:root{
    --primary:#1f6db6;
    --primary-deep:#194f86;
    --accent:#2b8ed6;
    --ink:#1a1a1a;
    --text:#333;
    --muted:#777;
    --line:#e8e8e8;
    --bg:#f7f7f7;
    --white:#fff;
    --shadow:0 18px 50px rgba(17, 41, 71, .08);
    --radius:22px;
    --max:1280px;
    --panel-w:min(420px, 88vw);
    --push-gap:70px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
html.menu-open,
html.search-open,
body.menu-open,
body.search-open{overflow:hidden}

body{
    font-family:'Noto Sans KR',sans-serif;
    color:var(--text);
    background:#fff;
    line-height:1.6;
    word-break:keep-all;
}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit}
button{border:0;background:none;padding:0}

.wrap{
    width:min(var(--max), calc(100% - 40px));
    margin:0 auto;
}

.site-shell{
    position:relative;
    min-height:100vh;
    background:#fff;
    transition:transform .45s cubic-bezier(.22,.61,.36,1), filter .35s ease;
    will-change:transform;
}

body.menu-open .site-shell{
    transform:translateX(calc((var(--panel-w) - var(--push-gap)) * -1));
    filter:brightness(.92);
}

/* header */
.top-header{
    position:absolute;
    top:0;
    left:0;
    right:0;
    z-index:30;
    border-bottom:1px solid rgba(255,255,255,.18);
}

.top-header .inner{
    width:min(1400px, calc(100% - 40px));
    margin:0 auto;
    height:88px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
}

.brand{
    display:flex;
    align-items:center;
    gap:14px;
    color:#fff;
    min-width:max-content;
}

/* 메인/서브 헤더 구분 */
body.is-sub .top-header{
    border-bottom:1px solid rgba(255,255,255,.14);
}

/* gnb */
.gnb{
    display:flex;
    align-items:center;
    gap:32px;
    color:#fff;
    font-size:15px;
    font-weight:500;
    position:relative;
    z-index:50;
}

.gnb-item{
    position:relative;
    display:flex;
    align-items:center;
    height:88px;
}

.gnb-link{
    display:flex;
    align-items:center;
    height:88px;
    color:#fff;
    font-size:15px;
    font-weight:700;
    line-height:1;
    opacity:.92;
    transition:opacity .2s ease, color .2s ease;
    white-space:nowrap;
}

.gnb-link:hover{
    opacity:1;
}

.gnb-item.is-active .gnb-link{
    opacity:1;
    font-weight:800;
}

/* 핵심: 2차메뉴 기본 숨김 */
.gnb-sub{
    position:absolute;
    top:100%;
    left:50%;
    transform:translateX(-50%) translateY(8px);
    min-width:220px;
    background:rgba(12,24,40,.78);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border:1px solid rgba(255,255,255,.12);
    border-radius:18px;
    padding:12px 0;
    box-shadow:0 20px 40px rgba(0,0,0,.18);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transition:opacity .22s ease, transform .22s ease, visibility .22s ease;
    z-index:70;
}

.gnb-item:hover .gnb-sub{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
    transform:translateX(-50%) translateY(0);
}

.gnb-sub-link{
    display:block;
    padding:11px 18px;
    color:#fff;
    font-size:14px;
    font-weight:600;
    line-height:1.45;
    white-space:nowrap;
    opacity:.92;
    transition:background .2s ease, opacity .2s ease, color .2s ease;
}

.gnb-sub-link:hover{
    background:rgba(255,255,255,.10);
    color:#fff;
    opacity:1;
}

.gnb-empty{
    color:#fff;
    opacity:.9;
    font-size:14px;
}

/* util */
.util{
    display:flex;
    align-items:center;
    gap:12px;
    color:#fff;
    position:relative;
    z-index:80;
}

.util-btn{
    width:42px;
    height:42px;
    border:1px solid rgba(255,255,255,.25);
    background:rgba(255,255,255,.08);
    backdrop-filter:blur(10px);
    border-radius:14px;
    display:grid;
    place-items:center;
    cursor:pointer;
    transition:background .2s ease, border-color .2s ease, transform .2s ease;
    flex:0 0 auto;
}

.util-btn:hover{
    background:rgba(255,255,255,.14);
    border-color:rgba(255,255,255,.38);
    transform:translateY(-1px);
}

