/* 사이버전단지 공통 스타일 - 외부 폰트/JS 없음(LCP·CLS 최적화) */
:root{
  --bg:#fff; --fg:#16181d; --muted:#5c6370; --line:#e4e7ec;
  --brand:#0f5ba7; --brand-dark:#0a4179; --soft:#f4f7fb; --accent:#0e8f6f;
  --max:760px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--fg);
  font:400 16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","Apple SD Gothic Neo",
       "Malgun Gothic","맑은 고딕",sans-serif;
  word-break:keep-all;overflow-wrap:anywhere;
  padding-bottom:96px; /* sticky call bar */
}
.wrap{max-width:var(--max);margin:0 auto;padding:0 18px}
a{color:var(--brand);text-underline-offset:2px}

/* header */
.site-head{border-bottom:1px solid var(--line);background:#fff}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:58px}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:17px;
       color:var(--fg);text-decoration:none;letter-spacing:-.02em;min-width:0}
.brand-logo{width:31px;height:31px;border-radius:8px;flex:none;display:block}
.brand .txt{min-width:0}
.brand small{display:block;font-weight:400;font-size:11px;color:var(--muted);letter-spacing:0}
.head-tel{font-weight:700;font-size:15px;white-space:nowrap;text-decoration:none;color:var(--brand)}

/* hero */
.hero{background:var(--soft);border-bottom:1px solid var(--line);padding:26px 0 24px}
h1{font-size:26px;line-height:1.35;margin:0 0 10px;letter-spacing:-.03em}
.lead{margin:0;color:var(--muted);font-size:15px}
.crumb{font-size:12px;color:var(--muted);margin:0 0 10px}
.crumb a{color:var(--muted)}

/* body */
main{padding:26px 0 8px}
section{margin:0 0 30px}
h2{font-size:20px;line-height:1.4;margin:0 0 12px;letter-spacing:-.02em;
   padding-left:11px;border-left:4px solid var(--brand)}
h3{font-size:16px;margin:20px 0 8px;letter-spacing:-.02em}
p{margin:0 0 12px}
ul,ol{margin:0 0 12px;padding-left:20px}
li{margin:0 0 6px}
.note{background:var(--soft);border:1px solid var(--line);border-radius:10px;
      padding:14px 16px;font-size:14px;color:var(--muted);margin:0 0 12px}

/* table */
.tbl{width:100%;border-collapse:collapse;font-size:14px;margin:0 0 12px}
.tbl th,.tbl td{border:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}
.tbl th{background:var(--soft);font-weight:600;white-space:nowrap}
.scroll-x{overflow-x:auto}

/* faq */
details{border:1px solid var(--line);border-radius:10px;padding:0;margin:0 0 8px;background:#fff}
summary{cursor:pointer;padding:13px 15px;font-weight:600;font-size:15px;list-style:none;letter-spacing:-.02em}
summary::-webkit-details-marker{display:none}
summary::after{content:"＋";float:right;color:var(--muted);font-weight:400}
details[open] summary::after{content:"－"}
details .a{padding:0 15px 14px;color:var(--muted);font-size:14.5px}

/* internal links */
.related{background:var(--soft);border-radius:12px;padding:18px 18px 8px;margin:34px 0 0}
.related h2{border:0;padding:0;font-size:16px;margin:0 0 12px}
.related ul{list-style:none;padding:0;margin:0}
.related li{margin:0 0 9px;padding-left:15px;position:relative;font-size:14.5px}
.related li::before{content:"→";position:absolute;left:0;color:var(--brand)}

/* footer */
.site-foot{border-top:1px solid var(--line);margin-top:34px;padding:22px 0 30px;
           font-size:13px;color:var(--muted);line-height:1.85}
.site-foot strong{color:var(--fg)}
.disclaimer{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);font-size:12px}

