:root{color-scheme:light;--ink:#172a39;--muted:#647585;--line:#dce3e9;--blue:#1366bc;--canvas:#f3f6f8;--font:-apple-system,BlinkMacSystemFont,'Hiragino Kaku Gothic ProN','Noto Sans JP',sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--canvas);color:var(--ink);font-family:var(--font);line-height:1.65;font-size:14px}button,input,select{font:inherit}button,a,label,input{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.42}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,canvas:focus-visible,summary:focus-visible{outline:3px solid #59a9f6;outline-offset:3px}a{color:var(--blue)}[hidden]{display:none!important}.site-header{height:70px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 max(24px,calc((100vw - 1344px)/2));background:#fff}.brand{font-size:21px;font-weight:850;color:var(--ink);text-decoration:none;letter-spacing:-.6px}.brand span{color:#738695;font-weight:450}.tool-label{font-size:13px;color:var(--muted)}.tool-label small{padding:4px 8px;border:1px solid var(--line);border-radius:4px;margin-left:8px}main{max-width:1392px;margin:auto;padding:36px 24px 64px}.intro{margin:0 0 26px}.eyebrow{font-size:11px;letter-spacing:.1em;color:var(--blue);font-weight:700;margin:0 0 7px}h1{font-size:clamp(25px,3vw,35px);letter-spacing:-.04em;margin:0 0 9px;font-weight:760;line-height:1.35}.intro>p:not(.eyebrow){color:var(--muted);margin:0 0 16px}.mobile-break{display:none}.trust{display:flex;gap:16px;flex-wrap:wrap;font-size:12px;color:#506574}.trust span:before{content:'✓';color:#248076;margin-right:6px}.upload{border:1px dashed #aabcc9;background:#fff;text-align:center;padding:42px 20px;border-radius:12px;transition:background .15s}.upload.dragging{background:#e6f2ff;border-color:var(--blue)}.upload-symbol{font-size:24px;border:1px solid var(--line);border-radius:11px;width:48px;height:48px;line-height:46px;margin:0 auto 14px;color:var(--blue)}h2{font-size:17px;margin:0 0 8px;line-height:1.5}h3{font-size:15px;margin:7px 0}p{margin:0 0 12px}.upload p{color:var(--muted)}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:7px;border:1px solid transparent;padding:11px 22px;font-weight:650;text-decoration:none;font-size:14px;cursor:pointer}.primary{background:var(--blue);color:#fff}.primary:hover{background:#0c56a3}.file-button{position:relative;margin:5px 0 16px}.file-button input{position:absolute;inset:0;opacity:0;width:100%;cursor:pointer}.small{font-size:11px;line-height:1.7;color:var(--muted);margin:8px 0 0}.notice{padding:12px 16px;border-radius:7px;background:#edf4fc;border:1px solid #c4d8ef;margin:15px 0;color:#264f79}.notice.error{color:#8e2828;background:#fff0ed;border-color:#edc2b9}.file-bar{display:flex;justify-content:space-between;align-items:center;gap:14px;margin:0 0 15px}.file-bar>div{min-width:0}.file-bar strong{display:block;font-size:13px;overflow-wrap:anywhere}.file-bar span{display:block;font-size:12px;color:var(--muted)}.quiet{border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--ink);padding:7px 11px;white-space:nowrap;font-size:12px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 304px;gap:22px;align-items:start}.preview-column{position:sticky;top:22px;min-width:0}.stage{background:#17242e;aspect-ratio:16/9;border-radius:8px;overflow:hidden;position:relative;box-shadow:0 6px 24px #1d354014}.stage canvas{display:block;width:100%;height:100%;object-fit:contain;touch-action:none}.stage svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.stage svg rect{fill:none;stroke:#95d7ed;stroke-width:1.5;vector-effect:non-scaling-stroke;stroke-dasharray:4 3}.stage svg rect.selected{stroke:#fff;stroke-width:2;stroke-dasharray:none}.stage svg text{fill:#fff;font-size:12px;paint-order:stroke;stroke:#1b3348;stroke-width:3px;font-weight:bold}.stage.drawing{cursor:crosshair}#draw-hint{position:absolute;bottom:10px;left:50%;transform:translateX(-50%);background:#172c40e8;border-radius:5px;padding:6px 12px;color:white;white-space:nowrap;font-size:12px}.transport{display:flex;align-items:center;gap:10px;padding:13px 0}.transport button{background:#fff;border:1px solid var(--line);border-radius:6px;min-width:36px;height:32px;color:var(--ink);font-size:12px}.transport span{font-variant-numeric:tabular-nums;font-size:11px;white-space:nowrap}.transport input{min-width:30px;flex:1}input[type=range]{accent-color:var(--blue);cursor:pointer}.preview-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;border-top:1px