:root{--sky:#2bb3a0;--blue:#16857a;--navy:#1d3b3a;--yellow:#f2b544;--ink:#23302f;--muted:#5d6e6c;--line:#d6e8e4;--bg:#f6faf8;--card:#fff;--tint:#e8f5f2;--note:#fff7e3;--max:760px;--round:"Zen Maru Gothic","Hiragino Maru Gothic ProN","Hiragino Sans",sans-serif}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;font-size:16px}body{color:var(--ink);background-color:var(--bg);background-image:linear-gradient(#2bb3a012 1px,#0000 1px),linear-gradient(90deg,#2bb3a012 1px,#0000 1px);background-size:22px 22px;margin:0;font-family:Hiragino Sans,Hiragino Kaku Gothic ProN,Noto Sans JP,system-ui,sans-serif;line-height:1.85}a{color:var(--blue)}img{max-width:100%;height:auto;display:block}.wrap{max-width:var(--max);margin:0 auto;padding:0 16px}h1,h2,h3,.logo,.sec{font-family:var(--round)}header.site{border-top:6px solid var(--sky);border-bottom:1px solid var(--line);background:#fff}header.site .head{flex-direction:column;align-items:flex-start;gap:2px;padding:14px 16px 10px;display:flex}header.site .logo{color:var(--navy);letter-spacing:.04em;align-items:center;gap:8px;min-height:44px;font-size:1.35rem;font-weight:700;text-decoration:none;display:inline-flex}header.site .logo .tag{background:var(--sky);color:#fff;border-radius:8px;justify-content:center;align-items:center;width:34px;height:34px;display:inline-flex;transform:rotate(-8deg)}header.site .tagline{color:var(--muted);margin:0;font-size:.8rem;line-height:1.5}nav.cats{border-top:1px dashed var(--line)}nav.cats ul{scrollbar-width:none;-webkit-overflow-scrolling:touch;gap:8px;margin:0 auto;padding:8px 16px;list-style:none;display:flex;overflow-x:auto}nav.cats ul::-webkit-scrollbar{display:none}nav.cats li{flex:none}@media (width>=640px){nav.cats ul{flex-wrap:wrap;overflow:visible}}nav.cats a{border:1.5px solid var(--line);min-height:40px;color:var(--navy);white-space:nowrap;background:#fff;border-radius:999px;align-items:center;gap:6px;padding:6px 14px;font-size:.85rem;font-weight:700;text-decoration:none;display:inline-flex}nav.cats a:hover,nav.cats a[aria-current=page]{border-color:var(--sky);background:var(--tint);color:var(--blue)}nav.cats .caticon{color:var(--sky)}main{padding:22px 0 48px}.crumb{color:var(--muted);flex-wrap:wrap;align-items:center;gap:6px;margin:0 0 10px;font-size:.8rem;display:flex}.crumb a{color:var(--muted)}article{background:var(--card);border:1px solid var(--line);box-shadow:4px 4px 0 var(--tint);border-radius:4px;padding:22px 18px}h1{color:var(--navy);margin:0 0 14px;font-size:1.5rem;line-height:1.5}article h1{-webkit-box-decoration-break:clone;box-decoration-break:clone;background:linear-gradient(#0000 68%,#f2b54461 68%);display:inline}article h1+img{margin-top:16px}.meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:6px 12px;margin:0 0 12px;font-size:.8rem;display:flex}.chip{background:var(--sky);border-radius:4px;padding:2px 12px;font-weight:700;text-decoration:none;display:inline-block;color:#fff!important}.entry{counter-reset:h2}.entry h2{counter-increment:h2;color:var(--navy);background:var(--tint);border-left:6px solid var(--sky);border-radius:0 6px 6px 0;margin:48px 0 16px;padding:12px 14px 12px 64px;font-size:1.3rem;line-height:1.5;position:relative}.entry h2:before{content:counter(h2,decimal-leading-zero);font-family:var(--round);color:var(--sky);font-size:1.6rem;font-weight:700;line-height:1;position:absolute;top:50%;left:14px;transform:translateY(-50%)}.entry h3{color:var(--navy);border-bottom:2px dotted var(--sky);margin:30px 0 12px;padding:2px 0 6px 18px;font-size:1.12rem;position:relative}.entry h3:before{content:"";background:var(--yellow);width:9px;height:9px;position:absolute;top:.62em;left:2px;transform:rotate(45deg)}.entry p{margin:0 0 1.15em}.entry ul,.entry ol{padding-left:1.4em}.entry li{margin:4px 0}.entry table{border-collapse:collapse;border-radius:6px;width:100%;margin:1.2em 0;font-size:.93em;display:block;overflow-x:auto}.entry th,.entry td{border:1px solid var(--line);text-align:left;vertical-align:top;padding:10px 12px}.entry th{background:var(--blue);color:#fff;border-color:var(--blue);white-space:nowrap}.entry tbody tr:nth-child(2n) td{background:#f7fbfa}.entry img.fig,article img.fig{border:1px solid var(--line);border-radius:6px;margin:0 0 16px}.box{background:var(--note);border:0;border-radius:2px;margin:26px 4px 20px;padding:34px 18px 