/* Design tokens */
:root { --color-text: #090909; --color-text-muted: #686868; --color-text-secondary: #555; --color-text-subtle: #969696; --color-text-inverse: #fff; --color-text-inverse-muted: #aaa; --color-surface: #f7f7f5; --color-surface-light: #fff; --color-surface-dark: #080808; --color-border: #dedede; --line: #d8d8d6; --color-media-bg: #111; --container-max: 1500px; --page-gutter: 48px; --section-space: 115px; --layout-gap: 80px; --text-body: 14px; --text-ui: 12px; --text-meta: 11px; --leading-body: 1.7; --weight-display: 400; }

/* Base elements */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--color-surface); color: var(--color-text); font-family: Inter, "Noto Sans KR", sans-serif; }
a { color: inherit; text-decoration: none; }
p, ul { color: var(--color-text-muted); font-size: var(--text-body); line-height: var(--leading-body); }
h1, h2, h3 { font-weight: var(--weight-display); }

/* Base form controls */
label { font-size: var(--text-ui); font-weight: 600; }
input, textarea { padding: 12px 14px; border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text); font: inherit; font-size: var(--text-body); }
input:focus, textarea:focus { outline: none; border-color: var(--color-text); }
textarea { resize: vertical; }
button { padding: 14px 30px; border: none; background: var(--color-text); color: var(--color-text-inverse); cursor: pointer; }
button:hover { opacity: 0.85; }

/* Shared layout */
.wrap { width: min(calc(100% - 2 * var(--page-gutter)), var(--container-max)); margin: auto; }
.mono { filter: grayscale(1); }
figure.image { position: relative; }
figure.image figcaption { position: absolute; z-index: 1; top: 25px; right: 28px; color: var(--color-text-inverse); font-size: var(--text-meta); letter-spacing: 0.14em; text-align: right; }

/* Shared text and actions */
.section-label { color: var(--color-text-subtle); font-size: var(--text-meta); font-weight: 600; letter-spacing: 0.14em; }
.text-link, button { margin-top: 28px; font-size: var(--text-ui); font-weight: 500; }
.text-link { display: inline-block; }
.arrow { margin-left: 10px; }

/* Site header */
.site-header { display: flex; height: 88px; align-items: center; border-bottom: 1px solid var(--line); }
.site-header:has(+ main.home) { border-bottom: none; }
.site-header:has(+ main.person) { border-bottom: none; }
.header-content { display: flex; align-items: center; justify-content: space-between; }
.site-header .logo { display: inline-flex; align-items: center; }
.site-header .logo img { display: block; width: 62px; height: auto; }
.site-header nav { display: flex; gap: 36px; align-items: center; font-size: var(--text-ui); }
.site-header nav .active { font-weight: 600; }
.site-header .contact-link { margin-left: 90px; }
.menu-button { position: relative; display: none; width: 42px; height: 42px; margin: 0; padding: 0; border: 0; background: transparent; }
.menu-button::before, .menu-button::after { position: absolute; top: 50%; left: 10px; width: 22px; height: 1px; background: var(--color-text); content: ""; transition: transform 0.2s; }
.menu-button::before { transform: translateY(-4px); }
.menu-button::after { transform: translateY(4px); }
.site-header.open .menu-button::before { transform: rotate(45deg); }
.site-header.open .menu-button::after { transform: rotate(-45deg); }

