:root {
  --paper: #e9e6de;
  --paper-light: #f5f3ed;
  --ink: #171916;
  --muted: #72736d;
  --line: rgba(23, 25, 22, .18);
  --green: #0b8f48;
  --red: #d64235;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: "Noto Sans KR", "Apple SD Gothic Neo", Arial, sans-serif; font-size: 16px; word-break: keep-all; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
.site-header { position: fixed; inset: 0 0 auto; z-index: 50; height: 88px; display: flex; align-items: center; justify-content: space-between; padding: 0 3.5vw; border-bottom: 1px solid rgba(255,255,255,.16); color: #fff; transition: .3s ease; }
.site-header.scrolled { height: 72px; background: rgba(233,230,222,.94); backdrop-filter: blur(14px); color: var(--ink); border-color: var(--line); }
.brand { width: 82px; height: 40px; display: flex; align-items: center; overflow: hidden; }
.brand img { width: 80px; filter: invert(1); transition: .3s; }
.site-header.scrolled .brand img { filter: none; }
.nav { display: flex; align-items: center; gap: clamp(22px, 3vw, 54px); font-size: 13px; font-weight: 600; }
.nav a { position: relative; }
.nav a::after { content: ""; position: absolute; left: 0; bottom: -8px; width: 0; height: 2px; background: var(--red); transition: width .25s; }
.nav a:hover::after { width: 100%; }
.lang { border: 0; border-left: 1px solid currentColor; background: none; padding-left: 24px; cursor: pointer; font-size: 11px; }
.lang span { opacity: .45; }
.menu-button { display: none; }

.hero { min-height: 100vh; position: relative; overflow: hidden; padding: 180px 7vw 64px; display: flex; align-items: flex-end; justify-content: space-between; color: #f4f2ea; background: #18352f; }
.hero::before { content: ""; position: absolute; width: 58vw; height: 58vw; right: -10vw; top: -18vw; border: 1px solid rgba(255,255,255,.12); border-radius: 50%; }
.hero::after { content: ""; position: absolute; width: 34vw; height: 34vw; right: 8vw; top: 4vw; border: 1px solid rgba(255,255,255,.08); border-radius: 50%; }
.hero-noise { position: absolute; inset: 0; opacity: .16; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.28'/%3E%3C/svg%3E"); mix-blend-mode: soft-light; }
.hero-copy, .hero-aside, .scroll { position: relative; z-index: 2; }
.eyebrow, .kicker { margin: 0 0 26px; font-size: 11px; font-weight: 700; letter-spacing: .18em; }
.eyebrow { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.66); }
.eyebrow span { width: 7px; height: 7px; background: var(--green); border-radius: 50%; }
.hero h1 { margin: 0; font-size: clamp(52px, 7.5vw, 122px); line-height: .98; letter-spacing: -.055em; font-weight: 700; }
.hero h1 em { color: rgba(255,255,255,.72); font-style: normal; }
.hero-description { margin: 38px 0 0; color: rgba(255,255,255,.7); font-size: 15px; line-height: 1.85; }
.hero-aside { align-self: center; margin-top: 150px; padding-left: 22px; border-left: 1px solid rgba(255,255,255,.34); font-size: 11px; line-height: 1.8; letter-spacing: .08em; }
.hero-aside span { color: var(--red); font-weight: 700; }
.hero-aside p { margin: 16px 0 0; }
.scroll { position: absolute; right: 3.5vw; bottom: 44px; display: flex; align-items: center; gap: 12px; font-size: 9px; letter-spacing: .2em; transform: rotate(90deg); transform-origin: right; }
.scroll i { display: block; width: 64px; height: 1px; background: rgba(255,255,255,.45); }

.section { position: relative; padding: 150px 7vw; }
.section-index { position: absolute; top: 54px; left: 3.5vw; font: 600 10px/1 Arial; }
.section-index::before { content: ""; display: inline-block; width: 22px; height: 1px; margin-right: 8px; vertical-align: middle; background: var(--red); }
.intro { min-height: 820px; display: grid; grid-template-columns: 1fr 1fr; gap: 10vw; background: var(--paper-light); }
.kicker { color: var(--green); }
.intro h2, .section-heading h2, .featured h2, .contact h2 { margin: 0; font-size: clamp(38px, 4.7vw, 72px); line-height: 1.12; letter-spacing: -.045em; }
.intro-copy > p:not(.kicker) { max-width: 490px; margin: 44px 0 34px; color: var(--muted); font-size: 15px; line-height: 1.9; }
.text-link { display: inline-flex; gap: 46px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--ink); font-size: 13px; font-weight: 700; }
.text-link span { color: var(--red); }
.company-facts { margin: 50px 0 0; border-top: 1px solid var(--line); }
.company-facts div { display: grid; grid-template-columns: 130px 1fr; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 11px; }
.company-facts dt { color: var(--muted); }
.company-facts dd { margin: 0; font-weight: 600; }
.intro-grid { display: grid; grid-template-columns: repeat(2, 1fr); align-self: end; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.intro-grid a { min-height: 200px; padding: 22px; display: flex; flex-direction: column; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background .25s, color .25s; }
.intro-grid a:hover { background: var(--ink); color: #fff; }
