:root {
  --navy: #0b1f3a;
  --blue: #0b3d91;
  --blue-soft: #e8efff;
  --green: #0d7a4a;
  --green-soft: #e7f7ef;
  --text: #1c2430;
  --muted: #5a6578;
  --line: #e6e9ee;
  --gray: #f5f7fa;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body { font-family: "Pretendard", "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif; color: var(--text); background: #fff; line-height: 1.6; word-break: keep-all; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

/* header */
header { position: sticky; top: 0; z-index: 10; background: #fff; border-bottom: 1px solid var(--line); }
header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { font-weight: 800; font-size: 22px; letter-spacing: 1px; color: var(--blue); }
nav { display: flex; align-items: center; gap: 24px; font-size: 15px; }
nav a:hover, nav a.on { color: var(--blue); font-weight: 700; }
.cta { background: var(--blue); color: #fff !important; padding: 9px 16px; border-radius: 6px; font-weight: 700; }
.menu-btn { display: none; background: none; border: 0; font-size: 26px; cursor: pointer; }

/* hero */
.hero { background: var(--navy); color: #fff; padding: 64px 0 56px; }
.hero h1 { font-size: 38px; font-weight: 800; line-height: 1.35; }
.hero p.lead { margin-top: 16px; font-size: 18px; color: #c9d4e5; }
.page-hero { background: var(--navy); color: #fff; padding: 48px 0 40px; }
.page-hero .eyebrow { font-size: 14px; color: #9fb3d1; font-weight: 700; }
.page-hero h1 { margin-top: 6px; font-size: 32px; font-weight: 800; line-height: 1.35; }
.page-hero p { margin-top: 12px; font-size: 17px; color: #c9d4e5; }

/* product cards */
.split { margin-top: 40px; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.card { padding: 28px; border-radius: 12px; background: #fff; color: var(--text); }
.tag { display: inline-block; font-size: 13px; padding: 4px 10px; border-radius: 20px; background: var(--blue-soft); color: var(--blue); font-weight: 700; }
.card h2 { margin-top: 12px; font-size: 26px; }
.card .for { margin-top: 4px; font-size: 15px; color: var(--muted); }
.card ul { margin: 16px 0 0 18px; font-size: 15px; line-height: 1.8; }
.btn { display: inline-block; margin-top: 18px; padding: 10px 18px; border-radius: 6px; background: var(--blue); color: #fff; font-size: 15px; font-weight: 700; }
.btn.line { background: #fff; color: var(--blue); border: 1px solid var(--blue); }
.lt .tag { background: var(--green-soft); color: var(--green); }
.lt .btn { background: var(--green); }

/* sections */
section { padding: 52px 0; }
section.gray { background: var(--gray); }
h2.sec { font-size: 26px; font-weight: 800; }
.sub { margin-top: 8px; color: var(--muted); font-size: 16px; }
.grid { margin-top: 28px; display: grid; gap: 18px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.box { padding: 22px; border: 1px solid var(--line); border-radius: 10px; background: #fff; font-size: 15px; color: #39424f; }
.box b { display: block; font-size: 17px; margin-bottom: 8px; color: var(--text); }
.box ul { margin-left: 18px; }
.num { text-align: center; border: none; }
.num .n { font-size: 32px; font-weight: 800; color: var(--blue); }
.note { margin-top: 14px; font-size: 13px; color: #7a8494; }
ul.list { margin: 16px 0 0 20px; line-height: 1.9; }

/* table */
.tbl-wrap { margin-top: 24px; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 560px; }
th, td { border: 1px solid var(--line); padding: 12px 14px; vertical-align: middle; }
th { background: var(--gray); font-weight: 700; text-align: center; }
td:first-child { font-weight: 700; text-align: center; background: #fafbfc; }

/* flow */
.flow { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.flow span { padding: 12px 16px; border-radius: 8px; background: var(--blue-soft); color: var(--blue); font-weight: 700; font-size: 15px; }
.flow i { font-style: normal; color: var(--muted); }

