/* =============================================================
   株式会社ワシノミヤ電子東京 — Digital Store
   Design: "Instrument precision" — Navy × Copper, mono technical labels
   コーポレートサイト（washinomiya-denshi-lp）の意匠を継承
   ============================================================= */

/* ---------- 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;
  --ok:         #1E5631;
  --ok-bg:      #E7F1E9;
  --warn:       #8A5A14;
  --warn-bg:    #FBF3E4;
  --ng:         #8A231B;
  --ng-bg:      #FBEAE8;

  --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; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gut); }
.section { padding-block: clamp(56px, 8vw, 104px); }
.section--tight { padding-block: clamp(40px, 5vw, 64px); }
.section--navy { background: var(--navy); color: #E7EDF3; }
.section--paper2 { background: var(--paper-2); }
.section--line { border-top: 1px solid var(--line); }

/* ---------- Eyebrow / labels ---------- */
.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, .page-hero .eyebrow { color: #E0A662; }
.section--navy .eyebrow::before, .page-hero .eyebrow::before { background: #E0A662; }
.mono { font-family: var(--f-mono); }

/* ---------- Headings ---------- */
.h-lead { font-size: clamp(1.6rem, 3.4vw, 2.5rem); letter-spacing: .02em; color: var(--navy); }
.h-lead .accent { color: var(--copper); }
.section--navy .h-lead { color: #fff; }
.section--navy .h-lead .accent { color: #E0A662; }
.section-head { max-width: 720px; margin-bottom: clamp(30px, 4vw, 52px); }
.section-head .eyebrow { margin-bottom: 16px; }
.section-head p { color: var(--ink-soft); margin-top: 16px; }
.section--navy .section-head p { color: #AEBECD; }
.section-head--row { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; max-width: none; flex-wrap: wrap; }
.section-head--row .more { font-family: var(--f-mono); font-size: 12px; letter-spacing: .1em; color: var(--copper); }
.section-head--row .more:hover { text-decoration: underline; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  padding: 14px 24px; font-family: var(--f-head); font-weight: 500; font-size: .95rem; letter-spacing: .04em;
  border: 1px solid transparent; border-radius: 3px;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), opacity .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--navy { background: var(--navy); color: #fff; }
.btn--navy:hover { background: var(--navy-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); }
.btn--block { width: 100%; }
.btn--lg { padding: 18px 30px; font-size: 1.05rem; }
.btn[disabled], .btn.is-disabled { background: var(--paper-3); color: var(--steel); border-color: var(--line); cursor: not-allowed; pointer-events: none; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(243, 245, 247, .9); backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 10px; }
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand__mark { width: 34px; height: 34px; flex: none; }
.brand__name { line-height: 1.15; min-width: 0; }
.brand__jp { font-family: var(--f-head); font-weight: 700; font-size: 1rem; letter-spacing: .02em; color: var(--navy); white-space: nowrap; }
.brand__en { font-family: var(--f-mono); font-size: 9.5px; letter-spacing: .2em; color: var(--steel); text-transform: uppercase; white-space: nowrap; }
.brand__store { font-family: var(--f-mono); font-size: 9.5px; letter-spacing: .14em; color: var(--copper); margin-left: 8px; }

.nav__links { display: flex; align-items: center; gap: 2px; }
.nav__links a { padding: 10px 12px; font-family: var(--f-head); font-weight: 500; font-size: .9rem; color: var(--ink); position: relative; white-space: nowrap; 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: 12px; right: 12px; bottom: 4px; height: 2px; background: var(--copper); }

.nav__tools { display: flex; align-items: center; gap: 8px; }
.cart-link {
  display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px;
  border: 1px solid var(--line-2); border-radius: 3px; background: var(--paper-2);
  font-family: var(--f-head); font-weight: 500; font-size: .88rem; color: var(--navy); white-space: nowrap;
  transition: border-color .2s var(--ease);
}
.cart-link:hover { border-color: var(--navy); }
.cart-link svg { width: 18px; height: 18px; }
.cart-link__n {
  font-family: var(--f-mono); font-size: 11px; min-width: 20px; height: 20px; padding: 0 6px;
  display: inline-grid; place-items: center; border-radius: 100px; background: var(--copper); color: #fff;
}
.cart-link__n[data-n="0"] { background: var(--paper-3); color: var(--steel); }