solid var(--line);padding:11px 0;font-size:12px}.preview-actions button{margin-left:auto}.preview-note{font-size:11px;color:var(--muted);line-height:1.7}.settings{background:#fff;border:1px solid var(--line);border-radius:9px;padding:18px}.section-title{display:flex;justify-content:space-between;align-items:baseline;gap:5px}.section-title h2,.appearance h2,.export-settings h2{font-size:14px}.text-button{border:0;background:none;padding:3px;color:var(--blue);font-size:11px}.preset-label{display:block;font-size:11px;color:var(--muted);margin:7px 0 14px}select{display:block;width:100%;padding:9px 8px;border:1px solid var(--line);border-radius:5px;color:var(--ink);font-size:12px;background:#fff;margin-top:4px}.region-list{display:flex;flex-wrap:wrap;gap:6px}.region-chip{display:flex;align-items:center;gap:4px;padding:5px 7px;background:#f6f8fa;border:1px solid var(--line);border-radius:5px;font-size:11px}.region-chip.active{border-color:#689dc7;background:#edf5ff}.region-chip button{border:0;background:none;font-size:11px;padding:0;color:var(--ink);text-align:left}.region-chip input{margin:0;accent-color:var(--blue)}.region-editor{background:#f6f8fa;padding:10px;margin:12px 0 0;border-radius:6px}.region-head{display:flex;justify-content:space-between;font-size:11px;margin-bottom:7px}.coordinates{display:grid;grid-template-columns:repeat(4,1fr);gap:5px}.coordinates label,.time-range label{font-size:10px;color:var(--muted);min-width:0}.coordinates input,.time-range input{width:100%;margin-top:3px;border:1px solid #cbd7df;border-radius:4px;padding:4px;font-size:11px;background:#fff;color:var(--ink)}.time-range{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:9px}.appearance,.export-settings{border-top:1px solid var(--line);margin-top:17px;padding-top:15px}.segmented{display:flex;background:#eef2f5;padding:3px;border-radius:6px}.segmented label{flex:1;position:relative;text-align:center;font-size:12px;cursor:pointer}.segmented input{position:absolute;opacity:0}.segmented span{display:block;padding:6px 3px;border-radius:4px}.segmented input:checked+span{background:#fff;box-shadow:0 1px 4px #132c4215;color:#0f60a9;font-weight:700}.segmented input:focus-visible+span{outline:2px solid #59a9f6}#strength-row{margin-top:12px}#strength-row label{display:flex;justify-content:space-between;font-size:11px}#strength{width:100%;margin:9px 0 0}.export-specs{font-size:12px;color:#3d5366;display:flex;justify-content:space-between;font-variant-numeric:tabular-nums}.review-confirm{display:flex;gap:6px;align-items:flex-start;font-size:11px;margin:15px 0 10px}.review-confirm input{margin-top:4px;accent-color:var(--blue)}#export{width:100%;font-size:12px;padding:11px 5px}.job,.result{margin-top:22px;border:1px solid #bfd5e5;border-radius:9px;background:#fff;padding:20px}.job>div{display:flex;justify-content:space-between}progress{width:100%;height:9px;accent-color:var(--blue);margin:12px 0}.job p{color:var(--muted);font-size:12px}.result{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.result p{font-size:12px;color:var(--muted)}#result-video{display:block;width:min(100%,720px);max-height:420px;background:#122431}#result .small{width:100%}.guide{border-top:1px solid var(--line);margin-top:42px;padding-top:27px}.guide>h2{font-size:20px}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:34px;margin:23px 0 25px}.step{font-size:11px;font-weight:800;color:#7196b8}.guide p{font-size:12px;color:var(--muted);line-height:1.85}details{border-top:1px solid var(--line);padding:14px 0}summary{cursor:pointer;font-size:12px;font-weight:600}details p{margin:10px 0 0;max-width:950px}footer{border-top:1px solid var(--line);padding:21px 24px;display:flex;justify-content:space-between;font-size:11px;color:var(--muted)}@media(min-width:1550px){main{padding-top:45px}}@media(max-width:1000px){.workspace{grid-template-columns:minmax(0,1fr) 278px;gap:16px}.settings{padding:13px}}@media(max-width:760px){.site-header{height:58px;padding:0 16px}.brand{font-size:18px}main{padding:25px 16px 40px}.intro>p{font-size:12px}.mobile-break{display:block}.trust{gap:6px 12px;font-size:10px}.upload{padding:28px 12px}.upload p{font-size:11px}.workspace{grid-template-columns:1fr;gap:15px}.preview-column{position:relative;top:auto}.settings{padding:16px}.settings .region-list{gap:8px}.region-chip{padding:8px}.coordinates input,.time-range input{font-size:14px;padding:6px}.guide-grid{grid-template-columns:1fr;gap:13px}.guide-grid section{position:relative;padding-left:30px}.step{position:absolute;left:0;top:8px}.guide h3{font-size:14px}.guide{margin-top:28px}.preview-actions{gap:9px;font-size:11px}.file-bar{align-items:flex-start}.file-bar strong{font-size:11px}.file-bar span{font-size:10px}.transport{gap:6px}.result{padding:16px}.result .button{width:100%}}
