:root{--paper:#f8f7f2;--white:#fff;--ink:#172b2a;--muted:#576b66;--plum:#b52b36;--pine:#164c45;--line:#d9dfd7;--tint:#edf0e8;--serif:"Yu Mincho","Hiragino Mincho ProN","Noto Serif CJK JP",serif;--sans:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;color:var(--ink);background:var(--paper);font-family:var(--sans);font-size:16px;scroll-behavior:smooth;scroll-padding-top:24px}
*{box-sizing:border-box}body{margin:0}a{color:inherit;text-underline-offset:.3em}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}:focus-visible{outline:3px solid #187e8e;outline-offset:5px}p{line-height:1.9}img{max-width:100%}[hidden]{display:none!important}.wrap{width:min(1200px,calc(100% - 96px));margin-inline:auto}.header{height:110px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.brand{display:inline-flex;gap:12px;align-items:center;text-decoration:none;font-size:22px;font-weight:650;letter-spacing:-.04em}.header nav{display:flex;gap:30px;align-items:center;font-size:14px}.header nav a{text-decoration:none}.nav-contact{border-bottom:1px solid var(--ink);padding-bottom:6px}.skip{position:absolute;left:16px;top:-100px;background:var(--white);padding:16px;z-index:10}.skip:focus{top:16px}
.hero{display:grid;grid-template-columns:1fr .93fr;gap:76px;padding-block:74px 90px;align-items:start}.hero-copy{padding-top:22px}.season{color:var(--plum);font-size:15px;font-weight:600;margin:0 0 28px}.season span{margin-right:8px}h1,h2,h3,p{overflow-wrap:anywhere}h1,h2{font-family:var(--serif);font-weight:500;margin:0;letter-spacing:.035em}h1{font-size:clamp(40px,4.1vw,59px);line-height:1.55;word-break:keep-all}.intro{font-size:15px;line-height:2.05;margin:28px 0 30px}.hero-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;min-height:54px;padding:15px 23px;border-radius:5px;text-align:center;text-decoration:none;font-weight:600;font-size:14px}.primary{background:var(--plum);color:var(--white)}.primary:hover{background:#97202b}.text-link{font-size:14px;font-weight:550}.development{font-size:12px;color:var(--muted);margin:16px 0 0}.hero-note{margin-top:64px;display:flex;align-items:center;gap:16px;font-family:var(--serif);font-size:15px}.note-line{display:block;width:36px;height:1px;background:var(--plum)}.hero-note p{margin:0}
.demo{border:1px solid var(--line);border-radius:16px;background:var(--white);overflow:hidden;box-shadow:0 16px 36px #1b38200a;scroll-margin-top:20px}.demo-heading{display:flex;justify-content:space-between;align-items:center;padding:17px 22px;font-size:12px;border-bottom:1px solid var(--line)}.sample-tag{font-size:11px;color:var(--muted)}.postcard-stage{position:relative;background:var(--tint);padding:27px 54px 32px}.postcard{container-type:size;width:100%;position:relative;aspect-ratio:100/148;background:var(--white);color:#222;box-shadow:1px 5px 15px #23433112;font-family:var(--serif);--name-size:7.6}.stamp{position:absolute;left:7%;top:6%;width:17%;height:16%;border:1px solid #d9767a;display:grid;place-items:center;color:#ba444c;font-family:var(--sans);font-size:2.5cqw}.post-title{position:absolute;top:5%;left:54%;color:#ba444c;font-family:var(--sans);font-size:2.4cqw}.nenga{position:absolute;left:11%;top:26%;font-size:2.5cqw;color:#ba444c}.postal{position:absolute;right:6.5%;top:10%;width:49%;display:grid;grid-template-columns:repeat(7,1fr);gap:1.6%;font-family:var(--sans);font-size:4cqw}.postal span{border:1px solid #d9767a;line-height:1.5;text-align:center}.recipient-address{position:absolute;right:7%;top:24%;height:62%;font-size:4cqw;line-height:1.4;writing-mode:vertical-rl;text-orientation:upright;letter-spacing:.035em}.recipient-name{position:absolute;top:27%;left:46%;height:62%;padding:4px 