@charset "UTF-8";

:root {
  --bk-deep: #00021d;
  --bk-navy: #0f213b;
  --bk-blue: #1f385a;
  --bk-gold: #be8f4b;
  --bk-gold-soft: #e6d2a3;
  --bk-ink: #111827;
  --bk-muted: #68727f;
  --bk-paper: #f6f8fb;
  --bk-line: #dde3ec;
  --bk-white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--bk-ink);
  font-family: "Noto Sans KR", "Malgun Gothic", Arial, sans-serif;
  line-height: 1.65;
  background: var(--bk-white);
  word-break: keep-all;
}

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

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

button {
  font: inherit;
}

.bk-page {
  min-width: 320px;
  overflow: hidden;
}

.bk-inner {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.bk-header {
  position: fixed;
  z-index: 30;
  top: 0;
  left: 0;
  width: 100%;
  border-bottom: 1px solid rgba(15, 33, 59, 0.1);
  background: rgba(255, 255, 255, 0.93);
  backdrop-filter: blur(12px);
}

.bk-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 96px;
  gap: 24px;
}

.bk-logo {
  display: inline-flex;
  align-items: center;
  width: 128px;
  flex: 0 0 auto;
}

.bk-logo img {
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.bk-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--bk-navy);
  font-size: 15px;
  font-weight: 700;
}

.bk-nav a {
  position: relative;
  padding: 8px 0;
}

.bk-nav a::after {
  position: absolute;
  right: 0;
  bottom: 3px;
  left: 0;
  height: 2px;
  background: var(--bk-gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
  content: "";
}

.bk-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.bk-menu-button {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--bk-line);
  border-radius: 8px;
  background: var(--bk-white);
  color: var(--bk-navy);
  cursor: pointer;
}

.bk-menu-button span,
.bk-menu-button::before,
.bk-menu-button::after {
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  content: "";
}

.bk-menu-button {
  flex-direction: column;
  gap: 5px;
}

.bk-hero {
  position: relative;
  overflow: hidden;
  min-height: 760px;
  padding: 132px 0 86px;
  color: var(--bk-white);
  background: #101624;
}

.bk-hero::before {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(0, 2, 29, 0.86), rgba(15, 33, 59, 0.48) 48%, rgba(255, 255, 255, 0.12));
  content: "";
}

.bk-hero::after {
  position: absolute;
  inset: -18px;
  z-index: 0;
  background: url("../img/main_visual01.jpg") center/cover no-repeat;
  transform: scale(1.08);
  animation: bkHeroImage 12s ease-out forwards;
  content: "";
}

.bk-hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  align-items: end;
  min-height: 542px;
  gap: 56px;
}

.bk-eyebrow {
  margin: 0 0 18px;
  color: var(--bk-gold-soft);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.bk-hero h1 {
  max-width: 760px;
  margin: 0;
  font-family: "Gilroy-bold", "Noto Sans KR", sans-serif;
  font-size: 62px;
  line-height: 1.16;
  letter-spacing: 0;
}

.bk-hero__copy {
  max-width: 650px;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 20px;
  font-weight: 400;
}

.bk-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 38px;
}

.bk-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 800;
  white-space: nowrap;
}

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

.bk-button--ghost {
  border-color: rgba(255, 255, 255, 0.45);
  color: var(--bk-white);
}

.bk-facts {
  display: grid;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
}

.bk-hero .bk-eyebrow,
.bk-hero h1,
.bk-hero__copy,
.bk-hero__actions,
.bk-facts {
  opacity: 0;
  transform: translateY(20px);
  animation: bkHeroFadeUp 0.8s ease forwards;
}

.bk-hero .bk-eyebrow {
  animation-delay: 0.15s;
}

.bk-hero h1 {
  animation-delay: 0.3s;
}

.bk-hero__copy {
  animation-delay: 0.45s;
}

.bk-hero__actions {
  animation-delay: 0.6s;
}

.bk-facts {
  animation-delay: 0.75s;
}

@keyframes bkHeroImage {
  0% {
    transform: scale(1.08) translate3d(0, 0, 0);
  }
  100% {
    transform: scale(1) translate3d(-10px, 0, 0);
  }
}

@keyframes bkHeroFadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .bk-hero::after,
  .bk-hero .bk-eyebrow,
  .bk-hero h1,
  .bk-hero__copy,
  .bk-hero__actions,
  .bk-facts {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

.bk-fact {
  padding: 22px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.bk-fact:last-child {
  border-bottom: 0;
}

.bk-fact strong {
  display: block;
  margin-bottom: 5px;
  color: var(--bk-gold-soft);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.bk-fact span {
  display: block;
  color: var(--bk-white);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
}

