:root{
  --main:#e01b25;
  --txt:#111;
  --line:rgba(0,0,0,0.10);
  --bg:#fff;
}

.bi-guide{
  background: var(--bg);
  padding: 40px 0;
  color: var(--txt);
  font-size: 18px;
}

.bi-inner{
  width: 1440px;
  max-width: calc(100% - 40px);
  margin: 0 auto;
  display: grid;
  gap: 20px;
}

/* 공통 카드 */
.bi-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 12px 26px rgba(0,0,0,0.06);
  padding: 28px;
}

/* 로고 */
.bi-logo{
  position: relative;
  width: 100%;
  min-height: 220px;                 /* 배경이 보일 높이 */
  background-image: url('../images/CI_bg.png');
  background-repeat: repeat;
  background-position: center;
  background-size: contain;            /* 또는 contain */
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  overflow: hidden;
}
.bi-logo img{
  width: 100%;
  max-width: 820px;
  height: auto;
  display:block;
  border-radius: 16px;
}

/* 컬러 */
.bi-color{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 18px;
}
.bi-color-left{
  display:flex;
  align-items:center;
  gap: 14px;
  min-width: 260px;
}
.bi-swatch{
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: var(--main);
  box-shadow: 0 10px 18px rgba(224,27,37,0.25);
}
.bi-color-name strong{
  display:block;
  font-size: 20px;
  font-weight: 900;
  line-height: 1.1;
}
.bi-color-name span{
  display:block;
  margin-top: 4px;
  font-weight: 800;
  color: var(--main);
}
.bi-color-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 22px;
  width: 100%;
  max-width: 520px;
}
.kv{ display:flex; gap: 10px; align-items: baseline; }
.kv .k{ font-weight: 900; color:#222; min-width: 54px; }
.kv .v{ color:#333; font-weight: 700; }

/* 의미 3단 */
.bi-meaning-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.bi-meaning{
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.bi-meaning:hover{
  transform: translateY(-5px);
  border-color: rgba(224,27,37,0.25);
  box-shadow: 0 18px 34px rgba(0,0,0,0.10);
}

.bi-meaning-top{
  display:flex;
  gap: 12px;
  align-items:center;
  margin-bottom: 12px;
}

/* 아이콘 공통 */
.bi-ico{
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display:flex;
  align-items:center;
  justify-content:center;
  background: rgba(224,27,37,0.10);
  flex: 0 0 56px;
}
.ico-svg{
  width: 38px;
  height: 38px;
  display:block;
}

/* NETWORKS 텍스트 아이콘 */
.bi-ico.networks{
  background: rgba(224,27,37,0.10);
}
.net-word{
  font-weight: 900;
  font-size: 12px;
  letter-spacing: -0.2px;
  color: #111;
  /* 로고 느낌: 굵고 깔끔하게 */
  font-family: system-ui, -apple-system, "Segoe UI", Arial, "Noto Sans KR", sans-serif;
}

.bi-title{
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.2px;
}
.bi-desc{
  margin: 0;
  line-height: 1.7;
  color:#222;
  font-weight: 700;
}

/* 반응형 */
@media (max-width: 1024px){
  .bi-color{
    flex-direction: column;
    align-items: flex-start;
  }
  .bi-color-grid{
    max-width: 100%;
  }
  .bi-meaning-grid{
    grid-template-columns: 1fr;
  }
}
@media (max-width: 768px){
  .bi-inner{
    max-width: calc(100% - 20px);
  }
  .bi-card{
    padding: 18px;
  }
}