.util-btn.menu{
    position:relative;
}

.util-btn.menu:before,
.util-btn.menu span,
.util-btn.menu:after{
    content:'';
    position:absolute;
    left:50%;
    width:16px;
    height:2px;
    background:#fff;
    border-radius:2px;
    transform:translateX(-50%);
    transition:.25s ease;
}

.util-btn.menu:before{top:14px}
.util-btn.menu span{top:20px}
.util-btn.menu:after{top:26px}

body.menu-open .util-btn.menu:before{
    top:20px;
    transform:translateX(-50%) rotate(45deg);
}

body.menu-open .util-btn.menu span{
    opacity:0;
    transform:translateX(-50%) scaleX(.3);
}

body.menu-open .util-btn.menu:after{
    top:20px;
    transform:translateX(-50%) rotate(-45deg);
}

.search-icon{
    position:relative;
    width:18px;
    height:18px;
}

.search-icon:before{
    content:'';
    position:absolute;
    left:0;
    top:0;
    width:12px;
    height:12px;
    border:2px solid #fff;
    border-radius:50%;
}

.search-icon:after{
    content:'';
    position:absolute;
    right:0;
    bottom:0;
    width:7px;
    height:2px;
    background:#fff;
    transform:rotate(45deg);
    transform-origin:right center;
}

/* search panel */
.search-panel{
    position:absolute;
    top:100%;
    right:0;
    margin-top:12px;
    width:min(420px, calc(100vw - 24px));
    opacity:0;
    visibility:hidden;
    transform:translateY(-8px);
    transition:.25s ease;
    z-index:90;
}

body.search-open .search-panel{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
}

.search-box{
    background:rgba(255,255,255,.92);
    border:1px solid rgba(255,255,255,.48);
    border-radius:18px;
    backdrop-filter:blur(16px);
    box-shadow:0 18px 40px rgba(12,26,46,.18);
    padding:14px;
}

.search-form{
    display:flex;
    align-items:center;
    gap:10px;
}

.search-form input{
    flex:1;
    min-width:0;
    height:52px;
    border:0;
    border-radius:14px;
    background:#fff;
    color:#1f2b3a;
    padding:0 18px;
    outline:none;
    font-size:15px;
    box-shadow:inset 0 0 0 1px #e3e9ef;
}

.search-form input::placeholder{
    color:#8a94a1;
}

.search-submit{
    height:52px;
    padding:0 20px;
    border-radius:14px;
    background:var(--primary);
    color:#fff;
    font-weight:700;
    cursor:pointer;
    flex:0 0 auto;
}

/* hero */
.hero{
    position:relative;
    min-height:720px;
    color:#fff;
    overflow:hidden;
}

.hero-slides{position:absolute;inset:0}

.hero-slide{
    position:absolute;
    inset:0;
    background-size:cover;
    background-position:center center;
    opacity:0;
    animation:heroFade 18s infinite;
    transform:scale(1.04);
}

.hero-slide:nth-child(1){animation-delay:0s}
.hero-slide:nth-child(2){animation-delay:6s}
.hero-slide:nth-child(3){animation-delay:12s}

@keyframes heroFade{
    0%{opacity:0;transform:scale(1.08)}
    5%{opacity:1}
    28%{opacity:1;transform:scale(1)}
    33%{opacity:0}
    100%{opacity:0}
}

.hero:before{
    content:'';
    position:absolute;
    inset:0;
    background:linear-gradient(180deg, rgba(7,22,40,.58) 0%, rgba(8,18,34,.30) 28%, rgba(4,14,28,.55) 100%);
    z-index:1;
}

.hero:after{
    content:'';
    position:absolute;
    left:0;
    right:0;
    bottom:0;
    height:180px;
    background:linear-gradient(180deg, rgba(255,255,255,0) 0%, #fff 82%);
    z-index:2;
}

.hero-content{
    position:relative;
    z-index:3;
    min-height:720px;
    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;
    padding:140px 20px 170px;
}

.hero-copy small{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:10px 18px;
    border-radius:999px;
    background:rgba(255,255,255,.12);
    backdrop-filter:blur(10px);
    border:1px solid rgba(255,255,255,.18);
    font-size:14px;
    font-weight:600;
    letter-spacing:.02em;
}

