/* ==========================================================================
   Business > 라이팅 (Figma 1:6676) — page body only
   Hero/stage: assets/css/sp-common.css + assets/js/sp-hero.js
   Sections: Total Solution / anchor tabs / product list / product details /
   contact us
   ========================================================================== */
.lighting-page {
  --ligh-navy: #002165;
  --ligh-wide: min(1520px, 100% - 2 * clamp(16px, 10.417vw, 200px));
}
/* style.css caps every `section > *` at 1440px + 40px gutters; this page sizes its own containers */
.sp-page.lighting-page section:not(.hero):not(.c-hero) > * {
  max-width: none;
  padding-left: 0;
  padding-right: 0;
}
.sp-page.lighting-page section.ligh-detail:not(.hero) > .ligh-detail-top { max-width: 1440px; margin-left: 0; margin-right: 0; }
/* `.sp-page ul|h2` reset margins (0,1,1) — restate page margins with higher specificity */
.lighting-page .ligh-solution .ligh-pillars { margin-top: clamp(32px, 2.604vw, 50px); }
.lighting-page .ligh-head .ligh-title { margin-top: -4px; }
.sp-page.lighting-page section.ligh-solution:not(.hero) > .sp-container,
.sp-page.lighting-page section.ligh-products:not(.hero) > .sp-container {
  width: min(1600px, 100% - 2 * clamp(16px, 8.333vw, 160px));
}
.sp-page.lighting-page section.ligh-contact:not(.hero) > .ligh-contact-cards { width: min(1440px, 100%); }

/* ---------- Stage headline (1:6751): eyebrow + 56px title + 24px copy ---------- */
.lighting-page .ligh-headline {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: min(1085px, 100% - 32px);
  font-weight: 600;
  font-size: clamp(28px, 2.917vw, 56px);
  letter-spacing: -0.04em;
}
.lighting-page .ligh-headline-eyebrow {
  margin-bottom: 14px;
  font-size: clamp(15px, 1.042vw, 20px);
  font-weight: 500;
}
.lighting-page .ligh-headline small {
  margin-top: clamp(24px, 2.083vw, 40px);
  font-weight: 500;
  font-size: clamp(15px, 1.25vw, 24px);
  line-height: 1.6;
}

.lighting-page .sp-stage-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: #000;
  opacity: var(--ligh-dim2, 0.5);
  pointer-events: none;
}

/* ---------- Shared section head ---------- */
.ligh-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  max-width: 100%;
}
.ligh-eyebrow { font-size: clamp(15px, 1.042vw, 20px); }
.ligh-title {
  margin-top: -4px;
  font-weight: 600;
  font-size: clamp(30px, 2.917vw, 56px);
  line-height: 1.3;
  letter-spacing: -0.04em;
  color: #111;
  word-break: keep-all;
}
.ligh-desc {
  font-weight: 500;
  font-size: clamp(16px, 1.042vw, 20px);
  line-height: 1.6;
  letter-spacing: -0.03em;
  color: #333;
  word-break: keep-all;
}

/* ---------- 3) Total Solution (1:6759) ---------- */
.ligh-solution {
  position: relative;
  isolation: isolate;
  min-height: clamp(560px, 48.958vw, 940px);
  padding: clamp(64px, 9.74vw, 187px) 0 clamp(64px, 9.74vw, 187px);
  background: #03091a url('../../img/business/lighting/hero.jpg') center / cover no-repeat;
  color: #fff;
}
.ligh-solution::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(0, 0, 0, 0.7);
}
.ligh-solution .ligh-title,
.ligh-solution .ligh-desc { color: #fff; }
.ligh-pillars {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 1.354vw, 26px);
  margin-top: clamp(32px, 2.604vw, 50px);
  list-style: none;
}
.ligh-pillar {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 32px;
  min-height: clamp(300px, 18.594vw, 357px);
  padding: clamp(28px, 2.083vw, 40px);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.95);
  color: #111;
}
.ligh-pillar-en {
  font-family: var(--sp-font-en);
  font-weight: 500;
  font-size: clamp(14px, 0.833vw, 16px);
  line-height: 1.3;
  letter-spacing: -0.03em;
  color: var(--ligh-navy);
}
.ligh-pillar-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.ligh-pillar-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  margin-bottom: 16px;
}
.ligh-pillar-icon img { width: auto; height: auto; max-width: 80px; max-height: 80px; }
.ligh-pillar h3 {
  font-weight: 600;
  font-size: clamp(24px, 1.771vw, 34px);
  line-height: 1.3;
  letter-spacing: -0.04em;
  color: #111;
  word-break: keep-all;
}
.ligh-pillar p:not(.ligh-pillar-en) {
  margin-top: 10px;
  font-size: clamp(15px, 0.9375vw, 18px);
  line-height: 1.4;
  letter-spacing: -0.03em;
  color: #666;
  word-break: keep-all;
}