.intro-grid small { color: var(--red); font: 600 10px Arial; }
.intro-grid strong { margin-top: auto; font-size: 20px; }
.intro-grid span { margin-top: 6px; color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .1em; }
.company-image { position: relative; min-height: 520px; align-self: stretch; overflow: hidden; background: #22241f; }
.company-image img { width: 100%; height: 100%; display: block; object-fit: cover; filter: saturate(.62) contrast(1.04); transition: transform .7s ease; }
.company-image:hover img { transform: scale(1.025); }
.company-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(20,22,19,.72)); }
.company-image span { position: absolute; z-index: 1; right: 28px; bottom: 25px; left: 28px; display: flex; justify-content: space-between; color: #fff; font-size: 11px; font-weight: 700; letter-spacing: .14em; }
.company-image span i { color: var(--red); font-style: normal; }

.chairman { min-height: 850px; display: grid; grid-template-columns: .8fr 1.2fr; gap: 9vw; align-items: center; overflow: hidden; background: #22241f; color: #f4f2ea; }
.chairman-visual { position: relative; aspect-ratio: 4/5; margin: 0; overflow: hidden; border: 1px solid rgba(255,255,255,.14); background: #ececed; }
.chairman-visual img { width: 100%; height: 100%; display: block; object-fit: cover; object-position: center top; filter: saturate(.82) contrast(1.02); }
.chairman-copy h2 { margin: 0; font-size: clamp(36px, 4.4vw, 68px); line-height: 1.14; letter-spacing: -.045em; }
.chairman-text { max-width: 610px; margin-top: 46px; color: rgba(255,255,255,.58); font-size: 15px; line-height: 1.9; }
.chairman-text p { margin: 0 0 15px; }
.chairman-sign { margin-top: 38px; display: flex; align-items: baseline; gap: 18px; }
.chairman-sign span { color: rgba(255,255,255,.5); font-size: 10px; }
.chairman-sign strong { font-size: 22px; letter-spacing: .16em; }

.about-detail { background: var(--paper-light); }
.about-heading { max-width: 1200px; margin-bottom: 80px; }
.about-heading h1 { margin: 0; font-size: clamp(44px, 6vw, 88px); line-height: 1.08; letter-spacing: -.055em; }
.about-heading > p:last-child { max-width: none; margin: 32px 0 0; color: var(--muted); font-size: 16px; line-height: 1.85; white-space: nowrap; }
.about-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.about-tab { position: relative; min-height: 130px; display: grid; grid-template-columns: 34px 1fr; align-content: center; padding: 22px; border: 1px solid var(--line); background: rgba(255,255,255,.32); color: var(--ink); text-align: left; cursor: pointer; transition: background .25s, color .25s, border-color .25s, transform .25s; }
.about-tab:hover { border-color: var(--ink); transform: translateY(-2px); }
.about-tab > span { color: var(--red); font: 600 11px Arial; }
.about-tab strong { font-size: clamp(16px, 1.5vw, 22px); }
.about-tab small { grid-column: 2; margin-top: 7px; color: var(--muted); font-size: 10px; letter-spacing: .12em; }
.about-tab.active { border-color: #18352f; background: #18352f; color: #fff; }
.about-tab.active small { color: rgba(255,255,255,.62); }
.about-tab:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }
.about-panel { padding-top: 95px; }
.about-panel[hidden] { display: none; }
.about-panel.active { animation: panelIn .45s ease; }
.overview-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 10vw; align-items: start; }
.overview-layout h3 { margin: 0; font-size: clamp(36px, 4.4vw, 66px); line-height: 1.12; letter-spacing: -.05em; }
.overview-description { margin: 36px 0 0; color: var(--muted); font-size: 16px; line-height: 1.9; }
.overview-image { margin: 0; aspect-ratio: 4/3; overflow: hidden; background: #deddd7; }
.overview-image img { width: 100%; height: 100%; display: block; object-fit: cover; filter: saturate(.65) contrast(1.03); }
.overview-facts { margin: 70px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line); }
.overview-facts div { min-height: 115px; padding: 24px; border-right: 1px solid var(--line); }
.overview-facts div:last-child { border-right: 0; }
.overview-facts dt { color: var(--muted); font-size: 10px; }
.overview-facts dd { margin: 18px 0 0; font-size: 13px; font-weight: 700; line-height: 1.55; }
.message-panel { margin-top: 0; padding: 70px 0; grid-template-columns: 1fr 1fr; gap: 6vw; align-items: center; background: transparent; color: var(--ink); }
.message-panel.active { display: grid; }
.message-panel .chairman-visual { width: 100%; max-width: 430px; margin: 0 auto; border: 0; }
.message-panel .chairman-text { color: var(--muted); }
.message-panel .chairman-sign span { color: var(--muted); }
.pending-panel { min-height: 420px; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px solid var(--line); text-align: center; }
.pending-panel span { color: var(--green); font-size: 9px; letter-spacing: .16em; }
.pending-panel h3 { margin: 18px 0 12px; font-size: clamp(34px, 4vw, 56px); letter-spacing: -.04em; }