.bk-section {
  padding: 96px 0;
}

.bk-section--paper {
  background: var(--bk-paper);
}

.bk-section__head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 42px;
}

.bk-section__head h2 {
  margin: 0;
  color: var(--bk-navy);
  font-family: "Gilroy-bold", "Noto Sans KR", sans-serif;
  font-size: 42px;
  line-height: 1.18;
  letter-spacing: 0;
}

.bk-section__head h2 span {
  display: inline-block;
  margin-left: 12px;
  color: var(--bk-gold);
  font-family: "Noto Sans KR", "Malgun Gothic", sans-serif;
  font-size: 18px;
  font-weight: 800;
  vertical-align: middle;
}

.bk-section__head p {
  max-width: 520px;
  margin: 0;
  color: var(--bk-muted);
  font-size: 17px;
}

.bk-about {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: 56px;
}

.bk-about__media {
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.bk-about__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bk-about__text h2 {
  margin: 0 0 24px;
  color: var(--bk-navy);
  font-size: 40px;
  line-height: 1.24;
  letter-spacing: 0;
}

.bk-about__text p {
  margin: 0 0 18px;
  color: #374151;
  font-size: 17px;
}

.bk-sign {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 2px solid var(--bk-gold);
  color: var(--bk-navy);
  font-weight: 800;
}

.bk-vision {
  background: linear-gradient(180deg, #ffffff 0%, #f6f8fb 100%);
  color: var(--bk-ink);
}

.bk-vision__inner {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  align-items: center;
  gap: 44px;
}

.bk-vision__text {
  position: relative;
  padding: 42px 36px;
  border: 1px solid var(--bk-line);
  border-radius: 8px;
  background: var(--bk-white);
  box-shadow: 0 18px 46px rgba(15, 33, 59, 0.08);
}

.bk-vision__text::before {
  position: absolute;
  top: 28px;
  bottom: 28px;
  left: 0;
  width: 4px;
  background: var(--bk-gold);
  content: "";
}

.bk-vision__text .bk-eyebrow {
  color: var(--bk-gold);
}

.bk-vision__text h2 {
  margin: 0 0 20px;
  color: var(--bk-navy);
  font-size: 40px;
  line-height: 1.24;
  letter-spacing: 0;
}

.bk-vision__text p:last-child {
  max-width: 560px;
  margin: 0;
  color: #374151;
  font-size: 18px;
}

.bk-vision__image {
  padding: 34px;
  border: 1px solid var(--bk-line);
  border-radius: 8px;
  background: var(--bk-white);
  box-shadow: 0 22px 54px rgba(15, 33, 59, 0.12);
}

.bk-vision__image img {
  width: 100%;
  max-height: 430px;
  object-fit: contain;
}

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

.bk-stat {
  min-height: 270px;
  padding: 30px 22px;
  border: 1px solid var(--bk-line);
  border-radius: 8px;
  background: var(--bk-white);
  text-align: center;
}

.bk-stat img {
  width: 58px;
  height: 58px;
  object-fit: contain;
  margin: 0 auto 18px;
}

.bk-stat p {
  min-height: 48px;
  margin: 0 0 12px;
  color: var(--bk-navy);
  font-size: 17px;
  font-weight: 800;
  line-height: 1.35;
}

.bk-stat p em {
  display: block;
  color: var(--bk-muted);
  font-size: 12px;
  font-style: normal;
  font-weight: 600;
}

.bk-stat strong {
  display: block;
  min-height: 62px;
  margin-bottom: 12px;
  color: var(--bk-gold);
  font-family: "Gilroy-bold", Arial, sans-serif;
  font-size: 46px;
  line-height: 1.1;
}

.bk-stat span {
  display: block;
  color: var(--bk-muted);
  font-size: 14px;
  line-height: 1.55;
}

.bk-service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.bk-service {
  overflow: hidden;
  border: 1px solid var(--bk-line);
  border-radius: 8px;
  background: var(--bk-white);
}

.bk-service__image {
  aspect-ratio: 16 / 10;
  background: #d9dee7;
}

.bk-service__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bk-service__body {
  padding: 24px;
}

.bk-service__body strong {
  display: block;
  margin-bottom: 10px;
  color: var(--bk-gold);
  font-size: 13px;
  letter-spacing: 0.1em;
}

.bk-service__body h3 {
  margin: 0 0 10px;
  color: var(--bk-navy);
  font-size: 22px;
  line-height: 1.3;
}

.bk-service__body p {
  margin: 0;
  color: var(--bk-muted);
  font-size: 15px;
}

