@charset "UTF-8";
/* Okura Chem-Tech rebrand: graph paper ground, blueprint blue, line drawings. Tokens first; use them, not raw values. */
:root {
  --blue: #2d4291;      /* the logo / header blue of the company = main colour */
  --blue-d: #1c2a68;    /* deep: footer, dark planes */
  --blue-b: #3560c8;    /* bright side of the MV field */
  --sky: #7eacd0;       /* the pale blue of the K mark on the current site */
  --pale: #e6eefa;      /* planes */
  --pale-2: #f1f5fc;
  --ink: #131d3a;
  --ink-2: #2e3854;
  --ink-3: #5b6682;
  --coral: #dd4a32;     /* contact CTA only */
  --coral-d: #c23c26;
  --white: #fff;
  --grid-1: rgba(45, 66, 145, .05);
  --grid-2: rgba(45, 66, 145, .11);
  --jp: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  --en: "IBM Plex Sans", "Noto Sans JP", sans-serif;
  --mono: "IBM Plex Mono", "IBM Plex Sans", monospace;
  --fs-display: clamp(44px, 6.4vw, 96px);
  --fs-h2: clamp(26px, 3.2vw, 46px);
  --fs-h3: clamp(21px, 2.3vw, 32px);
  --fs-h4: clamp(18px, 1.6vw, 22px);
  --fs-lead: clamp(16px, 1.25vw, 18px);
  --fs-body: 16px;
  --fs-small: 14px;
  --fs-caption: 12px;
  --wrap: 1200px;
  --gutter: clamp(20px, 5vw, 64px);
  --sec: clamp(72px, 9.5vw, 144px);
  --r: 20px;
  --r-s: 12px;
  --cell: 16px;         /* one small square of the graph paper */
  --hd-gap: 14px;
  --hd-bar: 68px;
  --spbar: 0px;
}
@media (max-width: 760px) { :root { --hd-gap: 8px; --hd-bar: 56px; } }
@media (max-width: 640px) { :root { --spbar: 64px; } }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--hd-bar) + var(--hd-gap) * 2 + 12px); font-variant-numeric: lining-nums; }
html, body { overflow-x: clip; }
body {
  margin: 0; color: var(--ink-2); font: 500 var(--fs-body)/2 var(--jp); letter-spacing: .05em;
  font-feature-settings: "palt" 0; -webkit-font-smoothing: antialiased;
  padding-bottom: calc(var(--spbar) + env(safe-area-inset-bottom, 0px));
  /* graph paper: 16px squares, a stronger line every 5 squares */
  background-color: #fff;
  background-image:
    linear-gradient(var(--grid-2) 1px, transparent 1px), linear-gradient(90deg, var(--grid-2) 1px, transparent 1px),
    linear-gradient(var(--grid-1) 1px, transparent 1px), linear-gradient(90deg, var(--grid-1) 1px, transparent 1px);
  background-size: calc(var(--cell) * 5) calc(var(--cell) * 5), calc(var(--cell) * 5) calc(var(--cell) * 5), var(--cell) var(--cell), var(--cell) var(--cell);
  background-position: -1px -1px;
}
h1, h2, h3, h4, h5, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
table { border-collapse: collapse; width: 100%; }
:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; z-index: 2000; background: #fff; color: var(--blue); padding: 8px 16px; border-radius: 8px; }
[hidden] { display: none !important; }
.nw { white-space: nowrap; }
.ln { display: block; }
.sp-only { display: none; }
@media (max-width: 760px) { .sp-only { display: inline; } .pc-only { display: none; } }

/* line breaking (main.js adds .phr, .is-flow, .is-just) */
.phr main, .phr footer, .phr .cta { word-break: keep-all; overflow-wrap: anywhere; }
.is-flow { word-break: normal; line-break: strict; overflow-wrap: anywhere; }
.is-just { text-align: justify; text-justify: inter-character; }
.is-just-c { text-align-last: center; }
.txt-nobr br:not(.br-keep) { display: none; }

.wrap { width: min(100%, calc(var(--wrap) + var(--gutter) * 2)); margin-inline: auto; padding-inline: var(--gutter); }
.sec { padding-block: var(--sec); position: relative; }
.sec--tight { padding-block: calc(var(--sec) * .6); }
.prose > p + p { margin-top: 1lh; }
.lead { font-size: var(--fs-lead); }
.cap { font-size: var(--fs-caption); color: var(--ink-3); line-height: 1.8; }

/* reveal: one soft rise, once */
.anim .rv { opacity: 0; transform: translateY(18px); transition: opacity .8s ease, transform .8s cubic-bezier(.2, .7, .2, 1); }
.anim .rv.is-in { opacity: 1; transform: none; }
.anim .stagger > * { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); }
.anim .stagger.is-in > * { opacity: 1; transform: none; }
.anim .stagger.is-in > *:nth-child(2) { transition-delay: .07s; } .anim .stagger.is-in > *:nth-child(3) { transition-delay: .14s; }
.anim .stagger.is-in > *:nth-child(4) { transition-delay: .21s; } .anim .stagger.is-in > *:nth-child(5) { transition-delay: .28s; }
.anim .stagger.is-in > *:nth-child(6) { transition-delay: .35s; } .anim .stagger.is-in > *:nth-child(7) { transition-delay: .42s; }
.anim .stagger.is-in > *:nth-child(8) { transition-delay: .49s; } .anim .stagger.is-in > *:nth-child(n+9) { transition-delay: .56s; }
/* photos open like a shutter from the left */
.anim .wipe { clip-path: inset(0 100% 0 0 round var(--r)); transition: clip-path 1s cubic-bezier(.7, 0, .2, 1); }
.anim .wipe.is-in { clip-path: inset(0 0 0 0 round var(--r)); }

