:root{--bg: #f2f3f5;--surface: #ffffff;--surface-2: #eff1f4;--border: #e4e7eb;--text: #17181c;--muted: #65676b;--primary: #6c5ce7;--primary-2: #6c5ce7;--danger: #e0245e;--ok: #00a866;--like: #f91880;--rt: #00a866}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}button{font:inherit;cursor:pointer;border:none;border-radius:999px;padding:9px 18px;background:var(--primary);color:#fff;font-weight:600}button.secondary{background:var(--surface-2);color:var(--text)}button:disabled{opacity:.45;cursor:not-allowed}input,textarea,select{font:inherit;width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--text);margin-bottom:12px}input:focus,textarea:focus,select:focus{outline:2px solid rgba(108,92,231,.35);border-color:var(--primary)}label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}.app{display:grid;grid-template-columns:250px minmax(0,660px) 1fr;max-width:1280px;margin:0 auto;min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;overflow-y:auto;background:#fff;border-right:1px solid var(--border);padding:14px 10px;display:flex;flex-direction:column;gap:2px}.sidebar h1{font-size:22px;margin:4px 6px 16px;color:var(--primary);font-weight:800;letter-spacing:-.5px}.nav-item{display:flex;align-items:center;gap:14px;padding:11px 14px;border-radius:999px;color:var(--text);font-weight:600;font-size:15px;white-space:nowrap}.nav-item:hover{background:var(--surface-2)}.nav-item.active{font-weight:800;color:var(--primary);background:#6c5ce714}.nav-item svg{width:22px;height:22px;flex:none}.sidebar .spacer{flex:1}.sidebar .me{font-size:13px;color:var(--muted);padding:8px 6px}.main-col{border-left:1px solid var(--border);border-right:1px solid var(--border);background:var(--bg);min-height:100vh}.main{padding:14px 16px 40px;max-width:100%}.top-bar{display:none;position:sticky;top:0;z-index:30;background:#ffffffeb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);padding:10px 14px;align-items:center;justify-content:space-between}.top-bar h1{font-size:19px;margin:0;color:var(--primary);font-weight:800}.top-bar .row{gap:8px}.right-rail{padding:14px 16px;display:flex;flex-direction:column;gap:14px}.rail-card{background:var(--surface-2);border-radius:16px;padding:14px 16px}.rail-card h3{margin:0 0 10px;font-size:16px;font-weight:800}.rail-item{display:flex;justify-content:space-between;padding:7px 0;font-size:14px}.rail-item b{color:var(--text)}.rail-item .muted{font-size:12px}.card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:14px 16px;margin-bottom:12px}.row{display:flex;gap:12px;align-items:center}.row.wrap{flex-wrap:wrap}.title{font-size:18px;font-weight:800;margin:0 0 8px}.muted{color:var(--muted);font-size:13px}.muted.divider{padding:8px 4px}.pill{display:inline-block;font-size:12px;padding:2px 9px;border-radius:999px;background:var(--surface-2);color:var(--muted)}.pill.ok{background:#00a8661f;color:var(--ok)}.pill.warn{background:#e0245e1f;color:var(--danger)}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}.avatar{width:44px;height:44px;border-radius:50%;background:var(--surface-2);object-fit:cover;flex:none}.center{max-width:400px;margin:7vh auto}.error{color:var(--danger);font-size:13px;margin-bottom:10px}.toast{position:fixed;bottom:76px;left:50%;transform:translate(-50%);background:#fff;padding:10px 18px;border-radius:12px;border:1px solid var(--border);box-shadow:0 6px 24px #00000014;z-index:60}.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;z-index:40;background:#fffffff5;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-top:1px solid var(--border);padding:6px 4px calc(6px + env(safe-area-inset-bottom))}.bottom-nav a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--muted);font-size:10.5px;padding:4px 0;border-radius:10px}.bottom-nav a.active{color:var(--primary)}.bottom-nav a svg{width:24px;height:24px}.video-feed{height:calc(100vh - 110px);overflow-y:auto;scroll-snap-type:y mandatory;border-radius:16px;background:#000}.video-feed::-webkit-scrollbar{width:0}.vf-slide{position:relative;height:100%;scroll-snap-align:start;scroll-snap-stop:always;display:flex;align-items:center;justify-content:center}.vf-slide video{width:100%;height:100%;object-fit:contain;background:#000}.vf-overlay{position:absolute;left:0;right:56px;bottom:0;padding:40px 16px 18px;color:#fff;background:linear-gradient(transparent,#0000008c);border-radius:0 0 16px 16px}.vf-overlay .vf-author{font-weight:700;font-size:15px}.vf-overlay .vf-text{font-size:14px;margin-top:4px;opacity:.95;white-space:pre-wrap}.vf-actions{position:absolute;right:8px;bottom:24px;display:flex;flex-direction:column;gap:16px;align-items:center}.vf-actions button{background:#ffffff24;color:#fff;padding:8px;border-radius:50%;width:44px;height:44px;display:flex;align-items:center;justify-content:center;font-size:18px}.vf-actions .n{font-size:11px;color:#fff;text-align:center;margin-top:2px}.vf-empty{color:#fff;padding:40px;text-align:center}.chat-layout{display:flex;gap:14px;height:calc(100vh - 120px)}.conv-list{width:270px;overflow-y:auto;background:#fff;border:1px solid var(--border);border-radius:16px;padding:8px}.conv-item{padding:11px 12px;border-radius:12px;cursor:pointer}.conv-item:hover,.conv-item.active{background:var(--surface-2)}.chat-window{flex:1;display:flex;flex-direction:column;background:#fff;border-radius:16px;border:1px solid var(--border)}.messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px}.bubble{max-width:70%;padding:10px 14px;border-radius:16px;line-height:1.5}.bubble.me{align-self:flex-end;background:var(--primary);color:#fff;border-bottom-right-radius:4px}.bubble.them{align-self:flex-start;background:var(--surface-2);border-bottom-left-radius:4px}.composer{display:flex;gap:8px;padding:12px;border-top:1px solid var(--border);align-items:center}.composer input{margin-bottom:0}.composer button{padding:9px 16px}.tasks-panel{border-top:1px solid var(--border);padding:12px;background:#fff;border-radius:0 0 16px 16px}.task-row{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 0;font-size:13px}.task-row .secondary{padding:6px 10px;margin:0}.task-form{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:8px}.task-form input,.task-form select{width:auto;margin-bottom:0;padding:8px 10px}@media (max-width: 768px){.app{display:block;max-width:100%}.sidebar,.right-rail{display:none}.main-col{border:none}.top-bar{display:flex}.main{padding:12px 12px calc(72px + env(safe-area-inset-bottom))}.bottom-nav{display:flex}.card{border-radius:14px;padding:12px 14px}.bubble{max-width:82%}.chat-layout{height:calc(100vh - 180px)}.conv-list{width:130px}.center{margin:4vh 16px}.video-feed{height:calc(100vh - 126px);border-radius:0}.toast{bottom:88px}}@media (min-width: 769px) and (max-width: 1099px){.app{grid-template-columns:72px minmax(0,640px) 1fr}.nav-item span{display:none}.nav-item{justify-content:center;padding:12px}.sidebar h1{text-align:center;font-size:20px}.right-rail{display:none}}