.hero-copy h1{
    margin:24px 0 18px;
    font-size:clamp(36px, 5vw, 64px);
    line-height:1.18;
    letter-spacing:-.045em;
    font-weight:800;
}

.hero-copy p{
    margin:0 auto;
    max-width:840px;
    font-size:18px;
    color:rgba(255,255,255,.92);
}

.hero-actions{
    margin-top:34px;
    display:flex;
    justify-content:center;
    gap:14px;
    flex-wrap:wrap;
}

.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-width:180px;
    height:56px;
    padding:0 24px;
    border-radius:16px;
    font-weight:700;
    font-size:16px;
    transition:.25s ease;
}

.btn-primary{
    background:#fff;
    color:#17324f;
}

.btn-primary:hover{transform:translateY(-2px)}

.btn-outline{
    border:1px solid rgba(255,255,255,.35);
    color:#fff;
    background:rgba(255,255,255,.08);
    backdrop-filter:blur(12px);
}

.hero-pager{
    position:absolute;
    z-index:4;
    left:50%;
    bottom:96px;
    transform:translateX(-50%);
    display:flex;
    gap:10px;
}

.hero-pager span{
    width:10px;
    height:10px;
    border-radius:50%;
    background:rgba(255,255,255,.4)
}

.hero-pager span.active{background:#fff}

/* notice */
.notice-bar{
    position:relative;
    z-index:5;
    margin-top:-52px;
}

.notice-inner{
    width:min(var(--max), calc(100% - 40px));
    margin:0 auto;
    background:#fff;
    border-radius:24px;
    box-shadow:var(--shadow);
    padding:18px 26px;
    display:grid;
    grid-template-columns:120px 1fr auto;
    align-items:center;
    gap:18px;
}

.notice-label{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    height:44px;
    border-radius:999px;
    font-size:15px;
    font-weight:800;
    color:var(--primary);
    background:#eef6ff;
}

.notice-track{
    overflow:hidden;
    white-space:nowrap;
    position:relative
}

.notice-track div{
    display:inline-block;
    padding-left:100%;
    animation:marquee 18s linear infinite;
    font-size:15px;
    color:#444;
}
.notice-track div a{margin-right:20px;}
@keyframes marquee{
    0%{transform:translateX(0)}
    100%{transform:translateX(-100%)}
}

.notice-date{
    font-size:14px;
    color:#888;
    font-weight:600
}

/* section common */
.section{padding:110px 0}
.section.gray{background:var(--bg)}

.section-head{
    text-align:center;
    margin-bottom:48px;
}

.section-head .eyebrow{
    display:inline-block;
    font-size:14px;
    color:var(--primary);
    font-weight:800;
    letter-spacing:.12em;
    text-transform:uppercase;
    margin-bottom:14px;
}

.section-head h2{
    margin:0;
    font-size:44px;
    line-height:1.2;
    letter-spacing:-.04em;
    color:#1d1d1d;
}

.section-head p{
    margin:16px auto 0;
    max-width:900px;
    color:#666;
    font-size:17px;
}

/* intro */
.intro-cards{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:24px;
    margin-top:50px;
}

.intro-card{
    background:#fff;
    border:1px solid #eef0f4;
    border-radius:22px;
    padding:34px 28px;
    text-align:center;
    box-shadow:0 10px 30px rgba(15,30,50,.04);
    transition:.25s ease;
}

.intro-card:hover{
    transform:translateY(-6px);
    box-shadow:0 22px 46px rgba(15,30,50,.08)
}

.intro-icon{
    width:78px;
    height:78px;
    border-radius:22px;
    margin:0 auto 22px;
    display:grid;
    place-items:center;
    background:linear-gradient(135deg,#eff7ff,#f8fbff);
    border:1px solid #e7eef8;
    font-size:34px;
}

.intro-card h3{
    margin:0 0 10px;
    font-size:24px;
    letter-spacing:-.03em;
    color:#202020
}

.intro-card p{
    margin:0;
    color:#666;
    font-size:15px
}

/* culture band */
.culture-band{
    margin-top:52px;
    display:grid;
    grid-template-columns:1.2fr 1fr 1fr 1fr;
    gap:22px;
}

.band-panel{
    background:#fff;
    border-radius:24px;
    overflow:hidden;
    border:1px solid #edf0f4;
    min-height:240px;
    position:relative;
    box-shadow:0 12px 34px rgba(15,30,50,.05);
}

.band-panel.large{
    display:grid;
    grid-template-columns:1.05fr 1.25fr;
}

.band-copy{
    padding:34px 30px;
    background:linear-gradient(135deg,#37abd0,#245aa7);
    color:#fff;
    display:flex;
    flex-direction:column;
    justify-content:center;
}

.band-copy small{
    font-weight:700;
    opacity:.9;
    font-size:13px
}

.band-copy h3{
    margin:10px 0 10px;
    font-size:34px;
    line-height:1.2;
    letter-spacing:-.04em
}

.band-copy p{
    margin:0 0 18px;
    color:rgba(255,255,255,.9);
    font-size:15px
}

.band-copy a{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:132px;
    height:46px;
    border-radius:14px;
    border:1px solid rgba(255,255,255,.5);
    font-weight:700
}

.band-image img{
    width:100%;
    height:100%;
    object-fit:cover
}

.mini-panel{
    padding:28px 24px;
    display:flex;
    flex-direction:column;
    justify-content:space-between;
    background:linear-gradient(180deg,#f7fbff,#f4f8fc);
}

.mini-panel h4{
    margin:0;
    font-size:24px;
    letter-spacing:-.03em;
    color:#222
}

.mini-panel p{
    margin:8px 0 0;
    color:#666;
    font-size:14px
}

.mini-links{
    display:grid;
    gap:12px;
    margin-top:16px
}

.mini-links a{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:14px 16px;
    border-radius:14px;
    background:#fff;
    border:1px solid #ebeff4;
    font-weight:700;
    color:#2b2b2b;
}

.mini-links a span{color:#999}

.mini-panel .btn-more{
    align-self:flex-start;
    margin-top:18px;
    color:var(--primary);
    font-weight:800;
    font-size:14px;
}

/* quick */
.quick-links{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:0;
    border:1px solid var(--line);
    background:#fff;
    overflow:hidden;
    margin-top:54px;
}

.quick-item{
    min-height:220px;
    border-right:1px solid var(--line);
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    text-align:center;
    padding:30px 20px;
    transition:.25s ease;
}

.quick-item:last-child{border-right:0}

.quick-item:hover{background:#fbfdff}

.quick-ico{
    width:82px;
    height:82px;
    border-radius:50%;
    background:#f6f9fc;
    border:1px solid #e8edf2;
    display:grid;
    place-items:center;
    font-size:38px;
    margin-bottom:20px;
    overflow:hidden;
}

.quick-ico img{
    width:100%;
    height:100%;
    object-fit:cover
}

.quick-item h4{
    margin:0 0 8px;
    font-size:24px;
    color:#242424;
    letter-spacing:-.03em
}

.quick-item p{
    margin:0 0 16px;
    color:#666;
    font-size:14px
}

.quick-item a{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-width:124px;
    height:42px;
    border-radius:999px;
    border:1px solid #dce4ec;
    background:#fff;
    font-size:14px;
    font-weight:700;
}

/* events */
.events-grid{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:26px;
}

.event-card{
    background:#fff;
    border:1px solid var(--line);
    overflow:hidden;
    transition:.25s ease;
}

.event-card:hover{
    transform:translateY(-6px);
    box-shadow:0 20px 46px rgba(24,57,94,.09);
    border-color:#dbe6f0;
}

.event-thumb{
    aspect-ratio:16 / 10;
    overflow:hidden;
    background:#d9e2ea;
}

.event-thumb img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .6s ease;
}

.event-card:hover .event-thumb img{
    transform:scale(1.06)
}

.event-body{
    padding:24px 24px 28px;
    text-align:center;
}

.event-body h3{
    margin:0 0 10px;
    font-size:22px;
    color:#1f1f1f;
    letter-spacing:-.03em;
}

.event-body p{
    margin:0;
    color:#666;
    font-size:15px;
    min-height:48px;
}

/* board */
.board-zone{
    display:grid;
    grid-template-columns:1.15fr .85fr;
    gap:28px;
    margin-top:52px;
}