1.5%;font-size:calc(var(--name-size)*1cqw);writing-mode:vertical-rl;text-orientation:upright;letter-spacing:.08em;line-height:1.2}.honorific{margin-top:1.4em}.selected-block{outline:1px solid #b52b3655;outline-offset:3px}.recipient-company{position:absolute;right:23%;top:26%;height:58%;font-size:3.5cqw;line-height:1.4;writing-mode:vertical-rl}.joint-name{position:absolute;top:44%;left:33%;font-size:5.5cqw;writing-mode:vertical-rl;letter-spacing:.1em}.sender-address{position:absolute;left:8%;top:55%;font-size:2.4cqw;writing-mode:vertical-rl}.sender-name{position:absolute;left:18%;top:63%;font-size:3.7cqw;writing-mode:vertical-rl}.sender-postal{position:absolute;left:6%;bottom:5%;font:2.3cqw var(--sans);letter-spacing:.08em}.dimension{display:block;text-align:right;font-size:10px;color:var(--muted);margin-top:15px}.demo-controls{padding:19px 22px 16px;display:grid;gap:14px}.control-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px}select{padding:8px 30px 8px 10px;border:1px solid var(--line);border-radius:5px;background:var(--white);color:var(--ink);max-width:65%}fieldset{display:flex;align-items:center;justify-content:space-between;gap:14px;border:0;padding:0;margin:0;min-width:0}legend{float:left;font-size:13px;padding:0;margin-right:12px}.font-options{display:flex;gap:5px}.font-options label{position:relative}.font-options input{position:absolute;opacity:0;width:100%;height:100%;margin:0;cursor:pointer}.font-options span{display:block;border:1px solid var(--line);border-radius:4px;padding:6px 13px;font-size:13px}.font-options input:checked+span{border-color:var(--plum);color:var(--plum);background:#fff4f2}.font-options input:focus-visible+span{outline:3px solid #187e8e;outline-offset:3px}.mincho{font-family:var(--serif)}.size-control{display:flex;align-items:center;gap:13px;font-size:13px}.size-control input{width:40%;margin-left:auto;accent-color:var(--plum)}.size-control output{width:25px;text-align:right;font-variant-numeric:tabular-nums;color:var(--muted)}.demo-status{font-size:12px;color:var(--pine);margin:0}.demo-disclaimer{font-size:10px;color:var(--muted);margin:0;line-height:1.7}
.section{padding-block:90px}.section-heading{display:flex;justify-content:space-between;gap:50px;align-items:start;margin-bottom:50px}.small-title{font-size:14px;margin:6px 0 17px;color:var(--muted)}h2{font-size:clamp(29px,3vw,39px);line-height:1.65}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:48px;padding:0;list-style:none;margin:0}.steps li{border-top:1px solid var(--line);padding-top:24px}.step-number{color:var(--plum);font-family:var(--serif);font-size:28px}.steps h3{font-size:18px;font-weight:550;margin:17px 0}.steps p{font-size:14px;color:var(--muted);margin-bottom:12px}.steps small{font-size:12px;color:var(--ink);line-height:1.8;display:block}.detail{background:#ecefe8}.detail-grid{display:grid;grid-template-columns:.85fr 1fr;gap:100px;align-items:center}.source-example{background:var(--white);border-radius:12px;padding:27px 30px;transform:rotate(-2deg);box-shadow:0 7px 22px #1b382008}.source-title{display:flex;gap:12px;align-items:center;font-weight:600;font-size:15px}.contact-icon{background:var(--tint);border-radius:50%;display:grid;place-items:center;width:38px;height:38px;color:var(--pine);font-size:15px}.source-example dl{font-size:14px}.source-example dl div{border-bottom:1px solid var(--line);padding:14px 0;display:grid;grid-template-columns:65px 