:root{--bg: #0f172a;--panel: #1e293b;--panel2: #273449;--text: #e2e8f0;--muted: #94a3b8;--accent: #38bdf8;--danger: #f87171;--rec: #ef4444}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;-webkit-font-smoothing:antialiased}#root{min-height:100vh}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px;background:radial-gradient(1200px 600px at 50% -10%,#1e293b,#0f172a)}.login-card{width:100%;max-width:380px;background:var(--panel);border:1px solid #334155;border-radius:16px;padding:28px 24px;display:flex;flex-direction:column;gap:14px;box-shadow:0 20px 50px #00000080}.login-card h1{margin:0 0 4px;font-size:22px;text-align:center}.login-card input{padding:14px 16px;border-radius:10px;border:1px solid #334155;background:var(--panel2);color:var(--text);font-size:16px;outline:none}.login-card input:focus{border-color:var(--accent)}.btn-primary{padding:14px;border:none;border-radius:10px;background:var(--accent);color:#0f172a;font-size:16px;font-weight:700;cursor:pointer}.btn-primary:active{transform:scale(.98)}.link{color:var(--accent);text-decoration:none;text-align:center;font-size:14px}.link:hover{text-decoration:underline}.err{color:var(--danger);font-size:14px;text-align:center}.err2{color:var(--danger);font-size:14px}.pad{padding:16px}.spacer{flex:1}.layout{min-height:100vh;display:flex;flex-direction:column}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:10px;padding:12px 16px;background:#0f172aeb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid #1e293b}.brand{font-weight:700;font-size:16px}.user{color:var(--muted);font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.btn-ghost{padding:8px 12px;border:1px solid #334155;background:transparent;color:var(--text);border-radius:8px;cursor:pointer;font-size:13px;white-space:nowrap}.btn-ghost:active{background:#334155}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}.tile{background:var(--panel);border:1px solid #334155;border-radius:14px;overflow:hidden;cursor:pointer;transition:transform .08s ease;display:flex;flex-direction:column}.tile:active{transform:scale(.98)}.tile-preview{position:relative;aspect-ratio:16 / 9;background:#000}.thumb{width:100%;height:100%;object-fit:cover;display:block}.ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:22px}.rec{position:absolute;top:8px;left:8px;background:var(--rec);color:#fff;font-size:11px;font-weight:700;padding:3px 8px;border-radius:6px}.tile-name{padding:12px 14px 2px;font-weight:600;font-size:15px}.tile-sub{padding:0 14px 14px;color:var(--muted);font-size:12px}.pages{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:24px;color:var(--muted);font-size:14px}.btn-page{padding:10px 16px;border:1px solid #334155;background:var(--panel);color:var(--text);border-radius:8px;cursor:pointer;font-size:16px}.btn-page:disabled{opacity:.4;cursor:default}.modal-player{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background:#000000e6;display:flex;flex-direction:column;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}.player-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 16px;background:var(--panel);border-bottom:1px solid #334155}.player-title{display:flex;flex-direction:column;min-width:0}.player-title b{font-size:15px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.player-title .muted{font-size:12px;color:var(--muted)}.player-actions{display:flex;gap:8px;flex-shrink:0}.ptz{display:grid;grid-template-columns:repeat(3,64px);gap:10px;justify-content:center;padding:14px 16px;background:var(--panel);border-bottom:1px solid #334155}.ptz-btn{height:56px;font-size:24px;border:1px solid #334155;background:var(--panel2);color:var(--text);border-radius:12px;cursor:pointer;-webkit-tap-highlight-color:transparent}.ptz-btn:active{background:var(--accent);color:#0f172a}.ptz-home{grid-column:1}.video-box{flex:1;display:flex;align-items:center;justify-content:center;background:#000;min-height:0}.video{width:100%;height:100%;max-height:100%;background:#000}.timeline-block{background:var(--panel);border-top:1px solid #334155;padding:14px 16px}.tl-labels{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);margin-bottom:8px}.tl-labels .link{font-size:12px}.timeline{position:relative;height:46px;background:var(--panel2);border-radius:8px;cursor:pointer;overflow:hidden}.evt{position:absolute;top:0;bottom:0;background:var(--accent);opacity:.55;border-radius:2px}@media (max-width: 640px){.grid{grid-template-columns:repeat(2,1fr);gap:10px;padding:10px}.pad{padding:10px}.tile-name{padding:10px 10px 2px;font-size:13px}.tile-sub{padding:0 10px 10px;font-size:11px}.topbar{padding:10px 12px}.brand{font-size:14px}.user{display:none}.ptz{grid-template-columns:repeat(3,1fr);max-width:260px;margin:0 auto;padding:12px}.ptz-btn{height:52px;font-size:22px}.player-head,.timeline-block{padding:10px 12px}}@media (max-width: 380px){.grid{grid-template-columns:1fr}}