:root{--g:#1f7a5c;--g2:#2f9e78;--gd:#134d3a;--y:#f3b641;--ink:#1d2a26;--mut:#5d6b66;--bg:#fff;--soft:#f2f7f4;--line:#dde7e2}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Noto Sans KR",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;word-break:keep-all}
a{color:inherit;text-decoration:none}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.narrow{max-width:820px}
.center{text-align:center}

/* header */
.hd{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hd-in{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:10px}
.mark{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--g2),var(--gd));color:#fff;font-weight:800;font-size:15px}
.lt{font-size:18px;font-weight:500}.lt b{font-weight:800;color:var(--g)}
.gnb{display:flex;gap:4px}
.gnb a{padding:8px 13px;border-radius:8px;font-size:15px;font-weight:500;color:var(--mut)}
.gnb a:hover{background:var(--soft);color:var(--g)}
.gnb a.on{color:var(--g);font-weight:700;background:var(--soft)}
.burger{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer}
.burger span{display:block;height:2px;background:var(--ink);margin:6px 8px;transition:.2s}

/* hero */
.hero{background:linear-gradient(120deg,rgba(19,77,58,.94),rgba(31,122,92,.85)),radial-gradient(circle at 80% 20%,#f3b641 0,transparent 40%),#134d3a;color:#fff;padding:110px 0 120px;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;right:-120px;bottom:-160px;width:520px;height:520px;border-radius:50%;border:70px solid rgba(255,255,255,.06)}
.hero h1{font-size:clamp(30px,5vw,52px);line-height:1.3;font-weight:800;margin:14px 0 22px}
.hero .lead{max-width:680px;font-size:17px;opacity:.9}
.kicker{font-size:13px;letter-spacing:.18em;font-weight:700;color:var(--g2)}
.kicker.light{color:var(--y)}
.btns{display:flex;gap:12px;margin-top:34px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 28px;border-radius:999px;background:var(--y);color:#2a1f00;font-weight:700;border:0;cursor:pointer;font-size:15px;font-family:inherit;transition:.2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.15)}
.btn.ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.6)}
.btn.white{background:#fff;color:var(--gd)}

/* sections */
.sec{padding:80px 0}
.sec.soft{background:var(--soft)}
.h2{font-size:clamp(24px,3.4vw,34px);font-weight:800;margin:6px 0 12px}
.sub{color:var(--mut);margin-bottom:36px}
.vals{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:20px}
.val{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 22px;border-top:4px solid var(--g2)}
.val b{display:block;font-size:18px;margin-bottom:6px;color:var(--gd)}
.val span{color:var(--mut);font-size:15px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px 26px;display:flex;flex-direction:column;transition:.25s}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(19,77,58,.12);border-color:var(--g2)}
.card-ic,.sub-ic{width:56px;height:56px;border-radius:14px;display:grid;place-items:center;background:var(--soft);color:var(--g);margin-bottom:18px}
.card h3{font-size:20px;margin-bottom:8px}
.card p{color:var(--mut);font-size:15px;flex:1}
.more{margin-top:18px;color:var(--g);font-weight:700;font-size:14px}
.band{background:var(--gd);color:#fff;padding:60px 0}
.band-in{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.band h2{font-size:26px;margin-bottom:6px}.band p{opacity:.85}

/* sub pages */
.sub-hero{background:linear-gradient(120deg,var(--gd),var(--g));color:#fff;padding:70px 0 64px}
.sub-hero .sub-ic{background:rgba(255,255,255,.14);color:#fff}
.sub-hero .kicker{color:var(--y)}
.sub-hero h1{font-size:clamp(28px,4vw,40px);font-weight:800;margin:4px 0 10px}
.sub-hero .lead{opacity:.9;max-width:640px}
.purpose{font-size:19px;line-height:1.9;border-left:5px solid var(--y);background:var(--soft);padding:28px 30px;border-radius:0 14px 14px 0;margin-top:14px}
.biz-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.biz{display:flex;gap:20px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px}
.num{flex:none;width:48px;height:48px;border-radius:12px;background:var(--g);color:#fff;font-weight:800;display:grid;place-items:center}
.biz h3{font-size:18px;margin-bottom:6px}
.biz p{color:var(--mut);font-size:15px}
.chips{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:18px 0 30px}
.chip{background:#fff;border:1px solid var(--line);padding:10px 18px;border-radius:999px;font-size:15px;font-weight:500}
.chip:hover{border-color:var(--g);color:var(--g)}

/* contact */
.contact{display:grid;grid-template-columns:1fr 1.3fr;gap:48px}
.info dl{display:grid;grid-template-columns:90px 1fr;gap:12px;margin:18px 0 24px}
.info dt{font-weight:700;color:var(--gd)}.info dd{color:var(--mut)}
.note{font-size:14px;color:var(--mut);background:var(--soft);padding:14px 16px;border-radius:10px}
.form{display:grid;gap:16px;background:var(--soft);padding:30px;border-radius:18px}
.form label{display:grid;gap:6px;font-weight:500;font-size:15px}
.form input,.form select,.form textarea{font:inherit;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:#fff}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--g2);border-color:transparent}

/* footer */
.ft{background:#0f2b22;color:#b9cbc3;padding:48px 0 24px;font-size:14px}
.ft-in{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
.ft-name{color:#fff;font-weight:800;font-size:17px;margin-bottom:6px}
.ft-nav{display:flex;flex-wrap:wrap;gap:6px 18px;align-content:flex-start;max-width:460px}
.ft-nav a:hover{color:#fff}
.copy{margin-top:30px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);font-size:13px}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s,transform .6s}
.reveal.in{opacity:1;transform:none}

@media (max-width:980px){
  .burger{display:block}
  .gnb{position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;padding:10px 16px 18px;border-bottom:1px solid var(--line);display:none}
  .nav-open .gnb{display:flex}
  .gnb a{padding:12px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .vals{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:680px){
  .wrap{padding:0 16px}
  .sec{padding:56px 0}
  .hero{padding:70px 0 80px}
  .cards,.vals,.biz-list,.contact{grid-template-columns:1fr}
  .biz{padding:20px;gap:14px}
  .lt{font-size:16px}
}

/* 한국어 교실 */
.class-card{background:#fff;border:1px solid var(--line);border-top:5px solid var(--y);border-radius:18px;padding:10px 30px;box-shadow:0 10px 30px rgba(19,77,58,.08)}
.class-row{display:grid;grid-template-columns:120px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--line);font-size:17px}
.class-row:last-child{border-bottom:0}
.class-k{font-weight:700;color:var(--gd)}
.class-v b{color:var(--g);font-size:19px}
.class-v a{color:var(--g)}
.class-note{text-align:center;color:var(--mut);margin:26px 0 18px}
@media (max-width:680px){.class-card{padding:6px 18px}.class-row{grid-template-columns:1fr;gap:2px;font-size:16px}}

/* footer 사업자 정보 */
.ft-info{display:flex;flex-wrap:wrap;gap:4px 18px;margin-top:12px;color:#cfdcd6}
.ft-info a:hover{color:#fff}