/* 採用H-D / F-A＋立体端末 / I-D / T-A。画面は既存の比率を保つ。 */
.a-header.adopted-header{background:transparent;border:0;border-bottom:1px solid #d6ded333;border-radius:0;max-width:1260px;width:calc(100% - 104px);padding:16px 0;top:10px;color:#f6f2e9;gap:32px}.adopted-header .brand-wordmark{filter:brightness(0) invert(1);opacity:.95}.adopted-header .brand-symbol{width:30px;height:30px}.adopted-header .a-header-store{border:1px solid #b3c5b866;background:transparent;border-radius:5px;font-size:12px;padding:9px 14px}.adopted-header .a-header-store span{color:#bfd0c5}.adopted-header nav{font-size:13px;gap:28px}.adopted-header nav a{color:#edf0e5}
.hero-three-dimensional{min-height:930px;max-height:none;padding:146px max(6vw,calc((100vw - 1260px)/2)) 140px;display:flex;align-items:center;background:#202d46;isolation:isolate}.hero-three-dimensional:after{content:"";position:absolute;z-index:-1;inset:0;background:radial-gradient(ellipse at 73% 42%,#50624d40,transparent 50%)}.hero-three-dimensional .a-copy{width:45%;z-index:3}.hero-three-dimensional .a-tagline{font-size:21px!important;margin:0 0 27px;color:#c2d3c6}.hero-three-dimensional .a-copy h1{font-size:clamp(50px,5vw,74px);line-height:1.3;letter-spacing:-.025em}.hero-three-dimensional .a-copy h1>span{display:block;font-size:.52em;font-weight:400;line-height:1.6;white-space:nowrap;margin-top:14px;letter-spacing:.01em}.hero-three-dimensional .a-lead{font-size:14px;line-height:2;color:#d4dcd7;max-width:390px;margin:25px 0}.hero-three-dimensional .hero-price{margin-top:24px}.hero-three-dimensional .hero-price>span{font-size:12px}.hero-three-dimensional .hero-price p{font-size:16px}.hero-three-dimensional .hero-price strong{font:650 49px/1.25 var(--sans);letter-spacing:-.055em}.hero-three-dimensional .button{border-radius:5px;padding:13px 21px;min-height:46px;font-size:13px}.hero-three-dimensional .hero-actions{gap:18px;margin-top:25px}.hero-three-dimensional .release-notice{font-size:12px!important}.hero-three-dimensional .release-notice>span{margin-right:7px}
.hero-portraits{position:absolute;inset:0 0 0 38%;z-index:-2;overflow:hidden;pointer-events:none}.hero-portrait{position:absolute;inset:0;margin:0;opacity:0;visibility:hidden;transition:opacity 1.8s ease,visibility 1.8s ease}.hero-portrait.is-active{opacity:1;visibility:visible}.hero-portrait img{width:100%;height:100%;object-fit:cover;object-position:50% 22%;filter:grayscale(1);opacity:.43;mask-image:linear-gradient(90deg,transparent,#000 42%);animation:hero-portrait-drift 20s ease-in-out infinite alternate}.hero-portrait:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#202d46,transparent 42%,transparent 75%,#202d4644)}.hero-portrait figcaption{position:absolute;top:109px;right:8%;font-family:var(--serif);color:#cad7cf;font-size:15px;line-height:1.8;letter-spacing:.07em}.hero-portrait figcaption small{display:block;font:11px/2 var(--sans);letter-spacing:.12em;color:#9cafab}
.hero-devices{position:absolute;right:max(5vw,calc((100vw - 1260px)/2));top:157px;width:53%;max-width:680px;height:685px;perspective:1600px;z-index:2;transform-style:preserve-3d;pointer-events:none}.hero-device{position:absolute;transform-style:preserve-3d}.hero-device .iphone{width:280px;--device-scale:.6730769231;max-width:none;filter:none;transform-style:preserve-3d}.hero-reader{left:7%;top:10px;transform:rotateX(7deg) rotateY(-18deg) rotateZ(-11deg);z-index:1}.hero-chat{right:0;top:112px;transform:rotateX(6deg) rotateY(-19deg) rotateZ(10deg);z-index:2}.hero-chat .iphone{width:288px;--device-scale:.6923076923}.hero-phone-float{position:relative;transform-style:preserve-3d}.hero-device .iphone:before{content:"";position:absolute;inset:0;border-radius:43px;background:linear-gradient(100deg,#657477,#c0c7c3 