:root{--navy:#141a4a;--navy2:#0e1338;--blue:#1d4fb8;--yel:#ffd21f;--ink:#14173a;--sub:#5d6183;--mute:#9a9db5;--line:#e4e5ee;--bg:#f4f4f1}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{font-family:'Pretendard Variable',Pretendard,-apple-system,'Apple SD Gothic Neo','Noto Sans KR','Malgun Gothic',sans-serif;color:var(--ink);background:#fff;line-height:1.65;word-break:keep-all;letter-spacing:-.01em;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1240px;margin:0 auto;padding:0 28px}
.serif{font-family:'Noto Serif KR',serif;letter-spacing:-.02em}

/* 머리 */
.hd{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.hd .wrap{display:flex;align-items:center;height:76px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:42px;height:42px;border-radius:50%}
.brand b{display:block;font-size:17px;font-weight:800;line-height:1.25}
.brand small{display:block;font-size:12px;color:var(--mute);font-weight:500;letter-spacing:0}
.nav{margin-left:auto;display:flex;align-items:center;gap:30px}
.nav a{font-size:15.5px;font-weight:600;color:#3b3f63;position:relative;padding:6px 0}
.nav a:hover,.nav a.on{color:var(--ink)}
.nav a.on:after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--ink)}
.nav a.join{background:var(--ink);color:#fff;padding:10px 18px;border-radius:6px}
.nav a.join:hover{background:var(--blue)}
.mbtn{display:none;margin-left:auto;width:44px;height:44px;border:0;background:none;cursor:pointer}
.mbtn span{display:block;width:22px;height:2px;background:var(--ink);margin:5px auto}

/* 첫 화면 */
.hero{padding:64px 0 0}
.hgrid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:end}
.kicker{font-size:15px;font-weight:700;color:var(--blue)}
.hero h1{font-size:64px;line-height:1.16;font-weight:800;letter-spacing:-.045em;margin-top:18px}
.hero .lede{font-size:18.5px;color:var(--sub);margin-top:24px;max-width:470px}
.hact{display:flex;gap:28px;align-items:center;margin-top:36px;flex-wrap:wrap}
.cta{display:inline-flex;align-items:center;gap:10px;background:var(--ink);color:#fff;font-weight:700;padding:16px 26px;border-radius:8px;font-size:16px}
.cta:hover{background:var(--blue)}
.tlink{font-weight:700;border-bottom:2px solid var(--ink);padding-bottom:3px}
.hfig{position:relative}
.hfig .frame{position:relative;aspect-ratio:4/5;overflow:hidden;border-radius:4px;background:#ddd}
.hfig .sl{position:absolute;left:0;top:0;width:100%;height:100%;background-size:cover;background-position:center;opacity:0;transition:opacity 1.2s ease}
.hfig .sl.on{opacity:1}
.hfig figcaption{display:flex;justify-content:space-between;font-size:13px;color:var(--mute);margin-top:12px}
.hfig .cnt{font-variant-numeric:tabular-nums;color:var(--ink);font-weight:700}
.facts{display:grid;grid-template-columns:repeat(3,1fr) 1.6fr;border-top:1px solid var(--ink);margin-top:56px}
.facts>div{padding:24px 0 30px}
.facts>div+div{padding-left:28px;border-left:1px solid var(--line)}
.facts b{display:block;font-size:44px;font-weight:800;letter-spacing:-.04em;line-height:1}
.facts span{display:block;font-size:14px;color:var(--sub);margin-top:10px}
.facts .next a{display:block;font-size:19px;font-weight:700;margin-top:8px;line-height:1.45}
.facts .next a i{font-style:normal;color:var(--blue)}

/* 칸 머리 */
.sec{padding:110px 0}
.sec.tint{background:var(--bg)}
.sh{display:flex;align-items:baseline;gap:18px;border-bottom:1px solid var(--ink);padding-bottom:18px;margin-bottom:44px}
.sh .no{font-size:14px;font-weight:700;color:var(--mute);font-variant-numeric:tabular-nums}
.sh h2{font-size:34px;font-weight:800;letter-spacing:-.035em}
.sh a{margin-left:auto;font-size:14.5px;font-weight:600;color:var(--sub)}
.sh a:hover{color:var(--ink)}