/* ---------- section head: English display in the main blue, Japanese name right under it ---------- */
.sh { margin-bottom: clamp(36px, 5vw, 64px); }
.sh__no { display: block; font: 500 13px/1 var(--mono); letter-spacing: .12em; color: var(--blue); margin-bottom: 24px; }
.sh__en { font: 600 var(--fs-display)/1.02 var(--en); letter-spacing: -.01em; color: var(--blue); }
.sh__jp { margin-top: 24px; font-size: var(--fs-h4); font-weight: 700; color: var(--ink); line-height: 1.5; letter-spacing: .1em; }
.sh__lead { margin-top: 24px; font-size: var(--fs-lead); }
.sh--c { text-align: center; }
@media (max-width: 760px) { .sh { text-align: center; } .sh__lead { text-align: center; } }
.sh--w .sh__no, .sh--w .sh__en, .sh--w .sh__jp { color: #fff; }
.h2 { font-size: var(--fs-h2); font-weight: 700; color: var(--ink); line-height: 1.45; letter-spacing: .06em; }
.h3 { font-size: var(--fs-h3); font-weight: 700; color: var(--blue); line-height: 1.5; letter-spacing: .06em; }
.h4 { font-size: var(--fs-h4); font-weight: 700; color: var(--ink); line-height: 1.6; }

/* ---------- arrows and buttons ---------- */
.arw { flex: none; display: inline-block; width: 34px; height: 34px; border-radius: 50%; border: 1.5px solid currentColor; position: relative; transition: transform .3s; }
.arw::before { content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 1.5px; background: currentColor; transform: translate(-50%, -50%); }
.arw::after { content: ""; position: absolute; left: 50%; top: 50%; width: 7px; height: 7px; border-top: 1.5px solid currentColor; border-right: 1.5px solid currentColor; transform: translate(-20%, -50%) rotate(45deg); }
.arw--up { transform: rotate(-90deg); }
.arw--out { transform: rotate(-45deg); }
.btn { display: inline-flex; align-items: center; justify-content: space-between; gap: 20px; min-width: min(100%, 300px); min-height: 64px; padding: 12px 16px 12px 28px; border-radius: var(--r-s); background: var(--blue); color: #fff; font-weight: 700; line-height: 1.5; letter-spacing: .08em; transition: background-color .3s; }
.btn:hover { background: var(--blue-d); }
.btn:hover .arw { transform: translateX(4px); }
.btn--cta { background: var(--coral); }
.btn--cta:hover { background: var(--coral-d); }
.btn--white { background: #fff; color: var(--blue); }
.btn--white:hover { background: var(--pale); }
.btn--lg { min-height: 76px; min-width: min(100%, 360px); font-size: 17px; }
.go { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; color: var(--blue); line-height: 1.5; }
.go .arw { width: 30px; height: 30px; }
a:hover > .go .arw, .go:hover .arw { transform: translateX(4px); }
.acts { margin-top: clamp(32px, 4vw, 48px); display: flex; flex-wrap: wrap; gap: 16px; }
.acts--c { justify-content: center; }
@media (max-width: 760px) { .btn { width: 100%; } .acts { flex-direction: column; } }

/* ---------- header: a blue rounded bar floating off the edges; see-through over the MV ---------- */
.hd { position: fixed; z-index: 900; top: var(--hd-gap); left: var(--hd-gap); right: var(--hd-gap); transition: transform .4s cubic-bezier(.3, .7, .2, 1); }
.hd.is-away { transform: translateY(calc(-100% - var(--hd-gap) - 8px)); }
.hd__in { display: flex; align-items: center; gap: clamp(16px, 2.2vw, 36px); height: var(--hd-bar); padding-inline: clamp(16px, 2vw, 28px) 10px; border-radius: 16px; background: var(--blue); color: #fff; transition: background-color .4s; }
.is-mvtop .hd__in { background: transparent; }
.hd__logo { flex: none; margin-right: auto; }
.hd__logo img { height: 40px; width: auto; }
.gn__list { display: flex; gap: clamp(20px, 2.6vw, 44px); }
.gn__list a { display: block; padding: 10px 0; font-weight: 700; font-size: 15px; line-height: 1.5; position: relative; white-space: nowrap; }
.gn__list a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 4px; height: 2px; background: #fff; transform: scaleX(0); transform-origin: left; transition: transform .3s; }
.gn__list a:hover::after, .gn__list a[aria-current]::after { transform: scaleX(1); }
.hd__en { font: 500 14px/1.5 var(--en); letter-spacing: .06em; padding: 10px 0; white-space: nowrap; opacity: .9; }
.hd__en:hover { opacity: 1; text-decoration: underline; text-underline-offset: 6px; }
.hd__cta { flex: none; display: inline-flex; align-items: center; height: 48px; padding-inline: 26px; border-radius: 10px; background: var(--coral); color: #fff; font-weight: 700; font-size: 15px; white-space: nowrap; transition: background-color .3s; }
.hd__cta:hover { background: var(--coral-d); }
.hd__menu { display: none; flex: none; width: 48px; height: 48px; border-radius: 10px; flex-direction: column; align-items: center; justify-content: center; gap: 6px; }
.hd__menu i { display: block; width: 24px; height: 2px; background: #fff; transition: transform .3s, opacity .3s; }
.is-menu .hd__menu i:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.is-menu .hd__menu i:nth-child(2) { opacity: 0; }
.is-menu .hd__menu i:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
@media (max-width: 1080px) { .gn, .hd__en { display: none; } .hd__menu { display: flex; } .hd__in { gap: 6px; padding-right: 4px; } }
@media (max-width: 760px) { .hd__logo img { height: 30px; } .hd__cta { height: 40px; padding-inline: 14px; font-size: 13px; } .hd__in { border-radius: 12px; padding-left: 14px; } }
@media (max-width: 359px) { .hd__logo img { height: 26px; } .hd__cta { padding-inline: 10px; font-size: 12px; } .hd__menu { width: 42px; } }

