:root {
    --color-navy: #0b1e32;
    --color-blue: #146fa8;
    --color-electric: #35c6e8;
    --color-steel: #a8bcd0;
    --color-surface: #f5f8fb;
    --color-text: #182635;
    --color-white: #fff;
    --color-muted: #5b6b7a;
    --color-line: #dce4eb;
    --page-width: 1240px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 110px;
}

body {
    margin: 0;
    color: var(--color-text);
    background: var(--color-white);
    font-family: "Pretendard", "Noto Sans KR", "Malgun Gothic", "Apple SD Gothic Neo", system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.75;
    word-break: keep-all;
    overflow-wrap: anywhere;
}

body, h1, h2, h3, p, ul, dl, dd {
    margin: 0;
}

h1, h2, h3 {
    line-height: 1.4;
    letter-spacing: -.045em;
}

h2 {
    font-size: clamp(26px, 2.6vw, 38px);
    font-weight: 700;
}

h3 {
    font-size: 22px;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

button {
    font: inherit;
    cursor: pointer;
}

button, a {
    -webkit-tap-highlight-color: transparent;
}

button[hidden] {
    display: none;
}

::selection {
    background: #b6edfa;
    color: var(--color-navy);
}

:focus-visible {
    outline: 3px solid var(--color-blue);
    outline-offset: 5px;
}

.hero :focus-visible, .site-footer :focus-visible {
    outline-color: var(--color-electric);
}

.container {
    width: min(var(--page-width), calc(100% - 96px));
    margin-inline: auto;
}

.section {
    padding-block: 96px;
}

.eyebrow {
    margin-bottom: 20px;
    color: var(--color-blue);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .16em;
    line-height: 1.6;
}

.micro-label {
    color: var(--color-muted);
    font-size: 11px;
    letter-spacing: .12em;
}

.preserve-lines {
    white-space: pre-line;
}

.body-copy {
    color: var(--color-muted);
    font-size: 17px;
    line-height: 1.95;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: fixed;
    top: 8px;
    left: 16px;
    padding: 12px 20px;
    color: white;
    background: var(--color-navy);
    z-index: 100;
    transform: translateY(-160%);
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    border-bottom: 1px solid #e8edf1;
    background: #fff;
}

.header-inner {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
}

.brand {
    display: block;
    width: 230px;
    flex-shrink: 0;
}

.brand img {
    width: 100%;
}

.primary-nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    position: relative;
    padding: 28px 0;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
}

.nav-link[aria-current="page"]::after {
    content: "";
    position: absolute;
    bottom: 16px;
    height: 3px;
    left: 0;
    right: 0;
    background: var(--color-blue);
}

.nav-link:hover {
    color: var(--color-blue);
}

.nav-contact {
    padding: 11px 20px;
    color: white;
    background: var(--color-navy);
    border-radius: 24px;
}

.nav-contact:hover {
    color: white;
    background: var(--color-blue);
}

.nav-contact[aria-current="page"]::after {
    left: 20px;
    right: 20px;
    bottom: 6px;
    background: var(--color-electric);
}

.menu-toggle {
    display: none;
    border: 1px solid var(--color-line);
    background: white;
    align-items: center;
    gap: 12px;
    min-height: 44px;
    padding: 8px 12px;
    font-size: 13px;
}

.menu-bars, .menu-bars::before, .menu-bars::after {
    width: 18px;
    height: 2px;
    background: var(--color-navy);
    display: block;
}

.menu-bars {
    position: relative;
}

.menu-bars::before, .menu-bars::after {
    position: absolute;
    content: "";
    left: 0;
}

.menu-bars::before {
    top: -6px;
}

.menu-bars::after {
    top: 6px;
}

.menu-toggle[aria-expanded="true"] .menu-bars {
    background: transparent;
}

.menu-toggle[aria-expanded="true"] .menu-bars::before {
    top: 0;
    transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-bars::after {
    top: 0;
    transform: rotate(-45deg);
}

.hero {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    min-height: 650px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: white;
    background: #071b2d;
}

.hero-art {
    position: absolute;
    z-index: -3;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-shade {
    position: absolute;
    z-index: -2;
    inset: 0;
    background: linear-gradient(90deg, #06192def 0%, #071c30c9 36%, #071b2d26 72%), linear-gradient(0deg, #071b2d99, transparent 25%);
}

