html,body{margin:0;padding:0;height:100%;height:100dvh;overflow:hidden;touch-action:manipulation;-webkit-tap-highlight-color:transparent}#app,.app-root{height:100%;height:100dvh;width:100%}:root{--font-family: "Segoe UI", "Microsoft YaHei", sans-serif}.light-theme{--bg-primary: #f5f5f5;--bg-secondary: #ffffff;--bg-tertiary: #e8e8e8;--bg-hover: #ececec;--bg-active: #d6eaf8;--bg-bubble-mine: #95ec69;--bg-bubble-other: #ffffff;--bg-bubble-system: transparent;--bg-input: #ffffff;--bg-modal: #ffffff;--bg-overlay: rgba(0,0,0,.4);--bg-tooltip: #333;--text-primary: #1a1a1a;--text-secondary: #666;--text-tertiary: #999;--text-inverse: #fff;--text-link: #1890ff;--text-system: #999;--border-color: #e0e0e0;--border-light: #f0f0f0;--shadow: 0 2px 8px rgba(0,0,0,.1);--shadow-lg: 0 4px 16px rgba(0,0,0,.15);--accent: #1890ff;--accent-hover: #40a9ff;--danger: #ff4d4f;--danger-hover: #ff7875;--success: #52c41a;--warning: #faad14;--scrollbar-thumb: #c0c0c0;--scrollbar-track: transparent;--unread-bg: #ff4d4f}.dark-theme{--bg-primary: #1a1a2e;--bg-secondary: #16213e;--bg-tertiary: #0f3460;--bg-hover: #1f3a60;--bg-active: #1a4a7a;--bg-bubble-mine: #2a6a3a;--bg-bubble-other: #2d3250;--bg-bubble-system: transparent;--bg-input: #16213e;--bg-modal: #1a1a2e;--bg-overlay: rgba(0,0,0,.6);--bg-tooltip: #444;--text-primary: #e0e0e0;--text-secondary: #aaa;--text-tertiary: #777;--text-inverse: #fff;--text-link: #40a9ff;--text-system: #777;--border-color: #2a2a4a;--border-light: #222;--shadow: 0 2px 8px rgba(0,0,0,.3);--shadow-lg: 0 4px 16px rgba(0,0,0,.4);--accent: #1890ff;--accent-hover: #40a9ff;--danger: #ff4d4f;--danger-hover: #ff7875;--success: #52c41a;--warning: #faad14;--scrollbar-thumb: #444;--scrollbar-track: transparent;--unread-bg: #ff4d4f}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);font-size:14px;color:var(--text-primary);background:var(--bg-primary);line-height:1.5}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--scrollbar-track)}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:3px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:6px 16px;border:none;border-radius:6px;font-size:14px;cursor:pointer;transition:all .2s;font-family:var(--font-family)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-hover)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--bg-hover)}.btn-text{background:transparent;color:var(--text-secondary);padding:4px 8px}.btn-text:hover{color:var(--text-primary);background:var(--bg-hover)}.btn-icon{background:transparent;border:none;padding:4px;cursor:pointer;color:var(--text-secondary);border-radius:4px;display:inline-flex;align-items:center;justify-content:center;font-size:18px}.btn-icon:hover{background:var(--bg-hover);color:var(--text-primary)}.btn:disabled{opacity:.5;cursor:not-allowed}.input{width:100%;padding:8px 12px;border:1px solid var(--border-color);border-radius:6px;background:var(--bg-input);color:var(--text-primary);font-size:14px;font-family:var(--font-family);outline:none;transition:border-color .2s}.input:focus{border-color:var(--accent)}.input-group{margin-bottom:16px}.input-group label{display:block;margin-bottom:4px;color:var(--text-secondary);font-size:13px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--bg-overlay);display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--bg-modal);border-radius:12px;box-shadow:var(--shadow-lg);padding:24px;min-width:360px;max-width:500px;max-height:80vh;overflow-y:auto}.modal-title{font-size:18px;font-weight:600;margin-bottom:16px;color:var(--text-primary)}.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:20px}.avatar{width:40px;height:40px;border-radius:6px;object-fit:cover;background:var(--bg-tertiary);flex-shrink:0}.avatar-sm{width:32px;height:32px;border-radius:4px}.avatar-lg{width:64px;height:64px;border-radius:8px}.avatar-xl{width:96px;height:96px;border-radius:10px}.avatar-placeholder{display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--text-inverse);font-weight:700}.badge{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;border-radius:9px;background:var(--unread-bg);color:#fff;font-size:11px;padding:0 5px;font-weight:600}.tooltip{position:relative}.tooltip:after{content:attr(data-tip);position:absolute;bottom:100%;left:50%;transform:translate(-50%);background:var(--bg-tooltip);color:#fff;padding:4px 8px;border-radius:4px;font-size:12px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .2s}.tooltip:hover:after{opacity:1}.progress-bar{height:4px;background:var(--bg-tertiary);border-radius:2px;overflow:hidden}.progress-bar .progress-fill{height:100%;background:var(--accent);border-radius:2px;transition:width .3s}.context-menu{position:fixed;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:8px;box-shadow:var(--shadow-lg);z-index:2000;min-width:120px;padding:4px 0}.context-menu-item{padding:8px 16px;cursor:pointer;font-size:13px;color:var(--text-primary);transition:background .15s}.context-menu-item:hover{background:var(--bg-hover)}.context-menu-item.danger{color:var(--danger)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-enter-active{animation:fadeIn .2s}.slide-up-enter-active{animation:slideUp .3s}.text-ellipsis{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.flex-center{display:flex;align-items:center;justify-content:center}.flex-between{display:flex;align-items:center;justify-content:space-between}.gap-8{gap:8px}.gap-12{gap:12px}.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}@media (max-width: 1024px){.btn{padding:8px 16px;min-height:36px}.btn-icon{min-width:36px;min-height:36px;font-size:18px}}@media (max-width: 768px){.btn{padding:10px 16px;min-height:40px;font-size:15px}.btn-icon{min-width:40px;min-height:40px;font-size:20px}.input{padding:10px 12px;font-size:16px;min-height:40px}.input-group label{font-size:14px;margin-bottom:6px}.modal-overlay{align-items:flex-end}.modal{min-width:unset!important;max-width:100%!important;width:100%;max-height:90vh;border-radius:16px 16px 0 0;padding:20px 16px;padding-bottom:max(20px,env(safe-area-inset-bottom));animation:slideUp .3s}.modal-title{font-size:17px}.modal-actions{flex-direction:column-reverse;gap:8px}.modal-actions .btn{width:100%}.avatar{width:36px;height:36px}.avatar-sm{width:32px;height:32px}.context-menu{min-width:150px}.context-menu-item{padding:12px 16px;font-size:15px}::-webkit-scrollbar{width:0;height:0}}@media (max-width: 480px){.modal{max-height:95vh;padding:16px 12px;padding-bottom:max(16px,env(safe-area-inset-bottom))}}@supports (padding: env(safe-area-inset-bottom)){@media (max-width: 768px){body{padding-bottom:env(safe-area-inset-bottom)}}}