@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+KR:wght@500;600;700&display=swap');
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css');

:root {
  --ef-bg: #F4F2EA;
  --ef-bg-soft: #EDF1E8;
  --ef-surface: #FFFFFF;
  --ef-ink: #18251D;
  --ef-muted: #667168;
  --ef-line: #D8DED5;
  --ef-primary: #1E4A2A;
  --ef-primary-strong: #14351E;
  --ef-primary-soft: #E2EADF;
  --ef-accent: #A8BC63;
  --ef-accent-soft: #E9EED1;
  --ef-warm: #B28A4A;
  --ef-warm-soft: #EEE4D4;
  --ef-dark: #102719;
  --ef-white: #FFFFFF;
  --ef-overlay: rgba(7, 24, 14, 0.64);
  --ef-overlay-soft: rgba(7, 24, 14, 0.42);
  --ef-shadow: rgba(16, 39, 25, 0.12);
  --ef-shadow-strong: rgba(16, 39, 25, 0.2);
  --ef-focus: #D6A64D;
  --ef-danger: #A23A2A;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ef-bg);
  color: var(--ef-ink);
  font-family: 'Pretendard', 'Noto Sans KR', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: 0;
  overflow-x: hidden;
}

body.ef-menu-open {
  overflow: hidden;
}

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

button,
input,
select,
textarea {
  font: inherit;
  letter-spacing: 0;
}

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

button {
  cursor: pointer;
}

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

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  letter-spacing: 0;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 40px);
}

.ef-skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 14px;
  background: var(--ef-surface);
  color: var(--ef-primary);
  border: 2px solid var(--ef-primary);
  transform: translateY(-150%);
}

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

:focus-visible {
  outline: 3px solid var(--ef-focus);
  outline-offset: 3px;
}

.ef-header {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: 72px;
  background: var(--ef-surface);
  border-bottom: 1px solid var(--ef-line);
}

.ef-header__inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.ef-logo {
  display: inline-flex;
  align-items: center;
  min-width: 164px;
  height: 44px;
}

.ef-logo img {
  width: 172px;
  height: auto;
}

.ef-nav {
  display: flex;
  align-items: center;
  gap: 25px;
}

.ef-nav a {
  position: relative;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--ef-muted);
  font-size: 14px;
  font-weight: 700;
}

.ef-nav a:not(.ef-button)::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: 5px;
  left: 0;
  height: 2px;
  background: var(--ef-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.ef-nav a:hover::after,
.ef-nav a:focus-visible::after {
  transform: scaleX(1);
}

.ef-menu-button {
  width: 44px;
  height: 44px;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 1px solid var(--ef-line);
  border-radius: 8px;
  background: var(--ef-surface);
  color: var(--ef-ink);
}

.ef-mobile-nav {
  display: none;
}

.ef-button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.25;
  text-align: center;
  transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.ef-button:hover {
  transform: translateY(-2px);
}

.ef-button--primary {
  background: var(--ef-primary);
  color: var(--ef-white);
}

.ef-button--primary:hover {
  background: var(--ef-primary-strong);
}

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

.ef-button--outline {
  border-color: var(--ef-primary);
  background: transparent;
  color: var(--ef-primary);
}

.ef-button--outline-light {
  border-color: var(--ef-white);
  background: transparent;
  color: var(--ef-white);
}

.ef-button svg,
.ef-icon svg {
  width: 19px;
  height: 19px;
  stroke-width: 1.9;
}

.ef-eyebrow {
  margin-bottom: 15px;
  color: var(--ef-primary);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.ef-eyebrow--light {
  color: var(--ef-accent);
}

.ef-section {
  padding-block: 104px;
}

.ef-section--white {
  background: var(--ef-surface);
}

.ef-section--soft {
  background: var(--ef-bg-soft);
}

.ef-section--dark {
  background: var(--ef-dark);
  color: var(--ef-white);
}

.ef-section__head {
  max-width: 760px;
  margin-bottom: 48px;
}

.ef-section__head--center {
  margin-inline: auto;
  text-align: center;
}

.ef-section__head h2 {
  margin-bottom: 18px;
  font-size: 46px;
  line-height: 1.18;
  font-weight: 800;
}