.drawer { position: fixed; inset: 0; z-index: 850; background: var(--blue-d); color: #fff; visibility: hidden; opacity: 0; transition: opacity .3s, visibility .3s; overflow-y: auto; overscroll-behavior: contain;
  background-image: linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, transparent 1px); background-size: 80px 80px; }
.drawer.is-open { visibility: visible; opacity: 1; }
.drawer__in { width: min(100%, 560px); margin-inline: auto; padding: calc(var(--hd-bar) + var(--hd-gap) * 2 + 16px) 24px calc(40px + var(--spbar)); }
.drawer__list a { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; padding: 8px 4px; font-weight: 700; font-size: 17px; border-bottom: 1px solid rgba(255, 255, 255, .22); }
.drawer__list .arw { width: 28px; height: 28px; }
.drawer__cta { margin-top: 28px; width: 100%; }
.drawer__tel { margin-top: 24px; text-align: center; font-size: 13px; line-height: 1.6; }
.drawer__tel a { display: block; font: 600 30px/1.3 var(--en); letter-spacing: .04em; }
.is-menu { overflow: hidden; }

/* phone bottom bar */
.spbar { display: none; }
@media (max-width: 640px) {
  .spbar { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); position: fixed; z-index: 880; left: 0; right: 0; bottom: 0; padding-bottom: env(safe-area-inset-bottom, 0px); background: var(--blue-d); transition: transform .4s cubic-bezier(.3, .7, .2, 1); }
  .spbar.is-away { transform: translateY(100%); }
  .spbar a { display: flex; align-items: center; justify-content: center; height: var(--spbar); color: #fff; font-weight: 700; font-size: 15px; }
  .spbar__cta { background: var(--coral); }
}

/* ---------- MV: blueprint-blue field, photo panels travelling an orbit, one big catch ---------- */
.mv { position: relative; height: calc(var(--vh, 1svh) * 100); min-height: 600px; max-height: 1120px; color: #fff; overflow: hidden; isolation: isolate;
  background: linear-gradient(100deg, #22337f 0%, var(--blue) 40%, var(--blue-b) 100%); }
.mv__grid { position: absolute; inset: 0; z-index: 0;
  background-image: linear-gradient(rgba(255, 255, 255, .13) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .13) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px, 16px 16px, 16px 16px; background-position: -1px -1px; }
.mv__orbit { position: absolute; inset: 0; z-index: 1; }
.mv__path { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 50; pointer-events: none; }
.mv__path path { fill: none; stroke: rgba(255, 255, 255, .62); stroke-width: 1; stroke-dasharray: 2 6; vector-effect: non-scaling-stroke; }
.mv__card { position: absolute; left: 0; top: 0; width: var(--cw, 220px); aspect-ratio: 4 / 5; border-radius: 10px; overflow: hidden; background: var(--blue-d); will-change: transform; backface-visibility: hidden; opacity: 0; transition: opacity 1s; }
.mv.is-on .mv__card { opacity: 1; }
.mv__card img { width: 100%; height: 100%; object-fit: cover; }
.mv__veil { position: absolute; inset: 0; background: #2c4aa6; opacity: 0; }
.mv__copy { position: absolute; z-index: 200; left: clamp(24px, 5.5vw, 110px); top: 52%; transform: translateY(-50%); }
.mv__en { font: 500 clamp(40px, 5.6vw, 104px)/1.1 var(--en); letter-spacing: -.015em; white-space: nowrap; }
.mv__en .ln:first-child { color: rgba(255, 255, 255, .62); }
.mv__en .ln + .ln { padding-left: .62em; }
.mv__jp { margin-top: clamp(28px, 3.4vw, 56px); font-size: clamp(19px, 1.95vw, 36px); font-weight: 700; line-height: 1.6; letter-spacing: .07em; white-space: nowrap; }
.anim .mv__en .ln, .anim .mv__jp { opacity: 0; transform: translateY(24px); transition: opacity 1s ease, transform 1s cubic-bezier(.2, .7, .2, 1); }
.anim .mv.is-on .mv__en .ln, .anim .mv.is-on .mv__jp { opacity: 1; transform: none; }
.anim .mv.is-on .mv__en .ln + .ln { transition-delay: .15s; }
.anim .mv.is-on .mv__jp { transition-delay: .35s; }
@media (max-width: 760px) {
  .mv { height: calc(var(--vh, 1svh) * 100 - var(--spbar) - env(safe-area-inset-bottom, 0px)); min-height: 520px; background: linear-gradient(180deg, var(--blue-b) 0%, var(--blue) 46%, #22337f 100%); }
  .mv__copy { left: 16px; right: 16px; top: auto; bottom: clamp(28px, 6vh, 60px); transform: none; text-align: center; }
  .mv__en { font-size: clamp(36px, 12.2vw, 60px); }
  .mv__en .ln + .ln { padding-left: 0; }
  .mv__jp { margin-top: 20px; font-size: clamp(18px, 5.4vw, 26px); }
}