/* Home page */
.home section { padding: var(--section-space) 0; }

/* Home: hero */
.home .main-hero { padding: 35px 0 0; }
.main-hero-content { display: grid; grid-template-columns: 0.84fr 1.16fr; min-height: 730px; gap: 70px; align-items: center; }
.main-hero h1 { margin: 31px 0 38px; font-size: clamp(58px, 6.7vw, 104px); line-height: 0.94; letter-spacing: -0.065em; }
.main-hero .intro { max-width: 440px; color: var(--color-text-secondary); }
.main-hero .round-link { display: flex; align-items: center; gap: 18px; margin-top: 40px; font-size: var(--text-ui); }
.main-hero .round-link span { display: grid; width: 46px; height: 46px; border-radius: 50%; background: var(--color-text); color: var(--color-text-inverse); place-items: center; }
.main-hero .hero-visual { position: relative; min-width: 0; height: 730px; background: var(--color-media-bg); }
.main-hero .slide { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; overflow: hidden; opacity: 0; transition: opacity 2s ease; }
.main-hero .slide img { display: block; width: 100%; height: 100%; object-fit: cover; }
.main-hero .slide.active { opacity: 1; }
.main-hero .page-index { position: absolute; z-index: 2; top: 43%; right: -62px; display: grid; gap: 27px; color: var(--color-text-subtle); font-size: var(--text-meta); }
.main-hero .page-index button { width: auto; margin: 0; padding: 0; background: transparent; color: inherit; font: inherit; }
.main-hero .page-index button.active { color: var(--color-text); font-weight: 500; }
.main-hero .page-index button.active::after { display: block; width: 1px; height: 28px; margin: 10px auto -7px; background: var(--color-text-subtle); content: ""; }
.main-hero .page-index button:focus-visible { outline: 1px solid currentColor; outline-offset: 6px; }

/* Home: Technology */
.technology { background-color: var(--color-surface-light); }
.technology-content { display: grid; grid-template-columns: 0.72fr 1.28fr; gap: var(--layout-gap); }
.technology h2 { margin: 22px 0 34px; font-size: clamp(54px, 5.4vw, 84px); line-height: 0.92; letter-spacing: -0.06em; }
.technology header p { max-width: 380px; }
.technology .cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.technology .cards article { position: relative; height: 500px; overflow: hidden; background: var(--color-media-bg); }
.technology .cards article img { display: block; width: 100%; height: 100%; object-fit: cover; }
.technology .cards article::after { position: absolute; inset: 45% 0 0; background: linear-gradient(transparent, rgb(0 0 0 / 82%)); content: ""; }
.technology .cards h3 { position: absolute; z-index: 2; bottom: 25px; left: 24px; margin: 0; color: var(--color-text-inverse); font-size: 20px; line-height: 1.05; }
.technology .cards h3 span { display: block; margin-top: 12px; font-size: 16px; }

/* Home: Products */
.products { background-color: var(--color-surface-light); }
.products-content { display: grid; grid-template-columns: 0.72fr 1.28fr; gap: var(--layout-gap); }
.products h2 { margin: 22px 0 34px; font-size: clamp(54px, 5.4vw, 84px); line-height: 0.92; letter-spacing: -0.06em; }
.products header p { max-width: 380px; }
.products .cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.products .cards article { position: relative; height: 500px; overflow: hidden; background: var(--color-media-bg); }
.products .cards article img { display: block; width: 100%; height: 100%; object-fit: cover; }
.products .cards article::after { position: absolute; inset: 45% 0 0; background: linear-gradient(transparent, rgb(0 0 0 / 82%)); content: ""; }
.products .cards h3 { position: absolute; z-index: 2; bottom: 25px; left: 24px; margin: 0; color: var(--color-text-inverse); font-size: 20px; line-height: 1.05; }
.products .cards h3 span { display: block; margin-top: 12px; font-size: 16px; }

/* Home: Services */
.home .services { display: grid; grid-template-columns: 1.08fr 0.92fr; min-height: 670px; padding: 0; }
.services .image { margin: 0; overflow: hidden; background: #222; }
.services .image img { display: block; width: 100%; height: 100%; object-fit: cover; }
.services .content { display: flex; flex-direction: column; justify-content: center; padding: 80px; }
.services h2 { margin: 0 0 38px; font-size: clamp(58px, 6vw, 92px); line-height: 0.92; letter-spacing: -0.06em; }
.services p { max-width: 480px; }