.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 (top) ---------- */
.hero { position: relative; overflow: hidden; background: var(--paper); border-bottom: 1px solid var(--line); }
.hero__inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(24px, 4vw, 56px); align-items: center; padding-block: clamp(48px, 7vw, 92px); }
.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: 22px; }
.hero__kicker b { color: var(--copper); font-weight: 500; }
.hero h1 { font-size: clamp(1.9rem, 5vw, 3.3rem); line-height: 1.28; letter-spacing: .015em; color: var(--navy); }
.hero h1 .cu { color: var(--copper); }
.hero__lead { margin-top: 24px; max-width: 34em; color: var(--ink-soft); font-size: 1.02rem; }
.hero__cta { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }
.readout { margin-top: 44px; 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: 1.1rem; color: var(--navy); margin-top: 4px; }
.readout__v small { font-size: .72rem; font-weight: 500; color: var(--ink-soft); }

/* Hero figure: document stack */
.hero__fig { position: relative; align-self: stretch; min-height: 320px; display: grid; place-items: center; }
.docstack { width: 100%; max-width: 420px; }
.docstack .sheet { fill: var(--paper-2); stroke: var(--line-2); stroke-width: 1; }
.docstack .sheet--front { filter: drop-shadow(0 10px 24px rgba(15,44,74,.10)); }
.docstack .rule { stroke: var(--line); stroke-width: 1; }
.docstack .rule--cu { stroke: var(--copper); stroke-width: 2; }
.docstack .tick-txt { font-family: var(--f-mono); font-size: 9px; fill: var(--steel); letter-spacing: .08em; }
.docstack .badge { fill: var(--navy); }
.docstack .badge-txt { font-family: var(--f-mono); font-size: 8px; fill: #fff; letter-spacing: .12em; }
.docstack .ring { fill: none; stroke: var(--copper); stroke-width: 1; opacity: .35; }

/* ---------- Grid cells ---------- */
.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--4 { grid-template-columns: repeat(4, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.cell { background: var(--paper-2); padding: clamp(22px, 2.6vw, 34px); transition: background .3s var(--ease); display: block; }
.cell:hover { background: #FBFCFD; }
a.cell:hover .cell__ttl { color: var(--copper); }
.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: 1.12rem; color: var(--navy); margin-top: 12px; transition: color .2s var(--ease); }
.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: 12px; font-size: .92rem; }
.cell__meta { margin-top: 16px; font-family: var(--f-mono); font-size: 11px; color: var(--steel); letter-spacing: .06em; }
.tag { font-family: var(--f-mono); font-size: 11px; letter-spacing: .04em; padding: 3px 9px; border: 1px solid var(--line-2); border-radius: 100px; color: var(--ink-soft); display: inline-block; }

/* ---------- Price tiers ---------- */
.tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.tier { background: var(--paper-2); border: 1px solid var(--line); border-radius: 4px; padding: 28px; position: relative; overflow: hidden; }
.tier::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--steel); }
.tier--b::before { background: var(--navy); }
.tier--c::before { background: var(--copper); }
.tier__k { font-family: var(--f-mono); font-size: 11px; letter-spacing: .14em; color: var(--copper); text-transform: uppercase; }
.tier__range { font-family: var(--f-head); font-weight: 700; font-size: 1.5rem; color: var(--navy); margin-top: 8px; letter-spacing: .02em; }
.tier__range small { font-size: .8rem; font-weight: 500; color: var(--steel); margin-left: 4px; }
.tier__t { font-family: var(--f-head); font-weight: 700; font-size: 1.05rem; color: var(--ink); margin-top: 14px; }
.tier__d { color: var(--ink-soft); font-size: .9rem; margin-top: 8px; }
.tier__who { margin-top: 14px; font-size: .85rem; color: var(--steel); }
.tier__who b { color: var(--ink); font-weight: 500; }

/* ---------- 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: 28px 24px; }
.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: 1.08rem; color: var(--navy); margin-top: 12px; }
.flow__d { color: var(--ink-soft); font-size: .9rem; margin-top: 10px; }

