/* ===== GNB 공통 ===== */
.site-nav__list{display:flex;align-items:center;gap:38px}

.site-nav__item{position:relative}

.site-nav__link{
  display:block;
  padding:28px 0;
  font-size:16px;font-weight:600;
  transition:color var(--tr);
}
.site-nav__link:hover{color:var(--c-primary)}

.site-nav__item.has-sub > .site-nav__link::after{
  content:'';
  display:none;
  width:5px;height:5px;
  margin-left:7px;
  border-right:1.5px solid currentColor;
  border-bottom:1.5px solid currentColor;
  transform:translateY(-2px) rotate(45deg);
  opacity:.5;
}

/* 패널 — 위치·전환은 두 스타일 공통 */
.site-nav__sub{
  position:absolute;top:100%;
  background:var(--c-bg);
  opacity:0;visibility:hidden;
  transform:translateY(-8px);
  transition:opacity var(--tr),transform var(--tr),visibility 0s linear .25s;
}
.site-nav__item:hover > .site-nav__sub,
.site-nav__item:focus-within > .site-nav__sub{
  opacity:1;visibility:visible;
  transform:translateY(0);
  transition:opacity var(--tr),transform var(--tr),visibility 0s;
}

.site-nav__sub-title{display:block}


/* ===== --a  드롭다운 ===== */
.site-header--a .site-nav__sub{
  left:50%;
  min-width:170px;
  margin-left:-85px;
  padding:10px 0;
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}

.site-header--a .site-nav__mega-aside,
.site-header--a .site-nav__thumb{display:none}

.site-header--a .site-nav__sub-link{
  display:block;
  padding:9px 20px;
  font-size:var(--fs-sm);
  color:var(--c-text-sub);
  white-space:nowrap;
  transition:color var(--tr),background var(--tr);
}
.site-header--a .site-nav__sub-link:hover{color:var(--c-primary);background:var(--c-primary-l)}


/* ===== --b  메가 ===== */
.site-header--b{position:relative}

.site-header--b .site-nav__item{position:static}

.site-header--b .site-nav__sub{
  left:0;right:0;
  border-top:1px solid var(--c-line);
  box-shadow:var(--shadow);
}

.site-header--b .site-nav__sub-inner{
  display:grid;
  grid-template-columns:220px 1fr;
  grid-template-rows:1fr;
  gap:var(--gap);
  min-height:var(--mega-h,340px);
  max-width:var(--inner-w);
  margin:0 auto;
  padding:40px var(--inner-px);
}

/* 좌측 */
.site-header--b .site-nav__mega-aside{display:flex;flex-direction:column}

.site-header--b .site-nav__mega-title{
  display:block;
  position:relative;
  padding-bottom:14px;
  font-family:var(--f-head);
  font-size:var(--fs-h3);font-weight:var(--fw-head);
  color:var(--c-text);
}
.site-header--b .site-nav__mega-title::after{
  content:'';
  position:absolute;left:0;bottom:0;
  width:28px;height:2px;
  background:var(--c-primary);
}

.site-header--b .site-nav__mega-desc{
  margin-top:10px;
  font-size:var(--fs-sm);line-height:var(--lh-body);
  color:var(--c-text-mute);
}

.site-header--b .site-nav__mega-img{
  display:block;
  margin-top:20px;
  aspect-ratio:4/3;
  border-radius:var(--radius-lg);
  background:var(--c-bg-alt) var(--bg-img,none) center/cover no-repeat;
}

.site-header--b .site-nav__mega-cta{
  display:flex;flex-direction:column;align-items:flex-start;gap:8px;
  margin-top:auto;
  padding-top:20px;
}

.site-header--b .site-nav__mega-tel{
  display:inline-flex;align-items:center;gap:6px;
  font-size:var(--fs-sm);font-weight:600;
  color:var(--c-text-sub);
  letter-spacing:-.01em;
  transition:color var(--tr);
}
.site-header--b .site-nav__mega-tel svg{color:var(--c-text-mute);transition:color var(--tr)}
.site-header--b .site-nav__mega-tel:hover,
.site-header--b .site-nav__mega-tel:hover svg{color:var(--c-primary)}

/* 버튼이 아니라 텍스트 링크. 화살표가 살짝 밀린다 */
.site-header--b .site-nav__mega-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:0;
  font-size:var(--fs-sm);font-weight:600;
  color:var(--c-primary);
  background:none;border:0;border-radius:0;
  transition:gap var(--tr);
}
.site-header--b .site-nav__mega-btn svg{transition:transform var(--tr)}
.site-header--b .site-nav__mega-btn:hover{background:none;gap:10px}
.site-header--b .site-nav__mega-btn:hover svg{transform:translateX(2px)}

/* 우측 */
.site-header--b .site-nav__sub-list{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:22px 20px;
  align-content:start;
}

.site-header--b .site-nav__thumb{
  display:block;
  aspect-ratio:4/3;
  border-radius:var(--radius);
  background:var(--c-bg-alt) var(--bg-img,none) center/cover no-repeat;
  transition:opacity var(--tr);
}

.site-header--b .site-nav__sub-item:not(.has-thumb) .site-nav__thumb{
  border:1px dashed var(--c-line);
}

.site-header--b .site-nav__sub-title{
  margin-top:10px;
  font-size:var(--fs-sm);font-weight:600;
  color:var(--c-text-sub);
  transition:color var(--tr);
}

.site-header--b .site-nav__sub-link:hover .site-nav__thumb{opacity:.82}
.site-header--b .site-nav__sub-link:hover .site-nav__sub-title{color:var(--c-primary)}


/* ===== 모바일 ===== */
@media (max-width:1024px){
  .site-nav{
    position:fixed;top:60px;left:0;right:0;bottom:0;
    background:var(--c-bg);
    padding:10px var(--inner-px) 40px;
    overflow-y:auto;
    transform:translateX(100%);
    transition:transform var(--tr);
  }
  .site-header.is-open .site-nav{transform:translateX(0)}

  .site-nav__list{display:block}
  .site-nav__link{padding:16px 0;border-bottom:1px solid var(--c-line);font-size:17px}
  .site-nav__item.has-sub > .site-nav__link{
    display:flex;
    align-items:center;
    justify-content:space-between;
  }
  .site-nav__item.has-sub > .site-nav__link::after{
    display:inline-block;
    margin:0;
  }

  /* ⚠️ 기본은 닫힘 */
  .site-nav__sub{
    display:none;
    position:static !important;
    left:auto !important;
    right:auto !important;
    width:auto !important;
    min-width:0 !important;
    max-width:none !important;
    margin:0 !important;
    opacity:1;visibility:visible;
    transform:none !important;
    padding:6px 0 12px 14px;
    border:0;box-shadow:none;
    background:none;
    transition:none;
  }

  .site-nav__item.is-open > .site-nav__sub{
    display:block;
  }

  .site-header--b .site-nav__sub-inner{
    display:block;
    min-height:0;
    padding:0;
    background:none;
    border:0;
    box-shadow:none;
  }

  /* 좌측 대표이미지·문구·전화 블록은 모바일에서 뺀다 */
  .site-nav__mega-aside{display:none}

  /* 썸네일 2열 */
  .site-header--b .site-nav__sub-list{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:14px 12px;
  }

  .site-nav__sub-link{
    display:block;
    padding:9px 6px;
    font-size:var(--fs-sm);
    color:var(--c-text-sub);
  }
  .site-header--b .site-nav__sub-title{margin-top:0;font-weight:400}
}