/* 인사말 */
.greet{display:grid;grid-template-columns:380px 1fr;gap:72px;align-items:start}
.greet .pic{aspect-ratio:4/5;overflow:hidden;border-radius:4px;background:#eee}
.greet .pic img{width:100%;height:100%;object-fit:cover;object-position:center 20%}
.greet blockquote{font-family:'Noto Serif KR',serif;font-size:38px;line-height:1.45;font-weight:700;letter-spacing:-.03em}
.greet .body{margin-top:28px;font-size:17px;color:#41456a;max-width:620px}
.greet .body p+p{margin-top:14px}
.greet .who{margin-top:32px;font-size:15px;color:var(--sub)}
.greet .who b{display:block;font-size:24px;color:var(--ink);font-weight:800;margin-top:2px;letter-spacing:.08em}

/* 행사 */
.event{background:var(--navy);color:#fff}
.event .sh{border-color:rgba(255,255,255,.5)}
.event .sh .no,.event .sh a{color:rgba(255,255,255,.55)}
.egrid{display:grid;grid-template-columns:1fr 1fr 300px;gap:48px;align-items:start}
.edate b{display:block;font-size:150px;line-height:.9;font-weight:800;letter-spacing:-.06em;color:var(--yel)}
.edate span{display:block;margin-top:18px;font-size:18px;font-weight:600}
.einfo h3{font-size:34px;font-weight:800;letter-spacing:-.03em;line-height:1.3}
.einfo dl{margin-top:26px;display:grid;grid-template-columns:72px 1fr;row-gap:12px;font-size:17px}
.einfo dt{color:rgba(255,255,255,.55)}
.einfo .elink{display:inline-block;margin-top:30px;font-weight:700;border-bottom:2px solid var(--yel);padding-bottom:3px}
.event .poster{border-radius:4px;box-shadow:0 20px 50px rgba(0,0,0,.35)}

/* 메뉴 목록 */
.idx{list-style:none}
.idx a{display:grid;grid-template-columns:70px 1fr 1.3fr 40px;gap:20px;align-items:center;padding:28px 6px;border-bottom:1px solid var(--line);transition:background .2s,padding .2s}
.idx a:hover{background:var(--bg);padding-left:16px}
.idx .n{font-size:14px;font-weight:700;color:var(--mute);font-variant-numeric:tabular-nums}
.idx h3{font-size:26px;font-weight:800;letter-spacing:-.03em}
.idx p{color:var(--sub);font-size:16px}
.idx .ar{font-size:22px;text-align:right}

/* 회관 */
.hall{position:relative;aspect-ratio:21/9;border-radius:4px;overflow:hidden;background:var(--navy) center/cover}
.hall .cap{position:absolute;left:0;right:0;bottom:0;padding:40px;color:#fff;background:linear-gradient(0deg,rgba(10,13,40,.85),rgba(10,13,40,0))}
.hall .cap small{font-size:14px;font-weight:700;color:var(--yel)}
.hall .cap h3{font-size:38px;font-weight:800;letter-spacing:-.035em;margin-top:6px}
.hall .cap p{opacity:.85;margin-top:6px;max-width:560px}

/* 갤러리 */
.gmain{display:grid;grid-template-columns:2fr 1fr 1fr;grid-template-rows:240px 240px;gap:12px}
.gmain a{position:relative;overflow:hidden;border-radius:4px;background:#ddd center/cover}
.gmain a:first-child{grid-row:span 2}
.gmain a span{position:absolute;left:14px;bottom:12px;color:#fff;font-size:14px;font-weight:600;text-shadow:0 1px 8px rgba(0,0,0,.6)}

/* 후원 */
.give{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:end}
.give h3{font-size:40px;font-weight:800;letter-spacing:-.04em;line-height:1.25}
.give p{color:var(--sub);margin-top:16px;font-size:17px}
.acc{border:1px solid var(--ink);border-radius:4px;padding:30px}
.acc .bk{font-size:15px;color:var(--sub)}
.acc .no{font-size:34px;font-weight:800;letter-spacing:-.01em;margin-top:4px;font-variant-numeric:tabular-nums}
.acc .ow{margin-top:4px;font-size:15px}
.copy{margin-top:20px;background:var(--ink);color:#fff;border:0;font-weight:700;padding:12px 20px;border-radius:6px;cursor:pointer;font-size:15px;font-family:inherit}

