:root {
  --navy: #1241b8;
  --navy-deep: #0c328f;
  --logo: #2436a0;
  --ink: #243044;
  --muted: #5c6b7e;
  --line: #e5e8ee;
  --line-strong: #d5dbe3;
  --sky: #e7f3fb;
  --bg: #ffffff;
  --soft: #f6f8fb;
  --tab-1: #3c86c8;
  --tab-2: #5b9fd4;
  --tab-3: #7eb4dc;
  --green: #2f9e44;
  --danger: #b42318;
  --shadow: 0 8px 24px rgba(18, 65, 184, 0.06);
  --wrap: 1080px;
  --header: 108px;
  --font: "Apple SD Gothic Neo", "Pretendard", "Noto Sans KR", "Malgun Gothic", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  word-break: keep-all;
  overflow-wrap: break-word;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--navy); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, select, textarea { font: inherit; }
.skip {
  position: absolute;
  left: 12px;
  top: -40px;
  background: var(--navy);
  color: #fff;
  padding: 8px 12px;
  z-index: 20;
}
.skip:focus { top: 12px; }

.wrap { width: min(var(--wrap), calc(100% - 32px)); margin: 0 auto; }

.site-header {
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 30;
}
.util {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  padding-top: 14px;
}
.lang {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  min-height: 26px;
  padding: 0 8px;
  border-radius: 2px;
  border: 1px solid var(--navy);
  color: var(--navy);
  background: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
}
.lang:hover { text-decoration: none; background: var(--sky); }
.lang.is-on { color: #fff; background: var(--green); border-color: var(--green); }
.lang.en.is-on { color: #fff; background: var(--navy); border-color: var(--navy); }

.bar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  min-height: 64px;
  padding-bottom: 12px;
}
.brand {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  color: var(--logo);
  text-decoration: none;
  flex: 0 0 auto;
}
.brand:hover { text-decoration: none; }
.brand-logo { height: 48px; width: auto; display: block; }
.hero-mark {
  width: min(280px, 34%);
  right: 6%;
  bottom: 28px;
  mix-blend-mode: multiply;
  -webkit-mask-image: none;
  mask-image: none;
  mask-composite: add;
  -webkit-mask-composite: source-over;
}
.brand-name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.03em;
  padding-bottom: 3px;
  color: var(--logo);
}
.nav {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav-item { position: relative; }
.nav-item > a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  color: #5e6a78;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.03em;
  text-decoration: none;
}
.nav-item > a:hover,
.nav-item > a.is-current,
.nav-item:focus-within > a {
  color: var(--navy);
  text-decoration: none;
}
.sub {
  display: none;
  position: absolute;
  top: calc(100% - 2px);
  left: 0;
  min-width: 168px;
  padding: 8px 0;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  z-index: 40;
}
.nav-item:hover > .sub,
.nav-item:focus-within > .sub { display: block; }
.sub a {
  display: flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  color: var(--ink);
  font-size: 14px;
  text-decoration: none;
}
.sub a:hover,
.sub a.is-current { background: var(--sky); color: var(--navy); text-decoration: none; }
.rule { height: 4px; background: var(--navy); }
.menu-btn {
  display: none;
  min-width: 44px;
  min-height: 44px;
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--navy);
  font-weight: 700;
}

.hero {
  position: relative;
  min-height: 460px;
  background: #d7ecf8 url("../img/ship.png") 88% center / cover no-repeat;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,.94) 0%, rgba(255,255,255,.82) 30%, rgba(232,244,252,.35) 52%, rgba(255,255,255,0) 68%);
}
.hero-inner {
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(280px, 460px) 1fr;
  align-items: end;
  min-height: 460px;
  padding: 48px 0 0;
}
.hero-copy { position: relative; z-index: 2; padding-bottom: 72px; }
.kicker {
  margin: 0 0 8px;
  color: var(--navy);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.04em;
}
.hero h1,
.hero .display {
  margin: 0;
  color: var(--navy-deep);
  font-size: 40px;
  line-height: 1.25;
  letter-spacing: -0.045em;
  font-weight: 800;
}
.hero .en-line {
  margin: 14px 0 0;
  color: #3d6494;
  font-size: 15px;
}
.hero-products {
  position: absolute;
  right: 0;
  bottom: 0;
  z-index: 1;
  width: min(640px, 50%);
  margin: 0;
  -webkit-mask-image:
    linear-gradient(90deg, transparent 0%, #000 16%, #000 100%),
    linear-gradient(180deg, transparent 0%, #000 28%, #000 100%);
  -webkit-mask-composite: source-in;
  mask-image:
    linear-gradient(90deg, transparent 0%, #000 16%, #000 100%),
    linear-gradient(180deg, transparent 0%, #000 28%, #000 100%);
  mask-composite: intersect;
}
.hero.is-sub { min-height: 220px; }
.hero.is-sub .hero-inner { min-height: 220px; align-items: center; }
.hero.is-sub .hero-copy { padding: 28px 0; }
.hero.is-sub h1,
.hero.is-sub .display { font-size: 28px; }
.hero.is-sub .hero-products {
  width: min(460px, 42%);
  height: 100%;
  object-fit: contain;
  object-position: right bottom;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 18%, #000 100%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 18%, #000 100%);
  -webkit-mask-composite: source-over;
  mask-composite: add;
}