/* inquiry band */
.band { background: var(--blue); color: #fff; padding: 40px 0; }
.band .wrap { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
.band b { font-size: 22px; }
.band .btn { background: #fff; color: var(--blue); margin-top: 0; }

/* form */
form.inq { margin-top: 24px; display: grid; gap: 14px; max-width: 640px; }
form.inq label { font-weight: 700; font-size: 15px; }
form.inq input, form.inq select, form.inq textarea { width: 100%; margin-top: 6px; padding: 11px 12px; border: 1px solid #cfd5de; border-radius: 6px; font: inherit; }
form.inq .agree { font-weight: 400; font-size: 14px; color: var(--muted); }
form.inq button { padding: 13px; border: 0; border-radius: 6px; background: var(--blue); color: #fff; font: inherit; font-weight: 700; cursor: pointer; }

footer { background: var(--navy); color: #b8c4d6; font-size: 13.5px; padding: 28px 0; line-height: 1.9; }
footer b { color: #fff; }

@media (max-width: 860px) {
  nav { display: none; position: absolute; top: 68px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; gap: 0; border-bottom: 1px solid var(--line); }
  nav.open { display: flex; }
  nav a { padding: 14px 16px; border-top: 1px solid var(--line); }
  nav .cta { margin: 12px 16px; text-align: center; }
  .menu-btn { display: block; }
  .hero h1 { font-size: 28px; }
  .page-hero h1 { font-size: 26px; }
  .split, .g2, .g3, .g4 { grid-template-columns: 1fr; }
}

/* video */
.video { margin-top: 24px; position: relative; aspect-ratio: 16 / 9; border-radius: 12px; overflow: hidden; background: #000; }
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ---- design pass 2: backgrounds and depth ---- */
header { background: rgba(255,255,255,0.92); backdrop-filter: blur(8px); }
.hero { background: #071528 url(hero-bg.svg) center / cover no-repeat; padding: 84px 0 72px; }
.hero h1 { text-shadow: 0 2px 16px rgba(0,0,0,0.35); }
.hero h1 em { font-style: normal; color: #8fc0ff; }
.page-hero { background: #071528 url(page-bg.svg) center / cover no-repeat; padding: 56px 0 48px; }
.page-hero.lt { background: linear-gradient(90deg, rgba(4,40,30,0.85), rgba(13,122,74,0.55)), #071528 url(page-bg.svg) center / cover no-repeat; }
.page-hero.lt .eyebrow { color: #9fe0c0; }
.card { box-shadow: 0 18px 40px rgba(0,0,0,0.28); border-top: 5px solid var(--blue); }
.card.lt { border-top-color: var(--green); }
section.gray { background: linear-gradient(180deg, #f2f6fc 0%, #f8fafd 100%); border-top: 1px solid #e3eaf5; border-bottom: 1px solid #e3eaf5; }
.box { box-shadow: 0 2px 10px rgba(16,40,80,0.05); transition: transform .15s, box-shadow .15s; }
.box:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(16,40,80,0.10); }
.box b { color: var(--blue); }
h2.sec { position: relative; padding-left: 14px; }
h2.sec::before { content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 5px; border-radius: 3px; background: linear-gradient(180deg, #3d8bff, var(--blue)); }
section.dark { background: #071528 url(page-bg.svg) center / cover no-repeat; color: #fff; }
section.dark h2.sec { color: #fff; }
section.dark .box { background: rgba(255,255,255,0.06); border-color: rgba(143,192,255,0.25); color: #c9d4e5; box-shadow: none; }
section.dark .num .n { color: #8fc0ff; }
section.dark .note { color: #9fb3d1; }
.band { background: linear-gradient(90deg, var(--blue), #1f6fe0); }
.flow span { background: #fff; border: 1px solid #c9dafb; box-shadow: 0 2px 8px rgba(16,40,80,0.06); }
.video { box-shadow: 0 18px 40px rgba(16,40,80,0.18); }
th { background: #eaf1fc; color: var(--blue); }
@media (max-width: 860px) {
  table { min-width: 0; font-size: 14px; }
  th, td { padding: 9px 8px; }
}