22%,#3e4b4b 45%,#142425 62%,#8f9e99);transform:translateZ(-10px) translateX(11px) translateY(4px);box-shadow:8px 15px 2px #090f17,20px 30px 55px #0c182275;z-index:-1}.hero-device .iphone-canvas{background:linear-gradient(120deg,#e7ebe5,#77837e 6%,#18231e 9%,#09110d 91%,#9aa69f 95%,#d7dfd8);box-shadow:inset 0 0 0 1px #d1dbd5,0 0 0 1px #070d09,0 28px 40px #0d1c2655}.hero-device .iphone-display:after{content:"";position:absolute;inset:0;border-radius:56px;background:linear-gradient(110deg,#ffffff25,transparent 32%,transparent 76%,#ffffff0d);pointer-events:none;z-index:6}.hero-device-label{display:block;color:#c4d6c7;font-size:10px;line-height:1.6;letter-spacing:.09em;text-align:center;margin-top:22px}.hero-view-note{position:absolute;right:max(6vw,calc((100vw - 1260px)/2));bottom:105px;font-size:10px;line-height:1.7;color:#b9cbbb;z-index:3}.hero-three-dimensional .a-hero-bottom{left:max(6vw,calc((100vw - 1260px)/2));right:max(6vw,calc((100vw - 1260px)/2));bottom:30px;align-items:center;padding-top:18px;border-color:#cbd5e32b}.hero-author-controls{display:flex;gap:24px;flex-wrap:wrap;align-items:center}.hero-author-controls button{border:0;background:transparent;color:#90a39e;font-size:11px;padding:9px 0;display:flex;align-items:center;gap:10px;cursor:pointer;border-bottom:1px solid transparent;line-height:1.8}.hero-author-controls button>span{font:12px/1 Georgia,serif;color:#93ada0}.hero-author-controls button[aria-pressed=true]{color:#f3f4eb;border-bottom-color:#a9c4b0}.hero-three-dimensional .motion-toggle{font-size:11px}
/* 同じ読書画面の前後に静かな浮遊を付ける。内容を隠す演出はしない。 */
html[data-motion=playing] .hero-reader .hero-phone-float{animation:hero-phone-reader 9s ease-in-out infinite alternate}html[data-motion=playing] .hero-chat .hero-phone-float{animation:hero-phone-chat 11s ease-in-out infinite alternate}html[data-motion=paused] .hero-portrait img{animation-play-state:paused}html[data-motion=paused] .hero-portrait{transition:none}@keyframes hero-phone-reader{to{transform:translate3d(0,-12px,0)}}@keyframes hero-phone-chat{to{transform:translate3d(0,10px,0)}}@keyframes hero-portrait-drift{to{transform:scale(1.04) translateX(-1%)}}
.invite-free{background:#f6f2e9;color:#243e31;padding:65px max(6vw,calc((100vw - 1120px)/2));display:grid;grid-template-columns:1fr 1.12fr;gap:74px;align-items:center;border-top:1px solid #d5dccd}.invite-free-art{position:relative;min-height:310px;display:flex;flex-direction:column;justify-content:center;isolation:isolate}.free-word{font:650 clamp(90px,10vw,150px)/1 var(--sans);letter-spacing:-.085em;color:#284e3c}.free-cover{position:absolute;right:15px;top:15px;display:block;width:148px;height:auto;transform:rotate(11deg);box-shadow:7px 24px 25px #20322530;z-index:2}.free-cover-type{aspect-ratio:2/3;background:#284e3c;color:#f6f2e9;padding:26px 16px;font:20px/1.9 var(--serif);border:1px solid #849984}.free-seal{position:absolute;right:-15px;top:193px;z-index:3;background:#dce8cf;border:1px solid #93ae89;border-radius:50%;width:100px;height:100px;display:flex;align-items:center;justify-content:center;gap:4px;flex-direction:column;font-size:11px;line-height:1}.free-seal strong{font:650 40px/1.1 var(--sans);letter-spacing:-.03em}.free-art-caption{font:12px/1.7 Georgia,serif;color:#557055;letter-spacing:.18em;margin:18px 0 0 5px}.invite-free-copy .eyebrow{font-size:12px;letter-spacing:.1em;margin-bottom:18px!important}.invite-free-copy .campaign-status{font-size:10px;margin-left:12px;color:#58724d}.landing .invite-free-copy h2{font:650 40px/1.45 var(--sans);letter-spacing:-.03em;margin:0 0 20px}.invite-free-copy h2>span{color:#2a694e}.invite-free-copy>p{font-size:14px;line-height:1.9;color:#53674e;margin:0 0 20px}.invite-free-copy .invite-choice{font-weight:600;color:#2c5239;margin:18px 0 24px;padding-left:16px;border-left:2px solid #91b183}.invite-free .text-link{font-size:13px;display:inline-flex;gap:35px;text-decoration:none;border-bottom:1px solid #739168;padding-bottom:9px;color:#315538}.invite-free-copy .invite-free-condition{font-size:11px;line-height:1.9;margin:20px 0 0;color:#718369}
