:root {
  --blue: #1755e8;
  --blue-dark: #1042bb;
  --navy: #112743;
  --text: #192b43;
  --muted: #59697d;
  --line: #e3e9f1;
  --light: #f4f7fc;
  --container: 1220px;
  --font: "Pretendard", "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 104px; }
body { margin: 0; color: var(--text); background: #fff; font-family: var(--font); font-size: 16px; line-height: 1.7; -webkit-font-smoothing: antialiased; word-break: keep-all; overflow-wrap: break-word; }
body, h1, h2, h3, p, ul, dl, dd { margin: 0; }
ul { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
img, svg { display: block; max-width: 100%; }
[hidden] { display: none !important; }
::selection { background: #d5e4ff; color: #10376c; }
:focus-visible { outline: 3px solid #2a77ff; outline-offset: 5px; border-radius: 3px; }
.container { width: min(var(--container), calc(100% - 80px)); margin-inline: auto; }
.icon { width: 22px; height: 22px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.skip-link { position: fixed; z-index: 20; top: 12px; left: 12px; padding: 12px 20px; color: #fff; background: var(--navy); border-radius: 8px; transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.eyebrow { color: var(--blue); font-size: 12px; font-weight: 750; letter-spacing: .13em; line-height: 1.5; }
.text-blue { color: var(--blue); }

.site-header { position: sticky; top: 0; z-index: 10; background: rgba(255, 255, 255, .97); border-bottom: 1px solid var(--line); }
.header-inner { min-height: 86px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand-name { display: flex; align-items: baseline; gap: 10px; font-size: 25px; font-weight: 850; letter-spacing: -.055em; line-height: 1; }
.brand-korean { font-size: 12px; font-weight: 600; letter-spacing: -.025em; color: var(--muted); }
.site-nav { display: flex; align-items: center; gap: 31px; }
.site-nav > a { font-size: 14px; font-weight: 650; transition: color .2s; }
.site-nav > a:hover { color: var(--blue); }
.site-nav .nav-contact { display: flex; align-items: center; gap: 19px; padding: 11px 20px; border-radius: 7px; color: #fff; background: var(--navy); transition: background .2s; }
.site-nav .nav-contact:hover { color: #fff; background: var(--blue); }
.nav-contact .icon { width: 17px; height: 17px; }
.menu-toggle { display: none; }

.hero { background: linear-gradient(115deg, #fff 20%, #f5f8ff 100%); }
.hero-layout { display: grid; grid-template-columns: 1.12fr 1fr; align-items: center; gap: 50px; padding-block: 86px 70px; }
.hero-copy { padding-block: 10px; }
.hero .eyebrow { display: flex; align-items: center; gap: 9px; margin-bottom: 23px; font-size: 13px; letter-spacing: -.015em; }
.small-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 5px #e7efff; margin: 5px; }
h1 { font-size: clamp(33px, 3.85vw, 53px); font-weight: 780; line-height: 1.34; letter-spacing: -.065em; }
h1 > span { color: var(--blue); }
.hero-description { margin-top: 26px; font-size: 21px; line-height: 1.65; font-weight: 550; letter-spacing: -.035em; }
.hero-detail { margin-top: 15px; color: var(--muted); font-size: 14px; line-height: 1.9; letter-spacing: -.02em; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 16px; min-height: 53px; padding: 13px 23px; border: 1px solid transparent; border-radius: 7px; font-size: 14px; font-weight: 700; line-height: 1.6; transition: background .2s, box-shadow .2s, transform .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; background: var(--blue); }
.button-primary:hover { background: var(--blue-dark); box-shadow: 0 7px 18px #1755e825; }
.button-primary .icon { width: 18px; height: 18px; }
.button-secondary { background: #fff; border-color: #d9e1ed; }
.button-secondary:hover { background: #f0f5ff; }
.hero-note { display: flex; align-items: center; gap: 6px; margin-top: 18px; color: #607086; font-size: 12px; }
.hero-note .icon { width: 15px; height: 15px; color: #5176ab; }
.hero-visual { position: relative; min-width: 0; overflow: hidden; background-color: #102742; background-image: radial-gradient(circle at 60% 45%, #193b69 0%, transparent 60%), radial-gradient(#36506b70 .7px, transparent .7px); background-size: auto, 20px 20px; border: 1px solid #254566; border-radius: 21px; box-shadow: 0 20px 45px -25px #1d3c7180; }
.visual-heading { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 25px 26px 0; }
.visual-wordmark { color: #dceafa; font-size: 10px; font-weight: 700; letter-spacing: .16em; }
.visual-caption { color: #b9cbe2; font-size: 10px; }
.network-illustration { width: 100%; height: auto; margin-block: -7px -12px; }
.visual-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 25px; border-top: 1px solid #315071; color: #c1d0e2; font-size: 10px; }
.visual-footer-mark { display: inline-flex; align-items: center; gap: 7px; color: #9bc9ff; }
.visual-footer .icon { width: 13px; height: 13px; }
.hero-bottom { display: grid; grid-template-columns: 1.2fr 1fr 1fr 1fr; align-items: center; gap: 30px; border-top: 1px solid #dfe6f1; padding-block: 27px 29px; }
.hero-bottom > p { color: var(--muted); font-size: 12px; line-height: 1.8; }
.hero-bottom strong { color: #2e4059; font-size: 13px; font-weight: 650; }
.hero-bottom > div { display: flex; align-items: center; justify-content: center; gap: 12px; min-height: 39px; border-left: 1px solid #dfe6f1; font-size: 14px; font-weight: 650; }
.hero-bottom .icon { width: 24px; height: 24px; color: #5078b1; }