/* ---------- Product cards ---------- */
.pgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.pgrid--4 { grid-template-columns: repeat(4, 1fr); }
.pcard {
  background: var(--paper-2); border: 1px solid var(--line); border-radius: 4px; overflow: hidden;
  display: flex; flex-direction: column; transition: border-color .25s var(--ease), box-shadow .25s var(--ease), transform .25s var(--ease);
  position: relative;
}
.pcard:hover { border-color: var(--line-2); box-shadow: var(--shadow); transform: translateY(-2px); }
.pcard.is-hidden { display: none; }
.pcard__thumb { aspect-ratio: 16 / 10; background: var(--paper-3); border-bottom: 1px solid var(--line); overflow: hidden; }
.pcard__thumb img { width: 100%; height: 100%; object-fit: cover; }
.pcard__body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.pcard__top { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.pcard__no { font-family: var(--f-mono); font-size: 11px; letter-spacing: .1em; color: var(--steel); }
.pcard__ttl { font-family: var(--f-head); font-weight: 700; font-size: 1.02rem; color: var(--navy); margin-top: 10px; line-height: 1.45; }
.pcard__ttl a::after { content: ""; position: absolute; inset: 0; }
.pcard__sum { color: var(--ink-soft); font-size: .88rem; margin-top: 8px; flex: 1; }
.pcard__foot { margin-top: 16px; display: flex; justify-content: space-between; align-items: flex-end; gap: 10px; flex-wrap: wrap; }
.pcard__fmt { display: flex; gap: 6px; flex-wrap: wrap; }
.price { font-family: var(--f-head); font-weight: 700; color: var(--navy); letter-spacing: .01em; white-space: nowrap; }
.price small { font-size: .7em; font-weight: 500; color: var(--steel); margin-left: 2px; }
.pcard .price { font-size: 1.2rem; }

/* status / badges */
.badge { font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .1em; padding: 3px 9px; border-radius: 3px; display: inline-block; white-space: nowrap; }
.badge--on { background: var(--ok-bg); color: var(--ok); border: 1px solid #BEDDC6; }
.badge--off { background: var(--paper-3); color: var(--steel); border: 1px solid var(--line-2); }
.badge--lic { background: var(--copper-tint); color: var(--copper-2); border: 1px solid #E5CFB4; }
.badge--tier { background: var(--paper); color: var(--ink-soft); border: 1px solid var(--line-2); }
.badge--corp { background: var(--navy); color: #fff; border: 1px solid var(--navy); }

/* ---------- Catalog page (filters + list) ---------- */
.catalog { display: grid; grid-template-columns: 260px 1fr; gap: clamp(24px, 3vw, 44px); align-items: start; }
.filters { position: sticky; top: 90px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 4px; padding: 22px; }
.filters__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.filters__head h2 { font-size: 1rem; color: var(--navy); }
.filters__reset { font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; color: var(--copper); background: none; border: 0; padding: 4px 0; }
.filters__reset:hover { text-decoration: underline; }
.fgroup { padding: 16px 0; border-top: 1px solid var(--line); }
.fgroup__t { font-family: var(--f-mono); font-size: 11px; letter-spacing: .14em; color: var(--steel); text-transform: uppercase; margin-bottom: 10px; }
.fopt { display: flex; align-items: center; gap: 10px; padding: 5px 0; font-size: .9rem; color: var(--ink); cursor: pointer; }
.fopt input { width: 16px; height: 16px; accent-color: var(--copper); flex: none; }
.fopt .n { margin-left: auto; font-family: var(--f-mono); font-size: 11px; color: var(--steel); }
.filters__toggle { display: none; }

.catalog__bar { display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.catalog__count { font-family: var(--f-mono); font-size: 12px; letter-spacing: .08em; color: var(--steel); }
.catalog__count b { color: var(--navy); font-weight: 600; }
.sort { display: flex; align-items: center; gap: 10px; font-size: .88rem; color: var(--ink-soft); }
.sort select { font-family: var(--f-body); font-size: .9rem; padding: 8px 12px; border: 1px solid var(--line-2); border-radius: 3px; background: var(--paper-2); color: var(--ink); }
.catalog__empty { display: none; padding: 48px 24px; text-align: center; color: var(--ink-soft); background: var(--paper-2); border: 1px dashed var(--line-2); border-radius: 4px; }
.catalog__empty.is-on { display: block; }