.pending-panel p { margin: 0; color: var(--muted); font-size: 12px; }
.organization-heading { text-align: center; }
.organization-heading > span { color: var(--green); font-size: 9px; letter-spacing: .16em; }
.organization-heading h3 { margin: 18px 0 65px; font-size: clamp(32px, 4vw, 54px); line-height: 1.2; letter-spacing: -.045em; }
.org-chart { max-width: 850px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; }
.org-level { min-width: 260px; min-height: 130px; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px solid var(--line); background: var(--paper-light); text-align: center; }
.org-level small { color: var(--green); font-size: 8px; letter-spacing: .13em; }
.org-level strong { margin-top: 11px; font-size: 22px; }
.org-level span { margin-top: 6px; color: var(--muted); font-size: 11px; }
.org-chairman { border-color: var(--ink); background: var(--ink); color: #fff; }
.org-chairman span { color: rgba(255,255,255,.58); }
.org-ceo { min-width: 260px; border-color: var(--green); }
.org-connector { width: 1px; height: 42px; background: var(--line); }
.org-branch { width: 50%; height: 42px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); border-right: 1px solid var(--line); }
.org-teams { width: 72%; display: grid; grid-template-columns: 1fr 1fr; gap: 10%; }
.org-teams .org-level { min-width: 0; }
.subpage .site-header { background: rgba(245,243,237,.94); backdrop-filter: blur(14px); color: var(--ink); border-color: var(--line); }
.subpage .site-header .brand img { filter: none; }
.subpage .about-detail { padding-top: 190px; min-height: calc(100vh - 200px); }
.subpage .business-detail, .subpage .business { padding-top: 190px; min-height: calc(100vh - 200px); }

.portfolio-page, .contact-page { padding-top: 190px; min-height: calc(100vh - 200px); background: var(--paper-light); }
.portfolio-heading { max-width: 900px; }
.portfolio-heading h1, .contact-page-heading h1 { margin: 0; font-size: clamp(44px, 6vw, 88px); line-height: 1.08; letter-spacing: -.055em; }
.portfolio-heading > p:last-child, .contact-page-heading > p:last-child { max-width: 650px; margin: 30px 0 0; color: var(--muted); font-size: 16px; line-height: 1.85; }
.portfolio-tabs { margin-top: 90px; display: flex; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.portfolio-tab { flex: 1; min-height: 72px; padding: 0 18px; border: 0; border-right: 1px solid var(--line); background: transparent; color: var(--ink); cursor: pointer; font-weight: 650; }
.portfolio-tab:last-child { border-right: 0; }
.portfolio-tab.active { background: #18352f; color: #fff; }
.portfolio-grid { margin-top: 70px; display: grid; grid-template-columns: 1fr 1fr; gap: 80px 28px; }
.project-card[hidden] { display: none; }
.project-placeholder { position: relative; aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center; overflow: hidden; border: 1px solid var(--line); background: linear-gradient(135deg, #dedbd2, #eeece6); }
.project-placeholder::before { content: ""; width: 38%; aspect-ratio: 1; border: 1px solid rgba(23,25,22,.12); border-radius: 50%; }
.project-placeholder span { position: absolute; color: rgba(23,25,22,.28); font: 600 9px/1.5 Arial; letter-spacing: .14em; text-align: center; }
.project-image { aspect-ratio: 16/9; overflow: hidden; border: 1px solid var(--line); background: #dedbd2; }
.project-image img { width: 100%; height: 100%; display: block; object-fit: cover; transition: transform .45s ease; }
.project-card:hover .project-image img { transform: scale(1.015); }
.project-slider { position: relative; aspect-ratio: 16/9; overflow: hidden; border: 1px solid var(--line); background: #171916; touch-action: pan-y; }
.interior-stage-tabs { display: flex; gap: 8px; margin-bottom: 10px; }
.interior-stage-tabs button { flex: 1; min-height: 42px; border: 1px solid var(--line); background: transparent; color: var(--muted); font: 600 10px/1 Arial, sans-serif; letter-spacing: .08em; cursor: pointer; transition: border-color .2s, background .2s, color .2s; }
.interior-stage-tabs button:hover { border-color: var(--ink); color: var(--ink); }
.interior-stage-tabs button.active { border-color: #18352f; background: #18352f; color: #fff; }
.interior-project > div:last-child { padding-right: 0; }
.interior-project > .interior-stage-tabs,
.interior-project .slider-prev,
.interior-project .slider-next,
.interior-project .slider-count { display: none; }
.lightbox-stage-tabs { display: flex; gap: 7px; margin-bottom: 20px; }
.lightbox-stage-tabs[hidden] { display: none; }
.lightbox-stage-tabs button { flex: 1; min-height: 36px; padding: 0 8px; border: 1px solid var(--line); background: transparent; color: var(--muted); font: 600 9px/1 Arial, sans-serif; letter-spacing: .07em; cursor: pointer; }
.lightbox-stage-tabs button.active { border-color: #18352f; background: #18352f; color: #fff; }
.project-slides { height: 100%; display: flex; transition: transform .45s cubic-bezier(.22,.61,.36,1); }
