:root { --ink: #0b1a2b; --muted: #667080; --paper: #f4f7fa; --blue: #2155d6; --line: #06c755; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font-family: Arial, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif; }
a { color: inherit; text-decoration: none; }
button, summary, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
.section { padding: 120px clamp(22px, 6vw, 92px); }
.section-heading h2, .products h2, .guide h2, .faq h2 { margin: 0; font-size: clamp(38px, 4.4vw, 64px); line-height: 1.15; letter-spacing: -.055em; }
h2 em { color: var(--blue); font-style: normal; }
.section-kicker { margin: 0 0 22px; color: var(--blue); font-size: 10px; line-height: 1; letter-spacing: .2em; font-weight: 900; }
.section-kicker.light { color: #86a7ff; }

.site-header { position: relative; z-index: 10; height: 82px; max-width: 1420px; margin: 0 auto; padding: 0 clamp(22px, 5vw, 76px); display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; font-size: 13px; letter-spacing: .13em; font-weight: 500; }
.brand b { font-weight: 800; }
.brand-mark { display: grid; place-items: center; width: 36px; height: 36px; color: white; background: var(--blue); border-radius: 10px 10px 10px 3px; font-weight: 800; font-size: 18px; }
nav { display: flex; gap: 34px; margin-left: auto; margin-right: 46px; }
nav a { color: #536070; font-size: 12px; font-weight: 700; }
nav a:hover { color: var(--blue); }
.header-cta { padding: 10px 17px; color: white; background: var(--line); border-radius: 999px; font-size: 13px; font-weight: 800; }
.header-cta span { display: none; }
.header-cta.is-locked { border: 0; color: #e6f0e8; background: #66836f; cursor: wait; }