/* Home: Research */
.research-content { display: grid; grid-template-columns: 0.75fr 1.1fr 0.55fr; gap: 42px; align-items: center; }
.research h2 { margin: 25px 0 0; font-size: clamp(48px, 4.7vw, 73px); line-height: 0.96; letter-spacing: -0.055em; }
.research .image { min-width: 0; margin: 0; background: var(--color-media-bg); }
.research .image img { display: block; width: 100%; height: auto; }

/* Subpages */
.subpage h1 { margin: 24px 0; font-size: clamp(62px, 7vw, 108px); line-height: 0.93; letter-spacing: -0.065em; }
.subpage .lead { max-width: 700px; margin-bottom: 12px; color: var(--color-text-secondary); font-size: 17px; line-height: 1.75; }

/* Subpages: hero */
.subpage-hero { padding: 90px 0 70px; }
.subpage-hero header { display: grid; grid-template-columns: 0.72fr 1.28fr; gap: var(--layout-gap); align-items: end; }
.subpage-hero .image { position: relative; margin: 70px 0 0; background: var(--color-media-bg); }
.subpage-hero .image img { display: block; width: 100%; height: auto; }

/* Subpages: content */
.subpage-content { background: var(--color-surface-light); }
.subpage-layout { position: relative; display: grid; grid-template-columns: 240px minmax(0, 1fr); column-gap: 48px; min-height: 100vh; min-height: 100svh; }
.subpage-layout::before { position: absolute; top: 0; bottom: 0; left: 240px; width: 1px; background: var(--color-border); content: ""; pointer-events: none; }
.subpage-nav { position: sticky; top: 0; align-self: start; padding: 65px 48px 65px 0; }
.subpage-nav .section-label { margin-bottom: 35px; }
.subpage-nav a { display: block; padding: 15px 0; border-bottom: 1px solid var(--color-border); color: var(--color-text-subtle); font-size: var(--text-ui); font-weight: 400; transition: color 0.2s, text-shadow 0.2s; }
.subpage-nav a.active { color: var(--color-text); text-shadow: -0.25px 0 currentColor, 0.25px 0 currentColor; }
.subpage-content .content { min-width: 0; padding: 85px 0; }
.subpage-content .content article { display: grid; grid-template-columns: minmax(170px, 0.45fr) minmax(0, 1.55fr); gap: 48px; padding: 60px 0; border-top: 1px solid var(--color-border); }
.subpage-content .content article h2 { margin: 0; font-size: clamp(28px, 2.2vw, 32px); letter-spacing: -0.04em; }
.subpage-content .content article p { margin-top: 0; }
.subpage-content .content article > div > ul { margin: 0; padding-inline-start: 1.1em; }
.subpage-content .content .diagram { position: relative; margin: 30px 0 0; background: #0c0c0d url("assets/texture.webp") center / cover; }
.subpage-content .content .diagram img { display: block; width: 100%; height: auto; }
.subpage-content .content .diagram figcaption { position: absolute; top: 14px; right: 16px; color: var(--color-text-inverse); font-size: var(--text-meta); letter-spacing: 0.14em; text-align: right; }
.subpage-content .content article.person-profile { grid-template-columns: minmax(170px, 0.45fr) minmax(0, 1fr) 260px; }

/* Subpages: specifications */
.specifications { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--color-border); }
.specifications div { padding: 18px 0; border-bottom: 1px solid var(--color-border); }
.specifications div:nth-child(odd) { border-right: 1px solid var(--color-border); }
.specifications div:nth-child(even) { padding-left: 25px; }
.specifications b { display: block; font-size: 22px; font-weight: var(--weight-display); }
.specifications small { color: var(--color-text-subtle); }

