:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--pw-safe-top:env(safe-area-inset-top,0px);--pw-safe-right:env(safe-area-inset-right,0px);--pw-safe-bottom:env(safe-area-inset-bottom,0px);--pw-safe-left:env(safe-area-inset-left,0px);--pw-native-bottom-nav-height:0px;--app-bar-height:56px;--background:#fff;--surface:#fff;--text:#000;--light-black:#333;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-500:#6b7280;--gray-600:#4b5563;--gray-700:#374151;--blue:#0ea5e9;--warning:#f59e0b;--error:#dc2626;--side-margin:2vw}*{box-sizing:border-box}html,body{background:var(--background);width:100%;min-height:100%;color:var(--text);-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;overscroll-behavior:none;touch-action:pan-y;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;margin:0;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Helvetica Neue,Arial,sans-serif;overflow:hidden}button,textarea{font:inherit}button{color:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:0}button:disabled{cursor:default;opacity:.34}img{-webkit-user-drag:none;max-width:100%;display:block}::-webkit-scrollbar{width:0;height:0;display:none}.chat-screen{background:var(--background);position:fixed;inset:0;overflow:hidden}.fixed-app-bar{z-index:20;height:calc(var(--pw-safe-top) + var(--app-bar-height));padding-top:var(--pw-safe-top);padding-right:var(--pw-safe-right);padding-left:var(--pw-safe-left);background:linear-gradient(#fff 0% 72%,#fafafa 100%);border-bottom:1px solid #f3f4f6;position:fixed;top:0;left:0;right:0}.app-bar-row{height:var(--app-bar-height);padding:0 max(8px, var(--side-margin));grid-template-columns:minmax(76px,1fr) auto minmax(76px,1fr);align-items:center;display:grid;position:relative}.app-bar-row h1{min-width:0;color:var(--text);letter-spacing:0;text-align:center;text-overflow:ellipsis;white-space:nowrap;margin:0;font-size:16px;font-weight:700;overflow:hidden}.app-bar-leading{justify-content:flex-start;display:flex}.app-bar-leading img,.avatar-placeholder{color:#333;background:#e5e7eb;border:1px solid #d0d0d0;border-radius:9px;place-items:center;width:32px;height:32px;font-size:13px;font-weight:700;display:grid;overflow:hidden}.app-bar-actions{justify-content:flex-end;gap:8px;display:flex}.app-bar-actions button,.app-bar-back{color:#9ca3af;border-radius:50%;place-items:center;width:36px;height:36px;padding:0;display:grid}.app-bar-actions button:active,.app-bar-back:active{background:#f3f4f6;transform:scale(.94)}.app-bar-back{color:var(--light-black);justify-self:start}.chat-list-content{inset:calc(var(--pw-safe-top) + var(--app-bar-height)) var(--pw-safe-right) 0 var(--pw-safe-left);padding-bottom:calc(var(--pw-native-bottom-nav-height) + 16px);scrollbar-width:none;-webkit-overflow-scrolling:touch;position:absolute;overflow:hidden auto}.chat-room-list{background:var(--surface)}.swipe-row{border-bottom:.6px solid var(--gray-200);background:var(--surface);height:70px;position:relative;overflow:hidden}.swipe-actions{z-index:0;justify-content:space-between;display:flex;position:absolute;inset:0}.swipe-actions button{flex-direction:column;justify-content:center;align-items:center;gap:4px;width:92px;font-size:10px;font-weight:700;display:flex}.pin-action{color:var(--blue);background:#eaf7fd}.delete-action{color:var(--error);background:#fceeee}.chat-room-row{z-index:1;height:70px;padding:10px var(--side-margin);background:var(--surface);touch-action:pan-y;will-change:transform;align-items:center;transition:transform .19s cubic-bezier(.2,.8,.2,1);display:flex;position:relative}.chat-room-row:active{background:var(--surface)}.room-avatar{color:#333;background:#e5e7eb;border:1px solid #d0d0d0;border-radius:10px;flex:none;place-items:center;width:11vw;max-width:48px;height:11vw;max-height:48px;font-size:14px;font-weight:700;display:grid}.room-copy{flex:1;min-width:0;margin-left:3vw}.room-title-line,.room-message-line{align-items:center;min-width:0;display:flex}.room-title-line strong{text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:14px;overflow:hidden}.room-title-line time{color:var(--gray-500);margin-left:2vw;font-size:10px}.pin-mark{color:var(--warning);fill:currentColor;flex:none;margin-left:4px}.room-message-line{margin-top:1vw}.room-message-line>span{color:var(--gray-600);text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:13px;overflow:hidden}.unread-badge{background:var(--blue);color:#fff;border-radius:999px;place-items:center;min-width:20px;height:20px;margin-left:2vw;padding:0 5px;font-size:10px;display:grid}.state-message{min-height:calc(100dvh - var(--pw-safe-top) - var(--app-bar-height) - var(--pw-native-bottom-nav-height));color:var(--gray-500);text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:24px;display:flex}.state-message p{margin:18px 0 0;font-size:14px;font-weight:600}.state-message button{background:var(--gray-100);color:var(--gray-700);border-radius:18px;margin-top:16px;padding:9px 18px;font-size:13px;font-weight:700}.empty-chat-state{padding-bottom:min(50vw,220px)}.empty-icon-orbit{width:126px;height:126px;color:var(--blue);background:radial-gradient(circle,#eaf7fd 0 42%,#0000 