.bk-cert-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.bk-cert-tabs button {
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--bk-line);
  border-radius: 8px;
  background: var(--bk-white);
  color: var(--bk-navy);
  font-weight: 800;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.bk-cert-tabs button.is-active,
.bk-cert-tabs button:hover {
  border-color: var(--bk-gold);
  background: var(--bk-navy);
  color: var(--bk-white);
}

.bk-cert-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.bk-cert-card {
  overflow: hidden;
  border: 1px solid var(--bk-line);
  border-radius: 8px;
  background: var(--bk-white);
  box-shadow: 0 14px 34px rgba(15, 33, 59, 0.06);
}

.bk-cert-card[hidden] {
  display: none;
}

.bk-cert-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: top center;
  background: #edf1f7;
}

.bk-cert-card p {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  margin: 0;
  padding: 12px 14px;
  color: var(--bk-navy);
  font-size: 15px;
  font-weight: 800;
  line-height: 1.35;
  text-align: center;
}

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

.bk-strength__item {
  padding: 30px 28px;
  border-top: 4px solid var(--bk-gold);
  background: var(--bk-white);
}

.bk-strength__item span {
  display: block;
  margin-bottom: 18px;
  color: var(--bk-navy);
  font-family: "Gilroy-bold", Arial, sans-serif;
  font-size: 34px;
  line-height: 1;
}

.bk-strength__item h3 {
  margin: 0 0 12px;
  color: var(--bk-navy);
  font-size: 21px;
}

.bk-strength__item p {
  margin: 0;
  color: var(--bk-muted);
}

.bk-logo-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.bk-logo-grid a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 132px;
  padding: 18px 14px;
  border: 1px solid var(--bk-line);
  border-radius: 8px;
  background: var(--bk-white);
  text-align: center;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.bk-logo-grid a:hover {
  border-color: rgba(190, 143, 75, 0.7);
  box-shadow: 0 14px 30px rgba(15, 33, 59, 0.08);
  transform: translateY(-2px);
}

.bk-logo-grid img {
  width: 100%;
  max-width: 150px;
  max-height: 54px;
  object-fit: contain;
  margin: 0 auto;
}

.bk-logo-grid span {
  display: block;
  width: 100%;
  min-height: 36px;
  margin-top: 12px;
  color: var(--bk-muted);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.45;
}

.bk-logo-grid--partners a {
  min-height: 118px;
}

.bk-logo-grid--partners img {
  max-height: 66px;
}

.bk-contact {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 34px;
}

.bk-contact__info {
  padding: 36px;
  border-radius: 8px;
  background: var(--bk-navy);
  color: var(--bk-white);
}

.bk-contact__info h2 {
  margin: 0 0 24px;
  font-size: 36px;
  line-height: 1.2;
  letter-spacing: 0;
}

.bk-contact__row {
  padding: 18px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.bk-contact__row strong {
  display: block;
  margin-bottom: 5px;
  color: var(--bk-gold-soft);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.bk-contact__row span,
.bk-contact__row a {
  display: block;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
}

.bk-map {
  min-height: 430px;
  overflow: hidden;
  border: 1px solid var(--bk-line);
  border-radius: 8px;
  background: #d9dee7;
}

.bk-map iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 430px;
  border: 0;
}

.bk-footer {
  background: var(--bk-white);
}

.bk-footer__top {
  position: relative;
  background: #02040a;
  color: var(--bk-white);
}

.bk-footer__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 132px;
  gap: 32px;
}

.bk-footer__brand {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 190px;
  min-width: 190px;
  padding: 12px 14px;
  border-radius: 8px;
  background: var(--bk-white);
}

.bk-footer__brand img {
  width: 160px;
}

.bk-footer__info {
  flex: 1;
  min-width: 0;
}

.bk-footer__info p,
.bk-footer__contact p {
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 15px;
  line-height: 1.8;
}

.bk-footer__info em {
  display: inline-block;
  margin: 0 12px;
  color: var(--bk-gold);
  font-style: normal;
}

.bk-footer__copy {
  color: rgba(255, 255, 255, 0.66) !important;
}

.bk-footer__contact {
  display: flex;
  align-items: center;
  gap: 18px;
  white-space: nowrap;
}

.bk-footer__contact span {
  color: var(--bk-gold-soft);
  font-weight: 800;
}

.bk-footer__toplink {
  position: absolute;
  right: 0;
  bottom: -7px;
  width: 46px;
  height: 22px;
  border-radius: 0 0 24px 24px;
  background: #02040a;
}

.bk-footer__toplink::before {
  position: absolute;
  top: 7px;
  left: 50%;
  width: 0;
  height: 0;
  border-right: 7px solid transparent;
  border-bottom: 7px solid rgba(255, 255, 255, 0.72);
  border-left: 7px solid transparent;
  transform: translateX(-50%);
  content: "";
}

