*{box-sizing:border-box}body{margin:0;background:#f4f6f9;color:#172033;font-family:Arial,'Noto Sans KR',sans-serif}header{height:68px;background:#fff;border-bottom:1px solid #e5e9f0;display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100% - 1240px)/2))}header b{font-size:25px}header small{display:block;color:#768096}button{border:0;border-radius:10px;padding:10px 15px;cursor:pointer}main{max-width:1240px;margin:auto;padding:26px 20px}.hero{background:linear-gradient(135deg,#172554,#2563eb);color:white;border-radius:22px;padding:30px}.hero h1{margin:0 0 8px}.search{display:flex;gap:8px;margin:20px 0}.search input{flex:1;padding:14px;border:0;border-radius:10px;font-size:16px}.search button{background:#fff}.search .clear{background:#172554;color:#fff;border:1px solid #ffffff55}.filter-title{font-size:12px;font-weight:bold;opacity:.8;margin-top:14px}.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.chip{background:#ffffff24;color:white;border:1px solid #ffffff50}.chip.active{background:white;color:#1d4ed8}.bar,.section-head{display:flex;justify-content:space-between;align-items:center;margin:25px 2px 14px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{background:white;border:1px solid #e5e9f0;border-top:5px solid #94a3b8;border-radius:16px;padding:19px;box-shadow:0 4px 15px #1720330a;display:flex;flex-direction:column;min-height:240px}.meta{font-size:12px;color:#64748b}.tag{font-size:12px;background:#f1f5f9;color:#475569;padding:5px 8px;border-radius:8px;align-self:flex-start}.card h3{line-height:1.45;margin:13px 0}.summary{color:#586174;font-size:14px;line-height:1.55;flex:1}.card a,.youtube-section a{text-decoration:none;color:#2563eb;font-weight:bold;margin-top:15px}.card.cat-economy{border-top-color:#16a34a}.tag.cat-economy{background:#dcfce7;color:#166534}.card.cat-stock{border-top-color:#dc2626}.tag.cat-stock{background:#fee2e2;color:#991b1b}.card.cat-ai{border-top-color:#7c3aed}.tag.cat-ai{background:#ede9fe;color:#5b21b6}.card.cat-it{border-top-color:#0284c7}.tag.cat-it{background:#e0f2fe;color:#075985}.card.cat-semi{border-top-color:#ea580c}.tag.cat-semi{background:#ffedd5;color:#9a3412}.card.cat-world{border-top-color:#0891b2}.tag.cat-world{background:#cffafe;color:#155e75}.card.cat-sports{border-top-color:#ca8a04}.tag.cat-sports{background:#fef9c3;color:#854d0e}.youtube-section{margin-top:34px;background:#fff;border:1px solid #e5e9f0;border-radius:20px;padding:22px}.section-head{margin:0 0 18px}.section-head h2{margin:0}.section-head p{margin:5px 0 0;color:#64748b;font-size:13px}.youtube-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.video-card{border:1px solid #e5e9f0;border-radius:14px;overflow:hidden;background:#fff}.video-card>a{display:block;position:relative;margin:0}.video-card img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}.play{position:absolute;left:12px;bottom:10px;background:#000c;color:#fff;border-radius:50%;width:36px;height:36px;display:grid;place-items:center}.video-body{padding:13px}.video-body h3{font-size:14px;line-height:1.45;margin:0 0 10px}.video-body a{display:inline-block;font-size:13px}.youtube-disabled{grid-column:1/-1;background:#f8fafc;border:1px dashed #cbd5e1;border-radius:14px;padding:24px;text-align:center}.youtube-disabled p{color:#64748b}dialog{border:0;border-radius:18px;width:min(520px,90%);padding:25px}dialog label{display:block;margin:15px 0}dialog input{display:block;width:100%;padding:12px;margin-top:6px}.hint{font-size:13px;color:#64748b}@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}.youtube-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.grid,.youtube-grid{grid-template-columns:1fr}.hero{padding:22px}header{padding:0 18px}.search{flex-wrap:wrap}.search input{flex-basis:100%}.section-head{align-items:flex-start;gap:12px;flex-direction:column}}