@charset "UTF-8";
:root{--ivory:#fbfaf6;--ink:#1d2923;--green:#084b38;--green-dark:#043c2e;--gold:#e4c576;--line:#d5dcd4;--muted:#536158;--serif:"Yu Mincho","Hiragino Mincho ProN","Noto Serif CJK JP",serif;--sans:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--ivory);color:var(--ink);font:16px/1.85 var(--sans);-webkit-font-smoothing:antialiased}button,input{font:inherit}a{color:inherit}button,a,summary{-webkit-tap-highlight-color:transparent}button,summary{cursor:pointer}img{max-width:100%;height:auto;display:block}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.5;text-wrap:balance}p{text-wrap:pretty}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #987016;outline-offset:5px}[hidden]{display:none!important}.copy-phrase{display:inline-block}.skip-link{position:fixed;z-index:100;top:-80px;left:20px;background:white;padding:10px 18px}.skip-link:focus{top:10px}.section{width:min(1160px,calc(100% - 64px));margin:0 auto;padding:72px 0}.section-title{margin-bottom:36px}.section-title h2{font:600 clamp(28px,3vw,38px)/1.5 var(--serif);letter-spacing:.035em}.section-kicker{font-size:13px;font-weight:700;letter-spacing:.09em;color:#765a19;margin-bottom:12px}.anchor-target{display:block;scroll-margin-top:90px}
.site-header{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:12px max(24px,calc((100% - 1280px)/2));min-height:76px;background:rgba(251,250,246,.98);border-bottom:1px solid #d8ded6}.brand{display:inline-flex;align-items:center;min-height:44px;white-space:nowrap;font:600 27px/1.4 var(--serif);letter-spacing:.08em;text-decoration:none}.site-header nav{display:flex;gap:20px}.site-header nav a,.site-footer nav a{display:inline-flex;align-items:center;min-height:44px;font-size:13px;text-decoration:none}.site-header nav a:hover{text-decoration:underline}
.line-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:58px;max-width:100%;padding:12px 26px;border:1px solid transparent;border-radius:99px;background:linear-gradient(105deg,#d9b153,#f1d997 55%,#d6ae50);box-shadow:0 7px 20px #654b151a;color:#24321f;font-weight:700;font-size:16px;line-height:1.5;text-decoration:none;text-align:center;cursor:pointer}.line-button:hover{filter:brightness(1.04);box-shadow:0 8px 24px #654b1526}.line-button--header{min-height:46px;font-size:13px;padding:8px 18px;gap:8px}.line-mark{display:inline-grid;place-items:center;background:#fffdf2;color:#155635;border:1px solid #406c4d55;border-radius:6px;padding:3px 5px;font:800 12px/1.3 var(--sans);letter-spacing:0}.line-button--header .line-mark{font-size:12px}
.hero{position:relative;isolation:isolate;display:grid;grid-template-columns:1fr 1fr;min-height:570px;background:var(--green-dark);color:#fff}.hero__copy{position:relative;z-index:2;align-self:center;padding:64px 20px 64px max(40px,calc((100vw - 1160px)/2))}.eyebrow{color:#ecdbad;font-size:14px;margin-bottom:19px}.hero h1{font:600 clamp(36px,4.2vw,56px)/1.48 var(--serif);letter-spacing:.06em;margin-bottom:22px}.hero__lead{font-size:18px;color:#fff;margin-bottom:10px}.hero__audience{font-size:14px;color:#e1e9e3;max-width:430px}.hero__cta{margin-top:27px}.hero__note{font-size:13px;margin-top:12px;color:#e3e9e4}.hero__visual{min-width:0;position:relative;overflow:hidden}.hero__visual img{height:100%;width:100%;object-fit:cover;object-position:62% center}.hero__visual:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#043c2e,transparent 35%)}
.material-feature{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start}.material-feature__copy h3{font:600 29px/1.65 var(--serif);margin-bottom:20px}.material-feature__lead{font-size:16px;color:var(--muted)}.sub-note{font-size:13px;color:var(--muted);margin-top:18px}.material-feature__visual{height:200px;margin-top:24px;overflow:hidden}.material-feature__visual img{width:100%;height:100%;object-fit:cover;object-position:center 56%}.message-preview{background:#e4ece7;padding:24px;border:1px solid #c4d1c6;border-radius:8px;box-shadow:0 12px 40px #0b35200a}.message-preview__bar{display:flex;align-items:center;gap:12px;padding-bottom:22px;font-size:14px}.message-preview__bar>span:last-child{margin-left:auto;font-size:12px;color:#415647}.message-avatar{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--green);color:#efdba2;font:600 20px var(--serif)}.message-bubble{position:relative;padding:25px 27px;background:#fff;border-radius:0 12px 12px 12px}.message-heading{font-size:13px;color:#536557;margin-bottom:9px}.message-bubble h3{font:600 24px var(--serif);margin-bottom:20px}.message-bubble h3 small{font:400 13px var(--sans);margin-left:9px}.message-bubble dl{margin:0}.message-bubble dl>div{display:flex;justify-content:space-between;align-items:center;gap:10px;border-top:1px solid #dee4de;padding:12px 0}.message-bubble dt{font-size:14px}.message-bubble dt span{display:block;font-size:12px;color:#536557}.message-bubble dd{margin:0;font:500 27px var(--serif);white-space:nowrap}.message-bubble dd span{font:400 13px var(--sans);margin-left:5px}.message-bubble>p:last-child{margin-top:12px;font-size:13px;color:#495a4d}.message-disclosure{font-size:13px;margin-top:16px;color:#405447}
.concerns{padding-top:0}.concern-grid{display:grid;grid-template-columns:1fr 1fr;gap:38px;list-style:none;padding:0;margin:0}.concern-grid li{display:grid;grid-template-columns:108px 1fr;gap:22px;border-top:1px solid var(--line);padding-top:24px}.concern-media{width:108px;height:90px;overflow:hidden}.concern-media img{height:100%;width:100%;object-fit:cover}.concern-grid h3{font-size:18px;margin-bottom:8px}.concern-grid p{color:var(--muted);font-size:14px}
.review-cta{text-align:center;padding-top:40px;padding-bottom:50px}.review-cta p{font:600 22px var(--serif);margin-bottom:20px}.teacher{display:grid;grid-template-columns:1fr .7fr;align-items:center;gap:70px;border-top:1px solid var(--line);padding:50px 0}.teacher-copy h2{font:600 35px var(--serif);margin-bottom:10px}.teacher-meta{font-size:14px;color:var(--muted);margin-bottom:22px}.teacher-policy{margin-bottom:12px;font-size:17px;color:var(--green)}.teacher-policy-body{font-size:15px;color:var(--muted)}.mid-cta{text-align:center}.steps{padding-top:50px}.steps ol{display:grid;grid-template-columns:repeat(3,1fr);list-style:none;padding:0;margin:0;gap:26px}.steps li{display:flex;gap:16px;border-top:1px solid var(--line);padding-top:24px}.steps b{font:500 32px var(--serif);color:#765a19}.steps h3{font-size:18px;margin-bottom:8px}.steps p{font-size:14px;color:var(--muted)}
.faq{padding-top:0;max-width:900px}.faq-list details{border-top:1px solid var(--line)}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{display:flex;align-items:center;gap:16px;min-height:68px;padding:16px 0;list-style:none;font-size:16px;font-weight:600}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:before{content:"Q";display:grid;place-items:center;flex-shrink:0;width:30px;height:30px;background:var(--green);border-radius:50%;color:#fff;font-size:14px}.faq-list summary:after{content:"＋";margin-left:auto;flex-shrink:0}.faq-list details[open] summary:after{content:"−"}.faq-list details>div{padding:0 20px 24px 46px;font-size:15px;color:#42584a}
.final-cta{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;width:min(1240px,calc(100% - 48px));margin:0 auto 60px;padding:48px 55px;background:var(--green-dark);color:white}.final-cta h2{font:500 35px/1.55 var(--serif);margin-bottom:15px}.final-cta__copy p{font-size:15px;color:#e0eae2}.final-cta__action{text-align:center}.qr-placeholder{grid-column:1/-1;justify-self:center;display:flex;align-items:center;gap:20px;font-size:14px}.qr-placeholder>div{width:166px;height:166px;background:white;padding:8px}.qr-placeholder a{display:block;min-width:150px;min-height:150px}.qr-placeholder img{width:150px;height:150px;image-rendering:pixelated}.site-footer{display:grid;grid-template-columns:1fr 1fr;gap:30px;padding:32px max(24px,calc((100% - 1160px)/2));border-top:1px solid var(--line);background:#f2f2eb}.site-footer>div>p{font-size:13px;margin:10px 0;color:#47564d}.site-footer nav{display:flex;gap:24px}.risk-note{font-size:14px;color:#45564a;line-height:1.9}.site-footer__chart-credit{grid-column:1/-1;color:#48564c;font-size:12px}.site-footer__chart-credit a{display:inline-flex;align-items:center;min-height:44px;text-underline-offset:4px}.mobile-sticky{display:none}
