/* Hallmark · macrostructure: Narrative Workflow · H6=16/7-overlay · F4=01/02/03/04-line
 * theme: custom sakura-ryokan · nav: N5 Floating pill · footer: Ft1 Mast-headed
 * states: default · hover · focus · active · disabled · loading · error · success
 * contrast: pass (40–41) · slop: pass (42–57) · pre-emit critique: P5 H5 E4 S5 R5 V5
 */
@import url("../../tokens.css");

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; scroll-padding-top: calc(var(--nav-height) + var(--space-lg)); }
body { margin: 0; min-width: 320px; overflow-x: clip; color: var(--color-ink); background: var(--color-paper); font-family: var(--font-body); font-size: var(--text-md); line-height: 1.7; text-rendering: optimizeLegibility; }
body::before { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none; background: radial-gradient(circle at 10% 18%, var(--color-paper-2), transparent 28%), radial-gradient(circle at 92% 58%, var(--color-paper-3), transparent 30%); }
img, video { display: block; max-width: 100%; }
img { height: auto; }
button, a { -webkit-tap-highlight-color: transparent; }
button, input { font: inherit; }
a { color: inherit; text-decoration-thickness: .08em; text-underline-offset: .2em; }
a:active { text-decoration-thickness: .14em; }
a:focus-visible, button:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; box-shadow: 0 0 0 5px var(--color-paper); }
button:disabled, .is-disabled { opacity: .55; cursor: not-allowed; pointer-events: none; }
[hidden] { display: none !important; }
h1, h2, h3, h4 { margin: 0; color: var(--color-ink-strong); font-family: var(--font-display); font-style: normal; line-height: 1.12; overflow-wrap: anywhere; min-width: 0; }
h1 { font-size: var(--text-display); letter-spacing: -.055em; }
h2 { font-size: var(--text-2xl); letter-spacing: -.035em; }
h3 { font-size: var(--text-xl); }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; }
li { list-style: none; }
.section-shell { width: min(100% - (var(--page-pad) * 2), var(--content-max)); margin-inline: auto; }
.section-pad { padding-block: var(--space-4xl); }
.space-top-sm { margin-block-start: var(--space-sm); }
.space-top-md { margin-block-start: var(--space-md); }
.space-top-lg { margin-block-start: var(--space-lg); }
.heading-xl { font-size: var(--text-xl); }
.skip-link { position: fixed; top: var(--space-md); left: var(--space-md); z-index: calc(var(--z-modal) + 1); padding: var(--space-sm) var(--space-md); color: var(--color-on-dark); background: var(--color-indigo-2); transform: translateY(-180%); transition: transform var(--dur-fast) var(--ease-out); }
.skip-link:focus { transform: translateY(0); }
.overline { display: inline-flex; align-items: center; gap: var(--space-xs); margin-block-end: var(--space-sm); color: var(--color-maple); font-size: var(--text-xs); font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.overline::before { content: ""; width: 2rem; height: .18rem; background: var(--color-maple); }
.section-head { display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-md); margin-block-end: var(--space-2xl); }
.section-head p { max-width: 62ch; color: var(--color-ink-soft); font-size: var(--text-lg); }
.section-head--compact { margin-block-end: var(--space-xl); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.promo-strip { min-height: 2.25rem; padding: .35rem var(--page-pad); color: var(--color-on-dark); background: var(--color-indigo-2); font-size: var(--text-sm); text-align: center; }
.promo-strip a { color: var(--color-action); font-weight: 800; white-space: nowrap; }
.site-nav { position: fixed; inset: calc(var(--space-md) + 2.25rem) auto auto 50%; z-index: var(--z-sticky-nav); transform: translateX(-50%); display: flex; align-items: center; gap: var(--space-lg); width: max-content; max-width: calc(100% - (var(--page-pad) * 2)); min-height: 3.5rem; padding: .45rem .55rem .45rem .75rem; background: var(--color-nav); border: 1px solid var(--color-rule); border-radius: var(--radius-pill); box-shadow: 0 .75rem 2rem -.8rem var(--color-shadow-deep); backdrop-filter: blur(14px) saturate(120%); }
.brand { display: inline-flex; align-items: center; gap: var(--space-sm); min-width: 0; text-decoration: none; white-space: nowrap; }
.brand img { width: 2.3rem; height: 2.3rem; object-fit: cover; border-radius: 50%; border: 1px solid var(--color-rule); }
.brand span { display: grid; line-height: 1.1; }
.brand b { color: var(--color-ink-strong); font-family: var(--font-display); }
.brand small { color: var(--color-ink-soft); font-size: .62rem; letter-spacing: .08em; }
.nav-links { display: flex; align-items: center; gap: var(--space-xs); }
.nav-links a { min-height: 2.5rem; padding: .55rem .7rem; border-radius: var(--radius-pill); text-decoration: none; white-space: nowrap; font-size: var(--text-sm); font-weight: 700; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--color-indigo-2); background: var(--color-sakura); }
.nav-toggle { display: none; width: 2.75rem; height: 2.75rem; border: 0; border-radius: 50%; color: var(--color-on-dark); background: var(--color-indigo); cursor: pointer; }
.nav-toggle svg { width: 20px; height: 20px; margin: auto; stroke: currentColor; fill: none; stroke-width: 2; }
.nav-toggle:active { background: var(--color-indigo-2); }
.nav-links a:active { background: var(--color-sky); }