.hero::after {
    content: "";
    position: absolute;
    z-index: -1;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(ellipse at 82% 60%, #35c6e80c, transparent 52%);
    animation: current-glow 8s ease-in-out infinite alternate;
}

.hero-content {
    padding-top: 88px;
    padding-bottom: 102px;
}

.hero .eyebrow {
    color: #95dcf0;
    font-size: 11px;
    letter-spacing: .21em;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(36px, 3.8vw, 58px);
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: -.055em;
}

.hero h1 span {
    color: #b6edfa;
}

.hero-description {
    margin-top: 26px;
    color: #d2dce7;
    font-size: 16px;
    line-height: 1.95;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    margin-top: 36px;
}

.button {
    display: inline-flex;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
    min-height: 50px;
    padding: 12px 22px;
    border: 1px solid transparent;
    border-radius: 2px;
    font-size: 14px;
    font-weight: 700;
    transition: background .2s, color .2s;
}

.button span {
    font-size: 19px;
    line-height: 1;
}

.button-light {
    background: white;
    color: var(--color-navy);
}

.button-light:hover {
    background: #c6f2fc;
}

.button-outline-light {
    color: white;
    border-color: #748ba1;
}

.button-outline-light:hover {
    background: #ffffff16;
    border-color: var(--color-electric);
}

.button-dark {
    background: var(--color-navy);
    color: white;
}

.button-dark:hover {
    background: var(--color-blue);
}

.hero-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-block: 22px;
    border-top: 1px solid #9ac5db33;
    font-size: 10px;
    letter-spacing: .12em;
    color: #b8cadb;
}

.hero-bottom a {
    display: inline-flex;
    align-items: center;
    gap: 20px;
    min-height: 32px;
    font-size: 12px;
    letter-spacing: 0;
    color: white;
}

.hero-bottom a span {
    font-size: 20px;
}

.signal-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    margin-right: 10px;
    border-radius: 50%;
    background: var(--color-electric);
    box-shadow: 0 0 12px #35c6e866;
}

.section-heading {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 32px;
    margin-bottom: 40px;
}

.section-heading > p {
    color: var(--color-muted);
    font-size: 15px;
}

.section-heading .eyebrow {
    margin-bottom: 14px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 28px;
    min-height: 44px;
    font-size: 14px;
    font-weight: 600;
}

.text-link span {
    font-size: 21px;
    color: var(--color-blue);
}

.text-link:hover {
    color: var(--color-blue);
    text-decoration: underline;
    text-underline-offset: 5px;
}

.business-feature {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    background: var(--color-surface);
}

.business-visual {
    position: relative;
    overflow: hidden;
    min-height: 350px;
    background: var(--color-navy);
}

.business-visual > img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.visual-label {
    position: absolute;
    bottom: 24px;
    left: 28px;
    color: #b8d7e5;
    font-size: 10px;
    letter-spacing: .18em;
}

.business-copy {
    position: relative;
    align-self: center;
    padding: 48px 52px;
}

.small-tag {
    color: var(--color-blue);
    font-size: 12px;
    border-bottom: 1px solid #9ac3dd;
    padding-bottom: 5px;
}

.business-copy h3 {
    font-size: 34px;
    margin: 20px 0 16px;
}

.business-copy > p {
    max-width: 390px;
    color: var(--color-muted);
}

.business-copy .scope-note {
    margin-top: 12px;
    font-size: 12px;
}

.circle-link {
    width: 46px;
    height: 46px;
    margin-top: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #bccbd6;
    border-radius: 50%;
    color: var(--color-blue);
    font-size: 23px;
}

.circle-link:hover {
    color: white;
    background: var(--color-blue);
    border-color: var(--color-blue);
}

.principles {
    padding-top: 12px;
}

.principles-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid var(--color-line);
}

.principle {
    padding: 36px 28px 4px;
    border-right: 1px solid var(--color-line);
    margin-top: 16px;
}

.principle:first-child {
    padding-left: 0;
}

.principle:last-child {
    border-right: 0;
}

.principle img {
    margin-bottom: 28px;
}

.principle .micro-label {
    margin-bottom: 6px;
    font-size: 10px;
    color: var(--color-blue);
}

.principle h3 {
    margin-bottom: 14px;
    font-size: 26px;
}

.principle > p:last-child {
    color: var(--color-muted);
    font-size: 14px;
}