.project-slides img { min-width: 100%; width: 100%; height: 100%; display: block; object-fit: cover; background: #171916; cursor: zoom-in; }
.slider-prev, .slider-next { position: absolute; top: 50%; z-index: 2; width: 44px; height: 44px; padding: 0; border: 1px solid rgba(255,255,255,.45); border-radius: 50%; background: rgba(23,25,22,.68); color: #fff; cursor: pointer; transform: translateY(-50%); transition: background .2s, border-color .2s; }
.slider-prev { left: 16px; }
.slider-next { right: 16px; }
.slider-prev:hover, .slider-next:hover { border-color: #fff; background: var(--ink); }
.slider-prev:focus-visible, .slider-next:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; }
.slider-count { position: absolute; z-index: 2; right: 16px; bottom: 14px; padding: 6px 10px; background: rgba(23,25,22,.72); color: #fff; font: 600 10px Arial; letter-spacing: .08em; }
.portfolio-lightbox { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 10vh 8vw; background: rgba(13,14,12,.94); }
.portfolio-lightbox[hidden] { display: none; }
.lightbox-scroll { width: min(1100px, 100%); height: min(680px, 78vh); display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(320px, .8fr); overflow: hidden; background: var(--paper-light); }
.lightbox-visual { position: relative; min-width: 0; min-height: 0; overflow: hidden; background: #111; }
.lightbox-image { width: 100%; height: 100%; min-height: 0; display: block; object-fit: contain; }
.lightbox-project-info { min-width: 0; padding: clamp(28px, 3vw, 46px); color: var(--ink); align-self: center; }
.lightbox-project-info[hidden] { display: none; }
.lightbox-project-info small { color: var(--green); font-size: 11px; letter-spacing: .12em; }
.lightbox-project-info h2 { margin: 10px 0 8px; font-size: clamp(25px, 2.7vw, 38px); line-height: 1.15; letter-spacing: -.035em; }
.lightbox-location { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.5; }
.lightbox-project-info h3 { margin: 28px 0 13px; padding-top: 20px; border-top: 1px solid var(--ink); font-size: 17px; }
.lightbox-project-info ul { margin: 0; padding-left: 20px; font-size: 13px; line-height: 1.55; }
.lightbox-project-info li + li { margin-top: 5px; }
.lightbox-close, .lightbox-prev, .lightbox-next { position: absolute; z-index: 2; border: 1px solid rgba(255,255,255,.72); background: rgba(23,25,22,.58); color: #fff; cursor: pointer; }
.lightbox-close { top: 24px; right: 28px; width: 44px; height: 44px; font-size: 22px; }
.lightbox-prev, .lightbox-next { top: 50%; width: 58px; height: 58px; border-radius: 50%; font: 300 44px/1 Arial; transform: translateY(-50%); }
.lightbox-prev { left: 22px; }
.lightbox-next { right: 22px; }
.lightbox-close:hover, .lightbox-prev:hover, .lightbox-next:hover { border-color: #fff; background: var(--ink); }
.lightbox-count { position: absolute; right: 50%; bottom: 24px; color: #fff; font: 600 11px Arial; letter-spacing: .1em; transform: translateX(50%); }
.project-card > div:last-child { position: relative; padding: 20px 0 0; }
.project-card small { color: var(--green); font-size: 10px; letter-spacing: .1em; }
.project-card h2 { margin: 10px 0 0; font-size: 21px; }
.project-card p { position: absolute; top: 20px; right: 0; margin: 0; color: var(--muted); font-size: 9px; }
.project-details { margin: 15px 0 0; padding: 14px 0 0; list-style: none; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; line-height: 1.65; }
.project-details li + li { margin-top: 4px; }
.project-card .project-location { position: static; max-width: calc(100% - 44px); margin-top: 12px; color: var(--muted); font-size: 13px; line-height: 1.55; }

.contact-page-heading { text-align: center; }
.contact-page { padding-top: 138px; padding-bottom: 90px; }
.contact-page-heading h1 { font-size: clamp(38px, 4.2vw, 64px); line-height: 1.08; }
.contact-page-heading > p:last-child { margin-left: auto; margin-right: auto; }
.contact-page-heading > p:last-child { margin-top: 20px; font-size: 14px; line-height: 1.7; }
.contact-layout { max-width: 1540px; margin: 52px auto 0; display: grid; grid-template-columns: minmax(300px, .62fr) minmax(0, 1.38fr); gap: 28px; align-items: stretch; }
.contact-sidebar { height: 100%; display: grid; grid-template-rows: minmax(255px, .76fr) minmax(345px, 1.24fr); gap: 22px; }
.contact-card, .location-card, .inquiry-form { padding: 30px; border: 1px solid rgba(23, 25, 22, .16); background: #fff; }
.location-card { min-height: 0; display: flex; flex-direction: column; }
.inquiry-form { height: 100%; padding: 34px 38px; }
.contact-card h2, .location-card h2, .form-heading h2 { margin: 0; font-size: 25px; letter-spacing: -.035em; }
.contact-card dl { margin: 22px 0 0; padding-top: 12px; border-top: 1px solid var(--line); }
.contact-card dl div { padding: 9px 0; }
.contact-card dt { margin-bottom: 5px; color: var(--muted); font: 600 8px Arial; letter-spacing: .12em; }
.contact-card dd { margin: 0; font-size: 15px; line-height: 1.65; }
