/* ========== LNB (sticky sub tabs) ========== */
.sub-tabs {
  position: sticky;
  top: var(--header-height);
  z-index: 40;
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: var(--header-height);
  padding: 0;
  background: #fff;
  border-bottom: 1px solid #e5e1d6;
}
.sub-tabs a {
  position: relative;
  font-size: 13px;
  letter-spacing: 3px;
  color: #b8b1a2;
  padding: 14px 22px;
  transition:
    color 180ms ease,
    background 180ms ease,
    font-size 180ms ease,
    font-weight 180ms ease;
}
.sub-tabs a:hover {
  color: var(--color-brand-beige);
  font-size: 15px;
  font-weight: 700;
}
.sub-tabs a.active {
  color: var(--color-brand-beige);
  font-weight: 600;
  background: #efe6d0;
}
.sub-tabs a.active:hover {
  font-size: 15px;
  font-weight: 700;
}

/* ========== HERO SECTION ========== */
.about-hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 40px 60px;
  display: grid;
  grid-template-columns: minmax(420px, 0.98fr) minmax(520px, 1.02fr);
  gap: 56px;
  align-items: center;
}
.hero-left {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
}
.keywords {
  display: flex;
  justify-content: center;
  gap: 14px;
  width: 100%;
  margin-bottom: 38px;
}
.keywords img {
  width: 88px;
  height: 88px;
  object-fit: contain;
}
.hero-title-kr {
  font-size: 36px;
  font-weight: 300;
  color: var(--color-text-heading);
  line-height: 1.45;
  letter-spacing: 0;
  margin: 0;
  max-width: 100%;
  white-space: nowrap;
}
.hero-right img {
  width: 100%;
  height: auto;
  display: block;
}

/* ========== PHILOSOPHY SECTION ========== */
.philosophy-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 40px 120px;
}
.philosophy-pillar {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  column-gap: 60px;
  align-items: start;
  padding: 46px 0;
  border-top: 1px solid #e5e1d6;
}
.philosophy-pillar:last-child {
  border-bottom: 1px solid #e5e1d6;
}
.pillar-heading {
  text-align: right;
}
.pillar-label {
  font-size: 11px;
  letter-spacing: 4px;
  color: #9a9488;
  margin: 0;
  text-transform: uppercase;
  text-align: right;
}
.pillar-title {
  font-size: 30px;
  line-height: 1.2;
  font-weight: 500;
  color: var(--color-text-heading);
  letter-spacing: 0;
  margin: 6px 0 0;
  text-align: right;
}
.pillar-desc {
  margin: 0;
  font-size: 17px;
  line-height: 1.85;
  color: #555;
}

/* ========== SIGNATURE (BRAND IDENTITY) ========== */
.brand-section {
  background: var(--color-bg-cream);
  padding: 100px 24px;
}
.brand-inner {
  max-width: 1320px;
  margin: 0 auto;
}
.brand-grid {
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  gap: 40px;
  align-items: stretch;
}
.brand-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
}
.brand-logos-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 40px;
  width: 100%;
  align-items: start;
}
.brand-divider {
  width: 1px;
  background: #bfb8a7;
  opacity: 0.6;
  min-height: 280px;
  justify-self: center;
  align-self: center;
}
.brand-logo-item {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.brand-logo-item .logo-label {
  font-size: 13px;
  font-weight: 700;
  color: #5a5448;
  letter-spacing: 2px;
  margin-bottom: 20px;
  line-height: 1.55;
  min-height: calc(1.55em * 2);
}
.brand-logo-item .logo-display {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 0;
  min-height: 140px;
}
.brand-logo-item .logo-display img {
  max-width: 320px;
  width: 100%;
  height: auto;
  display: block;
}
.signature-group .brand-logo-item:nth-child(2) .logo-display img {
  max-width: 180px;
}
.brand-logo-item .logo-display.symbol img {
  max-width: 130px;
}
.brand-desc {
  font-size: 14px;
  font-weight: 500;
  color: #5a5448;
  line-height: 1.9;
  text-align: center;
  margin: 0;
  margin-top: auto;
  padding-top: 48px;
  min-height: calc(1.9em * 2 + 48px);
  width: 100%;
}
.symbol-group .brand-desc {
  min-width: 0;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}

