:root {
  --black: #08090a;
  --ink: #171817;
  --paper: #f4f1e8;
  --white: #fffefa;
  --yellow: #ffe500;
  --red: #e7473d;
  --gray: #686964;
  --line: #bdbbb2;
  --max: 1180px;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Inter, "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, input, textarea { font: inherit; }
::selection { color: var(--black); background: var(--yellow); }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; padding: 10px 14px; transform: translateY(-140%); background: var(--yellow); color: var(--black); font-weight: 900; }
.skip-link:focus { transform: none; }
.shell { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.eyebrow { margin: 0 0 12px; font-size: 12px; line-height: 1; font-weight: 950; letter-spacing: .17em; text-transform: uppercase; }
.section-title { max-width: 850px; margin: 0; font-size: clamp(38px, 6vw, 78px); line-height: .98; letter-spacing: -.07em; font-weight: 950; }
.section-copy { max-width: 700px; margin: 24px 0 0; font-size: clamp(17px, 2vw, 21px); line-height: 1.9; font-weight: 700; }
.yellow-rule { width: 68px; height: 8px; margin: 18px 0 0; background: var(--yellow); }

.site-header { position: sticky; z-index: 40; top: 0; color: var(--white); background: rgba(8, 9, 10, .94); border-bottom: 2px solid #343534; backdrop-filter: blur(12px); }
.nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand img { width: 42px; height: 42px; border-radius: 11px; }
.brand-text { display: grid; gap: 2px; }
.brand-name { font-size: 18px; font-weight: 950; letter-spacing: -.04em; }
.brand-note { color: #aeadad; font-size: 10px; font-weight: 800; letter-spacing: .12em; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { text-decoration: none; font-size: 13px; font-weight: 900; }
.nav-links a:hover { color: var(--yellow); }
.nav-cta { padding: 12px 16px; color: var(--black) !important; background: var(--yellow); }
.menu-button { display: none; border: 0; color: var(--white); background: transparent; font-size: 13px; font-weight: 900; }

.hero { position: relative; overflow: clip; color: var(--white); background: var(--black); border-bottom: 10px solid var(--yellow); }
.hero::before { content: ""; position: absolute; inset: 0; opacity: .17; background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px); background-size: 64px 64px; mask-image: linear-gradient(to right, black, transparent 70%); }
.hero-grid { position: relative; min-height: 760px; display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 40px; padding-block: 96px 74px; }
.hero-kicker { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 30px; color: var(--yellow); font-size: 13px; font-weight: 900; letter-spacing: .08em; }
.hero-kicker::before { content: ""; width: 36px; height: 3px; background: currentColor; }
.hero h1 { margin: 0; font-size: clamp(56px, 8.3vw, 116px); line-height: .91; letter-spacing: -.085em; font-weight: 950; }
.hero h1 span { display: block; color: var(--yellow); }
.hero-lead { max-width: 660px; margin: 28px 0 0; color: #d4d3ce; font-size: clamp(17px, 2vw, 22px); line-height: 1.8; font-weight: 750; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 34px; }
.button { min-height: 56px; display: inline-flex; align-items: center; justify-content: center; gap: 18px; padding: 0 24px; border: 2px solid var(--black); text-decoration: none; font-weight: 950; }
.button::after { content: "→"; font-size: 21px; }
.button-primary { background: var(--yellow); color: var(--black); }
.button-ghost { border-color: #646563; color: var(--white); }
.button:hover { transform: translate(-2px, -2px); box-shadow: 4px 4px 0 var(--red); }
.availability { font-size: 12px; color: #aeadad; font-weight: 800; }
.hero-visual { position: relative; min-height: 560px; }
.hero-card { position: absolute; inset: 20px 0 20px 8%; overflow: hidden; border: 3px solid var(--white); background: #282926; transform: rotate(2.5deg); box-shadow: 24px 24px 0 var(--yellow); }
.hero-card img { width: 100%; height: 100%; object-fit: cover; object-position: center 22%; filter: saturate(.78) contrast(1.06); }
.hero-stamp { position: absolute; right: -3%; bottom: 4%; width: 152px; aspect-ratio: 1; display: grid; place-items: center; padding: 20px; border-radius: 50%; color: var(--black); background: var(--yellow); border: 5px solid var(--black); text-align: center; font-size: 19px; line-height: 1.25; font-weight: 950; transform: rotate(-9deg); }
.hero-index { position: absolute; top: 0; left: 0; padding: 12px 16px; color: var(--black); background: var(--yellow); font: 950 28px/1 monospace; }