.ef-section__head p {
  margin-bottom: 0;
  color: var(--ef-muted);
  font-size: 18px;
}

.ef-section--dark .ef-section__head p {
  color: var(--ef-primary-soft);
}

.ef-hero {
  position: relative;
  min-height: 720px;
  display: flex;
  align-items: flex-end;
  isolation: isolate;
  overflow: hidden;
  background-position: center;
  background-size: cover;
}

.ef-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--ef-overlay);
}

.ef-hero .container {
  padding-block: 120px 92px;
}

.ef-hero__copy {
  max-width: 780px;
  color: var(--ef-white);
}

.ef-hero__brand {
  margin-bottom: 12px;
  color: var(--ef-accent);
  font-size: 15px;
  font-weight: 800;
}

.ef-hero h1 {
  margin-bottom: 24px;
  font-size: 66px;
  line-height: 1.08;
  font-weight: 800;
}

.ef-hero__lead {
  max-width: 670px;
  margin-bottom: 34px;
  color: var(--ef-primary-soft);
  font-size: 20px;
  line-height: 1.65;
}

.ef-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.ef-hero__meta {
  margin-top: 56px;
  padding-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  border-top: 1px solid var(--ef-overlay-soft);
}

.ef-hero__meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ef-primary-soft);
  font-size: 14px;
  font-weight: 700;
}

.ef-system-ribbon {
  position: relative;
  z-index: 2;
  margin-top: -1px;
  background: var(--ef-primary);
  color: var(--ef-white);
}

.ef-system-ribbon__grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.ef-system-ribbon a {
  min-height: 96px;
  padding: 20px 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-right: 1px solid var(--ef-overlay-soft);
  color: var(--ef-primary-soft);
  font-size: 14px;
  font-weight: 700;
  text-align: center;
}

.ef-system-ribbon a:last-child {
  border-right: 0;
}

.ef-system-ribbon a:hover {
  background: var(--ef-primary-strong);
  color: var(--ef-white);
}

.ef-split {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  align-items: center;
  gap: 72px;
}

.ef-split--reverse .ef-split__media {
  order: 2;
}

.ef-split__media {
  position: relative;
  min-height: 520px;
}

.ef-split__media img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 24px 50px var(--ef-shadow);
}

.ef-split__media-note {
  position: absolute;
  right: 20px;
  bottom: 20px;
  max-width: 250px;
  padding: 16px 18px;
  border-radius: 8px;
  background: var(--ef-primary);
  color: var(--ef-white);
  font-size: 14px;
  font-weight: 700;
}

.ef-split__content h2 {
  margin-bottom: 22px;
  font-size: 46px;
  line-height: 1.18;
}

.ef-split__content > p {
  margin-bottom: 30px;
  color: var(--ef-muted);
  font-size: 18px;
}

.ef-check-list {
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
}

.ef-check-list li {
  min-height: 42px;
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding-block: 9px;
  border-bottom: 1px solid var(--ef-line);
  font-weight: 700;
}

.ef-check-list svg {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  margin-top: 2px;
  color: var(--ef-primary);
}

.ef-process {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.ef-process__item {
  position: relative;
  min-height: 270px;
  padding: 30px 26px;
  border: 1px solid var(--ef-line);
  border-radius: 16px;
  background: var(--ef-surface);
}

.ef-process__step {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 38px;
  border-radius: 50%;
  background: var(--ef-primary);
  color: var(--ef-white);
  font-size: 14px;
  font-weight: 800;
}

.ef-process__item h3 {
  margin-bottom: 12px;
  font-size: 23px;
}

.ef-process__item p {
  margin-bottom: 0;
  color: var(--ef-muted);
  font-size: 15px;
}

.ef-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.ef-card {
  min-height: 310px;
  padding: 30px;
  border: 1px solid var(--ef-line);
  border-radius: 18px;
  background: var(--ef-surface);
  box-shadow: 0 14px 30px var(--ef-shadow);
}