/* ---------- TOP: philosophy ---------- */
.phi__grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.phi__ttl { font-size: clamp(21px, 2.7vw, 38px); font-weight: 700; color: var(--ink); line-height: 1.6; letter-spacing: .08em; }
.phi__ttl .ln { white-space: nowrap; }
.phi__txt { margin-top: clamp(24px, 3vw, 40px); }
.ill { mix-blend-mode: multiply; }
.phi__ill { width: min(100%, 460px); margin-inline: auto; }
@media (max-width: 860px) { .phi__grid { grid-template-columns: minmax(0, 1fr); } .phi__ill { order: -1; width: min(72%, 300px); } .phi__ttl { text-align: center; } }

/* ---------- numbers ---------- */
.nums { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--cell); }
.num { background: var(--pale); border-radius: var(--r); padding: clamp(24px, 2.6vw, 40px) 16px clamp(24px, 2.6vw, 36px); text-align: center; display: grid; align-content: start; justify-items: center; }
.num__ico { width: 64px; height: 64px; border-radius: 50%; background: #fff; color: var(--blue); display: grid; place-items: center; }
.num__ico svg { width: 32px; height: 32px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.num__v { margin-top: 20px; color: var(--blue); line-height: 1; white-space: nowrap; }
.num__v b { font: 600 clamp(52px, 6vw, 88px)/1 var(--en); letter-spacing: -.02em; }
.num__v span { font-size: clamp(16px, 1.6vw, 22px); font-weight: 700; margin-left: 4px; }
.num__k { margin-top: 20px; font-size: clamp(16px, 1.5vw, 20px); font-weight: 700; color: var(--ink); line-height: 1.5; }
.num__s { margin-top: 8px; font-size: 13px; line-height: 1.7; color: var(--ink-2); }
.nums__cap { margin-top: 20px; text-align: right; }
@media (max-width: 1100px) { .nums { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .nums { grid-template-columns: minmax(0, 1fr); } .nums__cap { text-align: center; } }

/* ---------- business rows ---------- */
.biz { display: grid; gap: clamp(56px, 8vw, 112px); }
.biz__row { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 80px); align-items: center; }
.biz__row:nth-child(even) .biz__ph { order: 2; }
.biz__ph { border-radius: var(--r); overflow: hidden; aspect-ratio: 3 / 2; }
.biz__ph img { width: 100%; height: 100%; object-fit: cover; }
.biz__no { font: 500 14px/1 var(--mono); letter-spacing: .12em; color: var(--blue); }
.biz__name { margin-top: 16px; font-size: var(--fs-h3); font-weight: 700; color: var(--blue); line-height: 1.4; letter-spacing: .06em; }
.biz__catch { margin-top: 20px; font-size: var(--fs-h4); font-weight: 700; color: var(--ink); line-height: 1.7; }
.biz__txt { margin-top: 16px; }
.biz__row .acts { margin-top: 28px; }
@media (max-width: 860px) { .biz__row { grid-template-columns: minmax(0, 1fr); } .biz__row:nth-child(even) .biz__ph { order: 0; } .biz__no, .biz__name, .biz__catch { text-align: center; display: block; } }

/* ---------- product tiles ---------- */
.plane { background: var(--pale); border-radius: clamp(20px, 3vw, 40px); margin-inline: clamp(8px, 2vw, 32px); }
.plane--blue { background: var(--blue); color: #fff; background-image: linear-gradient(rgba(255, 255, 255, .08) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .08) 1px, transparent 1px); background-size: 80px 80px; }
.pg { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(16px, 2vw, 32px) var(--cell); }
.pg > li { display: grid; }
.pt { display: grid; grid-template-rows: auto 1fr auto; background: #fff; border-radius: var(--r); overflow: hidden; }
.pt__ph { aspect-ratio: 8 / 5; overflow: hidden; }
.pt__ph img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2, .7, .2, 1); }
.pt:hover .pt__ph img { transform: scale(1.05); }
.pt__b { padding: 20px 20px 0; }
.pt__name { font-size: 17px; font-weight: 700; color: var(--ink); line-height: 1.6; }
.pt__txt { margin-top: 8px; font-size: var(--fs-small); line-height: 1.9; }
.pt__go { padding: 16px 20px 20px; display: flex; justify-content: flex-end; }
.pt__go .go { font-size: 14px; }
.pt--all { background: var(--blue); color: #fff; grid-template-rows: 1fr auto; padding: 24px; align-content: space-between; }
.pt--all .pt__name { color: #fff; font-size: var(--fs-h4); }
.pt--all .go { color: #fff; }
@media (max-width: 1080px) { .pg { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 760px) {
  .pg { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .pt { grid-template-columns: 112px minmax(0, 1fr); grid-template-rows: auto auto; align-items: center; border-radius: var(--r-s); }
  .pt__ph { grid-row: 1 / 3; aspect-ratio: auto; height: 100%; min-height: 96px; }
  .pt__b { padding: 14px 14px 0; } .pt__name { font-size: 16px; } .pt__txt { display: none; }
  .pt__go { padding: 6px 14px 12px; justify-content: flex-start; }
  .pg--full .pt { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto 1fr auto; }
  .pg--full .pt__ph { grid-row: auto; aspect-ratio: 8 / 5; height: auto; }
  .pg--full .pt__b { padding: 18px 18px 0; } .pg--full .pt__txt { display: block; } .pg--full .pt__go { padding: 12px 18px 18px; justify-content: flex-end; }
  .pt--all { grid-template-columns: minmax(0, 1fr); padding: 20px; gap: 12px; text-align: center; } .pt--all .pt__go { justify-content: center; padding: 0; }
}

