:root {
  --navy: #0b1f35;
  --navy-2: #12304f;
  --navy-3: #1b4468;
  --teal: #2ec4b6;
  --teal-d: #137f75;
  --paper: #f5f7f9;
  --white: #ffffff;
  --ink: #0f1c2a;
  --ink-2: #4b5967;
  --line: #d9e0e7;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, Menlo, monospace;
  --wrap: 1180px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0a1828;
    --white: #0e2236;
    --ink: #e8eef4;
    --ink-2: #9fb0c0;
    --line: #1d3650;
    --teal-d: #4fd8cb;
  }
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font: 1.0625rem/1.65 var(--sans);
  color: var(--ink); background: var(--paper);
}
a { color: var(--teal-d); text-underline-offset: .2em; }
.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: clamp(1.25rem, 4vw, 2.5rem); }

/* ---------- Header ---------- */
.top {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--navy) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.top .wrap { display: flex; justify-content: space-between; align-items: center; gap: 1rem; min-height: 64px; }
.logo { display: flex; align-items: center; gap: .7rem; color: #fff; text-decoration: none; font-weight: 700; letter-spacing: .01em; }
.logo i {
  font-style: normal; display: grid; place-items: center;
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--navy-2); border: 1px solid rgba(255,255,255,.18);
  font-size: .8rem; letter-spacing: .02em;
}
.top nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.top nav a { color: #b9cbdc; text-decoration: none; font-size: .95rem; transition: color .2s; }
.top nav a:hover { color: #fff; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background:
    radial-gradient(900px 500px at 85% 20%, rgba(46,196,182,.14), transparent 60%),
    var(--navy);
  padding: clamp(3.5rem, 8vw, 7rem) 0 clamp(3.5rem, 8vw, 6.5rem);
}
.hero::before {
  content: ""; position: absolute; inset: -40px;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 70% 40%, #000 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 70% 40%, #000 0%, transparent 70%);
  animation: drift 28s linear infinite;
}
@keyframes drift { to { transform: translate(56px, 56px); } }
.hero .wrap { position: relative; display: grid; gap: 3rem; grid-template-columns: 1.15fr .85fr; align-items: center; }
.eyebrow { font: .85rem/1 var(--mono); color: var(--teal); letter-spacing: .08em; text-transform: uppercase; margin: 0 0 1.25rem; }
.hero h1 {
  font-size: clamp(2.5rem, 5.6vw, 4.5rem); line-height: 1.02; letter-spacing: -.03em;
  font-weight: 800; margin: 0 0 1.5rem; text-wrap: balance;
}
.hero h1 em { font-style: normal; color: var(--teal); }
.hero .lede { font-size: 1.25rem; color: #c3d3e2; max-width: 36rem; margin: 0 0 2.25rem; }
.cta { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-block; background: var(--teal); color: #05222b; font-weight: 700;
  padding: .9rem 1.5rem; border-radius: 10px; text-decoration: none;
  transition: transform .2s, box-shadow .2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(46,196,182,.28); }
.btn.ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.28); }
.btn.ghost:hover { box-shadow: none; border-color: #fff; }