.company-preview {
    position: relative;
    overflow: hidden;
    background: #eaf1f6;
}

.company-preview-inner {
    position: relative;
    padding-block: 64px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 120px;
    isolation: isolate;
}

.company-preview h2 {
    font-size: clamp(26px, 2.4vw, 34px);
}

.company-preview-inner > div:nth-child(2) > p {
    color: #4d6273;
    max-width: 420px;
    line-height: 1.95;
}

.company-preview .text-link {
    margin-top: 24px;
}

.company-watermark {
    position: absolute;
    z-index: -1;
    width: 280px;
    right: -35px;
    bottom: -80px;
    opacity: .055;
    transform: rotate(-8deg);
}

.notice-layout {
    display: grid;
    grid-template-columns: 1fr 1.7fr;
    gap: 80px;
}

.notice-layout .text-link {
    margin-top: 20px;
}

.notice-preview-list {
    align-self: center;
    border-top: 2px solid var(--color-navy);
    border-bottom: 1px solid var(--color-line);
}

.quiet-empty {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 40px 24px;
}

.quiet-empty h3 {
    font-size: 17px;
    letter-spacing: -.02em;
    margin-bottom: 8px;
}

.quiet-empty p {
    color: var(--color-muted);
    font-size: 14px;
}

.notice-preview-item {
    display: flex;
    gap: 20px;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid var(--color-line);
}

.notice-preview-item time {
    color: var(--color-muted);
    font-size: 13px;
}

.notice-preview-item strong {
    flex: 1;
}

.related-section {
    padding-block: 40px 56px;
    border-top: 1px solid var(--color-line);
    background: var(--color-surface);
}

.section-heading.compact {
    margin-bottom: 24px;
    align-items: center;
}

.compact h2 {
    font-size: 22px;
}

.compact > p {
    font-size: 13px;
}

.new-window-hint {
    margin-left: 12px;
    color: var(--color-muted);
}

.related-sites {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    list-style: none;
    padding: 0;
    gap: 16px;
}

.related-sites a {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 20px 22px;
    background: white;
    border: 1px solid var(--color-line);
    transition: border-color .2s;
}

.related-sites a:hover {
    border-color: var(--color-blue);
}

.related-description {
    color: var(--color-muted);
    font-size: 11px;
    margin-bottom: 5px;
}

.related-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    font-size: 15px;
    font-weight: 600;
}

.external-arrow {
    color: var(--color-blue);
    font-size: 19px;
}

.site-footer {
    color: #d2dde8;
    background: linear-gradient(105deg, #111f2e 55%, #172e43e8), url('../images/power-grid.svg') right center / cover;
}

.footer-main {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr) 180px;
    gap: 48px;
    padding-block: 36px 28px;
}

.footer-navigation {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 24px;
    font-size: 12px;
    margin-bottom: 18px;
}

.footer-navigation a:hover {
    color: var(--color-electric);
}

.footer-contact-block .button {
    border-radius: 30px;
    border-color: #82c9e8;
    font-size: 11px;
    min-height: 42px;
    gap: 20px;
}

.footer-contact-block p {
    margin-top: 24px;
    color: #aac7df;
    font-family: Georgia, serif;
    font-size: 20px;
    font-style: italic;
    line-height: 1.5;
}

.footer-contact-block p span {
    padding-left: 12px;
    font-size: 16px;
}

.footer-brand-block .brand {
    margin-bottom: 16px;
    width: 220px;
}

.footer-brand-block > p {
    color: #a8bcd0;
    font-size: 13px;
}

.footer-brand-block .footer-company {
    margin-top: 12px;
    color: #d2dde8;
}

.footer-company span {
    padding-inline: 8px;
}

.footer-sites h2 {
    font-size: 14px;
    letter-spacing: 0;
    margin: 8px 0 18px;
}

.footer-sites h2 span {
    font-size: 10px;
    font-weight: 400;
    color: #a8bcd0;
    margin-left: 16px;
}

.footer-sites .related-sites {
    grid-template-columns: 1fr 1fr;
    column-gap: 32px;
    row-gap: 0;
}

.footer-sites .related-sites a {
    border: 0;
    border-bottom: 1px solid #a8bcd026;
    background: none;
    padding: 9px 0;
    min-height: 44px;
}