.ef-card__icon,
.ef-icon {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 32px;
  border-radius: 12px;
  background: var(--ef-primary-soft);
  color: var(--ef-primary);
}

.ef-card h3 {
  margin-bottom: 13px;
  font-size: 24px;
  line-height: 1.25;
}

.ef-card p {
  margin-bottom: 0;
  color: var(--ef-muted);
}

.ef-card__link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 22px;
  color: var(--ef-primary);
  font-weight: 800;
}

.ef-media-band {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  isolation: isolate;
  background-position: center;
  background-size: cover;
}

.ef-media-band::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--ef-overlay);
}

.ef-media-band__copy {
  max-width: 650px;
  padding-block: 90px;
  color: var(--ef-white);
}

.ef-media-band h2 {
  margin-bottom: 20px;
  font-size: 48px;
  line-height: 1.18;
}

.ef-media-band p {
  margin-bottom: 30px;
  color: var(--ef-primary-soft);
  font-size: 18px;
}

.ef-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.ef-feature {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  min-height: 220px;
  overflow: hidden;
  border: 1px solid var(--ef-line);
  border-radius: 16px;
  background: var(--ef-surface);
}

.ef-feature img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ef-feature__copy {
  padding: 28px;
}

.ef-feature__copy h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.ef-feature__copy p {
  margin-bottom: 0;
  color: var(--ef-muted);
  font-size: 15px;
}

.ef-product-stage {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  background: var(--ef-surface);
  box-shadow: 0 22px 50px var(--ef-shadow);
}

.ef-product-stage img {
  width: 100%;
  min-height: 520px;
  object-fit: cover;
}

.ef-product-stage__copy {
  position: absolute;
  right: 34px;
  bottom: 34px;
  max-width: 390px;
  padding: 24px;
  border-radius: 8px;
  background: var(--ef-dark);
  color: var(--ef-white);
}

.ef-product-stage__copy h3 {
  margin-bottom: 10px;
  font-size: 25px;
}

.ef-product-stage__copy p {
  margin-bottom: 0;
  color: var(--ef-primary-soft);
  font-size: 15px;
}

.ef-proof-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.ef-proof-item {
  min-height: 220px;
  padding: 28px;
  border: 1px solid var(--ef-overlay-soft);
  border-radius: 12px;
}

.ef-proof-item strong {
  display: block;
  margin-bottom: 18px;
  color: var(--ef-accent);
  font-size: 15px;
}

.ef-proof-item h3 {
  margin-bottom: 10px;
  font-size: 24px;
}

.ef-proof-item p {
  margin-bottom: 0;
  color: var(--ef-primary-soft);
}

.ef-tabs {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 28px;
}

.ef-tab-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ef-tab {
  min-height: 58px;
  padding: 13px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--ef-line);
  border-radius: 8px;
  background: var(--ef-surface);
  color: var(--ef-muted);
  font-weight: 800;
  text-align: left;
}

.ef-tab[aria-selected='true'] {
  border-color: var(--ef-primary);
  background: var(--ef-primary);
  color: var(--ef-white);
}

.ef-tab-panel {
  min-height: 360px;
  padding: 38px;
  border: 1px solid var(--ef-line);
  border-radius: 12px;
  background: var(--ef-surface);
}

.ef-tab-panel[hidden] {
  display: none;
}

.ef-tab-panel h3 {
  margin-bottom: 14px;
  font-size: 30px;
}

.ef-tab-panel > p {
  color: var(--ef-muted);
  font-size: 17px;
}

.ef-tab-panel__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 30px;
}

.ef-tab-panel__item {
  min-height: 120px;
  padding: 18px;
  border-radius: 8px;
  background: var(--ef-bg-soft);
}

.ef-tab-panel__item strong {
  display: block;
  margin-bottom: 6px;
  color: var(--ef-primary);
}

.ef-tab-panel__item span {
  color: var(--ef-muted);
  font-size: 14px;
}

.ef-module-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.ef-module {
  min-height: 245px;
  padding: 25px;
  border: 1px solid var(--ef-line);
  border-radius: 8px;
  background: var(--ef-surface);
}