/* 속 쪽 머리 */
.ph1{padding:72px 0 0}
.ph1 small{font-size:15px;font-weight:700;color:var(--blue)}
.ph1 h1{font-size:52px;font-weight:800;letter-spacing:-.045em;margin-top:10px;line-height:1.2}
.ph1 p{color:var(--sub);margin-top:12px;font-size:18px;padding-bottom:40px;border-bottom:1px solid var(--ink)}
.ph1+.sec{padding-top:60px}
.box{border:1px solid var(--line);border-radius:4px;padding:36px;background:#fff}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.tl{list-style:none}
.tl li{display:grid;grid-template-columns:150px 1fr;padding:18px 0;border-bottom:1px solid var(--line)}
.tl b{font-size:19px;font-weight:800;font-variant-numeric:tabular-nums}
.tl span{color:var(--sub)}
table.t{width:100%;border-collapse:collapse;font-size:16px}
table.t th,table.t td{border-bottom:1px solid var(--line);padding:15px 4px;text-align:left;vertical-align:top}
table.t th{color:var(--sub);font-weight:600;width:150px}
.sym{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.sym img{width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:4px;background:#fff}
.sym h4{margin-top:14px;font-size:18px;font-weight:800}
.sym p{font-size:15px;color:var(--sub)}
h3.sub{font-size:24px;font-weight:800;letter-spacing:-.03em;margin-bottom:18px}

/* 게시판·가입 */
.form{display:grid;gap:16px}
.form label{font-weight:700;font-size:14.5px}
.form input,.form textarea{width:100%;margin-top:6px;padding:14px;border:1px solid #cfd1de;border-radius:6px;font-size:16px;font-family:inherit;background:#fff;color:var(--ink);-webkit-appearance:none}
.form input:focus,.form textarea:focus{outline:0;border-color:var(--ink)}
.form textarea{min-height:170px;resize:vertical}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form .chk{display:flex;gap:10px;align-items:flex-start;font-weight:500;font-size:14.5px;color:var(--sub)}
.form .chk input{width:18px;height:18px;margin-top:3px;flex:none;-webkit-appearance:checkbox}
.form button{background:var(--ink);color:#fff;border:0;font-weight:700;padding:16px;border-radius:6px;cursor:pointer;font-size:16px;font-family:inherit}
.msg{padding:14px 16px;border-radius:6px;background:#eef1fb;font-weight:600;display:none}
.msg.err{background:#fdecec;color:#a12626}
.posts{list-style:none;border-top:1px solid var(--ink)}
.posts li{border-bottom:1px solid var(--line);padding:20px 4px;cursor:pointer}
.posts li h4{font-size:18px;font-weight:700}
.posts li .m{font-size:13.5px;color:var(--mute);margin-top:4px}
.posts li .b{display:none;margin-top:12px;white-space:pre-wrap;color:#3b3f63;font-size:16px}
.posts li.open .b{display:block}
.empty{color:var(--mute);padding:40px 4px;cursor:default!important}
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:28px 20px}
.gal img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:4px;background:#eee}
.gal span{display:block;margin-top:10px;font-size:15px;font-weight:600}

/* 꼬리 */
.ft{background:var(--navy2);color:#a9acc8;padding:80px 0 40px;font-size:14.5px}
.ft .big{font-size:56px;font-weight:800;color:#fff;letter-spacing:-.045em;line-height:1.1}
.ft .row{display:flex;gap:40px;flex-wrap:wrap;margin-top:48px;padding-top:28px;border-top:1px solid rgba(255,255,255,.15)}
.ft .fl{display:flex;gap:22px;flex-wrap:wrap;margin-left:auto}
.ft .fl a:hover{color:#fff}