.button { position: relative; display: inline-flex; align-items: center; justify-content: center; gap: var(--space-xs); min-height: 3rem; padding: .75rem 1.15rem; overflow: hidden; border: 1px solid transparent; border-radius: var(--radius-sm); font-weight: 850; line-height: 1; text-decoration: none; white-space: nowrap; cursor: pointer; transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), background-color var(--dur-fast) var(--ease-out); }
.button::after { content: ""; position: absolute; inset: -30% auto -30% 0; width: 30%; transform: skewX(-20deg) translateX(-300%); background: linear-gradient(90deg, transparent, var(--color-on-dark), transparent); opacity: 0; }
.button--primary { color: var(--color-action-ink); background: var(--color-action); border-color: var(--color-action-strong); box-shadow: 0 .65rem 1.5rem -.75rem var(--color-action-strong); }
.button--primary:hover { transform: translateY(-2px); }
.button--primary:hover::after { opacity: .55; animation: sheen 900ms var(--ease-out); }
.button--primary:active { transform: translateY(1px); box-shadow: none; }
.button--secondary { color: var(--color-indigo-2); background: var(--color-paper); border-color: var(--color-indigo); }
.button--secondary:hover { color: var(--color-on-dark); background: var(--color-indigo); }
.button--ghost { color: var(--color-on-dark); background: var(--color-overlay-strong); border-color: var(--color-rule-dark); }
.button[data-state="loading"] { color: var(--color-action-ink); cursor: progress; }
.button[data-state="loading"]::before { content: ""; width: 1rem; height: 1rem; border: 2px solid var(--color-action-ink); border-right-color: transparent; border-radius: 50%; animation: spin 700ms linear infinite; }
.button[data-state="success"] { color: var(--color-on-dark); background: var(--color-success); border-color: var(--color-success); }
.button[data-state="error"] { color: var(--color-on-dark); background: var(--color-error); border-color: var(--color-error); }

