/* =============================================================
   株式会社ワシノミヤ電子東京 — Corporate Site
   Design: "Instrument precision" — Navy × Copper, mono technical labels
   ============================================================= */

/* ---------- Tokens ---------- */
:root {
  --paper:      #F3F5F7;
  --paper-2:    #FFFFFF;
  --paper-3:    #E9EDF1;
  --ink:        #16202B;
  --ink-soft:   #45566A;
  --navy:       #0F2C4A;
  --navy-2:     #143A5F;
  --navy-3:     #0A2036;
  --copper:     #B26A2B;
  --copper-2:   #97551D;
  --copper-tint:#F3E7D8;
  --steel:      #64768A;
  --line:       #D5DCE3;
  --line-2:     #C3CCD6;

  --maxw: 1200px;
  --gut: clamp(20px, 5vw, 64px);

  --f-head: "Zen Kaku Gothic New", "Noto Sans JP", sans-serif;
  --f-body: "Noto Sans JP", sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, monospace;

  --shadow: 0 1px 2px rgba(15, 44, 74, .04), 0 8px 28px rgba(15, 44, 74, .06);
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--f-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; }
button { font: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--f-head); font-weight: 700; line-height: 1.35; letter-spacing: .01em; }

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gut); }
.section { padding-block: clamp(64px, 9vw, 120px); }
.section--tight { padding-block: clamp(48px, 6vw, 80px); }
.section--navy { background: var(--navy); color: #E7EDF3; }
.section--paper2 { background: var(--paper-2); }

/* ---------- Eyebrow / labels (signature) ---------- */
.eyebrow {
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--copper);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--copper);
}
.section--navy .eyebrow { color: #E0A662; }
.section--navy .eyebrow::before { background: #E0A662; }

.mono { font-family: var(--f-mono); }

/* ---------- Headings ---------- */
.h-lead {
  font-size: clamp(1.7rem, 3.6vw, 2.7rem);
  letter-spacing: .02em;
}
.h-lead .accent { color: var(--copper); }
.section--navy .h-lead .accent { color: #E0A662; }
.section-head { max-width: 720px; margin-bottom: clamp(36px, 5vw, 60px); }
.section-head .eyebrow { margin-bottom: 18px; }
.section-head p { color: var(--ink-soft); margin-top: 18px; }
.section--navy .section-head p { color: #AEBECD; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 15px 26px;
  font-family: var(--f-head);
  font-weight: 500;
  font-size: .95rem;
  letter-spacing: .04em;
  border: 1px solid transparent;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .2s var(--ease);
}
.btn__arrow { font-family: var(--f-mono); transition: transform .25s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }
.btn--primary { background: var(--copper); color: #fff; }
.btn--primary:hover { background: var(--copper-2); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line-2); }
.btn--ghost:hover { border-color: var(--navy); background: var(--navy); color: #fff; }
.btn--onnavy { background: #fff; color: var(--navy); }
.btn--onnavy:hover { background: #E0A662; color: var(--navy-3); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(243, 245, 247, .88);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 74px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand__mark { width: 34px; height: 34px; flex: none; }
.brand__name { line-height: 1.15; }
.brand__jp { font-family: var(--f-head); font-weight: 700; font-size: 1.02rem; letter-spacing: .02em; color: var(--navy); }
.brand__en { font-family: var(--f-mono); font-size: 9.5px; letter-spacing: .22em; color: var(--steel); text-transform: uppercase; }

.nav__links { display: flex; align-items: center; gap: 4px; }
.nav__links a {
  padding: 10px 14px;
  font-family: var(--f-head);
  font-weight: 500;
  font-size: .92rem;
  color: var(--ink);
  position: relative;
  transition: color .2s var(--ease);
}
.nav__links a .lbl-en { display: block; font-family: var(--f-mono); font-size: 8.5px; letter-spacing: .16em; color: var(--steel); text-transform: uppercase; margin-top: 1px; }
.nav__links a:hover { color: var(--copper); }
.nav__links a[aria-current="page"] { color: var(--copper); }
.nav__links a[aria-current="page"]::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 2px; background: var(--copper);
}
.nav__cta { margin-left: 10px; }
.nav__cta .btn { padding: 11px 20px; }