.board-card{
    background:#fff;
    border:1px solid #edf0f4;
    border-radius:24px;
    padding:28px 28px 22px;
    box-shadow:0 12px 30px rgba(14,31,52,.04)
}

.board-title{
    display:flex;
    align-items:center;
    justify-content:space-between;
    margin-bottom:18px
}

.board-title h3{
    margin:0;
    font-size:26px;
    color:#202020;
    letter-spacing:-.03em
}

.board-title a{
    font-size:14px;
    color:var(--primary);
    font-weight:800
}

.board-list li{
    display:grid;
    grid-template-columns:1fr auto;
    gap:16px;
    padding:14px 0;
    border-bottom:1px solid #f0f2f5;
    align-items:center
}

.board-list li:last-child{border-bottom:0}

.board-list a{
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
    color:#2d2d2d;
    font-weight:500;
}

.board-list span{
    color:#999;
    font-size:14px;
    font-weight:600
}

.calendar-box{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:16px;
    margin-top:12px
}

.calendar-item{
    border:1px solid #edf0f4;
    border-radius:18px;
    padding:18px;
    background:#fbfcfd
}

.calendar-item strong{
    display:block;
    font-size:14px;
    color:var(--primary);
    margin-bottom:6px
}

.calendar-item b{
    display:block;
    font-size:18px;
    color:#222;
    line-height:1.4
}

.calendar-item p{
    margin:10px 0 0;
    color:#666;
    font-size:14px
}

/* partner */
.partner-wrap{
    margin-top:50px;
    display:grid;
    grid-template-columns:repeat(6,1fr);
    gap:18px;
}

.partner{
    background:#fff;
    border:1px solid #edf0f4;
    border-radius:18px;
    height:100px;
    display:grid;
    place-items:center;
    font-size:18px;
    font-weight:800;
    color:#4a5563;
    text-align:center;
    padding:0 12px;
}

.partner img{
    max-width:100%;
    max-height:52px;
    object-fit:contain;
}

.partner.gov{font-size:16px}

/* footer */
.footer{
    background:#424242;
    color:#d7d7d7;
    padding:46px 0 56px;
}

.footer-top{
    display:grid;
    grid-template-columns:1.2fr 1fr auto;
    gap:30px;
    align-items:end;
}

.footer-brand{
    display:flex;
    align-items:flex-start;
    gap:14px
}

.footer-brand h4{
    margin:0 0 10px;
    font-size:21px;
    color:#fff;
    letter-spacing:-.03em
}

.footer-brand p,
.footer-info p{
    margin:0;
    font-size:14px;
    color:#d0d0d0;
    line-height:1.9
}

.footer-contact{text-align:right}

.footer-contact strong{
    display:block;
    color:#fff;
    font-size:18px;
    margin-bottom:8px
}

.footer-contact a{
    display:block;
    color:#fff;
    font-size:14px;
    opacity:.9
}

.footer-policy{
    display:flex;
    gap:10px;
    flex-wrap:wrap;
    margin-top:26px;
}

.footer-policy a{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-width:148px;
    height:42px;
    padding:0 18px;
    border:1px solid rgba(255,255,255,.18);
    color:#fff;
    border-radius:10px;
    font-size:14px;
    background:rgba(255,255,255,.04);
}

.copyright{
    text-align:center;
    margin-top:28px;
    padding-top:24px;
    border-top:1px solid rgba(255,255,255,.08);
    font-size:13px;
    color:#bebebe
}

/* side menu */
.menu-overlay{
    position:fixed;
    inset:0;
    background:rgba(9,18,30,.36);
    opacity:0;
    visibility:hidden;
    transition:opacity .35s ease, visibility .35s ease;
    z-index:38;
}

body.menu-open .menu-overlay{
    opacity:1;
    visibility:visible;
}

.side-menu{
    position:fixed;
    top:0;
    right:0;
    width:var(--panel-w);
    height:100vh;
    background:linear-gradient(180deg,#ffffff 0%, #f7fbff 100%);
    box-shadow:-20px 0 50px rgba(12,26,46,.14);
    z-index:40;
    transform:translateX(100%);
    transition:transform .45s cubic-bezier(.22,.61,.36,1);
    display:flex;
    flex-direction:column;
    overflow:hidden;
}

body.menu-open .side-menu{
    transform:translateX(0);
}

.side-menu-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:26px 24px 18px;
    border-bottom:1px solid #ebeff4;
    background:rgba(255,255,255,.92);
    backdrop-filter:blur(16px);
}

