:root{--bg:#fff;--surface:#faf8f5;--surface-2:#f2eee8;--text:#1f1a14;--muted:#6b6259;--line:#e4ddd3;--accent:#c2410c;--accent-hover:#9a3412;--accent-soft:#fff1e8;--on-accent:#fff;--danger:#b91c1c;--success:#15803d;--radius:12px;--font:"Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo, system-ui, sans-serif;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root{--bg:#16130f;--surface:#1e1a15;--surface-2:#29231c;--text:#f3eee8;--muted:#b0a598;--line:#3a3229;--accent:#f97316;--accent-hover:#fb923c;--accent-soft:#2e1d10;--on-accent:#1f1206;--danger:#f87171;--success:#4ade80;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);font-family:var(--font);overflow-wrap:anywhere;margin:0;font-size:16px;line-height:1.8}a{color:var(--accent);text-underline-offset:3px}a:hover{color:var(--accent-hover)}h1,h2,h3{letter-spacing:.01em;line-height:1.4}button,input,select{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.container{width:100%;max-width:1120px;margin:0 auto;padding:0 16px}.skip-link{position:absolute;left:-9999px}.skip-link:focus{z-index:10;background:var(--bg);padding:8px 12px;top:8px;left:16px}.small{font-size:.85rem;line-height:1.6}.muted{color:var(--muted)}.center{text-align:center}.tabular{font-variant-numeric:tabular-nums}.lead{color:var(--muted);max-width:46em;font-size:1.05rem}.site-header{border-bottom:1px solid var(--line);background:var(--bg)}.header-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;min-height:60px;display:flex}.logo{color:var(--text);align-items:center;gap:8px;font-size:1.1rem;font-weight:700;text-decoration:none;display:inline-flex}.logo img{width:auto;height:32px;display:block}@media (min-width:640px){.logo img{height:36px}}.header-nav{gap:16px;font-size:.9rem;display:flex}.header-nav a{color:var(--text);text-decoration:none}.header-nav a:hover{color:var(--accent)}.tool-nav{border-top:1px solid var(--line);background:var(--surface)}.tool-nav-inner{scrollbar-width:none;gap:4px;display:flex;overflow-x:auto}.tool-nav a{white-space:nowrap;color:var(--muted);padding:8px 10px;font-size:.85rem;text-decoration:none}.tool-nav a:hover{color:var(--accent)}.site-footer{border-top:1px solid var(--line);background:var(--surface);margin-top:64px;padding:40px 0 24px}.footer-grid{grid-template-columns:1fr;gap:24px;display:grid}@media (min-width:720px){.footer-grid{grid-template-columns:2fr 1fr 1fr}}.footer-brand{margin:0 0 4px;font-weight:700}.footer-title{margin:0 0 8px;font-size:.9rem;font-weight:700}.site-footer ul{margin:0;padding:0;font-size:.9rem;list-style:none}.site-footer li+li{margin-top:4px}.site-footer a{color:var(--text);text-decoration:none}.site-footer a:hover{color:var(--accent)}.footer-bottom{margin-top:32px}.breadcrumb ol{color:var(--muted);flex-wrap:wrap;margin:0 0 8px;padding:0;font-size:.8rem;list-style:none;display:flex}.breadcrumb li+li:before{content:"›";margin:0 8px}.breadcrumb a{color:var(--muted)}.home-hero,.tool-hero{background:linear-gradient(180deg, var(--accent-soft), var(--bg));padding:40px 0 24px}.home-hero h1{margin:4px 0 12px;font-size:clamp(1.6rem,4.5vw,2.4rem)}.tool-hero{padding:24px 0 16px}.tool-hero h1{margin:0 0 8px;font-size:clamp(1.5rem,4vw,2.1rem)}.kicker{color:var(--accent);margin:0;font-size:.85rem;font-weight:700}.points{flex-wrap:wrap;gap:8px 20px;margin:16px 0 0;padding:0;font-size:.9rem;list-style:none;display:flex}.points li:before{content:"✓ ";color:var(--success);font-weight:700}.home-section{margin-top:48px}.home-section h2{margin:0 0 4px;font-size:1.4rem}.tool-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,240px),1fr));gap:12px;margin:16px 0 0;padding:0;list-style:none;display:grid}.tool-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--bg);height:100%;color:var(--text);flex-direction:column;gap:6px;padding:16px;text-decoration:none;transition:border-color .15s,transform .15s;display:flex}.tool-card:hover{border-color:var(--accent);color:var(--text);transform:translateY(-1px)}.tool-card strong{font-size:1.05rem}.tool-card span{color:var(--muted);font-size:.875rem;line-height:1.6}.tool-card em{color:var(--accent);margin-top:auto;font-size:.875rem;font-style:normal;font-weight:700}.cards{grid-template-columns:repeat(auto-fill,minmax(min(100%,220px),1fr));gap:12px;margin:16px 0;padding:0;list-style:none;display:grid}.cards li{border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);padding:16px}.cards p{color:var(--muted);margin:4px 0 0;font-size:.9rem;line-height:1.7}.tool-section{margin-top:8px}.workspace{border:1px solid var(--line);background:var(--surface);border-radius:16px;padding:16px}.workspace-grid{grid-template-columns:1fr;gap:16px;display:grid}@media (min-width:880px){.workspace-grid{grid-template-columns:minmax(0,1fr) 320px}}.workspace-main{flex-direction:column;gap:12px;min-width:0;display:flex}.workspace-side{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);flex-direction:column;align-self:start;gap:12px;padding:16px;display:flex}.side-title{margin:0;font-size:1rem}.dropzone{border:2px dashed var(--line);border-radius:var(--radius);background:var(--bg);text-align:center;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:8px;min-height:240px;padding:24px 16px;transition:border-color .15s,background .15s;display:flex}.dropzone:hover,.dropzone.is-over{border-color:var(--accent);background:var(--accent-soft)}.dropzone.is-compact{border-width:1px;min-height:0;padding:12px}.dropzone-icon{fill:none;width:40px;height:40px;stroke:var(--accent);stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round}.dropzone-title{font-weight:700}.dropzone-hint{color:var(--muted);font-size:.85rem}.only-narrow{display:none}@media (hover:none) and (pointer:coarse){.only-wide{display:none}.only-narrow{display:inline}}.button{cursor:pointer;border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;gap:6px;min-height:44px;padding:8px 18px;font-weight:700;text-decoration:none;display:inline-flex}.button:disabled{opacity:.5;cursor:not-allowed}.button-primary{background:var(--accent);color:var(--on-accent)}.button-primary:not(:disabled):hover{background:var(--accent-hover)}.button-secondary{background:var(--bg);border-color:var(--line);color:var(--text)}.button-secondary:hover{border-color:var(--accent)}.button-small{background:var(--accent);min-height:34px;color:var(--on-accent);padding:4px 12px;font-size:.85rem}.button-block{width:100%}.link-button{color:var(--accent);cursor:pointer;background:0 0;border:0;padding:0;font-size:.85rem}.icon-button{border:1px solid var(--line);background:var(--bg);cursor:pointer;border-radius:8px;width:34px;height:34px;font-size:1.1rem;line-height:1}.batch-head{color:var(--muted);justify-content:space-between;align-items:center;gap:8px;font-size:.85rem;display:flex}.batch{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.batch-item{border:1px solid var(--line);border-radius:var(--radius);background:var(--bg);align-items:center;gap:12px;padding:10px;display:flex}.batch-item.is-failed{border-color:var(--danger)}.thumb{object-fit:contain;background:var(--surface-2);border-radius:8px;flex:none;width:56px;height:56px}.batch-body{flex:1;min-width:0}.batch-name{white-space:nowrap;text-overflow:ellipsis;margin:0;font-size:.9rem;font-weight:700;overflow:hidden}.batch-meta,.batch-note{color:var(--muted);font-variant-numeric:tabular-nums;margin:0;font-size:.8rem;line-height:1.6}.batch-note{color:var(--text)}.batch-item.is-processing .status{color:var(--accent)}.batch-actions{align-items:center;gap:6px;display:flex}.error-text{color:var(--danger);margin:0;font-size:.85rem}.options{border:0;flex-direction:column;gap:14px;min-width:0;margin:0;padding:0;display:flex}.field{flex-direction:column;gap:6px;min-width:0;display:flex}.field-label{font-size:.875rem;font-weight:700}.field-row{grid-template-columns:1fr 