.ticker { overflow: hidden; color: var(--black); background: var(--yellow); border-bottom: 3px solid var(--black); }
.ticker-inner { width: max-content; display: flex; gap: 22px; padding: 13px 0; animation: ticker 28s linear infinite; font-size: 14px; font-weight: 950; letter-spacing: .05em; }
.ticker-inner span::after { content: "◆"; margin-left: 22px; }
@keyframes ticker { to { transform: translateX(-50%); } }

.intro { padding: 130px 0; }
.intro-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; align-items: start; }
.number { color: var(--red); font: 950 clamp(86px, 12vw, 170px)/.8 Georgia, serif; letter-spacing: -.08em; }
.intro-note { max-width: 320px; margin-top: 30px; padding-top: 16px; border-top: 3px solid var(--black); color: var(--gray); font-size: 13px; line-height: 1.8; font-weight: 800; }
.big-message { margin: 0; font-size: clamp(37px, 6.2vw, 82px); line-height: 1.11; letter-spacing: -.065em; font-weight: 950; }
.big-message mark { padding: 0 .08em; color: var(--black); background: var(--yellow); }

.features { padding: 120px 0; color: var(--white); background: var(--black); }
.feature-grid { margin-top: 64px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 2px solid #444541; border-left: 2px solid #444541; }
.feature { min-height: 390px; padding: 32px; border-right: 2px solid #444541; border-bottom: 2px solid #444541; }
.feature:nth-child(2) { background: var(--yellow); color: var(--black); }
.feature-no { color: var(--yellow); font: 950 14px/1 monospace; }
.feature:nth-child(2) .feature-no { color: var(--red); }
.feature-icon { margin: 58px 0 28px; font-size: 55px; line-height: 1; }
.feature h3 { margin: 0; font-size: 28px; line-height: 1.25; letter-spacing: -.05em; font-weight: 950; }
.feature p { margin: 18px 0 0; color: #b9b8b3; font-size: 15px; line-height: 1.85; font-weight: 700; }
.feature:nth-child(2) p { color: #3f403e; }

.characters { padding: 130px 0; }
.characters-head { display: flex; justify-content: space-between; gap: 40px; align-items: end; }
.characters-head .section-copy { max-width: 420px; }
.character-grid { margin-top: 60px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.character-card { position: relative; overflow: hidden; min-height: 500px; border: 3px solid var(--black); background: var(--white); transition: transform .2s ease, box-shadow .2s ease; }
.character-card:hover { transform: translateY(-7px); box-shadow: 9px 9px 0 var(--yellow); }
.character-card img { width: 100%; height: 330px; object-fit: cover; object-position: center 20%; filter: saturate(.82); }
.character-body { padding: 22px 22px 26px; }
.character-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.character-no { font: 950 12px/1 monospace; color: var(--gray); }
.character-type { padding: 6px 8px; color: var(--white); background: var(--black); font-size: 11px; font-weight: 900; }
.character-card h3 { margin: 16px 0 0; font-size: 36px; line-height: 1; letter-spacing: -.06em; }
.character-card p { margin: 13px 0 0; color: var(--gray); font-size: 14px; line-height: 1.7; font-weight: 700; }
.character-card.is-special { background: var(--yellow); transform: rotate(-1deg); }
.character-card.is-special:hover { transform: rotate(-1deg) translateY(-7px); box-shadow: 9px 9px 0 var(--red); }

.showcase { overflow: clip; padding: 130px 0; background: #dedbd1; }
.showcase-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.phone-stack { position: relative; min-height: 760px; }
.phone { position: absolute; width: min(62%, 330px); overflow: hidden; border: 9px solid var(--black); border-radius: 38px; background: var(--black); box-shadow: 14px 18px 0 rgba(0,0,0,.14); }
.phone img { width: 100%; }
.phone:first-child { top: 0; left: 3%; transform: rotate(-6deg); }
.phone:last-child { right: 3%; bottom: 0; transform: rotate(6deg); }
.step-list { margin: 48px 0 0; padding: 0; list-style: none; }
.step { display: grid; grid-template-columns: 62px 1fr; gap: 20px; padding: 24px 0; border-top: 2px solid #aaa89f; }
.step:last-child { border-bottom: 2px solid #aaa89f; }
.step-no { width: 48px; height: 48px; display: grid; place-items: center; color: var(--black); background: var(--yellow); font: 950 15px/1 monospace; }
.step h3 { margin: 0; font-size: 21px; font-weight: 950; }
.step p { margin: 7px 0 0; color: var(--gray); line-height: 1.7; font-size: 14px; font-weight: 700; }

