:root{color-scheme:light;--ink:#233f50;--muted:#587080;--blue:#429bca;--line:#d5e5ee;--accent-soft:#cbe1ed;--paper:#f0f7fb;font-family:system-ui,-apple-system,"Noto Sans JP",sans-serif;color:var(--ink);background:#fff;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;line-height:1.9}a{color:inherit;text-underline-offset:5px}img{max-width:100%;object-fit:contain}a:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:5px}.skip{position:absolute;top:-100px;left:20px;background:white;padding:10px;z-index:5}.skip:focus{top:0}.wrap{width:min(1040px,calc(100% - 64px));margin-inline:auto}.site-header{display:flex;align-items:center;justify-content:space-between;min-height:100px;gap:20px}.site-header nav{display:flex;align-items:center;gap:30px}.site-header a{text-decoration:none;font-size:14px}.login{padding:8px 20px;border:1px solid var(--line);border-radius:30px}.hero{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:70px;padding-block:50px 90px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(44px,6vw,72px);line-height:1.35;letter-spacing:.04em;margin-bottom:24px}h2{font-size:clamp(28px,3.5vw,40px);line-height:1.5;letter-spacing:.02em;margin-bottom:26px}h3{font-size:19px;line-height:1.6;margin-bottom:12px}.lead{font-size:24px;font-weight:650;line-height:1.7;margin-bottom:24px}p{margin-bottom:22px}.hero-copy>p:not(.lead):not(.small){color:var(--muted)}.button{display:inline-flex;align-items:center;justify-content:center;gap:30px;border-radius:16px;padding:15px 25px;background:var(--accent-soft) url('/textures/theme-grain.svg');text-decoration:none;font-weight:700;font-size:17px;min-height:56px}.button:hover{background-color:#b7d7e8}.small,figcaption{font-size:13px;color:var(--muted);line-height:1.8}.hero .small{margin-top:12px;margin-bottom:0}figure{margin:0}figcaption{margin-top:20px;text-align:center}.promo{width:100%;max-width:420px;margin-inline:auto}.promo img{display:block;width:100%;height:auto}.image-note{margin:30px 0 0}.band{background:#fff}.intro{padding:78px 0}.text-width{max-width:690px}.text-width p{font-size:16px}.text-width .small{font-size:13px}.section{padding-block:80px}.section-heading{margin-bottom:38px}.section-number{color:var(--muted);font-size:13px;letter-spacing:.08em;margin-bottom:12px}.two-columns{display:grid;grid-template-columns:1.2fr 1fr;gap:70px;align-items:start}.steps{list-style:none;counter-reset:step;padding:0;margin:0 0 30px}.steps li{counter-increment:step;position:relative;padding-left:48px;margin-bottom:28px}.steps li:before{content:counter(step);position:absolute;left:0;top:0;color:var(--blue);font-size:25px;line-height:1.3}.steps p{color:var(--muted)}.faq{max-width:800px}.faq details{border-bottom:1px solid var(--line);padding:22px 0}.faq summary{font-weight:650;cursor:pointer;line-height:1.7;padding-right:12px}.faq details p{color:var(--muted);margin:20px 0 0}.closing{padding:75px 0;text-align:center}.footer p{font-size:14px;margin:24px 0}.footer nav{display:flex;flex-wrap:wrap;gap:16px 30px;font-size:14px}.footer .small,.footer small{font-size:12px}.footer{padding-block:55px}.footer p{overflow-wrap:anywhere}
@media(min-width:0px){.wrap{width:calc(100% - 40px)}.site-header{min-height:78px}.site-header img{width:135px}.site-header nav{gap:14px}.guide-link{display:none}.login{padding:7px 16px}.hero{grid-template-columns:1fr;gap:42px;padding-block:34px 52px}.hero-copy{text-align:center}h1{font-size:46px}.lead{font-size:21px}.hero-copy>p{font-size:15px}.two-columns{grid-template-columns:1fr;gap:28px}.section,.intro{padding-block:52px}.section-heading{margin-bottom:26px}h2{font-size:28px}h3{font-size:18px}.closing{padding:52px 0}.button{font-size:16px}.footer{padding-block:40px}.footer nav{flex-direction:column;gap:14px}}
/* Page rhythm and responsive layout */
body{line-height:1.85;overflow-wrap:break-word}
.wrap{width:min(1000px,calc(100% - 64px))}
.site-header{min-height:88px;border-bottom:1px solid var(--line)}
.hero{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:48px;padding-block:40px 56px}
h1{font-size:clamp(36px,4.5vw,56px);line-height:1.45;letter-spacing:.01em}
h2{font-size:32px;line-height:1.5;margin-bottom:24px}
h3{font-size:18px}
.lead{font-size:21px;margin-bottom:20px}
.promo{max-width:360px}
figcaption{margin-top:12px;font-size:12px}
.section,.intro{padding-block:64px}
.text-width{max-width:720px}
.intro p:last-child{margin-bottom:0}
.two-columns{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:64px;align-items:center}
.section-heading{margin-bottom:28px}
.section-number{color:#326e90;letter-spacing:.06em;margin-bottom:10px}
.steps{margin:0}
.steps li{padding-left:46px;margin-bottom:28px}
.steps li:last-child,.steps li:last-child p{margin-bottom:0}
.steps li:before{width:30px;height:30px;border-radius:50%;background:var(--paper);font-size:17px;line-height:30px;text-align:center}
#sharing .two-columns>div>p:last-child{margin-bottom:0}
.image-note{text-align:center;margin-top:24px;font-size:12px}
.faq{max-width:800px}
.faq .section-heading{margin-bottom:24px}
.faq details{padding:0}
.faq summary{padding:22px 34px 22px 0;position:relative;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:'＋';position:absolute;right:4px;top:22px;color:#326e90;font-size:20px;line-height:1.4}
.faq details[open] summary:after{content:'−'}
.faq details[open]{padding-bottom:22px}
.faq details p{margin:0 0 14px}
.faq details p:last-child{margin-bottom:0}
.closing{padding-block:36px}
.footer{padding-block:36px}
.footer nav{margin-top:24px;gap:14px 28px}
.footer p{margin:18px 0;line-height:1.8}
@media(min-width:0px){
 .wrap{width:calc(100% - 40px)}
 .site-header{min-height:72px}
 .hero{grid-template-columns:1fr;gap:28px;padding-block:32px 40px}
 h1{font-size:clamp(32px,9vw,42px);margin-bottom:18px}
 .lead{font-size:18px}
 .hero-copy>p{font-size:15px}
 .hero .promo{max-width:300px}
 .hero .small{font-size:12px}
 .button{min-height:52px;padding:13px 22px;font-size:16px}
 .section,.intro{padding-block:44px}
 h2{font-size:27px;margin-bottom:20px}
 .two-columns{grid-template-columns:1fr;gap:28px}
 .two-columns .promo{max-width:340px}
 .section-heading{margin-bottom:24px}
 .text-width p,.two-columns p{font-size:15px}
 .text-width .small{font-size:12px}
 .steps li{padding-left:42px;margin-bottom:24px}
 .faq summary{font-size:15px;padding-block:20px}
 .faq summary:after{top:20px}
 .faq details p{font-size:14px}
 .closing{padding-block:28px}
 .footer{padding-block:28px}
 .footer nav{font-size:13px;gap:12px}
}

