/* Muhenkan LP — キーボードの世界観（2026-10-12、案Bを採用）。
   筐体の灰色、キートップの白、刻印の墨、かな刻印の朱。キーの形は「押す」ことを伝える場所だけに使う。
   法務ページ（legal.css）も、この変数と共通クラス（site-header / brand / shell / site-footer / legal-links）を使う。 */
:root{color-scheme:light;
  --chassis:#dadde1;--chassis-deep:#c5c9ce;--cap:#f8f8f6;--cap-edge:#b4b8be;--print:#22262b;--sub:#555a61;--kana:#c8442d;--kana-deep:#a3361f;--screen:#fff;--mark:#e3e7ec;--mark-fix:#f6ddd6;
  --ink:var(--print);--ink-soft:#33373d;--muted:var(--sub);--line:var(--chassis-deep);--line-soft:#d2d5d9;--washi:var(--cap);
  --accent:var(--kana-deep);--accent-strong:#86291a;--accent-line:#d7a296;
  --font:'Noto Sans JP Variable','Yu Gothic UI','Yu Gothic',Meiryo,sans-serif;--serif:var(--font);--mono:Consolas,'Liberation Mono',monospace;--shell:1180px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{margin:0;background:var(--chassis);color:var(--print);font:15px/1.9 var(--font);letter-spacing:.01em;-webkit-font-smoothing:antialiased}
h1,h2,h3,p,figure,ol,ul{margin:0}
a{color:inherit}
button{font:inherit;cursor:pointer}
[hidden]{display:none!important}
:focus-visible{outline:3px solid var(--kana);outline-offset:3px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.shell{width:min(var(--shell),calc(100% - 48px));margin-inline:auto}
h1,h2,h3,.hero-lead,.hero-description,.section-description,summary,.button{word-break:keep-all;word-break:auto-phrase;overflow-wrap:anywhere}
.skip-link{position:fixed;z-index:30;top:10px;left:10px;padding:10px 20px;color:#fff;background:var(--print);transform:translateY(-150%)}
.skip-link:focus{transform:none}
main{overflow-x:clip}
kbd{font:600 12px var(--font);color:var(--print);background:var(--cap);border:1px solid var(--cap-edge);border-bottom-width:3px;border-radius:5px;padding:1px 8px;white-space:nowrap}

/* 共通ヘッダー（LPと法務ページ） */
.site-header{position:sticky;top:0;z-index:20;background:#dadde1ee;border-bottom:1px solid var(--chassis-deep);backdrop-filter:blur(10px)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;text-decoration:none;white-space:nowrap}
.header-tagline{font-size:12px;color:var(--sub)}
.site-header nav{display:flex;gap:28px;margin-left:auto;font-size:14px}
.site-header nav a{text-decoration:none;padding-block:8px}
.site-header nav a:hover{color:var(--kana-deep)}

.button{display:inline-flex;align-items:center;justify-content:center;min-height:54px;padding:0 30px;border-radius:8px;font-weight:700;font-size:15px;text-decoration:none;white-space:nowrap;background:var(--print);color:#fff;border:1px solid var(--print);transition:background .15s,border-color .15s}
.button:hover{background:var(--kana-deep);border-color:var(--kana-deep)}
.button-small{min-height:42px;padding:0 18px;font-size:13px}
.button-quiet{background:var(--cap);color:var(--print);border-color:var(--cap-edge);border-bottom-width:4px}
.button-quiet:hover{background:#fff;color:var(--print);border-color:var(--cap-edge)}
.text-link{display:inline-flex;align-items:center;gap:8px;min-height:44px;font-size:14px;font-weight:600;text-decoration:underline;text-decoration-color:var(--accent-line);text-underline-offset:5px}
.text-link:hover{color:var(--kana-deep)}
.section-description{font-size:15px;line-height:2;color:var(--ink-soft)}
.note{font-size:13px;color:var(--sub);margin-top:24px}