.ef-module .ef-icon {
  margin-bottom: 24px;
  border-radius: 8px;
}

.ef-module h3 {
  margin-bottom: 10px;
  font-size: 21px;
}

.ef-module p {
  margin-bottom: 0;
  color: var(--ef-muted);
  font-size: 14px;
}

.ef-step-table {
  border-top: 1px solid var(--ef-line);
}

.ef-step-row {
  display: grid;
  grid-template-columns: 96px 220px minmax(0, 1fr) 180px;
  align-items: center;
  min-height: 112px;
  border-bottom: 1px solid var(--ef-line);
}

.ef-step-row__num {
  color: var(--ef-primary);
  font-size: 15px;
  font-weight: 800;
}

.ef-step-row h3 {
  margin: 0;
  font-size: 21px;
}

.ef-step-row p {
  margin: 0;
  padding-right: 28px;
  color: var(--ef-muted);
}

.ef-step-row strong {
  color: var(--ef-primary);
  font-size: 14px;
  text-align: right;
}

.ef-ops-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.ef-ops-item {
  min-height: 220px;
  padding: 26px;
  border-left: 4px solid var(--ef-accent);
  background: var(--ef-surface);
}

.ef-ops-item h3 {
  margin-bottom: 11px;
  font-size: 22px;
}

.ef-ops-item p {
  margin-bottom: 0;
  color: var(--ef-muted);
}

.ef-faq {
  max-width: 880px;
  margin-inline: auto;
}

.ef-faq details {
  border-bottom: 1px solid var(--ef-line);
}

.ef-faq summary {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  cursor: pointer;
  font-size: 18px;
  font-weight: 800;
  list-style: none;
}

.ef-faq summary::-webkit-details-marker {
  display: none;
}

.ef-faq summary::after {
  content: '+';
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border: 1px solid var(--ef-line);
  border-radius: 50%;
  color: var(--ef-primary);
  font-size: 21px;
}

.ef-faq details[open] summary::after {
  content: '−';
}

.ef-faq details p {
  max-width: 760px;
  padding: 0 0 24px;
  color: var(--ef-muted);
}

.ef-contact {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 70px;
  align-items: start;
}

.ef-contact__copy h2 {
  margin-bottom: 20px;
  font-size: 48px;
  line-height: 1.16;
}

.ef-contact__copy > p {
  color: var(--ef-primary-soft);
  font-size: 18px;
}

.ef-contact__points {
  margin-top: 32px;
  display: grid;
  gap: 12px;
}

.ef-contact__point {
  display: flex;
  gap: 12px;
  color: var(--ef-primary-soft);
  font-size: 15px;
}

.ef-contact__point svg {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  margin-top: 2px;
  color: var(--ef-accent);
}

.ef-form {
  padding: 34px;
  border-radius: 12px;
  background: var(--ef-surface);
  color: var(--ef-ink);
}

.ef-form__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.ef-field--full {
  grid-column: 1 / -1;
}

.ef-field label {
  display: block;
  margin-bottom: 7px;
  font-size: 14px;
  font-weight: 800;
}

.ef-field input,
.ef-field select,
.ef-field textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 13px;
  border: 1px solid var(--ef-line);
  border-radius: 7px;
  background: var(--ef-surface);
  color: var(--ef-ink);
}

.ef-field textarea {
  min-height: 112px;
  resize: vertical;
}

.ef-consent {
  grid-column: 1 / -1;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--ef-muted);
  font-size: 13px;
}

.ef-consent input {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  margin-top: 2px;
}

.ef-form .ef-button {
  grid-column: 1 / -1;
  width: 100%;
}

.ef-form-status {
  grid-column: 1 / -1;
  min-height: 24px;
  margin: 0;
  color: var(--ef-primary);
  font-size: 14px;
  font-weight: 700;
}

.ef-footer {
  padding-block: 54px 34px;
  background: var(--ef-primary-strong);
  color: var(--ef-primary-soft);
}

.ef-footer__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--ef-overlay-soft);
}