.section { padding-block: 106px; }
h2 { margin-top: 15px; font-size: clamp(29px, 3vw, 39px); font-weight: 750; line-height: 1.4; letter-spacing: -.055em; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 35px; margin-bottom: 43px; }
.section-description { color: var(--muted); font-size: 15px; line-height: 1.9; letter-spacing: -.025em; }
.section-heading .section-description { padding-bottom: 5px; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 23px; }
.service-card { display: flex; flex-direction: column; padding: 30px; background: #fff; border: 1px solid var(--line); border-radius: 13px; transition: border-color .2s, box-shadow .2s, transform .2s; }
.service-card:hover { border-color: #a7c3f9; box-shadow: 0 14px 30px -15px #1b477330; transform: translateY(-4px); }
.service-card-featured { background: #f5f8ff; border-color: #c7d9fa; }
.service-card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 30px; }
.service-icon { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 13px; color: var(--blue); background: #edf3ff; }
.service-icon .icon { width: 28px; height: 28px; }
.service-card-featured .service-icon { color: #fff; background: var(--blue); }
.service-number { font-size: 12px; font-weight: 650; color: #596c85; }
.service-category { color: #526480; font-size: 9px; font-weight: 700; letter-spacing: .1em; }
.service-card h3 { margin-block: 8px 15px; font-size: 24px; font-weight: 750; letter-spacing: -.055em; line-height: 1.4; }
.service-card > p:not(.service-category) { color: var(--muted); font-size: 14px; line-height: 1.85; }
.service-points { display: grid; gap: 8px; margin-block: 24px 30px; font-size: 13px; color: #455970; }
.service-points li { display: flex; align-items: baseline; gap: 9px; }
.service-points li::before { content: ""; width: 4px; height: 4px; flex: 0 0 4px; position: relative; bottom: 3px; border-radius: 50%; background: #7d9bcc; }
.text-link { display: inline-flex; align-items: center; gap: 12px; color: var(--blue); font-size: 13px; font-weight: 700; }
.text-link .icon { width: 17px; height: 17px; transition: transform .2s; }
.text-link:hover .icon { transform: translateX(4px); }
.service-card .text-link { justify-content: space-between; margin-top: auto; padding-top: 20px; border-top: 1px solid #e0e8f5; }

