:root{--paper:#f6f5ef;--ink:#263e35;--muted:#737970;--line:#dedfd4;--accent:#df6b48;--green:#244f42}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;font-size:14px;line-height:1.8}.shell{max-width:1200px;margin:auto;padding:0 48px}button,textarea{font:inherit}button,a,input,textarea{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:wait}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible+span,textarea:focus-visible,summary:focus-visible{outline:3px solid #bd673d;outline-offset:4px}.site-header{height:100px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:10px;font-size:23px;font-weight:800;letter-spacing:.04em}.brand-icon{font-size:35px;line-height:1;transform:rotate(-15deg);color:var(--accent)}.beta{font-size:9px;letter-spacing:.1em;background:#e8e9df;padding:3px 7px;border-radius:4px;margin:0 0 2px 4px}.header-link{font-size:12px}.header-link span{margin-left:16px}.intro{position:relative;text-align:center;padding:49px 0 46px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.18em;display:flex;align-items:center;justify-content:center;gap:8px}.dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}h1{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:52px;letter-spacing:.06em;font-weight:600;line-height:1.4;margin:20px 0 13px}.intro>p{font-size:14px;line-height:2;color:#677367}.feature-line{display:flex;gap:20px;justify-content:center;font-size:10px;color:#697266;margin-top:23px}.feature-line span+span:before{content:"·";margin-right:20px;color:#a2a696}.cut-line{border-top:1px dashed #d7d8cb;position:absolute;width:130px;right:-35px;top:123px;transform:rotate(-25deg)}.cut-line span{background:var(--paper);font-size:25px;position:relative;top:-24px;color:var(--accent)}.mobile-br{display:none}.workspace{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}.editor-panel,.result-panel{background:#fffefa;border:1px solid var(--line);border-radius:16px;padding:25px;min-width:0}.editor-panel{position:sticky;top:20px}.panel-head,.panel-head>div{display:flex;align-items:center}.panel-head{justify-content:space-between;gap:10px;margin-bottom:18px}.panel-head>div{gap:10px}.step{font-size:11px;color:var(--accent);font-weight:800;letter-spacing:.06em}h2{font-size:17px;margin:0;letter-spacing:.04em}.text-button{border:0;background:transparent;color:var(--green);padding:5px 0;font-size:11px;text-decoration:underline;text-underline-offset:4px}.text-button span{padding-left:5px}.muted{color:var(--muted)}textarea{display:block;width:100%;resize:vertical;min-height:285px;border:1px solid #e4e5dc;border-radius:9px;background:#f9f9f4;padding:18px;color:var(--ink);line-height:1.95;font-size:13px}textarea::placeholder{color:#92968a}.editor-meta{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:10px;margin:6px 0 17px;gap:10px}.settings{border-top:1px solid #e9e9e0;padding-top:18px;margin-bottom:20px}.switch-label{position:relative;display:flex;align-items:center;gap:10px;cursor:pointer;font-size:12px}.switch-label input{position:absolute;opacity:0;width:36px;height:24px;left:0}.switch{width:32px;height:19px;background:#b1b6aa;border-radius:20px;position:relative;flex-shrink:0}.switch:after{content:"";width:13px;height:13px;position:absolute;left:3px;top:3px;border-radius:50%;background:white;transition:transform .15s}.switch-label input:checked+.switch{background:var(--green)}.switch-label input:checked+.switch:after{transform:translateX(13px)}small{font-size:10px;color:var(--muted);margin-left:6px}.settings p{font-size:10px;margin:7px 0 0 42px;color:var(--muted)}.primary{border:0;border-radius:8px;background:var(--green);color:white;width:100%;padding:13px 18px;font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center;gap:35px;transition:background .15s}.primary:hover{background:#153e30}.primary span{font-size:21px;line-height:1}.local-note{text-align:center;font-size:10px;color:var(--muted);margin:11px 0 0}.local-note span{padding-right:4px}.limit-badge{font-size:9px;padding:3px 8px;border-radius:20px;background:#edf0e5;white-space:nowrap}.result-meta{display:flex;justify-content:space-between;gap:10px;font-size:10px;color:var(--muted);margin-top:-7px;padding-bottom:14px;border-bottom:1px solid #ecece4}.empty-state{min-height:420px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.paper-stack{height:120px;width:120px;position:relative;margin-bottom:13px}.paper{width:72px;height:92px;border:1px