.home-cards { padding: 28px 0 64px; }
.card-grid {
  display: grid;
  grid-template-columns: 1fr 1.12fr 1fr;
  gap: 18px;
}
.card {
  border: 1px solid #eceff3;
  background: #fff;
  box-shadow: 0 1px 0 rgba(0,0,0,.02);
  min-width: 0;
}
.card-tab {
  display: inline-block;
  margin: 18px 0 0 18px;
  padding: 8px 16px;
  color: #fff;
  background: var(--tab-1);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.02em;
}
.card:nth-child(2) .card-tab { background: var(--tab-2); }
.card:nth-child(3) .card-tab { background: var(--tab-3); }
.card h2 {
  margin: 18px 20px 8px;
  text-align: center;
  font-size: 26px;
  letter-spacing: -0.04em;
  color: #2c3a4a;
}
.card .lead {
  margin: 0 22px 16px;
  text-align: center;
  color: #3e6f9d;
  font-size: 14px;
  line-height: 1.65;
}
.card figure { margin: 0; }
.card img { width: 100%; height: 168px; object-fit: cover; }
.card figcaption, .caption {
  margin: 0;
  padding: 8px 12px 12px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}
.quick-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 14px;
  margin: 0 16px 12px;
  padding: 0;
  list-style: none;
}
.quick-links a { font-size: 14px; font-weight: 600; }
.contact-block { text-align: center; padding: 0 18px 8px; }
.contact-block .label { margin: 0; color: var(--navy); font-size: 14px; font-weight: 700; }
.contact-block .phone {
  margin: 2px 0 6px;
  color: var(--navy-deep);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.04em;
}
.contact-block .phone a { color: var(--navy-deep); text-decoration: none; }
.contact-block p { margin: 0; color: var(--muted); font-size: 13px; }
.btn-col { display: grid; gap: 8px; padding: 14px 28px 22px; }
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 8px 12px;
  border: 1px solid #d5dbe3;
  border-radius: 4px;
  background: #f7f8fa;
  color: #3d4c5e;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}
.btn:hover { background: var(--navy); color: #fff; border-color: var(--navy); text-decoration: none; }
.btn.is-disabled, .btn[aria-disabled="true"] {
  background: #f3f4f6;
  color: #8b95a1;
  border-color: #e5e7eb;
  cursor: not-allowed;
  pointer-events: none;
}

.layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 36px;
  padding: 34px 0 72px;
}
.side-title {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 0 16px;
  background: var(--tab-1);
  color: #fff;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.side-nav { border: 1px solid var(--line); border-top: 0; }
.side-nav a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  color: #3c4654;
  background: #fff;
  text-decoration: none;
  font-size: 14px;
}
.side-nav a:hover { background: var(--soft); text-decoration: none; }
.side-nav a.is-current {
  color: var(--navy);
  font-weight: 800;
  box-shadow: inset 3px 0 0 var(--navy);
}
.side-quick {
  margin-top: 16px;
  display: grid;
  gap: 8px;
}
.crumb {
  margin: 0 0 8px;
  text-align: right;
  color: var(--muted);
  font-size: 13px;
}
.crumb a { color: var(--muted); }
.page-title {
  margin: 0 0 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-size: 30px;
  letter-spacing: -0.04em;
}
.prose p { margin: 0 0 14px; }
.prose h2 {
  margin: 28px 0 10px;
  font-size: 20px;
  letter-spacing: -0.03em;
  color: var(--navy-deep);
}
.note {
  margin: 18px 0;
  padding: 12px 14px;
  background: var(--soft);
  border-left: 3px solid var(--navy);
  color: #3d4c5e;
  font-size: 14px;
}
.split {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 22px;
  align-items: start;
}
.media-frame {
  background: var(--soft);
  border: 1px solid var(--line);
}
.media-frame img { width: 100%; height: 240px; object-fit: cover; }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 18px 0;
  padding: 0;
  list-style: none;
}
.steps li {
  min-height: 112px;
  padding: 16px;
  border: 1px solid var(--line);
  background: #fff;
}
.steps .num {
  display: block;
  color: var(--navy);
  font-weight: 800;
  font-size: 13px;
}
.steps strong { display: block; margin: 4px 0; letter-spacing: -0.03em; }
.steps span { color: var(--muted); font-size: 14px; }