/* ---------- 하단 고정 액션바 ---------- */
.callbar{position:fixed;left:0;right:0;bottom:0;z-index:50;
  padding:14px 14px calc(14px + env(safe-area-inset-bottom));
  background:linear-gradient(to top,
    rgba(255,255,255,.98) 0%, rgba(255,255,255,.94) 62%, rgba(255,255,255,0) 100%);
  pointer-events:none}
.callbar-inner{max-width:var(--max);margin:0 auto;display:flex;gap:10px;
  pointer-events:auto}
.callbar a{flex:1;display:inline-flex;align-items:center;justify-content:center;
  gap:8px;height:54px;border-radius:15px;text-decoration:none;
  font-size:15.5px;font-weight:700;letter-spacing:-.03em;
  transition:transform .12s ease, box-shadow .12s ease, filter .12s ease}
.callbar a svg{width:19px;height:19px;flex:none}
.callbar a:active{transform:translateY(1px) scale(.99)}
.callbar .kakao{background:#FEE500;color:#181600;
  box-shadow:0 6px 18px -4px rgba(214,193,0,.55), inset 0 -1px 0 rgba(0,0,0,.06)}
.callbar .map{background:var(--brand);color:#fff;
  box-shadow:0 6px 18px -4px rgba(15,91,167,.5), inset 0 -1px 0 rgba(0,0,0,.12)}
.callbar a:hover{filter:brightness(1.03)}
@media (min-width:640px){
  .callbar a{height:56px;font-size:16px}
}

@media (min-width:640px){
  h1{font-size:31px} h2{font-size:22px} .hero{padding:34px 0 32px}
}

/* ---------- 상단 공통 이미지 ---------- */
.hero-img{display:block;width:100%;height:auto;margin:0 0 18px;border-radius:10px;
          background:var(--soft)}

/* ---------- 하단 진료 안내 지역 (접기 + 쉼표 나열) ---------- */
.areas{border:1px solid var(--line);border-radius:10px;background:var(--soft);
       margin:16px 0 0;padding:0}
.areas summary{padding:12px 15px;font-size:14px;font-weight:600;color:var(--muted);
               cursor:pointer;list-style:none}
.areas summary::-webkit-details-marker{display:none}
.areas summary::after{content:"＋";float:right;font-weight:400}
.areas[open] summary::after{content:"－"}
.areas .body{padding:0 15px 14px}
.areas p{font-size:12.5px;line-height:1.95;color:var(--muted);margin:0 0 8px;
         word-break:keep-all}
.areas .label{display:block;font-size:11.5px;font-weight:600;color:var(--fg);
              margin:8px 0 2px;letter-spacing:-.01em}

/* ---------- 상단 대표 전화 ---------- */
.tel-big{display:flex;align-items:center;justify-content:space-between;gap:14px;
  margin:0 0 16px;padding:13px 18px;border-radius:12px;background:#fff;
  border:1px solid var(--line);text-decoration:none;
  box-shadow:0 1px 3px rgba(16,24,40,.07)}
.tel-big .lbl{font-size:12.5px;color:var(--muted);white-space:nowrap;line-height:1.4}
.tel-big .lbl b{display:block;font-size:11px;font-weight:600;color:var(--accent)}
.tel-big strong{font-size:27px;font-weight:800;letter-spacing:-.03em;color:var(--brand);
  white-space:nowrap;font-variant-numeric:tabular-nums}
@media (min-width:640px){.tel-big strong{font-size:34px}}


/* ---------- 본원 사이트 링크 (히어로) ---------- */
.site-link{display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin:0 0 16px;padding:13px 16px;border-radius:12px;
  background:#fff;border:1px solid var(--line);text-decoration:none;
  box-shadow:0 1px 3px rgba(16,24,40,.05);
  transition:border-color .12s ease, transform .12s ease}
.site-link:hover{border-color:var(--brand)}
.site-link:active{transform:translateY(1px)}
.site-link .t{min-width:0}
.site-link .t b{display:block;font-size:15px;font-weight:700;color:var(--brand);
  letter-spacing:-.02em;line-height:1.35}
.site-link .t span{display:block;font-size:12px;color:var(--muted);margin-top:1px}
.site-link svg{width:17px;height:17px;flex:none;color:var(--muted)}