.hero { position: relative; min-height: min(52rem, 100svh); color: var(--color-on-dark); background: var(--color-indigo-2); overflow: hidden; }
.hero__media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 24%; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--color-overlay-strong) 0%, var(--color-overlay) 52%, var(--color-overlay) 100%); }
.hero__steam { position: absolute; inset: 0; z-index: 1; pointer-events: none; overflow: hidden; }
.steam-wisp { position: absolute; width: 10rem; height: 2rem; border-radius: 50%; background: var(--color-on-dark); filter: blur(1.6rem); opacity: .07; animation: drift 18s linear infinite; }
.steam-wisp:nth-child(1) { left: 10%; top: 32%; }
.steam-wisp:nth-child(2) { left: 58%; top: 48%; animation-delay: -7s; }
.hero__content { position: relative; z-index: 2; display: grid; align-content: end; min-height: min(52rem, 100svh); padding-block: clamp(8rem, 16vh, 11rem) calc(var(--sticky-height) + var(--space-5xl)); }
.hero__copy { max-width: 54rem; }
.hero__badges, .tag-row { display: flex; flex-wrap: wrap; gap: var(--space-xs); }
.hero__badges { margin-block-end: var(--space-lg); }
.tag { display: inline-flex; align-items: center; min-height: 2rem; padding: .3rem .65rem; color: var(--color-on-dark); background: var(--color-overlay-strong); border: 1px solid var(--color-rule-dark); border-radius: var(--radius-sm); font-size: var(--text-xs); font-weight: 750; white-space: nowrap; }
.hero h1 { max-width: 12ch; color: var(--color-on-dark); text-shadow: 0 .15rem 1rem var(--color-overlay-strong); }
.hero h1 span { display: block; margin-block-start: .25em; font-family: var(--font-body); font-size: .25em; font-weight: 700; letter-spacing: .08em; }
.hero__lede { max-width: 50ch; margin-block: var(--space-lg); color: var(--color-on-dark-soft); font-size: var(--text-lg); line-height: 1.65; }
.hero__facts { display: flex; flex-wrap: wrap; gap: var(--space-xs) var(--space-xl); margin-block-end: var(--space-xl); }
.hero__facts span { display: grid; font-size: var(--text-sm); }
.hero__facts b { color: var(--color-action); font-size: var(--text-lg); }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.hero__dialogue { position: absolute; z-index: 3; right: var(--page-pad); bottom: calc(var(--sticky-height) + var(--space-lg)); width: min(26rem, 36vw); padding: var(--space-lg); color: var(--color-ink-strong); background: var(--color-nav); border-left: .35rem solid var(--color-maple); box-shadow: 0 1rem 2rem var(--color-shadow-deep); backdrop-filter: blur(10px); }
.hero__dialogue strong { display: block; margin-block-end: var(--space-xs); color: var(--color-maple); }
.hero__dialogue p { font-family: var(--font-display); font-size: var(--text-lg); line-height: 1.45; }

.info-desk { position: relative; z-index: 5; margin-block-start: calc(var(--space-2xl) * -1); }
.info-desk__inner { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); background: var(--color-paper); border-top: .35rem solid var(--color-wood); box-shadow: 0 1rem 2.5rem var(--color-shadow); }
.info-item { min-width: 0; padding: var(--space-lg); border-right: 1px solid var(--color-rule); }
.info-item:last-child { border-right: 0; }
.info-item dt { color: var(--color-ink-soft); font-size: var(--text-xs); font-weight: 800; letter-spacing: .08em; }
.info-item dd { margin: var(--space-2xs) 0 0; color: var(--color-ink-strong); font-weight: 800; overflow-wrap: anywhere; }

.journey { position: relative; }
.journey::before { content: ""; position: absolute; left: calc((100% - min(100% - (var(--page-pad) * 2), var(--content-max))) / 2 + 2.1rem); top: var(--space-4xl); bottom: var(--space-4xl); width: .2rem; background: linear-gradient(var(--color-sakura), var(--color-sky), var(--color-wood)); }
.chapter { position: relative; display: grid; grid-template-columns: 5rem minmax(0, 1fr); gap: var(--space-xl); padding-block: var(--space-4xl); }
.chapter__number { position: sticky; top: calc(var(--nav-height) + var(--space-xl)); align-self: start; display: grid; place-items: center; width: 4.25rem; height: 4.25rem; color: var(--color-on-dark); background: var(--color-indigo); border: .35rem solid var(--color-paper); border-radius: 50%; box-shadow: 0 .5rem 1.2rem var(--color-shadow); font-weight: 900; font-variant-numeric: tabular-nums; }
.chapter__content { min-width: 0; }
.story-copy { max-width: 72ch; }
.story-copy p + p { margin-block-start: var(--space-lg); }
.story-quote { margin-block: var(--space-2xl); padding: var(--space-xl); color: var(--color-on-dark); background: var(--color-indigo); border-left: .4rem solid var(--color-action); font-family: var(--font-display); font-size: var(--text-xl); }