.product-grid, .slot-grid, .range-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.slot, .pinfo, .range {
  border: 1px solid var(--line);
  background: #fff;
  padding: 16px;
  min-width: 0;
}
.slot h3, .pinfo h3, .range h3 { margin: 0 0 8px; font-size: 18px; letter-spacing: -0.03em; }
.badge {
  display: inline-block;
  margin-bottom: 8px;
  padding: 2px 8px;
  background: var(--sky);
  color: var(--navy-deep);
  font-size: 12px;
  font-weight: 700;
}
.org {
  display: grid;
  gap: 10px;
  justify-items: center;
}
.org-top, .org-row span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 140px;
  padding: 8px 16px;
  border: 1px solid var(--line-strong);
  background: #fff;
}
.org-top { background: var(--navy); color: #fff; border-color: var(--navy); font-weight: 800; }
.org-row { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }

.board-tools {
  display: flex;
  gap: 8px;
  margin: 0 0 12px;
}
.board-tools input, .field input, .field textarea, .field select {
  width: 100%;
  min-height: 44px;
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--ink);
}
.board-tools button, .submit {
  min-height: 44px;
  padding: 0 16px;
  border: 0;
  background: var(--navy);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}
.board-tools button:hover, .submit:hover { background: var(--navy-deep); }
table.board {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.board th, .board td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}
.board th { background: var(--soft); color: #3d4c5e; font-weight: 700; }
.board td.num, .board td.meta { color: var(--muted); white-space: nowrap; }
.status { min-height: 1.4em; color: var(--muted); font-size: 14px; }

.form { display: grid; gap: 12px; max-width: 640px; }
.field label { display: block; font-weight: 700; margin-bottom: 4px; }
.req { color: var(--danger); }
.err { display: none; margin: 4px 0 0; color: var(--danger); font-size: 13px; }
.field.is-invalid .err { display: block; }
.field.is-invalid input, .field.is-invalid textarea { border-color: var(--danger); }
.hp {
  position: absolute;
  left: -9999px;
  height: 0;
  overflow: hidden;
}
.success {
  display: none;
  padding: 16px;
  background: var(--sky);
  border: 1px solid #c5ddf0;
}
.success.is-on { display: block; }
.map-frame {
  margin: 0 0 18px;
  border: 1px solid var(--line);
  background: #e7eef5;
}
.map-frame iframe {
  display: block;
  width: 100%;
  height: 360px;
  border: 0;
}
.map-placeholder {
  min-height: 280px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.88), rgba(255,255,255,.92)),
    repeating-linear-gradient(0deg, #e7eef5, #e7eef5 1px, transparent 1px, transparent 28px),
    repeating-linear-gradient(90deg, #e7eef5, #e7eef5 1px, transparent 1px, transparent 28px);
  border: 1px solid var(--line);
  color: var(--muted);
}

.site-footer { border-top: 1px solid var(--line); background: #fff; }
.foot-links {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  min-height: 58px;
  border-bottom: 1px solid var(--line);
}
.foot-links nav { display: flex; gap: 0; }
.foot-links a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border-right: 1px solid var(--line);
  color: #4b5563;
  font-size: 14px;
  text-decoration: none;
}
.foot-links a:hover { color: var(--navy); text-decoration: none; }
.foot-meta { padding: 18px 0 28px; color: #7b8794; font-size: 13px; line-height: 1.6; }
.foot-meta p { margin: 0; }

@media (max-width: 900px) {
  .menu-btn { display: inline-flex; align-items: center; justify-content: center; }
  .lang { min-height: 44px; min-width: 84px; }
  .bar { align-items: center; min-height: 64px; }
  .nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: #fff;
    border-bottom: 4px solid var(--navy);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    max-height: calc(100vh - 88px);
    overflow: auto;
  }
  body.nav-open .nav { display: flex; }
  .nav-item > a { border-top: 1px solid var(--line); }
  .sub { display: block; position: static; border: 0; box-shadow: none; padding: 0 0 8px; }
  .sub a { min-height: 44px; padding-left: 28px; color: var(--muted); }
  .hero, .hero-inner, .hero.is-sub, .hero.is-sub .hero-inner { min-height: 0; }
  .hero-inner, .card-grid, .layout, .split, .steps, .product-grid, .slot-grid, .range-grid {
    grid-template-columns: 1fr;
  }
  .hero { background-position: 70% center; }
  .hero::before {
    background: linear-gradient(180deg, rgba(255,255,255,.92) 0%, rgba(255,255,255,.78) 46%, rgba(255,255,255,.2) 100%);
  }
  .hero-copy, .hero.is-sub .hero-copy { padding: 28px 0 12px; }
  .hero h1,
  .hero .display { font-size: 30px; }
  .kicker { font-size: 18px; }
  .hero-products { width: min(100%, 420px); -webkit-mask-image: none; mask-image: none; position: static; margin: 0 auto; }
  .card h2 { font-size: 22px; }
  .foot-links { flex-direction: column; align-items: stretch; }
  .board-tools { flex-direction: column; }
  .contact-block .phone { font-size: 24px; }
}

@media (max-width: 390px) {
  .wrap { width: min(var(--wrap), calc(100% - 24px)); }
  .brand-name { font-size: 13px; }
  .mark { font-size: 28px; }
  .hero h1,
  .hero .display { font-size: 26px; }
}