.footer-sites .related-sites a:hover {
    color: var(--color-electric);
}

.footer-sites .related-title {
    font-size: 12px;
    font-weight: 400;
}

.footer-sites .related-description {
    display: none;
}

.footer-sites .external-arrow {
    color: #a8bcd0;
    font-size: 15px;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding-block: 20px;
    border-top: 1px solid #a8bcd026;
}

.footer-bottom small {
    font-size: 10px;
    color: #a8bcd0;
}

.footer-bottom a {
    display: flex;
    gap: 20px;
    min-height: 32px;
    align-items: center;
    font-size: 12px;
}

.page-heading {
    position: relative;
    overflow: hidden;
    padding: 24px 0 64px;
    color: white;
    background-color: var(--color-navy);
    background-image: linear-gradient(90deg, #0b1e32 15%, #0b1e32b3), url('../images/power-grid.svg');
    background-position: center, right 48%;
    background-size: cover;
}

.breadcrumb {
    display: flex;
    gap: 14px;
    align-items: center;
    margin-bottom: 48px;
    font-size: 12px;
    color: #b5c6d6;
}

.breadcrumb a {
    min-height: 32px;
    display: inline-flex;
    align-items: center;
}

.breadcrumb a:hover {
    color: white;
}

.page-heading .eyebrow {
    color: #9cdaec;
    margin-bottom: 16px;
}

.page-heading h1 {
    font-size: clamp(32px, 3.3vw, 48px);
}

.page-description {
    max-width: 650px;
    color: #c4d1de;
    margin-top: 22px;
    font-size: 15px;
}

.company-overview {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 96px;
    align-items: center;
}

.company-emblem {
    min-height: 360px;
    border: 1px solid var(--color-line);
    background-color: var(--color-surface);
    background-image: linear-gradient(#b8cbd333 1px, transparent 1px), linear-gradient(90deg, #b8cbd333 1px, transparent 1px);
    background-size: 30px 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 60px;
}

.company-emblem > span {
    font-size: 10px;
    color: var(--color-blue);
    letter-spacing: .2em;
    text-align: center;
    margin-top: 30px;
}

.company-overview h2 {
    font-size: 30px;
    margin-bottom: 24px;
}

.company-facts {
    margin-top: 32px;
    border-top: 2px solid var(--color-navy);
}

.company-facts > div {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 20px;
    border-bottom: 1px solid var(--color-line);
    padding: 14px 0;
    font-size: 14px;
}

.company-facts dt {
    color: var(--color-muted);
}

.page-next {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
}

.page-next h2 {
    font-size: 30px;
}

.page-next p:not(.eyebrow) {
    color: var(--color-muted);
    margin-top: 16px;
}

.surface-section {
    background: var(--color-surface);
    padding-block: 60px;
}

.business-introduction {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-bottom: 48px;
}

.business-banner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    overflow: hidden;
    color: white;
    background: var(--color-navy);
    margin-bottom: 72px;
}

.business-banner img {
    width: 100%;
    max-height: 320px;
    object-fit: cover;
}

.business-banner p {
    padding: 40px;
    font-size: 28px;
    color: #b1c9dc;
    line-height: 1.65;
}

.business-banner strong {
    color: white;
}

.roles-heading h2 {
    font-size: 28px;
    margin-bottom: 16px;
}

.roles-heading p {
    color: var(--color-muted);
    max-width: 760px;
    font-size: 14px;
}

.business-roles {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 36px;
    gap: 32px;
}

.business-role {
    position: relative;
    border-top: 2px solid var(--color-navy);
    padding-top: 32px;
}

.role-number {
    position: absolute;
    right: 0;
    top: 24px;
    font-size: 14px;
    color: var(--color-muted);
}

.business-role h3 {
    margin-top: 24px;
    font-size: 22px;
}

.business-role p {
    color: var(--color-muted);
    margin-top: 16px;
    font-size: 15px;
}

.empty-state {
    text-align: center;
    padding: 56px 24px 64px;
    border-top: 2px solid var(--color-navy);
    border-bottom: 1px solid var(--color-line);
    background: linear-gradient(180deg, var(--color-surface), white);
}

.empty-state > img {
    margin: 0 auto 28px;
}

.empty-state .eyebrow {
    font-size: 10px;
    margin-bottom: 14px;
}

.empty-state h2 {
    font-size: 26px;
}

.empty-state > p:not(.eyebrow):not(.error-number) {
    margin-top: 20px;
    color: var(--color-muted);
    font-size: 15px;
}