.safety { padding: 110px 0; color: var(--white); background: var(--red); }
.safety-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 70px; align-items: center; }
.safety .section-title { max-width: 720px; }
.safety-panel { padding: 34px; border: 3px solid var(--black); color: var(--black); background: var(--paper); box-shadow: 12px 12px 0 var(--black); }
.safety-panel h3 { margin: 0; font-size: 22px; font-weight: 950; }
.safety-panel ul { margin: 22px 0 0; padding: 0; list-style: none; }
.safety-panel li { padding: 14px 0; border-top: 1px solid var(--line); font-weight: 850; }
.safety-panel li::before { content: "✓"; margin-right: 12px; color: var(--red); font-weight: 950; }

.closing { padding: 130px 0; text-align: center; }
.closing .section-title { margin-inline: auto; }
.closing .section-copy { margin-inline: auto; }
.closing-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; margin-top: 36px; }
.closing .button-ghost { border-color: var(--black); color: var(--black); }

.site-footer { padding: 52px 0 34px; color: var(--white); background: var(--black); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: start; }
.footer-title { margin: 0; font-size: 32px; font-weight: 950; letter-spacing: -.06em; }
.footer-copy { max-width: 460px; color: #969793; font-size: 12px; line-height: 1.7; }
.footer-links { display: flex; flex-wrap: wrap; gap: 22px; }
.footer-links a { color: #d5d4cf; font-size: 12px; font-weight: 850; }
.copyright { margin-top: 54px; padding-top: 20px; border-top: 1px solid #393a38; color: #777874; font: 700 11px/1.4 monospace; }

.page-hero { padding: 100px 0 84px; color: var(--white); background: var(--black); border-bottom: 10px solid var(--yellow); }
.page-hero h1 { max-width: 900px; margin: 0; font-size: clamp(56px, 10vw, 120px); line-height: .9; letter-spacing: -.085em; font-weight: 950; }
.page-hero h1 span { color: var(--yellow); }
.page-hero p { max-width: 660px; margin: 30px 0 0; color: #c2c1bc; font-size: 19px; line-height: 1.8; font-weight: 750; }
.support-layout { display: grid; grid-template-columns: 250px 1fr; gap: 76px; padding-block: 100px 130px; }
.side-nav { position: sticky; top: 110px; align-self: start; padding: 22px; border: 2px solid var(--black); background: var(--white); }
.side-nav strong { display: block; margin-bottom: 14px; font-size: 13px; letter-spacing: .1em; }
.side-nav a { display: block; padding: 12px 0; border-top: 1px solid var(--line); text-decoration: none; font-size: 13px; font-weight: 850; }
.side-nav a:hover { color: var(--red); }
.support-section { scroll-margin-top: 110px; padding: 0 0 76px; }
.support-section + .support-section { padding-top: 76px; border-top: 3px solid var(--black); }
.support-section h2 { margin: 0 0 30px; font-size: clamp(34px, 5vw, 58px); line-height: 1; letter-spacing: -.06em; font-weight: 950; }
.support-lead { color: var(--gray); font-size: 17px; line-height: 1.85; font-weight: 700; }
.quick-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.quick-card { min-height: 150px; padding: 24px; border: 2px solid var(--black); background: var(--white); text-decoration: none; }
.quick-card:hover { background: var(--yellow); }
.quick-card span { display: block; color: var(--red); font: 950 12px/1 monospace; }
.quick-card strong { display: block; margin-top: 34px; font-size: 18px; }
.faq-list { border-top: 2px solid var(--black); }
.faq { border-bottom: 2px solid var(--black); background: var(--white); }
.faq summary { position: relative; padding: 23px 60px 23px 22px; cursor: pointer; list-style: none; font-size: 17px; line-height: 1.5; font-weight: 900; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 22px; top: 18px; font-size: 28px; }
.faq[open] summary { background: var(--yellow); }
.faq[open] summary::after { content: "−"; }
.faq-body { padding: 2px 24px 25px; color: var(--gray); font-size: 15px; line-height: 1.9; font-weight: 700; }
.faq-body ol, .faq-body ul { padding-left: 1.4em; }
.notice { padding: 26px; border-left: 8px solid var(--yellow); background: var(--black); color: var(--white); }
.notice strong { color: var(--yellow); }
.notice p { margin: 9px 0 0; color: #c2c1bc; line-height: 1.8; font-weight: 700; }
.data-table { width: 100%; border-collapse: collapse; background: var(--white); }
.data-table th, .data-table td { padding: 17px; border: 1px solid var(--line); text-align: left; vertical-align: top; font-size: 14px; line-height: 1.7; }
.data-table th { width: 30%; background: #e5e2d9; font-weight: 900; }
.document { max-width: 860px; padding-block: 96px 130px; }
.document h1 { margin: 0; font-size: clamp(45px, 8vw, 80px); letter-spacing: -.07em; }
.document .updated { margin: 18px 0 56px; color: var(--gray); font: 700 12px/1.5 monospace; }
.document h2 { margin: 52px 0 16px; padding-top: 22px; border-top: 2px solid var(--black); font-size: 24px; }
.document p, .document li { color: #454641; font-size: 15px; line-height: 1.9; font-weight: 650; }
.document a { font-weight: 900; }
.error-page { min-height: 75vh; display: grid; place-items: center; padding: 60px 20px; text-align: center; }
.error-page strong { display: block; color: var(--red); font: 950 80px/1 monospace; }
.error-page h1 { margin: 20px 0 0; font-size: 46px; letter-spacing: -.06em; }