.bk-footer__office {
  padding: 28px 0;
  background: var(--bk-white);
}

.bk-footer__office ul {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.bk-footer__office li {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 90px;
  border-right: 1px solid var(--bk-line);
}

.bk-footer__office li:first-child {
  border-left: 1px solid var(--bk-line);
}

.bk-footer__office a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding: 16px;
}

.bk-footer__office img {
  width: 100%;
  max-width: 142px;
  max-height: 52px;
  object-fit: contain;
}

@media (max-width: 960px) {
  .bk-menu-button {
    display: inline-flex;
  }

  .bk-nav {
    position: absolute;
    top: 76px;
    right: 20px;
    left: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 14px;
    border: 1px solid var(--bk-line);
    border-radius: 8px;
    background: var(--bk-white);
    box-shadow: 0 18px 40px rgba(15, 33, 59, 0.14);
  }

  .bk-nav.is-open {
    display: flex;
  }

  .bk-nav a {
    padding: 12px;
  }

  .bk-hero {
    min-height: auto;
    padding: 116px 0 70px;
  }

  .bk-hero__inner,
  .bk-about,
  .bk-vision__inner,
  .bk-contact {
    grid-template-columns: 1fr;
  }

  .bk-hero__inner {
    min-height: 0;
    gap: 42px;
  }

  .bk-hero h1 {
    font-size: 42px;
  }

  .bk-service-grid,
  .bk-cert-grid,
  .bk-strength,
  .bk-stat-grid {
    grid-template-columns: 1fr;
  }

  .bk-logo-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .bk-section__head {
    display: block;
  }

  .bk-section__head h2 {
    margin-bottom: 16px;
  }

  .bk-footer__inner {
    flex-wrap: wrap;
    justify-content: center;
    min-height: 0;
    padding: 28px 0;
    text-align: center;
  }

  .bk-footer__info {
    flex: 1 1 100%;
    order: 3;
  }

  .bk-footer__contact {
    flex: 1 1 100%;
    justify-content: center;
    order: 4;
  }

  .bk-footer__office ul {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .bk-footer__office li:nth-child(4n + 1) {
    border-left: 1px solid var(--bk-line);
  }
}

@media (max-width: 640px) {
  .bk-inner {
    width: min(100% - 28px, 1120px);
  }

  .bk-header__inner {
    min-height: 78px;
  }

  .bk-logo {
    width: 104px;
  }

  .bk-logo img {
    width: 100%;
  }

  .bk-nav {
    top: 78px;
    right: 14px;
    left: 14px;
  }

  .bk-hero {
    padding-top: 116px;
  }

  .bk-hero h1 {
    font-size: 34px;
  }

  .bk-hero__copy {
    font-size: 16px;
  }

  .bk-section {
    padding: 70px 0;
  }

  .bk-section__head h2,
  .bk-about__text h2,
  .bk-vision__text h2,
  .bk-contact__info h2 {
    font-size: 30px;
  }

  .bk-section__head h2 span {
    display: block;
    margin: 8px 0 0;
    font-size: 15px;
  }

  .bk-vision__image {
    padding: 22px;
  }

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

  .bk-cert-tabs button {
    flex: 1 1 calc(50% - 8px);
    padding: 0 10px;
    font-size: 13px;
  }

  .bk-cert-card p {
    font-size: 14px;
  }

  .bk-logo-grid a {
    min-height: 118px;
    padding: 14px 10px;
  }

  .bk-logo-grid img {
    max-height: 46px;
  }

  .bk-logo-grid span {
    font-size: 11px;
  }

  .bk-contact__info {
    padding: 28px 22px;
  }

  .bk-footer__inner {
    display: flex;
    gap: 20px;
  }

  .bk-footer__brand {
    width: 160px;
    min-width: 160px;
    padding: 10px 12px;
  }

  .bk-footer__brand img {
    width: 132px;
  }

  .bk-footer__info p,
  .bk-footer__contact p {
    font-size: 13px;
  }

  .bk-footer__info span {
    display: block;
  }

  .bk-footer__info em {
    display: none;
  }

  .bk-footer__contact {
    display: block;
  }

  .bk-footer__toplink {
    right: 50%;
    transform: translateX(50%);
  }

  .bk-footer__office {
    padding: 20px 0;
  }

  .bk-footer__office ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .bk-footer__office li {
    min-height: 78px;
  }

  .bk-footer__office li:nth-child(odd) {
    border-left: 1px solid var(--bk-line);
  }

