html,body{touch-action:manipulation;-webkit-tap-highlight-color:transparent;height:100dvh;margin:0;padding:0;overflow:hidden}#app,.app-root{width:100%;height:100dvh}:root{--font-family:"Segoe UI", "Microsoft YaHei", sans-serif}.light-theme{--bg-primary:#f5f5f5;--bg-secondary:#fff;--bg-tertiary:#e8e8e8;--bg-hover:#ececec;--bg-active:#d6eaf8;--bg-bubble-mine:#95ec69;--bg-bubble-other:#fff;--bg-bubble-system:transparent;--bg-input:#fff;--bg-modal:#fff;--bg-overlay:#0006;--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 #0000001a;--shadow-lg:0 4px 16px #00000026;--accent:#1890ff;--accent-hover:#40a9ff;--danger:#ff4d4f;--danger-hover:#ff7875;--success:#52c41a;--warning:#faad14;--scrollbar-thumb:silver;--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:#0009;--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 #0000004d;--shadow-lg:0 4px 16px #0006;--accent:#1890ff;--accent-hover:#40a9ff;--danger:#ff4d4f;--danger-hover:#ff7875;--success:#52c41a;--warning:#faad14;--scrollbar-thumb:#444;--scrollbar-track:transparent;--unread-bg:#ff4d4f}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);color:var(--text-primary);background:var(--bg-primary);font-size:14px;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{cursor:pointer;font-size:14px;font-family:var(--font-family);border:none;border-radius:6px;justify-content:center;align-items:center;padding:6px 16px;transition:all .2s;display:inline-flex}.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{color:var(--text-secondary);background:0 0;padding:4px 8px}.btn-text:hover{color:var(--text-primary);background:var(--bg-hover)}.btn-icon{cursor:pointer;color:var(--text-secondary);background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;padding:4px;font-size:18px;display:inline-flex}.btn-icon:hover{background:var(--bg-hover);color:var(--text-primary)}.btn:disabled{opacity:.5;cursor:not-allowed}.input{border:1px solid var(--border-color);background:var(--bg-input);width:100%;color:var(--text-primary);font-size:14px;font-family:var(--font-family);border-radius:6px;outline:none;padding:8px 12px;transition:border-color .2s}.input:focus{border-color:var(--accent)}.input-group{margin-bottom:16px}.input-group label{color:var(--text-secondary);margin-bottom:4px;font-size:13px;display:block}.modal-overlay{background:var(--bg-overlay);z-index:1000;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--bg-modal);box-shadow:var(--shadow-lg);border-radius:12px;min-width:360px;max-width:500px;max-height:80vh;padding:24px;overflow-y:auto}.modal-title{color:var(--text-primary);margin-bottom:16px;font-size:18px;font-weight:600}.modal-actions{justify-content:flex-end;gap:8px;margin-top:20px;display:flex}.avatar{object-fit:cover;background:var(--bg-tertiary);border-radius:6px;flex-shrink:0;width:40px;height:40px}.avatar-sm{border-radius:4px;width:32px;height:32px}.avatar-lg{border-radius:8px;width:64px;height:64px}.avatar-xl{border-radius:10px;width:96px;height:96px}.avatar-placeholder{color:var(--text-inverse);justify-content:center;align-items:center;font-size:18px;font-weight:700;display:flex}.badge{background:var(--unread-bg);color:#fff;border-radius:9px;justify-content:center;align-items:center;min-width:18px;height:18px;padding:0 5px;font-size:11px;font-weight:600;display:inline-flex}.tooltip{position:relative}.tooltip:after{content:attr(data-tip);background:var(--bg-tooltip);color:#fff;white-space:nowrap;opacity:0;pointer-events:none;border-radius:4px;padding:4px 8px;font-size:12px;transition:opacity .2s;position:absolute;bottom:100%;left:50%;transform:translate(-50%)}.tooltip:hover:after{opacity:1}.progress-bar{background:var(--bg-tertiary);border-radius:2px;height:4px;overflow:hidden}.progress-bar .progress-fill{background:var(--accent);border-radius:2px;height:100%;transition:width .3s}.context-menu{background:var(--bg-secondary);border:1px solid var(--border-color);box-shadow:var(--shadow-lg);z-index:2000;border-radius:8px;min-width:120px;padding:4px 0;position:fixed}.context-menu-item{cursor:pointer;color:var(--text-primary);padding:8px 16px;font-size:13px;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:.2s fadeIn}.slide-up-enter-active{animation:.3s slideUp}.text-ellipsis{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.flex-center{justify-content:center;align-items:center;display:flex}.flex-between{justify-content:space-between;align-items:center;display:flex}.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 (width<=1024px){.btn{min-height:36px;padding:8px 16px}.btn-icon{min-width:36px;min-height:36px;font-size:18px}}@media (width<=768px){.btn{min-height:40px;padding:10px 16px;font-size:15px}.btn-icon{min-width:40px;min-height:40px;font-size:20px}.input{min-height:40px;padding:10px 12px;font-size:16px}.input-group label{margin-bottom:6px;font-size:14px}.modal-overlay{align-items:flex-end}.modal{width:100%;max-height:90vh;padding:20px 16px;padding-bottom:max(20px, env(safe-area-inset-bottom));border-radius:16px 16px 0 0;animation:.3s slideUp;min-width:unset!important;max-width:100%!important}.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 (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 (width<=768px){body{padding-bottom:env(safe-area-inset-bottom)}}}