/* Subpages: CI logo gallery */
.ci-gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin-top: 30px; }
.ci-card { padding: 24px; border: 1px solid var(--color-border); }
.ci-title { display: block; box-sizing: border-box; max-width: 100%; margin: 0 0 16px; padding: 8px 12px; border-radius: 10px; background: var(--color-surface); color: var(--color-text); font-size: var(--text-meta); font-weight: 600; letter-spacing: 0.02em; word-break: break-all; }
.ci-preview { display: flex; align-items: center; justify-content: center; min-height: 200px; padding: 24px; margin-bottom: 20px; border: 1px solid var(--color-border); background: var(--color-surface-light); }
.ci-preview--checker { background-color: #fff; background-image: linear-gradient(45deg, #e6e6e6 25%, transparent 25%), linear-gradient(-45deg, #e6e6e6 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #e6e6e6 75%), linear-gradient(-45deg, transparent 75%, #e6e6e6 75%); background-position: 0 0, 0 12px, 12px -12px, -12px 0; background-size: 24px 24px; }
.ci-preview--checker-dark { border-color: #333; background-color: #3a3a3a; background-image: linear-gradient(45deg, #525252 25%, transparent 25%), linear-gradient(-45deg, #525252 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #525252 75%), linear-gradient(-45deg, transparent 75%, #525252 75%); background-position: 0 0, 0 12px, 12px -12px, -12px 0; background-size: 24px 24px; }
.ci-logo { display: block; width: 100%; max-width: 300px; height: auto; }
.ci-app-icon { display: block; width: 160px; height: 160px; }
.ci-download { display: inline-flex; align-items: center; justify-content: center; min-width: 140px; height: 40px; padding: 0 20px; border: 1px solid var(--color-text); border-radius: 999px; color: var(--color-text); font-size: var(--text-ui); font-weight: 600; text-decoration: none; }
@media (max-width: 800px) {
  .ci-gallery { grid-template-columns: 1fr; }
}

/* Subpages: data table */
.table-scroll { margin-top: 30px; overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: 14px 16px; border: 1px solid var(--color-border); font-size: var(--text-ui); line-height: 1.6; text-align: left; vertical-align: top; }
.data-table thead th { background: var(--color-text); color: var(--color-text-inverse); font-weight: 600; letter-spacing: 0.02em; white-space: nowrap; }
.data-table tbody th { background: var(--color-surface); color: var(--color-text); font-weight: 600; white-space: nowrap; }
.data-table td { color: var(--color-text-muted); }
.data-table td ul { margin: 0; padding-inline-start: 1.1em; font-size: var(--text-ui); }
.data-table td ul li { padding: 2px 0; }

/* Subpages: color swatches */
.swatches { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin-top: 20px; }
.swatches div { display: flex; flex-direction: column; justify-content: flex-end; height: 90px; padding: 10px 12px; border: 1px solid var(--color-border); font-size: var(--text-ui); font-weight: 600; }
.swatches small { font-weight: 400; font-size: var(--text-meta); }

/* Subpages: nested sub-section heading inside a numbered article section */
.subpage-content .content article .subhead { display: block; margin-top: 36px; margin-bottom: 4px; font-size: 19px; letter-spacing: -0.02em; font-weight: var(--weight-display); }
.subpage-content .content article p:first-child .subhead { margin-top: 0; }

/* Contact */
.contact-hero { padding: 90px 0 60px; }
.contact-body { padding-bottom: 120px; background: var(--color-surface-light); }
.contact-content { display: grid; grid-template-columns: 0.6fr 1fr; gap: var(--layout-gap); align-items: start; padding-top: 70px; }
.contact-info dl { margin: 28px 0 0; }
.contact-info dl div { padding: 20px 0; border-top: 1px solid var(--color-border); }
.contact-info dt { color: var(--color-text-subtle); font-size: var(--text-meta); letter-spacing: 0.1em; }
.contact-info dd { margin: 8px 0 0; color: var(--color-text-muted); font-size: var(--text-body); line-height: var(--leading-body); }
.contact-body form { display: flex; flex-direction: column; }
.contact-body form label { margin-top: 18px; }
.contact-body form label:first-child { margin-top: 0; }
.contact-body form input, .contact-body form textarea { margin-top: 8px; }
.contact-body .privacy-consent { display: flex; gap: 10px; align-items: flex-start; margin-top: 18px; }
.contact-body .privacy-consent input { flex: 0 0 auto; width: 16px; height: 16px; margin: 3px 0 0; padding: 0; accent-color: var(--color-text); }
.contact-body .privacy-consent label { margin: 0; color: var(--color-text-muted); font-size: var(--text-ui); font-weight: 400; line-height: 1.7; }
.contact-body .privacy-consent a { color: var(--color-text); text-decoration: underline; text-underline-offset: 3px; }
.contact-body form button { align-self: start; }
.contact-body .hp-field { position: absolute; top: -9999px; left: -9999px; height: 0; overflow: hidden; }
.contact-body .form-notice { margin: 0 0 20px; padding: 12px 16px; border: 1px solid var(--color-border); color: var(--color-text); font-size: var(--text-ui); line-height: normal; }
.contact-body .form-notice--success { background: var(--color-surface); }
.contact-body .form-notice--error { border-color: #e2b4b4; background: #fdecec; color: #8a2222; }