1fr;gap:14px}.source-example dt{color:var(--muted);font-size:12px}.source-example dd{margin:0;line-height:1.75}.source-example>p{font-size:10px;color:var(--muted);margin-bottom:0}.detail-copy>p{font-size:14px;color:var(--muted);max-width:470px;margin:23px 0}.care{background:var(--pine);color:var(--white)}.care-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px}.care h2{margin-top:18px}.care img{filter:brightness(0) invert(1);opacity:.8}.care-copy{padding-top:28px}.care-copy>p{font-size:15px;line-height:2.1;margin:0 0 24px}.care-copy .care-small{font-size:12px;color:#d0dfd6}.care-copy a{font-size:13px}.questions{max-width:900px}.questions h2{font-size:29px;margin-bottom:34px}.questions details{border-bottom:1px solid var(--line);padding:23px 0}.questions summary{font-size:15px;cursor:pointer;line-height:1.8;padding-right:12px}.questions details p{font-size:14px;color:var(--muted);max-width:760px;margin-bottom:0}.availability{background:#ecefe8}.availability-inner{display:flex;justify-content:space-between;align-items:center;gap:60px}.availability-inner>div>p{font-size:14px;color:var(--muted)}.contact-action{text-align:center}.contact-action>p{font-size:12px!important;margin-bottom:7px}.footer{display:flex;align-items:center;justify-content:space-between;padding-block:36px}.footer .brand{font-size:17px}.footer>div{display:flex;gap:24px;color:var(--muted);font-size:11px}.legal{max-width:800px;padding-block:70px}.legal h1{font-size:38px}.legal h2{font-family:var(--sans);font-size:20px;margin-top:40px}.legal p,.legal li{font-size:15px;line-height:1.9;color:var(--muted)}
@media(min-width:1500px){.hero{gap:110px}}@media(max-width:1000px){.wrap{width:calc(100% - 56px)}.hero{gap:40px;grid-template-columns:1fr 1fr}.hero-copy{padding-top:4px}h1{font-size:43px}.hero-actions{gap:18px}.intro{font-size:14px}.postcard-stage{padding-inline:40px}.hero-note{margin-top:32px}.steps{gap:28px}.detail-grid{gap:55px}.care-grid{gap:50px}.section{padding-block:65px}.availability-inner{gap:30px}.availability .button{max-width:300px}}
@media(max-width:720px){.wrap{width:calc(100% - 40px)}.header{height:82px}.header .brand{font-size:20px}.brand img{width:28px;height:28px}.header nav{gap:16px;font-size:12px}.header nav>a:nth-child(2){display:none}.header nav>a:first-child{display:none}.hero{grid-template-columns:1fr;gap:42px;padding-top:45px;padding-bottom:55px}.hero-copy{padding-top:0}.season{font-size:13px;margin-bottom:21px}h1{font-size:clamp(38px,10vw,52px);line-height:1.55;letter-spacing:.045em}h1 br:last-of-type{display:none}.intro{font-size:14px;line-height:2;margin-top:23px}.hero-note{display:none}.hero-actions{gap:19px}.hero-actions .button{font-size:13px;padding-inline:17px}.development{margin-top:14px}.demo{width:min(100%,450px);justify-self:center;scroll-margin-top:12px}.demo-heading{padding:15px 19px}.postcard-stage{padding:24px 56px 24px}.demo-controls{padding:18px 19px}.section-heading{display:block;margin-bottom:34px}.section-heading h2 br{display:none}.steps{grid-template-columns:1fr;gap:28px}.steps li{display:grid;grid-template-columns:34px 1fr;gap:0 12px;padding-top:20px}.steps .step-number{grid-row:1/4;font-size:27px}.steps h3{margin:5px 0 8px;font-size:17px}.steps p{margin:0 0 7px}.steps small{grid-column:2}.section{padding-block:55px}.detail-grid{grid-template-columns:1fr;gap:40px}.source-example{order:2;margin-inline:8px;padding:22px 24px}.detail-copy h2{font-size:29px}.detail-copy>p{margin-block:20px}.care-grid{grid-template-columns:1fr;gap:22px}.care h2{font-size:32px}.care h2 