.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-md); }
.feature-card { display: grid; align-content: start; gap: var(--space-sm); min-height: 15rem; padding: var(--space-xl); background: var(--color-paper-2); border-top: .3rem solid var(--color-sakura-strong); transition: transform var(--dur-base) var(--ease-out); }
.feature-card:nth-child(2) { background: var(--color-paper-3); border-top-color: var(--color-sky-strong); }
.feature-card:nth-child(3) { border-top-color: var(--color-action); }
.feature-card:first-child { grid-column: 1 / -1; grid-template-columns: auto minmax(0, 1fr); column-gap: var(--space-lg); min-height: 12rem; }
.feature-card:first-child .feature-card__icon { grid-row: 1 / span 2; }
.feature-card:hover { transform: translateY(-.3rem); }
.feature-card__icon { display: grid; place-items: center; width: 2.75rem; height: 2.75rem; color: var(--color-on-dark); background: var(--color-indigo); }
.feature-card__icon svg { width: 24px; height: 24px; stroke: currentColor; fill: none; stroke-width: 2; }
.feature-card p { color: var(--color-ink-soft); }

.route-board { display: grid; grid-template-columns: minmax(0, .75fr) minmax(0, 1.25fr); min-height: 30rem; background: var(--color-indigo); color: var(--color-on-dark); }
.route-board__key { padding: var(--space-2xl); background: linear-gradient(145deg, var(--color-indigo-2), var(--color-indigo)); }
.route-board__key h3 { color: var(--color-on-dark); }
.route-board__key p { margin-block: var(--space-md) var(--space-xl); color: var(--color-on-dark-soft); }
.route-list { display: grid; gap: var(--space-xs); }
.route-list li { display: flex; align-items: center; gap: var(--space-sm); padding-block: var(--space-sm); border-bottom: 1px solid var(--color-rule-dark); }
.route-dot { width: .75rem; height: .75rem; border-radius: 50%; background: var(--color-sakura); }
.route-board__visual { position: relative; min-width: 0; overflow: hidden; }
.route-board__visual img { width: 100%; height: 100%; object-fit: cover; }
.route-board__visual figcaption { position: absolute; inset: auto var(--space-md) var(--space-md); padding: .55rem .75rem; color: var(--color-on-dark); background: var(--color-overlay-strong); font-size: var(--text-sm); }

.gallery-preview, .gallery-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-md); }
.gallery-item { position: relative; display: block; min-width: 0; padding: 0; overflow: hidden; border: 0; background: var(--color-indigo); cursor: zoom-in; aspect-ratio: 16 / 10; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-slow) var(--ease-out); }
.gallery-item span { position: absolute; inset: auto var(--space-sm) var(--space-sm); padding: .35rem .55rem; color: var(--color-on-dark); background: var(--color-overlay-strong); font-size: var(--text-xs); font-weight: 800; }
.gallery-item:hover img, .gallery-item:focus-visible img { transform: scale(1.025); }
.gallery-item:active img { transform: scale(1.01); }
.gallery-more { margin-block-start: var(--space-xl); }

.media-feature { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr); background: var(--color-paper-3); border: 1px solid var(--color-rule); }
.media-feature__visual { min-width: 0; aspect-ratio: 16 / 9; overflow: hidden; }
.media-feature__visual img { width: 100%; height: 100%; object-fit: cover; }
.media-feature__copy { display: grid; align-content: center; gap: var(--space-md); padding: var(--space-2xl); }
.media-feature__copy p { color: var(--color-ink-soft); }