/* ---------- special product pages (brand logos) ---------- */
.bn { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--cell); --bn-n: 6; }
.bn li { flex: 0 0 calc((100% - var(--cell) * (var(--bn-n) - 1)) / var(--bn-n)); min-width: 0; }
.bn a { display: grid; grid-template-rows: 1fr auto; gap: 12px; height: 100%; background: var(--pale); border-radius: var(--r-s); padding: 20px 14px 14px; text-align: center; transition: background-color .3s; }
.bn a:hover { background: #d6e3f7; }
.bn__logo { background: #fff; border-radius: 8px; padding: 6px 10px; }
.bn__logo { display: grid; place-items: center; height: 84px; }
.bn__logo img { max-height: 76px; width: auto; max-width: 100%; object-fit: contain; }
.bn__name { font-size: 13px; font-weight: 700; color: var(--blue); line-height: 1.6; min-height: 3.2em; display: flex; align-items: center; justify-content: center; gap: 8px; }
.bn__name .arw { width: 20px; height: 20px; border-width: 1px; }
@media (max-width: 600px) { .bn__name { gap: 6px; } }
.bn__name .arw::before { width: 8px; } .bn__name .arw::after { width: 5px; height: 5px; }
@media (max-width: 1100px) { .bn { --bn-n: 4; } }
@media (max-width: 900px) { .bn { --bn-n: 3; } }
@media (max-width: 600px) { .bn { --bn-n: 2; --cell: 10px; } .bn a { padding: 10px 10px 10px; gap: 8px; } .bn__logo { height: 64px; } .bn__logo img { max-height: 50px; } }

/* ---------- global network ---------- */
.glb__grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
.glb__map { position: relative; }
.glb__mapin { position: relative; }
.glb__map img { width: 100%; }
.glb__pin { position: absolute; width: 12px; height: 12px; margin: -6px 0 0 -6px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 0 3px #fff; }
.glb__pin b { position: absolute; left: 18px; top: 50%; transform: translateY(-50%); white-space: nowrap; font-size: 12px; font-weight: 700; line-height: 1.7; color: var(--blue); background: #fff; padding: 0 6px; border-radius: 4px; }
.glb__pin--kr b, .glb__pin--tw b { left: auto; right: 18px; }
.glb__pin--jp { left: 44.6%; top: 44.4%; }
.glb__pin--kr { left: 42.3%; top: 41.6%; }
.glb__pin--tw { left: 40.7%; top: 50.2%; }
.glb__pin--au { left: 50.2%; top: 81.6%; }
@media (max-width: 860px) {
  /* phones: zoom to Asia and Oceania so the four marks stand apart */
  .glb__map { overflow: hidden; aspect-ratio: 5 / 4; border-radius: var(--r); background: #fff; }
  .glb__mapin { width: 230%; margin-left: -58%; margin-top: -22%; }
}
.glb__pin::after { content: ""; position: absolute; inset: -4px; border-radius: 50%; border: 1.5px solid var(--coral); opacity: 0; }
.anim .is-in .glb__pin::after { animation: ping 2.6s ease-out infinite; }
.glb__pin:nth-child(3)::after { animation-delay: .5s; } .glb__pin:nth-child(4)::after { animation-delay: 1s; } .glb__pin:nth-child(5)::after { animation-delay: 1.5s; }
@keyframes ping { 0% { transform: scale(1); opacity: .9; } 70%, 100% { transform: scale(3.2); opacity: 0; } }
.glb__list li { display: grid; grid-template-columns: 7.5em minmax(0, 1fr); gap: 4px 16px; padding: 16px 0; border-bottom: 1px solid var(--grid-2); align-items: baseline; }
.glb__list li:first-child { border-top: 1px solid var(--grid-2); }
.glb__c { font-size: 13px; font-weight: 700; color: var(--blue); line-height: 1.6; }
.glb__n { font-weight: 700; color: var(--ink); line-height: 1.6; }
.glb__r { grid-column: 2; font-size: var(--fs-small); line-height: 1.8; text-wrap: balance; }
@media (max-width: 860px) { .glb__grid { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 480px) { .glb__list li { grid-template-columns: minmax(0, 1fr); } .glb__r { grid-column: 1; } }

/* ---------- column cards and list ---------- */
.cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(20px, 2.6vw, 40px); }
.colc { display: grid; grid-template-rows: auto 1fr auto; gap: 0; }
.colc__ph { border-radius: var(--r-s); overflow: hidden; aspect-ratio: 4 / 3; background: var(--pale); }
.colc__ph img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2, .7, .2, 1); }
.colc:hover .colc__ph img { transform: scale(1.05); }
.colc__meta { margin-top: 16px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; font-size: 13px; line-height: 1.5; }
.colc__date { font: 500 13px/1.5 var(--mono); color: var(--ink-3); }
.tag { display: inline-block; padding: 2px 10px; border-radius: 6px; background: var(--pale); color: var(--blue); font-size: 12px; font-weight: 700; line-height: 1.8; }
.colc__ttl { display: block; margin-top: 10px; font-size: 19px; font-weight: 700; color: var(--ink); line-height: 1.65; }
.colc__go { margin-top: 14px; display: flex; justify-content: flex-end; }
.colc__go .go { font-size: 14px; }
@media (max-width: 860px) { .cols { grid-template-columns: minmax(0, 1fr); gap: 32px; } }