.membership-card{border-radius:8px;padding:32px}.membership-card.premium{background:#e0e9d7}.membership-card h3{font-size:25px!important;min-height:76px;margin-bottom:12px}.membership-cta{border-radius:5px}.membership-payments{margin-bottom:14px}.membership-payments small{font-size:11px;line-height:1.9}.membership-price strong{font-size:52px}.annual-price strong{font-size:32px}
@media(min-width:1101px) and (max-width:1300px){.hero-three-dimensional{min-height:890px;padding-left:5vw;padding-right:5vw}.hero-three-dimensional .a-copy{width:44%}.hero-three-dimensional .a-copy h1{font-size:61px}.hero-three-dimensional .a-copy h1>span{font-size:.49em}.hero-devices{width:52%;right:4vw;top:172px;height:620px}.hero-device .iphone{width:252px;--device-scale:.6057692308}.hero-chat .iphone{width:260px;--device-scale:.625}.hero-reader{left:5%}.hero-chat{top:105px;right:1%}.hero-view-note{bottom:102px;right:5vw}.invite-free{gap:55px}.free-cover{width:134px;right:5px}.free-seal{right:-12px;top:177px;width:87px;height:87px}}
@media(max-width:1100px){.a-header.adopted-header{width:calc(100% - 70px);gap:24px}.adopted-header nav{gap:20px}.hero-three-dimensional{display:block;min-height:0;padding:138px 6vw 123px}.hero-three-dimensional .a-copy{width:100%;max-width:580px}.hero-three-dimensional .a-copy h1{font-size:65px}.hero-three-dimensional .a-copy h1>span{font-size:.57em}.hero-three-dimensional .a-lead{max-width:520px}.hero-portraits{inset:0 0 28% 25%}.hero-portrait img{opacity:.35;object-position:center 15%}.hero-portrait figcaption{top:105px;right:8%}.hero-devices{position:relative;top:auto;right:auto;width:100%;max-width:650px;height:725px;margin:45px auto 0}.hero-reader{left:8%;top:5px}.hero-chat{right:4%;top:100px}.hero-view-note{position:relative;bottom:auto;right:auto;text-align:center;margin:12px auto 0}.hero-three-dimensional .a-hero-bottom{left:6vw;right:6vw}.invite-free{padding:55px 6vw;gap:42px;grid-template-columns:1fr 1fr}.free-word{font-size:110px}.free-cover{width:120px;right:8px;top:39px}.free-seal{width:80px;height:80px;right:-4px;top:195px}.free-seal strong{font-size:32px}.landing .invite-free-copy h2{font-size:35px}.membership-card{padding:28px}.membership-card h3{font-size:23px!important}.membership-payments{gap:14px}.annual-payment{padding-left:14px}}
@media(max-width:700px){.a-header.adopted-header{top:8px;width:calc(100% - 44px);padding:13px 0 14px;gap:14px 8px}.adopted-header .brand{flex:1}.adopted-header .brand-symbol{width:26px;height:26px}.adopted-header .a-header-store{font-size:10px;padding:8px 10px}.adopted-header .a-header-store span{font-size:10px}.adopted-header nav{order:3;width:100%;justify-content:space-between;gap:18px;font-size:11px}.hero-three-dimensional{padding:148px 23px 114px;min-height:0}.hero-three-dimensional .a-copy{max-width:100%;width:100%}.hero-three-dimensional .a-tagline{font-size:17px!important;margin-bottom:22px}.hero-three-dimensional .a-copy h1{font-size:51px;line-height:1.3}.hero-three-dimensional .a-copy h1>span{font-size:.49em;white-space:normal;margin-top:14px}.hero-three-dimensional .a-lead{font-size:12px;line-height:2;margin-top:19px}.hero-three-dimensional .hero-price{margin-top:19px;padding-left:13px}.hero-three-dimensional .hero-price>span{font-size:11px}.hero-three-dimensional .hero-price strong{font-size:43px}.hero-three-dimensional .hero-price