.timeline { counter-reset: update; border-top: .35rem solid var(--color-indigo); }
.timeline details { border-bottom: 1px solid var(--color-rule); }
.timeline summary, .faq summary { position: relative; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: var(--space-md); min-height: 4.5rem; padding: var(--space-md); list-style: none; cursor: pointer; }
.timeline summary::-webkit-details-marker, .faq summary::-webkit-details-marker { display: none; }
.timeline summary::before { counter-increment: update; content: counter(update, decimal-leading-zero); color: var(--color-maple); font-weight: 900; }
.timeline summary::after, .faq summary::after { content: "+"; display: grid; place-items: center; width: 2rem; height: 2rem; color: var(--color-on-dark); background: var(--color-indigo); }
.timeline summary:hover, .faq summary:hover { background: var(--color-paper-2); }
.timeline summary:active, .faq summary:active { background: var(--color-paper-3); }
.timeline details[open] summary::after, .faq details[open] summary::after { content: "−"; }
.timeline__body, .faq__answer { padding: 0 var(--space-lg) var(--space-xl) calc(var(--space-lg) + 2.5rem); color: var(--color-ink-soft); }
.timeline__body ul { display: grid; gap: var(--space-xs); }
.timeline__body li { list-style: square; margin-left: 1.25rem; }

.review-summary { display: grid; grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr); gap: var(--space-xl); align-items: stretch; }
.score-panel { display: grid; align-content: center; gap: var(--space-xs); padding: var(--space-2xl); color: var(--color-on-dark); background: var(--color-indigo-2); }
.score-panel strong { color: var(--color-action); font-family: var(--font-display); font-size: var(--text-2xl); }
.score-panel small { color: var(--color-on-dark-soft); }
.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-md); }
.review-card { min-width: 0; padding: var(--space-xl); background: var(--color-paper); border: 1px solid var(--color-rule); border-bottom: .3rem solid var(--color-sky-strong); }
.review-card p { margin-block-end: var(--space-lg); }
.review-card span { color: var(--color-ink-soft); font-size: var(--text-sm); }

.faq { border-top: .35rem solid var(--color-maple); }
.faq details { border-bottom: 1px solid var(--color-rule); }
.faq summary { grid-template-columns: minmax(0, 1fr) auto; font-weight: 800; }
.faq__answer { padding-left: var(--space-md); max-width: 75ch; }

.download-panel { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); color: var(--color-on-dark); background: var(--color-indigo-2); }
.download-panel__copy { display: grid; align-content: center; gap: var(--space-lg); padding: var(--space-3xl); }
.download-panel__copy h2 { color: var(--color-on-dark); }
.download-panel__copy p { color: var(--color-on-dark-soft); }
.download-panel__ticket { margin: var(--space-xl); padding: var(--space-xl); color: var(--color-ink-strong); background: var(--color-paper); border-top: .4rem solid var(--color-action); box-shadow: 0 1rem 2rem var(--color-shadow-deep); }
.download-panel__ticket dl { display: grid; gap: var(--space-md); }
.download-panel__ticket div { display: flex; justify-content: space-between; gap: var(--space-md); padding-block-end: var(--space-sm); border-bottom: 1px dashed var(--color-rule); }
.download-panel__ticket dt { color: var(--color-ink-soft); }
.download-panel__ticket dd { margin: 0; font-weight: 850; text-align: right; }

.site-footer { padding-block: var(--space-3xl) calc(var(--sticky-height) + var(--space-2xl)); color: var(--color-on-dark); background: var(--color-indigo-2); }
.footer-mast { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: var(--space-2xl); align-items: start; }
.footer-brandmark { display: flex; align-items: center; gap: var(--space-md); }
.footer-brandmark img { width: 4.5rem; height: 4.5rem; object-fit: cover; border: 1px solid var(--color-rule-dark); }
.footer-brandmark strong { display: block; color: var(--color-on-dark); font-family: var(--font-display); font-size: var(--text-xl); }
.footer-brandmark span { color: var(--color-on-dark-soft); }
.footer-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-lg); }
.footer-nav h3 { margin-block-end: var(--space-sm); color: var(--color-action); font-family: var(--font-body); font-size: var(--text-sm); }
.footer-nav a { display: block; min-height: 2rem; color: var(--color-on-dark-soft); text-decoration: none; white-space: nowrap; }
.footer-nav a:hover { color: var(--color-action); }
.legal { display: flex; flex-wrap: wrap; gap: var(--space-sm) var(--space-xl); margin-block-start: var(--space-2xl); padding-block-start: var(--space-lg); border-top: 1px solid var(--color-rule-dark); color: var(--color-on-dark-soft); font-size: var(--text-xs); }

