:root{--bg-primary:#f5f7fa;--bg-secondary:#fff;--bg-tertiary:#e8ecf1;--text-primary:#1a1a2e;--text-secondary:#65778b;--text-muted:#9ba8b7;--border-color:#e1e5ea;--accent:#e74c5e;--accent-light:#ffe0e4;--accent-hover:#d43a4c;--shadow-sm:0 1px 3px #0000000f;--shadow-md:0 4px 16px #00000014;--shadow-lg:0 8px 32px #0000001f;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--max-width:680px;--transition:.25s ease;--msg-other:#f0f2f5;--msg-self:#e74c5e;--msg-self-text:#fff;--tag-bg:#edeaff;--tag-text:#5b5bd6;--skeleton:#e4e8ed;--overlay:#0006}[data-theme=dark]{--bg-primary:#0d1117;--bg-secondary:#161b22;--bg-tertiary:#21262d;--text-primary:#e6edf3;--text-secondary:#8b949e;--text-muted:#6e7681;--border-color:#30363d;--accent:#f85149;--accent-light:#3d1a1c;--accent-hover:#ff6b63;--shadow-sm:0 1px 3px #0000004d;--shadow-md:0 4px 16px #0006;--shadow-lg:0 8px 32px 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var(--bg-primary);background:#22c55e;border-radius:50%;width:10px;height:10px;position:absolute;bottom:1px;right:1px}.conv-info{flex:1;min-width:0}.conv-top{justify-content:space-between;align-items:center;display:flex}.conv-name{font-size:15px;font-weight:600}.conv-time{color:var(--text-muted);flex-shrink:0;font-size:11px}.conv-bottom{justify-content:space-between;align-items:center;margin-top:2px;display:flex}.conv-last{color:var(--text-secondary);text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:13px;overflow:hidden}.conv-badge{background:var(--accent);color:#fff;border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;min-width:18px;height:18px;margin-left:8px;padding:0 5px;font-size:10px;font-weight:700;display:flex}.chat-room{z-index:150;background:var(--bg-primary);flex-direction:column;width:100%;max-width:480px;margin:0 auto;animation:.3s slideUp;display:flex;position:fixed;inset:0}.chat-header{background:var(--bg-secondary);border-bottom:1px solid var(--border-color);transition:background var(--transition);align-items:center;gap:10px;padding:12px 16px;display:flex}.chat-back{width:32px;height:32px;color:var(--text-secondary);justify-content:center;align-items:center;display:flex}.chat-header-info{flex-direction:column;display:flex}.chat-name{font-size:15px;font-weight:600}.chat-status{color:var(--text-muted);font-size:11px}.chat-status.online{color:#22c55e}.chat-messages{flex-direction:column;flex:1;gap:12px;padding:16px;display:flex;overflow-y:auto}.chat-msg{flex-direction:column;animation:.3s both fadeInUp;display:flex}.chat-msg.other{align-items:flex-start}.chat-msg.self{align-items:flex-end}.msg-bubble{word-break:break-word;border-radius:18px;max-width:75%;padding:10px 14px;font-size:14px;line-height:1.5}.chat-msg.other .msg-bubble{background:var(--msg-other);color:var(--text-primary);border-bottom-left-radius:4px}.chat-msg.self .msg-bubble{background:var(--msg-self);color:var(--msg-self-text);border-bottom-right-radius:4px}.msg-meta{justify-content:flex-end;align-items:center;gap:6px;margin-top:4px;display:flex}.msg-time,.msg-status{opacity:.7;font-size:10px}.msg-status.read:after{content:"✓✓"}.msg-status.sent:after{content:"✓"}.msg-recall{color:var(--text-muted);opacity:0;transition:opacity var(--transition);margin-top:4px;padding:2px 8px;font-size:11px}.chat-msg.self:hover .msg-recall{opacity:1}.msg-recalled{color:var(--text-muted);padding:6px 12px;font-size:12px;font-style:italic}.chat-input-bar{background:var(--bg-secondary);border-top:1px solid var(--border-color);transition:background var(--transition);align-items:center;gap:8px;padding:12px 16px;display:flex}.chat-input{border:1px solid var(--border-color);background:var(--bg-tertiary);color:var(--text-primary);transition:border-color var(--transition);border-radius:22px;outline:none;flex:1;padding:10px 16px;font-size:14px}.chat-input:focus{border-color:var(--accent)}.chat-send-btn{background:var(--accent);color:#fff;width:40px;height:40px;transition:opacity var(--transition);border-radius:50%;justify-content:center;align-items:center;display:flex}.chat-send-btn:disabled{opacity:.4}.search-bar{background:var(--bg-secondary);border-radius:var(--radius-md);transition:background var(--transition);color:var(--text-muted);align-items:center;gap:10px;margin-bottom:16px;padding:10px 16px;display:flex}.search-input{color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;font-size:14px}.search-input::placeholder{color:var(--text-muted)}.search-clear{width:20px;height:20px;color:var(--text-muted);justify-content:center;align-items:center;font-size:16px;display:flex}.circle-grid{flex-direction:column;gap:12px;padding-bottom:16px;display:flex}.circle-card{background:var(--bg-secondary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:background var(--transition), box-shadow var(--transition);animation:.4s both fadeInUp;overflow:hidden}.circle-card:hover{box-shadow:var(--shadow-md)}.circle-cover{height:140px;position:relative;overflow:hidden}.circle-cover img{object-fit:cover;width:100%;height:100%}.circle-members{color:#fff;background:#00000080;border-radius:12px;align-items:center;gap:4px;padding:4px 8px;font-size:11px;display:flex;position:absolute;bottom:8px;right:8px}.circle-info{padding:12px 14px}.circle-info h3{margin-bottom:8px;font-size:16px;font-weight:700}.circle-actions{justify-content:space-between;align-items:center;display:flex}.circle-join{background:var(--accent);color:#fff;transition:all var(--transition);border-radius:16px;padding:6px 16px;font-size:12px;font-weight:600}.circle-join.joined{background:var(--bg-tertiary);color:var(--text-secondary)}.circle-join:active{transform:scale(.95)}.profile-card{background:var(--bg-secondary);border-radius:var(--radius-lg);text-align:center;box-shadow:var(--shadow-sm);transition:background var(--transition);padding:24px 16px}.profile-avatar-section{cursor:pointer;flex-direction:column;align-items:center;gap:8px;margin-bottom:16px;display:flex}.profile-avatar-wrap{position:relative}.avatar-edit-badge{background:var(--accent);color:#fff;border:2px solid var(--bg-secondary);border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;display:flex;position:absolute;bottom:2px;right:2px}.avatar-edit-hint{color:var(--text-muted);font-size:12px}.profile-info{flex-direction:column;align-items:center;gap:8px;display:flex}.profile-name{font-size:20px;font-weight:700}.profile-bio{color:var(--text-secondary);font-size:14px}.profile-edit-form{text-align:left;flex-direction:column;gap:12px;display:flex}.form-field{flex-direction:column;gap:4px;display:flex}.form-field label{color:var(--text-secondary);font-size:13px;font-weight:600}.form-field input,.form-field textarea{border-radius:var(--radius-sm);border:1px solid var(--border-color);background:var(--bg-tertiary);color:var(--text-primary);resize:vertical;transition:border-color var(--transition);outline:none;padding:10px 12px;font-size:14px}.form-field input:focus,.form-field textarea:focus{border-color:var(--accent)}.form-actions{justify-content:flex-end;gap:8px;margin-top:4px;display:flex}.profile-interests{text-align:left;margin-top:20px}.profile-interests h4{margin-bottom:10px;font-size:14px;font-weight:600}.profile-tags{flex-wrap:wrap;gap:8px;display:flex}.profile-stats{background:var(--bg-secondary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:background var(--transition);margin-top:12px;display:flex}.stat-item{flex-direction:column;flex:1;align-items:center;padding:16px 0;display:flex}.stat-item:not(:last-child){border-right:1px solid var(--border-color)}.stat-value{color:var(--accent);font-size:20px;font-weight:700}.stat-label{color:var(--text-muted);margin-top:2px;font-size:11px}.crop-modal{z-index:200;background:var(--bg-primary);flex-direction:column;display:flex;position:fixed;inset:0}.crop-header{justify-content:space-between;align-items:center;padding:12px 16px;font-size:15px;font-weight:600;display:flex}.crop-area{cursor:grab;touch-action:none;background:#000;flex:1;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.crop-area:active{cursor:grabbing}.crop-img{object-fit:contain;-webkit-user-select:none;user-select:none;-webkit-user-drag:none;max-width:100%;max-height:100%}.crop-overlay{border:2px solid #fff;position:absolute;box-shadow:0 0 0 9999px #00000080}.crop-grid{grid-template-rows:1fr 1fr 1fr;grid-template-columns:1fr 1fr 1fr;display:grid;position:absolute;inset:0}.crop-grid div:first-child,.crop-grid div:nth-child(3),.crop-grid div:nth-child(7),.crop-grid div:nth-child(9){border:1px solid #ffffff4d}