/* 公開LP。色・書体は共有トークン、レイアウトはLP内に限定。 */
.lp { overflow: clip; background: var(--bg-card); }
.lp-wrap { width: min(1184px, calc(100% - 96px)); margin-inline: auto; }
.lp h1, .lp h2, .lp h3 { font-weight: 500; text-wrap: balance; }
.lp h2 { font-size: clamp(28px, 3.1vw, 42px); line-height: 1.6; letter-spacing: -.035em; }
.lp h3 { font-size: 22px; line-height: 1.65; }
.lp p { line-height: 1.95; }
.lp [id] { scroll-margin-top: 32px; }
.lp-skip { position: absolute; top: 8px; left: 16px; z-index: 10; padding: 12px; background: var(--bg-card); transform: translateY(-200%); }
.lp-skip:focus { transform: translateY(0); }
.lp-header { display: flex; align-items: center; gap: 40px; min-height: 112px; border-bottom: 1px solid var(--border-subtle); }
.lp-brand { display: inline-flex; align-items: center; gap: 12px; font-size: 21px; line-height: 1.1; font-weight: 500; letter-spacing: -.03em; }
.lp-brand-mark { width: 44px; height: 44px; }
.lp-nav { display: flex; gap: 32px; margin-left: auto; font-size: 14px; }
.lp-nav a, .lp-footer nav a { padding-block: 10px; }
.lp-nav a:hover, .lp-text-link:hover, .lp-footer a:hover { text-decoration: underline; text-underline-offset: 5px; }
.lp-theme-toggle { display: grid; place-items: center; flex: none; width: 46px; height: 46px; border: 1px solid var(--border-default); border-radius: var(--radius-pill); background: var(--bg-surface); color: var(--text-primary); transition: background var(--motion-fast); }
.lp-theme-toggle:hover { background: var(--accent-diary-bg); }
.lp-theme-toggle svg { width: 20px; height: 20px; }
.lp-theme-sun { display: none; }
:root.dark .lp-theme-sun { display: block; }
:root.dark .lp-theme-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not(.light) .lp-theme-sun { display: block; }
  :root:not(.light) .lp-theme-moon { display: none; }
}
.lp-button { display: inline-flex; justify-content: center; align-items: center; gap: 36px; min-height: 58px; padding: 16px 26px; border-radius: var(--radius-pill); background: var(--accent-cta); color: var(--on-accent); font-weight: 500; font-size: 16px; transition: transform var(--motion-fast); }
.lp-button:hover { transform: translateY(-2px); }
.lp-button-compact { min-height: 46px; padding: 10px 22px; gap: 24px; font-size: 14px; }
.lp-hero { display: grid; grid-template-columns: 1.3fr 1fr; gap: 48px; padding-block: 76px 88px; align-items: center; }
.lp-eyebrow { color: var(--accent-diary); font-size: 14px; font-weight: 500; margin-bottom: 20px; letter-spacing: .06em; }
.lp h1 { font-size: clamp(34px, 3.85vw, 56px); line-height: 1.5; letter-spacing: -.055em; margin-bottom: 28px; }
.lp h1 span { color: var(--accent-diary); }
.lp-lead { max-width: 500px; color: var(--text-secondary); font-size: 16px; }
.lp-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 28px; margin-top: 36px; }
.lp-text-link { display: inline-flex; align-items: center; gap: 14px; min-height: 44px; font-size: 14px; }
.lp-note { margin-top: 14px; font-size: 13px; color: var(--text-secondary); }
.lp-hero-visual { background: var(--bg-surface); border-radius: 160px 160px 24px 24px; padding: 38px 24px 28px; text-align: center; }
.lp-visual-label { font-size: 14px; margin-bottom: 24px; }
.lp-visual-footer { display: flex; justify-content: center; gap: 22px; margin-top: 22px; font-size: 14px; color: var(--text-secondary); }
.lp-screen { width: min(100%, 280px); margin-inline: auto; }