.nav__toggle {
  display: none; width: 44px; height: 44px; border: 1px solid var(--line-2); background: var(--paper-2);
  position: relative; border-radius: 3px;
}
.nav__toggle span { position: absolute; left: 11px; right: 11px; height: 2px; background: var(--navy); transition: transform .3s var(--ease), opacity .2s var(--ease); }
.nav__toggle span:nth-child(1) { top: 15px; }
.nav__toggle span:nth-child(2) { top: 21px; }
.nav__toggle span:nth-child(3) { top: 27px; }
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; background: var(--paper); }
.hero__inner {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(24px, 4vw, 56px);
  align-items: center;
  padding-block: clamp(56px, 8vw, 104px);
}
.hero__kicker {
  font-family: var(--f-mono); font-size: 12px; letter-spacing: .16em; color: var(--steel);
  display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 26px;
}
.hero__kicker b { color: var(--copper); font-weight: 500; }
.hero h1 {
  font-size: clamp(2rem, 5.4vw, 3.7rem);
  line-height: 1.28; letter-spacing: .015em; color: var(--navy);
}
.hero h1 .cu { color: var(--copper); }
.hero__lead { margin-top: 26px; max-width: 34em; color: var(--ink-soft); font-size: 1.02rem; }
.hero__cta { margin-top: 38px; display: flex; gap: 14px; flex-wrap: wrap; }

/* Hero instrument readout strip */
.readout {
  margin-top: 48px;
  border: 1px solid var(--line); background: var(--paper-2);
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-radius: 4px; overflow: hidden;
}
.readout__cell { padding: 16px 20px; border-left: 1px solid var(--line); }
.readout__cell:first-child { border-left: 0; }
.readout__k { font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .12em; color: var(--steel); text-transform: uppercase; }
.readout__v { font-family: var(--f-head); font-weight: 700; font-size: 1.15rem; color: var(--navy); margin-top: 4px; }
.readout__v small { font-size: .72rem; font-weight: 500; color: var(--ink-soft); }

/* Hero antenna figure (signature) */
.hero__fig { position: relative; align-self: stretch; min-height: 340px; display: grid; place-items: center; }
.antenna { width: 100%; max-width: 420px; }
.antenna .ring { fill: none; stroke: var(--navy); stroke-width: 1; opacity: .18; }
.antenna .ring--live { stroke: var(--copper); opacity: 0; transform-origin: 210px 300px; animation: emit 4.6s var(--ease) infinite; }
.antenna .ring--live.d2 { animation-delay: 1.5s; }
.antenna .ring--live.d3 { animation-delay: 3s; }
.antenna .mast { stroke: var(--navy); stroke-width: 2; }
.antenna .node { fill: var(--copper); }
.antenna .grid-line { stroke: var(--line); stroke-width: 1; }
.antenna .tick-txt { font-family: var(--f-mono); font-size: 9px; fill: var(--steel); letter-spacing: .08em; }
@keyframes emit {
  0%   { opacity: 0; transform: scale(.35); }
  25%  { opacity: .55; }
  100% { opacity: 0; transform: scale(1.25); }
}

/* ---------- Feature / scope grid ---------- */
.grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 4px; overflow: hidden; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.cell {
  background: var(--paper-2); padding: clamp(26px, 3vw, 40px);
  transition: background .3s var(--ease);
}
.cell:hover { background: #FBFCFD; }
.cell__no { font-family: var(--f-mono); font-size: 12px; letter-spacing: .1em; color: var(--copper); font-weight: 600; }
.cell__ttl { font-family: var(--f-head); font-weight: 700; font-size: 1.2rem; color: var(--navy); margin-top: 14px; }
.cell__en { font-family: var(--f-mono); font-size: 10px; letter-spacing: .14em; color: var(--steel); text-transform: uppercase; margin-top: 4px; }
.cell__txt { color: var(--ink-soft); margin-top: 14px; font-size: .95rem; }
.cell__tags { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .04em;
  padding: 4px 10px; border: 1px solid var(--line-2); border-radius: 100px; color: var(--ink-soft);
}

/* ---------- Split intro (two column prose + aside) ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 5vw, 72px); align-items: start; }
.split__aside { border-left: 2px solid var(--copper); padding-left: 24px; }
.stat-row { display: flex; gap: 40px; flex-wrap: wrap; margin-top: 30px; }
.stat { }
.stat__n { font-family: var(--f-head); font-weight: 700; font-size: 2.3rem; color: var(--navy); letter-spacing: .01em; line-height: 1; }
.section--navy .stat__n { color: #fff; }
.stat__n small { font-size: .95rem; }
.stat__l { font-family: var(--f-mono); font-size: 11px; letter-spacing: .1em; color: var(--steel); text-transform: uppercase; margin-top: 8px; }
.section--navy .stat__l { color: #9FB1C2; }
.prose p + p { margin-top: 1.3em; }
.prose p { color: var(--ink-soft); }
.section--navy .prose p { color: #C5D2DE; }

