:root{--bg:#f5f7fb;--card:#fff;--ink:#162033;--muted:#67728a;--line:#dfe4ee;--accent:#1d4ed8;--danger:#b91c1c}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--ink)}a{color:var(--accent);text-decoration:none}.container{width:min(1120px,92%);margin:auto}.narrow{width:min(900px,92%)}.site-header{background:#fff;border-bottom:1px solid var(--line);padding:18px 0}.brand{font-weight:800;color:var(--ink);font-size:1.1rem}.hero{padding:56px 0 30px}.hero h1{font-size:clamp(2rem,5vw,3.4rem);margin:0 0 12px}.hero p{color:var(--muted);font-size:1.1rem}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px;padding-bottom:50px}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;color:inherit;box-shadow:0 8px 30px rgba(22,32,51,.06)}.card img,.placeholder{width:100%;aspect-ratio:16/9;object-fit:cover;background:#101827;display:grid;place-items:center;color:#fff;font-size:3rem}.card-body{padding:18px}.card h2{margin:0 0 8px;font-size:1.2rem}.card p{color:var(--muted);min-height:42px}.card small,.published{color:var(--muted)}.video-page{padding:40px 0}.video-page h1{font-size:clamp(1.8rem,4vw,3rem)}.player-wrap{position:relative;background:#000;border-radius:16px;overflow:hidden;box-shadow:0 18px 60px rgba(0,0,0,.18)}video{display:block;width:100%;max-height:72vh;background:#000}.watermark{position:absolute;right:16px;top:16px;display:flex;gap:10px;align-items:center;background:rgba(0,0,0,.55);color:#fff;padding:9px 11px;border-radius:10px;font-size:12px;pointer-events:none;user-select:none;text-shadow:0 1px 2px #000}.watermark img{width:42px;height:42px;object-fit:contain}.published{margin-top:18px}.description,.notice{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;margin-top:20px;line-height:1.65}.notice{font-size:.92rem}.panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;margin:38px auto;box-shadow:0 10px 35px rgba(22,32,51,.06)}.auth{width:min(440px,92%);margin:8vh auto}.auth .panel{display:grid;gap:16px}label{display:grid;gap:7px;font-weight:650}input,textarea{width:100%;padding:12px;border:1px solid #cbd3df;border-radius:10px;font:inherit;background:#fff}button{border:0;border-radius:10px;background:var(--accent);color:#fff;padding:12px 18px;font-weight:750;cursor:pointer}.alert{background:#fee2e2;color:#991b1b;padding:12px;border-radius:10px}.adminbar{display:flex;justify-content:space-between;align-items:center;gap:20px}.adminbar nav{display:flex;gap:16px;flex-wrap:wrap}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%}th,td{text-align:left;padding:13px;border-bottom:1px solid var(--line);white-space:nowrap}.inline{display:inline}.link{background:none;color:var(--accent);padding:0}.danger{color:var(--danger)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.full{grid-column:1/-1}.check{display:flex;align-items:center;gap:10px}.check input{width:auto}.empty{background:#fff;padding:24px;border-radius:14px}footer{text-align:center;color:var(--muted);padding:28px}@media(max-width:700px){.form-grid{grid-template-columns:1fr}.full{grid-column:auto}.adminbar{align-items:flex-start;flex-direction:column}.watermark{right:8px;top:8px;font-size:10px}.watermark img{width:30px;height:30px}}