.lp-screen-frame { background: var(--bg-card); border: 1px solid var(--border-default); border-radius: 28px; overflow: hidden; padding: 8px; }
.lp-screen img { display: block; width: 100%; height: auto; border-radius: 20px; }
.lp-screen figcaption { font-size: 12px; line-height: 1.8; text-align: center; color: var(--text-secondary); margin-top: 16px; }
.lp-hero .lp-screen { max-width: 236px; }
.lp-languages { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: 56px; align-items: center; padding-block: 40px 88px; }
.lp-languages-copy { max-width: 430px; }
.lp-languages h2 { font-size: clamp(28px, 3.1vw, 42px); line-height: 1.55; }
.lp-languages h2 span { color: var(--accent-diary); }
.lp-languages-copy > p:not(.lp-eyebrow) { margin-top: 20px; color: var(--text-secondary); font-size: 16px; }
.lp-language-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; list-style: none; padding: 20px; border-radius: 28px; background: var(--bg-surface); }
.lp-language-list li { display: flex; align-items: center; gap: 14px; min-height: 72px; padding: 18px; border: 1px solid var(--border-subtle); border-radius: 18px; background: var(--bg-card); font-size: 17px; font-weight: 500; }
.lp-language-list img { width: 32px; height: 24px; border-radius: 6px; box-shadow: 0 2px 8px rgb(43 42 38 / .1); }
/* 機能紹介は見出しと大きな画面を交互に配置。 */
.lp-section { padding-block: 100px; }
.lp-overview { padding-block: 104px 48px; text-align: center; }
.lp-overview h2 { font-size: clamp(32px, 4vw, 56px); font-weight: 700; line-height: 1.5; }
.lp-overview h2 span, .lp-feature h2 span { color: var(--accent-diary); }
.lp-overview-lead { margin-top: 24px; color: var(--text-secondary); font-size: 18px; }
.lp-flow { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px 40px; list-style: none; margin-top: 40px; }
.lp-flow a { display: flex; gap: 14px; align-items: center; min-height: 48px; font-size: 16px; font-weight: 500; }
.lp-flow a:hover { text-decoration: underline; text-underline-offset: 5px; }
.lp-flow a span { color: var(--accent-diary); font-size: 14px; }
.lp-screenshot-note { text-align: center; font-size: 12px; color: var(--text-secondary); }
.lp-features { padding-bottom: 64px; }
.lp-feature { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: center; column-gap: 88px; padding-block: 88px; }
.lp-feature-reverse .lp-feature-copy { order: 2; }
.lp-feature-copy { max-width: 550px; }
.lp-feature h2 { font-size: clamp(36px, 3.7vw, 52px); font-weight: 700; line-height: 1.45; letter-spacing: -.045em; }
.lp-feature-copy > p:not(.lp-eyebrow) { color: var(--text-secondary); font-size: 19px; line-height: 1.95; margin-top: 30px; }
.lp-feature-copy .lp-text-link { margin-top: 28px; font-weight: 500; }
.lp-feature-visual { position: relative; min-width: 0; padding: 20px 0 48px; }
.lp-feature-visual::before { content: ""; position: absolute; inset: 12% -3% 6%; border-radius: 50%; background: radial-gradient(ellipse, var(--bg-surface), transparent 70%); }
.lp-feature-visual > .lp-screen { position: relative; width: 62%; max-width: 340px; margin-left: 27%; }
.lp-feature-visual .lp-screen-frame { border-radius: 32px; padding: 9px; }
.lp-feature-callout { position: absolute; z-index: 1; left: 0; bottom: 100px; max-width: 85%; padding: 24px 28px; border-radius: 22px; background: var(--bg-card); box-shadow: var(--shadow-floating); border: 1px solid var(--border-subtle); }
.lp-callout-label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 14px; }