/* Review panel */
.panel {
  background: rgba(8, 24, 42, .82); border: 1px solid rgba(255,255,255,.12);
  border-radius: 14px; padding: 0; overflow: hidden;
  box-shadow: 0 30px 60px rgba(0,0,0,.35);
  font-family: var(--mono); font-size: .92rem;
}
.panel-bar { display: flex; align-items: center; gap: .4rem; padding: .7rem 1rem; background: rgba(255,255,255,.05); border-bottom: 1px solid rgba(255,255,255,.08); }
.panel-bar span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.2); }
.panel-bar b { margin-left: .5rem; font-weight: 400; color: #8fa6bb; font-size: .8rem; }
.panel ul { list-style: none; margin: 0; padding: 1.25rem 1.25rem 1rem; position: relative; }
.panel li { display: grid; grid-template-columns: 1.6rem 1fr; gap: .25rem .5rem; padding: .7rem 0; border-bottom: 1px dashed rgba(255,255,255,.1); }
.panel li:last-child { border-bottom: 0; }
.panel .ck { color: var(--teal); }
.panel .nm { color: #fff; }
.panel .ds { grid-column: 2; color: #7f97ad; font-size: .8rem; }
.panel .out { padding: .9rem 1.25rem 1.2rem; color: var(--teal); border-top: 1px solid rgba(255,255,255,.08); }
.panel .out::after { content: "▍"; margin-left: .25rem; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.panel ul::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 60px; pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(46,196,182,.12), transparent);
  animation: scan 4.5s ease-in-out 2.4s infinite;
}
@keyframes scan { 0% { transform: translateY(-60px); } 100% { transform: translateY(260px); } }

.js .panel li { opacity: 0; transform: translateX(-10px); animation: rowin .5s ease forwards; }
.js .panel li:nth-child(1) { animation-delay: .5s; }
.js .panel li:nth-child(2) { animation-delay: .95s; }
.js .panel li:nth-child(3) { animation-delay: 1.4s; }
.js .panel li:nth-child(4) { animation-delay: 1.85s; }
.js .panel .out { opacity: 0; animation: rowin .5s ease 2.4s forwards; }
@keyframes rowin { to { opacity: 1; transform: none; } }

/* ---------- Sections ---------- */
section { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.kicker { font: .8rem/1 var(--mono); color: var(--teal-d); letter-spacing: .1em; text-transform: uppercase; margin: 0 0 1rem; }
h2 { font-size: clamp(1.9rem, 3.8vw, 2.9rem); line-height: 1.08; letter-spacing: -.025em; font-weight: 800; margin: 0 0 1.5rem; text-wrap: balance; max-width: 22ch; }
h3 { margin: 0 0 .4rem; font-size: 1.3rem; letter-spacing: -.01em; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.two p:not(.kicker) { margin: 0 0 1rem; color: var(--ink-2); font-size: 1.12rem; }
.two p strong { color: var(--ink); }

/* Areas */
.areas { border-top: 1px solid var(--ink); margin-top: 2rem; }
.area {
  display: grid; grid-template-columns: 5rem 1fr 1.4fr; gap: 1.5rem; align-items: baseline;
  padding: 1.6rem 0; border-bottom: 1px solid var(--line); position: relative;
  transition: padding .25s ease, background .25s ease;
}
.area::before { content: ""; position: absolute; left: 0; bottom: -1px; height: 2px; width: 0; background: var(--teal); transition: width .45s ease; }
.area:hover::before { width: 100%; }
.area:hover { padding-left: .75rem; }
.area .n { font: 1rem var(--mono); color: var(--teal-d); }
.area h3 { font-size: 1.55rem; margin: 0; }
.area p { margin: 0; color: var(--ink-2); }
.after { margin-top: 2rem; max-width: 46rem; color: var(--ink-2); font-size: 1.12rem; }

/* Process */
.band { background: var(--navy); color: #fff; }
.band .kicker { color: var(--teal); }
.band h2 { color: #fff; }
.steps { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin-top: 3rem; counter-reset: s; }
.steps::before {
  content: ""; position: absolute; left: 0; right: 0; top: 19px; height: 2px;
  background: linear-gradient(90deg, var(--teal) var(--p, 0%), rgba(255,255,255,.14) var(--p, 0%));
}
.step { position: relative; padding-top: 3.6rem; counter-increment: s; }
.step::before {
  content: counter(s); position: absolute; top: 0; left: 0;
  width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center;
  background: var(--navy); border: 2px solid var(--teal); color: var(--teal); font: 700 1rem var(--mono);
}
.step h3 { color: #fff; font-size: 1.4rem; }
.step p { margin: 0; color: #b9cbdc; }
.price-note { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.14); color: #b9cbdc; max-width: 46rem; }
.price-note strong { color: #fff; }