.sticky-download { position: fixed; z-index: var(--z-sticky); inset: auto 0 0; display: flex; align-items: center; justify-content: center; gap: var(--space-lg); min-height: var(--sticky-height); padding: var(--space-sm) var(--page-pad); color: var(--color-on-dark); background: var(--color-indigo-2); border-top: 1px solid var(--color-rule-dark); box-shadow: 0 -1rem 2rem var(--color-shadow); }
.sticky-download p { white-space: nowrap; }
.back-to-top { position: fixed; z-index: calc(var(--z-sticky) + 1); right: var(--space-md); bottom: calc(var(--sticky-height) + var(--space-md)); display: grid; place-items: center; width: 2.75rem; height: 2.75rem; color: var(--color-on-dark); background: var(--color-maple); border: 0; border-radius: 50%; box-shadow: 0 .5rem 1.5rem var(--color-shadow); cursor: pointer; opacity: 0; pointer-events: none; transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out); }
.back-to-top.is-visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { transform: translateY(-.2rem); }
.back-to-top:active { background: var(--color-error); }

.lightbox { width: min(94vw, 76rem); max-width: none; padding: 0; color: var(--color-on-dark); background: var(--color-indigo-2); border: 1px solid var(--color-rule-dark); box-shadow: 0 2rem 5rem var(--color-shadow-deep); }
.lightbox::backdrop { background: var(--color-overlay-strong); backdrop-filter: blur(.4rem); }
.lightbox__figure { margin: 0; }
.lightbox__image { width: 100%; max-height: 82vh; object-fit: contain; }
.lightbox__caption { padding: var(--space-sm) var(--space-md); color: var(--color-on-dark-soft); }
.icon-button { display: grid; place-items: center; min-width: 2.75rem; min-height: 2.75rem; border: 1px solid var(--color-rule-dark); color: var(--color-on-dark); background: var(--color-overlay-strong); cursor: pointer; }
.lightbox__close { position: absolute; top: var(--space-sm); right: var(--space-sm); }
.lightbox__prev, .lightbox__next { position: absolute; top: 50%; transform: translateY(-50%); }
.lightbox__prev { left: var(--space-sm); }
.lightbox__next { right: var(--space-sm); }
.icon-button:hover { background: var(--color-indigo); }
.icon-button:active { background: var(--color-indigo-2); }