.location-card .map-placeholder { min-height: 215px; flex: 1; margin-top: 20px; display: flex; flex-direction: column; align-items: center; justify-content: center; background: #d8d6cf; color: var(--ink); }
.location-card .map-placeholder iframe { width: 100%; height: 100%; min-height: 215px; display: block; border: 0; }
.map-placeholder span { color: var(--red); font-size: 9px; letter-spacing: .16em; }
.map-placeholder strong { margin-top: 9px; font-size: 30px; letter-spacing: .05em; }
.map-placeholder small { margin-top: 7px; color: var(--muted); }
.location-card > p:last-child { margin: 14px 0 0; color: var(--muted); font-size: 11px; }
.location-card > p:last-child a:hover { color: var(--green); }
.form-heading { padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.inquiry-form fieldset { margin: 22px 0; padding: 0; border: 0; }
.inquiry-form legend, .inquiry-form label { font-size: 13px; font-weight: 650; }
.inquiry-form em { color: var(--red); font-style: normal; }
.inquiry-types { margin-top: 13px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.inquiry-types label input { position: absolute; opacity: 0; }
.inquiry-types span { min-height: 42px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--line); color: var(--muted); cursor: pointer; text-align: center; }
.inquiry-types input:checked + span { border-color: #18352f; background: #18352f; color: #fff; }
.form-grid { width: 100%; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 17px 20px; align-items: start; }
.form-grid label, .full-field { width: 100%; min-width: 0; display: grid; grid-template-columns: max-content minmax(0, 1fr); column-gap: 4px; row-gap: 9px; align-items: baseline; }
.form-grid label > em, .full-field > em { justify-self: start; }
.form-grid label > input, .form-grid label > select, .full-field > textarea { grid-column: 1 / -1; }
.inquiry-form input[type="text"], .inquiry-form input[type="tel"], .inquiry-form input[type="email"], .inquiry-form select, .inquiry-form textarea { width: 100%; border: 1px solid var(--line); border-radius: 0; background: #fafafa; color: var(--ink); font: inherit; font-size: 14px; outline: none; }
.inquiry-form input, .inquiry-form select { height: 48px; padding: 0 14px; }
.inquiry-form textarea { height: 118px; padding: 14px; resize: vertical; line-height: 1.6; }
.inquiry-form input:focus, .inquiry-form select:focus, .inquiry-form textarea:focus { border-color: var(--green); }
.full-field { width: 100%; margin-top: 18px; }
.file-upload { width: 100%; margin-top: 18px; display: block; }
.file-title { display: block; margin-bottom: 9px; }
.file-title small { margin-left: 5px; color: var(--muted); font-weight: 400; }
.file-upload > input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.file-drop { width: 100%; min-height: 48px; display: flex; align-items: center; justify-content: center; gap: 11px; border: 1px dashed rgba(23,25,22,.32); background: #fafafa; color: var(--muted); cursor: pointer; transition: border-color .2s, background .2s; }
.file-drop:hover, .file-drop.dragging { border-color: var(--green); background: rgba(11,143,72,.035); }
.file-drop > strong { color: var(--green); font-size: 20px; font-weight: 400; }
.file-label { font-size: 11px; font-weight: 500; }
.privacy-check { margin-top: 18px; padding: 13px 16px; display: flex; align-items: flex-start; gap: 12px; border: 1px solid var(--line); }
.privacy-check input { width: 18px; height: 18px; flex: 0 0 auto; }
.privacy-check span { line-height: 1.5; }
.privacy-check small { display: block; color: var(--muted); font-weight: 400; }
.submit-inquiry { width: 100%; height: 52px; margin-top: 18px; display: flex; justify-content: center; align-items: center; gap: 30px; border: 0; background: #18352f; color: #fff; cursor: pointer; font-weight: 700; letter-spacing: .04em; }
.submit-inquiry:hover { background: var(--green); }
.form-notice { min-height: 18px; margin: 12px 0 0; color: var(--green); font-size: 11px; text-align: center; }

.business { background: var(--paper); }
.section-heading { display: grid; grid-template-columns: 1fr 2fr; align-items: start; margin-bottom: 90px; }
.section-heading h2 { grid-column: 2; }
.business-list { border-top: 1px solid var(--ink); }
.business-item { min-height: 210px; display: grid; grid-template-columns: 1fr 1.2fr .3fr; align-items: center; gap: 40px; padding: 34px 0; border-bottom: 1px solid var(--line); transition: padding .3s; }
.business-item:hover { padding-left: 18px; }
.business-title { display: grid; grid-template-columns: 50px 1fr; align-items: baseline; }
.business-title span { color: var(--red); font: 600 10px Arial; }
.business-title h3 { margin: 0; font-size: clamp(26px, 3vw, 46px); letter-spacing: -.04em; }
.business-title small { grid-column: 2; margin-top: 8px; color: var(--muted); font-size: 10px; letter-spacing: .1em; }
.business-item > p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.business-mark { justify-self: end; font-size: 54px; color: rgba(23,25,22,.16); transition: color .3s, transform .3s; }