43%),conic-gradient(from 45deg,#0000,#eaf7fd,#0000 70%);border-radius:50%;place-items:center;animation:2.8s ease-in-out infinite empty-float;display:grid}@keyframes empty-float{50%{transform:translateY(-6px)}}.chat-list-skeleton{padding-top:4px}.skeleton-row{height:70px;padding:10px var(--side-margin);border-bottom:1px solid var(--gray-100);align-items:center;display:flex}.skeleton-row>span{background:var(--gray-100);border-radius:10px;width:11vw;height:11vw}.skeleton-row>div{flex:1;gap:8px;margin-left:3vw;display:grid}.skeleton-row i{background:var(--gray-100);border-radius:5px;width:38%;height:10px;display:block}.skeleton-row i:last-child{width:74%}.sheet-backdrop{z-index:50;padding:10px max(10px, var(--pw-safe-right)) calc(var(--pw-safe-bottom) + 10px) max(10px, var(--pw-safe-left));-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#00000038;justify-content:center;align-items:flex-end;display:flex;position:fixed;inset:0}.sort-sheet{width:min(100%,520px)}.sheet-title,.sort-sheet button{border-bottom:.5px solid var(--gray-200);color:#007aff;text-align:center;background:#fffffff5;width:100%;margin:0}.sheet-title{color:var(--gray-500);border-radius:14px 14px 0 0;padding:13px;font-size:13px}.sort-sheet button{min-height:52px;font-size:17px}.sort-sheet button.selected{font-weight:700}.sort-sheet button:last-of-type{border-radius:0 0 14px 14px}.sort-sheet button.cancel{border:0;border-radius:14px;margin-top:8px;font-weight:700}.chat-room-screen{flex-direction:column;display:flex}.chat-room-app-bar .app-bar-row{grid-template-columns:76px minmax(0,1fr) 76px}.chat-room-app-bar .app-bar-actions{gap:4px}.room-layout{height:100dvh;min-height:0;padding-top:calc(var(--pw-safe-top) + var(--app-bar-height));padding-right:var(--pw-safe-right);padding-left:var(--pw-safe-left);flex-direction:column;display:flex}.message-list{scrollbar-width:none;-webkit-overflow-scrolling:touch;flex:auto;min-height:0;padding:12px 0;overflow:hidden auto}.date-label{background:var(--gray-100);width:fit-content;color:var(--gray-500);border-radius:12px;margin:12px auto 8px;padding:4px 12px;font-size:10px;font-weight:700}.message-row{padding:1.2vw var(--side-margin);align-items:flex-start;display:flex}.message-row.mine{justify-content:flex-end}.sender-avatar{border:.8px solid var(--gray-200);background:var(--gray-100);width:36px;height:36px;color:var(--gray-500);border-radius:10px;flex:none;place-items:center;font-size:12px;font-weight:700;display:grid;overflow:hidden}.sender-avatar img{object-fit:cover;width:100%;height:100%}.message-stack{flex-direction:column;align-items:flex-end;max-width:74vw;display:flex}.theirs .message-stack{align-items:flex-start;max-width:64vw;margin-left:1.8vw}.message-bubble{background:var(--blue);color:#fff;overflow-wrap:anywhere;-webkit-user-select:text;user-select:text;border-radius:4.5vw;padding:2.6vw 3.8vw;font-size:14px;line-height:1.35}.theirs .message-bubble{border:.8px solid var(--gray-200);color:#000;background:#fff}.message-stack time{color:var(--gray-500);margin-top:.6vw;font-size:10px}.message-loading{justify-content:center;align-items:center;gap:6px;height:100%;display:flex}.message-loading span{background:var(--gray-300);border-radius:50%;width:7px;height:7px;animation:1s ease-in-out infinite loading-dot}.message-loading span:nth-child(2){animation-delay:.12s}.message-loading span:nth-child(3){animation-delay:.24s}@keyframes loading-dot{50%{opacity:.3;transform:translateY(-4px)}}.state-message.compact{min-height:100%}.message-composer{z-index:10;padding:2.5vw var(--side-margin) max(2.5vw, var(--pw-safe-bottom));border-top:1px solid var(--gray-200);background:#fff;flex:none;position:relative}.composer-row{align-items:flex-end;gap:8px;display:flex}.attachment-toggle,.send-button{border-radius:50%;flex:none;place-items:center;width:10.5vw;max-width:46px;height:10.5vw;max-height:46px;display:grid}.attachment-toggle{color:var(--gray-600);transition:color .18s,transform .18s}.attachment-toggle.open{color:var(--blue);transform:rotate(45deg)}.send-button{background:var(--blue);color:#fff}.send-button:disabled{background:var(--gray-200);color:var(--gray-500);opacity:1}.composer-row textarea{resize:none;background:var(--gray-100);color:#000;-webkit-user-select:text;user-select:text;border:0;border-radius:5.5vw;outline:none;flex:1;min-height:10.5vw;max-height:32vw;padding:3vw 4vw;font-size:16px;line-height:1.25;overflow-y:auto}.composer-row textarea::placeholder{color:var(--gray-500)}.attachment-tray{background:var(--gray-100);border-radius:8px;justify-content:space-between;margin-bottom:12px;padding:8px 12px;display:flex}.attachment-tray button{width:17vw;color:var(--gray-700);flex-direction:column;align-items:center;gap:4px;font-size:10px;font-weight:700;display:flex}.attachment-tray button>span{border:1px solid var(--gray-200);background:#ffffffb3;border-radius:50%;place-items:center;width:10.5vw;max-width:46px;height:10.5vw;max-height:46px;display:grid}.attachment-tray button:disabled{color:var(--gray-300);opacity:1}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:1ms!important;animation-duration:1ms!important}}