.colc__ttl, .crow__ttl { text-wrap: balance; }

/* ---------- contact band + footer ---------- */
.cta { margin-top: 0; padding-block: clamp(56px, 7vw, 104px); background: var(--blue); color: #fff; border-radius: clamp(20px, 3vw, 40px) clamp(20px, 3vw, 40px) 0 0;
  background-image: linear-gradient(rgba(255, 255, 255, .09) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .09) 1px, transparent 1px); background-size: 80px 80px; }
.cta__in { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: clamp(28px, 5vw, 80px); align-items: center; }
.cta__en { font: 600 var(--fs-display)/1.02 var(--en); letter-spacing: -.01em; }
.cta__ttl { margin-top: 24px; font-size: var(--fs-h4); font-weight: 700; letter-spacing: .1em; line-height: 1.5; }
.cta__lead { margin-top: 20px; }
.cta__acts { display: grid; gap: 16px; justify-items: stretch; }
.cta__tel { display: grid; justify-items: center; gap: 2px; padding: 18px 28px; border-radius: var(--r-s); background: var(--blue-d); text-align: center; }
.cta__lbl { font-size: 13px; font-weight: 700; line-height: 1.6; }
.cta__num { font: 600 clamp(30px, 3vw, 40px)/1.2 var(--en); letter-spacing: .03em; white-space: nowrap; }
.cta__note { font-size: 12px; line-height: 1.6; }
@media (max-width: 860px) { .cta__in { grid-template-columns: minmax(0, 1fr); text-align: center; } }
.ft { background: var(--blue-d); color: #fff; padding-block: clamp(48px, 6vw, 80px) 28px; font-size: var(--fs-small); line-height: 1.9; }
.ft__in { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: clamp(32px, 5vw, 80px); }
.ft__logo img { height: 44px; width: auto; }
.ft__adr { margin-top: 28px; display: grid; gap: 16px; }
.ft__adr dt { font-weight: 700; }
.ft__adr a { text-decoration: underline; text-underline-offset: 4px; }
.ft__nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px 24px; align-content: start; }
.ft__wide { grid-column: 1 / -1; }
.ft__h { font-weight: 700; font-size: 15px; padding-bottom: 10px; margin-bottom: 12px; border-bottom: 1px solid rgba(255, 255, 255, .25); }
.ft__nav li a { display: inline-block; padding: 5px 0; }
.ft__nav li a:hover { text-decoration: underline; text-underline-offset: 5px; }
.ft__two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 24px; }
.ft__btm { margin-top: clamp(36px, 5vw, 64px); display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.ft__btm small { font-size: 12px; }
.ft__top { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; font-size: 13px; }
.ft__top .arw { width: 40px; height: 40px; }
@media (max-width: 860px) { .ft__in { grid-template-columns: minmax(0, 1fr); } .ft__logo { display: flex; justify-content: center; } }
@media (max-width: 480px) { .ft__nav, .ft__two { grid-template-columns: minmax(0, 1fr); } .ft__btm { flex-direction: column-reverse; } }

/* ============ lower pages ============ */
/* page head: English display + Japanese title + one-line lead, then a wide photo */
.pgh { padding-top: calc(var(--hd-bar) + var(--hd-gap) * 2 + clamp(32px, 5vw, 72px)); }
.crumb { display: flex; flex-wrap: wrap; gap: 4px 10px; font-size: 12px; line-height: 1.8; color: var(--ink-3); margin-bottom: clamp(20px, 3vw, 36px); }
.crumb li + li::before { content: "/"; margin-right: 10px; color: var(--sky); }
.crumb a { color: var(--blue); font-weight: 700; }
.crumb a:hover { text-decoration: underline; }
.pgh__en { font: 600 var(--fs-display)/1.02 var(--en); letter-spacing: -.01em; color: var(--blue); }
.pgh__ttl { margin-top: 24px; font-size: var(--fs-h3); font-weight: 700; color: var(--ink); line-height: 1.5; letter-spacing: .1em; }
.pgh__lead { margin-top: 20px; font-size: var(--fs-lead); max-width: none; }
.pgh__ph { margin-top: clamp(32px, 5vw, 64px); border-radius: var(--r); overflow: hidden; aspect-ratio: 21 / 8; }
.pgh__ph img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 760px) { .pgh__ph { aspect-ratio: 4 / 3; margin-inline: calc(var(--gutter) * -1 + 8px); } .pgh__en, .pgh__ttl, .pgh__lead { text-align: center; } .crumb { justify-content: center; } }

/* in-page menu */
.pnav { display: flex; flex-wrap: wrap; gap: 8px 28px; margin-top: clamp(28px, 4vw, 48px); }
.pnav a { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; color: var(--blue); padding: 8px 0; line-height: 1.5; }
.pnav a .arw { width: 26px; height: 26px; transform: rotate(90deg); }
@media (max-width: 760px) { .pnav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 16px; } .pnav a { justify-content: space-between; border-bottom: 1px solid var(--grid-2); min-height: 48px; } }

/* text + picture */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 80px); align-items: center; }
.split--top { align-items: start; }
.split__ph { border-radius: var(--r); overflow: hidden; }
.split__ph img { width: 100%; height: 100%; object-fit: cover; }
.split--rev .split__ph { order: 2; }
@media (max-width: 860px) { .split { grid-template-columns: minmax(0, 1fr); } .split__ph, .split--rev .split__ph { order: -1; } }

/* outline list: heading at left, roomy rows at right (no white box) */
.outl { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 2fr); gap: clamp(24px, 5vw, 80px); align-items: start; }
.dl > div { display: grid; grid-template-columns: 9.5em minmax(0, 1fr); gap: 8px 24px; padding: 22px 0; border-bottom: 1px solid var(--grid-2); }
.dl > div:first-child { border-top: 1px solid var(--grid-2); }
.dl dt { font-weight: 700; color: var(--blue); }
.dl dd { color: var(--ink-2); }
@media (max-width: 860px) { .outl { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 600px) { .dl > div { grid-template-columns: minmax(0, 1fr); padding: 18px 0; } }