/* People profile */
.person { background-color: var(--color-surface); }
.person-hero { padding: 90px 0 70px; }
.person-hero h1 { margin: 24px 0; font-size: clamp(62px, 7vw, 108px); line-height: 0.93; letter-spacing: -0.065em; }
.person-hero .lead { max-width: 700px; margin-bottom: 12px; color: var(--color-text-secondary); font-size: 17px; line-height: 1.75; }
.person-card { align-self: start; }
.person-photo { width: 250px; height: 312px; overflow: hidden; background: var(--color-media-bg); }
.person-photo .portrait { display: block; width: 100%; height: 100%; object-fit: cover; }
.person-photo-empty { display: grid; background: #f1f1ef; color: #a2a29d; place-items: center; }
.person-placeholder-icon { width: 88px; height: 88px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.person-qr { display: block; flex: 0 0 auto; width: 54px; height: 54px; padding: 4px; border: 1px solid var(--color-border); background: var(--color-surface-light); cursor: zoom-in; }
.person-qr img { display: block; width: 100%; height: 100%; }
.person-qr-dialog { width: min(calc(100% - 32px), 380px); padding: 46px 32px 32px; border: 0; background: var(--color-surface-light); color: var(--color-text); text-align: center; }
.person-qr-dialog::backdrop { background: rgb(0 0 0 / 72%); }
.person-qr-dialog h2 { margin: 0 0 22px; font-size: 22px; }
.person-qr-dialog img { display: block; width: min(280px, 100%); height: auto; margin: 0 auto; }
.person-qr-dialog p { margin: 18px 0 0; font-size: var(--text-ui); }
.person-qr-dialog__close { position: absolute; top: 8px; right: 8px; width: 36px; height: 36px; margin: 0; padding: 0; background: transparent; color: var(--color-text); font-size: 24px; line-height: 1; }
body.qr-modal-open { overflow: hidden; }
.person-card h2 { margin: 22px 0 4px; font-size: 22px; }
.person-card p { margin: 0 0 22px; }
.person-card ul { margin: 0; padding: 0; border-top: 1px solid var(--color-border); list-style: none; }
.person-card li { padding: 13px 0; border-bottom: 1px solid var(--color-border); color: var(--color-text-muted); font-size: var(--text-ui); }
.person-card li.person-vcard { display: flex; gap: 16px; align-items: center; justify-content: space-between; padding: 10px 0; }
.person-card a { color: var(--color-text); }