.ef-footer__brand img {
  width: 180px;
  filter: brightness(0) invert(1);
}

.ef-footer__brand p {
  max-width: 430px;
  margin: 18px 0 0;
  color: var(--ef-primary-soft);
}

.ef-footer__nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(130px, 1fr));
  gap: 10px 28px;
}

.ef-footer__nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  font-size: 14px;
}

.ef-footer__bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--ef-muted);
  font-size: 12px;
}

.ef-option-switch {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 80;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--ef-line);
  border-radius: 8px;
  background: var(--ef-surface);
  color: var(--ef-primary);
  box-shadow: 0 12px 30px var(--ef-shadow-strong);
  font-size: 13px;
  font-weight: 800;
}

/* Option A */
.ef-option-a .ef-hero {
  background-image: url('assets/enforet-system-bg.png');
}

.ef-option-a h1,
.ef-option-a h2,
.ef-option-a .ef-media-band h2 {
  font-family: 'Noto Serif KR', serif;
  font-weight: 600;
}

.ef-option-a .ef-card:nth-child(2) {
  transform: translateY(28px);
}

.ef-option-a .ef-card:nth-child(3) {
  transform: translateY(56px);
}

.ef-option-a .ef-media-band {
  margin-top: 52px;
  background-image: url('assets/academy-studio.jpg');
}

/* Option B */
.ef-option-b {
  background: var(--ef-surface);
}

.ef-option-b .ef-hero {
  min-height: 650px;
  align-items: center;
  background-image: url('assets/enforet-headspa.png');
  background-position: center;
}

.ef-option-b .ef-hero::before {
  background: var(--ef-overlay-soft);
}

.ef-option-b .ef-hero .container {
  padding-block: 100px;
}

.ef-option-b .ef-hero__copy {
  max-width: 720px;
}

.ef-option-b .ef-hero h1 {
  font-size: 58px;
}

.ef-option-b .ef-section {
  padding-block: 88px;
}

.ef-option-b .ef-section__head h2 {
  font-size: 42px;
}

.ef-option-b .ef-card,
.ef-option-b .ef-process__item,
.ef-option-b .ef-feature,
.ef-option-b .ef-product-stage {
  border-radius: 8px;
  box-shadow: none;
}

.ef-option-b .ef-system-ribbon__grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.ef-option-b .ef-system-ribbon a {
  min-height: 72px;
  justify-content: flex-start;
  padding-inline: 22px;
}

.ef-mobile-cta {
  display: none;
}

/* Comparison index */
.ef-index {
  background: var(--ef-bg);
}

.ef-index-hero {
  padding-block: 70px 52px;
  background: var(--ef-dark);
  color: var(--ef-white);
}

.ef-index-hero__top {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: flex-end;
}

.ef-index-hero h1 {
  max-width: 780px;
  margin-bottom: 18px;
  font-family: 'Noto Serif KR', serif;
  font-size: 52px;
  line-height: 1.15;
}

.ef-index-hero p {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--ef-primary-soft);
  font-size: 18px;
}

.ef-recommendation {
  min-width: 260px;
  padding: 18px;
  border-left: 4px solid var(--ef-accent);
  background: var(--ef-primary-strong);
}

.ef-recommendation strong {
  display: block;
  color: var(--ef-accent);
  font-size: 13px;
}

.ef-recommendation span {
  display: block;
  margin-top: 5px;
  font-size: 18px;
  font-weight: 800;
}

.ef-concept-list {
  display: grid;
  gap: 30px;
}

.ef-concept {
  overflow: hidden;
  border: 1px solid var(--ef-line);
  border-radius: 8px;
  background: var(--ef-surface);
}

.ef-concept__bar {
  min-height: 98px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 26px;
  border-bottom: 1px solid var(--ef-line);
}

.ef-concept__meta {
  display: flex;
  align-items: center;
  gap: 18px;
}

.ef-concept__letter {
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--ef-primary);
  color: var(--ef-white);
  font-weight: 800;
}