.business-item:hover .business-mark { color: var(--green); transform: rotate(8deg); }
.business-intro { max-width: 670px; margin: -35px 0 85px 33.33%; color: var(--muted); font-size: 15px; line-height: 1.9; }
.business-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.business-tab { position: relative; min-height: 150px; display: grid; grid-template-columns: 38px 1fr; align-content: center; padding: 25px 28px; border: 1px solid var(--line); background: rgba(255,255,255,.32); color: var(--ink); text-align: left; cursor: pointer; transition: background .25s, color .25s, border-color .25s, transform .25s; }
.business-tab:hover { border-color: var(--ink); transform: translateY(-2px); }
.business-tab > span { color: var(--red); font: 600 11px Arial; }
.business-tab strong { font-size: clamp(17px, 1.7vw, 25px); letter-spacing: -.03em; }
.business-tab small { grid-column: 2; margin-top: 8px; color: var(--muted); font-size: 10px; letter-spacing: .12em; }
.business-tab.active { border-color: #18352f; background: #18352f; color: #fff; }
.business-tab.active small { color: rgba(255,255,255,.62); }
.business-tab:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }
.business-panel { padding-top: 100px; }
.business-panel[hidden] { display: none; }
.business-panel.active { animation: panelIn .45s ease; }
@keyframes panelIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.panel-overview { display: grid; grid-template-columns: 1.15fr .85fr; gap: 10vw; align-items: start; }
.panel-overview h3 { margin: 0; font-size: clamp(36px, 4.5vw, 68px); line-height: 1.12; letter-spacing: -.05em; }
.panel-overview > div:last-child > p { margin: 6px 0 32px; color: var(--muted); font-size: 16px; line-height: 1.9; }
.panel-overview ul { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.panel-overview li { padding: 13px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.panel-overview li::before { content: "+"; margin-right: 12px; color: var(--green); }
.business-visual { width: 100%; aspect-ratio: 16 / 7; margin: 85px 0 0; overflow: hidden; background: var(--ink); }
.business-visual img { width: 100%; height: 100%; display: block; object-fit: cover; }
.business-process { margin: 85px 0 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; list-style: none; }
.business-process li { position: relative; min-height: 154px; display: flex; flex-direction: column; justify-content: center; gap: 9px; padding: 22px 20px; border: 1px solid var(--line); background: var(--paper-light); }
.business-process li:not(:last-child)::after { content: "→"; position: absolute; z-index: 1; top: 50%; right: -16px; width: 21px; color: var(--red); background: var(--paper); font: 16px Arial; text-align: center; transform: translateY(-50%); }
.business-process span { color: var(--red); font: 600 10px Arial; letter-spacing: .08em; }
.business-process strong { font-size: 16px; }
.business-process small { color: var(--muted); font-size: 13px; line-height: 1.55; }
.panel-statement { margin-top: 100px; padding: 80px 7vw; background: var(--paper-light); }
.panel-statement small { color: var(--green); font-size: 9px; letter-spacing: .14em; }
.panel-statement strong { max-width: 780px; display: block; margin-top: 24px; font-size: clamp(28px, 3.5vw, 52px); line-height: 1.18; letter-spacing: -.04em; }
.panel-statement p { max-width: 560px; margin: 26px 0 0; color: var(--muted); font-size: 15px; line-height: 1.8; }
.network { margin-top: 100px; padding-top: 80px; border-top: 1px solid var(--ink); }
.network-heading { display: grid; grid-template-columns: .75fr 1.25fr; column-gap: 8vw; margin-bottom: 70px; }
.network-heading .kicker { grid-column: 1; }
.network-heading h3 { grid-column: 2; grid-row: 1 / span 2; margin: 0; font-size: clamp(34px, 4vw, 60px); line-height: 1.12; letter-spacing: -.045em; }
.network-heading > p:last-child { grid-column: 2; max-width: 520px; margin: 28px 0 0; color: var(--muted); font-size: 16px; line-height: 1.8; }
.network-panels { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.network-panel { min-width: 0; padding: 34px; background: var(--paper-light); }
.panel-label { display: grid; grid-template-columns: 36px 1fr; align-items: baseline; }
.panel-label > span { color: var(--red); font: 600 10px Arial; }
.panel-label strong { font-size: 18px; }
.panel-label small { grid-column: 2; margin-top: 5px; color: var(--muted); font-size: 12px; letter-spacing: .13em; }
.network-panel > p { margin: 30px 0 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.cluster-map { position: relative; width: min(100%, 460px); aspect-ratio: 1; margin: 38px auto 12px; border: 1px dashed rgba(23,25,22,.24); border-radius: 50%; }
.cluster-core, .cluster-node { position: absolute; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; border-radius: 50%; background: var(--paper-light); }
.cluster-core { inset: 33%; z-index: 2; color: #fff; background: var(--ink); }
