/* ==========================================================================
   N-WING — site styles
   No JavaScript, no external resources. Everything is served from 'self'.
   ========================================================================== */

:root {
  --ink: #1c2729;
  --ink-2: #4a585b;
  --ink-3: #6c7a7d;
  --char: #243031;
  --char-2: #384444;
  --slate: #688084;
  --slate-d: #4d6569;
  --mist: #9cbcc4;
  --mist-2: #c8dce0;
  --mist-3: #e8f0f2;
  --paper: #f5f8f8;
  --white: #ffffff;
  --line: #dbe4e6;
  --accent: #3b6c75;

  --radius: 20px;
  --radius-s: 12px;
  --shadow: 0 1px 2px rgba(28, 39, 41, .05), 0 18px 40px -18px rgba(28, 39, 41, .22);

  --font-sans: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic Medium", "YuGothic", "Meiryo", system-ui, sans-serif;
  --font-serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", serif;
  --font-latin: "Segoe UI", "Helvetica Neue", "Arial", sans-serif;

  --container: 1160px;
  --gutter: clamp(16px, 4vw, 40px);
  --section: clamp(80px, 11vw, 148px);

  color-scheme: light;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: .03em;
  font-feature-settings: "palt" 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--accent); text-underline-offset: .2em; }
a:hover { color: var(--char); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3, h4 { margin: 0; line-height: 1.45; letter-spacing: .04em; word-break: auto-phrase; text-wrap: balance; }
p { margin: 0; }
p, li, dd { word-break: auto-phrase; text-wrap: pretty; }
ul, ol { margin: 0; padding: 0; list-style: none; }
address { font-style: normal; }
small { font-size: inherit; }

.container { width: min(100% - var(--gutter) * 2, var(--container)); margin-inline: auto; }

.skip {
  position: absolute; left: 16px; top: -100px; z-index: 100;
  background: var(--char); color: var(--white); padding: 10px 18px; border-radius: 8px;
}
.skip:focus { top: 12px; color: var(--white); }

.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;
}

/* ---------- labels / section heads ---------- */
.label {
  display: inline-flex; align-items: center; gap: 14px;
  font-family: var(--font-latin); font-size: 12.5px; font-weight: 600;
  letter-spacing: .28em; text-transform: uppercase; color: var(--slate);
}
.label::before { content: ""; width: 32px; height: 1px; background: currentColor; }
.label--light { color: var(--mist); }

.sec-head { display: grid; gap: 18px; margin-bottom: clamp(40px, 6vw, 72px); }
.sec-head__title { font-size: clamp(1.75rem, 1.1rem + 2.4vw, 2.75rem); font-weight: 700; }
.sec-head__lead { color: var(--ink-2); max-width: 40em; }
.sec-head--center { justify-items: center; text-align: center; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  min-height: 56px; padding: 0 30px; border-radius: 999px;
  font-weight: 700; font-size: 15px; letter-spacing: .08em; text-decoration: none;
  transition: transform .25s ease, background-color .25s ease, color .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.btn::after {
  content: ""; width: 18px; height: 1px; background: currentColor;
  box-shadow: none; transition: width .25s ease;
}
.btn:hover::after { width: 28px; }
.btn--primary { background: var(--char); color: var(--white); box-shadow: 0 10px 24px -10px rgba(36, 48, 49, .6); }
.btn--primary:hover { background: var(--slate-d); color: var(--white); transform: translateY(-2px); }
.btn--ghost { border: 1px solid var(--mist-2); color: var(--char); background: rgba(255, 255, 255, .6); }
.btn--ghost:hover { border-color: var(--slate); color: var(--char); transform: translateY(-2px); }

.text-link {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 14.5px; color: var(--char); text-decoration: none; letter-spacing: .08em;
}
.text-link::after { content: "→"; font-family: var(--font-latin); transition: transform .25s ease; }
.text-link:hover { color: var(--accent); }
.text-link:hover::after { transform: translateX(4px); }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .82);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid rgba(219, 228, 230, .8);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: block; flex: none; }
.brand img { width: auto; height: 42px; }