.hero { min-height: calc(100vh - 82px); max-width: 1420px; margin: 0 auto; padding: clamp(28px, 5vw, 74px) clamp(22px, 5vw, 76px) 54px; display: grid; grid-template-columns: 1.02fr .98fr; gap: clamp(48px, 7vw, 108px); align-items: center; overflow: hidden; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 24px; color: var(--blue); font-size: 11px; letter-spacing: .18em; font-weight: 800; }
.eyebrow span { width: 27px; height: 2px; background: var(--blue); }
h1 { margin: 0; font-size: clamp(42px, 5.2vw, 78px); line-height: 1.08; letter-spacing: -.055em; font-weight: 820; }
h1 em { color: var(--blue); font-style: normal; }
.kinetic-headline span { display: block; opacity: 0; transform: translateY(28px); animation: headline-in .72s cubic-bezier(.2,.8,.2,1) forwards; }
.kinetic-headline span:nth-child(2) { animation-delay: .12s; }
.kinetic-headline span:nth-child(3) { animation-delay: .24s; }
.hero-lead { max-width: 530px; margin: 29px 0 0; color: var(--muted); font-size: clamp(16px, 1.35vw, 19px); line-height: 1.8; word-break: keep-all; }
.hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 34px; }
.line-button { min-height: 58px; padding: 8px 20px 8px 9px; display: inline-flex; align-items: center; gap: 13px; background: var(--line); color: white; border-radius: 10px; box-shadow: 0 13px 30px rgba(6,199,85,.22); font-size: 15px; font-weight: 800; transition: transform .2s, box-shadow .2s; }
.line-button:hover { transform: translateY(-2px); box-shadow: 0 16px 35px rgba(6,199,85,.3); }
.line-button.is-locked { border: 0; color: #f5faf6; background: #688b73; box-shadow: none; cursor: wait; }
.line-button.is-locked:hover { transform: none; box-shadow: none; }
.line-button.is-locked .line-bubble { color: #688b73; font-size: 10px; }
.line-button .arrow { margin-left: 7px; font-size: 20px; font-weight: 400; }
.line-bubble { display: grid; place-items: center; width: 42px; height: 42px; color: var(--line); background: white; border-radius: 9px; font-size: 9px; font-weight: 900; }
.text-link { font-size: 13px; font-weight: 800; border-bottom: 1px solid #cbd3dd; padding-bottom: 4px; }
.text-link span { margin-left: 8px; color: var(--blue); }
.hero-points { display: flex; gap: 25px; padding: 0; margin: 48px 0 0; list-style: none; color: #3b4654; font-size: 12px; font-weight: 700; }
.hero-points li { display: flex; align-items: center; gap: 8px; }
.hero-points span { color: var(--blue); font-size: 10px; }
.hero-visual { position: relative; min-width: 0; padding: 0 28px 38px 0; }
.hero-visual::before { content: ''; position: absolute; inset: 11% 0 0 18%; background: #e9efff; border-radius: 32px 6px 32px 6px; }
.image-frame { position: relative; z-index: 1; width: 100%; aspect-ratio: .94; overflow: hidden; border-radius: 4px 44px 4px 44px; box-shadow: 0 32px 80px rgba(11,26,43,.15); }
.image-frame > img { width: 100%; height: 100%; display: block; }
.image-frame img { object-fit: cover; animation: hero-zoom 11s ease-in-out infinite alternate; }
.scan-sweep { position: absolute; z-index: 2; inset: -35% -70%; background: linear-gradient(105deg, transparent 42%, rgba(122,167,255,.04) 46%, rgba(255,255,255,.38) 50%, rgba(122,167,255,.06) 54%, transparent 58%); transform: translateX(-38%) rotate(6deg); animation: scan-sweep 5.8s ease-in-out infinite; }
.focus-corners { position: absolute; z-index: 3; inset: 22px; }
.focus-corners i { position: absolute; width: 28px; height: 28px; border-color: rgba(255,255,255,.78); border-style: solid; }
.focus-corners i:nth-child(1) { left: 0; top: 0; border-width: 2px 0 0 2px; }
.focus-corners i:nth-child(2) { right: 0; top: 0; border-width: 2px 2px 0 0; }
.focus-corners i:nth-child(3) { right: 0; bottom: 0; border-width: 0 2px 2px 0; }
.focus-corners i:nth-child(4) { left: 0; bottom: 0; border-width: 0 0 2px 2px; }
.molecule-field { position: absolute; z-index: 2; inset: -22px -12px 0 -25px; pointer-events: none; }
.molecule-field i { position: absolute; width: 10px; height: 10px; background: #3c6ce7; border: 3px solid white; border-radius: 50%; box-shadow: 0 0 0 1px rgba(33,85,214,.25), 0 7px 18px rgba(33,85,214,.3); animation: molecule-float 4.6s ease-in-out infinite; }
.molecule-field i:nth-child(1) { left: 6%; top: 15%; }
.molecule-field i:nth-child(2) { right: 7%; top: 7%; animation-delay: -.9s; }
.molecule-field i:nth-child(3) { right: 0; top: 48%; animation-delay: -1.8s; }
.molecule-field i:nth-child(4) { left: 10%; bottom: 13%; animation-delay: -2.6s; }
.molecule-field i:nth-child(5) { right: 17%; bottom: 2%; animation-delay: -3.4s; }
.stock-card { position: absolute; z-index: 2; left: -35px; bottom: 0; display: flex; align-items: center; gap: 13px; min-width: 235px; padding: 17px 20px; background: white; border: 1px solid #e5eaf0; box-shadow: 0 18px 50px rgba(11,26,43,.14); }
.stock-card small { display: block; color: #8b95a3; font-size: 8px; letter-spacing: .16em; }
.stock-card strong { display: block; margin-top: 4px; font-size: 13px; }
.pulse { width: 10px; height: 10px; background: var(--line); border-radius: 50%; box-shadow: 0 0 0 6px rgba(6,199,85,.12); }
.vertical-note { position: absolute; z-index: 2; right: 1px; top: 23%; margin: 0; color: #657185; font-size: 8px; letter-spacing: .18em; writing-mode: vertical-rl; }
.disclaimer-strip { padding: 16px 22px; color: #d6deea; background: var(--ink); text-align: center; font-size: 11px; line-height: 1.6; }
.disclaimer-strip span { margin-right: 15px; color: #7fa2ff; font-weight: 900; letter-spacing: .12em; }
.motion-ticker { display: flex; overflow: hidden; color: white; background: var(--blue); border-top: 1px solid rgba(255,255,255,.15); border-bottom: 1px solid rgba(255,255,255,.15); }
.motion-ticker > div { flex: none; min-width: 100%; padding: 15px 0; display: flex; align-items: center; justify-content: space-around; gap: 30px; animation: ticker-run 17s linear infinite; }
.motion-ticker span { font-size: 9px; letter-spacing: .17em; font-weight: 800; }
.motion-ticker b { color: #8eabff; font-size: 8px; }