.cluster-core strong { font-size: 16px; letter-spacing: .08em; }
.cluster-core span, .cluster-node span, .global-map span { margin-top: 5px; color: var(--muted); font-size: 11px; }
.cluster-core span { color: rgba(255,255,255,.55); }
.cluster-node { width: 29%; aspect-ratio: 1; border: 1px solid var(--line); font-size: 10px; }
.cluster-node img { width: 54%; height: 31%; margin-bottom: 5px; object-fit: contain; }
.cluster-node strong { font-size: 11px; }
.node-1 { top: -3%; left: 35.5%; }
.node-2 { top: 26%; right: -2%; }
.node-3 { right: 8%; bottom: 1%; }
.node-4 { left: 8%; bottom: 1%; }
.node-5 { top: 26%; left: -2%; }
.bic-node { border-color: var(--green) !important; }
.bic-node strong { color: var(--green); }
.global-map { margin: 70px auto 57px; display: grid; grid-template-columns: 1fr 26px 1fr; grid-template-rows: 1fr 28px 1fr; align-items: center; gap: 4px; }
.global-map div { min-height: 116px; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px solid var(--line); text-align: center; font-size: 11px; }
.global-map div img { width: 96px; height: 36px; margin-bottom: 8px; object-fit: contain; }
.global-map div strong { font-size: 12px; }
.global-map i { color: var(--red); font: normal 16px Arial; text-align: center; }
.global-map i:nth-of-type(2) { grid-column: 3; grid-row: 2; }
.global-map div:nth-of-type(3) { grid-column: 1; grid-row: 3; }
.global-map i:nth-of-type(3) { grid-column: 2; grid-row: 3; }
.global-map div:nth-of-type(4) { grid-column: 3; grid-row: 3; }

.featured { min-height: 1250px; display: grid; grid-template-columns: 1fr; align-content: center; gap: 72px; background: #102722; color: #fff; }
.section-index.light { color: #fff; }
.featured-copy { display: grid; grid-template-columns: 1.4fr .6fr; gap: 8vw; align-items: end; }
.featured-copy h2 { margin-top: 16px; white-space: nowrap; }
.featured-copy > div:last-child > p { max-width: 460px; margin: 0 0 24px; color: rgba(255,255,255,.58); font-size: 14px; line-height: 1.85; }
.featured-copy .text-link { border-color: rgba(255,255,255,.5); }
.featured-gallery { min-width: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.featured-media { position: relative; display: block; aspect-ratio: 3/5; overflow: hidden; background: #111; }
.featured-media::after { display: none; }
.featured-media img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.78) contrast(1.04); transition: transform .8s; }
.featured-media:hover img { transform: scale(1.025); }
.media-caption { position: absolute; left: 0; right: 0; bottom: 0; padding: 70px 28px 28px; display: flex; flex-direction: column; gap: 8px; background: linear-gradient(transparent, rgba(0,0,0,.8)); }
.media-caption span { color: rgba(255,255,255,.65); font-size: 9px; letter-spacing: .12em; }
.media-caption strong { font-size: 19px; }

.contact { min-height: 650px; display: grid; grid-template-columns: 1.2fr .8fr; align-items: center; gap: 10vw; background: var(--paper-light); }
.contact-action a { display: flex; justify-content: space-between; align-items: center; padding: 0 0 22px; border-bottom: 1px solid var(--ink); font-size: 20px; font-weight: 700; }
.contact-action a span { color: var(--red); }
.contact-action p { margin-top: 24px; color: var(--muted); font-size: 12px; line-height: 1.8; }
footer { min-height: 200px; display: flex; justify-content: space-between; align-items: end; gap: 30px; padding: 60px 3.5vw 34px; background: #102722; color: rgba(255,255,255,.46); font-size: 9px; letter-spacing: .08em; }
footer img { width: 85px; filter: invert(1); }
.footer-brand { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; }
.footer-info { text-align: right; }
.footer-info p { margin: 4px 0; line-height: 1.5; }
.footer-info a:hover { color: #fff; }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 800px) {
  .site-header { height: 68px; padding: 0 20px; }
  .brand { width: 66px; } .brand img { width: 64px; }
  .menu-button { display: flex; width: 42px; height: 42px; flex-direction: column; justify-content: center; gap: 7px; border: 0; background: none; cursor: pointer; z-index: 2; }
  .menu-button span { width: 22px; height: 1px; background: currentColor; transition: .25s; }
  .menu-button.open span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-button.open span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .nav { position: fixed; inset: 0; z-index: 1; display: none; min-height: 100dvh; overflow-y: auto; flex-direction: column; justify-content: center; align-items: flex-start; gap: 22px; padding: 88px 20vw 48px; background: #1d201c; color: #fff; font-size: 28px; }
  .nav.open { display: flex; }
  .nav.open > a { display: block; flex: 0 0 auto; color: inherit; opacity: 1; visibility: visible; }
  .lang { font-size: 12px; margin-top: 20px; }
  .hero { min-height: 760px; padding: 140px 24px 70px; align-items: center; }
  .hero h1 { font-size: clamp(45px, 14vw, 70px); }