16px;position:relative;box-shadow:0 2px 6px #00000014}.box:before{content:"";background:#2bb3a059;width:110px;height:22px;position:absolute;top:-10px;left:50%;transform:translate(-50%)rotate(-2deg)}.box .label{font-family:var(--round);color:var(--blue);font-size:.95rem;font-weight:700;position:absolute;top:8px;left:18px}.box ul{counter-reset:pt;margin:4px 0 0;padding-left:0;list-style:none}.box li{counter-increment:pt;margin:10px 0;padding-left:34px;position:relative}.box li:before{content:counter(pt);background:var(--yellow);color:#fff;text-align:center;border-radius:50%;width:24px;height:24px;font-size:.85rem;font-weight:700;line-height:24px;position:absolute;top:.15em;left:0}.blank{border:1.5px dashed var(--sky);background:#fff;border-radius:6px;margin:14px 0;padding:10px 16px}.blank ul{margin:0;padding:0;list-style:none}.blank li{color:var(--navy);margin:6px 0;padding-left:28px;font-size:.95rem;font-weight:700;position:relative}.blank li:before{content:"";border:2px solid var(--sky);border-radius:3px;width:14px;height:14px;position:absolute;top:.45em;left:2px}.blank li:after{content:"";border:solid var(--sky);border-width:0 2px 2px 0;width:5px;height:9px;position:absolute;top:.5em;left:7px;transform:rotate(45deg)}.toc{border:1px solid var(--line);background:#fff;border-radius:6px;margin:18px 0;padding:14px 16px}.toc strong{color:var(--navy)}.toc ol{margin:6px 0 0;padding-left:1.4em}.toc li{margin:2px 0}.toc a{text-decoration:none}.balloon{align-items:flex-start;gap:12px;margin:18px 0;display:flex}.balloon.r{flex-direction:row-reverse}.balloon .who{text-align:center;width:64px;color:var(--muted);flex:0 0 64px;font-size:.75rem;font-weight:700}.balloon .who img{width:52px;height:52px;box-shadow:2px 2px 0 var(--tint);border-radius:12px;margin:0 auto 2px}.balloon.r .who img{box-shadow:2px 2px 0 var(--note)}.balloon .say{background:var(--tint);border-radius:12px;flex:1;padding:12px 16px;position:relative}.balloon .say:before{content:"";border:8px solid #0000;border-left:0;border-right-color:var(--tint);position:absolute;top:18px;left:-8px}.balloon.r .say{background:var(--note)}.balloon.r .say:before{border-right:0;border-left:8px solid var(--note);left:auto;right:-8px}.balloon .say p{margin:0}.btnwrap{text-align:center;margin:20px 0 6px}.btn{background:var(--blue);min-height:48px;box-shadow:0 4px 0 var(--navy);border-radius:6px;justify-content:center;align-items:center;gap:8px;padding:12px 26px;font-weight:700;text-decoration:none;transition:transform .1s,box-shadow .1s;display:inline-flex;color:#fff!important}.btn:after{content:"›";font-size:1.3em;line-height:1}.btn:active{box-shadow:0 1px 0 var(--navy);transform:translateY(3px)}.btn.ghost{border:2px solid var(--blue);box-shadow:0 4px 0 var(--line);background:#fff;color:var(--blue)!important}.pr{color:var(--muted);text-align:center;margin:6px 0 16px;font-size:.8rem}.prtop{color:var(--muted);border-left:3px solid var(--yellow);background:#fffdf6;margin:4px 0 14px;padding:4px 10px;font-size:.78rem}.related{border:1px solid var(--line);background:#fff;border-radius:6px;margin:32px 0 8px;padding:16px}.related .label{font-family:var(--round);color:var(--navy);border-bottom:2px solid var(--sky);margin:0 0 6px;padding-bottom:6px;font-weight:700;display:block}.related ul{margin:0;padding:0;list-style:none}.related li{border-bottom:1px dashed var(--line);margin:0}.related li:last-child{border-bottom:0}.related a{padding:10px 4px 10px 22px;font-weight:700;text-decoration:none;display:block;position:relative}.related a:before{content:"›";color:var(--sky);font-size:1.2em;line-height:1.5;position:absolute;left:6px}.hero{border:1px solid var(--line);background:#fff;border-radius:6px;margin-bottom:26px;padding:22px 18px}.hero.home{gap:18px;display:grid}@media (width>=700px){.hero.home{grid-template-columns:1.5fr 1fr;align-items:center}}.hero .kicker{color:var(--blue);background:var(--tint);border-radius:4px;margin:0 0 6px;padding:2px 10px;font-size:.78rem;font-weight:700;display:inline-block}.hero h1{margin:0 0 10px;font-size:1.3rem}@media (width>=640px){.hero h1{font-size:1.45rem}}.hero p{color:var(--muted);margin:0 0 12px;font-size:.92rem}.hero-btns{flex-wrap:wrap;gap:12px;display:flex;margin:16px 0 4px!important}.steps{background:var(--note);counter-reset:st;border-radius:4px;margin:0;padding:14px 14px 