.ef-concept h2 {
  margin: 0 0 3px;
  font-size: 24px;
}

.ef-concept p {
  margin: 0;
  color: var(--ef-muted);
  font-size: 14px;
}

.ef-concept__frame {
  position: relative;
  height: 560px;
  overflow: hidden;
  background: var(--ef-bg-soft);
}

.ef-concept__frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
  pointer-events: none;
}

.ef-compare-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--ef-surface);
}

.ef-compare-table th,
.ef-compare-table td {
  padding: 18px;
  border: 1px solid var(--ef-line);
  text-align: left;
}

.ef-compare-table th {
  background: var(--ef-primary-soft);
  color: var(--ef-primary);
  font-size: 14px;
}

@media (max-width: 1024px) {
  .ef-nav {
    display: none;
  }

  .ef-menu-button {
    display: inline-flex;
  }

  .ef-mobile-nav {
    position: fixed;
    inset: 72px 0 0;
    z-index: 95;
    padding: 20px;
    overflow-y: auto;
    background: var(--ef-surface);
  }

  .ef-mobile-nav[data-open='true'] {
    display: block;
  }

  .ef-mobile-nav a {
    min-height: 54px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--ef-line);
    color: var(--ef-ink);
    font-weight: 800;
  }

  .ef-mobile-nav .ef-button {
    margin-top: 18px;
    color: var(--ef-white);
  }

  .ef-hero h1 {
    font-size: 54px;
  }

  .ef-section {
    padding-block: 84px;
  }

  .ef-section__head h2,
  .ef-split__content h2,
  .ef-media-band h2,
  .ef-contact__copy h2 {
    font-size: 39px;
  }

  .ef-system-ribbon__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .ef-system-ribbon a:nth-child(3) {
    border-right: 0;
  }

  .ef-system-ribbon a:nth-child(-n+3) {
    border-bottom: 1px solid var(--ef-overlay-soft);
  }

  .ef-split {
    gap: 42px;
  }

  .ef-process {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ef-cards,
  .ef-proof-grid,
  .ef-module-grid,
  .ef-ops-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ef-option-a .ef-card:nth-child(2),
  .ef-option-a .ef-card:nth-child(3) {
    transform: none;
  }

  .ef-feature {
    grid-template-columns: 145px minmax(0, 1fr);
  }

  .ef-step-row {
    grid-template-columns: 70px 180px minmax(0, 1fr);
  }

  .ef-step-row strong {
    grid-column: 3;
    padding-bottom: 16px;
    text-align: left;
  }

  .ef-contact {
    gap: 40px;
  }

  .ef-index-hero__top {
    align-items: flex-start;
    flex-direction: column;
  }

  .ef-recommendation {
    width: 100%;
  }
}

@media (max-width: 767px) {
  body {
    font-size: 15px;
  }

  .ef-header,
  .ef-header__inner {
    min-height: 64px;
  }

  .ef-logo {
    min-width: 142px;
  }

  .ef-logo img {
    width: 150px;
  }

  .ef-mobile-nav {
    inset: 64px 0 0;
  }

  .ef-hero,
  .ef-option-b .ef-hero {
    min-height: 690px;
  }

  .ef-hero .container,
  .ef-option-b .ef-hero .container {
    padding-block: 88px 58px;
  }

  .ef-hero h1,
  .ef-option-b .ef-hero h1 {
    font-size: 42px;
    line-height: 1.12;
  }

  .ef-hero__lead {
    font-size: 17px;
  }

  .ef-hero__actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .ef-hero__actions .ef-button {
    width: 100%;
  }

  .ef-hero__meta {
    margin-top: 34px;
    gap: 12px;
  }

  .ef-hero__meta span {
    width: 100%;
  }

  .ef-system-ribbon__grid,
  .ef-option-b .ef-system-ribbon__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ef-system-ribbon a,
  .ef-option-b .ef-system-ribbon a {
    min-height: 72px;
    justify-content: center;
    padding: 14px 8px;
    font-size: 12px;
  }

  .ef-system-ribbon a:nth-child(3) {
    border-right: 1px solid var(--ef-overlay-soft);
  }