.side-menu-title{
    margin:0;
    font-size:22px;
    color:#1a2f4a;
    letter-spacing:-.03em;
    font-weight:800;
}

.side-close{
    width:44px;
    height:44px;
    border-radius:14px;
    border:1px solid #dfe7ef;
    background:#fff;
    cursor:pointer;
    position:relative;
    flex:0 0 auto;
}

.side-close:before,
.side-close:after{
    content:'';
    position:absolute;
    left:50%;
    top:50%;
    width:18px;
    height:2px;
    background:#1f3550;
    border-radius:2px;
}

.side-close:before{transform:translate(-50%,-50%) rotate(45deg)}
.side-close:after{transform:translate(-50%,-50%) rotate(-45deg)}

.side-menu-body{
    flex:1;
    overflow:auto;
    padding:18px 24px 28px;
}

.side-menu-search{
    padding:14px;
    border:1px solid #e6edf5;
    border-radius:20px;
    background:#fff;
    box-shadow:0 10px 24px rgba(19,41,71,.05);
    margin-bottom:22px;
}

.side-menu-search .search-form input{
    box-shadow:inset 0 0 0 1px #e6edf5;
    background:#f9fbfd;
}

.side-nav{
    display:grid;
    gap:12px;
}

.side-nav-link{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:18px 18px;
    border-radius:18px;
    background:#fff;
    border:1px solid #e7edf4;
    color:#1f2d3d;
    font-size:17px;
    font-weight:700;
    transition:.2s ease;
}

.side-nav-link:hover{
    transform:translateX(-3px);
    border-color:#cfe0f1;
    box-shadow:0 12px 24px rgba(25,55,93,.06);
}

.side-nav-link span{
    color:#88a0b8;
    font-weight:700;
}

.side-nav-link.is-active{
    color:var(--primary);
    border-color:#cfe0f1;
    background:#f7fbff;
}

.side-menu-info{
    margin-top:22px;
    padding:22px 20px;
    border-radius:22px;
    background:linear-gradient(135deg,#2d77c2,#1b507f);
    color:#fff;
}

.side-menu-info strong{
    display:block;
    font-size:20px;
    line-height:1.3;
    letter-spacing:-.03em;
    margin-bottom:10px;
}

.side-menu-info p{
    margin:0;
    font-size:14px;
    color:rgba(255,255,255,.88);
}

/* sub visual */
.sub-hero{
    position:relative;
    min-height:340px;
    overflow:hidden;
    background:#d9e6f2;
}

.sub-hero-bg{
    position:absolute;
    inset:0;
    transform:scale(1.02);
}

.sub-hero:after{
    content:'';
    position:absolute;
    left:0;
    right:0;
    bottom:0;
    height:120px;
    background:linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,.96) 100%);
}

.sub-hero .wrap{
    position:relative;
    z-index:2;
    min-height:340px;
    display:flex;
    align-items:flex-end;
    padding-bottom:54px;
}

.sub-hero-content{
    color:#fff;
}

.sub-hero-kicker{
    display:inline-flex;
    align-items:center;
    gap:10px;
    padding:10px 16px;
    border-radius:999px;
    background:rgba(255,255,255,.14);
    border:1px solid rgba(255,255,255,.18);
    backdrop-filter:blur(10px);
    font-size:13px;
    font-weight:700;
    letter-spacing:.04em;
}

.sub-hero-title{
    margin:18px 0 10px;
    font-size:clamp(34px, 5vw, 56px);
    line-height:1.15;
    letter-spacing:-.04em;
    font-weight:800;
}

.sub-hero-desc{
    margin:0;
    max-width:760px;
    font-size:17px;
    color:rgba(255,255,255,.9);
}

.breadcrumb-wrap{
    position:relative;
    z-index:3;
    margin-top:-28px;
}

.breadcrumb{
    width:min(var(--max), calc(100% - 40px));
    margin:0 auto;
    background:rgba(255,255,255,.92);
    border:1px solid rgba(228,234,241,.9);
    box-shadow:var(--shadow);
    backdrop-filter:blur(16px);
    border-radius:18px;
    padding:18px 24px;
    display:flex;
    align-items:center;
    gap:12px;
    color:#4d5b6a;
    font-size:14px;
    font-weight:700;
}