.equipment-section { background: #f7f9fc; border-block: 1px solid var(--line); }
.equipment-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-bottom: 32px; }
.equipment-tab { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; column-gap: 8px; min-height: 62px; padding: 12px; border: 1px solid #dae3ef; border-radius: 40px; background: #fff; color: #465a74; font-size: 18px; font-weight: 750; line-height: 1.5; transition: background .2s, border-color .2s, box-shadow .2s; }
.equipment-tab > span { font-size: 12px; font-weight: 550; }
.equipment-tab:hover { border-color: #94b4ed; background: #edf3ff; }
.equipment-tab[aria-selected="true"] { color: #fff; background: var(--blue); border-color: var(--blue); box-shadow: 0 7px 18px #1755e826; }
.equipment-panel + .equipment-panel { margin-top: 48px; }
.equipment-panel[role="tabpanel"] { margin-top: 0; }
.lineup-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 24px; }
.lineup-heading h3 { font-size: 20px; font-weight: 750; letter-spacing: -.025em; }
.lineup-heading p { margin-top: 4px; color: var(--muted); font-size: 13px; }
.lineup-count { flex-shrink: 0; color: #62728a; font-size: 10px; font-weight: 700; letter-spacing: .13em; }
.equipment-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.equipment-card { display: flex; flex-direction: column; min-width: 0; padding: 24px 22px 19px; border: 1px solid #e0e7f0; border-radius: 22px; background: #fff; box-shadow: 0 12px 30px -22px #27487033; transition: border-color .2s, box-shadow .2s; }
.equipment-card:hover { border-color: #a7c3f9; box-shadow: 0 16px 34px -22px #27487055; }
.equipment-tag { align-self: flex-start; padding: 4px 9px; border-radius: 5px; background: #f0f5fd; color: #4d6586; font-size: 10px; font-weight: 650; }
.equipment-figure { position: relative; display: flex; align-items: center; justify-content: center; height: 158px; margin: 0; padding-block: 23px 20px; }
.equipment-figure img { width: 100%; height: auto; max-height: 112px; object-fit: contain; }
.equipment-figure figcaption { position: absolute; bottom: 3px; color: #68778b; font-size: 9px; text-align: center; }
.equipment-name { padding-block: 15px 25px; text-align: center; border-bottom: 1px solid var(--line); }
.equipment-name > p { color: #62728a; font-size: 11px; margin-bottom: 4px; }
.equipment-name h4 { margin: 0; color: #172b46; font-size: 22px; line-height: 1.45; letter-spacing: -.04em; }
.equipment-specs { padding-top: 10px; }
.equipment-specs > div { display: flex; align-items: center; justify-content: space-between; gap: 9px; min-height: 59px; padding-block: 13px; border-bottom: 1px dashed #e8edf4; }
.equipment-specs dt { color: var(--muted); font-size: 12px; line-height: 1.5; }
.equipment-specs dd { flex-shrink: 0; max-width: 60%; color: #1250ce; font-size: 14px; font-weight: 750; text-align: right; line-height: 1.6; font-variant-numeric: tabular-nums; }
.equipment-source { display: flex; justify-content: center; align-items: center; gap: 7px; min-height: 44px; margin-top: auto; padding-top: 12px; color: #576b86; font-size: 11px; }
.equipment-source:hover { color: var(--blue); text-decoration: underline; }
.lineup-note { margin-top: 18px; color: #5c6c81; font-size: 12px; line-height: 1.85; }
.lineup-note + .lineup-note { margin-top: 6px; }
.equipment-footer { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 26px; padding-top: 23px; border-top: 1px solid #dfe6f0; }
.equipment-footer > p { color: #5c6c81; font-size: 11px; line-height: 1.85; }
.equipment-footer .text-link { flex-shrink: 0; }