/* ---------- Product detail ---------- */
.pd { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(28px, 4vw, 60px); align-items: start; }
.pd__media { position: sticky; top: 94px; }
.pd__img { border: 1px solid var(--line); border-radius: 4px; overflow: hidden; background: var(--paper-3); aspect-ratio: 16 / 10; }
.pd__img img { width: 100%; height: 100%; object-fit: cover; }
.pd__imgnote { font-family: var(--f-mono); font-size: 11px; color: var(--steel); margin-top: 10px; letter-spacing: .06em; }
.pd__crumb { font-family: var(--f-mono); font-size: 12px; letter-spacing: .08em; color: var(--steel); display: flex; gap: 8px; flex-wrap: wrap; }
.pd__crumb a:hover { color: var(--copper); }
.pd__badges { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 18px; }
.pd h1 { font-size: clamp(1.45rem, 3vw, 2.1rem); color: var(--navy); margin-top: 14px; }
.pd__sum { color: var(--ink-soft); margin-top: 12px; font-size: 1.02rem; }
.pd__buy { margin-top: 26px; padding: 24px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 4px; }
.pd__price { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.pd__price .price { font-size: 2rem; }
.pd__price .tax { font-family: var(--f-mono); font-size: 11px; color: var(--steel); letter-spacing: .06em; }
.pd__actions { margin-top: 18px; display: grid; gap: 10px; }
.pd__state { margin-top: 12px; font-size: .85rem; color: var(--ink-soft); }
.pd__state--off { color: var(--warn); }
.pd__spec { margin-top: 26px; }
.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: 14px 18px; border-bottom: 1px solid var(--line); vertical-align: top; font-size: .95rem; }
.spec tr:last-child th, .spec tr:last-child td { border-bottom: 0; }
.spec th { width: 180px; font-family: var(--f-head); font-weight: 500; color: var(--navy); background: var(--paper); }
.spec td { color: var(--ink-soft); }
.spec .mono-code { font-family: var(--f-mono); font-size: .9rem; color: var(--ink); letter-spacing: .04em; }
.pd__desc { margin-top: 30px; }
.pd__desc h2 { font-size: 1.15rem; color: var(--navy); margin-bottom: 12px; }
.pd__desc p { color: var(--ink-soft); }
.pd__desc p + p { margin-top: 1em; }
.pd__desc ul { margin-top: 10px; display: grid; gap: 6px; }
.pd__desc li { position: relative; padding-left: 20px; color: var(--ink); font-size: .95rem; }
.pd__desc li::before { content: "▸"; position: absolute; left: 0; color: var(--copper); font-family: var(--f-mono); }
.pd__desc li a { color: var(--navy); border-bottom: 1px solid var(--line-2); }
.pd__desc li a:hover { color: var(--copper); border-color: var(--copper); }
.pd__desc li .mono { color: var(--steel); font-size: .85em; margin-right: 8px; }

/* notice box */
.notice { border: 1px solid #E5CFB4; background: var(--warn-bg); border-radius: 4px; padding: 18px 20px; margin-top: 22px; }
.notice__t { font-family: var(--f-mono); font-size: 11px; letter-spacing: .14em; color: var(--copper-2); text-transform: uppercase; }
.notice ul { margin-top: 10px; display: grid; gap: 6px; }
.notice li { font-size: .9rem; color: var(--ink); position: relative; padding-left: 18px; }
.notice li::before { content: "※"; position: absolute; left: 0; color: var(--copper-2); }

/* ---------- Cart ---------- */
.cart { display: grid; grid-template-columns: 1fr 360px; gap: clamp(24px, 3vw, 44px); align-items: start; }
.cart__list { background: var(--paper-2); border: 1px solid var(--line); border-radius: 4px; }
.citem { display: grid; grid-template-columns: 96px 1fr auto; gap: 18px; padding: 18px 20px; border-bottom: 1px solid var(--line); align-items: center; }
.citem:last-child { border-bottom: 0; }
.citem__thumb { aspect-ratio: 16 / 10; background: var(--paper-3); border: 1px solid var(--line); border-radius: 3px; overflow: hidden; }
.citem__thumb img { width: 100%; height: 100%; object-fit: cover; }
.citem__ttl { font-family: var(--f-head); font-weight: 700; color: var(--navy); font-size: .98rem; }
.citem__meta { font-family: var(--f-mono); font-size: 11px; color: var(--steel); margin-top: 4px; letter-spacing: .06em; }
.citem__right { text-align: right; }
.citem__rm { font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; color: var(--steel); background: none; border: 0; padding: 4px 0; margin-top: 6px; }
.citem__rm:hover { color: var(--ng); text-decoration: underline; }
.cart__empty { padding: 56px 24px; text-align: center; color: var(--ink-soft); }
.cart__empty .btn { margin-top: 20px; }
.summary { background: var(--paper-2); border: 1px solid var(--line); border-radius: 4px; padding: 24px; position: sticky; top: 94px; }
.summary h2 { font-size: 1.05rem; color: var(--navy); }
.summary__row { display: flex; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: .92rem; color: var(--ink-soft); }
.summary__row--total { border-bottom: 0; padding-top: 16px; color: var(--ink); align-items: baseline; }
.summary__row--total .price { font-size: 1.6rem; }
.summary__note { font-size: .8rem; color: var(--steel); margin-top: 14px; line-height: 1.7; }
.summary .btn { margin-top: 18px; }
.summary .check { margin-top: 16px; }