  .hero-description br { display: none; }
  .hero-aside { display: none; }
  .scroll { right: 18px; bottom: 34px; }
  .section { padding: 110px 24px; }
  .section-index { top: 34px; left: 24px; }
  .intro { min-height: auto; grid-template-columns: 1fr; gap: 80px; }
  .company-image { min-height: 420px; }
  .intro-grid { grid-template-columns: 1fr 1fr; }
  .intro-grid a { min-height: 145px; padding: 16px; }
  .intro-grid strong { font-size: 16px; }
  .chairman { min-height: auto; grid-template-columns: 1fr; gap: 55px; }
  .chairman-visual { max-height: 520px; aspect-ratio: 4/5; }
  .chairman-text { margin-top: 36px; }
  .about-heading { margin-bottom: 55px; }
  .about-heading > p:last-child { white-space: normal; }
  .about-tabs { grid-template-columns: 1fr 1fr; }
  .about-tab { min-height: 100px; padding: 16px; border-bottom: 1px solid var(--line); }
  .about-tab:nth-child(2) { border-right: 1px solid var(--line); }
  .about-panel { padding-top: 65px; }
  .overview-layout { grid-template-columns: 1fr; gap: 45px; }
  .overview-facts { margin-top: 45px; grid-template-columns: 1fr 1fr; }
  .overview-facts div:nth-child(2n) { border-right: 0; }
  .overview-facts div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .message-panel { margin-left: 0; margin-right: 0; padding: 55px 0; grid-template-columns: 1fr; gap: 55px; }
  .pending-panel { min-height: 320px; padding: 30px; }
  .organization-heading h3 { margin-bottom: 45px; }
  .org-level, .org-ceo { width: 100%; min-width: 0; }
  .org-branch { width: 70%; }
  .org-teams { width: 100%; gap: 12px; }
  .portfolio-page, .contact-page { padding-top: 145px; }
  .portfolio-tabs { margin-top: 55px; display: grid; grid-template-columns: 1fr 1fr; }
  .portfolio-tab { min-height: 58px; border-bottom: 1px solid var(--line); }
  .portfolio-grid { margin-top: 45px; grid-template-columns: 1fr; gap: 55px; }
  .slider-prev, .slider-next { width: 40px; height: 40px; }
  .portfolio-lightbox { padding: 8vh 16px; }
  .lightbox-scroll { height: min(720px, 84vh); grid-template-columns: 1fr; grid-template-rows: minmax(0, 44%) minmax(0, 56%); }
  .lightbox-image { height: 100%; }
  .lightbox-project-info { padding: 18px 20px 72px; align-self: start; }
  .lightbox-project-info h2 { margin-top: 6px; font-size: 21px; }
  .lightbox-project-info h3 { margin-top: 14px; padding-top: 12px; }
  .lightbox-project-info ul { font-size: 11px; line-height: 1.4; }
  .lightbox-project-info li + li { margin-top: 2px; }
  .lightbox-prev, .lightbox-next { top: 50%; bottom: auto; width: 44px; height: 44px; font-size: 34px; transform: translateY(-50%); }
  .lightbox-prev { left: 12px; }
  .lightbox-next { right: 12px; }
  .lightbox-count { bottom: 34px; }
  .contact-layout { margin-top: 60px; grid-template-columns: 1fr; }
  .contact-sidebar { height: auto; grid-template-rows: auto auto; }
  .contact-card, .location-card, .inquiry-form { padding: 25px 18px; }
  .inquiry-types { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .section-heading { display: block; margin-bottom: 55px; }
  .business-item { min-height: 250px; grid-template-columns: 1fr auto; gap: 22px; }
  .business-item > p { grid-column: 1 / 3; margin-left: 50px; }
  .business-mark { grid-column: 2; grid-row: 1 / span 2; font-size: 38px; }
  .business-intro { margin: -20px 0 55px; font-size: 13px; }
  .business-tabs { grid-template-columns: 1fr; }
  .business-tab { min-height: 100px; border: 1px solid var(--line); padding: 19px 16px; }
  .business-tab:last-child { border-bottom: 1px solid var(--line); }
  .business-panel { padding-top: 70px; }
  .panel-overview { grid-template-columns: 1fr; gap: 45px; }
  .business-visual { aspect-ratio: 4 / 3; margin-top: 55px; }
  .business-process { margin-top: 60px; grid-template-columns: 1fr; }
  .business-process li { min-height: 120px; align-items: flex-start; justify-content: center; border: 1px solid var(--line); }
  .business-process li:not(:last-child)::after { content: "↓"; top: auto; right: 50%; bottom: -16px; transform: translateX(50%); }
  .panel-statement { margin-top: 70px; padding: 55px 22px; }
  .network { margin-top: 70px; padding-top: 60px; }
  .network-heading { display: block; margin-bottom: 45px; }
  .network-heading > p:last-child { margin-top: 24px; }
  .network-panels { grid-template-columns: 1fr; }
  .network-panel { padding: 24px 18px; }
  .cluster-node { font-size: 11px; }
  .cluster-node span { font-size: 10px; }
  .global-map { margin: 46px auto 32px; }
  .featured { min-height: auto; grid-template-columns: 1fr; }
  .featured-copy { grid-template-columns: 1fr; gap: 28px; }
  .featured-copy h2 { white-space: normal; }
  .featured-gallery { grid-template-columns: 1fr; }
  .featured-media { aspect-ratio: 4/5; }
  .contact { min-height: 660px; grid-template-columns: 1fr; align-content: center; gap: 70px; }
  footer { flex-direction: column; align-items: start; }
  .footer-info { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}