.gnav ul { display: flex; align-items: center; gap: clamp(20px, 3vw, 40px); }
.gnav a {
  position: relative; display: block; padding: 8px 0;
  color: var(--ink); text-decoration: none; font-size: 14.5px; font-weight: 600; letter-spacing: .1em;
}
.gnav a:not(.gnav__cta)::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 2px; height: 1px;
  background: var(--slate); transform: scaleX(0); transform-origin: right; transition: transform .3s ease;
}
.gnav a:not(.gnav__cta):hover::after,
.gnav a[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }
.gnav__cta {
  padding: 10px 22px !important; border-radius: 999px;
  background: var(--char); color: var(--white) !important;
  transition: background-color .25s ease;
}
.gnav__cta:hover { background: var(--slate-d); }

/* mobile menu — <details>, no JS */
.mnav { display: none; position: relative; }
.mnav summary {
  list-style: none; cursor: pointer;
  display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%;
  border: 1px solid var(--line); background: var(--white);
}
.mnav summary::-webkit-details-marker { display: none; }
.mnav summary span, .mnav summary span::before, .mnav summary span::after {
  display: block; width: 18px; height: 1.5px; background: var(--char); border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.mnav summary span { position: relative; }
.mnav summary span::before, .mnav summary span::after { content: ""; position: absolute; left: 0; }
.mnav summary span::before { top: -6px; }
.mnav summary span::after { top: 6px; }
.mnav[open] summary span { background: transparent; }
.mnav[open] summary span::before { transform: translateY(6px) rotate(45deg); }
.mnav[open] summary span::after { transform: translateY(-6px) rotate(-45deg); }
.mnav nav {
  position: absolute; right: 0; top: calc(100% + 12px); width: min(78vw, 300px);
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-s);
  box-shadow: var(--shadow); padding: 10px;
}
.mnav a {
  display: block; padding: 14px 16px; border-radius: 8px;
  color: var(--ink); text-decoration: none; font-weight: 600; letter-spacing: .08em;
}
.mnav a:hover, .mnav a[aria-current="page"] { background: var(--paper); }
.mnav li + li { border-top: 1px solid var(--paper); }

@media (max-width: 860px) {
  .gnav { display: none; }
  .mnav { display: block; }
  .site-header__inner { height: 68px; }
  .brand img { height: 36px; }
}

/* ==========================================================================
   Hero (top page)
   ========================================================================== */
.hero {
  position: relative; overflow: hidden; isolation: isolate;
  padding: clamp(56px, 8vw, 112px) 0 clamp(96px, 12vw, 168px);
  background:
    radial-gradient(900px 520px at 88% 18%, var(--mist-3), transparent 62%),
    radial-gradient(700px 420px at 0% 100%, rgba(200, 220, 224, .45), transparent 70%),
    linear-gradient(180deg, #fbfcfc 0%, var(--paper) 100%);
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background-image: radial-gradient(circle, rgba(104, 128, 132, .22) 1px, transparent 1.4px);
  background-size: 24px 24px;
  -webkit-mask-image: linear-gradient(115deg, transparent 30%, #000 75%);
  mask-image: linear-gradient(115deg, transparent 30%, #000 75%);
}
.hero__inner { display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: clamp(24px, 4vw, 56px); }
.hero__copy { display: grid; gap: 28px; justify-items: start; }
.hero__title {
  font-size: clamp(2.2rem, 1.1rem + 4.2vw, 4.25rem);
  font-weight: 700; line-height: 1.32; letter-spacing: .03em; color: var(--ink);
}
.hero__title em {
  font-style: normal;
  background: linear-gradient(transparent 68%, rgba(156, 188, 196, .55) 68%);
  padding: 0 .04em;
}
.hero__lead { font-size: clamp(15px, .9rem + .2vw, 17px); color: var(--ink-2); max-width: 32em; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 6px; }

.hero__visual { position: relative; }
.wing { width: 100%; overflow: visible; }
.wing__ring { fill: none; stroke: var(--mist-2); stroke-width: 1; }
.wing__ring--dash { stroke-dasharray: 2 8; stroke: var(--mist); }
.wing__f { transform-box: fill-box; transform-origin: 30% 50%; }

.hero__badge {
  position: absolute; left: 4%; bottom: 6%;
  display: grid; gap: 2px; padding: 18px 22px;
  background: rgba(255, 255, 255, .86); border: 1px solid var(--line); border-radius: 16px;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
}
.hero__badge span { font-family: var(--font-latin); font-size: 11px; letter-spacing: .24em; text-transform: uppercase; color: var(--slate); }
.hero__badge strong { font-family: var(--font-latin); font-weight: 300; font-size: 34px; line-height: 1.1; letter-spacing: .04em; color: var(--char); }
.hero__badge small { font-family: var(--font-latin); font-size: 11px; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--ink-2); }

