}.workspace td select{box-sizing:border-box;width:100%;min-width:0;padding:6px 5px;font-size:12px}.workspace .file-cell{min-width:0;max-width:100%;gap:7px}.workspace .file-cell>div{min-width:0}.workspace .file-icon{width:27px;height:31px;flex:0 0 27px}.workspace .progress{gap:5px}.workspace .bar{width:min(52px,55%)}.workspace .status{padding:3px 6px}.workspace .convert-button,.workspace .icon-button{padding:6px 8px;border-radius:7px;font-size:11px}.file-cell{display:flex;align-items:center;gap:10px;max-width:260px}.file-cell strong,.file-cell small{display:block;overflow:hidden;text-overflow:ellipsis}.file-cell small{color:var(--muted)}.file-icon{width:34px;height:38px;border-radius:7px;background:#eef4ff;display:grid;place-items:center;color:var(--blue)}select{padding:8px;border:1px solid var(--border);border-radius:8px;background:white}.progress{display:flex;align-items:center;gap:8px}.bar{width:80px;height:6px;background:#e8edf2;border-radius:5px;overflow:hidden}.bar span{display:block;height:100%;background:var(--blue);transition:.2s}.percent{font-size:12px}.status{font-size:12px;border-radius:99px;padding:4px 8px;background:#eef2f6}.status.ready,.status.completed{color:var(--green);background:#eaf8f1}.status.failed,.error{color:var(--red);background:#fff0ee}.status.processing,.status.uploading{color:var(--blue);background:#eaf2ff}
.bulk-strip{background:linear-gradient(#eef4ff,#eef4ff) padding-box;border-top:1px solid var(--border);border-bottom:1px solid #d8e6ff;padding:14px 22px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;animation:bulk-strip-in .2s ease}
.bulk-strip-info{display:flex;align-items:center;gap:12px}
.bulk-strip-icon{width:34px;height:34px;border-radius:9px;background:var(--blue);color:white;display:grid;place-items:center;font-size:17px;flex-shrink:0}
.bulk-strip-info strong{display:block;font-size:14px}
.bulk-strip-info small{display:block;color:var(--muted);font-size:12.5px;margin-top:1px}
.bulk-strip-controls{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.bulk-strip select{padding:9px 12px}
.bulk-strip .primary:disabled{opacity:.5;cursor:not-allowed}
.bulk-progress{display:none;align-items:center;gap:8px;color:var(--muted);font-size:13px;font-weight:700}
.bulk-progress .bar{width:90px}
.bulk-strip .primary.bulk-download{display:none;background:#0e9f63}
@keyframes bulk-strip-in{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:640px){.bulk-strip{padding:14px}.bulk-strip-controls{width:100%;justify-content:stretch}.bulk-strip-controls select{flex:1}.bulk-strip-controls .bulk-download{width:100%}}
.trust{max-width:1080px;margin:70px auto;display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding:0 24px}.trust article,.format-grid article,.stat-grid article{padding:26px;border:1px solid var(--border);border-radius:14px}.trust b{color:var(--blue);font-size:22px}.trust h3{margin:12px 0 4px}.trust p{color:var(--muted);margin:0}footer{border-top:1px solid var(--border);padding:35px max(24px,calc((100% - 1080px)/2));display:flex;justify-content:space-between;color:var(--muted)}
.control-center-link{font-weight:700;color:var(--blue)}
.version-tag{color:var(--muted);font-size:12px;font-weight:400;margin-left:6px}
.footer-stats{display:flex;gap:32px;font-size:13px}
.footer-stat-label{display:block;font-weight:700;color:var(--navy)}
.page{max-width:1080px;margin:64px auto;padding:0 24px}.page>h1{font-size:46px}.format-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:36px}.chips{display:flex;flex-wrap:wrap;gap:8px}.chips span{padding:6px 9px;background:var(--pale);border-radius:6px;font-size:12px;font-weight:700}.prose{max-width:760px}.prose p{font-size:17px;color:var(--muted)}.auth-card{max-width:420px;margin:80px auto;padding:32px;border:1px solid var(--border);border-radius:16px}.auth-card h1{font-size:38px}.auth-card label{display:block;font-weight:700;margin:16px 0}.auth-card input{display:block;width:100%;padding:11px;border:1px solid var(--border);border-radius:8px;margin-top:6px}.stat-grid{display:flex;gap:18px}.stat-grid article{min-width:200px}.stat-grid span,.stat-grid strong{display:block}.stat-grid strong{font-size:32px}