  .bk-footer__office a {
    padding: 12px;
  }

  .bk-footer__office img {
    max-width: 124px;
    max-height: 44px;
  }
}

/* ===== 보광환경 추가 스타일 (참고 사이트 톤 유지) ===== */
.bk-hero h1,
.bk-section__head h2,
.bk-stat strong,
.bk-strength__item span,
.bk-contact__info h2 { font-family: "Montserrat", "Noto Sans KR", sans-serif; font-weight: 800; }
.bk-hero h1 { font-size: 56px; }
.bk-logo img { width: 100%; }
.bk-cert-card img { aspect-ratio: 3 / 4; object-fit: cover; object-position: top center; }
.bk-cert-card a { display: block; }
.bk-cert-card p { min-height: 62px; }

/* 제품 */
.bk-product-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.bk-product { overflow: hidden; border: 1px solid var(--bk-line); border-radius: 8px; background: var(--bk-white); }
.bk-product img { width: 100%; aspect-ratio: 364 / 428; object-fit: cover; }
.bk-product div { padding: 14px 16px 16px; text-align: center; }
.bk-product h3 { margin: 0 0 4px; color: var(--bk-navy); font-size: 16px; line-height: 1.3; }
.bk-product span { display: block; color: var(--bk-muted); font-size: 13px; }

/* 경영이념 S.I.R */
.bk-sir { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.bk-sir div { padding: 26px 20px; border: 1px solid var(--bk-line); border-radius: 8px; background: var(--bk-paper); text-align: center; }
.bk-sir strong { display: block; margin: 0 auto 14px; width: 74px; height: 74px; border-radius: 50%; background: var(--bk-navy); color: var(--bk-gold-soft); font-family: "Montserrat", sans-serif; font-size: 34px; font-weight: 800; line-height: 74px; }
.bk-sir h3 { margin: 0 0 8px; color: var(--bk-navy); font-size: 18px; }
.bk-sir p { margin: 0; color: var(--bk-muted); font-size: 14px; line-height: 1.6; }

/* 연혁 */
.bk-history { position: relative; margin: 0; padding: 0 0 0 28px; list-style: none; border-left: 2px solid var(--bk-line); }
.bk-history li { position: relative; display: grid; grid-template-columns: 90px 1fr; gap: 18px; padding: 0 0 26px; }
.bk-history li::before { position: absolute; top: 8px; left: -35px; width: 12px; height: 12px; border-radius: 50%; background: var(--bk-gold); box-shadow: 0 0 0 4px var(--bk-white); content: ""; }
.bk-history strong { color: var(--bk-navy); font-family: "Montserrat", sans-serif; font-size: 24px; font-weight: 800; line-height: 1.2; }
.bk-history p { margin: 0 0 4px; color: #374151; font-size: 16px; }
.bk-history p em { display: inline-block; min-width: 56px; color: var(--bk-gold); font-style: normal; font-weight: 800; }

/* 유관기관 텍스트 링크 */
.bk-footer__office a { color: var(--bk-navy); font-size: 14px; font-weight: 800; text-align: center; }
.bk-footer__office ul { grid-template-columns: repeat(6, minmax(0, 1fr)); }

/* 문의 버튼 */
.bk-contact__row a:hover { color: var(--bk-gold-soft); }

@media (max-width: 960px) {
  .bk-product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .bk-sir { grid-template-columns: 1fr; }
  .bk-footer__office ul { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .bk-footer__office li:nth-child(4n + 1) { border-left: 0; }
  .bk-footer__office li:nth-child(3n + 1) { border-left: 1px solid var(--bk-line); }
  .bk-cert-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .bk-hero h1 { font-size: 32px; }
  .bk-product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bk-history li { grid-template-columns: 1fr; gap: 4px; }
  .bk-footer__office ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bk-footer__office li:nth-child(3n + 1) { border-left: 0; }
  .bk-footer__office li:nth-child(odd) { border-left: 1px solid var(--bk-line); }
}

/* 대표 사진: 자르지 않고 원본 비율 그대로 */
.bk-about__media { aspect-ratio: auto; border-radius: 8px; }
.bk-about__media img { height: auto; object-fit: contain; }

/* 생산공정 */
.bk-process { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; }
.bk-process article { overflow: hidden; border: 1px solid var(--bk-line); border-radius: 8px; background: var(--bk-white); }
.bk-process img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
.bk-process div { padding: 16px 16px 18px; }
.bk-process strong { display: block; margin-bottom: 6px; color: var(--bk-gold); font-family: "Montserrat", sans-serif; font-size: 13px; letter-spacing: 0.1em; }
.bk-process h3 { margin: 0 0 6px; color: var(--bk-navy); font-size: 17px; line-height: 1.3; }
.bk-process p { margin: 0; color: var(--bk-muted); font-size: 13px; line-height: 1.55; }