.hero__wind { position: absolute; left: 0; right: 0; bottom: 0; width: 100%; height: clamp(90px, 14vw, 190px); z-index: -1; }
.hero__wind path { fill: none; stroke-width: 1.2; stroke-linecap: round; }
.hero__wind .w1 { stroke: var(--mist); }
.hero__wind .w2 { stroke: var(--slate); opacity: .45; }
.hero__wind .w3 { stroke: var(--mist-2); }

.hero__scroll {
  position: absolute; right: var(--gutter); bottom: 28px;
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-latin); font-size: 11px; letter-spacing: .3em; color: var(--slate);
  writing-mode: vertical-rl;
}
.hero__scroll::after { content: ""; width: 1px; height: 56px; background: linear-gradient(var(--slate), transparent); }

@media (max-width: 960px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { max-width: 460px; width: 86%; margin: 12px auto 0; }
  .hero__scroll { display: none; }
}

/* ---------- marquee ---------- */
.marquee { overflow: hidden; border-block: 1px solid var(--line); background: var(--white); }
.marquee__track { display: flex; width: max-content; }
.marquee__group { display: flex; flex: none; }
.marquee__group span {
  display: inline-flex; align-items: center; gap: 36px; padding: 22px 18px 22px 0;
  font-family: var(--font-latin); font-weight: 300; font-size: clamp(18px, 1rem + .8vw, 26px);
  letter-spacing: .14em; color: var(--slate); white-space: nowrap;
}
.marquee__group span::after { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--mist); }

/* ==========================================================================
   Philosophy (dark)
   ========================================================================== */
.philosophy {
  position: relative; overflow: hidden; isolation: isolate;
  padding: var(--section) 0;
  background:
    radial-gradient(800px 500px at 100% 0%, rgba(104, 128, 132, .38), transparent 70%),
    var(--char);
  color: #e9f0f1;
}
.philosophy__bg { position: absolute; right: -6%; top: 50%; width: min(64vw, 760px); transform: translateY(-50%); opacity: .09; z-index: -1; }
.philosophy__bg path { fill: var(--mist); }
.philosophy__head { display: grid; gap: 26px; max-width: 760px; }
.philosophy__title {
  font-family: var(--font-serif); font-weight: 600;
  font-size: clamp(2.2rem, 1.2rem + 4vw, 4.25rem); line-height: 1.35; letter-spacing: .12em; color: var(--white);
}
.philosophy__lead { font-size: clamp(15px, .9rem + .25vw, 18px); color: #c9d6d8; line-height: 2.1; }
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 3vw, 40px); margin-top: clamp(56px, 7vw, 88px); }
.pillar { padding-top: 26px; border-top: 1px solid rgba(156, 188, 196, .35); display: grid; gap: 12px; align-content: start; }
.pillar__num { font-family: var(--font-latin); font-weight: 300; font-size: 14px; letter-spacing: .24em; color: var(--mist); }
.pillar__title { font-size: 1.25rem; color: var(--white); }
.pillar p { color: #b9c8cb; font-size: 15px; }
@media (max-width: 820px) { .pillars { grid-template-columns: 1fr; } }

/* ==========================================================================
   Services (cards on top page)
   ========================================================================== */
.services { padding: var(--section) 0; background: var(--white); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 2vw, 28px); }
.card {
  position: relative; display: flex; flex-direction: column; gap: 18px;
  padding: clamp(28px, 3vw, 40px);
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  color: var(--ink); text-decoration: none; overflow: hidden;
  transition: transform .35s cubic-bezier(.2, .7, .2, 1), box-shadow .35s ease, border-color .35s ease;
}
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--mist), var(--slate), var(--char-2));
  transform: scaleX(0); transform-origin: left; transition: transform .45s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--mist-2); color: var(--ink); }
.card:hover::before { transform: scaleX(1); }
.card__top { display: flex; align-items: center; justify-content: space-between; }
.card__num { font-family: var(--font-latin); font-weight: 200; font-size: 52px; line-height: 1; color: var(--mist-2); letter-spacing: .02em; }
.card__icon {
  display: grid; place-items: center; width: 60px; height: 60px; border-radius: 50%;
  background: var(--mist-3); color: var(--slate-d);
}
.card__icon svg { width: 28px; height: 28px; }
.card__en { font-family: var(--font-latin); font-size: 11.5px; font-weight: 600; letter-spacing: .22em; text-transform: uppercase; color: var(--slate); }
.card__title { font-size: 1.3rem; }
.card__catch { font-family: var(--font-serif); font-weight: 600; color: var(--char-2); font-size: 1.02rem; line-height: 1.7; }
.card__text { color: var(--ink-2); font-size: 15px; }
.card__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 6px; }
.card__tags li { font-size: 12.5px; padding: 4px 12px; border-radius: 999px; background: var(--paper); color: var(--ink-2); letter-spacing: .06em; }
.card__more { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 700; color: var(--char); letter-spacing: .08em; }
.card__more::after { content: "→"; font-family: var(--font-latin); transition: transform .25s ease; }
.card:hover .card__more::after { transform: translateX(5px); }
@media (max-width: 960px) { .cards { grid-template-columns: 1fr; } }