/* ---------- Data table (会社概要) ---------- */
.spec { width: 100%; border-collapse: collapse; background: var(--paper-2); border: 1px solid var(--line); border-radius: 4px; overflow: hidden; }
.spec th, .spec td { text-align: left; padding: 18px 24px; border-bottom: 1px solid var(--line); vertical-align: top; }
.spec tr:last-child th, .spec tr:last-child td { border-bottom: 0; }
.spec th {
  width: 220px; font-family: var(--f-head); font-weight: 500; color: var(--navy);
  background: var(--paper); font-size: .95rem;
}
.spec td { color: var(--ink-soft); }
.spec .mono-code { font-family: var(--f-mono); font-size: .9rem; color: var(--ink); letter-spacing: .04em; }

/* ---------- Timeline (沿革) ---------- */
.timeline { border-left: 2px solid var(--line-2); margin-left: 6px; }
.tl {
  position: relative; padding: 0 0 42px 34px;
}
.tl:last-child { padding-bottom: 0; }
.tl::before {
  content: ""; position: absolute; left: -8px; top: 4px; width: 14px; height: 14px;
  background: var(--paper); border: 3px solid var(--copper); border-radius: 50%;
}
.tl__year { font-family: var(--f-mono); font-size: 13px; font-weight: 600; letter-spacing: .06em; color: var(--copper); }
.tl__era { font-family: var(--f-mono); font-size: 11px; color: var(--steel); margin-left: 8px; }
.tl__ttl { font-family: var(--f-head); font-weight: 700; font-size: 1.1rem; color: var(--navy); margin-top: 6px; }
.tl__txt { color: var(--ink-soft); margin-top: 8px; font-size: .95rem; max-width: 46em; }

/* ---------- Process (製品・サービス flow) ---------- */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 4px; overflow: hidden; }
.flow__step { background: var(--paper-2); padding: 30px 26px; position: relative; }
.flow__n { font-family: var(--f-mono); font-size: 12px; color: var(--copper); font-weight: 600; letter-spacing: .08em; }
.flow__t { font-family: var(--f-head); font-weight: 700; font-size: 1.12rem; color: var(--navy); margin-top: 12px; }
.flow__d { color: var(--ink-soft); font-size: .9rem; margin-top: 10px; }

/* ---------- Callout band ---------- */
.band { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: center; }
.band h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); color: #fff; }
.band p { color: #AEBECD; margin-top: 16px; }
.band__cta { display: flex; justify-content: flex-end; }

/* ---------- Contact form ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 64px); align-items: start; }
.form { display: grid; gap: 22px; }
.field { display: grid; gap: 8px; }
.field label { font-family: var(--f-head); font-weight: 500; font-size: .92rem; color: var(--navy); display: flex; align-items: center; gap: 10px; }
.req { font-family: var(--f-mono); font-size: 10px; letter-spacing: .08em; color: #fff; background: var(--copper); padding: 2px 7px; border-radius: 3px; }
.opt { font-family: var(--f-mono); font-size: 10px; letter-spacing: .08em; color: var(--steel); border: 1px solid var(--line-2); padding: 1px 7px; border-radius: 3px; }
.field input, .field textarea, .field select {
  font-family: var(--f-body); font-size: 1rem; color: var(--ink);
  padding: 14px 16px; border: 1px solid var(--line-2); background: var(--paper-2); border-radius: 4px;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
  width: 100%;
}
.field textarea { resize: vertical; min-height: 150px; line-height: 1.7; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--navy); box-shadow: 0 0 0 3px rgba(15, 44, 74, .12);
}
.field--half { }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.field .err { font-family: var(--f-mono); font-size: 12px; color: #B3261E; display: none; }
.field.is-invalid input, .field.is-invalid textarea { border-color: #B3261E; }
.field.is-invalid .err { display: block; }
.form__foot { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-top: 6px; }
.form__note { font-size: .82rem; color: var(--steel); }
.form__status { font-family: var(--f-mono); font-size: 13px; padding: 14px 18px; border-radius: 4px; display: none; }
.form__status.ok { display: block; background: #E7F1E9; color: #1E5631; border: 1px solid #BEDDC6; }
.form__status.ng { display: block; background: #FBEAE8; color: #8A231B; border: 1px solid #EFC7C2; }
.check { display: flex; gap: 12px; align-items: flex-start; }
.check input { width: 18px; height: 18px; margin-top: 4px; flex: none; }
.check label { font-family: var(--f-body); font-weight: 400; font-size: .88rem; color: var(--ink-soft); line-height: 1.6; }
.check a { color: var(--copper); text-decoration: underline; text-underline-offset: 2px; }