.about { max-width: 1420px; margin: 0 auto; display: grid; grid-template-columns: .74fr 1.26fr; gap: 8vw; }
.section-intro { max-width: 650px; margin: 32px 0 44px; color: var(--muted); font-size: 16px; line-height: 1.8; word-break: keep-all; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.feature-card { position: relative; min-height: 300px; padding: 32px 25px; border: 1px solid #e3e8ee; }
.feature-card + .feature-card { border-left: 0; }
.feature-number { color: #a5afbc; font-size: 9px; letter-spacing: .15em; }
.feature-icon { width: 48px; height: 48px; margin: 42px 0 32px; border: 7px solid #eaf0fd; border-radius: 50%; box-shadow: inset 0 0 0 2px var(--blue); }
.feature-card:nth-child(2) .feature-icon { border-radius: 4px; transform: rotate(45deg); }
.feature-card:nth-child(3) .feature-icon { width: 54px; border-radius: 50% 50% 8px 50%; }
.feature-card h3 { margin: 0 0 13px; font-size: 17px; }
.feature-card p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.75; word-break: keep-all; }

.products { color: white; background: var(--ink); }
.products-head { max-width: 1236px; margin: 0 auto 62px; display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; }
.products h2 em, .guide h2 em { color: #83a3ff; }
.products-head > p { max-width: 380px; margin: 0 0 3px; color: #9daaba; font-size: 13px; line-height: 1.8; }
.photo-grid { max-width: 1236px; margin: 0 auto; display: grid; grid-template-columns: 1.55fr .72fr; grid-template-rows: repeat(2, minmax(260px, 29vw)); gap: 15px; }
.photo-grid figure { position: relative; margin: 0; overflow: hidden; background: #172a40; }
.photo-grid .photo-main { grid-row: 1 / 3; }
.photo-grid img { width: 100%; height: 100%; display: block; object-fit: cover; transition: transform .6s; }
.photo-grid figure:hover img { transform: scale(1.035); }
.photo-grid figcaption { position: absolute; inset: auto 0 0; z-index: 2; padding: 55px 24px 20px; color: white; background: linear-gradient(transparent, rgba(4,13,24,.78)); font-size: 9px; letter-spacing: .16em; font-weight: 800; }
.photo-grid figcaption span { margin-right: 12px; color: #94adf5; }
.product-cta { max-width: 1236px; margin: 15px auto 0; padding: 31px 35px; display: flex; justify-content: space-between; align-items: center; gap: 25px; background: #142942; }
.product-cta p { display: flex; flex-direction: column; gap: 7px; margin: 0; }
.product-cta strong { font-size: 17px; }
.product-cta p span { color: #8f9eb0; font-size: 12px; }
.line-button-dark { box-shadow: none; }

.media { max-width: 1420px; margin: 0 auto; }
.centered { text-align: center; }
.centered > p:last-child { margin: 24px 0 0; color: var(--muted); font-size: 14px; }
.video-grid { margin-top: 58px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.video-card { position: relative; aspect-ratio: 9/14; overflow: hidden; background: #e8edf3; }
.video-card:nth-child(even) { transform: translateY(26px); }
.video-card video { width: 100%; height: 100%; display: block; object-fit: cover; }
.video-card > span { position: absolute; right: 13px; top: 13px; width: 35px; height: 35px; display: grid; place-items: center; color: white; background: rgba(11,26,43,.72); border-radius: 50%; font-size: 9px; }

.guide { display: grid; grid-template-columns: .85fr 1.15fr; gap: 9vw; color: white; background: var(--blue); }
.guide-copy { max-width: 520px; justify-self: end; }
.guide-copy > p:not(.section-kicker) { margin: 27px 0 35px; color: #ccdaff; font-size: 14px; line-height: 1.7; }
.steps { margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.22); }
.steps li { min-height: 145px; display: grid; grid-template-columns: 90px 1fr 40px; align-items: center; gap: 20px; border-bottom: 1px solid rgba(255,255,255,.22); }
.steps li > span { color: #b5c8ff; font-size: 9px; letter-spacing: .15em; }
.steps strong { display: block; margin-bottom: 11px; font-size: 18px; }
.steps p { margin: 0; color: #c7d5ff; font-size: 12px; line-height: 1.65; }
.steps b { display: grid; place-items: center; width: 34px; height: 34px; color: white; border: 1px solid rgba(255,255,255,.35); border-radius: 50%; font-size: 16px; font-weight: 400; }