/* ---------- Thanks / downloads ---------- */
.dl-list { display: grid; gap: 12px; margin-top: 24px; }
.dl { background: var(--paper-2); border: 1px solid var(--line); border-radius: 4px; padding: 18px 20px; display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: center; }
.dl__t { font-family: var(--f-head); font-weight: 700; color: var(--navy); }
.dl__m { font-family: var(--f-mono); font-size: 11px; color: var(--steel); margin-top: 4px; letter-spacing: .06em; }
.status-box { padding: 18px 20px; border-radius: 4px; border: 1px solid var(--line); background: var(--paper-2); font-size: .95rem; color: var(--ink-soft); }
.status-box.ok { background: var(--ok-bg); border-color: #BEDDC6; color: var(--ok); }
.status-box.ng { background: var(--ng-bg); border-color: #EFC7C2; color: var(--ng); }

/* ---------- Prose (legal pages) ---------- */
.prose { max-width: 820px; }
.prose h2 { font-size: 1.25rem; color: var(--navy); margin-top: 2.2em; padding-top: .9em; border-top: 1px solid var(--line); }
.prose h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.prose h3 { font-size: 1.05rem; color: var(--navy); margin-top: 1.6em; }
.prose p { color: var(--ink-soft); margin-top: .9em; }
.prose ul, .prose ol { margin-top: .8em; padding-left: 1.5em; display: grid; gap: .35em; color: var(--ink-soft); }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li { color: var(--ink-soft); }
.prose a { color: var(--copper); text-decoration: underline; text-underline-offset: 2px; }
.prose .spec { margin-top: 1.2em; }
.prose .updated { font-family: var(--f-mono); font-size: 12px; color: var(--steel); letter-spacing: .06em; margin-top: 2em; }
.prose table.lic { width: 100%; border-collapse: collapse; margin-top: 1.2em; background: var(--paper-2); border: 1px solid var(--line); font-size: .92rem; }
.prose table.lic th, .prose table.lic td { padding: 12px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.prose table.lic th { background: var(--paper); color: var(--navy); font-family: var(--f-head); font-weight: 500; }
.prose table.lic tr:last-child td { border-bottom: 0; }

/* ---------- FAQ ---------- */
.faq { max-width: 860px; }
.faq details { background: var(--paper-2); border: 1px solid var(--line); border-radius: 4px; margin-top: 10px; }
.faq summary { list-style: none; cursor: pointer; padding: 18px 22px; font-family: var(--f-head); font-weight: 700; color: var(--navy); display: flex; gap: 14px; align-items: flex-start; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "Q"; font-family: var(--f-mono); color: var(--copper); font-weight: 600; flex: none; }
.faq details[open] summary { border-bottom: 1px solid var(--line); }
.faq .a { padding: 16px 22px 20px 48px; color: var(--ink-soft); font-size: .95rem; }
.faq .a a { color: var(--copper); text-decoration: underline; }
.faq h2 { font-size: 1.1rem; color: var(--navy); margin-top: 2em; }
.faq h2:first-child { margin-top: 0; }

/* ---------- Callout band ---------- */
.band { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: center; }
.band h2 { font-size: clamp(1.4rem, 2.8vw, 2rem); color: #fff; }
.band p { color: #AEBECD; margin-top: 14px; }
.band__cta { display: flex; justify-content: flex-end; gap: 12px; flex-wrap: wrap; }

/* ---------- Contact form ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 64px); align-items: start; }
.form { display: grid; gap: 20px; }
.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: 13px 16px; border: 1px solid var(--line-2);
  background: var(--paper-2); border-radius: 4px; width: 100%; transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.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-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field .err { font-family: var(--f-mono); font-size: 12px; color: #B3261E; display: none; }
.field.is-invalid input, .field.is-invalid textarea, .field.is-invalid select { 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: var(--ok-bg); color: var(--ok); border: 1px solid #BEDDC6; }
.form__status.ng { display: block; background: var(--ng-bg); color: var(--ng); border: 1px solid #EFC7C2; }
.check { display: flex; gap: 12px; align-items: flex-start; }
.check input { width: 18px; height: 18px; margin-top: 4px; flex: none; accent-color: var(--copper); }
.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; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.cinfo { background: var(--paper-2); border: 1px solid var(--line); border-radius: 4px; padding: clamp(24px, 3vw, 36px); }
.cinfo__row { padding: 16px 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: 1.25rem; color: var(--navy); letter-spacing: .02em; }
.cinfo__v a { color: var(--copper); }