.empty-state > .button {
    margin-top: 32px;
}

.empty-state .hero-actions {
    justify-content: center;
}

.error-number {
    color: var(--color-blue);
    font-size: 84px;
    font-weight: 700;
    letter-spacing: -.06em;
}

.error-state h1 {
    font-size: 32px;
}

.project-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
}

.project-item {
    border-top: 2px solid var(--color-navy);
    padding: 30px 0;
}

.project-item h2 {
    font-size: 24px;
}

.project-item p {
    margin-top: 16px;
    color: var(--color-muted);
}

.notice-list {
    border-top: 2px solid var(--color-navy);
}

.notice-item {
    border-bottom: 1px solid var(--color-line);
    padding: 24px 0;
}

.notice-item summary {
    cursor: pointer;
    padding: 8px 12px;
}

.notice-item time {
    margin-right: 28px;
    font-size: 13px;
    color: var(--color-muted);
}

.notice-item > p {
    margin-top: 24px;
    padding: 24px;
    background: var(--color-surface);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 100px;
}

.contact-layout h2 {
    font-size: 30px;
}

.contact-layout .body-copy {
    margin-top: 24px;
}

.contact-illustration {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-top: 40px;
}

.contact-illustration span {
    color: var(--color-muted);
    font-size: 10px;
    letter-spacing: .12em;
}

.contact-information {
    padding: 40px;
    border-top: 2px solid var(--color-navy);
    background: var(--color-surface);
}

.contact-information h2 {
    font-size: 24px;
    margin-bottom: 24px;
}

.contact-information dl > div {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--color-line);
    font-size: 14px;
}

.contact-information dt {
    color: var(--color-muted);
}

.contact-information a {
    color: var(--color-blue);
    text-decoration: underline;
    text-underline-offset: 4px;
}

.pending {
    color: var(--color-muted);
}

.contact-note {
    margin-top: 28px;
    font-size: 13px;
    color: var(--color-muted);
}

@keyframes current-glow {
    from {
        opacity: .25;
    }
    to {
        opacity: 1;
    }
}

@media (min-width: 1600px) {
    .hero {
        min-height: 720px;
    }
    .hero-content {
        padding-block: 120px;
    }
}

@media (max-width: 1100px) {
    .container {
        width: calc(100% - 64px);
    }
    .primary-nav {
        gap: 20px;
    }
    .brand {
        width: 190px;
    }
    .nav-link {
        font-size: 13px;
    }
    .nav-contact {
        padding-inline: 14px;
    }
    .header-inner {
        gap: 20px;
    }
    .business-copy {
        padding: 36px;
    }
    .company-preview-inner {
        gap: 64px;
    }
    .principle {
        padding-inline: 20px;
    }
    .footer-main {
        gap: 32px;
        grid-template-columns: 220px minmax(0, 1fr) 170px;
    }
    .company-overview, .contact-layout {
        gap: 48px;
    }
    .related-sites a {
        padding-inline: 16px;
    }
    .related-title {
        font-size: 13px;
    }
}