/* Contact info aside */
.cinfo { background: var(--paper-2); border: 1px solid var(--line); border-radius: 4px; padding: clamp(26px, 3vw, 38px); }
.cinfo__row { padding: 18px 0; border-bottom: 1px solid var(--line); }
.cinfo__row:first-child { padding-top: 0; }
.cinfo__row:last-child { border-bottom: 0; padding-bottom: 0; }
.cinfo__k { font-family: var(--f-mono); font-size: 11px; letter-spacing: .12em; color: var(--copper); text-transform: uppercase; }
.cinfo__v { margin-top: 6px; color: var(--ink); }
.cinfo__v .big { font-family: var(--f-head); font-weight: 700; font-size: 1.3rem; color: var(--navy); letter-spacing: .02em; }
.map-embed { margin-top: 22px; border: 1px solid var(--line); border-radius: 4px; overflow: hidden; aspect-ratio: 16 / 9; background: var(--paper-3); }
.map-embed iframe { width: 100%; height: 100%; border: 0; }

/* ---------- Page hero (sub pages) ---------- */
.page-hero { background: var(--navy); color: #fff; position: relative; overflow: hidden; }
.page-hero__inner { padding-block: clamp(60px, 8vw, 96px); position: relative; z-index: 1; }
.page-hero .eyebrow { color: #E0A662; margin-bottom: 18px; }
.page-hero .eyebrow::before { background: #E0A662; }
.page-hero h1 { font-size: clamp(1.9rem, 4.6vw, 3rem); color: #fff; letter-spacing: .03em; }
.page-hero p { color: #B4C4D3; margin-top: 18px; max-width: 40em; }
.page-hero__deco { position: absolute; right: -60px; top: 50%; transform: translateY(-50%); opacity: .16; pointer-events: none; }
.crumb { font-family: var(--f-mono); font-size: 12px; letter-spacing: .1em; color: #8AA0B5; margin-bottom: 22px; }
.crumb a:hover { color: #E0A662; }
.crumb span { color: #5B7086; }

/* ---------- Greeting (代表挨拶) ---------- */
.greeting { display: grid; grid-template-columns: 1fr 320px; gap: clamp(30px, 5vw, 64px); align-items: start; }
.greeting__body p + p { margin-top: 1.4em; }
.greeting__body p { color: var(--ink-soft); }
.sign { margin-top: 34px; padding-top: 24px; border-top: 1px solid var(--line); }
.sign--photo { display: flex; align-items: center; gap: 24px; }
.sign__role { font-family: var(--f-mono); font-size: 11px; letter-spacing: .12em; color: var(--steel); text-transform: uppercase; }
.sign__name { font-family: var(--f-head); font-weight: 700; font-size: 1.5rem; color: var(--navy); margin-top: 6px; letter-spacing: .08em; }
.sign__name small { display: block; font-family: var(--f-mono); font-weight: 500; font-size: 11px; letter-spacing: .1em; color: var(--steel); margin-top: 6px; text-transform: none; }

/* President portrait */
.portrait {
  width: 128px; height: 164px; flex: none; border-radius: 5px; overflow: hidden;
  border: 1px solid var(--line); background: var(--paper-3); position: relative;
  box-shadow: var(--shadow);
}
.portrait img { width: 100%; height: 100%; object-fit: cover; display: block; }
.portrait::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(15, 44, 74, .06);
}
.portrait--empty::before {
  content: "PORTRAIT"; position: absolute; inset: 0; display: grid; place-items: center;
  font-family: var(--f-mono); font-size: 10px; letter-spacing: .14em; color: var(--steel);
}
@media (max-width: 480px) {
  .sign--photo { gap: 18px; }
  .portrait { width: 104px; height: 134px; }
  .sign__name { font-size: 1.3rem; }
}
.pillar-card { background: var(--paper); border: 1px solid var(--line); border-radius: 4px; padding: 28px; }
.pillar-card + .pillar-card { margin-top: 16px; }
.pillar-card__k { font-family: var(--f-mono); font-size: 11px; color: var(--copper); letter-spacing: .1em; }
.pillar-card__t { font-family: var(--f-head); font-weight: 700; font-size: 1.05rem; color: var(--navy); margin-top: 8px; }
.pillar-card__d { font-size: .88rem; color: var(--ink-soft); margin-top: 8px; }