.icon-button.preview{color:var(--blue);font-size:15px}
#fileRows td:last-child{display:flex;align-items:center;gap:4px;min-width:0}
dialog{border:0;border-radius:16px;box-shadow:0 30px 80px #0004;max-width:90vw;padding:0;background:white}
dialog::backdrop{background:#0b193099}
.dialog-close{position:absolute;top:8px;right:10px;border:0;background:none;font-size:26px;color:var(--muted);cursor:pointer;z-index:1;line-height:1;padding:6px}
.dialog-close:hover{color:var(--navy)}
#previewBody{position:relative;min-width:280px;min-height:120px;max-width:86vw;max-height:86vh;display:flex;align-items:center;justify-content:center;padding:20px}
#previewBody img,#previewBody video{max-width:84vw;max-height:80vh;display:block;border-radius:4px}
#previewBody audio{width:min(70vw,520px)}
#previewBody iframe{width:min(86vw,900px);height:80vh;border:0}
.preview-status{color:var(--muted);padding:40px}
.preview-fallback{text-align:center;padding:24px 16px;max-width:320px}
.preview-fallback .file-icon{width:52px;height:52px;font-size:24px;margin:0 auto 14px}
.preview-fallback strong{display:block;font-size:15px;word-break:break-word}
.preview-fallback small{display:block;color:var(--muted);margin-top:4px}
.preview-fallback p{color:var(--muted);margin:14px 0 0}
.text-preview{white-space:pre-wrap;word-break:break-word;padding:16px;margin:0;font:13px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace}
@media(max-width:900px){.workspace th:nth-child(2),.workspace td:nth-child(2),.workspace th:nth-child(5),.workspace td:nth-child(5){display:none}.workspace th:nth-child(1){width:27%}.workspace th:nth-child(3){width:10%}.workspace th:nth-child(4){width:17%}.workspace th:nth-child(6){width:18%}.workspace th:nth-child(7){width:12%}.workspace th:nth-child(8){width:16%}}
@media(max-width:760px){.site-header nav{display:none}.site-header{height:64px}.language{margin-left:auto}h1{font-size:39px;letter-spacing:-1.8px}.hero{margin-top:50px}.dropzone{padding:32px 18px}.trust,.format-grid{grid-template-columns:1fr}.trust{margin-top:42px}footer{display:block}.workspace{border-radius:10px}.workspace th:nth-child(3),.workspace td:nth-child(3),.workspace th:nth-child(6),.workspace td:nth-child(6){display:none}.workspace th:nth-child(1){width:36%}.workspace th:nth-child(4){width:24%}.workspace th:nth-child(7){width:18%}.workspace th:nth-child(8){width:22%}}
.category-icon{display:inline-block;margin-right:4px}
.table-preview{padding:16px;overflow:auto;max-width:86vw;max-height:80vh}
.table-preview-table{border-collapse:collapse;font-size:13px;white-space:nowrap}
.table-preview-table th,.table-preview-table td{border:1px solid var(--border);padding:6px 10px;text-align:left}
.table-preview-table th{background:var(--pale)}
.font-preview{padding:32px;text-align:center;font-family:"PreviewFont",ui-sans-serif,system-ui,sans-serif}
.font-preview-lg{font-size:52px;margin:0 0 18px}
.font-preview-md{font-size:22px;margin:0 0 12px;color:var(--navy)}
.font-preview-sm{font-size:16px;margin:0;color:var(--muted)}
.model-viewer{width:min(84vw,900px);height:min(80vh,640px)}
.model-viewer canvas{width:100%;height:100%;display:block;border-radius:4px}
.formats-page{max-width:1180px}.format-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:34px 0}.format-summary div{display:flex;align-items:baseline;gap:10px;padding:18px 20px;background:var(--pale);border:1px solid var(--border);border-radius:12px}.format-summary strong{font-size:28px;color:var(--blue)}.format-summary span{color:var(--muted);font-weight:700}.format-toolbar{position:sticky;top:0;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 0 24px;padding:12px;background:#fffffff2;border:1px solid var(--border);border-radius:13px;box-shadow:0 8px 24px #102a430c;backdrop-filter:blur(10px)}.format-search{display:flex;align-items:center;gap:9px;flex:1;max-width:520px;padding:0 12px;border:1px solid var(--border);border-radius:9px;background:white}.format-search:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px #1769e014}.format-search