solid #d7d9ce;border-radius:6px;position:absolute;left:24px;top:12px;background:#fffefa}.paper.back{transform:rotate(-14deg);background:#eceee4;left:19px}.paper.front{transform:rotate(8deg);padding:23px 13px}.paper span{display:block;height:3px;background:#ced7c6;margin-bottom:9px;width:100%;border-radius:3px}.paper span:nth-child(3){width:65%}.paper b{font-size:10px;color:#83927b;position:absolute;bottom:8px;right:10px;font-weight:400}.spark{position:absolute;right:0;top:0;color:var(--accent);font-size:31px}.empty-state h3{font-family:"Yu Mincho",serif;font-size:19px;font-weight:500;margin:6px 0}.empty-state p{font-size:11px;color:var(--muted);line-height:2}.empty-state .text-button{margin-top:12px}.post-card{margin-top:16px;border:1px solid #dedfd5;border-radius:10px;background:#fff;padding:17px}.post-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.post-number{font-size:11px;font-weight:700;color:var(--accent)}.post-meter{font-size:10px;color:var(--muted);font-variant-numeric:tabular-nums}.post-text{white-space:pre-wrap;overflow-wrap:anywhere;font-size:13px;line-height:1.95}.post-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;border-top:1px solid #efefe8;padding-top:13px;margin-top:16px}.post-footer>span{font-size:9px;color:var(--muted)}.copy-button{border:1px solid var(--green);background:white;color:var(--green);border-radius:6px;min-width:78px;padding:6px 10px;font-size:11px;white-space:nowrap}.copy-button:hover{background:#edf2e9}.copy-button.copied{background:var(--green);color:white}.post-footer .warning{color:#9f622e}.secondary{background:#f1f3e9;border:1px solid #d9dfce;border-radius:7px;color:var(--green);width:100%;padding:10px;font-size:12px;margin-top:17px}.reply-note{font-size:10px;color:var(--muted);margin:12px 0 0}.how{padding:65px 0 48px}.section-label{font-size:9px;letter-spacing:.2em;color:var(--accent);font-weight:700;margin-bottom:9px}.how>h2,.faq>h2{font-family:"Yu Mincho",serif;font-weight:600;font-size:25px}.how-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:24px}.how-grid article{border-top:1px solid var(--line);padding-top:15px}.how-grid article>span{font-size:10px;color:#8b9584}.how-grid h3{font-size:13px;font-weight:600;margin:7px 0}.how-grid p{font-size:11px;color:var(--muted);line-height:2;margin-top:6px}.faq{padding:0 0 48px;max-width:780px}.faq>h2{font-size:21px;margin-bottom:15px}details{border-bottom:1px solid var(--line);padding:13px 0}summary{cursor:pointer;font-size:12px}details p{font-size:11px;color:var(--muted);line-height:2;padding:5px 15px}footer{padding:24px 0 34px;border-top:1px solid var(--line);display:flex;align-items:center;gap:20px}footer>span{font-size:10px;color:var(--muted)}footer>a:last-child{margin-left:auto;font-size:10px;color:var(--muted);text-decoration:underline}.footer-brand{font-size:17px}.error{background:#fff0e9;color:#994526;padding:12px;border:1px solid #efd2c3;border-radius:7px;font-size:12px}.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}[hidden]{display:none!important}@media(min-width:1500px){.shell{max-width:1300px}.workspace{gap:30px}textarea{min-height:315px}}@media(max-width:850px){.shell{padding:0 24px}.cut-line{display:none}.workspace{gap:15px}.editor-panel,.result-panel{padding:19px}.panel-head{flex-wrap:wrap}h1{font-size:44px}.settings small{display:block;margin-left:0}.how-grid{gap:20px}}@media(max-width:640px){.shell{padding:0 20px}.site-header{height:77px}.brand{font-size:21px}.intro{padding:36px 0 32px}h1{font-size:38px;line-height:1.45;margin-top:17px}.mobile-br{display:block}.intro>p{font-size:12px}.feature-line{gap:11px;font-size:9px}.feature-line span+span:before{margin-right:11px}.workspace{grid-template-columns:1fr;gap:20px}.editor-panel{position:static}.editor-panel,.result-panel{padding:20px;border-radius:13px}.panel-head{flex-wrap:nowrap}textarea{min-height:240px}.empty-state{min-height:300px}.settings small{display:inline;margin-left:5px}.how{padding:43px 0 30px}.how-grid{grid-template-columns:1fr;gap:15px;margin-top:19px}.how-grid article{padding-top:10px}.how-grid h3{display:inline;margin-left:12px}.how-grid p{margin:7px 0}.faq{padding-bottom:30px}footer{flex-wrap:wrap;gap:9px 16px}footer>span{font-size:9px}.post-footer{align-items:flex-end}h2{font-size:16px}.limit-badge{font-size:8px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}