/* 冒頭：見出しの左上にローマ字が打たれ、見出しが日本語で確定する。ローマ字は残り、押すともう一度。 */
.hero{text-align:center;padding:72px 0 96px}
.hero-head{display:inline-grid;justify-items:start;max-width:100%}
.title-romaji{display:inline-flex;align-items:center;gap:10px;max-width:100%;margin:0 0 6px;padding:6px 0;background:none;border:0;font:500 clamp(14px,1.6vw,19px)/1.4 var(--mono);color:var(--ink-soft);text-align:left}
.title-typed{display:inline-block;white-space:nowrap;padding-bottom:3px;border-bottom:2px dotted var(--kana)}
.hero-title{justify-self:stretch;font-size:clamp(40px,6vw,84px);font-weight:900;letter-spacing:-.03em;line-height:1.22}
.is-playing .title-typed{animation:type .75s steps(var(--chars,37)) .1s both}
.is-playing .hero-title{animation:title-confirm .35s ease-out .9s both}
@keyframes type{from{clip-path:inset(0 100% 0 0)}to{clip-path:inset(0 0 0 0)}}
@keyframes title-confirm{from{opacity:.2;filter:blur(5px)}to{opacity:1;filter:none}}
@keyframes title-fade{from{opacity:.2}to{opacity:1}}
.hero-lead{max-width:36em;margin:28px auto 0;font-size:19px;font-weight:700;line-height:1.8}
.hero-lead-row{display:flex;justify-content:center;gap:.75em}
.hero-lead-row>span{white-space:nowrap}
.hero-lead-conclusion{display:block;margin-top:8px;font-size:clamp(22px,2.4vw,28px)}
.hero-description{max-width:36em;margin:12px auto 0;font-size:15px;color:var(--ink-soft)}

/* デモ：画面の真下にキーボードの最下段。押すと画面が変わる関係を見せる。 */
.desk{margin:56px auto 0;max-width:980px;text-align:left}
.screen{background:var(--screen);border:10px solid #3a3f45;border-radius:14px;padding:28px 32px;box-shadow:0 30px 60px -30px #2228}
.screen-row{display:grid;grid-template-columns:150px 1fr;gap:20px;align-items:start}
.screen-out{margin-top:20px;padding-top:20px;border-top:1px solid var(--mark)}
.screen-tag{font-size:12px;color:var(--sub);padding-top:6px}
.romaji{font:20px/1.7 var(--mono);overflow-wrap:anywhere;word-break:break-all;color:#30353b}
.romaji .slip{text-decoration:underline wavy var(--kana);text-decoration-thickness:1px;text-underline-offset:6px}
#japanese{font-size:24px;line-height:1.7;font-weight:700}
#japanese mark{background:var(--mark);color:inherit;border-radius:3px;padding:0 .08em}
#japanese mark.fix{background:var(--mark-fix)}
#japanese::after{content:'';display:inline-block;width:2px;height:1em;margin-left:4px;vertical-align:-.12em;background:var(--kana)}
.hero-demo.is-typing #japanese::after,.hero-demo.is-converting #japanese::after{display:none}
.hero-demo.is-typing .romaji::after{content:'';display:inline-block;width:2px;height:1.05em;margin-left:2px;vertical-align:-.15em;background:var(--kana);animation:blink .5s steps(2) infinite alternate}
.hero-demo.is-converting #japanese{color:var(--sub)}
.hero-demo.just-converted .screen-out{animation:result-in .35s ease-out}
.keyrow{display:flex;gap:8px;justify-content:center;margin-top:28px;padding:16px;background:var(--chassis-deep);border-radius:12px;box-shadow:inset 0 2px 6px #0002}
.cap{display:inline-grid;place-items:center;min-width:64px;height:64px;padding:0 12px;background:var(--cap);border:1px solid var(--cap-edge);border-bottom-width:5px;border-radius:8px;font-size:13px;font-weight:600;color:var(--print);line-height:1.25;text-align:center}
.cap-side{min-width:56px;color:var(--sub);font-weight:500}
.cap-space{flex:1;max-width:300px}
.cap-kana{font-size:10.5px}
.cap-key{min-width:118px;border-color:var(--kana);border-bottom-width:6px;box-shadow:0 0 0 3px #c8442d22;transition:transform .07s,border-bottom-width .07s}
.cap-key span{font-size:17px;font-weight:800}
.cap-key small{font-size:10px;color:var(--kana-deep);font-weight:600}
button.cap-key:hover{background:#fff}
button.cap-key:active{transform:translateY(3px);border-bottom-width:3px}
.hero-demo.just-converted .keyrow .cap-key{animation:press .2s}
.demo-foot{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px 20px;margin-top:16px;font-size:12px;color:var(--sub)}
.legend{display:inline-flex;align-items:center;gap:6px;margin-left:12px}
.swatch{display:inline-block;width:12px;height:10px;border-radius:2px;background:var(--mark)}
.swatch-fix{background:var(--mark-fix);margin-left:10px}
.example-selector{display:flex;gap:6px}
.example-selector button{min-height:36px;background:none;border:1px solid transparent;border-radius:5px;padding:4px 10px;color:var(--sub)}
.example-selector button[aria-pressed=true]{background:var(--cap);border-color:var(--cap-edge);color:var(--print);font-weight:600}
.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:16px 28px;margin-top:48px;font-size:13px;color:var(--sub)}
@keyframes press{50%{transform:translateY(3px)}}
@keyframes blink{to{opacity:.2}}
@keyframes result-in{from{transform:translateY(4px)}to{transform:none}}