/* history: the year in mono blue, one line of fact */
.tl { position: relative; }
.tl li { display: grid; grid-template-columns: 5.2em minmax(0, 1fr); gap: 8px 28px; padding: 18px 0; border-bottom: 1px solid var(--grid-2); align-items: baseline; }
.tl li:first-child { border-top: 1px solid var(--grid-2); }
.tl__y { font: 600 24px/1.3 var(--en); color: var(--blue); letter-spacing: .02em; }
.tl__t p + p { margin-top: 4px; }
@media (max-width: 480px) { .tl li { grid-template-columns: minmax(0, 1fr); gap: 2px; } }

/* a white sheet laid on the graph paper (long reading text, forms) */
.sheet { background: #fff; border-radius: var(--r); padding: clamp(24px, 4.5vw, 64px); }
.msg__sign { margin-top: 28px; text-align: right; font-weight: 700; color: var(--ink); }
.msg__sign small { display: block; font-size: 13px; font-weight: 500; color: var(--ink-2); }
.msg__role { font-size: 13px; font-weight: 500; color: var(--ink-2); }
.msg__name { display: block; }
.txt-bal, .btn span { text-wrap: balance; }
/* short lines (headings, data, list items) are split evenly, so no line is left with one or two characters */
.h2, .h3, .h4, .sh__jp, .pgh__ttl, .card__ttl, .dl dd, .ft__adr dd, .art__body li:not(.is-flow) { text-wrap: balance; }

/* tabs: the chosen tab and the zone under it share one colour */
.tabs__list { display: flex; flex-wrap: wrap; gap: 8px; }
.tabs__list button { min-height: 52px; padding: 10px 22px; border-radius: var(--r-s) var(--r-s) 0 0; background: var(--pale); color: var(--blue); font-weight: 700; line-height: 1.5; transition: background-color .3s, color .3s; }
.tabs__list button[aria-selected="true"] { background: var(--blue); color: #fff; }
.tabs__zone { background: var(--blue); border-radius: 0 var(--r) var(--r) var(--r); padding: clamp(12px, 1.6vw, 20px); }
.tabs__panel { background: #fff; border-radius: calc(var(--r) - 6px); padding: clamp(16px, 3vw, 40px); }
.tabs__panel[hidden] { display: none; }
@media (max-width: 760px) { .tabs__list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; margin-bottom: 6px; } .tabs__list button { border-radius: var(--r-s); padding: 10px 8px; font-size: 14px; } .tabs__zone { border-radius: var(--r); } }

/* product table: a table on wide screens, one block per product on phones (never a sideways scroll) */
.ptable { font-size: 15px; line-height: 1.9; }
.ptable th { text-align: left; font-weight: 700; color: #fff; background: var(--blue); padding: 12px 16px; white-space: nowrap; }
.ptable th:first-child { border-radius: 8px 0 0 8px; } .ptable th:last-child { border-radius: 0 8px 8px 0; }
.ptable td { padding: 18px 16px; vertical-align: top; border-bottom: 1px solid var(--grid-2); }
.ptable td:first-child { font-weight: 700; color: var(--ink); min-width: 9em; }
.ptable td img { margin-top: 10px; border-radius: 8px; max-width: 200px; }
.ptable ul { display: grid; gap: 2px; }
.ptable li { padding-left: 1em; text-indent: -1em; }
.ptable li::before { content: "・"; }
.ptable a { color: var(--blue); font-weight: 700; text-decoration: underline; text-underline-offset: 4px; }
@media (max-width: 760px) {
  .ptable, .ptable tbody, .ptable tr, .ptable td { display: block; width: 100%; }
  .ptable thead { display: none; }
  .ptable tr { padding: 18px 0; border-bottom: 1px solid var(--grid-2); }
  .ptable tr:first-child { padding-top: 0; }
  .ptable td { padding: 0; border: 0; }
  .ptable td:first-child { font-size: 17px; color: var(--blue); min-width: 0; }
  .ptable td + td { margin-top: 10px; }
  .ptable td[data-label]::before { content: attr(data-label); display: block; font-size: 12px; font-weight: 700; color: var(--blue); line-height: 1.8; }
}

/* facts in a row of pale planes */
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--cell); }
.cards--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { background: var(--pale); border-radius: var(--r); padding: clamp(22px, 2.6vw, 36px); }
.card--white { background: #fff; }
.card__ttl { font-size: var(--fs-h4); font-weight: 700; color: var(--blue); line-height: 1.6; }
.card__txt { margin-top: 12px; font-size: 15px; }
@media (max-width: 860px) { .cards, .cards--2 { grid-template-columns: minmax(0, 1fr); } }

/* column list rows */
.clist li + li { margin-top: 0; }
.crow { display: grid; grid-template-columns: clamp(140px, 24vw, 300px) minmax(0, 1fr) auto; gap: clamp(16px, 3vw, 40px); align-items: center; padding: clamp(18px, 2.4vw, 28px) 0; border-bottom: 1px solid var(--grid-2); }
.clist li:first-child .crow { border-top: 1px solid var(--grid-2); }
.crow__ph { border-radius: var(--r-s); overflow: hidden; aspect-ratio: 4 / 3; background: var(--pale); }
.crow__ph img { width: 100%; height: 100%; object-fit: cover; }
.crow__ttl { display: block; margin-top: 8px; font-size: 19px; font-weight: 700; color: var(--ink); line-height: 1.65; }
.crow__ex { display: block; margin-top: 6px; font-size: var(--fs-small); line-height: 1.9; }
@media (max-width: 760px) { .crow { grid-template-columns: minmax(0, 1fr); gap: 12px; } .crow > .go { justify-self: end; } }
.filt { display: grid; gap: 12px; margin-bottom: clamp(28px, 4vw, 48px); }
.filt__row { display: grid; grid-template-columns: 7em minmax(0, 1fr); gap: 12px; align-items: start; }
.filt__k { font-weight: 700; color: var(--ink); font-size: 14px; padding-top: 8px; }
.filt__btns { display: flex; flex-wrap: wrap; gap: 8px; }
.filt__btns button { min-height: 40px; padding: 4px 16px; border-radius: 8px; background: #fff; color: var(--blue); font-size: 14px; font-weight: 700; box-shadow: inset 0 0 0 1.5px var(--sky); }
.filt__btns button[aria-pressed="true"] { background: var(--blue); color: #fff; box-shadow: none; }
@media (max-width: 600px) { .filt__row { grid-template-columns: minmax(0, 1fr); gap: 4px; } }