p{font-size:14px}.hero-three-dimensional .hero-actions{gap:12px;margin-top:21px}.hero-three-dimensional .button{padding:12px 16px;min-height:43px;font-size:11px}.hero-three-dimensional .release-notice{font-size:10px!important}.hero-portraits{inset:0 0 14% 0}.hero-portrait img{object-position:60% 12%;opacity:.26;mask-image:linear-gradient(90deg,transparent,#000 80%)}.hero-portrait figcaption{top:116px;right:23px;font-size:11px;letter-spacing:0}.hero-portrait figcaption small{font-size:9px;line-height:1.5}.hero-devices{width:100%;max-width:430px;height:495px;margin:40px auto 0;perspective:1500px}.hero-device .iphone{width:190px;--device-scale:.4567307692}.hero-chat .iphone{width:196px;--device-scale:.4711538462}.hero-reader{top:4px;left:2%;transform:rotateX(6deg) rotateY(-14deg) rotateZ(-9deg)}.hero-chat{top:87px;right:-1%;transform:rotateX(5deg) rotateY(-15deg) rotateZ(9deg)}.hero-device .iphone:before{border-radius:30px;transform:translateZ(-7px) translateX(7px) translateY(3px);box-shadow:5px 9px 1px #090f17,15px 25px 40px #0c182255}.hero-device-label{font-size:8px;margin-top:17px;letter-spacing:.04em}.hero-view-note{font-size:9px;margin-top:15px}.hero-three-dimensional .a-hero-bottom{bottom:22px;left:23px;right:23px;flex-wrap:wrap;gap:8px;padding-top:13px}.hero-author-controls{gap:15px;flex-wrap:nowrap;justify-content:space-between;width:100%}.hero-author-controls button{font-size:10px;gap:5px;padding:6px 0}.hero-author-controls button>span{font-size:10px}.hero-three-dimensional .motion-toggle{font-size:10px;margin-left:auto;padding-top:5px}.invite-free{display:flex;flex-direction:column;padding:43px 24px 45px;gap:22px;align-items:stretch}.invite-free-art{min-height:220px;max-width:345px;width:100%;margin:0 auto}.free-word{font-size:113px}.free-cover{width:105px;top:0;right:13px}.free-seal{width:74px;height:74px;right:0;top:153px;font-size:10px}.free-seal strong{font-size:30px}.free-art-caption{font-size:10px;letter-spacing:.15em;margin-top:12px}.landing .invite-free-copy h2{font-size:35px;line-height:1.4;margin-bottom:17px}.invite-free-copy>p{font-size:13px}.invite-free-copy .invite-choice{font-size:13px;margin:17px 0 22px}.invite-free-copy .invite-free-condition{font-size:10px;margin-top:18px}.invite-free .text-link{font-size:12px}.membership-card{padding:27px 24px}.membership-card h3{font-size:24px!important;min-height:0;margin-bottom:19px}.membership-card ul{margin-bottom:24px}.membership-cta{padding:14px 12px;font-size:12px}.membership-payments{gap:14px}.annual-payment{padding-left:14px}.membership-payments .membership-price strong{font-size:46px}.annual-price strong{font-size:30px}.membership-payments small{font-size:10px;line-height:1.85}}
@media(max-width:359px){.a-header.adopted-header{width:calc(100% - 38px)}.hero-three-dimensional{padding-left:20px;padding-right:20px;padding-top:145px}.hero-three-dimensional .a-copy h1{font-size:46px}.hero-three-dimensional .a-copy h1>span{font-size:.47em}.hero-three-dimensional .a-lead{font-size:11px}.hero-three-dimensional .button{font-size:10px;padding:11px 13px}.hero-three-dimensional .release-notice{font-size:9px!important}.hero-devices{height:437px;margin-top:35px}.hero-device .iphone{width:164px;--device-scale:.3942307692}.hero-chat .iphone{width:170px;--device-scale:.4086538462}.hero-reader{left:0;top:5px}.hero-chat{right:-1%;top:82px}.hero-device-label{font-size:7px}.hero-author-controls{gap:7px}.hero-author-controls button{font-size:9px;gap:4px}.hero-author-controls button>span{display:none}.hero-three-dimensional .a-hero-bottom{left:20px;right:20px}.hero-view-note{font-size:8px}.invite-free{padding-left:20px;padding-right:20px}.free-word{font-size:102px}.free-cover{width:98px;right:10px}.free-seal{width:66px;height:66px;top:147px;right:0}.landing .invite-free-copy h2{font-size:32px}.membership-card{padding:24px 19px}.membership-payments{gap:8px}.annual-payment{padding-left:10px}.membership-payments .membership-price strong{font-size:40px}.annual-price strong{font-size:27px}}