/* Partners */
.partner { background: var(--white); border-block: 1px solid var(--line); }
.partner .two p:last-child { margin-bottom: 0; }

/* About */
.facts { display: grid; gap: 1.25rem; }
.fact { border-left: 3px solid var(--teal); padding: .2rem 0 .2rem 1.1rem; }
.fact b { display: block; font-size: 1.75rem; letter-spacing: -.02em; line-height: 1.15; }
.fact span { color: var(--ink-2); font-size: .98rem; }

/* Contact */
.contact { background: var(--navy); color: #fff; text-align: left; }
.contact .kicker { color: var(--teal); }
.contact h2 { color: #fff; max-width: 20ch; }
.contact .big { display: inline-block; font-size: clamp(1.6rem, 4.4vw, 3rem); font-weight: 800; letter-spacing: -.02em; color: #fff; text-decoration: none; border-bottom: 3px solid var(--teal); padding-bottom: .15rem; transition: color .2s; word-break: break-all; }
.contact .big:hover { color: var(--teal); }
.contact .rows { margin-top: 2.25rem; display: flex; gap: 2rem; flex-wrap: wrap; color: #b9cbdc; }
.contact .rows a { color: #fff; }


footer { background: var(--navy); color: #8fa6bb; font-size: .9rem; padding: 1.5rem 0 2rem; border-top: 1px solid rgba(255,255,255,.08); }
footer .wrap { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
footer a { color: #cfe0ee; }

/* Reveal on scroll */
.js .rv { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.js .rv.in { opacity: 1; transform: none; }
.js .area.rv { transition: opacity .7s ease, transform .7s ease, padding .25s ease; }
.js .rv.d1 { transition-delay: .08s; } .js .rv.d2 { transition-delay: .16s; } .js .rv.d3 { transition-delay: .24s; }

/* ---------- Language switch ---------- */
.top .right { display: flex; align-items: center; gap: 1.5rem; }
.lang {
  display: flex; flex-shrink: 0; border: 1px solid rgba(255,255,255,.22); border-radius: 8px; overflow: hidden;
  font: 600 .78rem/1 var(--mono); letter-spacing: .04em;
}
.lang a { color: #b9cbdc; text-decoration: none; padding: .45rem .6rem; transition: background .2s, color .2s; }
.lang a + a { border-left: 1px solid rgba(255,255,255,.22); }
.lang a:hover { color: #fff; background: rgba(255,255,255,.08); }
.lang a[aria-current="page"] { background: var(--teal); color: #05222b; }
.lang a:focus-visible, .top nav a:focus-visible, .logo:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

/* ---------- Japanese ---------- */
html:lang(ja) {
  --sans: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Yu Gothic", Meiryo, "Noto Sans JP", "Noto Sans CJK JP", system-ui, sans-serif;
}
html:lang(ja) body { line-height: 1.9; font-size: 1rem; font-feature-settings: "palt" 0; }
html:lang(ja) h1, html:lang(ja) h2, html:lang(ja) h3 { letter-spacing: .02em; word-break: auto-phrase; font-weight: 700; }
html:lang(ja) .hero h1 { font-size: clamp(1.75rem, 3.4vw, 2.6rem); line-height: 1.5; margin-bottom: 1.75rem; }
html:lang(ja) .hero h1 em { color: var(--teal); }
html:lang(ja) .hero .lede { font-size: 1.05rem; line-height: 2; max-width: 34em; }
html:lang(ja) h2 { font-size: clamp(1.35rem, 2.4vw, 1.85rem); line-height: 1.55; max-width: 18em; }
html:lang(ja) h3 { font-size: 1.12rem; }
html:lang(ja) .area h3 { font-size: 1.2rem; }
html:lang(ja) .step h3 { font-size: 1.15rem; }
/* labels: no monospace or uppercase for Japanese text */
html:lang(ja) .kicker,
html:lang(ja) .eyebrow {
  font-family: var(--sans); text-transform: none; letter-spacing: .08em;
  font-size: .85rem; font-weight: 700;
}
html:lang(ja) .kicker::before,
html:lang(ja) .eyebrow::before {
  content: ""; display: inline-block; width: 1.4em; height: 2px; background: currentColor;
  vertical-align: middle; margin-right: .6em; transform: translateY(-2px);
}
html:lang(ja) .panel { font-family: var(--sans); }
html:lang(ja) .panel-bar b { letter-spacing: .06em; }
html:lang(ja) .two p:not(.kicker) { font-size: 1rem; line-height: 1.95; }
html:lang(ja) .after { font-size: 1rem; }
html:lang(ja) .btn { font-size: .95rem; letter-spacing: .04em; }
html:lang(ja) .contact .big { word-break: normal; }