/* article */
.art { width: min(100%, 860px); margin-inline: auto; }
.art__meta { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; }
.art__ttl { margin-top: 16px; font-size: var(--fs-h2); font-weight: 700; color: var(--ink); line-height: 1.5; letter-spacing: .05em; }
.art__eye { margin-top: clamp(24px, 4vw, 40px); border-radius: var(--r); overflow: hidden; aspect-ratio: 16 / 9; }
.art__eye img { width: 100%; height: 100%; object-fit: cover; }
.art__body { margin-top: clamp(32px, 5vw, 56px); }
.art__body > * + * { margin-top: 1.6em; }
.art__body h2 { margin-top: 2.6em; font-size: var(--fs-h3); font-weight: 700; color: var(--blue); line-height: 1.5; letter-spacing: .05em; }
.art__body h3 { margin-top: 2.2em; font-size: var(--fs-h4); font-weight: 700; color: var(--ink); line-height: 1.6; }
.art__body h4 { margin-top: 2em; font-size: 17px; font-weight: 700; color: var(--blue); line-height: 1.6; }
.art__body ul, .art__body ol { display: grid; gap: 6px; padding: 20px 24px; background: var(--pale-2); border-radius: var(--r-s); }
.art__body ul li { padding-left: 1.1em; text-indent: -1.1em; }
.art__body ul li::before { content: "・"; color: var(--blue); font-weight: 700; }
.art__body ol { counter-reset: n; }
.art__body ol li { counter-increment: n; padding-left: 2em; text-indent: -2em; }
.art__body ol li::before { content: counter(n) "."; display: inline-block; width: 2em; text-indent: 0; font: 600 16px/1 var(--en); color: var(--blue); }
.art__body a { color: var(--blue); font-weight: 700; text-decoration: underline; text-underline-offset: 4px; }
.art__body figure img { border-radius: var(--r-s); width: 100%; }
.art__body figcaption { margin-top: 8px; font-size: 12px; color: var(--ink-3); line-height: 1.8; }
.art__body table { font-size: 15px; line-height: 1.8; background: #fff; }
.art__body th { background: var(--blue); color: #fff; padding: 10px 14px; text-align: left; font-weight: 700; }
.art__body td { padding: 12px 14px; border-bottom: 1px solid var(--grid-2); vertical-align: top; }
.art__body td:first-child { font-weight: 700; color: var(--ink); }
@media (max-width: 760px) {
  .art__body table, .art__body tbody, .art__body tr, .art__body td { display: block; width: 100%; }
  .art__body thead { display: none; }
  .art__body tr { padding: 14px 0; border-bottom: 1px solid var(--grid-2); }
  .art__body td { padding: 0; border: 0; }
  .art__body td + td { margin-top: 6px; }
  .art__body td[data-label]::before { content: attr(data-label); display: block; font-size: 12px; font-weight: 700; color: var(--blue); }
}
.art__back { margin-top: clamp(40px, 6vw, 72px); display: flex; justify-content: center; }

/* form */
.form { display: grid; gap: 24px; }
.form label, .form .form__k { display: block; font-weight: 700; color: var(--ink); line-height: 1.6; margin-bottom: 8px; }
.req { display: inline-block; margin-left: 10px; padding: 0 8px; border-radius: 4px; background: var(--coral); color: #fff; font-size: 12px; font-weight: 700; line-height: 1.8; vertical-align: 1px; }
.form input[type="text"], .form input[type="email"], .form input[type="tel"], .form textarea, .form select { width: 100%; min-height: 54px; padding: 12px 16px; border: 1.5px solid var(--sky); border-radius: 10px; background: #fff; font: inherit; font-size: 16px; color: var(--ink); line-height: 1.6; }
.form textarea { min-height: 200px; resize: vertical; }
.form input:focus, .form textarea:focus { outline: 3px solid var(--blue); outline-offset: 1px; border-color: var(--blue); }
.form__agree { display: flex; align-items: flex-start; gap: 12px; }
.form__agree input { width: 22px; height: 22px; margin-top: 5px; accent-color: var(--blue); flex: none; }
.form__agree label { margin: 0; font-weight: 500; }
.form__agree a { color: var(--blue); font-weight: 700; text-decoration: underline; text-underline-offset: 4px; }
.form__send { display: flex; justify-content: center; margin-top: 8px; }
.form__send .btn { cursor: pointer; }

/* the contact page already has the phone number and the form: no second contact band there */
.pg-contact .cta { display: none; }
.pg-contact .ft { margin-top: var(--sec); border-radius: clamp(20px, 3vw, 40px) clamp(20px, 3vw, 40px) 0 0; }

/* still mode for screenshots / reduced motion */
.is-qa .hd, .is-qa .spbar { transition: none; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }