:root{--cc-blue:#1877f2;--cc-bg:#f0f2f5;--cc-text:#1c1e21;--cc-muted:#65676b;--cc-line:#e4e6eb;--cc-card:#fff;--cc-green:#42b72a}.cc-shell{background:var(--cc-bg);color:var(--cc-text);min-height:100vh;font:15px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.cc-shell *{box-sizing:border-box}.cc-top{height:64px;position:sticky;top:0;z-index:50;background:#fff;display:flex;align-items:center;padding:0 max(18px,calc((100vw - 1400px)/2));gap:28px;box-shadow:0 1px 6px #0002}.cc-brand{font-size:20px;font-weight:800;color:#183153;text-decoration:none;white-space:nowrap}.cc-brand span,.cc-mark{display:inline-grid;place-items:center;background:var(--cc-blue);color:#fff;border-radius:50%;width:40px;height:40px;margin-right:9px;font-size:25px}.cc-search{background:var(--cc-bg);border-radius:22px;padding:10px 16px;flex:1;max-width:420px;color:var(--cc-muted)}.cc-search input{border:0;outline:0;background:transparent;width:90%;font:inherit}.cc-top nav{display:flex;gap:8px;align-items:center;margin-left:auto}.cc-top nav button,.cc-top nav a,.cc-left button{border:0;background:transparent;padding:11px 12px;color:var(--cc-muted);font-weight:650;text-decoration:none;cursor:pointer;border-radius:8px}.cc-top nav button:hover,.cc-left button:hover{background:var(--cc-bg);color:var(--cc-blue)}.cc-layout{display:grid;grid-template-columns:260px minmax(420px,680px) 280px;gap:24px;max-width:1280px;margin:24px auto;padding:0 20px}.cc-left,.cc-right{position:sticky;top:88px;align-self:start}.cc-left{display:flex;flex-direction:column;gap:5px}.cc-left button{text-align:left;font-size:15px}.cc-me{display:flex;gap:12px;align-items:center;padding:12px}.cc-me img,.cc-avatar{border-radius:50%;object-fit:cover}.cc-me small{display:block;color:var(--cc-muted)}.cc-privacy{font-size:12px;color:var(--cc-muted);padding:16px;background:#e7f3ff;border-radius:10px;margin-top:15px}.cc-card{background:var(--cc-card);border-radius:12px;box-shadow:0 1px 3px #0002;margin-bottom:18px;padding:16px}.cc-compose textarea,.cc-comment-form input,.cc-field{width:100%;border:1px solid var(--cc-line);background:var(--cc-bg);border-radius:18px;padding:12px 15px;font:inherit;outline:none}.cc-compose textarea{min-height:84px;resize:vertical}.cc-row{display:flex;gap:10px;align-items:center}.cc-between{justify-content:space-between}.cc-btn{border:0;border-radius:8px;background:var(--cc-blue);color:#fff;padding:11px 18px;font-weight:700;cursor:pointer;text-decoration:none;display:inline-block}.cc-btn-green{background:var(--cc-green)}.cc-btn-soft{background:#e7f3ff;color:var(--cc-blue)}.cc-post-head{display:flex;gap:10px;align-items:center}.cc-post-head strong,.cc-post-head small{display:block}.cc-post-head small,.cc-meta{color:var(--cc-muted)}.cc-post-text{margin:14px 0}.cc-media{width:calc(100% + 32px);max-height:600px;object-fit:contain;background:#111;margin:4px -16px 0;display:block}.cc-stats{padding:11px 0;color:var(--cc-muted);border-bottom:1px solid var(--cc-line)}.cc-actions{display:flex;border-bottom:1px solid var(--cc-line)}.cc-actions button{flex:1;border:0;background:#fff;padding:10px;cursor:pointer;font-weight:650;color:var(--cc-muted)}.cc-actions button.active{color:var(--cc-blue)}.cc-comment{display:flex;gap:8px;margin:12px 0}.cc-bubble{background:var(--cc-bg);border-radius:16px;padding:8px 12px}.cc-bubble strong{display:block;font-size:13px}.cc-comment-form{display:flex;gap:8px}.cc-section-title{margin:0 0 16px}.cc-members{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.cc-member{display:flex;align-items:center;gap:12px}.cc-member .cc-btn{margin-left:auto}.cc-right{background:#fff;padding:18px;border-radius:12px}.cc-mini{display:flex;align-items:center;gap:9px;padding:8px 0}.cc-event{border-left:4px solid var(--cc-blue);padding-left:14px;margin:14px 0}.cc-event time{font-weight:700;color:var(--cc-blue)}.cc-calendar{display:grid;grid-template-columns:repeat(7,1fr);border:1px solid var(--cc-line);border-radius:10px;overflow:hidden}.cc-day{min-height:82px;border:1px solid var(--cc-line);padding:7px;background:#fff}.cc-day.muted{background:#f7f8fa;color:#aaa}.cc-event-dot{font-size:11px;background:#e7f3ff;color:#145dbf;padding:3px;border-radius:4px;margin-top:4px}.cc-chat{display:grid;grid-template-columns:210px 1fr;min-height:560px;padding:0;overflow:hidden}.cc-chat-list{border-right:1px solid var(--cc-line);padding:12px}.cc-chat-list button{width:100%;border:0;background:transparent;padding:10px;text-align:left;border-radius:8px;cursor:pointer}.cc-chat-list button:hover{background:var(--cc-bg)}.cc-chat-room{display:flex;flex-direction:column}.cc-chat-head{padding:14px;border-bottom:1px solid var(--cc-line);font-weight:700}.cc-messages{padding:16px;flex:1;max-height:450px;overflow:auto}.cc-msg{max-width:72%;padding:9px 12px;border-radius:16px;background:var(--cc-bg);margin:6px 0}.cc-msg.mine{background:var(--cc-blue);color:#fff;margin-left:auto}.cc-chat-form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--cc-line)}#cc-toast{position:fixed;right:20px;bottom:20px;background:#172b4d;color:#fff;border-radius:9px;padding:12px 18px;opacity:0;transform:translateY(20px);transition:.2s;pointer-events:none}#cc-toast.show{opacity:1;transform:none}.cc-loading{text-align:center;padding:80px;color:var(--cc-muted)}.cc-auth{min-height:100vh;background:var(--cc-bg);display:flex;align-items:center;justify-content:center;gap:80px;padding:30px;font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.cc-auth-copy{max-width:520px}.cc-auth-copy h1{color:var(--cc-blue);font-size:52px;margin:10px 0}.cc-auth-copy p{font-size:25px}.cc-auth-card{width:min(420px,100%);background:#fff;padding:24px;border-radius:12px;box-shadow:0 8px 28px #0002}.cc-auth-card label{display:block;margin-bottom:12px;font-weight:650}.cc-auth-card input{width:100%;padding:13px;border:1px solid #ccd0d5;border-radius:7px;margin-top:5px;font:inherit}.cc-auth-card .cc-btn{width:100%;font-size:17px}.cc-auth-card details{border-top:1px solid #ddd;margin-top:18px;padding-top:16px}.cc-auth-card summary{text-align:center;color:var(--cc-blue);cursor:pointer;margin-bottom:15px}.cc-error{background:#fff0f0;color:#a52222;padding:10px;border-radius:7px}@media(max-width:1050px){.cc-layout{grid-template-columns:220px 1fr}.cc-right{display:none}.cc-top nav button{display:none}}@media(max-width:740px){.cc-top{padding:0 10px}.cc-brand{font-size:0}.cc-brand span{font-size:25px}.cc-search{max-width:none}.cc-top nav a{font-size:12px}.cc-layout{display:block;padding:0 10px;margin-top:12px}.cc-left{display:none}.cc-members{grid-template-columns:1fr}.cc-chat{grid-template-columns:110px 1fr}.cc-chat-list{padding:5px}.cc-auth{display:block}.cc-auth-copy{text-align:center}.cc-auth-copy h1{font-size:36px}.cc-auth-copy p{font-size:18px}}