/* ---------- Business detail blocks ---------- */
.biz { display: grid; grid-template-columns: 96px 1fr; gap: clamp(20px, 3vw, 40px); padding-block: clamp(38px, 5vw, 56px); border-top: 1px solid var(--line); align-items: start; }
.biz:first-of-type { border-top: 0; }
.biz__no { font-family: var(--f-mono); font-weight: 600; font-size: 1.4rem; color: var(--copper); letter-spacing: .04em; padding-top: 4px; }
.biz__ttl { font-family: var(--f-head); font-weight: 700; font-size: clamp(1.3rem, 2.4vw, 1.7rem); color: var(--navy); }
.biz__en { font-family: var(--f-mono); font-size: 11px; letter-spacing: .16em; color: var(--steel); text-transform: uppercase; margin-top: 6px; }
.biz__txt { color: var(--ink-soft); margin-top: 18px; max-width: 52em; }
.biz__list { margin-top: 20px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 30px; max-width: 640px; }
.biz__list li { position: relative; padding-left: 22px; font-size: .92rem; color: var(--ink); }
.biz__list li::before { content: "▸"; position: absolute; left: 0; color: var(--copper); font-family: var(--f-mono); }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-3); color: #A9BBCB; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-block: clamp(48px, 6vw, 72px); }
.footer-brand .brand__jp { color: #fff; }
.footer-brand .brand__en { color: #6F869C; }
.footer-brand p { margin-top: 18px; font-size: .88rem; color: #8DA1B4; max-width: 30em; }
.footer-col h4 { font-family: var(--f-mono); font-weight: 500; font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: #6F869C; margin-bottom: 18px; }
.footer-col a { display: block; padding: 6px 0; font-size: .92rem; color: #C2D2E0; transition: color .2s var(--ease); }
.footer-col a:hover { color: #E0A662; }
.footer-addr { font-size: .9rem; color: #A9BBCB; line-height: 1.9; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-block: 22px; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.footer-bottom small { font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; color: #6F869C; }
.footer-bottom .to-top { font-family: var(--f-mono); font-size: 11px; letter-spacing: .1em; color: #8DA1B4; }
.footer-bottom .to-top:hover { color: #E0A662; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__fig { order: -1; min-height: 240px; }
  .antenna { max-width: 320px; }
  .split, .greeting, .contact-grid, .band { grid-template-columns: 1fr; }
  .band__cta { justify-content: flex-start; }
  .grid--3 { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .greeting__aside { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .pillar-card + .pillar-card { margin-top: 0; }
}
@media (max-width: 720px) {
  .nav { flex-wrap: wrap; height: auto; min-height: 74px; }
  .nav__links, .nav__cta { display: none; flex-basis: 100%; }
  .nav__toggle { display: block; }
  .site-header.open .nav { padding-bottom: 14px; }
  .site-header.open .nav__links {
    display: flex; flex-direction: column; align-items: stretch; gap: 0;
    order: 3; width: 100%; margin-top: 10px; border-top: 1px solid var(--line);
  }
  .site-header.open .nav__links a { padding: 15px 4px; border-bottom: 1px solid var(--line); }
  .site-header.open .nav__links a[aria-current="page"]::after { display: none; }
  .site-header.open .nav__links a .lbl-en { display: inline; margin-left: 8px; color: var(--steel); }
  .site-header.open .nav__cta { display: block; order: 4; width: 100%; margin: 12px 0 0; }
  .site-header.open .nav__cta .btn { width: 100%; justify-content: center; }
  .readout { grid-template-columns: 1fr; }
  .readout__cell { border-left: 0; border-top: 1px solid var(--line); }
  .readout__cell:first-child { border-top: 0; }
  .grid--3, .grid--2, .flow { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .biz { grid-template-columns: 1fr; gap: 10px; }
  .biz__no { padding-top: 0; }
  .biz__list { grid-template-columns: 1fr; }
  .greeting { grid-template-columns: 1fr; }
  .greeting__aside { grid-template-columns: 1fr; }
  .spec th { width: 130px; padding: 14px 16px; }
  .spec td { padding: 14px 16px; }
  .footer-top { grid-template-columns: 1fr; gap: 30px; }
}

/* ---------- Accessibility ---------- */
:focus-visible { outline: 2px solid var(--copper); outline-offset: 3px; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}