/* Privacy policy */
.privacy-page { background: var(--color-surface-light); }
.privacy-body { padding: 85px 0 120px; }
.privacy-document { max-width: 920px; margin: 0 auto; }
.privacy-heading { margin-bottom: 52px; }
.privacy-heading h1 { margin: 18px 0 20px; font-size: clamp(48px, 5vw, 76px); line-height: 1; letter-spacing: -0.055em; }
.privacy-meta { margin: 0; color: var(--color-text-secondary); font-size: 15px; }
.privacy-summary { margin: 0 0 32px; padding: 26px 0; border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); color: var(--color-text-secondary); font-size: 17px; line-height: 1.75; }
.privacy-document > section { padding: 40px 0; border-top: 1px solid var(--color-border); }
.privacy-document > section:first-of-type { border-top: 0; }
.privacy-document h2 { max-width: 760px; margin: 0 0 20px; font-size: clamp(24px, 2.1vw, 30px); line-height: 1.2; letter-spacing: -0.035em; }
.privacy-document p, .privacy-document ul { max-width: 760px; }
.privacy-document ul { margin: 0; padding-inline-start: 1.1em; }
.privacy-document a { color: var(--color-text); text-decoration: underline; text-underline-offset: 3px; }
.privacy-muted { color: var(--color-text-subtle); font-size: var(--text-ui); }
.privacy-info-list { max-width: 760px; margin: 26px 0; border-top: 1px solid var(--color-border); }
.privacy-info-list > div { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 24px; padding: 16px 0; border-bottom: 1px solid var(--color-border); }
.privacy-info-list dt { color: var(--color-text-subtle); font-size: var(--text-ui); }
.privacy-info-list dd { margin: 0; color: var(--color-text-muted); font-size: var(--text-body); line-height: var(--leading-body); }

/* Site footer */
.site-footer { padding: 0 0 30px; background: var(--color-surface-dark); color: var(--color-text-inverse); }
.footer-main { display: grid; grid-template-columns: 1.4fr 0.6fr; gap: var(--layout-gap); align-items: center; padding: 75px 0; }
.footer-intro h2 { margin: 0; font-size: clamp(42px, 5vw, 75px); line-height: 0.98; letter-spacing: -0.055em; }
.footer-action { max-width: 430px; }
.footer-action p { margin: 0; color: var(--color-text-inverse-muted); font-size: 14px; }
.footer-action .text-link { font-size: 14px; }
.footer-action a:hover, .footer-privacy:hover { color: var(--color-text-inverse-muted); }
.footer-bottom { display: flex; padding-top: 24px; align-items: center; justify-content: space-between; border-top: 1px solid #1d1d1d; }
.footer-copyright, .footer-privacy { color: var(--color-text-inverse-muted); font-size: 13px; }


/* Media queries */
@media (prefers-reduced-motion: reduce) {
  .main-hero .slide { transition: none; }
}

@media (max-width: 1000px) {
  .footer-main { grid-template-columns: 1fr; gap: 38px; padding: 60px 0; }
}

@media (max-width: 920px) {
  :root { --page-gutter: 20px; }
  body.menu-open { overflow: hidden; }
  .site-header { position: relative; z-index: 100; background: var(--color-surface); }
  .menu-button { display: block; }
  .site-header nav { position: fixed; top: 88px; right: 0; bottom: 0; left: 0; display: none; flex-direction: column; gap: 0; align-items: stretch; padding: 24px var(--page-gutter) 32px; overflow-y: auto; background: var(--color-surface); }
  .site-header.open nav { display: flex; }
  .site-header nav a { display: block; padding: 17px 0; border-top: 1px solid var(--color-border); font-size: clamp(30px, 7vw, 46px); line-height: 1.1; letter-spacing: -0.04em; }
  .site-header nav .contact-link { margin: auto 0 0; border-bottom: 1px solid var(--color-border); font-size: 18px; letter-spacing: -0.02em; }
  .main-hero-content { grid-template-columns: 1fr; gap: 40px; }
  .main-hero .hero-visual { height: 65vh; min-height: 500px; }
  .main-hero .page-index { display: none; }
  .technology-content, .products-content, .home .services, .research-content { grid-template-columns: 1fr; }
  .technology .cards, .products .cards { grid-template-columns: repeat(3, minmax(250px, 1fr)); padding-bottom: 10px; overflow-x: auto; }
  .services .image { min-height: 550px; }
  .services .content { padding: 70px 30px; }
}

@media (max-width: 800px) {
  .subpage-hero header, .subpage-layout, .subpage-content .content article, .subpage-content .content article.person-profile, .specifications, .contact-content { grid-template-columns: 1fr; }
  .subpage-layout::before, .subpage-nav { display: none; }
  .subpage-content .content { padding: 70px 0; }
  .specifications div:nth-child(odd) { border-right: 0; }
  .person-card { width: min(250px, 100%); }
}