.page-hero { padding-block: calc(var(--nav-height) + 7rem) var(--space-3xl); color: var(--color-on-dark); background: var(--color-indigo-2); }
.page-hero h1 { max-width: 14ch; color: var(--color-on-dark); font-size: clamp(2.6rem, 6vw, 5.4rem); }
.page-hero p { max-width: 62ch; margin-block-start: var(--space-lg); color: var(--color-on-dark-soft); font-size: var(--text-lg); }
.page-hero .tag-row { margin-block-start: var(--space-lg); }
.tabs { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-block-end: var(--space-xl); }
.tab { min-height: 2.75rem; padding: .55rem .9rem; border: 1px solid var(--color-indigo); color: var(--color-indigo); background: var(--color-paper); border-radius: var(--radius-sm); font-weight: 800; white-space: nowrap; cursor: pointer; }
.tab:hover, .tab[aria-selected="true"] { color: var(--color-on-dark); background: var(--color-indigo); }
.tab:active { background: var(--color-indigo-2); }
.gallery-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.platform-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-lg); }
.platform-card { position: relative; display: grid; gap: var(--space-md); padding: var(--space-2xl); background: var(--color-paper); border: 1px solid var(--color-rule); border-top: .4rem solid var(--color-sky-strong); }
.platform-card--recommended { border-top-color: var(--color-action); }
.recommend-badge { position: absolute; top: var(--space-md); right: var(--space-md); padding: .25rem .5rem; color: var(--color-action-ink); background: var(--color-action); font-size: var(--text-xs); font-weight: 900; }
.platform-icons { display: flex; gap: var(--space-sm); color: var(--color-indigo); }
.platform-icons svg { width: 24px; height: 24px; fill: currentColor; }
.install-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-lg); counter-reset: install; }
.install-step { position: relative; padding: var(--space-xl); background: var(--color-paper-3); border-top: .35rem solid var(--color-sky-strong); }
.install-step::before { counter-increment: install; content: counter(install, decimal-leading-zero); display: block; color: var(--color-maple); font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 900; }
.spec-table { width: 100%; border-collapse: collapse; background: var(--color-paper); }
.spec-table th, .spec-table td { padding: var(--space-md); border-bottom: 1px solid var(--color-rule); text-align: left; vertical-align: top; }
.spec-table th { width: 28%; color: var(--color-indigo); }
.notice { padding: var(--space-lg); color: var(--color-ink-strong); background: var(--color-paper-2); border-left: .35rem solid var(--color-maple); }

.guide-layout { display: grid; grid-template-columns: 16rem minmax(0, 1fr); gap: var(--space-2xl); align-items: start; }
.toc { position: sticky; top: calc(var(--nav-height) + var(--space-xl)); padding: var(--space-lg); background: var(--color-paper-3); border-top: .35rem solid var(--color-sky-strong); }
.toc strong { display: block; margin-block-end: var(--space-sm); color: var(--color-ink-strong); }
.toc a { display: block; padding-block: .45rem; color: var(--color-ink-soft); text-decoration: none; }
.toc a:hover { color: var(--color-maple); }
.guide-content { min-width: 0; }
.guide-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-md); margin-block-end: var(--space-3xl); }
.guide-card { padding: var(--space-xl); background: var(--color-paper); border: 1px solid var(--color-rule); border-bottom: .35rem solid var(--color-sakura-strong); }
.guide-card p { margin-block: var(--space-sm) var(--space-lg); color: var(--color-ink-soft); }
.guide-card a { color: var(--color-maple); font-weight: 850; white-space: nowrap; }
.guide-article { padding-block: var(--space-2xl); border-top: .35rem solid var(--color-indigo); }
.guide-article h2 { margin-block-end: var(--space-lg); }
.guide-article h3 { margin-block: var(--space-xl) var(--space-sm); }
.guide-article p + p { margin-block-start: var(--space-md); }
.guide-article ul, .guide-article ol { display: grid; gap: var(--space-sm); margin-block: var(--space-lg); padding-left: 1.4rem; }
.guide-article li { list-style: disc; }
.guide-article ol li { list-style: decimal; }
.guide-table { width: 100%; border-collapse: collapse; margin-block: var(--space-lg); }
.guide-table th, .guide-table td { padding: var(--space-sm) var(--space-md); border: 1px solid var(--color-rule); text-align: left; }
.article-meta { display: flex; flex-wrap: wrap; gap: var(--space-xs) var(--space-xl); margin-block: var(--space-lg); color: var(--color-ink-soft); font-size: var(--text-sm); }

.reveal { opacity: 0; transform: translateY(1rem); transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: none; }

@keyframes sheen { from { transform: skewX(-20deg) translateX(-300%); } to { transform: skewX(-20deg) translateX(700%); } }
@keyframes spin { to { transform: rotate(1turn); } }
@keyframes drift { from { transform: translateX(-15vw); } to { transform: translateX(115vw); } }