.legend-key{font-size:12px;font-weight:700;color:var(--kana-deep);letter-spacing:.06em}

/* 帯：キートップの白い面。使い分けと長文の2か所だけ。 */
.band{background:var(--cap);border-block:1px solid var(--cap-edge);padding:88px 0}
.band-head{display:grid;grid-template-columns:1.2fr 1fr;gap:56px;align-items:end}
.band h2,.long h2,.aside h2,.how h2,.faq h2{font-size:clamp(28px,3.4vw,42px);font-weight:900;letter-spacing:-.02em;line-height:1.4}
.band-sub{display:block;font-size:clamp(18px,1.9vw,22px);font-weight:700;letter-spacing:0;color:var(--ink-soft);margin-bottom:10px}
.join{font-size:.62em;font-weight:800}
.pick{font-style:normal;background:linear-gradient(transparent 62%,var(--accent-line) 62%)}
.section-label{display:block;font-size:14px;font-weight:700;line-height:1.5;letter-spacing:.06em;color:var(--kana-deep);margin-bottom:16px}
.lanes{display:grid;grid-template-columns:1fr 1.45fr;gap:20px;margin-top:48px}
.lane{background:#fff;border:1px solid var(--line-soft);border-radius:10px;padding:24px 26px;display:flex;flex-direction:column}
.lane-label{font-size:12px;color:var(--sub)}
.lane h3{font-size:21px;font-weight:800;margin-top:2px}
.lane-sample{flex:1;display:flex;flex-direction:column;justify-content:center;gap:12px;margin-block:18px;padding:18px 20px;border-radius:8px;background:var(--chassis);border:1px solid var(--chassis-deep)}
.sample-reading{align-self:flex-start;font-size:17px;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:6px}
.sample-candidates{align-self:flex-start;display:grid;min-width:190px;background:#fff;border:1px solid var(--cap-edge);border-radius:6px;box-shadow:0 8px 20px #0000001a;padding:4px;font-size:15px}
.sample-candidates>span{display:flex;gap:12px;padding:4px 10px;border-radius:4px}
.sample-candidates i{font-style:normal;font-size:12px;color:var(--sub);width:10px}
.sample-candidates .is-chosen{background:var(--mark)}
.sample-romaji{font:14px/1.7 var(--mono);color:#e8ebee;background:#3a3f45;border-radius:6px;padding:10px 14px;overflow-wrap:anywhere;word-break:break-all}
.sample-arrow{font-size:12px;color:var(--kana-deep);font-weight:600}
.sample-text{font-size:18px;font-weight:700;line-height:1.8}
.lane-muhenkan{border-color:var(--kana)}
.lane-muhenkan .lane-label{color:var(--kana-deep)}
.lane-keys{font-size:13px;color:var(--sub)}