/* worries list */
.worries { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.worries li {
  position: relative; padding: 1rem 0 1rem 2.1rem; border-bottom: 1px solid var(--line);
  color: var(--ink); line-height: 1.8;
}
.worries li::before {
  content: "✓"; position: absolute; left: .2rem; top: 1rem;
  color: var(--teal-d); font-weight: 700;
}

/* four-step flow */
.steps.steps-4 { grid-template-columns: repeat(4, 1fr); }

/* FAQ */
.faq { border-top: 1px solid var(--ink); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; position: relative;
  padding: 1.1rem 2.5rem 1.1rem 2.1rem; font-weight: 700; line-height: 1.7;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "Q"; position: absolute; left: 0; top: 1.1rem; color: var(--teal-d); font-family: var(--mono); }
.faq summary::after {
  content: ""; position: absolute; right: .5rem; top: 1.55rem; width: 10px; height: 10px;
  border-right: 2px solid var(--ink-2); border-bottom: 2px solid var(--ink-2);
  transform: rotate(45deg); transition: transform .25s ease;
}
.faq details[open] summary::after { transform: rotate(-135deg); top: 1.85rem; }
.faq details p { margin: 0 0 1.2rem; padding-left: 2.1rem; color: var(--ink-2); line-height: 1.95; }
.faq summary:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

/* company overview table */
.gaiyou { margin: 0; border-top: 1px solid var(--ink); }
.gaiyou > div {
  display: grid; grid-template-columns: 7.5rem 1fr; gap: 1rem;
  padding: .9rem 0; border-bottom: 1px solid var(--line); line-height: 1.8;
}
.gaiyou dt { color: var(--ink-2); font-size: .92rem; }
.gaiyou dd { margin: 0; }

.contact-lede { color: #b9cbdc; margin: -0.5rem 0 1.75rem; }

/* ---------- Mobile ---------- */
@media (max-width: 900px) {
  .hero .wrap, .two { grid-template-columns: 1fr; }
  .two { gap: .5rem; }
  .area { grid-template-columns: 3rem 1fr; gap: .35rem 1rem; }
  .area p { grid-column: 2; }
  .steps, .steps.steps-4 { grid-template-columns: 1fr; gap: 2rem; }
  .steps::before { left: 19px; right: auto; top: 0; bottom: 0; width: 2px; height: auto;
    background: linear-gradient(180deg, var(--teal) var(--p, 0%), rgba(255,255,255,.14) var(--p, 0%)); }
  .step { padding: 0 0 0 4rem; }
  .top nav { gap: 1rem; }
}
@media (max-width: 640px) {
  .top nav { display: none; }
}
.logo { white-space: nowrap; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .rv, .js .panel li, .js .panel .out { opacity: 1 !important; transform: none !important; }
  .panel ul::after { display: none; }
}
@media print {
  .top, .hero::before { display: none; }
  .js .rv, .js .panel li, .js .panel .out { opacity: 1 !important; transform: none !important; }
}