@media (max-width: 64rem) {
  .nav-links { display: none; position: absolute; top: calc(100% + var(--space-sm)); right: 0; width: min(18rem, calc(100vw - (var(--page-pad) * 2))); padding: var(--space-sm); background: var(--color-paper); border: 1px solid var(--color-rule); box-shadow: 0 1rem 2rem var(--color-shadow); border-radius: var(--radius-md); }
  .nav-links.is-open { display: grid; }
  .nav-links a { display: block; }
  .nav-toggle { display: grid; }
  .site-nav > .button { display: none; }
  .hero__dialogue { display: none; }
  .info-desk__inner { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .info-item:nth-child(3) { border-right: 0; }
  .info-item:nth-child(-n+3) { border-bottom: 1px solid var(--color-rule); }
  .feature-grid, .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .review-summary, .download-panel, .media-feature, .footer-mast { grid-template-columns: minmax(0, 1fr); }
  .gallery-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .guide-layout { grid-template-columns: minmax(0, 1fr); }
  .toc { position: static; }
}

@media (max-width: 48rem) {
  .promo-strip { padding-inline: var(--space-sm); }
  .site-nav { top: calc(var(--space-sm) + 2.25rem); width: calc(100% - (var(--page-pad) * 2)); max-width: 34rem; justify-content: space-between; }
  .brand small { display: none; }
  .hero { min-height: 46rem; }
  .hero__content { min-height: 46rem; padding-block-start: 8.5rem; padding-block-end: calc(var(--sticky-height) + var(--space-xl)); }
  .hero h1 { font-size: clamp(2.6rem, 13vw, 4.5rem); line-height: 1.04; }
  .hero__facts { gap: var(--space-sm); }
  .hero__facts span { min-width: calc(50% - var(--space-sm)); }
  .info-desk { margin-block-start: calc(var(--space-xl) * -1); }
  .info-desk__inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .info-item:nth-child(2n) { border-right: 0; }
  .info-item:nth-child(3) { border-right: 1px solid var(--color-rule); }
  .info-item:nth-child(-n+4) { border-bottom: 1px solid var(--color-rule); }
  .journey::before { display: none; }
  .chapter { grid-template-columns: minmax(0, 1fr); gap: var(--space-lg); padding-block: var(--space-3xl); }
  .chapter__number { position: static; width: 3.4rem; height: 3.4rem; border-width: .25rem; }
  .section-head { display: flex; flex-direction: column; }
  .feature-grid, .gallery-preview, .gallery-grid, .review-grid, .route-board, .platform-grid, .install-steps, .guide-cards { grid-template-columns: minmax(0, 1fr); }
  .gallery-preview .gallery-item:nth-child(n+4) { display: none; }
  .route-board__visual { min-height: 20rem; }
  .download-panel__copy { padding: var(--space-2xl) var(--space-lg); }
  .download-panel__ticket { margin: var(--space-md); }
  .footer-nav { grid-template-columns: minmax(0, 1fr); }
  .sticky-download { justify-content: space-between; gap: var(--space-sm); }
  .sticky-download p { max-width: 45vw; overflow: hidden; text-overflow: ellipsis; font-size: var(--text-sm); }
  .sticky-download .button { min-height: 2.75rem; padding-inline: .9rem; }
  .lightbox__prev, .lightbox__next { top: auto; bottom: var(--space-md); transform: none; }
  .page-hero { padding-block-start: 9rem; }
  .toc { overflow-x: auto; white-space: nowrap; }
  .toc a { display: inline-block; margin-right: var(--space-md); }
  .spec-table, .spec-table tbody, .spec-table tr, .spec-table th, .spec-table td { display: block; width: 100%; }
  .spec-table tr { padding-block: var(--space-sm); border-bottom: 1px solid var(--color-rule); }
  .spec-table th, .spec-table td { padding: var(--space-2xs) 0; border: 0; }
}

@media (max-width: 25.875rem) {
  .hero__actions, .page-actions { display: grid; }
  .hero__actions .button, .page-actions .button { width: 100%; }
  .info-desk__inner { grid-template-columns: minmax(0, 1fr); }
  .info-item, .info-item:nth-child(3) { border-right: 0; border-bottom: 1px solid var(--color-rule); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}