/* ==========================================================================
   Process
   ========================================================================== */
.process { padding: var(--section) 0; background: var(--paper); }
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; counter-reset: step; position: relative; }
.steps::before {
  content: ""; position: absolute; left: 10%; right: 10%; top: 32px; height: 1px;
  background: repeating-linear-gradient(90deg, var(--mist) 0 6px, transparent 6px 12px);
}
.step { position: relative; display: grid; align-content: start; justify-items: center; text-align: center; gap: 14px; padding: 0 12px; }
.step__num {
  position: relative; display: grid; place-items: center; width: 64px; height: 64px; border-radius: 50%;
  background: var(--white); border: 1px solid var(--mist-2);
  font-family: var(--font-latin); font-weight: 300; font-size: 20px; color: var(--slate-d);
  box-shadow: 0 0 0 8px var(--paper);
}
.step:last-child .step__num { background: var(--char); color: var(--white); border-color: var(--char); }
.step__title { font-size: 1.05rem; }
.step p { font-size: 14px; color: var(--ink-2); }
@media (max-width: 900px) {
  .steps { grid-template-columns: 1fr; gap: 22px; }
  .steps::before { left: 31px; right: auto; top: 32px; bottom: 32px; width: 1px; height: auto;
    background: repeating-linear-gradient(180deg, var(--mist) 0 6px, transparent 6px 12px); }
  .step { grid-template-columns: 64px 1fr; justify-items: start; text-align: left; column-gap: 20px; row-gap: 4px; padding: 0; }
  .step__num { grid-row: span 2; }
  .step__title { align-self: end; }
}

/* ==========================================================================
   Message
   ========================================================================== */
.message { padding: var(--section) 0; background: var(--white); }
.message__inner { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
.message__aside { position: sticky; top: 120px; display: grid; gap: 18px; }
.message__quote {
  font-family: var(--font-serif); font-weight: 600; font-size: clamp(1.5rem, 1rem + 1.8vw, 2.25rem);
  line-height: 1.6; color: var(--char);
}
.message__body { display: grid; gap: 1.6em; font-size: clamp(15px, .9rem + .2vw, 17px); color: var(--ink-2); line-height: 2.15; }
.message__sign { display: grid; gap: 4px; justify-items: end; margin-top: 12px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--ink); }
.message__sign span { font-size: 14px; color: var(--ink-3); letter-spacing: .1em; }
.message__sign strong { font-family: var(--font-serif); font-size: 1.5rem; font-weight: 600; letter-spacing: .3em; }
@media (max-width: 860px) {
  .message__inner { grid-template-columns: 1fr; }
  .message__aside { position: static; }
}

/* ==========================================================================
   Company summary / info table
   ========================================================================== */
.company-sum { padding: var(--section) 0; background: linear-gradient(180deg, var(--paper), var(--white)); }
.company-sum__inner { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
.company-sum__head { display: grid; gap: 18px; justify-items: start; }
.company-sum__head p { color: var(--ink-2); }
@media (max-width: 860px) { .company-sum__inner { grid-template-columns: 1fr; } }