span{font-size:22px;color:var(--muted)}.format-search input{width:100%;border:0;outline:0;padding:10px 0;background:transparent;font:inherit}.format-filters{display:flex;gap:6px}.format-filters button{border:1px solid transparent;border-radius:8px;padding:8px 11px;background:transparent;color:var(--muted);font-weight:700;cursor:pointer}.format-filters button:hover{background:var(--pale)}.format-filters button.active{background:var(--blue);color:white}.format-catalog{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;align-items:start}.format-category{border:1px solid var(--border);border-radius:14px;overflow:hidden;background:white}.format-category>header{display:flex;align-items:center;gap:12px;padding:17px 18px;background:var(--pale);border-bottom:1px solid var(--border)}.format-category h2{font-size:18px;margin:0}.format-category header small{display:block;color:var(--muted);margin-top:1px}.format-category-icon{width:38px;height:38px;display:grid;place-items:center;flex:0 0 38px;border-radius:10px;background:white;border:1px solid var(--border);color:var(--blue);font-size:14px;font-weight:800}.format-list{padding:5px 13px}.format-item{display:grid;grid-template-columns:58px minmax(0,1fr) auto;align-items:center;gap:11px;min-height:62px;padding:9px 3px;border-bottom:1px solid #edf0f4}.format-item:last-child{border-bottom:0}.format-extension{overflow:hidden;text-overflow:ellipsis;padding:5px 6px;border-radius:6px;background:#eaf2ff;color:var(--blue);font:700 11px/1.2 ui-monospace,SFMono-Regular,Consolas,monospace;text-align:center}.format-info{min-width:0}.format-info strong,.format-info small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.format-info small{color:var(--muted);font-size:11px}.format-badges{display:flex;justify-content:flex-end;gap:4px;flex-wrap:wrap}.format-badges span{padding:3px 6px;border-radius:99px;font-size:9px;font-weight:800;text-transform:uppercase;letter-spacing:.25px}.format-badges .input{color:#175cd3;background:#eff8ff}.format-badges .output{color:var(--green);background:#ecfdf3}.format-badges .quality{color:#93370d;background:#fff4e5}.format-empty{text-align:center;padding:50px;color:var(--muted);border:1px dashed var(--border);border-radius:14px}
@media(max-width:800px){.format-catalog{grid-template-columns:1fr}.format-toolbar{position:static;align-items:stretch;flex-direction:column}.format-search{max-width:none}.format-filters{overflow:auto}.format-summary{grid-template-columns:1fr}.format-summary div{padding:12px 16px}.format-item{grid-template-columns:52px minmax(0,1fr)}.format-badges{grid-column:2;justify-content:flex-start;margin-top:-6px;padding-bottom:3px}}
.format-item:hover{color:var(--blue);background:#f9fbff}.format-guides{margin-top:80px}.format-guides-heading{max-width:720px;margin-bottom:28px}.format-guides-heading h2{font-size:34px;margin:10px 0}.format-guides-heading>p:last-child{color:var(--muted);font-size:17px}.format-guide{scroll-margin-top:92px;margin:0 0 18px;padding:25px;border:1px solid var(--border);border-radius:15px;background:white}.format-guide:target{border-color:var(--blue);box-shadow:0 0 0 4px #1769e012}.format-guide>header{display:flex;align-items:center;gap:14px}.format-guide-extension{display:grid;place-items:center;min-width:64px;height:46px;padding:0 9px;border-radius:10px;background:#eaf2ff;color:var(--blue);font:800 13px ui-monospace,SFMono-Regular,Consolas,monospace}.format-guide-category{margin:0;color:var(--blue);font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.7px}.format-guide h3{margin:2px 0 0;font-size:22px}.format-guide-copy{max-width:920px;margin-top:17px}.format-guide-copy p{margin:9px 0;color:#475467}.format-guide-footer{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:20px;padding-top:17px;border-top:1px solid #edf0f4}.format-guide-footer .format-badges{justify-content:flex-start}.format-guide-footer .primary{padding:9px 14px;font-size:13px}
@media(max-width:800px){.format-guide{padding:19px}.format-guide h3{font-size:18px}.format-guide-footer{align-items:stretch;flex-direction:column}.format-guide-footer .format-badges{grid-column:auto;margin:0;padding:0}.format-guide-footer .primary{text-align:center}}