/* ほかの画面を見ながら：資料・チャット・Muhenkanの小窓 */
.aside{display:grid;grid-template-columns:.9fr 1.1fr;gap:72px;align-items:center;padding:96px 0;border-top:1px solid var(--chassis-deep)}
.long{padding:88px 0}
.aside .section-description{margin-top:20px}
.aside-steps{list-style:none;counter-reset:step;padding:0;margin-top:36px;border-bottom:1px solid var(--chassis-deep)}
.aside-steps li{counter-increment:step;display:grid;grid-template-columns:36px 1fr;border-top:1px solid var(--chassis-deep);padding:18px 0}
.aside-steps li::before{content:counter(step);grid-row:1/3;display:grid;place-items:center;width:26px;height:26px;background:var(--cap);border:1px solid var(--cap-edge);border-bottom-width:3px;border-radius:5px;font-size:12px;font-weight:700}
.aside-steps h3{font-size:16px;font-weight:800}
.aside-steps p{font-size:14px;color:var(--sub);margin-top:4px}
.scene{min-width:0}
.scene-frame{position:relative;aspect-ratio:16/11;background:#c9ced4;border:8px solid #3a3f45;border-radius:12px;overflow:hidden}
.scene-window{position:absolute;background:#fff;border:1px solid var(--cap-edge);border-radius:6px;box-shadow:0 12px 30px #0000001f;overflow:hidden}
.scene-bar{display:flex;align-items:center;gap:5px;padding:7px 12px;border-bottom:1px solid var(--mark);font-size:11px;line-height:1.6;color:var(--sub);white-space:nowrap}
.scene-bar i{width:7px;height:7px;border-radius:50%;background:var(--chassis-deep)}
.scene-bar span{margin-left:8px}
.doc-title{font-size:15px;font-weight:800;color:var(--print);margin-bottom:4px}
.doc-line{display:block;height:6px;width:88%;border-radius:3px;background:var(--mark);margin-top:12px}
.doc-line.short{width:58%}
.scene-call{left:4%;top:6%;width:62%;height:66%}
.scene-call-body{display:grid;grid-template-columns:1fr 26%;gap:8px;padding:10px;height:calc(100% - 30px);background:#30353b}
.call-share{background:#fff;border-radius:4px;padding:12px 14px;white-space:nowrap;overflow:hidden}
.call-people{display:grid;grid-auto-rows:1fr;gap:8px}
.call-person{display:grid;place-items:center;background:#454b52;border-radius:4px}
.call-person i{width:34%;aspect-ratio:1;border-radius:50%;background:#6b7178}
.call-person.is-speaking{box-shadow:inset 0 0 0 2px var(--kana)}
.scene-doc{right:4%;top:16%;width:34%;height:52%}
.scene-doc-body{padding:10px 14px;font-size:12px;line-height:1.9;color:var(--ink-soft);white-space:nowrap;overflow:hidden}
.scene-muhenkan{position:absolute;left:20%;bottom:5%;width:62%;background:#30353b;color:#e8ebee;border:1px solid var(--kana);border-radius:6px;box-shadow:0 18px 36px #00000040}
.scene-muhenkan-bar{display:flex;align-items:center;gap:7px;padding:10px 14px 0;font-size:10px;color:#aab0b7;white-space:nowrap}
.status-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--kana)}
.scene-brand{margin-left:auto;font-weight:700}
.scene-muhenkan p{font:14px/1.6 var(--mono);padding:6px 14px 12px;overflow-wrap:anywhere;word-break:break-all}
.scene figcaption{font-size:12px;color:var(--sub);margin-top:12px}

/* 長文：ローマ字で埋まった入力ウィンドウが、ひと押しでまとめて日本語になる。 */
.long-demo{display:grid;grid-template-columns:1fr auto 1fr;gap:24px;align-items:stretch;margin-top:48px}
.long-key{display:flex;align-items:center;justify-content:center}
.long-demo.is-pressed .long-key .cap-key{animation:press .2s}
.long-ghost{color:transparent}
.long-pane{border-radius:10px;padding:20px 22px}
.long-input{background:#30353b;color:#e8ebee;border:1px solid #3a3f45}
.long-output{background:#fff;border:1px solid var(--line-soft)}
.long-tag{display:flex;justify-content:space-between;gap:12px;font-size:12px;color:#aab0b7;margin-bottom:12px}
.long-output .long-tag{color:var(--sub)}
.long-romaji{font:14px/1.75 var(--mono);overflow-wrap:anywhere;word-break:break-all}
.long-japanese{font-size:16px;line-height:1.8;font-weight:600}
.long-demo.is-waiting .long-japanese{color:transparent}
.long-demo.is-converting .long-japanese{color:var(--sub)}
.long-demo.just-converted .long-output{animation:flash .6s ease-out}
@keyframes flash{from{box-shadow:0 0 0 4px #c8442d55}to{box-shadow:0 0 0 0 #c8442d00}}