/* ---------- 4) Anchor tabs (1:6816) ---------- */
.ligh-tabs {
  position: sticky;
  /* follows the sub page header (sp-motion.js sets the offset while the header is shown) */
  top: var(--sp-header-offset, 0px);
  transition: top 0.35s ease;
  z-index: 20;
  background: #fff;
  border-bottom: 1px solid #ddd;
}
.ligh-tabs-inner {
  display: flex;
  gap: 20px;
  width: min(1600px, 100% - 2 * clamp(16px, 8.333vw, 160px));
  margin-inline: auto;
  padding-top: 12px;
  overflow-x: auto;
  scrollbar-width: none;
}
.ligh-tabs-inner::-webkit-scrollbar { display: none; }
.ligh-tab {
  flex: 1 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 10px;
  margin-bottom: -1px;
  border-bottom: 2px solid transparent;
  font-weight: 500;
  font-size: clamp(16px, 1.042vw, 20px);
  line-height: 1.6;
  letter-spacing: -0.03em;
  color: #aaa;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s;
}
.ligh-tab:hover { color: var(--ligh-navy); }
.ligh-tab.is-active {
  border-bottom-color: var(--ligh-navy);
  font-weight: 700;
  color: var(--ligh-navy);
}

/* ---------- 5) Product list (1:6817) ---------- */
.ligh-products {
  padding: clamp(64px, 5.99vw, 115px) 0 clamp(80px, 8.333vw, 160px);
  scroll-margin-top: 80px;
}
.ligh-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 760px));
  justify-content: space-between;
  gap: 60px clamp(24px, 4.167vw, 80px);
  margin-top: clamp(40px, 3.125vw, 60px);
}
.ligh-card {
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding: clamp(20px, 2.083vw, 40px) clamp(20px, 2.083vw, 40px) clamp(20px, 1.667vw, 32px);
  border: 1px solid transparent;
  border-radius: 16px;
  transition: border-color 0.25s;
}
.ligh-card-thumb {
  aspect-ratio: 680 / 400;
  border-radius: 8px;
  overflow: hidden;
  background: #aeaeae;
}
.ligh-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.ligh-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 30px;
}
.ligh-card-text {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-inline: 10px;
}
.ligh-card-name {
  font-weight: 600;
  font-size: clamp(26px, 1.875vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: #111;
  word-break: keep-all;
}
.ligh-card-en {
  margin-left: 2px;
  font-family: var(--sp-font-en);
  font-weight: 400;
  font-size: 14px;
  line-height: 1.6;
  letter-spacing: -0.03em;
  color: #999;
  white-space: nowrap;
}
.ligh-card-desc {
  min-height: 2.8em;
  font-size: clamp(16px, 0.9375vw, 18px);
  line-height: 1.4;
  letter-spacing: -0.03em;
  color: #666;
  word-break: keep-all;
}
.ligh-card-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 16px;
  border-radius: 8px;
  background: #ebedf2;
  font-weight: 500;
  font-size: clamp(17px, 1.146vw, 22px);
  line-height: 1.3;
  letter-spacing: -0.03em;
  color: rgba(0, 0, 0, 0.6);
  text-decoration: none;
  transition: background-color 0.25s, color 0.25s;
}
.ligh-card:hover,
.ligh-card:focus-within,
.ligh-card.is-highlight { border-color: var(--ligh-navy); }
.ligh-card:hover .ligh-card-thumb img { transform: scale(1.03); }
.ligh-card:hover .ligh-card-btn,
.ligh-card:focus-within .ligh-card-btn,
.ligh-card.is-highlight .ligh-card-btn {
  background: var(--ligh-navy);
  color: #fff;
}
.ligh-empty {
  grid-column: 1 / -1;
  padding: 60px 0;
  text-align: center;
  color: #888;
}

