:root {
  --navy-950:#071323;
  --navy-900:#0b1d33;
  --navy-800:#15314f;
  --navy-700:#24486d;
  --ink:#142033;
  --muted:#667085;
  --line:#dbe3ec;
  --paper:#f5f8fb;
  --white:#fff;
  --accent:#a8792b;
  --accent-soft:#f6efe2;
  --shadow:0 16px 50px rgba(8,25,48,.08);
  font-family:"Noto Sans KR",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);line-height:1.75}
a{color:inherit}
.hero{background:linear-gradient(135deg,var(--navy-950),var(--navy-800));color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
.hero-inner{max-width:1160px;margin:0 auto;padding:64px 28px 56px}
.back-link{display:inline-flex;text-decoration:none;font-size:13px;letter-spacing:.08em;color:#c8d4e2;margin-bottom:42px}
.eyebrow,.section-kicker{font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--accent);text-transform:uppercase}
.hero .eyebrow{color:#d5ad69}
h1,h2{font-family:"Noto Serif KR",serif;margin:0}
h1{font-size:clamp(38px,6vw,68px);line-height:1.15;margin-top:8px}
.hero-copy{font-size:18px;max-width:800px;color:#d8e0e9;margin:22px 0 28px}
.hero-meta{display:flex;gap:10px;flex-wrap:wrap}
.hero-meta span{border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);padding:7px 11px;border-radius:999px;font-size:12px;color:#dce5ef}
main{max-width:1160px;margin:0 auto;padding:36px 28px 72px}
.notice{display:grid;grid-template-columns:220px 1fr;gap:28px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:16px;padding:26px 28px;box-shadow:var(--shadow)}
.notice h2{font-size:22px;margin-top:4px}.notice p{margin:0;color:#4a586a;font-size:14px}
.research-model,.content-section,.roadmap{margin-top:60px}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:20px}
.section-heading h2{font-size:30px;margin-top:4px}.section-heading p{margin:0;color:var(--muted);font-size:13px;max-width:430px;text-align:right}
.flow{display:flex;flex-wrap:wrap;gap:10px;align-items:center;background:var(--navy-900);color:#fff;border-radius:16px;padding:22px 24px}
.flow span{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);padding:8px 13px;border-radius:10px;font-weight:600}.flow b{color:#8da6bf}
.controls{margin-top:38px;display:flex;gap:16px;align-items:end;justify-content:space-between;flex-wrap:wrap}
.search-box{display:grid;gap:6px;min-width:min(520px,100%);font-size:12px;color:var(--muted)}
.search-box input{width:100%;border:1px solid var(--line);background:#fff;border-radius:12px;padding:13px 15px;font:inherit;font-size:15px;outline:none}
.search-box input:focus{border-color:#7d98b5;box-shadow:0 0 0 3px rgba(36,72,109,.09)}
.filters{display:flex;gap:7px;flex-wrap:wrap}
.filter-btn{border:1px solid var(--line);background:#fff;color:#526174;border-radius:999px;padding:9px 13px;cursor:pointer;font:inherit;font-size:12px}
.filter-btn.active{background:var(--navy-900);color:#fff;border-color:var(--navy-900)}
.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:18px}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 15px}.stat strong{display:block;font-size:21px;color:var(--navy-800)}.stat span{font-size:12px;color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{display:flex;flex-direction:column;min-height:310px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 8px 24px rgba(8,25,48,.04);transition:.18s transform,.18s box-shadow,.18s border-color}
.card:hover{transform:translateY(-3px);border-color:#b7c5d4;box-shadow:var(--shadow)}
.card-top{display:flex;justify-content:space-between;gap:10px}.badge{font-size:11px;font-weight:700;color:var(--navy-700);background:#edf3f8;border-radius:999px;padding:5px 9px}.level{font-size:11px;color:#856622;background:var(--accent-soft);padding:5px 9px;border-radius:999px}
.card h3{font-size:21px;margin:20px 0 9px;line-height:1.4}.card .summary{color:#59687a;font-size:14px;margin:0}.card-keywords{display:flex;gap:6px;flex-wrap:wrap;margin-top:16px}.card-keywords span{font-size:11px;color:#66788a;border:1px solid #e2e8ef;border-radius:6px;padding:3px 6px}
.card-footer{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid #eef2f6}.reviewed{font-size:11px;color:#7c8794}.open-detail{border:0;background:none;color:var(--navy-700);font-weight:700;cursor:pointer;padding:4px 0}
.empty{background:#fff;border:1px dashed var(--line);border-radius:14px;padding:40px;text-align:center;color:var(--muted)}
.roadmap-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.roadmap-grid article{background:#fff;border-top:3px solid var(--navy-700);border-radius:12px;padding:18px 16px;box-shadow:0 6px 18px rgba(8,25,48,.04)}.roadmap-grid strong{display:block;margin-bottom:8px}.roadmap-grid span{font-size:12px;color:var(--muted)}
footer{background:var(--navy-950);color:#cbd6e2;text-align:center;padding:34px 20px;font-size:13px}.footer-note{font-size:11px;color:#7f94aa;margin-top:5px}
.detail-dialog{width:min(900px,calc(100% - 30px));max-height:90vh;border:0;border-radius:18px;padding:0;box-shadow:0 30px 80px rgba(0,0,0,.28)}.detail-dialog::backdrop{background:rgba(3,12,23,.68)}.dialog-shell{position:relative;padding:34px;background:#fff}.close{position:absolute;right:18px;top:13px;border:0;background:#eef2f6;width:34px;height:34px;border-radius:50%;font-size:24px;cursor:pointer}.detail-title{font-family:"Noto Serif KR",serif;font-size:32px;line-height:1.35;margin:8px 40px 6px 0}.detail-sub{color:var(--muted);margin-bottom:24px}.detail-section{border-top:1px solid var(--line);padding:18px 0}.detail-section h4{margin:0 0 8px;font-size:14px;color:var(--navy-700)}.detail-section p{margin:0;color:#334155}.detail-list{margin:0;padding-left:20px;color:#334155}.source-links{display:flex;gap:8px;flex-wrap:wrap}.source-links a{font-size:12px;text-decoration:none;color:var(--navy-700);border:1px solid var(--line);border-radius:8px;padding:7px 9px;background:#f8fafc}.source-links a:hover{background:#eef4f9}
@media (max-width:900px){.notice{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr)}.cards{grid-template-columns:repeat(2,1fr)}.roadmap-grid{grid-template-columns:repeat(2,1fr)}.section-heading{align-items:start;flex-direction:column}.section-heading p{text-align:left}}
@media (max-width:620px){.hero-inner{padding:42px 20px 40px}main{padding:24px 16px 56px}.cards{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr)}.roadmap-grid{grid-template-columns:1fr}.notice{padding:22px}.dialog-shell{padding:26px 20px}.detail-title{font-size:26px}.search-box{min-width:100%}}