/* ══════════════════════════════════════════
   경기대학교 동양문화연구소 — 공통 스타일
   ══════════════════════════════════════════ */
:root{
  --ink:#22201D;          /* 墨 */
  --ink-70:#5A5651;
  --ink-45:#8C877F;
  --paper:#F3F2ED;        /* 白 */
  --paper-2:#EAE8E1;
  --indigo:#1E3A5C;       /* 쪽빛 */
  --indigo-lt:#3B5F87;
  --ochre:#8A6A2F;
  --line:#D6D3CA;
  --maxw:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:'Pretendard Variable',Pretendard,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  letter-spacing:-0.01em;
  word-break:keep-all;
  overflow-wrap:break-word;
}
.serif{font-family:'Noto Serif KR',serif}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.wrap-narrow{max-width:860px;margin:0 auto;padding:0 28px}

/* ── nav ─────────────────────────── */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(243,242,237,.88);
  backdrop-filter:saturate(160%) blur(10px);
  box-shadow:0 1px 0 0 var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{
  font-family:'Noto Serif KR',serif;font-weight:600;font-size:17px;
  letter-spacing:.02em;color:var(--ink);text-decoration:none;
}
.brand span{color:var(--ink-45);font-weight:400;font-size:13px;margin-left:8px;letter-spacing:.14em}
.menu{display:flex;gap:26px;list-style:none}
.menu a{
  color:var(--ink-70);text-decoration:none;font-size:15px;font-weight:500;
  padding:4px 0;position:relative;transition:color .18s;
}
.menu a::after{
  content:'';position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--indigo);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.menu a:hover,.menu a[aria-current="page"],.menu a.on-branch{color:var(--indigo)}

/* 하위 메뉴 (2단계까지) */
.menu .has-sub{position:relative}
.menu .submenu{
  position:absolute;left:-14px;top:100%;
  min-width:150px;padding:8px 0;margin:0;list-style:none;
  background:var(--paper);
  box-shadow:0 0 0 1px var(--line),0 8px 22px rgba(34,32,29,.08);
  opacity:0;visibility:hidden;transform:translateY(-4px);
  transition:opacity .16s,transform .16s,visibility .16s;
}
.menu .has-sub:hover .submenu,
.menu .has-sub:focus-within .submenu{
  opacity:1;visibility:visible;transform:none;
}
.menu .submenu a{
  display:block;padding:7px 16px;font-size:14.5px;font-weight:400;
}
.menu .submenu a::after{display:none}
.menu .submenu a:hover{background:var(--paper-2);color:var(--indigo)}
@media (max-width:860px){
  .menu .submenu{
    position:static;opacity:1;visibility:visible;transform:none;
    box-shadow:none;background:transparent;padding:2px 0 6px 14px;
  }
  .menu .submenu a{padding:5px 0;color:var(--ink-45)}
}
.menu a[aria-current="page"]::after{transform:scaleX(1)}
.menu a.on-branch::after{transform:scaleX(1);opacity:.45}
.menu a:hover::after{transform:scaleX(1)}
.menu-btn{display:none;background:none;border:0;font-size:22px;color:var(--ink);cursor:pointer}

/* ── page head (서브페이지) ──────── */
.phead{padding:76px 0 44px;box-shadow:inset 0 -1px 0 0 var(--line)}
.phead .eyebrow{font-size:13px;letter-spacing:.2em;color:var(--indigo);font-weight:600;margin-bottom:14px}
.phead h1{
  font-family:'Noto Serif KR',serif;font-size:clamp(28px,3.4vw,40px);
  font-weight:600;letter-spacing:-.02em;line-height:1.3;margin-bottom:16px;
}
.phead p{color:var(--ink-70);max-width:56ch;font-size:16.5px}

/* ── section shell ───────────────── */
section{padding:80px 0}
.sec-head{margin-bottom:44px}
.sec-num{font-size:12px;letter-spacing:.22em;color:var(--indigo);font-weight:600;margin-bottom:12px}
.sec-head h2{
  font-family:'Noto Serif KR',serif;font-size:30px;font-weight:600;
  letter-spacing:-.02em;margin-bottom:10px;
}
.sec-head p{color:var(--ink-70);max-width:56ch;font-size:16px}

/* ── 六爻 ────────────────────────── */
.yao{display:none}

/* ── link / button ───────────────── */
.more{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--indigo);text-decoration:none;font-weight:600;font-size:15.5px;
  margin-top:28px;transition:gap .2s;
}
.more:hover{gap:14px}
.more::after{content:'→';font-size:15px}

/* ── footer ──────────────────────── */
footer{background:var(--ink);color:#B9B4AC;padding:56px 0 40px;font-size:14.5px}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:start}
footer .fname{font-family:'Noto Serif KR',serif;color:#F3F2ED;font-size:18px;font-weight:500;margin-bottom:14px;letter-spacing:.02em}
footer p{line-height:1.9}
footer a{color:#B9B4AC}
footer .cr{margin-top:40px;padding-top:20px;box-shadow:inset 0 1px 0 0 rgba(255,255,255,.12);font-size:13px;color:#7E7972}

/* 푸터 링크 목록 */
.f-links{
  list-style:none;display:flex;flex-wrap:wrap;gap:6px 18px;
  margin-top:18px;padding:0;
}
.f-links a{color:#B9B4AC;text-decoration:none;font-size:14px}
.f-links a:hover{color:#F3F2ED}
.f-links a b{font-weight:600;color:#D6D3CA}
.f-links.out{
  margin-top:12px;padding-top:14px;
  box-shadow:inset 0 1px 0 0 rgba(243,242,237,.12);
}
.f-links.out a{font-size:13px;color:#ADA79E}
.f-links.out a::after{content:' \2197';font-size:11px;color:#7E7972}
.f-links.out a:hover{color:#F3F2ED}
.f-links.out a:hover::after{color:#F3F2ED}

/* ── responsive ──────────────────── */
@media (max-width:1024px){ .menu{gap:26px} }
@media (max-width:860px){
  .menu{
    display:none;position:absolute;top:66px;left:0;right:0;
    background:var(--paper);flex-direction:column;gap:0;padding:8px 28px 20px;
    box-shadow:0 1px 0 0 var(--line);
  }
  .menu.open{display:flex}
  .menu li{box-shadow:inset 0 -1px 0 0 var(--line)}
  .menu li:last-child{box-shadow:none}
  .menu a{display:block;padding:14px 0;font-size:16px}
  .menu-btn{display:block;line-height:1;padding:6px 2px}
  section{padding:56px 0}
  .sec-head{margin-bottom:34px}
  .sec-head h2{font-size:25px}
  .phead{padding:48px 0 32px}
  .f-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:480px){
  body{font-size:16px}
  .wrap,.wrap-narrow{padding:0 20px}
  .nav{height:58px}
  .brand{font-size:16px}
  .brand span{display:none}
  .menu{top:58px;padding:6px 20px 16px}
  section{padding:46px 0}
  .sec-head h2{font-size:23px}
  .phead{padding:38px 0 28px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}
a:focus-visible,button:focus-visible{outline:2px solid var(--indigo);outline-offset:3px}