.breadcrumb span{
    color:#9aa7b4;
}

.breadcrumb strong{
    color:var(--primary);
}

/* sub layout */
.sub-layout{
    padding:60px 0 100px;
    background:#fff;
}

.sub-grid{
    display:grid;
    grid-template-columns:280px minmax(0,1fr);
    gap:42px;
    align-items:start;
}

.side-card{
    background:#fff;
    border:1px solid #ebeff4;
    border-radius:28px;
    box-shadow:0 10px 30px rgba(20,40,70,.05);
    overflow:hidden;
}

.side-title{
    padding:34px 28px;
    color:#fff;
    background:linear-gradient(135deg, #33acd1 0%, #2956a8 100%);
}

.side-title small{
    display:block;
    font-size:13px;
    opacity:.86;
    font-weight:700;
    margin-bottom:8px;
}

.side-title h2{
    margin:0;
    font-size:28px;
    line-height:1.2;
    letter-spacing:-.04em;
}

.lnb{
    padding:12px 0;
}

.lnb a{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:16px 28px;
    border-top:1px solid #f0f3f7;
    font-size:15px;
    font-weight:700;
    color:#445160;
}

.lnb a:first-child{border-top:0}

.lnb a:hover,
.lnb a.is-active{
    color:var(--primary);
    background:#f8fbff;
}

.lnb a span{
    color:#b3bec8;
}

.contact-mini{
    margin-top:24px;
    background:#f8fafc;
    border:1px solid #ebeff4;
    border-radius:24px;
    padding:24px 22px;
}

.contact-mini h3{
    margin:0 0 12px;
    font-size:20px;
    color:#1f2a36;
    letter-spacing:-.03em;
}

.contact-mini strong{
    display:block;
    font-size:34px;
    line-height:1;
    color:#1e3550;
    letter-spacing:-.04em;
    margin-bottom:12px;
}

.contact-mini p{
    margin:6px 0 0;
    color:#667382;
    font-size:14px;
    line-height:1.6;
}

.contact-mini b{
    color:#2f3b48;
}

.content-top{
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:20px;
    padding-bottom:26px;
    border-bottom:1px solid #edf1f5;
    margin-bottom:28px;
}

.content-title-wrap h3{
    margin:0;
    font-size:42px;
    line-height:1.2;
    letter-spacing:-.04em;
    color:#181f27;
}

.content-title-wrap p{
    margin:12px 0 0;
    color:#6b7785;
    font-size:16px;
}

.content-tools{
    display:flex;
    align-items:center;
    gap:10px;
}

.tool-btn{
    width:40px;
    height:40px;
    border:1px solid #e3e9ef;
    border-radius:12px;
    display:grid;
    place-items:center;
    color:#69809a;
    background:#fff;
}

.content-article{
    background:#fff;
}

.article-badge{
    display:inline-flex;
    align-items:center;
    gap:10px;
    padding:9px 14px;
    border-radius:999px;
    background:#f1f7fd;
    color:var(--primary);
    font-size:13px;
    font-weight:800;
    margin-bottom:22px;
}

.greeting-box{
    display:grid;
    grid-template-columns:220px minmax(0,1fr);
    gap:30px;
    align-items:start;
}

.greeting-photo{
    border-radius:20px;
    overflow:hidden;
    border:1px solid #e7edf4;
    box-shadow:0 14px 30px rgba(20,40,70,.07);
    background:#f4f6f8;
}

.greeting-copy h4{
    margin:0 0 20px;
    font-size:24px;
    line-height:1.5;
    letter-spacing:-.03em;
    color:#222;
}

.greeting-copy p{
    margin:0 0 22px;
    color:#454f5b;
    font-size:16px;
}

.signature{
    margin-top:42px;
    text-align:right;
    color:#444f5a;
    font-size:16px;
    font-weight:700;
}

.signature strong{
    color:#111;
    font-size:20px;
    letter-spacing:-.03em;
}