.local-preview-banner{font-size:12px!important}dialog{border:0;padding:34px;width:min(440px,calc(100% - 32px));border-radius:8px;color:var(--ink)}dialog::backdrop{background:#001c14b3}dialog h2{font-size:22px;margin-bottom:18px}.dialog-close{position:absolute;right:8px;top:4px;min-width:44px;min-height:44px;background:none;border:0;font-size:26px}.dialog-ok{margin-top:20px;width:100%;min-height:46px;border:0;background:var(--green);color:white;border-radius:24px}
@media(max-width:1050px){.site-header nav{display:none}.hero__copy{padding-left:32px}.material-feature{gap:36px}.teacher{gap:34px}.line-button{font-size:15px}}
@media(max-width:760px){.section{width:calc(100% - 40px);padding:46px 0}.material-feature{grid-template-columns:1fr;gap:26px}.material-feature__visual{display:none}.concerns{padding-top:0}.concern-grid{grid-template-columns:1fr;gap:24px}.teacher{grid-template-columns:1fr;gap:28px}.steps ol{grid-template-columns:1fr;gap:20px}.steps li{padding-top:20px}.faq{padding-top:0}.final-cta{grid-template-columns:1fr;padding:36px 24px;gap:25px;margin-bottom:0;width:100%}.site-footer{grid-template-columns:1fr;gap:22px}.section-title{margin-bottom:24px}.sub-note{font-size:13px}.hero__copy{padding:40px 24px}.hero h1{font-size:35px}.hero__lead{font-size:16px}.hero__audience{font-size:14px}}
@media(max-width:640px){body{padding-bottom:88px}.site-header{position:relative;min-height:56px;padding:6px 20px}.site-header .brand{font-size:23px}.site-header .line-button{display:none}.hero{display:flex;flex-direction:column;min-height:0}.hero__copy{display:block;padding:28px 24px 26px}.hero h1{font-size:36px;line-height:1.42;margin-bottom:14px}.eyebrow{font-size:13px;margin-bottom:12px}.hero__lead{font-size:16px;margin-bottom:8px}.hero__audience{font-size:14px;line-height:1.7}.hero__cta{margin-top:22px}.hero__cta .line-button{width:100%;font-size:15px;gap:10px;padding:12px}.hero__note{font-size:13px;text-align:center;margin-top:10px}.hero__visual{height:170px}.hero__visual:after{background:linear-gradient(180deg,#043c2e,transparent 36%)}.hero__visual img{object-position:center 58%}.section-title h2{font-size:27px}.material-feature__copy h3{font-size:25px}.material-feature__lead{font-size:15px}.message-preview{padding:18px}.message-bubble{padding:20px}.message-bubble h3{font-size:22px}.message-preview__bar{gap:9px}.concern-grid li{grid-template-columns:82px 1fr;gap:17px}.concern-media{width:82px;height:84px}.concern-grid h3{font-size:17px}.teacher-copy h2{font-size:32px}.review-cta p{font-size:20px}.review-cta .line-button,.mid-cta .line-button,.final-cta .line-button{width:100%;padding:12px;font-size:15px}.final-cta h2{font-size:30px}.faq-list summary{font-size:15px;gap:10px}.faq-list details>div{padding-left:40px}.mobile-sticky{position:fixed;z-index:40;right:14px;bottom:calc(12px + env(safe-area-inset-bottom));left:14px;display:flex;min-height:56px;padding:10px;font-size:14px;opacity:0;transform:translateY(25px);pointer-events:none;transition:opacity .2s,transform .2s}.mobile-sticky.is-visible{opacity:1;transform:none;pointer-events:auto}.qr-placeholder{display:none}.site-footer__chart-credit{line-height:1.8}.site-footer__chart-credit a{font-size:12px}}
@media(max-width:350px){.hero__copy{padding:22px 20px}.hero h1{font-size:32px}.hero__lead br{display:none}.hero__audience{font-size:13px}.hero__cta{margin-top:17px}.hero__visual{height:150px}.section-title h2{font-size:25px}.line-button,.hero__cta .line-button,.review-cta .line-button,.mid-cta .line-button,.final-cta .line-button{font-size:13px;gap:7px}.line-mark{font-size:12px}.message-preview{padding:14px}.message-bubble{padding:17px}.message-bubble dt{font-size:13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}