/* 휴대폰 */
@media (max-width:960px){
  .wrap{padding:0 20px}
  .hd .wrap{height:64px}
  .brand b{font-size:16px}
  .nav{display:none;position:absolute;left:0;right:0;top:64px;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:6px 20px 20px;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .nav a{padding:15px 0;font-size:18px;border-bottom:1px solid var(--line)}
  .nav a.on:after{display:none}
  .nav a.join{margin-top:14px;text-align:center;border:0}
  .mbtn{display:block}
  .hero{padding:36px 0 0}
  .hgrid{grid-template-columns:1fr;gap:32px}
  .hero h1{font-size:40px}
  .hero .lede{font-size:16.5px}
  .hfig .frame{aspect-ratio:4/3}
  .facts{grid-template-columns:1fr 1fr 1fr;margin-top:36px}
  .facts b{font-size:32px}
  .facts .next{grid-column:1/-1;padding-left:0!important;border-left:0!important;border-top:1px solid var(--line)}
  .sec{padding:72px 0}
  .sh h2{font-size:26px}
  .greet{grid-template-columns:1fr;gap:32px}
  .greet .pic{max-width:320px}
  .greet blockquote{font-size:27px}
  .egrid{grid-template-columns:1fr;gap:30px}
  .edate b{font-size:96px}
  .einfo h3{font-size:27px}
  .event .poster{max-width:280px}
  .idx a{grid-template-columns:44px 1fr 28px;padding:22px 2px}
  .idx p{grid-column:2;grid-row:2;font-size:14.5px}
  .idx .ar{grid-column:3;grid-row:1}
  .idx h3{font-size:21px}
  .hall{aspect-ratio:4/3}
  .hall .cap{padding:24px}
  .hall .cap h3{font-size:26px}
  .gmain{grid-template-columns:1fr 1fr;grid-template-rows:200px 130px 130px}
  .gmain a:first-child{grid-column:span 2;grid-row:auto}
  .gmain a:nth-child(n+6){display:none}
  .give{grid-template-columns:1fr;gap:28px}
  .give h3{font-size:30px}
  .acc .no{font-size:26px}
  .ph1{padding:44px 0 0}
  .ph1 h1{font-size:36px}
  .grid2,.gal{grid-template-columns:1fr}
  .sym{grid-template-columns:1fr 1fr}
  .tl li{grid-template-columns:110px 1fr}
  table.t th{width:100px}
  .box{padding:24px}
  .form .row{grid-template-columns:1fr}
  .ft .big{font-size:36px}
  .ft .fl{margin-left:0}
}

/* 팝업 */
.pop{position:fixed;left:0;top:0;right:0;bottom:0;z-index:100;background:rgba(10,13,40,.55);display:none;align-items:center;justify-content:center;padding:20px}
.pop.on{display:flex}
.pop .pin{background:#fff;width:100%;max-width:400px;border-radius:6px;overflow:hidden;box-shadow:0 30px 70px rgba(0,0,0,.35);max-height:92vh;display:flex;flex-direction:column}
.pop .pim{display:block;overflow:auto}
.pop .pim img{width:100%}
.pop .pbt{display:flex;border-top:1px solid var(--line);flex:none}
.pop .pbt button{flex:1;background:#fff;border:0;padding:15px 10px;font-size:15px;font-family:inherit;font-weight:600;color:var(--sub);cursor:pointer}
.pop .pbt button+button{border-left:1px solid var(--line);color:var(--ink);font-weight:800}

/* ===== v5 첫 화면 : 남색 + 큰 마크 ===== */
.hero{background:radial-gradient(ellipse 60% 70% at 75% 45%,#26308c 0%,var(--navy) 55%,var(--navy2) 100%);color:#fff;padding:72px 0 0;overflow:hidden;position:relative}
.hgrid{grid-template-columns:1.1fr 1fr;align-items:center;gap:40px}
.hero .kicker{color:var(--yel);letter-spacing:.12em;font-size:13px}
.hero h1{font-size:68px}
.hero .lede{color:rgba(255,255,255,.78)}
.hero .cta{background:var(--yel);color:var(--navy2)}
.hero .cta:hover{background:#fff}
.hero .tlink{border-color:#fff}
.mark{position:relative;width:100%;max-width:540px;aspect-ratio:1;margin-left:auto}
.mark .ring{position:absolute;left:-8%;top:-8%;width:116%;height:116%;animation:spin 90s linear infinite}
.mark img{position:absolute;left:19%;top:19%;width:62%;height:62%;border-radius:50%;box-shadow:0 0 0 6px rgba(255,255,255,.9),0 30px 80px rgba(0,0,0,.45);animation:popin 1.2s cubic-bezier(.2,.8,.2,1) both .2s}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes popin{from{opacity:0;transform:scale(.82)}to{opacity:1;transform:none}}
.hero .facts{border-top-color:rgba(255,255,255,.55)}
.hero .facts>div+div{border-left-color:rgba(255,255,255,.14)}
.hero .facts span{color:rgba(255,255,255,.6)}
.hero .facts b em{font-style:normal}
.hero .facts .next a i{color:var(--yel)}