.format-detail-page{max-width:1180px;margin:48px auto 80px;padding:0 24px}.format-breadcrumb{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}.format-breadcrumb a:hover{color:var(--blue)}.format-detail-hero{display:flex;align-items:center;justify-content:space-between;gap:30px;margin:26px 0 36px;padding:34px;border:1px solid var(--border);border-radius:18px;background:linear-gradient(135deg,#f7faff,#fff)}.format-detail-title{display:flex;align-items:center;gap:22px;min-width:0}.format-detail-extension{display:grid;place-items:center;min-width:92px;height:92px;padding:8px;border-radius:20px;background:var(--blue);color:white;font:800 17px ui-monospace,SFMono-Regular,Consolas,monospace;box-shadow:0 12px 25px #1769e02c}.format-detail-hero h1{font-size:42px;letter-spacing:-1.8px;margin:7px 0 10px}.format-detail-hero p:last-child{max-width:760px;margin:0;color:var(--muted);font-size:17px}.format-hero-cta{flex:0 0 auto}.format-detail-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:42px;align-items:start}.format-detail-sidebar{position:sticky;top:20px}.format-fact-card,.format-page-toc{padding:18px;border:1px solid var(--border);border-radius:13px}.format-fact-card h2,.format-page-toc h2{font-size:15px;margin:0 0 12px}.format-fact-card dl{margin:0}.format-fact-card dl div{padding:9px 0;border-top:1px solid #edf0f4}.format-fact-card dt{color:var(--muted);font-size:11px;text-transform:uppercase;font-weight:800}.format-fact-card dd{margin:2px 0 0;overflow-wrap:anywhere;font-weight:700}.format-page-toc{margin-top:14px}.format-page-toc a{display:block;padding:5px 0;color:var(--muted);font-size:12px}.format-page-toc a:hover{color:var(--blue)}.format-detail-content{min-width:0}.format-detail-content>section{scroll-margin-top:24px;margin-bottom:37px}.format-detail-content h2{font-size:28px;letter-spacing:-.6px;margin:0 0 14px}.format-detail-content p{font-size:16px;line-height:1.75;color:#475467}.format-conversion-section{padding:25px;border:1px solid #cfe0ff;border-radius:15px;background:#f8fbff}.format-output-links{display:flex;flex-wrap:wrap;gap:8px}.format-output-links a{padding:7px 10px;border:1px solid #cfe0ff;border-radius:8px;background:white;color:var(--blue);font-size:12px;font-weight:800}.format-output-links a:hover{border-color:var(--blue)}.format-faq details{border-top:1px solid var(--border);padding:15px 0}.format-faq summary{font-weight:800;cursor:pointer}.format-faq details p{margin-bottom:0}.format-final-cta{text-align:center;padding:38px;border-radius:17px;background:var(--navy);color:white}.format-final-cta h2{color:white}.format-final-cta p{color:#cbd5e1;max-width:680px;margin:0 auto 22px}.format-final-cta .primary{background:white;color:var(--blue)}
@media(max-width:860px){.format-detail-hero{align-items:flex-start;flex-direction:column;padding:24px}.format-detail-title{align-items:flex-start}.format-detail-extension{min-width:66px;height:66px;border-radius:14px;font-size:13px}.format-detail-hero h1{font-size:31px}.format-detail-layout{grid-template-columns:1fr}.format-detail-sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:12px}.format-page-toc{margin:0}.format-hero-cta{width:100%;text-align:center}}@media(max-width:560px){.format-detail-page{padding:0 16px}.format-detail-title{flex-direction:column}.format-detail-sidebar{grid-template-columns:1fr}.format-detail-content h2{font-size:24px}.format-final-cta{padding:27px 18px}}
.conversion-copy{max-width:960px;margin:30px auto 80px;padding:38px 42px;border-top:1px solid var(--border)}.conversion-copy>h2{font-size:34px;letter-spacing:-.8px;margin:10px 0}.conversion-copy-lead{font-size:18px;color:var(--muted);margin:0 0 30px}.conversion-copy section{margin:0 0 25px}.conversion-copy h3{font-size:20px;margin:0 0 7px}.conversion-copy section p{margin:0;color:#475467;font-size:16px;line-height:1.75}.conversion-copy>.primary{margin-top:8px}@media(max-width:640px){.conversion-copy{padding:30px 24px}.conversion-copy>h2{font-size:28px}}