@media (max-width: 560px) {
  :root { --page-gutter: 14px; }
  figure.image figcaption { top: 16px; right: 16px; }
  .site-header { height: 68px; }
  .site-header nav { top: 68px; }
  .home { --section-space: 58px; }
  .home .main-hero { padding-top: 10px; }
  .main-hero-content { min-height: auto; gap: 28px; }
  .main-hero h1 { margin: 24px 0 28px; font-size: 52px; }
  .main-hero .round-link { margin-top: 28px; }
  .main-hero .hero-visual { height: clamp(380px, 58vh, 440px); min-height: 0; }
  .technology-content, .products-content, .research-content { gap: 28px; }
  .technology h2, .products h2, .services h2 { font-size: 52px; }
  .technology .cards article, .products .cards article { height: 360px; }
  .services .image { min-height: 340px; }
  .services .content { padding: 50px 20px; }
  .services h2 { margin-bottom: 28px; }
  .research h2 { font-size: 50px; }
  .subpage h1 { margin: 20px 0; font-size: 52px; }
  .subpage .lead { font-size: 15px; }
  .subpage-hero { padding: 55px 0 45px; }
  .subpage-hero header { gap: 28px; }
  .subpage-hero .image { margin-top: 40px; }
  .subpage-content .content { padding: 32px 0 50px; }
  .subpage-content .content article, .subpage-content .content article.person-profile { gap: 24px; padding: 36px 0; }
  .subpage-content .content article h2 { font-size: 26px; }
  .subpage-content .content .diagram { margin-top: 24px; }
  .subpage-content .content .diagram figcaption { top: 12px; right: 12px; }
  .subpage-content .content article.person-profile > h2 { order: 1; }
  .subpage-content .content article.person-profile > .person-card { order: 2; }
  .subpage-content .content article.person-profile > div { order: 3; }
  .contact-hero { padding: 55px 0 45px; }
  .contact-body { padding-bottom: 75px; }
  .contact-content { gap: 44px; padding-top: 45px; }
  .person .subpage-content .content { padding-top: 16px; }
  .person .subpage-content .content article.person-profile { padding-top: 24px; border-top: 0; }
  .person-card { display: grid; width: 100%; grid-template-columns: 120px minmax(0, 1fr); grid-template-rows: auto auto 1fr; column-gap: 18px; }
  .person-card .person-photo { grid-row: 1 / 4; grid-column: 1; width: 120px; height: auto; min-height: 150px; }
  .person-card h2 { grid-row: 1; grid-column: 2; margin: 0 0 4px; color: var(--color-text-secondary); font-size: 16px; line-height: 1.3; letter-spacing: -0.01em; }
  .person-card p { grid-row: 2; grid-column: 2; margin: 0 0 12px; }
  .person-card ul { grid-row: 3; grid-column: 2; align-self: start; }
  .person-card li.person-vcard { display: grid; grid-template-columns: minmax(0, 1fr) 44px; gap: 12px; padding: 8px 0; }
  .person-card li.person-vcard a { white-space: nowrap; }
  .person-card .person-qr { width: 44px; height: 44px; }
  .person-qr-dialog { padding: 42px 24px 26px; }
  .privacy-meta { font-size: 14px; }
  .privacy-body { padding: 45px 0 70px; }
  .privacy-heading { margin-bottom: 38px; }
  .privacy-heading h1 { font-size: 44px; }
  .privacy-document > section { padding: 30px 0; }
  .privacy-info-list > div { grid-template-columns: 1fr; gap: 5px; }
  .site-footer { padding-bottom: 24px; }
  .footer-main { padding: 52px 0; }
  .footer-intro h2 { font-size: 42px; }
  .footer-bottom { gap: 20px; align-items: flex-start; }
  .footer-copyright, .footer-privacy { font-size: 12px; }
}