/* 의료폐기물 소개 */
.bk-waste { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-bottom: 18px; }
.bk-waste article { padding: 26px 24px; border: 1px solid var(--bk-line); border-radius: 8px; background: var(--bk-white); }
.bk-waste h3 { margin: 0 0 6px; color: var(--bk-navy); font-size: 20px; }
.bk-waste h3 small { display: block; margin-top: 4px; color: var(--bk-gold); font-size: 13px; font-weight: 800; }
.bk-waste p { margin: 0 0 10px; color: var(--bk-muted); font-size: 14px; }
.bk-waste ul { margin: 0; padding: 0; list-style: none; }
.bk-waste li { padding: 8px 0; border-top: 1px solid var(--bk-line); color: #374151; font-size: 14px; }
.bk-waste li b { color: var(--bk-navy); }
.bk-rfid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 18px; }
.bk-rfid__text { padding: 30px 28px; border: 1px solid var(--bk-line); border-radius: 8px; background: var(--bk-white); }
.bk-rfid__text h3 { margin: 0 0 10px; color: var(--bk-navy); font-size: 22px; }
.bk-rfid__text p { margin: 0 0 14px; color: #374151; font-size: 15px; }
.bk-rfid__text ol { margin: 0; padding-left: 20px; color: var(--bk-muted); font-size: 14px; line-height: 1.7; }
.bk-rfid__imgs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.bk-rfid__imgs img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; border-radius: 8px; border: 1px solid var(--bk-line); background: var(--bk-white); }
.bk-storage { margin-top: 18px; padding: 24px; border: 1px solid var(--bk-line); border-radius: 8px; background: var(--bk-white); display: grid; grid-template-columns: 0.55fr 1fr; gap: 24px; align-items: center; }
.bk-storage img { width: 100%; border: 1px solid var(--bk-line); border-radius: 6px; }
.bk-storage h3 { margin: 0 0 10px; color: var(--bk-navy); font-size: 20px; }
.bk-storage p { margin: 0 0 8px; color: #374151; font-size: 15px; }

/* 현장 갤러리 */
.bk-gallery { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); grid-auto-rows: 220px; gap: 12px; }
.bk-gallery a { position: relative; display: block; overflow: hidden; border-radius: 8px; border: 1px solid var(--bk-line); background: #d9dee7; }
.bk-gallery a:nth-child(1), .bk-gallery a:nth-child(6) { grid-column: span 2; grid-row: span 2; }
.bk-gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.bk-gallery a:hover img { transform: scale(1.04); }
.bk-gallery span { position: absolute; right: 0; bottom: 0; left: 0; padding: 22px 14px 12px; background: linear-gradient(180deg, rgba(0,2,29,0), rgba(0,2,29,0.75)); color: var(--bk-white); font-size: 13px; font-weight: 700; }

/* 뉴스 */
.bk-news { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 0; overflow: hidden; border: 1px solid var(--bk-line); border-radius: 8px; background: var(--bk-white); }
.bk-news img { width: 100%; height: 100%; object-fit: cover; }
.bk-news div { padding: 36px; }
.bk-news div .bk-eyebrow { color: var(--bk-gold); margin-bottom: 10px; }
.bk-news h3 { margin: 0 0 12px; color: var(--bk-navy); font-size: 26px; line-height: 1.3; }
.bk-news p { margin: 0; color: #374151; font-size: 15px; }

.bk-map__links { display: flex; gap: 8px; margin-top: 12px; }
.bk-map__links a { display: inline-flex; align-items: center; min-height: 40px; padding: 0 16px; border-radius: 8px; background: var(--bk-gold); color: var(--bk-white); font-size: 14px; font-weight: 800; }
.bk-map__links a.is-naver { background: #03c75a; }
.bk-map { display: flex; flex-direction: column; }
.bk-map iframe { flex: 1; }

@media (max-width: 960px) {
  .bk-process { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bk-waste, .bk-rfid, .bk-storage, .bk-news { grid-template-columns: 1fr; }
  .bk-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-auto-rows: 180px; }
}
@media (max-width: 640px) {
  .bk-process { grid-template-columns: 1fr; }
  .bk-gallery { grid-auto-rows: 150px; }
  .bk-news div { padding: 24px 20px; }
  .bk-news h3 { font-size: 22px; }
}

/* 로고 크기 */
.bk-logo { width: 210px; }
.bk-footer__brand { width: 230px; min-width: 230px; }
.bk-footer__brand img { width: 200px; }