.monthly-section { background: var(--light); }
.monthly-layout { display: grid; grid-template-columns: 1.1fr 1fr; align-items: center; gap: 98px; }
.monthly-copy > .section-description { margin-top: 21px; }
.body-copy { color: var(--muted); font-size: 14px; line-height: 1.9; margin-top: 15px; max-width: 470px; }
.monthly-principles { display: grid; gap: 23px; margin-top: 32px; }
.monthly-principles > div { display: flex; gap: 16px; align-items: flex-start; }
.monthly-principles > div > span { display: grid; place-items: center; flex: 0 0 30px; height: 30px; border: 1px solid #cbdaf4; border-radius: 50%; font-size: 10px; font-weight: 750; color: var(--blue); background: #fff; margin-top: 3px; }
.monthly-principles p { color: var(--muted); font-size: 12px; }
.monthly-principles strong { display: block; margin-bottom: 4px; color: var(--text); font-size: 15px; font-weight: 700; }
.monthly-card { position: relative; padding: 35px; border: 1px solid #dce5f3; border-radius: 17px; background: #fff; box-shadow: 0 20px 60px -35px #173f7d50; }
.monthly-card::before { position: absolute; content: ""; inset: -1px 24px auto; height: 3px; background: var(--blue); border-radius: 0 0 4px 4px; }
.monthly-card-header { display: flex; align-items: center; justify-content: space-between; gap: 15px; color: var(--blue); margin-bottom: 26px; }
.plan-label { font-size: 10px; font-weight: 750; letter-spacing: .09em; }
.monthly-card h3 { margin-bottom: 12px; font-size: 26px; font-weight: 750; line-height: 1.5; letter-spacing: -.05em; }
.monthly-card > p { color: var(--muted); font-size: 14px; }
.plan-items { margin-block: 29px; border-top: 1px solid var(--line); }
.plan-items > div { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding-block: 18px; border-bottom: 1px solid var(--line); }
.plan-items dt { font-size: 14px; font-weight: 650; }
.plan-items dd { padding: 4px 10px; border-radius: 4px; color: #4d6391; background: #f0f4fa; font-size: 11px; white-space: nowrap; }
.button-full { width: 100%; }
.monthly-card .plan-note { margin-top: 13px; font-size: 11px; text-align: center; }

.about-section { position: relative; background: #102744; color: #fff; padding-block: 84px; overflow: hidden; }
.about-section::after { content: ""; position: absolute; width: 390px; height: 390px; top: -140px; right: -90px; border: 1px solid #ffffff0c; border-radius: 50%; box-shadow: 0 0 0 75px #ffffff03, 0 0 0 150px #ffffff02; pointer-events: none; }
.about-layout { display: grid; grid-template-columns: 1.1fr 1fr; align-items: center; gap: 98px; position: relative; z-index: 1; }
.about-section .eyebrow { color: #91b9ff; }
.about-section h2 { font-size: 36px; line-height: 1.55; font-weight: 650; }
.about-name { display: block; font-size: 18px; font-weight: 700; margin-bottom: 19px; }
.about-copy p { color: #c4d0e0; font-size: 14px; line-height: 2; margin-bottom: 13px; }
.about-copy .text-link { margin-top: 15px; color: #a5cbff; }

.faq-layout { display: grid; grid-template-columns: .8fr 1.3fr; gap: 80px; }
.faq-layout > div > .section-description { margin-top: 19px; font-size: 13px; }
.faq-list { border-top: 2px solid var(--navy); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 25px 3px; list-style: none; font-size: 15px; font-weight: 650; cursor: pointer; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary .icon { width: 18px; height: 18px; color: #697b92; transition: transform .2s; }
.faq-list details[open] summary { color: var(--blue); }
.faq-list details[open] summary .icon { transform: rotate(45deg); }
.faq-list details > p { margin: -4px 30px 25px 3px; color: var(--muted); font-size: 14px; line-height: 1.9; }