.lp-language-pair { display: flex; gap: 16px; align-items: center; font-size: 20px; font-weight: 500; }
.lp-language-pair > span:not([aria-hidden]) { padding: 8px 14px; border-radius: var(--radius-pill); background: var(--accent-diary-bg); color: var(--accent-diary); }
.lp-visual-diary > .lp-screen { margin-left: 8%; }
.lp-audio-callout { left: auto; right: 0; bottom: 108px; width: 300px; }
.lp-audio-illustration { display: flex; align-items: center; gap: 16px; margin-block: 12px 16px; }
.lp-audio-symbol { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--accent-diary-bg); color: var(--accent-diary); font-size: 24px; }
.lp-waveform { flex: 1; height: 32px; background: repeating-linear-gradient(90deg, var(--accent-diary) 0 3px, transparent 3px 8px); clip-path: polygon(0 35%, 10% 15%, 20% 35%, 30% 0, 40% 25%, 50% 8%, 60% 30%, 70% 0, 80% 25%, 90% 15%, 100% 40%, 100% 60%, 90% 85%, 80% 75%, 70% 100%, 60% 70%, 50% 92%, 40% 75%, 30% 100%, 20% 65%, 10% 85%, 0 65%); }
.lp-callout-caption { display: block; font-size: 12px; color: var(--text-secondary); }
.lp-screen-pair { display: flex; align-items: flex-start; gap: 20px; position: relative; padding-block: 0 64px; }
.lp-screen-pair .lp-screen { display: flex; flex-direction: column; width: calc(50% - 10px); }
.lp-screen-pair figcaption { order: -1; margin: 0 0 14px; }
.lp-screen-pair .lp-screen + .lp-screen { margin-top: 80px; }
.lp-review-callout { left: 10%; bottom: 64px; }
.lp-review-callout strong { display: block; color: var(--accent-diary); font-size: 21px; font-weight: 500; margin-bottom: 12px; }
.lp-pricing { border-top: 1px solid var(--border-subtle); }
.lp-pricing > p:not(.lp-eyebrow) { max-width: 850px; margin-top: 20px; color: var(--text-secondary); }
.lp-pricing a { color: var(--accent-diary); text-decoration: underline; text-underline-offset: 4px; }
.lp-pricing-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 32px; }
.lp-pricing-grid article { padding: 28px; border: 1px solid var(--border-default); border-radius: 20px; background: var(--bg-surface); }
.lp-pricing-grid .lp-price { margin-top: 10px; font-size: 24px; font-weight: 600; color: var(--text-primary); }
.lp-faq { display: grid; grid-template-columns: 1fr 1.65fr; gap: 64px; }
.lp-faq-list details { border-bottom: 1px solid var(--border-default); }
.lp-faq-list details:first-child { border-top: 1px solid var(--border-default); }
.lp-faq-list summary { padding: 24px 8px; cursor: pointer; font-size: 16px; line-height: 1.8; }
.lp-faq-list p { padding: 0 8px 24px; color: var(--text-secondary); font-size: 15px; }
.lp-final { text-align: center; padding-block: 80px; background: var(--accent-cta-bg); }
.lp-final h2 { font-size: clamp(32px, 4vw, 48px); }
.lp-final p:not(.lp-eyebrow) { margin-top: 24px; color: var(--text-secondary); }
.lp-final .lp-button { margin-top: 32px; }
.lp-footer { display: flex; align-items: center; justify-content: space-between; gap: 28px; padding-block: 36px; }
.lp-footer nav { display: flex; gap: 24px; flex-wrap: wrap; color: var(--text-secondary); font-size: 12px; }

@media (max-width: 1000px) {
  .lp-wrap { width: calc(100% - 64px); }
  .lp-header { gap: 24px; }
  .lp-nav { gap: 20px; }
  .lp-hero { gap: 28px; grid-template-columns: 1.2fr 1fr; }
  .lp h1 { font-size: 36px; }
  .lp-hero-visual { padding-inline: 16px; }
  .lp-languages { gap: 36px; }
  .lp-language-list { padding: 16px; }
  .lp-language-list li { min-height: 64px; padding: 14px; }
  .lp-feature { column-gap: 40px; padding-block: 64px; }