/* ---------- 6) Product details (1:6858) ---------- */
.ligh-details {
  position: relative;
  overflow: hidden;
}
.ligh-glow {
  position: absolute;
  z-index: 0;
  width: clamp(500px, 65vw, 1250px);
  max-width: none;
  height: auto;
  mix-blend-mode: hard-light;
  pointer-events: none;
}
.ligh-glow--a { top: 0; right: -30%; }
.ligh-glow--b { bottom: 0; left: -10%; }
.ligh-details-list {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: clamp(72px, 6.25vw, 120px);
  width: var(--ligh-wide);
  margin-inline: auto;
}
.ligh-detail {
  display: flex;
  flex-direction: column;
  gap: clamp(40px, 3.125vw, 60px);
  padding-top: clamp(64px, 6.25vw, 120px);
  border-top: 1px solid #ddd;
  scroll-margin-top: 80px;
}
.ligh-detail-top {
  display: grid;
  grid-template-columns: minmax(0, 700fr) minmax(0, 600fr);
  gap: clamp(32px, 7.292vw, 140px);
  align-items: start;
  max-width: 1440px;
}
.ligh-slider {
  position: relative;
  aspect-ratio: 700 / 467;
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}
.ligh-slider-track { position: absolute; inset: 0; }
.ligh-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.45s ease, visibility 0.45s;
}
.ligh-slide.is-active { opacity: 1; visibility: visible; }
.ligh-slide img { width: 100%; height: 100%; object-fit: cover; }
.ligh-slider-nav {
  position: absolute;
  top: 50%;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.2);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transform: translateY(-50%);
  cursor: pointer;
  transition: background-color 0.2s;
}
.ligh-slider-nav:hover { background: rgba(0, 0, 0, 0.4); }
.ligh-slider-nav img { width: 40px; height: 40px; }
.ligh-slider-nav.is-prev { left: 20px; }
.ligh-slider-nav.is-prev img { transform: scaleX(-1); }
.ligh-slider-nav.is-next { right: 20px; }
.ligh-thumbs {
  position: absolute;
  left: 50%;
  bottom: 22px;
  z-index: 2;
  display: flex;
  gap: 8px;
  transform: translateX(-50%);
}
.ligh-thumb {
  width: clamp(72px, 6.25vw, 120px);
  aspect-ratio: 120 / 80;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 4px;
  overflow: hidden;
  background: #aeaeae;
  opacity: 0.7;
  cursor: pointer;
  transition: opacity 0.2s, border-color 0.2s;
}
.ligh-thumb img { width: 100%; height: 100%; object-fit: cover; }
.ligh-thumb:hover { opacity: 1; }
.ligh-thumb.is-active { border-color: var(--ligh-navy); opacity: 1; }
.ligh-detail-copy {
  display: flex;
  flex-direction: column;
  gap: clamp(32px, 3.125vw, 60px);
  padding-top: 14px;
}
.ligh-detail-head {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.ligh-detail-title {
  font-weight: 600;
  font-size: clamp(30px, 2.292vw, 44px);
  line-height: 1.3;
  letter-spacing: -0.04em;
  color: #111;
}
.ligh-detail-sub {
  text-wrap: balance;
  font-weight: 500;
  font-size: clamp(18px, 1.146vw, 22px);
  line-height: 1.4;
  letter-spacing: -0.03em;
  color: #333;
  word-break: keep-all;
}
.ligh-detail-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.ligh-detail-desc {
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.03em;
  color: #666;
  word-break: keep-all;
}
.ligh-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
}
.ligh-chip {
  padding: 4px 12px;
  border: 1px solid #eee;
  border-radius: 999px;
  background: #f5f6f9;
  font-weight: 500;
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: -0.03em;
  color: #2c3c5e;
}
.ligh-spec {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.ligh-spec-title {
  font-weight: 600;
  font-size: clamp(20px, 1.25vw, 24px);
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: #333;
}
.ligh-spec-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}
.ligh-spec-table tr { border-bottom: 1px solid #fff; }
.ligh-spec-table th,
.ligh-spec-table td {
  padding: 18px 20px;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.03em;
  text-align: left;
  vertical-align: middle;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
.ligh-spec-table th {
  width: clamp(160px, 22.917vw, 440px);
  background: #f8f8f8;
  font-weight: 500;
  color: #444;
}
.ligh-spec-table td {
  border-bottom: 1px solid #f8f8f8;
  font-weight: 400;
  color: #666;
}

