:root{color:#19213a;font-synthesis:none;background:#f4f6fb;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif}*{box-sizing:border-box}html,body,#root{min-width:320px;min-height:100%;margin:0}body{min-height:100dvh}button,input,select{font:inherit}button,.file{min-height:44px}button{cursor:pointer;color:inherit;background:#edf0f7;border:0;border-radius:12px;padding:.65rem .9rem}button:hover:not(:disabled){background:#dfe5f4}button:disabled{cursor:not-allowed;opacity:.52}button:focus-visible,input:focus-visible,.file:focus-within{outline-offset:2px;outline:3px solid #ff8a3d}h1,h2,p{overflow-wrap:anywhere}.login{text-align:center;background:radial-gradient(circle at 100% 0,#dbe5ff,#0000 42%),#f8f9fd;place-content:center;justify-items:center;gap:.75rem;min-height:100dvh;padding:1.5rem;display:grid}.login h1,.login p{margin:0}.login button{color:#fff;background:#315efb;min-width:10rem}.brand-mark{color:#fff;background:#315efb;border-radius:20px;place-items:center;width:64px;height:64px;font-size:1.35rem;font-weight:800;display:grid;box-shadow:0 12px 28px #315efb40}.shell{grid-template-columns:190px minmax(280px,340px) minmax(0,1fr);min-height:100dvh;display:grid;overflow:hidden}.rail{color:#fff;background:#18213b;flex-direction:column;gap:1.5rem;min-width:0;padding:1.25rem .9rem;display:flex}.rail-brand{align-items:center;gap:.65rem;min-width:0;display:flex}.rail-brand strong{background:#315efb;border-radius:14px;flex:0 0 44px;place-items:center;height:44px;display:grid}.rail-brand span,.account span{overflow-wrap:anywhere;min-width:0}.rail nav{gap:.5rem;display:grid}.rail nav button,.account button{color:#fff;text-align:left;background:0 0}.rail nav button.active,.rail nav button:hover,.account button:hover{background:#ffffff1f}.account{gap:.4rem;margin-top:auto;display:grid}.sidebar{background:#fff;border-right:1px solid #dfe4ee;min-width:0;min-height:0;overflow:auto}.rooms,.directory,.admin-panel{min-height:100%;padding:1.25rem}.rooms{flex-direction:column;gap:.65rem;display:flex}.rooms h1,.directory h1,.admin-panel h1{margin:0 0 .6rem;font-size:1.35rem}.rooms button{text-align:left;overflow-wrap:anywhere;width:100%}.rooms button.selected{color:#244aca;background:#e8edff}.panel-heading,.person-card,.request-card{justify-content:space-between;align-items:center;gap:.75rem;display:flex}.panel-heading h1{margin:0}.search,.admin-panel form{gap:.55rem;margin:1rem 0 1.25rem;display:grid}.search input,.admin-panel input,.admin-panel select,.keyboard-safe input{color:#19213a;background:#fff;border:1px solid #cbd3e3;border-radius:10px;min-width:0;min-height:44px;padding:.7rem .8rem}.admin-actions{flex:0 0 min(14rem,48%);gap:.4rem;display:grid}.admin-actions label{font-size:.78rem}.admin-actions input{width:100%}.directory section{margin-top:1.4rem}.directory h2{margin:0 0 .7rem;font-size:1rem}.person-card,.request-card{background:#fafbfe;border:1px solid #e1e6f0;border-radius:14px;margin-bottom:.65rem;padding:.8rem}.person-card>div,.person-card>span,.request-card>span{overflow-wrap:anywhere;min-width:0}.person-card strong,.person-card span{display:block}.person-card span{color:#667085;margin-top:.2rem;font-size:.84rem}.request-card>div{flex:none;gap:.4rem;display:flex}.conversation{background:#f5f7fb;grid-template-rows:auto minmax(0,1fr) auto auto auto;min-width:0;min-height:0;display:grid}.conversation header,.conversation footer{background:#fff;justify-content:space-between;align-items:center;gap:.75rem;padding:.9rem 1.25rem;display:flex}.conversation header h2{margin:0;font-size:1.15rem}.mobile-back,.mobile-tabs,.mobile-admin-entry{display:none}.global-alert{z-index:20;top:max(.75rem, env(safe-area-inset-top,0px));right:max(.75rem, env(safe-area-inset-right,0px));border-radius:12px;max-width:min(32rem,100vw - 1.5rem);position:fixed;box-shadow:0 8px 28px #202a442e}.timeline{overscroll-behavior:contain;min-width:0;min-height:0;padding:1.25rem;overflow:auto}.message{overflow-wrap:anywhere;color:#fff;background:#315efb;border-radius:16px 16px 4px;width:fit-content;max-width:min(72%,44rem);margin:0 0 .75rem auto;padding:.75rem 1rem}.message p{white-space:pre-wrap;margin:0 0 .35rem}.message button{color:#172033;margin-left:.65rem}.secure{color:#18794e;font-size:.83rem}.system-status{color:#59627a;text-align:right;overflow-wrap:anywhere;max-width:52%;font-size:.8rem}.availability,[role=alert],.upload{margin:0;padding:.65rem 1.25rem}.availability:empty{display:none}[role=alert]{color:#9b1c1c;overflow-wrap:anywhere;background:#fff1f1}.upload{background:#fff;align-items:center;gap:.75rem;display:flex}.upload progress{flex:1;min-width:0}.keyboard-safe{z-index:2;border-top:1px solid #dfe4ee;position:sticky;bottom:0}.keyboard-safe input[aria-label=消息]{flex:1}.file{cursor:pointer;background:#e8ecf5;border-radius:10px;align-items:center;padding:.65rem .9rem;display:inline-flex;position:relative}.file.disabled{cursor:not-allowed;opacity:.55}.file input{clip-path:inset(50%);white-space:nowrap;block-size:1px;inline-size:1px;position:absolute;overflow:hidden}.empty-state{color:#727b91;text-align:center}@media (width<=899px){.shell{height:100dvh;min-height:0;padding-bottom:calc(62px + env(safe-area-inset-bottom,0px));grid-template-rows:auto minmax(0,1fr);grid-template-columns:1fr;display:grid}.rail{min-height:58px;padding-top:max(.45rem, env(safe-area-inset-top,0px));padding-right:max(.75rem, env(safe-area-inset-right,0px));padding-bottom:.45rem;padding-left:max(.75rem, env(safe-area-inset-left,0px));flex-direction:row;grid-row:1;align-items:center;gap:.5rem}.rail-brand span,.rail nav{display:none}.rail-brand strong{flex-basis:44px}.mobile-admin-entry{align-items:center;display:inline-flex}.global-alert{top:max(4.25rem, calc(env(safe-area-inset-top,0px) + 3.5rem));right:max(.75rem, env(safe-area-inset-right,0px));left:max(.75rem, env(safe-area-inset-left,0px));max-width:none}.account{align-items:center;gap:.5rem;margin:0 0 0 auto;display:flex}.account button{text-align:center}.sidebar,.conversation{border:0;grid-area:2/1;width:100%;min-height:0}.sidebar{display:block}.conversation{display:none}.shell[data-mobile-panel=chat]{grid-template-rows:minmax(0,1fr);padding-bottom:0}.shell[data-mobile-panel=chat] .global-alert{top:max(.75rem, env(safe-area-inset-top,0px))}.shell[data-mobile-panel=chat] .rail,.shell[data-mobile-panel=chat] .sidebar,.shell[data-mobile-panel=chat] .mobile-tabs{display:none}.shell[data-mobile-panel=chat] .conversation{grid-row:1;height:100dvh;display:grid}.mobile-back{align-items:center;display:inline-flex}.conversation header,.conversation footer{padding:.65rem .75rem}.conversation header{padding-top:max(.65rem, env(safe-area-inset-top,0px));padding-right:max(.75rem, env(safe-area-inset-right,0px));padding-bottom:.65rem;padding-left:max(.75rem, env(safe-area-inset-left,0px));flex-wrap:wrap}.system-status{text-align:left;width:100%;max-width:none}.timeline{padding:.9rem}.message{max-width:86%}.keyboard-safe{padding-bottom:max(.65rem, env(safe-area-inset-bottom,0px))}.mobile-tabs{z-index:5;padding-top:.45rem;padding-right:max(.65rem, env(safe-area-inset-right,0px));padding-bottom:max(.45rem, env(safe-area-inset-bottom,0px));padding-left:max(.65rem, env(safe-area-inset-left,0px));background:#fffffff5;border-top:1px solid #dfe4ee;grid-template-columns:repeat(2,minmax(0,1fr));gap:.4rem;display:grid;position:fixed;bottom:0;left:0;right:0}.mobile-tabs button.active{color:#fff;background:#315efb}}@media (width<=520px){.panel-heading,.person-card,.request-card{flex-direction:column;align-items:stretch}.panel-heading button,.person-card button,.request-card button,.request-card>div{width:100%}.keyboard-safe{grid-template-columns:auto minmax(0,1fr) auto;display:grid}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}