  .lp-feature h2 { font-size: 36px; }
  .lp-feature-copy > p:not(.lp-eyebrow) { font-size: 17px; }
  .lp-feature-callout { padding: 20px; }
  .lp-language-pair { gap: 8px; font-size: 16px; }
  .lp-audio-callout { width: 250px; }
  .lp-screen-pair { gap: 12px; }
  .lp-screen-pair .lp-screen { width: calc(50% - 6px); }
  .lp-review-callout { left: 0; }
  .lp-faq { grid-template-columns: 1fr; gap: 32px; }
  .lp-footer { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 700px) {
  .lp-pricing-grid { grid-template-columns: 1fr; }
  .lp-wrap { width: calc(100% - 40px); }
  .lp-header { position: relative; flex-wrap: wrap; gap: 16px 8px; padding: 20px 60px 16px 0; }
  .lp-brand { font-size: 18px; gap: 8px; }
  .lp-brand-mark { width: 36px; height: 36px; }
  .lp-header > .lp-button { margin-left: auto; padding-inline: 12px; gap: 8px; font-size: 13px; }
  .lp-theme-toggle { position: absolute; top: 20px; right: 0; width: 44px; height: 44px; }
  .lp-nav { order: 3; width: 100%; justify-content: center; gap: 36px; }
  .lp-hero { grid-template-columns: 1fr; padding-block: 44px 56px; gap: 44px; }
  .lp h1 { font-size: clamp(30px, 8.5vw, 46px); }
  .lp-lead { font-size: 15px; }
  .lp-eyebrow { font-size: 13px; margin-bottom: 16px; }
  .lp-actions { gap: 12px 22px; margin-top: 28px; }
  .lp-button { gap: 24px; padding-inline: 24px; }
  .lp-hero-visual { max-width: 400px; width: 100%; margin-inline: auto; padding-top: 32px; }
  .lp-languages { grid-template-columns: 1fr; gap: 28px; padding-block: 16px 56px; }
  .lp-languages-copy { max-width: none; }
  .lp-languages h2 { font-size: 30px; }
  .lp-language-list { gap: 10px; padding: 12px; border-radius: 22px; }
  .lp-language-list li { gap: 10px; min-height: 58px; padding: 12px; border-radius: 14px; font-size: 15px; }
  .lp-language-list img { width: 28px; height: 21px; }
  .lp-overview { padding-block: 64px 24px; }
  .lp-overview h2 { font-size: 30px; }
  .lp-overview h2 span { display: block; }
  .lp-overview-lead { font-size: 15px; text-align: left; }
  .lp-flow { flex-direction: column; gap: 0; margin-top: 24px; text-align: left; }
  .lp-flow li + li { border-top: 1px solid var(--border-subtle); }
  .lp-flow a { min-height: 56px; }
  .lp-flow a span:last-child { margin-left: auto; }
  .lp-features { padding-bottom: 20px; }
  .lp-feature { grid-template-columns: minmax(0, 1fr); gap: 32px; padding-block: 44px; }
  .lp-feature-reverse .lp-feature-copy { order: initial; }
  .lp-feature-copy { max-width: none; }
  .lp-feature h2 { font-size: clamp(28px, 8.5vw, 38px); }
  .lp-feature-copy > p:not(.lp-eyebrow) { margin-top: 20px; font-size: 16px; }
  .lp-feature-visual { width: 100%; max-width: 460px; margin-inline: auto; padding-top: 8px; }
  .lp-feature-callout { padding: 18px 20px; border-radius: 18px; bottom: 76px; }
  .lp-callout-label { font-size: 12px; }
  .lp-language-pair { font-size: 16px; }
  .lp-language-pair > span:not([aria-hidden]) { padding: 6px 12px; }
  .lp-audio-callout { width: 240px; }
  .lp-screen-pair .lp-screen-frame { padding: 6px; border-radius: 22px; }
  .lp-screen-pair .lp-screen img { border-radius: 16px; }
  .lp-review-callout { left: 4%; bottom: 40px; }
  .lp-review-callout strong { font-size: 18px; }
  .lp-section { padding-block: 60px; }
  .lp-faq-list summary { font-size: 15px; }
  .lp-final { padding-block: 56px; }
  .lp-footer nav { flex-direction: column; gap: 6px; }
  .lp-footer nav a { min-height: 44px; }
}