@media (max-width: 900px) {
    .header-inner {
        min-height: 76px;
        flex-wrap: wrap;
        padding-block: 12px;
    }
    .primary-nav {
        width: 100%;
        justify-content: space-between;
        gap: 12px;
    }
    .nav-link {
        padding-block: 12px;
    }
    .nav-link[aria-current="page"]::after {
        bottom: 4px;
    }
    .nav-contact {
        padding: 10px 14px;
    }
    .menu-ready .menu-toggle {
        display: inline-flex;
    }
    .menu-ready .primary-nav {
        display: none;
    }
    .menu-ready .primary-nav.is-open {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 12px 0 4px;
    }
    .menu-ready .primary-nav .nav-link {
        padding: 13px 12px;
    }
    .menu-ready .primary-nav .nav-link[aria-current="page"] {
        background: var(--color-surface);
        color: var(--color-blue);
    }
    .menu-ready .primary-nav .nav-link[aria-current="page"]::after {
        width: 3px;
        height: auto;
        left: 0;
        top: 12px;
        bottom: 12px;
    }
    .menu-ready .primary-nav .nav-contact {
        margin-top: 8px;
    }
    .hero {
        min-height: 610px;
    }
    .hero-art {
        object-position: 60% center;
    }
    .hero-content {
        padding-block: 90px;
    }
    .hero h1 {
        font-size: 46px;
    }
    .hero-shade {
        background: linear-gradient(90deg, #06192ded, #071c30ab 65%, #071b2d33);
    }
    .section {
        padding-block: 72px;
    }
    .principles {
        padding-top: 0;
    }
    .business-feature {
        grid-template-columns: 1fr 1fr;
    }
    .business-visual {
        min-height: 320px;
    }
    .business-copy {
        padding: 28px;
    }
    .business-copy h3 {
        font-size: 30px;
    }
    .business-copy p {
        font-size: 14px;
    }
    .principles-grid {
        grid-template-columns: 1fr 1fr;
    }
    .principle {
        padding: 24px;
    }
    .principle:first-child {
        padding-left: 24px;
    }
    .principle:nth-child(2) {
        border: 0;
    }
    .principle img {
        margin-bottom: 18px;
    }
    .company-preview-inner {
        gap: 48px;
    }
    .notice-layout {
        grid-template-columns: 1fr 1.5fr;
        gap: 40px;
    }
    .related-sites {
        grid-template-columns: 1fr 1fr;
    }
    .footer-main {
        gap: 28px;
        grid-template-columns: 1fr 1fr;
    }
    .footer-contact-block {
        grid-column: 1 / -1;
        display: flex;
        align-items: center;
        gap: 24px;
    }
    .footer-contact-block p {
        margin-top: 0;
    }
    .company-overview {
        grid-template-columns: minmax(0, 1fr);
    }
    .company-emblem {
        min-height: 240px;
        padding: 40px;
        align-items: center;
    }
    .company-emblem img {
        width: 100%;
        max-width: 360px;
    }
    .business-introduction {
        gap: 36px;
    }
    .business-banner p {
        font-size: 22px;
        padding: 28px;
    }
    .contact-layout {
        gap: 36px;
    }
    .contact-information {
        padding: 28px;
    }
}