.media-nav{display:flex;gap:4px;margin:0 0 20px;border-bottom:1px solid var(--line)}.media-nav a{padding:10px 28px;color:var(--muted);text-decoration:none;font-weight:650;border-bottom:3px solid transparent}.media-nav a[aria-current]{color:var(--blue);border-bottom-color:var(--blue)}.screen-choices{display:grid;gap:7px;margin:12px 0}.screen-choices label{display:flex;gap:7px;align-items:center;padding:9px;border:1px solid var(--line);border-radius:6px;font-size:12px;cursor:pointer}.screen-choices label:has(input:checked){background:#edf5ff;border-color:#8fb6d7}.screen-choices input,.self-option input{accent-color:var(--blue)}.self-option{font-size:12px;display:flex;align-items:center;gap:5px;margin-top:16px}.image-regions{margin-top:14px}.image-regions summary span{color:var(--muted);font-weight:400;margin-left:4px}.image-region-row{display:flex;gap:5px;font-size:11px;align-items:center;margin:6px 0}.image-region-row input{accent-color:var(--blue)}.image-region-row button{background:none;border:0;color:var(--ink);font-size:11px;padding:3px 0;text-align:left}.image-regions h3{font-size:11px;margin:13px 0 5px;color:var(--muted)}#image-adjust{padding-bottom:0}.strength-row{margin-top:12px}.strength-row label{display:flex;justify-content:space-between;font-size:11px}.strength-row input{width:100%;margin-top:8px}.draw-hint{position:absolute;bottom:10px;left:50%;transform:translateX(-50%);background:#172c40e8;border-radius:5px;padding:6px 12px;color:white;white-space:nowrap;font-size:12px}#image-overlay rect{stroke:#61c9f0;stroke-dasharray:none}#image-overlay rect.kept{stroke:#fff;stroke-dasharray:4 3;opacity:.7}#image-overlay rect.selected{stroke:#f7dd8e;stroke-width:2}#image-export{width:100%;font-size:12px;padding:11px 5px}#image-result-preview{display:block;max-width:100%;height:auto;border-radius:5px}.image-viewport{overflow:auto;border-radius:8px;max-width:100%}.image-viewport.zoomed{max-height:65vh}.image-viewport .stage{min-width:100%;border-radius:0}.zoom-label{display:flex;gap:5px;align-items:center}.zoom-label select{width:auto;margin:0;padding:3px 6px;font-size:11px}#image-preview{cursor:pointer;touch-action:auto}.drawing #image-preview{touch-action:none;cursor:crosshair}@media(max-width:760px){#image-region-list{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}.image-region-row button{min-height:32px}.image-region-row input{min-width:18px;min-height:18px}.media-nav a{flex:1;text-align:center}.image-viewport.zoomed{max-height:55vh}.screen-choices label{min-height:44px}.preview-actions .zoom-label{font-size:11px}#image-result .button{width:100%}}

#image-result-preview{width:min(100%,720px);max-height:430px;object-fit:contain;object-position:left center}#image-result .small{width:100%}
.quick-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;list-style:none;padding:0;margin:0 0 18px;max-width:670px}.quick-steps li{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600}.quick-steps span{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;color:var(--blue);background:#e5eef8;font-size:12px;flex:none}.privacy-inline{font-size:12px;line-height:1.8;color:var(--muted);margin:14px 0 24px}.privacy-inline a{margin-left:10px;display:inline-block}.device-note{font-size:12px;color:var(--muted);margin:0 0 18px}.file-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;flex-shrink:0}.save-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.save-actions .quiet{min-height:44px}#image-save-help{width:100%}.how-title{margin-top:25px!important}.use-case-copy{max-width:730px}.tool-faq{border-top:1px solid var(--line);margin-top:26px;padding-top:25px}.tool-faq>h2{font-size:18px}.tool-faq details{padding:15px 0}.tool-faq p{font-size:13px;color:var(--muted);line-height:1.85}.tool-faq summary{font-size:13px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.policy-page{max-width:1000px}.policy-page .intro{margin-top:24px}.back-link{font-size:13px}.policy-summary{background:white;border:1px solid var(--line);padding:22px;border-radius:9px}.policy-summary p{margin:0}.policy-page p,.policy-list dd,.policy-points{font-size:14px;line-height:1.9}.policy-page section[id]{border-top:1px solid var(--line);padding-top:26px;margin-top:28px;scroll-margin-top:20px}.policy-page h2{font-size:20px;margin-bottom:14px}.policy-nav{display:flex;flex-wrap:wrap;gap:10px 22px;margin:20px 0;font-size:13px}.policy-list{margin:0}.policy-list>div{display:grid;grid-template-columns:190px 1fr;gap:24px;border-bottom:1px solid var(--line);padding:17px 0}.policy-list dt{font-weight:650;font-size:13px}.policy-list dd{margin:0}.policy-points{padding-left:21px}.policy-points li{padding-left:4px;margin:0 0 15px}.policy-page .small{font-size:12px}.device-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px}.policy-bottom{display:flex;align-items:center;gap:14px;margin-top:32px}.policy-bottom .quiet{text-decoration:none;padding:12px}footer{gap:14px;flex-wrap:wrap}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}@media(max-width:760px){body{font-size:15px}.quick-steps{gap:6px;margin-bottom:17px}.quick-steps li{font-size:11px;gap:5px}.quick-steps span{width:23px;height:23px;font-size:11px}.privacy-inline{font-size:12px;margin-bottom:18px}.privacy-inline a{margin-left:0}.file-actions{gap:4px;flex-direction:column;align-items:flex-end}.file-actions button,.text-button{min-height:40px}.file-actions .quiet{font-size:12px}.quiet,.transport button,.preview-actions label,.media-nav a{min-height:44px}.preview-actions label{display:flex;align-items:center}.preview-actions input[type=checkbox],.review-confirm input,.self-option input{width:19px;height:19px;flex:none}.settings h2,.section-title h2,.appearance h2,.export-settings h2{font-size:15px}.settings .small,.preview-note,.review-confirm,.self-option,.screen-choices label{font-size:12px}.coordinates input,.time-range input,select{font-size:16px}.segmented span{min-height:44px;display:flex;align-items:center;justify-content:center}.save-actions{width:100%;display:grid;grid-template-columns:1fr}.save-actions>*{width:100%}.region-chip{min-height:40px}.region-chip button{font-size:12px}.region-chip input{width:18px;height:18px}.policy-page h1{font-size:25px}.policy-page h2{font-size:18px}.policy-list>div{grid-template-columns:1fr;gap:6px}.policy-list dt{font-size:14px}.policy-nav a{padding:9px 0}.device-cards{grid-template-columns:1fr;gap:6px}.policy-bottom{align-items:stretch;flex-direction:column}.policy-summary{padding:17px}footer>a{display:inline-flex;align-items:center;min-height:44px}.tool-faq summary{font-size:13px;line-height:1.8}}

/* UX pass 2026-09-29 */
.tool-label small{padding:1px 6px;font-size:10px;color:#8593a0;border-color:#e6ebef;margin-left:6px}
.trust-line{display:flex;align-items:center;justify-content:center;gap:7px;margin:0 0 6px!important;font-size:13px;font-weight:600;color:#1f6f66!important}
.trust-line svg{flex:none;color:#248076}
.upload .device-note{margin:6px 0 0;font-size:11px}
.privacy-inline{margin:8px 0 14px;font-size:11px;text-align:right}.privacy-inline a{margin:0;color:var(--muted)}
.info-block{border-top:1px solid var(--line);padding:10px 0}.info-block summary{font-size:12px;color:var(--muted);font-weight:500}
.info-block ol,.info-block ul{margin:8px 0 0;padding-left:20px;font-size:11px;line-height:1.85;color:var(--muted);max-width:760px}
.info-block .spec-note{font-size:11px;line-height:1.85;color:var(--muted);margin:8px 0 0}
.info-block+.info-block{margin-bottom:6px}
.tool-faq{margin-top:18px;padding-top:14px}.tool-faq>h2{font-size:13px;color:var(--muted);font-weight:600;margin:0}.tool-faq details{padding:9px 0}.tool-faq summary{font-size:12px;font-weight:500}.tool-faq p{font-size:12px}
footer a{color:var(--muted)}
.policy-page .plain-summary{font-size:16px;color:var(--ink)!important;font-weight:600;margin:0 0 6px}.policy-page .meta{font-size:11px;color:var(--muted)}
.policy-page p,.policy-list dd,.policy-points{font-size:14px;line-height:1.85}
.policy-page h2{font-size:16px;margin-bottom:10px}.policy-page h3{font-size:14px}.policy-page h1{font-size:22px}
.policy-page section[id]{padding-top:18px;margin-top:20px}
.policy-list dt{font-size:13px;font-weight:600}.policy-nav{font-size:12px}

.footer-legal{flex:0 0 100%;margin:0;font-size:11px;line-height:1.7}