.contact-section { background: #eff4ff; padding-block: 77px 66px; }
.contact-inner { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 80px; }
.contact-heading > p:last-child { margin-top: 19px; color: var(--muted); font-size: 14px; line-height: 1.85; }
.contact-methods { display: grid; gap: 13px; }
.contact-card { display: flex; align-items: center; gap: 19px; padding: 23px 26px; background: #fff; border: 1px solid #dce6f7; border-radius: 12px; transition: border-color .2s, box-shadow .2s; }
a.contact-card:hover, .email-card:hover { border-color: #9bbbf7; box-shadow: 0 8px 20px -12px #3f61a540; }
.contact-icon { display: grid; place-items: center; flex: 0 0 44px; height: 44px; color: var(--blue); background: #eef4ff; border-radius: 50%; }
.contact-icon .icon { width: 21px; height: 21px; }
.contact-card-text { min-width: 0; flex: 1; }
.contact-label { display: block; color: var(--muted); font-size: 11px; font-weight: 600; }
.contact-card strong { display: block; margin-top: 3px; font-size: 23px; font-weight: 700; letter-spacing: -.025em; line-height: 1.6; overflow-wrap: anywhere; }
.contact-hint { display: block; color: var(--muted); font-size: 11px; margin-top: 3px; }
.contact-arrow { width: 20px; height: 20px; color: #54729f; }
.email-card { display: block; padding: 0; overflow: hidden; }
.email-link { display: flex; align-items: center; gap: 19px; padding: 23px 26px; }
.email-link:focus-visible { outline-offset: -4px; border-radius: 10px; }
.copy-email { display: flex; align-items: center; justify-content: center; gap: 7px; width: 100%; min-height: 39px; padding: 8px 15px; color: #516784; background: #f9fbff; border: 0; border-top: 1px solid #e5edf8; font-size: 11px; }
.copy-email:hover { background: #eaf1ff; color: var(--blue); }
.copy-email:focus-visible { outline-offset: -4px; }
.copy-email .icon { width: 14px; height: 14px; }
.copy-status { min-height: 20px; text-align: center; font-size: 12px; color: #174caf; }
.clipboard-field { position: fixed; top: 0; left: -9999px; width: 1px; height: 1px; }

.site-footer { padding-block: 36px 27px; background: #fff; }
.footer-top { display: flex; align-items: center; gap: 24px; padding-bottom: 26px; border-bottom: 1px solid var(--line); }
.footer-top .brand-name { font-size: 22px; }
.footer-top > p { color: var(--muted); font-size: 12px; }
.back-to-top { display: flex; align-items: center; gap: 12px; font-size: 11px; color: var(--muted); margin-left: auto; }
.back-to-top > span { display: grid; place-items: center; width: 30px; height: 30px; border: 1px solid var(--line); border-radius: 50%; font-size: 16px; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-top: 23px; font-size: 11px; color: #66768c; }
.footer-bottom > div { display: flex; align-items: center; flex-wrap: wrap; column-gap: 20px; row-gap: 5px; }
.footer-bottom strong { color: #354961; font-weight: 650; }
.footer-bottom a:hover { color: var(--blue); text-decoration: underline; }

@media (min-width: 1500px) {
  .hero-layout { padding-block: 100px 85px; }
}

@media (max-width: 1100px) {
  .container { width: calc(100% - 56px); }
  .site-nav { gap: 22px; }
  .brand-korean { display: none; }
  .hero-layout { gap: 28px; padding-block: 66px 52px; }
  .hero-description { font-size: 19px; }
  .hero-detail { font-size: 13px; }
  .desktop-break { display: none; }
  .hero-actions { gap: 9px; }
  .hero-actions .button { padding-inline: 17px; font-size: 13px; }
  .hero-bottom { gap: 17px; }
  .hero-bottom > div { gap: 9px; font-size: 12px; }
  .service-grid { gap: 17px; }
  .service-card { padding: 25px; }
  .service-card h3 { font-size: 22px; }
  .equipment-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .equipment-card { padding-inline: 27px; }
  .equipment-figure img { max-width: 280px; }
  .monthly-layout, .about-layout { gap: 56px; }
  .monthly-card { padding: 28px; }
  .faq-layout, .contact-inner { gap: 48px; }
  a.contact-card, .email-link { padding: 23px 20px; gap: 13px; }
  .contact-card strong { font-size: 20px; }
}