.js [data-reveal] { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s ease; }
.js [data-reveal].is-visible { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .hero-grid, .intro-grid, .showcase-grid, .safety-grid { grid-template-columns: 1fr; }
  .hero-grid { padding-top: 70px; }
  .hero-visual { min-height: 600px; }
  .intro-grid { gap: 50px; }
  .feature-grid, .character-grid { grid-template-columns: repeat(2, 1fr); }
  .feature:last-child { grid-column: span 2; min-height: 300px; }
  .characters-head { display: block; }
  .phone-stack { max-width: 600px; width: 100%; margin-inline: auto; }
  .support-layout { grid-template-columns: 1fr; gap: 46px; }
  .side-nav { position: static; display: grid; grid-template-columns: repeat(2, 1fr); }
  .side-nav strong { grid-column: span 2; }
}

@media (max-width: 680px) {
  .shell { width: min(calc(100% - 28px), var(--max)); }
  .nav { min-height: 66px; }
  .brand-note { display: none; }
  .menu-button { display: block; }
  .nav-links { position: absolute; top: 66px; right: 0; left: 0; display: none; padding: 18px 20px 24px; background: var(--black); border-bottom: 3px solid var(--yellow); }
  .nav-links[data-open] { display: grid; }
  .nav-links a { padding: 9px 0; }
  .nav-cta { text-align: center; }
  .hero-grid { min-height: auto; padding-block: 60px 66px; }
  .hero-visual { min-height: 480px; margin-top: 6px; }
  .hero-card { inset: 18px 5% 35px 0; box-shadow: 14px 14px 0 var(--yellow); }
  .hero-stamp { right: 0; width: 125px; font-size: 15px; }
  .hero-actions { align-items: stretch; }
  .button { width: 100%; }
  .intro, .features, .characters, .showcase, .safety, .closing { padding-block: 86px; }
  .feature-grid, .character-grid { grid-template-columns: 1fr; }
  .feature:last-child { grid-column: auto; }
  .characters-head .section-copy { margin-top: 20px; }
  .character-card { min-height: 0; }
  .phone-stack { min-height: 590px; }
  .phone { width: 65%; border-width: 6px; border-radius: 28px; }
  .safety-panel { box-shadow: 8px 8px 0 var(--black); }
  .footer-grid { grid-template-columns: 1fr; }
  .page-hero { padding-block: 72px 62px; }
  .support-layout { padding-block: 66px 90px; }
  .side-nav, .quick-grid { grid-template-columns: 1fr; }
  .side-nav strong { grid-column: auto; }
  .data-table, .data-table tbody, .data-table tr, .data-table th, .data-table td { display: block; width: 100%; }
  .data-table tr { border-bottom: 2px solid var(--black); }
  .data-table th, .data-table td { border-bottom: 0; }
}

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