/* ---------- Page hero (sub pages) ---------- */
.page-hero { background: var(--navy); color: #fff; position: relative; overflow: hidden; }
.page-hero--slim .page-hero__inner { padding-block: clamp(36px, 5vw, 56px); }
.page-hero__inner { padding-block: clamp(52px, 7vw, 84px); position: relative; z-index: 1; }
.page-hero .eyebrow { margin-bottom: 16px; }
.page-hero h1 { font-size: clamp(1.7rem, 4.2vw, 2.7rem); color: #fff; letter-spacing: .03em; }
.page-hero p { color: #B4C4D3; margin-top: 16px; max-width: 42em; }
.page-hero__deco { position: absolute; right: -60px; top: 50%; transform: translateY(-50%); opacity: .14; pointer-events: none; }
.crumb { font-family: var(--f-mono); font-size: 12px; letter-spacing: .1em; color: #8AA0B5; margin-bottom: 20px; display: flex; gap: 8px; flex-wrap: wrap; }
.crumb a:hover { color: #E0A662; }
.crumb span { color: #5B7086; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); opacity: 0; z-index: 90;
  background: var(--navy-3); color: #fff; padding: 14px 20px; border-radius: 4px; box-shadow: var(--shadow);
  font-size: .92rem; display: flex; gap: 16px; align-items: center; pointer-events: none;
  transition: opacity .25s var(--ease), transform .25s var(--ease); max-width: calc(100vw - 32px);
}
.toast.is-on { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; }
.toast a { color: #E0A662; font-family: var(--f-mono); font-size: 12px; letter-spacing: .08em; white-space: nowrap; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-3); color: #A9BBCB; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; padding-block: clamp(44px, 6vw, 68px); }
.footer-brand .brand__jp { color: #fff; }
.footer-brand .brand__en { color: #6F869C; }
.footer-brand p { margin-top: 16px; font-size: .86rem; 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: 16px; }
.footer-col a { display: block; padding: 5px 0; font-size: .9rem; color: #C2D2E0; transition: color .2s var(--ease); }
.footer-col a:hover { color: #E0A662; }
.footer-addr { font-size: .88rem; color: #A9BBCB; line-height: 1.9; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-block: 20px; 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 ---------- */
/* JS が動く環境でだけ隠す（html.js は main.js が付ける）。JS 無効でも内容は見える */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .pgrid--4 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 960px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__fig { order: -1; min-height: 220px; }
  .docstack { max-width: 300px; }
  .tiers { grid-template-columns: 1fr; }
  .grid--3 { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .pgrid, .pgrid--4 { grid-template-columns: repeat(2, 1fr); }
  .catalog { grid-template-columns: 1fr; }
  .filters { position: static; }
  .filters__toggle { display: inline-flex; margin-bottom: 14px; }
  .filters__body { display: none; }
  .filters.open .filters__body { display: block; }
  .pd { grid-template-columns: 1fr; }
  .pd__media { position: static; }
  .cart { grid-template-columns: 1fr; }
  .summary { position: static; }
  .contact-grid, .band { grid-template-columns: 1fr; }
  .band__cta { justify-content: flex-start; }
}
@media (max-width: 720px) {
  .nav { flex-wrap: wrap; height: auto; min-height: 66px; padding-block: 8px; }
  .nav__links { display: none; flex-basis: 100%; }
  .nav__toggle { display: block; }
  .nav__tools { margin-left: auto; }
  .cart-link span.cart-link__t { display: none; }
  .site-header.open .nav__links { display: flex; flex-direction: column; align-items: stretch; gap: 0; order: 3; width: 100%; margin-top: 8px; border-top: 1px solid var(--line); }
  .site-header.open .nav__links a { padding: 14px 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; }
  .brand__en { display: none; }
  .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, .grid--4, .flow { grid-template-columns: 1fr; }
  .pgrid, .pgrid--4 { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .spec th { width: 110px; padding: 12px 14px; }
  .spec td { padding: 12px 14px; }
  .citem { grid-template-columns: 72px 1fr; }
  .citem__right { grid-column: 1 / -1; text-align: left; display: flex; justify-content: space-between; align-items: center; }
  .citem__rm { margin-top: 0; }
  .dl { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .pd__price .price { font-size: 1.7rem; }
}

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