1fr;gap:10px;display:grid}.input-unit{border:1px solid var(--line);background:var(--bg);border-radius:8px;align-items:center;display:flex;overflow:hidden}.input-unit input{background:0 0;border:0;flex:1;min-width:0;padding:8px 10px}.input-unit>span,.input-unit select{color:var(--muted);border:0;border-left:1px solid var(--line);background:var(--surface);padding:8px 10px;font-size:.85rem}select{border:1px solid var(--line);background:var(--bg);border-radius:8px;padding:8px 10px}input[type=range]{width:100%;accent-color:var(--accent)}.range-ends{justify-content:space-between;display:flex}.checkbox{cursor:pointer;align-items:center;gap:8px;font-size:.9rem;display:flex}.checkbox input{width:18px;height:18px;accent-color:var(--accent)}.segmented{flex-direction:column;gap:6px;display:flex}.segmented label{border:1px solid var(--line);cursor:pointer;border-radius:8px;align-items:center;gap:8px;padding:8px 10px;font-size:.875rem;display:flex}.segmented label.is-active{border-color:var(--accent);background:var(--accent-soft)}.segmented input{accent-color:var(--accent)}.chips{flex-wrap:wrap;gap:6px;display:flex}.chip{border:1px solid var(--line);background:var(--bg);cursor:pointer;border-radius:8px;flex-direction:column;align-items:flex-start;padding:6px 10px;font-size:.8rem;line-height:1.4;display:inline-flex}.chip small{color:var(--muted);font-variant-numeric:tabular-nums}.chip.is-active{border-color:var(--accent);background:var(--accent-soft)}.checker{background-color:#fff;background-image:linear-gradient(45deg,#e5e5e5 25%,#0000 25%),linear-gradient(-45deg,#e5e5e5 25%,#0000 25%),linear-gradient(45deg,#0000 75%,#e5e5e5 75%),linear-gradient(-45deg,#0000 75%,#e5e5e5 75%);background-position:0 0,0 8px,8px -8px,-8px 0;background-size:16px 16px}.preview{border:1px solid var(--line);border-radius:var(--radius);background:var(--bg);flex-direction:column;align-items:center;gap:6px;margin:0;padding:12px;display:flex}.preview-canvas{border-radius:4px;width:auto;max-width:100%;height:auto;max-height:320px;display:block}.crop-stage{border:1px solid var(--line);border-radius:var(--radius);justify-content:center;padding:12px;display:flex}.crop-image{width:auto;max-width:100%;max-height:28rem;display:block}.trust{grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:8px;margin:16px 0 0;padding:0;list-style:none;display:grid}.trust li{color:var(--muted);flex-direction:column;font-size:.85rem;line-height:1.6;display:flex}.trust strong{color:var(--text)}.prose-wrap{margin-top:40px}.prose{max-width:760px}.prose h2{border-bottom:1px solid var(--line);margin:2.2em 0 .6em;padding-bottom:6px;font-size:1.35rem}.prose p,.prose li{line-height:1.9}.steps{padding-left:1.4em}.steps li+li{margin-top:8px}.steps p{margin:2px 0 0}.table-wrap{border:1px solid var(--line);border-radius:var(--radius);overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.9rem}th,td{text-align:left;border-bottom:1px solid var(--line);vertical-align:top;padding:10px 12px}thead th{background:var(--surface);white-space:nowrap}tbody tr:last-child>*{border-bottom:0}.faq details{border:1px solid var(--line);border-radius:var(--radius);background:var(--bg);padding:0 16px}.faq details+details{margin-top:8px}.faq summary{cursor:pointer;padding:12px 0;font-weight:700;line-height:1.6}.faq details p{margin:0 0 14px}.related{margin-top:48px}.related h2{font-size:1.2rem}.page{padding-top:24px}.page h1{margin:0 0 8px;font-size:clamp(1.5rem,4vw,2rem)}.contact-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--accent-soft);flex-direction:column;gap:4px;margin:20px 0;padding:20px;display:flex}.contact-email{font-size:1.25rem;font-weight:700}