.faq { max-width: 1280px; margin: 0 auto; display: grid; grid-template-columns: .75fr 1.25fr; gap: 8vw; }
.faq-head > p:last-child { max-width: 300px; margin: 26px 0 0; color: var(--muted); font-size: 13px; line-height: 1.75; }
.faq-list { border-top: 2px solid var(--ink); }
details { border-bottom: 1px solid #dfe4ea; }
summary { min-height: 84px; display: grid; grid-template-columns: 42px 1fr 30px; align-items: center; gap: 13px; cursor: pointer; list-style: none; font-size: 15px; font-weight: 800; }
summary::-webkit-details-marker { display: none; }
summary span { color: var(--blue); font-size: 9px; }
summary b { display: grid; place-items: center; font-size: 18px; font-weight: 400; transition: transform .2s; }
details[open] summary b { transform: rotate(45deg); }
details > p { margin: -6px 30px 27px 55px; color: var(--muted); font-size: 13px; line-height: 1.75; word-break: keep-all; }

.final-cta { position: relative; min-height: 590px; padding: 105px 24px; overflow: hidden; display: flex; flex-direction: column; align-items: center; justify-content: center; color: white; background: #08182a; text-align: center; }
.final-cta h2 { position: relative; z-index: 1; margin: 0; font-size: clamp(40px, 5vw, 68px); line-height: 1.15; letter-spacing: -.055em; }
.final-cta-content { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; }
.final-cta-content > p { margin: 0 0 24px; color: #80a2ff; font-size: 10px; letter-spacing: .2em; font-weight: 800; }
.cta-sub { position: relative; z-index: 1; margin: 26px 0 35px; color: #9eabb9; font-size: 13px; }
.final-cta .line-button { position: relative; z-index: 1; }
.cta-orbit { position: absolute; border: 1px solid rgba(83,126,244,.2); border-radius: 50%; }
.orbit-one { width: 600px; height: 600px; }
.orbit-two { width: 880px; height: 350px; transform: rotate(-12deg); }
.final-cta::before, .final-cta::after { content: ''; position: absolute; width: 9px; height: 9px; background: #3c70f4; border-radius: 50%; box-shadow: 0 0 25px #4b76ef; }
.final-cta::before { left: 20%; top: 30%; }
.final-cta::after { right: 22%; bottom: 24%; }

footer { min-height: 190px; padding: 50px clamp(22px, 6vw, 92px); display: grid; grid-template-columns: 1fr 1.1fr auto; align-items: center; gap: 40px; color: #8792a0; background: #06111e; border-top: 1px solid #172536; }
.footer-brand { color: white; }
footer p { margin: 0; font-size: 10px; line-height: 1.8; }
footer > span { font-size: 8px; letter-spacing: .1em; }
.floating-line { position: fixed; z-index: 20; right: 22px; bottom: 22px; width: 74px; height: 74px; display: flex; flex-direction: column; align-items: center; justify-content: center; color: white; background: var(--line); border: 5px solid white; border-radius: 50%; box-shadow: 0 10px 35px rgba(7,26,44,.22); }
.floating-line span { font-size: 9px; font-weight: 900; }
.floating-line b { margin-top: 3px; font-size: 11px; }
.floating-line.is-locked { color: #eff5f0; background: #688b73; cursor: wait; }
.floating-line.is-locked span { font-size: 13px; }

.engagement-guide { position: fixed; z-index: 30; left: 22px; bottom: 22px; width: 244px; padding: 14px 15px 12px; color: white; background: rgba(11,26,43,.94); border: 1px solid rgba(255,255,255,.13); border-radius: 13px; box-shadow: 0 14px 36px rgba(6,17,30,.22); backdrop-filter: blur(12px); }
.engagement-copy { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.engagement-copy span { color: #8cacf9; font-size: 7px; letter-spacing: .13em; font-weight: 900; }
.engagement-copy strong { font-size: 11px; }
.engagement-track { height: 3px; margin-top: 11px; overflow: hidden; background: rgba(255,255,255,.13); border-radius: 999px; }
.engagement-track i { display: block; height: 100%; background: #5c86f4; border-radius: inherit; transition: width .25s linear; }
.engagement-guide.is-ready { background: rgba(5,112,51,.95); }
.engagement-guide.is-ready .engagement-copy span { color: #bbf4d0; }
.engagement-guide.is-ready .engagement-track i { background: #7df0a8; }

.page-motion-progress { position: fixed; z-index: 60; left: 0; right: 0; top: 0; height: 3px; background: rgba(33,85,214,.08); pointer-events: none; }
.page-motion-progress i { display: block; width: 100%; height: 100%; background: linear-gradient(90deg, var(--blue), #6990ff, var(--line)); transform: scaleX(0); transform-origin: left center; will-change: transform; }