/* Use the mobile layout on every screen size. */
.wrap{width:calc(100% - 40px);max-width:440px}
.hero h1{font-size:clamp(32px,9vw,42px)}
body{max-width:480px;margin-inline:auto}

/* Show the supplied images at the full page width without cropping. */
.hero .promo,.two-columns .promo{width:calc(100% + 40px);max-width:none;margin-inline:-20px}
.promo img{width:100%;height:auto}

/* Frame the original UI pixels; keep promotional copy as selectable text. */
:root{--promo-orange:#cc763f}
.hero .lead{color:var(--promo-orange);font-weight:800}
.screen-figure{width:100%;margin-inline:auto}
.hero-screen{max-width:355px}
.record-screen{max-width:350px}
.ui-crop{position:relative;overflow:hidden;aspect-ratio:var(--crop-ratio);background:#fff}
.ui-crop img{position:absolute;display:block;max-width:none;width:var(--crop-width);height:auto;left:var(--crop-left);top:var(--crop-top)}
.screen-figure .ui-crop{border-radius:8px;box-shadow:0 4px 20px #233f5010}
.sharing-screens{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:start}
.promo-heading{color:var(--promo-orange);font-size:29px;font-weight:800;line-height:1.5;text-align:center}
.promo-kicker{color:var(--promo-orange);font-size:15px;font-weight:700;text-align:center;margin-bottom:8px}
.promo-tip{text-align:center;font-size:14px;font-weight:650;line-height:1.7;margin-bottom:0}
.promo-message{text-align:center;font-weight:700;line-height:1.8;margin:0;font-size:18px}
.promo-message strong{font-size:22px}
#howto .section-heading,#sharing .section-heading{margin-bottom:28px}