.info { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(8px, 1.5vw, 16px) clamp(20px, 3vw, 40px); }
.info__row { display: grid; grid-template-columns: 9.5em 1fr; gap: 16px; padding: 22px 0; }
.info__row + .info__row { border-top: 1px solid var(--line); }
.info dt { font-weight: 700; color: var(--char); font-size: 14.5px; letter-spacing: .1em; }
.info dd { margin: 0; color: var(--ink-2); }
.info dd ol { display: grid; gap: 8px; counter-reset: biz; }
.info dd ol li { position: relative; padding-left: 2em; counter-increment: biz; }
.info dd ol li::before {
  content: counter(biz); position: absolute; left: 0; top: .3em;
  display: grid; place-items: center; width: 1.45em; height: 1.45em; border-radius: 50%;
  background: var(--mist-3); color: var(--slate-d); font-family: var(--font-latin); font-size: 12px; line-height: 1;
}
.info__sub { display: block; font-size: 13.5px; color: var(--ink-3); }
@media (max-width: 600px) {
  .info__row { grid-template-columns: 1fr; gap: 4px; padding: 18px 0; }
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact {
  position: relative; overflow: hidden; isolation: isolate;
  padding: clamp(72px, 9vw, 120px) 0;
  background: linear-gradient(120deg, var(--slate-d) 0%, var(--char) 70%);
  color: #e9f0f1;
}
.contact::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background-image: radial-gradient(circle, rgba(255, 255, 255, .12) 1px, transparent 1.4px);
  background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000);
  mask-image: linear-gradient(90deg, transparent, #000);
}
.contact__inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
.contact__head { display: grid; gap: 20px; }
.contact__title { font-size: clamp(1.75rem, 1.1rem + 2.4vw, 2.75rem); color: var(--white); }
.contact__head p { color: #c9d6d8; max-width: 34em; }
.contact__tel {
  display: grid; gap: 6px; padding: clamp(28px, 3vw, 40px);
  border: 1px solid rgba(200, 220, 224, .3); border-radius: var(--radius);
  background: rgba(255, 255, 255, .05);
}
.contact__tel-label { font-family: var(--font-latin); font-size: 12px; letter-spacing: .3em; color: var(--mist); }
.contact__tel-num {
  font-family: var(--font-latin); font-weight: 300; font-size: clamp(2rem, 1.3rem + 2.6vw, 3.1rem);
  letter-spacing: .06em; line-height: 1.3; color: var(--white); text-decoration: none;
  font-variant-numeric: tabular-nums;
}
.contact__tel-num:hover { color: var(--mist-2); }
.contact__hours { font-size: 14px; color: #b9c8cb; }
.contact__note { margin-top: 12px; padding-top: 14px; border-top: 1px solid rgba(200, 220, 224, .2); font-size: 13px; color: #a9bbbe; }
@media (max-width: 860px) { .contact__inner { grid-template-columns: 1fr; } }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: #182122; color: #b5c3c5; font-size: 14px; }
.site-footer__inner { display: grid; grid-template-columns: 1fr auto; gap: 40px; padding: clamp(56px, 7vw, 80px) 0 48px; }
.site-footer__brand { display: grid; gap: 22px; justify-items: start; }
.site-footer__brand img { height: 40px; width: auto; opacity: .95; }
.site-footer address { line-height: 2; }
.fnav ul { display: grid; grid-template-columns: repeat(2, auto); gap: 10px 48px; }
.fnav a { color: #dfe8e9; text-decoration: none; letter-spacing: .08em; }
.fnav a:hover { color: var(--mist); }
.site-footer__bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px;
  padding: 22px 0 28px; border-top: 1px solid rgba(181, 195, 197, .15);
  font-size: 12.5px; color: #8a9a9d; letter-spacing: .08em;
}
@media (max-width: 700px) { .site-footer__inner { grid-template-columns: 1fr; } }

/* ==========================================================================
   Sub pages
   ========================================================================== */
.page-hero {
  position: relative; overflow: hidden; isolation: isolate;
  padding: clamp(56px, 8vw, 104px) 0 clamp(48px, 6vw, 80px);
  background:
    radial-gradient(700px 380px at 90% 0%, var(--mist-3), transparent 65%),
    var(--paper);
  border-bottom: 1px solid var(--line);
}
.page-hero__inner { display: grid; gap: 14px; }
.page-hero__en {
  font-family: var(--font-latin); font-weight: 200; font-size: clamp(3rem, 1.6rem + 6vw, 6.5rem);
  line-height: 1; letter-spacing: .02em; color: var(--char);
}
.page-hero__title { font-size: clamp(1.05rem, .95rem + .4vw, 1.3rem); font-weight: 700; color: var(--slate-d); letter-spacing: .2em; }
.page-hero__mark { position: absolute; right: max(-60px, -4vw); bottom: -40px; width: clamp(220px, 32vw, 440px); opacity: .18; z-index: -1; }
.crumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; font-size: 13px; color: var(--ink-3); }
.crumbs li + li::before { content: "/"; margin-right: 8px; color: var(--mist); }
.crumbs a { color: var(--ink-2); text-decoration: none; }
.crumbs a:hover { color: var(--accent); }

