:root{--brand: #2f6fed;--brand-dark: #2558c9;--brand-light: #eaf1ff;--bg: #f2f4f7;--panel: #ffffff;--panel-2: #fafbfc;--text: #1a1d21;--text-2: #5c6570;--text-3: #8b95a1;--border: #e4e8ee;--border-2: #eef1f5;--green: #00a870;--red: #d54941;--orange: #ed7b2f;--radius: 10px;--shadow: 0 2px 12px rgba(16, 24, 40, .06);--shadow-lg: 0 8px 32px rgba(16, 24, 40, .12);--safe-b: env(safe-area-inset-bottom, 0px);--safe-t: env(safe-area-inset-top, 0px)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#app{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;-webkit-font-smoothing:antialiased;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;overscroll-behavior:none}button{font-family:inherit;cursor:pointer}input,textarea,select{font-family:inherit;font-size:14px}input:focus,textarea:focus{outline:none}a{color:var(--brand);text-decoration:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 16px;border-radius:8px;border:1px solid var(--border);background:#fff;color:var(--text);font-size:14px;font-weight:500;transition:all .15s;white-space:nowrap}.btn:hover{border-color:var(--brand);color:var(--brand)}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff}.btn-danger{color:var(--red);border-color:#f5cfcc}.btn-danger:hover{background:#fdf2f1;border-color:var(--red);color:var(--red)}.btn-sm{padding:5px 11px;font-size:13px;border-radius:6px}.btn-ghost{border-color:transparent;background:transparent}.btn-ghost:hover{background:var(--border-2);color:var(--text)}.input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text);transition:border-color .15s}.input:focus{border-color:var(--brand);box-shadow:0 0 0 3px #2f6fed1a}.input::placeholder{color:var(--text-3)}textarea.input{resize:none;line-height:1.6}.card{background:var(--panel);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow)}.avatar{display:inline-flex;align-items:center;justify-content:center;border-radius:50%;color:#fff;font-weight:600;flex-shrink:0;-webkit-user-select:none;user-select:none;overflow:hidden}.avatar img{width:100%;height:100%;object-fit:cover}.dot{width:8px;height:8px;border-radius:50%;background:var(--text-3);flex-shrink:0}.dot.online{background:var(--green);box-shadow:0 0 0 2px #00a8702e}.empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-3);gap:10px;font-size:13px;padding:24px;text-align:center}.empty svg{opacity:.35}.badge{min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:var(--red);color:#fff;font-size:11px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;line-height:1}.badge.muted{background:var(--text-3)}.scroll{overflow-y:auto;overscroll-behavior:contain}.scroll::-webkit-scrollbar{width:6px;height:6px}.scroll::-webkit-scrollbar-thumb{background:#d3d9e0;border-radius:3px}.scroll::-webkit-scrollbar-thumb:hover{background:#bcc4ce}.scroll::-webkit-scrollbar-track{background:transparent}.spin{width:16px;height:16px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}.spin.dark{border-color:#2f6fed33;border-top-color:var(--brand)}@keyframes spin{to{transform:rotate(360deg)}}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#10182873;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px;animation:fade .15s}.modal{background:#fff;border-radius:14px;box-shadow:var(--shadow-lg);width:100%;max-width:440px;max-height:85vh;display:flex;flex-direction:column;animation:pop .18s cubic-bezier(.2,.9,.3,1.2)}.modal-head{padding:18px 20px 12px;font-size:16px;font-weight:600;display:flex;align-items:center;justify-content:space-between}.modal-body{padding:0 20px 4px;overflow-y:auto;flex:1}.modal-foot{padding:14px 20px 18px;display:flex;gap:10px;justify-content:flex-end}@keyframes fade{0%{opacity:0}}@keyframes pop{0%{opacity:0;transform:scale(.94) translateY(8px)}}.toasts{position:fixed;top:16px;left:50%;transform:translate(-50%);z-index:3000;display:flex;flex-direction:column;gap:8px;pointer-events:none;max-width:min(92vw,420px)}.toast{padding:10px 16px;border-radius:10px;background:#1f2329;color:#fff;font-size:13px;box-shadow:var(--shadow-lg);animation:slidein .2s;word-break:break-word}.toast.err{background:var(--red)}.toast.ok{background:var(--green)}@keyframes slidein{0%{opacity:0;transform:translateY(-10px)}}@media(max-width:768px){.modal{max-width:100%;border-radius:14px 14px 0 0;align-self:flex-end;max-height:88vh}.modal-mask{align-items:flex-end;padding:0}.modal-foot{padding-bottom:calc(18px + var(--safe-b))}.toasts{top:calc(10px + var(--safe-t))}}