@media (max-width: 600px) {
    html {
        scroll-padding-top: 90px;
    }
    .container {
        width: calc(100% - 40px);
    }
    .header-inner {
        min-height: 72px;
        gap: 12px;
    }
    .brand {
        width: 156px;
    }
    .menu-toggle {
        padding-inline: 10px;
        gap: 10px;
        font-size: 12px;
    }
    .primary-nav {
        flex-wrap: wrap;
        justify-content: flex-start;
        gap: 6px 18px;
    }
    .hero {
        min-height: 590px;
    }
    .hero-art {
        object-position: 66% center;
        opacity: .7;
    }
    .hero-shade {
        background: linear-gradient(90deg, #06192df2, #071c309c), linear-gradient(0deg, #071b2d, transparent 50%);
    }
    .hero-content {
        padding-block: 70px 66px;
    }
    .hero .eyebrow {
        font-size: 9px;
        letter-spacing: .15em;
        margin-bottom: 22px;
    }
    .hero h1 {
        font-size: clamp(28px, 7.1vw, 42px);
        line-height: 1.5;
    }
    .hero-description {
        font-size: 14px;
        margin-top: 24px;
    }
    .hero-actions {
        gap: 10px;
        margin-top: 30px;
    }
    .button {
        padding: 12px 16px;
        gap: 20px;
        font-size: 12px;
        min-height: 48px;
    }
    .hero-bottom {
        padding-block: 18px;
        letter-spacing: .04em;
        font-size: 8px;
        gap: 12px;
    }
    .hero-bottom a {
        font-size: 11px;
        gap: 10px;
        flex-shrink: 0;
    }
    .signal-dot {
        width: 4px;
        height: 4px;
        margin-right: 5px;
    }
    .section {
        padding-block: 56px;
    }
    .eyebrow {
        font-size: 10px;
        margin-bottom: 14px;
    }
    .section-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 18px;
        margin-bottom: 28px;
    }
    .section-heading > p {
        font-size: 14px;
    }
    .section-heading > p br {
        display: none;
    }
    .text-link {
        font-size: 13px;
        gap: 20px;
    }
    .business-feature {
        grid-template-columns: 1fr;
    }
    .business-visual {
        min-height: 0;
        height: 250px;
    }
    .business-copy {
        padding: 30px;
    }
    .business-copy h3 {
        margin-top: 18px;
    }
    .business-copy p {
        max-width: 100%;
    }
    .circle-link {
        margin-top: 22px;
    }
    .principles {
        padding-top: 0;
    }
    .principle, .principle:first-child {
        padding: 20px 14px;
    }
    .principle img {
        width: 40px;
    }
    .principle .micro-label {
        font-size: 8px;
        letter-spacing: .05em;
    }
    .principle h3 {
        font-size: 23px;
    }
    .principle > p:last-child {
        font-size: 12px;
        white-space: normal;
    }
    .company-preview-inner {
        grid-template-columns: 1fr;
        gap: 24px;
        padding-block: 44px;
    }
    .company-preview-inner > div:nth-child(2) > p {
        font-size: 14px;
    }
    .company-preview .text-link {
        margin-top: 16px;
    }
    .notice-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .notice-layout .text-link {
        margin-top: 10px;
    }
    .quiet-empty {
        padding: 30px 4px;
        gap: 16px;
    }
    .quiet-empty h3 {
        font-size: 15px;
    }
    .quiet-empty p {
        font-size: 12px;
    }
    .quiet-empty img {
        width: 32px;
        flex-shrink: 0;
    }
    .related-section {
        padding-block: 32px 40px;
    }
    .section-heading.compact {
        align-items: flex-start;
        gap: 10px;
    }
    .compact > p {
        font-size: 12px;
    }
    .new-window-hint {
        display: block;
        margin: 4px 0 0;
    }
    .related-sites {
        gap: 10px;
    }
    .related-sites a {
        padding: 16px 12px;
    }
    .related-title {
        gap: 8px;
        font-size: 12px;
    }
    .related-description {
        font-size: 10px;
    }
    .footer-main {
        grid-template-columns: 1fr;
        gap: 28px;
        padding-block: 36px;
    }
    .footer-brand-block .brand {
        width: 190px;
    }
    .footer-brand-block > p {
        font-size: 12px;
    }
    .footer-sites .related-sites {
        column-gap: 24px;
    }
    .footer-bottom {
        gap: 10px;
    }
    .footer-bottom small {
        font-size: 9px;
    }
    .footer-bottom a {
        font-size: 10px;
        gap: 10px;
    }
    .page-heading {
        padding-bottom: 44px;
    }
    .breadcrumb {
        margin-bottom: 30px;
        font-size: 11px;
    }
    .page-heading h1 {
        font-size: 32px;
    }
    .page-description {
        font-size: 13px;
    }
    .company-overview {
        gap: 36px;
    }
    .company-emblem {
        padding: 24px;
        min-height: 220px;
    }
    .company-emblem > span {
        font-size: 8px;
    }
    .company-overview h2, .page-next h2, .contact-layout h2 {
        font-size: 25px;
    }
    .body-copy {
        font-size: 15px;
    }
    .page-next {
        align-items: flex-start;
        flex-direction: column;
        gap: 24px;
    }
    .business-introduction {
        grid-template-columns: 1fr;
        gap: 24px;
        margin-bottom: 32px;
    }
    .business-banner {
        grid-template-columns: 1fr;
        margin-bottom: 48px;
    }
    .business-banner img {
        max-height: 250px;
    }
    .business-banner p {
        font-size: 22px;
        padding: 24px;
    }
    .roles-heading h2 {
        font-size: 24px;
    }
    .roles-heading p {
        font-size: 13px;
    }
    .business-roles {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    .business-role h3 {
        margin-top: 18px;
    }
    .empty-state {
        padding: 40px 16px;
    }
    .empty-state h2 {
        font-size: 22px;
    }
    .empty-state > p:not(.eyebrow):not(.error-number) {
        font-size: 13px;
    }
    .project-list {
        grid-template-columns: 1fr;
    }
    .notice-item time {
        display: block;
        margin: 0 0 6px;
    }
    .notice-item > p {
        padding: 18px;
        font-size: 14px;
    }
    .contact-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .contact-illustration {
        margin-top: 24px;
    }
    .contact-illustration img {
        width: 64px;
    }
    .contact-information {
        padding: 24px;
    }
    .contact-information dl > div {
        grid-template-columns: 80px 1fr;
        gap: 12px;
        font-size: 13px;
    }
    .error-state h1 {
        font-size: 26px;
    }
    .hero::after {
        animation: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    *, *::before, *::after {
        animation: none;
        transition: none;
    }
}