.page-meta{
    margin-top:44px;
    display:grid;
    grid-template-columns:1fr 1fr;
    border:1px solid #e8edf2;
    border-radius:16px;
    overflow:hidden;
}

.page-meta div{
    padding:16px 20px;
    background:#fafcfe;
    color:#546273;
    font-size:14px;
    font-weight:700;
    text-align:center;
}

.page-meta div + div{
    border-left:1px solid #e8edf2;
}

/* responsive */
@media (max-width:1180px){
    .gnb{display:none}
    .notice-inner{grid-template-columns:100px 1fr}
    .notice-date{display:none}
    .culture-band{grid-template-columns:1fr 1fr}
    .band-panel.large{grid-column:1 / -1}
    .board-zone{grid-template-columns:1fr}
    .partner-wrap{display:block; grid-template-columns:repeat(3,1fr)}
}

@media (max-width:900px){
    :root{
        --panel-w:min(360px, 92vw);
        --push-gap:42px;
    }

    .hero{min-height:640px}
    .hero-content{min-height:640px;padding-top:130px;padding-bottom:150px}
    .intro-cards,
    .events-grid,
    .quick-links{grid-template-columns:1fr}

    .quick-item{
        border-right:0;
        border-bottom:1px solid var(--line);
        min-height:unset;
        padding:26px 20px
    }

    .quick-item:last-child{border-bottom:0}
    .culture-band{grid-template-columns:1fr}
    .band-panel.large{display:block}
    .band-copy{min-height:240px}
    .partner-wrap{grid-template-columns:repeat(2,1fr)}
    .footer-top{grid-template-columns:1fr;align-items:start}
    .footer-contact{text-align:left}
    .section{padding:84px 0}
    .section-head h2{font-size:34px}

    .sub-grid{
        grid-template-columns:1fr;
        gap:28px;
    }
}

@media (max-width:820px){
    .sub-hero{
        min-height:280px;
    }

    .sub-hero .wrap{
        min-height:280px;
        padding-bottom:42px;
    }

    .content-title-wrap h3{
        font-size:34px;
    }

    .greeting-box{
        grid-template-columns:1fr;
    }

    .greeting-photo{
        max-width:260px;
    }

    .page-meta{
        grid-template-columns:1fr;
    }

    .page-meta div + div{
        border-left:0;
        border-top:1px solid #e8edf2;
    }
}

@media (max-width:640px){
    :root{
        --panel-w:min(320px, 92vw);
        --push-gap:18px;
    }

    .wrap{width:min(var(--max), calc(100% - 24px))}
    .top-header .inner{width:calc(100% - 24px);height:78px}
    .brand img{max-width:170px;height:auto}
    .hero-copy h1{font-size:34px}
    .hero-copy p{font-size:15px}
    .btn{min-width:150px;height:50px;font-size:15px}
    .notice-inner{width:calc(100% - 24px);padding:16px 18px;border-radius:18px}
    .notice-label{height:38px;font-size:13px}
    .section-head h2{font-size:28px}
    .section-head p{font-size:15px}
    .intro-card{padding:28px 22px}
    .event-body h3{font-size:19px}
    .board-card{padding:22px 18px}
    .calendar-box{grid-template-columns:1fr}
    .partner-wrap{grid-template-columns:1fr}
    .footer{padding:38px 0 46px}

    .search-panel{
        right:-2px;
        width:min(360px, calc(100vw - 24px));
    }

    .side-menu-head{
        padding:20px 18px 16px;
    }

    .side-menu-body{
        padding:16px 18px 22px;
    }

    .side-nav-link{
        padding:16px 16px;
        font-size:16px;
    }

    .sub-hero-title{font-size:32px}
    .sub-hero-desc{font-size:15px}

    .breadcrumb{
        width:calc(100% - 24px);
        padding:14px 16px;
        font-size:13px;
        flex-wrap:wrap;
    }

    .side-title{
        padding:26px 22px;
    }

    .side-title h2{
        font-size:24px;
    }

    .lnb a{
        padding:15px 22px;
        font-size:14px;
    }

    .content-top{
        display:block;
    }

    .content-tools{
        margin-top:18px;
    }

    .content-title-wrap h3{
        font-size:28px;
    }

    .greeting-copy h4{
        font-size:22px;
    }

    .greeting-copy p{
        font-size:15px;
    }
}