@media (max-width: 900px) {
  .site-nav { gap: 14px; }
  .site-nav > a { font-size: 12px; }
  .site-nav .nav-contact { gap: 9px; padding-inline: 13px; }
  .hero-layout { grid-template-columns: 1fr; gap: 37px; padding-top: 54px; }
  .hero-copy { text-align: center; }
  .hero .eyebrow, .hero-actions, .hero-note { justify-content: center; }
  h1 { font-size: 48px; }
  .hero-visual { width: min(100%, 580px); justify-self: center; }
  .hero-description br { display: none; }
  .hero-detail { max-width: 460px; margin-inline: auto; }
  .hero-bottom { grid-template-columns: repeat(3, 1fr); }
  .hero-bottom > p { display: none; }
  .hero-bottom > div:first-of-type { border-left: 0; }
  .section { padding-block: 80px; }
  .service-card { padding: 21px; }
  .service-card h3 { font-size: 20px; }
  .service-category { font-size: 8px; letter-spacing: .04em; }
  .service-card > p:not(.service-category) { font-size: 13px; }
  .service-points { font-size: 12px; }
  .monthly-layout, .about-layout { gap: 36px; }
  .monthly-card { padding: 26px; }
  .monthly-card h3 { font-size: 23px; }
  .plan-items > div { align-items: flex-start; flex-direction: column; gap: 6px; padding-block: 13px; }
  .monthly-card .button { padding-inline: 13px; gap: 10px; font-size: 12px; }
  .about-section h2 { font-size: 31px; }
  .faq-layout { grid-template-columns: .75fr 1.2fr; gap: 34px; }
  .faq-list summary { font-size: 14px; gap: 14px; }
  .contact-inner { gap: 27px; }
  a.contact-card, .email-link { padding: 21px 18px; gap: 11px; }
  .contact-icon { flex-basis: 36px; height: 36px; }
  .contact-card strong { font-size: 18px; }
  .contact-arrow { width: 16px; height: 16px; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: 10px; }
}