.hero{display:flex;flex-direction:column;gap:0;padding-block:48px 44px;text-align:center}
.hero h1{font-family:'Hiragino Maru Gothic ProN',sans-serif;font-weight:900;font-size:clamp(16px,4.7vw,22px);line-height:1.5;white-space:nowrap;margin:0 0 16px;letter-spacing:0}
.hero-logo{display:block;width:90%;max-width:360px;height:auto;margin:0 auto 40px}
.hero-screen{width:100%;max-width:355px;margin:0 auto 28px}
.hero .lead{font-family:'Hiragino Maru Gothic ProN',sans-serif;font-weight:900;font-size:clamp(17px,4.9vw,23px);margin:0 0 28px;line-height:1.6}
.hero-copy{margin-bottom:24px}
.hero-copy p{margin:0 0 10px;font-size:16px}
.hero-copy p:last-child{margin-bottom:0}
.promo-heading,.promo-kicker,.promo-tip,.promo-message{font-family:'Hiragino Maru Gothic ProN',sans-serif}
.promo-heading{font-weight:900;font-size:clamp(26px,7vw,32px);line-height:1.5;margin-bottom:16px}
.promo-kicker{font-weight:900;font-size:clamp(13px,3.7vw,17px);line-height:1.8}
.promo-tip{font-weight:700}
.promo-message{font-weight:900}
#howto{background:#fff;width:100%;padding-inline:20px}
#howto .two-columns,#sharing .two-columns{gap:28px}
#howto .section-heading,#sharing .section-heading{margin-bottom:0}
#howto .promo-heading br{display:none}
#sharing .promo-message{margin-bottom:28px}
#sharing .wrap>p:not(.image-note){font-size:14px;line-height:1.9;margin-top:0}
#sharing{background:#fff}
.intro{background:var(--paper)}
.instructions{background:var(--paper);width:100%;max-width:none;padding-inline:20px;border-top:0}

.site-header{position:sticky;top:0;z-index:20;background:#fff;width:100%;max-width:480px;margin:0;min-height:64px;padding:10px 20px;border-bottom:1px solid var(--line)}
section[id]{scroll-margin-top:80px}

/* Keep the blue sections aligned with the full page, including their padding. */
#howto.wrap{width:100%;max-width:none;margin-inline:0;box-sizing:border-box}
#sharing{width:100%;margin-inline:0}
.feedback-promo{background:#fff;padding-block:28px 40px}
.feedback-promo .promo-heading{font-size:clamp(22px,6vw,28px);margin:0;text-align:center}
.feedback-promo img{display:block;width:100%;height:auto;margin:12px auto 0}

.button{background:var(--blue);color:#fff}
.button:hover{background:#3688b3}

/* Keep related copy and screens close; give each topic its own breathing room. */
.hero{padding-block:36px 48px}
.hero-logo{margin-bottom:16px}
.hero-screen{margin-bottom:24px}
.hero .lead{margin-bottom:28px}
.hero-copy{margin-bottom:24px}
.hero-copy p{margin-bottom:6px}
.intro,.instructions{padding-block:36px}
.intro h2,.instructions h2{margin-bottom:20px;font-size:25px}
.intro p{margin-bottom:16px}
.intro .small{margin-top:24px;padding-top:16px;border-top:1px solid var(--line)}
#howto{padding-block:52px 36px}
#howto .two-columns,#sharing .two-columns{gap:20px}
.promo-kicker{margin-bottom:8px}
#howto .promo-heading{margin-bottom:0}
#sharing>.section{padding-block:52px 40px}
#sharing .promo-heading{margin-bottom:12px}
#sharing .promo-message{margin:0 0 16px}
.sharing-copy>p:last-child{margin:0;font-size:14px;line-height:1.9}
.feedback-promo{padding-block:0 48px}
.feedback-promo>.wrap{border-top:1px solid var(--line);padding-top:36px}
.feedback-promo .promo-heading{font-size:clamp(21px,5.7vw,26px);line-height:1.6}
.feedback-promo img{margin-top:0}
.instructions .steps li{margin-bottom:24px}
.instructions .steps li:last-child{margin-bottom:0}
.instructions .steps h3{margin-bottom:6px;font-size:17px}
.instructions .steps p{margin-bottom:0;font-size:14px}
.instructions .steps li:before{background:#fff}
.faq{padding-block:36px 0;border-top:1px solid var(--line)}
.faq .section-heading{margin-bottom:8px}
.faq h2{font-size:25px;margin-bottom:0}
.faq summary{padding-block:20px;font-size:15px}
.closing{padding-block:32px 40px}
.footer{padding-block:28px 32px;border-top:1px solid var(--line)}
.footer nav{margin-top:20px;gap:12px}

/* Use the selected Adobe style without synthesizing a heavier weight. */
.hero h1,.hero .lead,.promo-heading,.promo-kicker,.promo-tip,.promo-message,.promo-message strong{font-family:"wanpaku-ruika",'Hiragino Maru Gothic ProN',sans-serif;font-weight:400}