/* ========== COLOR SECTION ========== */
.color-section {
  padding: 0;
}
.color-bands {
  margin: 0;
}
.color-band {
  text-align: center;
}
.color-band.beige {
  background: var(--color-bg-cream);
  color: #3c3733;
  padding: 40px 20px;
  border-top: 2px solid #faf7ee;
}
.color-band.grey {
  background: var(--color-brand-beige);
  color: #fff;
  padding: 60px 20px 100px;
}
.color-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  opacity: 0.75;
  margin-bottom: 6px;
}
.color-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 3px;
}
.color-band.grey .color-desc {
  text-align: center;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.92);
  line-height: 2;
  max-width: 960px;
  margin: 48px auto 0;
  padding: 0 20px;
}
.color-band.grey .color-desc p {
  margin: 0;
}
.color-band.grey .color-desc p + p {
  margin-top: 4px;
}

/* ========== BRANCHES ========== */
.branches-section {
  background: var(--color-bg-cream);
  padding: 80px 40px;
}
.branches-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
.branch-item {
  text-align: center;
}
.branch-item h3 {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-brand-beige);
  margin-bottom: 24px;
}
.branch-address {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-brand-beige);
  margin-bottom: 8px;
  line-height: 1.5;
}
.branch-sub {
  font-size: 13px;
  color: var(--color-brand-beige);
  margin-bottom: 24px;
}
.branch-map {
  display: block;
  margin: 0 auto 24px;
}
.branch-map img {
  height: 400px;
  width: auto;
  display: block;
  margin: 0 auto;
}
.branch-hours {
  font-size: 13px;
  color: var(--color-brand-beige);
  line-height: 1.8;
  margin-bottom: 8px;
  font-weight: 500;
}
.branch-info {
  font-size: 12px;
  color: var(--color-brand-beige);
  line-height: 1.8;
  font-weight: 600;
}

/* ========== CTA SECTION ========== */
.cta-section {
  background: #fff;
  padding: 90px 40px 120px;
  text-align: center;
}
.cta-title {
  font-size: 26px;
  font-weight: 400;
  color: #8a8275;
  margin: 0 0 14px;
  letter-spacing: 0.5px;
}
.cta-desc {
  font-size: 14px;
  color: #8a8275;
  margin: 0 0 28px;
  line-height: 1.6;
}
.cta-btn {
  display: inline-block;
  padding: 14px 36px;
  background: var(--color-brand-beige);
  color: #fff;
  font-size: 13px;
  letter-spacing: 2px;
  border: none;
  cursor: pointer;
  transition: opacity 0.3s;
}
.cta-btn:hover {
  opacity: 0.85;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 991px) {
  .about-hero {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-left {
    align-items: flex-start;
    text-align: left;
  }
  .keywords {
    justify-content: flex-start;
  }
  .hero-title-kr {
    white-space: normal;
  }
  .philosophy-pillar {
    grid-template-columns: 1fr;
    row-gap: 24px;
  }
  .pillar-heading,
  .pillar-label,
  .pillar-title,
  .pillar-desc {
    text-align: left;
  }
  .pillar-title {
    margin-top: 0;
  }
  .brand-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }
  .brand-divider {
    width: 80%;
    height: 1px;
    min-height: 0;
    justify-self: center;
  }
}
@media (max-width: 767px) {
  .sub-tabs {
    /* 로고(헤더) 아래 공백 확보 — header-height(70) + 추가 여백 */
    margin-top: calc(var(--header-height) + 20px);
  }
  .sub-tabs a {
    font-size: 11px;
    letter-spacing: 2px;
    padding: 10px 14px;
  }
  .sub-tabs a:hover,
  .sub-tabs a.active:hover {
    font-size: 12px;
  }
  .about-hero {
    padding: 30px 20px 40px;
  }
  .hero-title-kr {
    font-size: 24px;
  }
  .philosophy-section {
    padding: 20px 20px 80px;
  }
  .philosophy-pillar {
    padding: 40px 0;
  }
  .pillar-title {
    font-size: 22px;
  }
  .pillar-desc {
    font-size: 14px;
  }
  .brand-section {
    padding: 70px 20px;
  }
  .branches-section {
    padding: 60px 20px;
  }
  .cta-section {
    padding: 70px 20px 90px;
  }
  .color-band.grey {
    padding: 50px 20px 80px;
  }
  .color-band.grey .color-desc {
    margin-top: 32px;
    font-size: 13px;
  }
  .color-name {
    font-size: 18px;
  }
  .branches-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .brand-logos-row {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .brand-desc br {
    display: none;
  }
  .keywords {
    gap: 20px;
  }
  .keywords img {
    width: 70px;
    height: 70px;
  }
  .branch-map img {
    height: 280px;
  }
  .cta-title {
    font-size: 22px;
  }
  .cta-desc {
    font-size: 13px;
  }
  .cta-btn {
    padding: 12px 30px;
    font-size: 12px;
  }
}