.how{padding:88px 0;text-align:center;border-top:1px solid var(--chassis-deep)}
.sequence{list-style:none;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:48px}
.sequence li{display:grid;justify-items:center;align-content:start;gap:10px}
.sequence h3{font-size:16px;font-weight:800;margin-top:6px}
.sequence p{font-size:14px;color:var(--sub)}
.cap-mini{height:56px;min-width:104px;font-size:15px;font-weight:800}
.mini-window{display:block;width:min(100%,250px);text-align:left;background:#30353b;color:#e8ebee;border:1px solid var(--kana);border-radius:6px;box-shadow:0 10px 22px #00000030}
.mini-window-bar{display:flex;align-items:center;gap:6px;padding:7px 10px 0;font-size:10px;line-height:1.4;color:#aab0b7}
.mini-window-text{display:block;padding:4px 10px 9px;font:12.5px/1.55 var(--mono);white-space:nowrap}
.mini-window-text::after{content:'';display:inline-block;width:2px;height:1em;margin-left:2px;vertical-align:-.15em;background:var(--kana);animation:blink .5s steps(2) infinite alternate}

.pricing{padding:88px 0;border-top:1px solid var(--chassis-deep)}
.plan{max-width:980px;margin-inline:auto}
.plan-comparison{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:28px}
.plan-tier{border:1px solid var(--cap-edge);border-radius:8px;padding:42px 16px 20px;position:relative}
.plan-tier h3{font-size:20px;margin:0}.plan-tier p{font-size:13px;margin-top:14px}
.plan-tier .tier-price{font-size:24px;font-weight:900;white-space:nowrap}.tier-price span{font-size:12px;font-weight:400}
.plan-tier-recommended{border:2px solid var(--kana-deep);padding:41px 15px 19px}
.plan-tier .tier-recommendation{position:absolute;top:10px;left:15px;margin:0;font-weight:700;color:var(--kana-deep)}
.tier-allowance{font-weight:700}
.plan{background:var(--cap);border:1px solid var(--cap-edge);border-bottom-width:5px;border-radius:12px;padding:36px}
.plan-name{font-size:22px;font-weight:900}
.plan-price{font-size:clamp(28px,3vw,36px);font-weight:900;margin-top:10px;padding:14px 0;border-block:1px solid var(--mark)}
.plan-for{font-size:12px;color:var(--sub);margin-top:10px}
.plan-points{padding-left:1.2em;margin-top:20px;display:grid;gap:8px}
.plan-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.plan-meta{font-size:13px;color:var(--sub);margin-top:16px}
.plan-meta a{color:var(--kana-deep)}
.plan-details{margin:20px 0;font-size:14px;color:var(--ink-soft)}
.plan-details summary{cursor:pointer;font-weight:600}
.plan-details .plan-points{font-size:13px}
.getting-started{display:grid;grid-template-columns:.8fr 1.2fr;gap:72px;padding:72px 0;border-top:1px solid var(--chassis-deep)}
.getting-started h2{font-size:clamp(28px,3.4vw,42px);font-weight:900;line-height:1.4}
.start-guide h3{font-size:20px;font-weight:800}
.start-guide .start-ubuntu{margin-top:28px}
.download-check{margin:16px 0;font-size:13px;color:var(--sub)}
.download-check summary{cursor:pointer}
.download-check .plan-meta{margin-top:8px}
.start-steps{margin-top:18px;padding-left:1.4em;font-size:14px;display:grid;gap:6px}
.plan .text-link{margin-top:6px}
/* これから：料金とは別の小さな節。予定であって約束ではないので、静かに置く。 */
.early-access{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px 72px;align-items:start;padding:64px 0;border-top:1px solid var(--chassis-deep)}
.early-access h2{font-size:24px;font-weight:900;line-height:1.5}
.next-list{list-style:none;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px;font-size:15px;font-weight:600}
.next-list li{padding:14px 18px;border:1px dashed var(--cap-edge);border-radius:8px}
.next-list li:last-child:nth-child(odd){grid-column:1/-1}
.next-head .note{margin-top:16px}
.next-head .text-link{margin-top:8px}