/* 회사 소개 */
.bk-intro { display: grid; grid-template-columns: 1.25fr 0.75fr; gap: 28px; margin-bottom: 28px; }
.bk-intro__text { padding: 34px 32px; border: 1px solid var(--bk-line); border-radius: 8px; background: var(--bk-white); }
.bk-intro__text p { margin: 0 0 14px; color: #374151; font-size: 15.5px; line-height: 1.75; }
.bk-intro__text p:last-child { margin-bottom: 0; }
.bk-intro__text b { color: var(--bk-navy); }
.bk-intro__media { display: grid; grid-template-rows: 1fr 1fr; gap: 12px; }
.bk-intro__media img { width: 100%; height: 100%; object-fit: cover; border-radius: 8px; border: 1px solid var(--bk-line); }
.bk-direction { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.bk-direction article { padding: 26px 22px; border-top: 4px solid var(--bk-gold); background: var(--bk-white); border-radius: 0 0 8px 8px; }
.bk-direction span { display: block; margin-bottom: 12px; color: var(--bk-navy); font-family: "Montserrat", sans-serif; font-size: 26px; font-weight: 800; line-height: 1; }
.bk-direction h3 { margin: 0 0 8px; color: var(--bk-navy); font-size: 18px; }
.bk-direction p { margin: 0; color: var(--bk-muted); font-size: 14px; line-height: 1.65; }

/* 조직도 */
.bk-org { margin-top: 28px; padding: 34px 28px; border: 1px solid var(--bk-line); border-radius: 8px; background: var(--bk-white); }
.bk-org h3 { margin: 0 0 24px; color: var(--bk-navy); font-size: 22px; text-align: center; }
.bk-org__tree { display: flex; flex-direction: column; align-items: center; }
.bk-org__lv1 { padding: 12px 40px; border-radius: 8px; background: var(--bk-navy); color: var(--bk-white); font-size: 18px; font-weight: 800; }
.bk-org__line { width: 2px; height: 26px; background: var(--bk-line); }
.bk-org__lv2 { display: flex; gap: 16px; }
.bk-org__lv2 span { padding: 10px 30px; border: 2px solid var(--bk-gold); border-radius: 8px; color: var(--bk-navy); font-weight: 800; }
.bk-org__lv3 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; width: 100%; max-width: 860px; }
.bk-org__lv3 span { padding: 16px 10px; border: 1px solid var(--bk-line); border-radius: 8px; background: var(--bk-paper); color: var(--bk-navy); font-size: 15px; font-weight: 700; line-height: 1.45; text-align: center; }
.bk-waste__tree { margin: -14px 0 22px; color: var(--bk-muted); font-size: 14px; }
.bk-waste__tree b { color: var(--bk-navy); }

/* 고객지원 */
.bk-support { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 24px; }
.bk-form { padding: 32px; border: 1px solid var(--bk-line); border-radius: 8px; background: var(--bk-white); }
.bk-form h3, .bk-board h3 { margin: 0 0 18px; color: var(--bk-navy); font-size: 22px; }
.bk-form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.bk-form label { display: block; margin-bottom: 12px; color: var(--bk-navy); font-size: 13px; font-weight: 800; }
.bk-form input, .bk-form select, .bk-form textarea { display: block; width: 100%; margin-top: 6px; padding: 11px 12px; border: 1px solid var(--bk-line); border-radius: 8px; background: var(--bk-paper); color: var(--bk-ink); font: inherit; font-size: 15px; }
.bk-form textarea { resize: vertical; }
.bk-form input:focus, .bk-form select:focus, .bk-form textarea:focus { outline: 2px solid var(--bk-gold); border-color: transparent; background: var(--bk-white); }
.bk-form__agree { display: flex !important; align-items: center; gap: 8px; font-weight: 500 !important; color: var(--bk-muted) !important; }
.bk-form__agree input { width: auto; margin: 0; }
.bk-form__actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }
.bk-button--line { border-color: var(--bk-navy); color: var(--bk-navy); }
.bk-form__note { margin: 12px 0 0; color: var(--bk-muted); font-size: 12px; }
.bk-boards { display: grid; grid-template-rows: auto auto; gap: 24px; }
.bk-board { padding: 28px; border: 1px solid var(--bk-line); border-radius: 8px; background: var(--bk-white); }
.bk-board ul { margin: 0; padding: 0; list-style: none; }
.bk-board li a { display: flex; justify-content: space-between; gap: 12px; padding: 12px 0; border-top: 1px solid var(--bk-line); color: #374151; font-size: 14px; }
.bk-board li a:hover span { color: var(--bk-gold); }
.bk-board li em { flex: 0 0 auto; color: var(--bk-muted); font-size: 12px; font-style: normal; }