/* ---------- 7) Contact Us (same pattern as switch / mold) ---------- */
.ligh-contact {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(48px, 9.427vw, 181px);
  min-height: clamp(560px, 44.792vw, 860px);
  margin-top: clamp(72px, 6.25vw, 120px);
  padding: clamp(72px, 7.917vw, 152px) 16px clamp(48px, 6.094vw, 117px);
  overflow: hidden;
  color: #fff;
}
.ligh-contact-bg { position: absolute; inset: 0; }
.ligh-contact-bg img { width: 100%; height: 100%; object-fit: cover; }
.ligh-contact-bg::after { content: ''; position: absolute; inset: 0; background: rgba(0, 0, 0, 0.3); }
.ligh-contact-head {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}
.lighting-page .ligh-contact-title {
  font-family: var(--sp-font-en);
  font-weight: 500;
  font-size: clamp(40px, 3.646vw, 70px);
  line-height: 1.3;
  letter-spacing: -0.03em;
  color: #fff;
}
.lighting-page .ligh-contact-sub {
  color: #fff;
  font-weight: 500;
  font-size: clamp(16px, 1.146vw, 22px);
  line-height: 1.6;
  letter-spacing: -0.03em;
}
.ligh-contact-cards {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(16px, 2.083vw, 40px);
  width: min(1440px, 100%);
  margin-top: auto;
}
.ligh-contact-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 34px 24px 40px 40px;
  border-radius: 10px;
  background: #ebedf1;
  color: var(--ligh-navy);
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}
.ligh-contact-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2); color: var(--ligh-navy); }
.ligh-contact-card--primary,
.ligh-contact-card--primary:hover { background: var(--ligh-navy); color: #fff; }
.ligh-contact-text { display: flex; flex-direction: column; min-width: 0; }
.ligh-contact-ico {
  display: flex;
  align-items: center;
  width: 80px;
  height: 80px;
  margin-bottom: 12px;
}
.ligh-contact-card strong {
  font-weight: 600;
  font-size: clamp(22px, 1.458vw, 28px);
  line-height: 1.3;
  letter-spacing: -0.04em;
}
.ligh-contact-desc {
  margin-top: 6px;
  font-size: clamp(14px, 0.833vw, 16px);
  line-height: 1.6;
  letter-spacing: -0.03em;
  color: rgba(0, 0, 0, 0.7);
  word-break: keep-all;
}
.ligh-contact-card--primary .ligh-contact-desc { color: rgba(255, 255, 255, 0.8); }
.ligh-contact-chev { flex-shrink: 0; width: clamp(40px, 3.125vw, 60px); height: auto; }

/* ---------- Responsive ---------- */
@media (max-width: 1280px) {
  .ligh-pillars { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ligh-detail-top { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}
@media (max-width: 1024px) {
  .ligh-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ligh-detail-top { grid-template-columns: 1fr; }
  .ligh-detail-copy { padding-top: 0; }
  .ligh-tabs-inner { gap: 4px; }
  .ligh-tab { flex: 1 0 auto; padding-inline: 14px; }
  .ligh-contact-cards { grid-template-columns: minmax(0, 1fr); }
  .sp-page.lighting-page section.ligh-contact:not(.hero) > .ligh-contact-cards { width: min(720px, 100%); }
}
@media (max-width: 768px) {
  .ligh-cards { grid-template-columns: 1fr; gap: 24px; }
  .ligh-card { border-color: #e6e8ee; }
  .ligh-pillar { min-height: 0; }
  .ligh-spec-table th { width: 38%; }
  .ligh-spec-table th,
  .ligh-spec-table td { padding: 14px 12px; font-size: 14px; }
}
@media (max-width: 600px) {
  .ligh-pillars { grid-template-columns: 1fr; }
  .ligh-slider-nav { width: 40px; height: 40px; }
  .ligh-slider-nav img { width: 32px; height: 32px; }
  .ligh-slider-nav.is-prev { left: 10px; }
  .ligh-slider-nav.is-next { right: 10px; }
  .ligh-thumbs { bottom: 10px; gap: 6px; }
  .ligh-thumb { width: 56px; }
  .ligh-spec-table,
  .ligh-spec-table tbody,
  .ligh-spec-table tr,
  .ligh-spec-table th,
  .ligh-spec-table td { display: block; width: 100%; }
  .ligh-spec-table th { padding-bottom: 8px; }
  .ligh-spec-table td { padding-top: 10px; }
  .ligh-tab { font-size: 15px; padding: 12px 12px; }
  .ligh-contact-card { padding: 24px 16px 28px 24px; }
  .ligh-contact-ico { width: 56px; height: 56px; }
  .ligh-contact-ico img { transform: scale(0.75); transform-origin: left center; }
}
@media (prefers-reduced-motion: reduce) {
  .ligh-slide,
  .ligh-card-thumb img,
  .ligh-contact-card { transition: none; }
}