.motion-ready [data-reveal] { opacity: 0; transform: translateY(34px); transition: opacity .72s ease, transform .82s cubic-bezier(.2,.8,.2,1); }
.motion-ready [data-reveal="left"] { transform: translateX(-38px); }
.motion-ready [data-reveal="right"] { transform: translateX(38px); }
.motion-ready [data-reveal="scale"] { transform: scale(.94); }
.motion-ready [data-reveal].in-view { opacity: 1; transform: none; }
.motion-ready .feature-card:nth-child(2), .motion-ready .video-card:nth-child(2), .motion-ready .steps li:nth-child(2) { transition-delay: .1s; }
.motion-ready .feature-card:nth-child(3), .motion-ready .video-card:nth-child(3), .motion-ready .steps li:nth-child(3) { transition-delay: .2s; }
.motion-ready .video-card:nth-child(4) { transition-delay: .3s; }

@keyframes headline-in {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes hero-zoom {
  from { transform: scale(1.01); }
  to { transform: scale(1.075); }
}
@keyframes scan-sweep {
  0%, 28% { transform: translateX(-42%) rotate(6deg); opacity: 0; }
  43% { opacity: 1; }
  68%, 100% { transform: translateX(42%) rotate(6deg); opacity: 0; }
}
@keyframes molecule-float {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(0, -12px, 0); }
}
@keyframes ticker-run {
  to { transform: translateX(-100%); }
}

@media (max-width: 1000px) {
  nav { display: none; }
  .about, .faq { grid-template-columns: 1fr; }
  .section-intro { margin-top: 25px; }
  .guide { grid-template-columns: 1fr; }
  .guide-copy { max-width: 650px; justify-self: start; }
  footer { grid-template-columns: 1fr 1fr; }
  footer > span { grid-column: 1 / 3; }
}
@media (max-width: 900px) {
  .site-header { height: 70px; }
  .hero { min-height: auto; grid-template-columns: 1fr; gap: 44px; padding-top: 42px; }
  .hero-copy { max-width: 680px; }
  .hero-visual { width: min(100%, 650px); margin: 0 auto; padding-left: 22px; }
  .stock-card { left: 0; }
  .products-head { align-items: flex-start; flex-direction: column; }
  .photo-grid { grid-template-columns: 1fr 1fr; grid-template-rows: minmax(390px, 70vw) minmax(270px, 45vw); }
  .photo-grid .photo-main { grid-column: 1 / 3; grid-row: auto; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .video-card:nth-child(even) { transform: none; }
}
@media (max-width: 660px) {
  .section { padding-top: 86px; padding-bottom: 86px; }
  .brand { font-size: 11px; }
  .brand-mark { width: 32px; height: 32px; }
  .header-cta { padding: 10px; }
  .header-cta span { display: inline; }
  h1 { font-size: 43px; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 20px; }
  .line-button { width: 100%; justify-content: space-between; }
  .text-link { align-self: flex-start; }
  .hero-points { gap: 12px; justify-content: space-between; }
  .hero-points li { flex-direction: column; align-items: flex-start; gap: 3px; }
  .hero-visual { padding: 0 14px 42px 14px; }
  .stock-card { left: 0; min-width: 218px; }
  .disclaimer-strip span { display: block; margin: 0 0 3px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: 235px; }
  .feature-card + .feature-card { border-left: 1px solid #e3e8ee; border-top: 0; }
  .feature-icon { margin: 31px 0 23px; }
  .photo-grid { display: flex; flex-direction: column; }
  .photo-grid figure { min-height: 390px; }
  .photo-grid figure:not(.photo-main) { min-height: 310px; }
  .product-cta { align-items: stretch; flex-direction: column; padding: 25px; }
  .video-grid { gap: 8px; }
  .steps li { grid-template-columns: 75px 1fr 30px; gap: 10px; }
  .faq { gap: 50px; }
  summary { min-height: 76px; grid-template-columns: 30px 1fr 25px; font-size: 14px; }
  details > p { margin-left: 43px; }
  .final-cta { min-height: 540px; }
  .cta-sub { max-width: 300px; line-height: 1.7; }
  footer { grid-template-columns: 1fr; }
  footer > span { grid-column: auto; }
  .floating-line { right: 14px; bottom: 14px; width: 66px; height: 66px; }
  .engagement-guide { left: 14px; right: 14px; bottom: 91px; width: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
  .kinetic-headline span, .image-frame img, .scan-sweep, .molecule-field i, .motion-ticker > div { animation: none !important; }
  .kinetic-headline span { opacity: 1; transform: none; }
  .motion-ready [data-reveal] { opacity: 1; transform: none; }
}