@media (max-width: 960px) {
  .bk-intro, .bk-support { grid-template-columns: 1fr; }
  .bk-intro__media { grid-template-rows: none; grid-template-columns: 1fr 1fr; }
  .bk-direction { grid-template-columns: 1fr 1fr; }
  .bk-org__lv3 { grid-template-columns: 1fr 1fr; }
  .bk-logo { width: 170px; }
}
@media (max-width: 640px) {
  .bk-direction, .bk-form__row, .bk-intro__media { grid-template-columns: 1fr; }
  .bk-org__lv3 { grid-template-columns: 1fr; }
  .bk-org__lv2 { flex-direction: column; gap: 8px; }
  .bk-logo { width: 150px; }
  .bk-footer__brand { width: 200px; min-width: 200px; }
  .bk-footer__brand img { width: 176px; }
}

/* 메뉴 10개: 한 줄 유지 */
.bk-nav { gap: 18px; font-size: 13.5px; letter-spacing: 0.01em; }
.bk-nav a { white-space: nowrap; }
.bk-logo { width: 196px; }
@media (max-width: 1180px) and (min-width: 961px) { .bk-nav { gap: 12px; font-size: 12.5px; } .bk-logo { width: 170px; } }

/* 라이트박스 */
.bk-lightbox { position: fixed; inset: 0; z-index: 100; display: none; align-items: center; justify-content: center; padding: 16px; background: rgba(0, 2, 29, 0.88); cursor: zoom-out; overflow: hidden; }
.bk-lightbox.is-open { display: flex; }
.bk-lightbox img { display: block; max-width: min(100%, 1100px); max-height: calc(100vh - 32px); max-height: calc(100dvh - 32px); width: auto; height: auto; object-fit: contain; border-radius: 8px; box-shadow: 0 30px 80px rgba(0,0,0,0.5); background: #fff; }
.bk-lightbox figcaption { position: absolute; right: 0; bottom: 14px; left: 0; padding: 0 16px; color: rgba(255,255,255,0.85); font-size: 14px; font-weight: 700; text-align: center; pointer-events: none; }
.bk-lightbox__close { position: absolute; top: 14px; right: 14px; width: 42px; height: 42px; border: 0; border-radius: 50%; background: rgba(255,255,255,0.15); color: #fff; font-size: 26px; line-height: 42px; cursor: pointer; }
body.bk-noscroll { overflow: hidden; }
.bk-cert-card img, .bk-gallery img, .bk-product img, .bk-storage img, .bk-rfid__imgs img, .bk-news > img, .bk-intro__media img, .bk-process img, .bk-service__image img, .bk-about__media img { cursor: zoom-in; }

/* 고객사 로고 */
.bk-logo-grid--clients { grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 10px; }
.bk-logo-grid--clients a { min-height: 96px; padding: 14px 12px; }
.bk-logo-grid--clients img { max-width: 130px; max-height: 52px; }
.bk-nav { gap: 16px; font-size: 13px; }
@media (max-width: 1180px) and (min-width: 961px) { .bk-nav { gap: 10px; font-size: 12px; } }
@media (max-width: 960px) { .bk-logo-grid--clients { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (max-width: 640px) { .bk-logo-grid--clients { grid-template-columns: repeat(3, minmax(0, 1fr)); } .bk-logo-grid--clients a { min-height: 76px; padding: 10px 8px; } .bk-logo-grid--clients img { max-height: 40px; } }

/* 공정 사진 슬라이드 */
.bk-slider { position: relative; }
.bk-slider__track { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
.bk-slider__track::-webkit-scrollbar { display: none; }
.bk-slider__track img { flex: 0 0 100%; width: 100%; aspect-ratio: 1 / 1; object-fit: cover; scroll-snap-align: start; }
.bk-slider__dots { position: absolute; right: 0; bottom: 8px; left: 0; display: flex; justify-content: center; gap: 6px; }
.bk-slider__dots button { width: 8px; height: 8px; padding: 0; border: 0; border-radius: 50%; background: rgba(255,255,255,0.55); box-shadow: 0 0 0 1px rgba(0,0,0,0.15); cursor: pointer; }
.bk-slider__dots button.is-on { background: var(--bk-gold); }

/* 인라인 SVG 로고 */
.bk-logo-svg { display: block; width: 100%; height: auto; }
.bk-logo { width: 200px; }
.bk-footer__brand { width: auto; min-width: 0; padding: 12px 18px; }
.bk-footer__brand .bk-logo-svg { width: 200px; }
.bk-footer__credit { display: inline-block; margin-left: 10px; color: rgba(255,255,255,0.66); }
.bk-footer__credit a { color: var(--bk-gold-soft); font-weight: 700; }
.bk-footer__credit a:hover { text-decoration: underline; }
@media (max-width: 960px) { .bk-logo { width: 170px; } }
@media (max-width: 640px) { .bk-logo { width: 150px; } .bk-footer__brand .bk-logo-svg { width: 170px; } .bk-footer__credit { display: block; margin: 4px 0 0; } }