@media(prefers-reduced-motion:reduce){.hero-portrait{transition:none}.hero-phone-float,.hero-portrait img{animation:none!important}}
/* 投影で広がる端末の外形までFV内に収める。 */
@media(min-width:1101px){.hero-three-dimensional{min-height:960px}.hero-devices{top:115px;height:740px}.hero-device .iphone{width:260px;--device-scale:.625}.hero-chat .iphone{width:266px;--device-scale:.6394230769}.hero-reader{top:0}.hero-chat{top:65px}}
@media(min-width:1101px) and (max-width:1300px){.hero-devices{top:135px}.hero-device .iphone{width:252px;--device-scale:.6057692308}.hero-chat .iphone{width:260px;--device-scale:.625}.hero-chat{top:55px}}
@media(min-width:701px) and (max-width:1100px){.hero-three-dimensional{display:flex;min-height:925px;padding:146px 6vw 140px}.hero-three-dimensional .a-copy{width:43%;max-width:none}.hero-three-dimensional .a-copy h1{font-size:clamp(45px,5.8vw,62px)}.hero-three-dimensional .a-copy h1>span{font-size:.5em;white-space:nowrap}.hero-three-dimensional .a-lead{font-size:12px}.hero-three-dimensional .hero-actions{gap:13px}.hero-three-dimensional .button{font-size:11px;padding:12px 15px}.hero-three-dimensional .release-notice{font-size:10px!important}.hero-devices{position:absolute;top:145px;right:4vw;width:51%;max-width:none;height:680px;margin:0}.hero-device .iphone{width:230px;--device-scale:.5528846154}.hero-chat .iphone{width:236px;--device-scale:.5673076923}.hero-reader{left:3%;top:0}.hero-chat{right:0;top:75px}.hero-view-note{position:absolute;bottom:100px;right:5vw;text-align:right;margin:0}.hero-portraits{inset:0 0 0 35%}.hero-portrait figcaption{top:105px}}
@media(min-width:701px) and (max-width:900px){.hero-three-dimensional{min-height:870px}.hero-devices{top:155px;right:3.5vw;width:50%;height:610px}.hero-device .iphone{width:192px;--device-scale:.4615384615}.hero-chat .iphone{width:200px;--device-scale:.4807692308}.hero-reader{left:0}.hero-chat{top:70px}.hero-three-dimensional .a-copy h1{font-size:clamp(43px,5.7vw,52px)}.hero-three-dimensional .a-copy h1>span{font-size:.48em}.hero-three-dimensional .a-lead{font-size:11px}.hero-three-dimensional .hero-actions{display:block}.hero-three-dimensional .release-notice{margin-top:16px!important}}
@media(max-width:700px){.hero-devices{height:590px}}
@media(max-width:359px){.hero-devices{height:515px}}
@media(min-width:1101px){.hero-portraits{inset:0 14% 0 0}.hero-portrait img{mask-image:linear-gradient(90deg,transparent 8%,#000 72%);opacity:.42}.hero-portrait figcaption{right:2%}}
.hero-portrait:after{background:linear-gradient(0deg,#202d46,transparent 42%,transparent 75%,#202d46)}
@media(min-width:1101px){.hero-portrait img{mask-image:linear-gradient(90deg,transparent 8%,#000 55%,#000 80%,transparent)}}
@media(min-width:701px) and (max-width:1100px){.hero-devices{right:8vw}}
@media(max-width:700px){.hero-devices{transform-style:flat}.hero-device .iphone{width:178px;--device-scale:.4278846154}.hero-chat .iphone{width:184px;--device-scale:.4423076923}.hero-reader{left:3%;transform:rotateX(5deg) rotateY(-12deg) rotateZ(-7deg)}.hero-chat{right:3%;transform:rotateX(4deg) rotateY(-12deg) rotateZ(7deg)}}
@media(max-width:359px){.hero-device .iphone{width:152px;--device-scale:.3653846154}.hero-chat .iphone{width:158px;--device-scale:.3798076923}.hero-reader{left:2%}.hero-chat{right:2%}}
@media(min-width:1101px) and (max-width:1300px){.hero-devices{right:6vw}}
@media(max-width:359px){.hero-reader{left:4%}.hero-chat{right:7%}}