10px;list-style:none}.steps:before{content:"売るときの3ステップ";font-family:var(--round);color:var(--navy);margin-bottom:6px;font-weight:700;display:block}.steps li{counter-increment:st;border-top:1px dashed #0000001f;grid-template-columns:34px 1fr;align-items:center;column-gap:8px;padding:8px 0;display:grid}.steps li:before{content:counter(st);background:var(--sky);color:#fff;text-align:center;border-radius:50%;grid-row:span 2;width:30px;height:30px;font-weight:700;line-height:30px}.steps b{color:var(--navy)}.steps span{color:var(--muted);font-size:.8rem;line-height:1.4}.hero.cat{align-items:center;gap:14px;display:flex}.hero.cat h1{margin:0 0 4px}.hero.cat p{margin:0}.hero .ic,.catgrid .ic{background:var(--tint);width:52px;height:52px;color:var(--blue);border-radius:12px;flex:none;justify-content:center;align-items:center;display:inline-flex}h2.sec{color:var(--navy);align-items:center;gap:10px;margin:30px 0 12px;font-size:1.15rem;display:flex}h2.sec:after{content:"";background:repeating-linear-gradient(90deg,var(--sky) 0 8px,transparent 8px 14px);flex:1;height:2px}.catgrid{grid-template-columns:1fr;gap:10px;display:grid}@media (width>=640px){.catgrid{grid-template-columns:1fr 1fr}}.catgrid a{border:1px solid var(--line);border-left:5px solid var(--sky);color:var(--navy);background:#fff;border-radius:6px;align-items:center;gap:12px;min-height:64px;padding:12px;text-decoration:none;display:flex}.catgrid a:hover{background:var(--tint)}.catgrid .ic{width:44px;height:44px}.catgrid .ct{flex:1;line-height:1.45}.catgrid b{font-size:.98rem;display:block}.catgrid small{color:var(--muted);margin-top:2px;font-size:.76rem;display:block}.catgrid .n{color:var(--blue);background:var(--tint);white-space:nowrap;border-radius:999px;padding:2px 10px;font-size:.75rem;font-weight:700}.basics{border:1px solid var(--line);counter-reset:bs;background:#fff;border-radius:6px;margin:0;padding:6px 16px;list-style:none}.basics li{counter-increment:bs;border-bottom:1px dashed var(--line)}.basics li:last-child{border-bottom:0}.basics a{color:var(--navy);align-items:baseline;gap:10px;padding:11px 0;font-weight:700;text-decoration:none;display:flex}.basics a:before{content:counter(bs,decimal-leading-zero);font-family:var(--round);color:var(--sky);font-size:1.05rem}.list{gap:12px;margin:0;padding:0;list-style:none;display:grid}.list a{border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:6px;grid-template-columns:120px 1fr;align-items:start;gap:12px;padding:10px;text-decoration:none;display:grid}@media (width>=640px){.list a{grid-template-columns:200px 1fr;padding:12px}}.list a:hover{border-color:var(--sky);box-shadow:3px 3px 0 var(--tint)}.list img{aspect-ratio:1200/630;object-fit:cover;border-radius:4px;width:100%}.list .lt{line-height:1.5}.list b{color:var(--navy);font-size:.95rem;display:block}.list small{-webkit-line-clamp:2;color:var(--muted);-webkit-box-orient:vertical;margin-top:4px;font-size:.78rem;display:-webkit-box;overflow:hidden}@media (width<=420px){.list small{display:none}}footer.site{border-top:6px solid var(--sky);color:var(--muted);background:#fff;padding:28px 0 18px;font-size:.85rem}.fcols{gap:18px;display:grid}@media (width>=640px){.fcols{grid-template-columns:1.2fr 1fr 1fr}}.flogo{font-family:var(--round);color:var(--navy);margin:0;font-size:1.15rem;font-weight:700}.fdesc{margin:4px 0 0;font-size:.8rem}.fh{color:var(--navy);margin:0 0 4px;font-weight:700}footer.site ul{margin:0;padding:0;list-style:none}footer.site li a{color:var(--blue);padding:6px 0;text-decoration:none;display:inline-block}.copy{border-top:1px dashed var(--line);margin:18px 0 0;padding-top:12px;font-size:.78rem}.note{color:var(--muted);font-size:.85rem}.stepl,.entry .stepl{counter-reset:sp;gap:10px;margin:12px 0;padding:0;list-style:none;display:grid}.stepl li{counter-increment:sp;margin:0}.stepl a{border:1px solid var(--line);background:#fff;border-radius:6px;grid-template-columns:auto 1fr;align-items:center;column-gap:12px;padding:10px 12px;text-decoration:none;display:grid}.stepl a:before{content:"STEP " counter(sp);font-family:var(--round);color:#fff;background:var(--sky);white-space:nowrap;border-radius:4px;grid-row:span 2;padding:4px 8px;font-size:.8rem;font-weight:700}.stepl small{color:var(--muted);font-size:.78rem}.stepl b{color:var(--navy);line-height:1.5}.entry .catgrid a{color:var(--navy)}