.section { padding: var(--section) 0; }
.section--paper { background: var(--paper); }

/* in-page index */
.toc { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: clamp(40px, 5vw, 56px); }
.toc a {
  display: flex; align-items: center; gap: 16px; padding: 18px 22px;
  border: 1px solid var(--line); border-radius: var(--radius-s); background: var(--white);
  color: var(--ink); text-decoration: none; font-weight: 700; transition: border-color .25s ease, transform .25s ease;
}
.toc a:hover { border-color: var(--slate); transform: translateY(-2px); color: var(--ink); }
.toc span { font-family: var(--font-latin); font-weight: 300; font-size: 22px; color: var(--slate); }
@media (max-width: 860px) { .toc { grid-template-columns: 1fr; } }

/* service detail */
.svc { padding: var(--section) 0; }
.svc + .svc { border-top: 1px solid var(--line); }
.svc__head { display: grid; grid-template-columns: auto 1fr; gap: 12px clamp(20px, 3vw, 40px); align-items: end; margin-bottom: clamp(36px, 5vw, 56px); }
.svc__num { grid-row: span 2; font-family: var(--font-latin); font-weight: 200; font-size: clamp(4rem, 2.5rem + 5vw, 7.5rem); line-height: .85; color: var(--mist-2); }
.svc__en { font-family: var(--font-latin); font-size: 12px; font-weight: 600; letter-spacing: .24em; text-transform: uppercase; color: var(--slate); }
.svc__title { font-size: clamp(1.6rem, 1.1rem + 2vw, 2.4rem); }
.svc__body { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(32px, 5vw, 72px); align-items: start; }
.svc__body > :first-child { position: sticky; top: 120px; }
.svc__catch { font-family: var(--font-serif); font-weight: 600; font-size: clamp(1.3rem, 1rem + 1vw, 1.75rem); line-height: 1.6; color: var(--char); margin-bottom: 22px; }
.svc__text { display: grid; gap: 1.2em; color: var(--ink-2); }
.svc__panel { display: grid; gap: 18px; }
.panel { padding: 26px 28px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-s); }
.panel__title { display: flex; align-items: center; gap: 10px; font-size: 14px; letter-spacing: .14em; color: var(--slate-d); margin-bottom: 14px; }
.panel__title::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: var(--mist); transform: rotate(45deg); }
.checks { display: grid; gap: 8px; }
.checks li { position: relative; padding-left: 1.7em; }
.checks li::before {
  content: ""; position: absolute; left: .2em; top: .62em; width: .7em; height: .38em;
  border-left: 2px solid var(--slate); border-bottom: 2px solid var(--slate); transform: rotate(-45deg);
}
.flow { display: grid; gap: 0; counter-reset: flow; }
.flow li { position: relative; padding: 0 0 16px 2.6em; counter-increment: flow; }
.flow li:last-child { padding-bottom: 0; }
.flow li::before {
  content: counter(flow); position: absolute; left: 0; top: .2em;
  display: grid; place-items: center; width: 1.8em; height: 1.8em; border-radius: 50%;
  background: var(--mist-3); color: var(--slate-d); font-family: var(--font-latin); font-size: 13px; line-height: 1;
}
.flow li:not(:last-child)::after { content: ""; position: absolute; left: .9em; top: 2.2em; bottom: 4px; width: 1px; background: var(--mist-2); }
.price { display: grid; gap: 10px; }
.price__row { display: flex; justify-content: space-between; gap: 16px; align-items: baseline; padding-bottom: 10px; border-bottom: 1px dashed var(--line); }
.price__row dd { margin: 0; font-family: var(--font-latin); font-size: 1.15rem; color: var(--char); white-space: nowrap; }
.price__row dd small { margin-left: 2px; font-family: var(--font-sans); font-size: 12px; color: var(--ink-3); }
.price__note { font-size: 13px; color: var(--ink-3); margin-top: 6px; }
@media (max-width: 900px) {
  .svc__body { grid-template-columns: 1fr; }
  .svc__body > :first-child { position: static; }
}