br:last-of-type{display:none}.care-copy{padding-top:0}.care-copy>p{font-size:14px}.questions h2{font-size:25px;max-width:300px}.questions summary{font-size:14px}.questions details p{font-size:13px}.availability-inner{display:block}.availability h2{font-size:29px}.contact-action{text-align:left;margin-top:30px}.contact-action .button{max-width:none;width:100%}.contact-action>p{margin-top:18px}.footer{align-items:start;gap:24px}.footer>div{flex-direction:column;gap:12px}.footer .brand{font-size:16px;gap:8px}.legal{padding-block:40px}.legal h1{font-size:28px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}}

/* 2026-10-29: real screens, clear free/batch boundary, launch materials. */
.hero-native{margin:0;background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:0 24px 60px #22382a10}.hero-native img{display:block;width:100%;max-height:720px;object-fit:contain;background:#f2f2f7}.device-cap{display:flex;justify-content:space-between;padding:17px 20px;font-size:11px;color:var(--muted);gap:12px}.hero-native figcaption{padding:18px 22px;font-family:var(--serif);font-size:15px}.screen-story{display:grid;grid-template-columns:1fr 1fr;gap:70px;padding:20px 40px}.screen-story figure{margin:0;display:grid;justify-items:center;gap:25px}.screen-story img{display:block;max-height:650px;width:auto;border:1px solid var(--line);border-radius:20px;box-shadow:0 18px 45px #22382a0c}.screen-story figcaption{max-width:430px}.screen-story strong{display:block;font-size:20px;margin-bottom:12px}.screen-story span{display:block;line-height:1.9;color:var(--muted);font-size:14px}.caption-note{font-size:12px!important;color:var(--muted);line-height:1.9}.pricing{border-top:1px solid var(--line)}.pricing-intro{max-width:720px;color:var(--muted)}.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:36px 0 20px}.price-grid article{background:#fff;padding:30px 28px;border:1px solid var(--line);border-radius:16px}.price-grid .price-lifetime{border:2px solid var(--plum);padding:29px 27px}.plan-label{font-size:12px;color:var(--plum);font-weight:650}.price-grid h3{font-size:22px;font-family:var(--serif);font-weight:500;margin:12px 0}.price{font-size:46px;letter-spacing:-.04em;line-height:1.2;font-variant-numeric:tabular-nums;margin:25px 0}.price span{font-size:14px;letter-spacing:0;margin-left:7px}.price-grid ul{padding-left:20px;font-size:14px;line-height:2}.price-grid article>p:last-child{font-size:12px;color:var(--muted)}.wide-feature{background:#edf0e8}.interactive .demo{max-width:520px;margin-inline:auto}.wide-feature .source-example{box-shadow:none} .legal dl dt{font-weight:650;margin-top:22px}.legal dl dd{margin:8px 0;line-height:1.9;color:var(--muted)}
@media(max-width:850px){.price-grid{grid-template-columns:1fr}.screen-story{gap:25px;padding-inline:0}.screen-story img{max-height:520px}.screen-story strong{font-size:17px}.hero-native img{max-height:650px}}@media(max-width:520px){.screen-story{grid-template-columns:1fr;gap:46px}.hero-native{max-width:460px}.price-grid article{padding:26px}.pricing .section-heading h2{font-size:29px}.hero-native .device-cap{font-size:10px}}

img{height:auto}.hero-native img{width:auto;height:auto;max-width:100%;margin-inline:auto;background:#fff}.care :focus-visible{outline-color:#fff}.demo-disclaimer,.source-example>p,.device-cap,.sample-tag{font-size:12px!important}.price-grid article:last-child>p:last-child{font-size:14px}.hero h1 span{display:inline-block}@media(max-width:720px){.hero h1{font-size:clamp(30px,7.5vw,44px)}.hero h1 br:last-of-type{display:initial}}