  .ef-system-ribbon a:nth-child(2n) {
    border-right: 0;
  }

  .ef-system-ribbon a:nth-child(-n+4) {
    border-bottom: 1px solid var(--ef-overlay-soft);
  }

  .ef-section,
  .ef-option-b .ef-section {
    padding-block: 70px;
  }

  .ef-section__head {
    margin-bottom: 34px;
  }

  .ef-section__head h2,
  .ef-split__content h2,
  .ef-media-band h2,
  .ef-contact__copy h2,
  .ef-option-b .ef-section__head h2 {
    font-size: 32px;
  }

  .ef-section__head p,
  .ef-split__content > p,
  .ef-media-band p,
  .ef-contact__copy > p {
    font-size: 16px;
  }

  .ef-split,
  .ef-contact {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .ef-split--reverse .ef-split__media {
    order: 0;
  }

  .ef-split__media,
  .ef-split__media img {
    min-height: 0;
    height: 390px;
  }

  .ef-split__media-note {
    right: 12px;
    bottom: 12px;
    max-width: 220px;
  }

  .ef-process,
  .ef-cards,
  .ef-feature-grid,
  .ef-proof-grid,
  .ef-module-grid,
  .ef-ops-grid {
    grid-template-columns: 1fr;
  }

  .ef-process__item,
  .ef-card,
  .ef-module,
  .ef-ops-item {
    min-height: 0;
  }

  .ef-card__icon,
  .ef-icon {
    margin-bottom: 22px;
  }

  .ef-feature {
    grid-template-columns: 1fr;
  }

  .ef-feature img {
    height: 240px;
  }

  .ef-media-band {
    min-height: 570px;
  }

  .ef-product-stage img {
    min-height: 460px;
  }

  .ef-product-stage__copy {
    position: relative;
    right: auto;
    bottom: auto;
    max-width: none;
    border-radius: 0;
  }

  .ef-tabs {
    grid-template-columns: 1fr;
  }

  .ef-tab-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .ef-tab {
    min-height: 64px;
    justify-content: center;
    padding: 10px 6px;
    font-size: 12px;
    text-align: center;
  }

  .ef-tab svg {
    display: none;
  }

  .ef-tab-panel {
    min-height: 0;
    padding: 26px 20px;
  }

  .ef-tab-panel h3 {
    font-size: 25px;
  }

  .ef-tab-panel__grid {
    grid-template-columns: 1fr;
  }

  .ef-step-row {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 5px 12px;
    padding-block: 22px;
  }

  .ef-step-row h3 {
    font-size: 19px;
  }

  .ef-step-row p,
  .ef-step-row strong {
    grid-column: 2;
    padding: 0;
  }

  .ef-form {
    padding: 24px 18px;
  }

  .ef-form__grid {
    grid-template-columns: 1fr;
  }

  .ef-field--full,
  .ef-consent,
  .ef-form .ef-button,
  .ef-form-status {
    grid-column: 1;
  }

  .ef-footer__top,
  .ef-footer__bottom {
    flex-direction: column;
  }

  .ef-footer__nav {
    width: 100%;
  }

  .ef-option-switch {
    right: 12px;
    bottom: 70px;
  }

  .ef-mobile-cta {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 75;
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: var(--ef-surface);
    box-shadow: 0 -8px 24px var(--ef-shadow);
  }

  .ef-mobile-cta a {
    min-height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    color: var(--ef-primary);
    font-size: 14px;
    font-weight: 800;
  }

  .ef-mobile-cta a:last-child {
    background: var(--ef-primary);
    color: var(--ef-white);
  }

  .ef-index-hero {
    padding-block: 52px 42px;
  }

  .ef-index-hero h1 {
    font-size: 38px;
  }

  .ef-concept__bar,
  .ef-concept__meta {
    align-items: flex-start;
    flex-direction: column;
  }

  .ef-concept__bar .ef-button {
    width: 100%;
  }

  .ef-concept__frame {
    height: 460px;
  }

  .ef-compare-table {
    min-width: 680px;
  }

  .ef-table-scroll {
    overflow-x: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}