/* 흐르는 띠 */
.marq{background:var(--yel);color:var(--navy2);overflow:hidden;white-space:nowrap;border-bottom:1px solid var(--navy2)}
.marq .mt{display:inline-block;padding:16px 0;animation:marq 38s linear infinite;font-weight:800;font-size:18px;letter-spacing:.02em}
.marq span{margin:0 26px}
.marq i{font-style:normal;font-size:9px;vertical-align:3px}
@keyframes marq{to{transform:translateX(-50%)}}

/* 비전 */
.vision{background:var(--bg)}
.vg{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--ink)}
.vc{padding:40px 34px 46px 0;position:relative}
.vc+.vc{padding-left:34px;border-left:1px solid #d9dae4}
.vn{font-size:14px;font-weight:700;color:var(--mute)}
.vc h3{font-size:52px;font-weight:800;letter-spacing:-.05em;margin-top:18px;line-height:1}
.vc b{display:block;font-size:13px;letter-spacing:.2em;color:var(--blue);margin-top:12px}
.vc p{margin-top:20px;color:var(--sub);font-size:16px}
.vc:before{content:"";position:absolute;left:0;top:-1px;height:3px;width:0;background:var(--blue);transition:width .9s ease .2s}
.vc+.vc:before{left:34px}
.vc.in:before{width:60px}

/* 카운트다운 */
.cd{display:flex;gap:10px;margin-top:28px}
.cd div{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:6px;min-width:70px;padding:12px 8px;text-align:center}
.cd b{display:block;font-size:30px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.1;color:#fff}
.cd small{font-size:12.5px;color:rgba(255,255,255,.6)}

/* 오늘의 모교 */
.school{display:grid;grid-template-columns:1.2fr 1fr;gap:56px;align-items:center}
.school .frame{aspect-ratio:3/2}
.school h3{font-size:36px;font-weight:800;letter-spacing:-.04em;line-height:1.3}
.school p{margin-top:16px;color:var(--sub);font-size:17px}

/* 나타나기 */
.js .rv{opacity:0;transform:translateY(28px);transition:opacity .9s ease,transform .9s cubic-bezier(.2,.8,.2,1)}
.js .rv.in{opacity:1;transform:none}
.js .rvl>*{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.2,1)}
.js .rvl.in>*{opacity:1;transform:none}
.js .rvl.in>*:nth-child(2){transition-delay:.08s}.js .rvl.in>*:nth-child(3){transition-delay:.16s}.js .rvl.in>*:nth-child(4){transition-delay:.24s}.js .rvl.in>*:nth-child(5){transition-delay:.32s}
.js .hero .rv:nth-child(2){transition-delay:.12s}.js .hero .rv:nth-child(3){transition-delay:.24s}.js .hero .rv:nth-child(4){transition-delay:.36s}
.gmain a{transition:transform .5s ease}
.gmain a:hover{transform:scale(1.015)}
.event .poster{transition:transform .5s ease}
.event .poster:hover{transform:translateY(-6px) rotate(-1deg)}
.idx .ar{transition:transform .25s}
.idx a:hover .ar{transform:translateX(6px)}
@media (prefers-reduced-motion:reduce){.mark .ring,.marq .mt{animation:none}.js .rv,.js .rvl>*{opacity:1;transform:none;transition:none}}

@media (max-width:960px){
  .hero{padding:36px 0 0}
  .hgrid{grid-template-columns:1fr;gap:20px}
  .mark{order:-1;max-width:300px;margin:0 auto 8px}
  .hero h1{font-size:40px}
  .marq .mt{font-size:15px;padding:12px 0}
  .vg{grid-template-columns:1fr}
  .vc,.vc+.vc{padding:30px 0 34px;border-left:0;border-top:1px solid #d9dae4}
  .vc+.vc:before{left:0}
  .vc h3{font-size:40px}
  .cd div{min-width:0;flex:1}
  .cd b{font-size:24px}
  .school{grid-template-columns:1fr;gap:28px}
  .school h3{font-size:27px}
}