@media (max-width: 760px) {
  html { scroll-padding-top: 91px; }
  html:not(.js) .site-header { position: static; }
  .container { width: calc(100% - 40px); }
  .header-inner { min-height: 72px; flex-wrap: wrap; gap: 0; }
  .header-inner > .brand { margin-block: 18px; }
  .header-inner > .brand img { width: 32px; height: 32px; }
  .brand-name { font-size: 23px; }
  .brand-korean { display: inline; font-size: 11px; }
  .menu-toggle { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; width: 42px; height: 42px; padding: 10px; border: 1px solid #e1e7f1; border-radius: 7px; background: #fff; }
  .menu-toggle span { display: block; width: 18px; height: 1.5px; background: var(--text); transition: transform .2s, opacity .2s; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(6.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-6.5px) rotate(-45deg); }
  .site-nav { width: 100%; flex-direction: column; align-items: stretch; gap: 0; padding: 6px 0 18px; border-top: 1px solid var(--line); }
  .site-nav > a { padding: 12px 6px; font-size: 14px; }
  .site-nav .nav-contact { justify-content: space-between; padding: 12px 16px; margin-top: 5px; }
  .js .site-nav:not(.is-open) { display: none; }
  .hero-layout { padding-top: 41px; padding-bottom: 37px; }
  .hero .eyebrow { margin-bottom: 20px; font-size: 12px; }
  h1 { font-size: clamp(28px, 6.45vw, 44px); letter-spacing: -.065em; line-height: 1.45; }
  .hero-description { font-size: 17px; margin-top: 20px; }
  .hero-description br { display: block; }
  .hero-detail { max-width: 410px; font-size: 13px; line-height: 1.85; }
  .hero-actions { margin-top: 25px; }
  .hero-actions .button { font-size: 13px; min-height: 50px; }
  .hero-note { font-size: 11px; margin-top: 14px; }
  .hero-visual { max-width: 500px; border-radius: 15px; }
  .visual-heading { padding: 21px 22px 0; }
  .visual-wordmark { font-size: 9px; }
  .visual-caption { font-size: 9px; }
  .visual-footer { padding: 15px 19px; font-size: 9px; }
  .hero-bottom { gap: 9px; padding-block: 20px; }
  .hero-bottom > div { flex-direction: column; gap: 7px; font-size: 10px; }
  .hero-bottom .icon { width: 21px; height: 21px; }
  .section { padding-block: 64px; }
  h2 { font-size: 29px; line-height: 1.45; }
  .eyebrow { font-size: 10px; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 18px; margin-bottom: 29px; }
  .section-description { font-size: 14px; }
  .service-grid { grid-template-columns: 1fr; gap: 16px; }
  .service-card { padding: 27px; }
  .service-card-top { margin-bottom: 21px; }
  .service-icon { width: 47px; height: 47px; border-radius: 11px; }
  .service-category { font-size: 9px; letter-spacing: .1em; }
  .service-card h3 { font-size: 24px; }
  .service-card > p:not(.service-category) { font-size: 14px; }
  .service-points { font-size: 13px; margin-block: 21px 23px; }
  .equipment-tabs { gap: 8px; margin-bottom: 25px; }
  .equipment-tab { flex-direction: column; font-size: 15px; padding: 10px 7px; border-radius: 16px; }
  .equipment-tab > span { font-size: 10px; }
  .lineup-heading h3 { font-size: 18px; }
  .lineup-heading p { font-size: 12px; }
  .lineup-count { display: none; }
  .equipment-grid { gap: 16px; }
  .equipment-card { padding-inline: 20px; }
  .equipment-name h4 { font-size: 21px; }
  .equipment-footer { flex-direction: column; align-items: flex-start; gap: 15px; }
  .monthly-layout, .about-layout, .faq-layout, .contact-inner { grid-template-columns: 1fr; gap: 35px; }
  .monthly-copy > .section-description { margin-top: 19px; }
  .monthly-principles { gap: 20px; margin-top: 27px; }
  .monthly-card { padding: 29px 25px; }
  .monthly-card h3 { font-size: 25px; }
  .monthly-card-header { margin-bottom: 22px; }
  .plan-items > div { flex-direction: row; align-items: center; padding-block: 17px; }
  .monthly-card .button { font-size: 13px; }
  .about-section { padding-block: 61px; }
  .about-section h2 { font-size: 29px; }
  .about-layout { gap: 30px; }
  .about-name { font-size: 17px; margin-bottom: 14px; }
  .about-copy p { font-size: 13px; }
  .faq-layout > div > .section-description { margin-top: 14px; }
  .faq-list summary { padding-block: 22px; font-size: 14px; line-height: 1.8; }
  .faq-list details > p { margin-right: 8px; font-size: 13px; }
  .contact-section { padding-block: 59px 44px; }
  .contact-inner { gap: 29px; }
  .contact-heading > p:last-child { margin-top: 17px; font-size: 13px; }
  a.contact-card, .email-link { padding: 22px; gap: 16px; }
  .contact-card strong { font-size: 23px; }
  .email-link strong { font-size: clamp(16px, 4.7vw, 22px); }
  .contact-icon { flex-basis: 42px; height: 42px; }
  .contact-arrow { width: 18px; height: 18px; }
  .site-footer { padding-block: 28px 24px; }
  .footer-top { gap: 17px; flex-wrap: wrap; padding-bottom: 22px; }
  .footer-top > p { order: 3; width: 100%; font-size: 11px; }
  .footer-bottom { font-size: 10px; padding-top: 20px; gap: 14px; }
  .footer-bottom > div { column-gap: 14px; }
  .footer-bottom strong { width: 100%; margin-bottom: 2px; }
}

@media (max-width: 540px) {
  .equipment-grid { grid-template-columns: minmax(0, 1fr); }
  .equipment-card { padding: 23px 27px 17px; }
  .equipment-figure { height: 150px; }
  .equipment-specs dt { font-size: 13px; }
  .equipment-specs dd { font-size: 15px; }
}

@media (max-width: 360px) {
  .container { width: calc(100% - 32px); }
  .brand-korean { display: none; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .button { width: 100%; }
  .hero-detail { font-size: 12px; }
  .visual-heading { padding-inline: 15px; }
  .visual-footer { padding-inline: 13px; font-size: 8px; }
  .visual-footer-mark { gap: 3px; }
  .service-card { padding: 24px; }
  a.contact-card, .email-link { padding: 20px 16px; gap: 10px; }
  .contact-card strong { font-size: 20px; }
  .email-link strong { font-size: 16px; }
  .contact-icon { flex-basis: 34px; height: 34px; }
  .contact-arrow { width: 14px; }
  .monthly-card { padding-inline: 20px; }
  .plan-items dt { font-size: 13px; }
  .plan-items dd { padding-inline: 8px; font-size: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .button:hover, .service-card:hover { transform: none; }
}