/* company page */
.philo-box {
  display: grid; grid-template-columns: auto 1fr; gap: clamp(24px, 4vw, 64px); align-items: center;
  padding: clamp(32px, 5vw, 64px); border-radius: var(--radius);
  background: linear-gradient(120deg, var(--char), var(--slate-d)); color: #dfe8e9;
}
.philo-box__title { font-family: var(--font-serif); font-weight: 600; font-size: clamp(1.8rem, 1.2rem + 2.6vw, 3.2rem); letter-spacing: .14em; color: var(--white); line-height: 1.4; }
.philo-box p { color: #c9d6d8; line-height: 2.1; }
@media (max-width: 760px) { .philo-box { grid-template-columns: 1fr; } }

/* prose (privacy policy etc.) */
.prose { max-width: 820px; display: grid; gap: 1.1em; color: var(--ink-2); }
.prose h2 { margin-top: 1.6em; padding-bottom: 10px; border-bottom: 1px solid var(--line); font-size: 1.2rem; color: var(--char); }
.prose ul { display: grid; gap: 6px; padding-left: 1.2em; list-style: disc; }
.prose ul li::marker { color: var(--mist); }
.prose__date { text-align: right; color: var(--ink-3); font-size: 14px; margin-top: 2em; }

/* 404 */
.notfound { min-height: 64vh; display: grid; place-items: center; text-align: center; padding: 80px 0; }
.notfound__code { font-family: var(--font-latin); font-weight: 200; font-size: clamp(5rem, 3rem + 10vw, 10rem); line-height: 1; color: var(--mist-2); }
.notfound p { color: var(--ink-2); margin: 16px 0 32px; }

/* ==========================================================================
   Motion (CSS only, respects reduced motion)
   ========================================================================== */
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
@keyframes drift-a { 0%, 100% { transform: translate(0, 0) rotate(0); } 50% { transform: translate(-10px, 6px) rotate(-1.5deg); } }
@keyframes drift-b { 0%, 100% { transform: translate(0, 0) rotate(0); } 50% { transform: translate(8px, -5px) rotate(1.2deg); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes draw { from { stroke-dashoffset: 1600; } to { stroke-dashoffset: 0; } }
@keyframes marquee { to { transform: translateX(-50%); } }

@media (prefers-reduced-motion: no-preference) {
  .hero__copy > * { animation: rise .9s cubic-bezier(.2, .7, .2, 1) both; }
  .hero__copy > :nth-child(2) { animation-delay: .08s; }
  .hero__copy > :nth-child(3) { animation-delay: .18s; }
  .hero__copy > :nth-child(4) { animation-delay: .28s; }
  .hero__visual { animation: rise 1.2s .2s cubic-bezier(.2, .7, .2, 1) both; }
  .wing__f--1 { animation: drift-a 9s ease-in-out infinite; }
  .wing__f--2 { animation: drift-b 11s ease-in-out infinite; }
  .wing__f--3 { animation: drift-a 13s ease-in-out infinite reverse; }
  .wing__ring--dash { transform-box: fill-box; transform-origin: center; animation: spin 80s linear infinite; }
  .hero__wind path { stroke-dasharray: 1600; animation: draw 3.2s cubic-bezier(.4, 0, .2, 1) both; }
  .hero__wind .w2 { animation-delay: .3s; }
  .hero__wind .w3 { animation-delay: .6s; }
  .marquee__track { animation: marquee 48s linear infinite; }
  .page-hero__inner > * { animation: rise .8s cubic-bezier(.2, .7, .2, 1) both; }
  .page-hero__inner > :nth-child(2) { animation-delay: .08s; }
  .page-hero__inner > :nth-child(3) { animation-delay: .16s; }
}

/* print: keep it readable for bank/document checks */
@media print {
  .site-header, .mnav, .hero__visual, .hero__wind, .hero__scroll, .marquee, .philosophy__bg, .page-hero__mark { display: none !important; }
  body { font-size: 11pt; }
  .philosophy, .contact, .site-footer, .philo-box { background: none !important; color: #000 !important; }
  .philosophy *, .contact *, .site-footer *, .philo-box * { color: #000 !important; }
}