.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:72px;padding:88px 0;border-top:1px solid var(--chassis-deep)}
.faq-intro>p{font-size:14px;color:var(--sub);margin-top:14px}
.faq-intro .text-link{margin-top:16px}
.faq-list{display:grid;gap:10px}
.faq-list details{background:var(--cap);border:1px solid var(--cap-edge);border-radius:8px;padding:0 22px}
.faq-list summary{display:flex;justify-content:space-between;align-items:center;gap:16px;cursor:pointer;font-weight:700;font-size:16px;padding:16px 0;list-style:none}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary>span{color:var(--kana-deep);font-size:22px;font-weight:400;transition:transform .2s}
.faq-list details[open] summary>span{transform:rotate(45deg)}
.faq-list details>div{padding-bottom:18px;color:var(--ink-soft);font-size:14px}
.faq-list details>div p+p{margin-top:10px}
.faq-list a{color:var(--kana-deep)}

/* 共通フッター（LPと法務ページ） */
.site-footer{display:flex;flex-wrap:wrap;align-items:center;gap:12px 26px;padding:36px 0 56px;border-top:1px solid var(--chassis-deep);font-size:13px}
.site-footer>p{color:var(--sub)}
.site-footer>p+a{margin-left:auto}
.site-footer>a:not(.brand){min-height:44px;display:flex;align-items:center}
.copyright{font-size:12px;color:var(--sub)}
.legal-links{display:flex;flex-wrap:wrap;gap:6px 20px}
.legal-links a{text-decoration:underline;text-decoration-color:var(--cap-edge);text-underline-offset:4px;padding-block:8px}
.legal-links a[aria-current=page]{color:var(--kana-deep)}
.site-footer .legal-links{flex-basis:100%;border-top:1px solid var(--line-soft);padding-top:10px}
.eyebrow{font-size:12px;font-weight:700;color:var(--kana-deep);letter-spacing:.06em}

@media (max-width:900px){
  .site-header nav{display:none}
  .header-inner{justify-content:space-between}
  .hero{padding:44px 0 64px}
  .screen{padding:18px;border-width:7px}
  .screen-row{grid-template-columns:1fr;gap:6px}
  .keyrow{gap:5px;padding:10px}
  .cap{min-width:0;height:52px;padding:0 6px;font-size:11px}
  .cap-side,.cap-kana{display:none}
  .cap-key{min-width:96px}
  .band-head,.lanes,.aside,.early-access,.next-list,.faq,.sequence,.getting-started{grid-template-columns:1fr}
  .getting-started{gap:28px;padding-block:64px}
  .band,.long,.aside,.how,.pricing,.faq{padding-block:64px}
  .early-access{padding-block:48px}
  .band-head,.aside,.faq{gap:28px}
  .long-demo{grid-template-columns:1fr;gap:14px}
  .scene-frame{aspect-ratio:4/5}
  .scene-call{left:4%;top:4%;width:92%;height:46%}
  .scene-doc{right:4%;top:42%;width:58%;height:32%}
  .scene-muhenkan{left:5%;width:90%}
  .site-footer>p{display:none}
  .site-footer>p+a{margin-left:0}
}
@media (max-width:600px){
  .shell{width:calc(100% - 32px)}
  .header-inner{height:64px}
  .hero-title{font-size:clamp(26px,7vw,44px)}
  .title-romaji{font-size:13px;gap:6px}
  .hero-lead{font-size:16px}
  .romaji{font-size:17px}
  #japanese{font-size:19px}
  .plan{padding:24px 20px}
  .plan-comparison{grid-template-columns:1fr}.plan-tier{padding:20px}.plan-tier-recommended{padding:42px 19px 19px}
  .hero-actions .button{width:100%}
}
@media (max-width:360px){
  .header-inner{gap:10px}
  .brand{font-size:17px;gap:8px}
  .button-small{padding:0 10px;font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  /* 動きを減らす設定では自動再生しない。押したときだけ、文字が出るだけの形で見せる。 */
  .hero-head.is-playing .title-typed{animation:type .75s steps(var(--chars,37)) both!important}
  .hero-head.is-playing .hero-title{animation:title-fade .3s ease-out .8s both!important}
}

/* 長文のいいところ：理由を3つ、短く。 */
.long-points{list-style:none;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line-soft)}
.long-points h3{font-size:17px;font-weight:800}
.long-points p{font-size:14px;color:var(--ink-soft);margin-top:6px}
@media (max-width:900px){.long-points{grid-template-columns:1fr;gap:18px}}