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.session-actions{opacity:1}.sidebar-link{border-radius:11px;align-items:center;gap:10px;min-height:46px;padding:7px 9px;font-size:14px;display:flex}.sidebar-link:hover{background:hsl(var(--muted))}.control-label{margin-top:16px;font-size:13px;font-weight:600;display:block}.messages-stage{isolation:isolate;background:0 0;flex:1;min-height:0;position:relative;overflow:hidden}.messages-background{z-index:0;inset:calc(-1 * 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.82);stroke:#e8bfc8;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.9px}.mint-letter-mark-speck{fill:#edc7cf}.app-shell[data-theme-preset=mint-letter] .messages-stage{background:radial-gradient(circle at 50% 44%, hsl(var(--accent) / .2), transparent 31%), hsl(var(--panel))}.app-shell[data-theme-preset=mint-letter] .default-chat-backdrop{color:#8fc79a;opacity:.56;padding-bottom:4vh}.app-shell[data-theme-preset=mint-letter] .default-chat-backdrop--conversation{opacity:.18}.app-shell[data-theme-preset=mint-letter] .themed-letter-backdrop-mark{width:min(230px,54vw)}.app-shell[data-theme-preset=mint-letter] .themed-letter-empty-mark{color:#8fc79a;width:min(185px,56vw)}.app-shell[data-theme-preset=mint-letter] .user-message,.app-shell[data-theme-preset=mint-letter] .assistant-message:not(.assistant-message-plain){border-color:color-mix(in srgb, #a5d6a7 62%, hsl(var(--border)));box-shadow:0 4px 18px #60736809}.app-shell[data-theme-preset=mint-letter] .user-message{background:color-mix(in srgb, var(--user-bubble-background) var(--user-bubble-strength,14%), #fcfffc)}.app-shell[data-theme-preset=mint-letter] .assistant-message:not(.assistant-message-plain){background:color-mix(in srgb, var(--assistant-bubble-background) 92%, #eaf6ec)}.app-shell[data-theme-preset=mint-letter] .chat-header,.app-shell[data-theme-preset=mint-letter] .composer-card{background:color-mix(in srgb, #eaf6ec 45%, hsl(var(--panel)));border-color:#a5d6a780}.app-shell[data-theme-preset=moonlight-letter]{--letter-theme-line:145 164 207;--letter-theme-shadow:86 102 137}.app-shell[data-theme-preset=sakura-mist-letter]{--letter-theme-line:220 166 176;--letter-theme-shadow:128 88 95}.app-shell[data-theme-preset=cloud-gray-letter]{--letter-theme-line:168 168 168;--letter-theme-shadow:65 65 65}.app-shell:is([data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]){--letter-theme-surface:color-mix(in srgb, hsl(var(--panel)) 96%, rgb(var(--letter-theme-line)));--letter-theme-tint:color-mix(in srgb, hsl(var(--panel)) 86%, rgb(var(--letter-theme-line)))}.app-shell:is([data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .messages-stage{background:radial-gradient(circle at 50% 47%, rgb(var(--letter-theme-line) / .22), transparent 33%), linear-gradient(180deg, color-mix(in srgb, hsl(var(--panel)) 97%, rgb(var(--letter-theme-line))), color-mix(in srgb, hsl(var(--panel)) 91%, rgb(var(--letter-theme-line))))}.app-shell:is([data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .default-chat-backdrop{color:rgb(var(--letter-theme-line));opacity:.5;padding-bottom:4vh}.app-shell:is([data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .default-chat-backdrop--conversation{opacity:.17}.app-shell:is([data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .themed-letter-backdrop-mark{width:min(230px,54vw)}.app-shell:is([data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .themed-letter-empty-mark{width:min(190px,56vw);color:rgb(var(--letter-theme-line))}.app-shell:is([data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .user-message,.app-shell:is([data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .assistant-message:not(.assistant-message-plain){border-color:rgb(var(--letter-theme-line) / .48);box-shadow:0 5px 18px rgb(var(--letter-theme-shadow) / .04)}.app-shell:is([data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .user-message{background:color-mix(in srgb, var(--user-bubble-background) var(--user-bubble-strength,14%), var(--letter-theme-surface))}.app-shell:is([data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .assistant-message:not(.assistant-message-plain){background:color-mix(in srgb, var(--assistant-bubble-background) 92%, var(--letter-theme-tint))}.app-shell:is([data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .chat-header,.app-shell:is([data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .composer-card{border-color:rgb(var(--letter-theme-line) / .46);background:color-mix(in srgb, rgb(var(--letter-theme-line)) 9%, hsl(var(--panel)))}.app-shell:is([data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .empty-chat h1{color:hsl(var(--foreground))}:root[data-color-mode=amoled] .app-shell:is([data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .messages-stage{background:#000}.messages-viewport{z-index:2;overscroll-behavior:contain;background:0 0;height:100%;min-height:0;padding:28px 24px 22px;position:relative;overflow-y:auto}.empty-chat{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:52vh;display:flex}.empty-chat-mark{color:#dfb66f;width:min(220px,64vw);height:auto}.empty-chat h1{color:#4b4743;letter-spacing:.075em;text-wrap:balance;margin:0;font-size:19px;font-weight:400;line-height:1.5}.empty-chat.has-default-mark h1{margin-top:17px}.app-shell[data-theme-preset=mint-letter] .empty-chat h1{color:hsl(var(--foreground))}.empty-chat-mark .everletter-mark-thread{opacity:.5}:root[data-color-mode=dark] .default-chat-backdrop,:root[data-color-mode=amoled] .default-chat-backdrop{opacity:.08}:root[data-color-mode=dark] .empty-chat h1,:root[data-color-mode=amoled] .empty-chat h1{color:hsl(var(--foreground) / .82)}@media (prefers-color-scheme:dark){:root[data-color-mode=system] .default-chat-backdrop{opacity:.08}:root[data-color-mode=system] .empty-chat h1{color:hsl(var(--foreground) / .82)}}.message-row{align-items:flex-start;gap:12px;width:100%;display:flex}.message-list{z-index:1;gap:var(--message-gap);position:relative}.message-row[data-role=user]{justify-content:flex-end}.message-column{flex-direction:column;min-width:0;max-width:min(82%,680px);display:flex}.user-message{overflow-wrap:anywhere;border-radius:var(--bubble-radius) var(--bubble-radius) max(4px, calc(var(--bubble-radius) / 3)) var(--bubble-radius);border:1px solid hsl(var(--accent) / .24);background:var(--user-bubble-background);background:color-mix(in srgb, var(--user-bubble-background) var(--user-bubble-strength,14%), hsl(var(--panel)));min-width:0;max-width:100%;color:var(--user-bubble-text);box-shadow:0 3px 14px hsl(var(--foreground) / .025);padding:10px 15px}.assistant-message{overflow-wrap:anywhere;border:1px solid color-mix(in srgb, hsl(var(--border)) 78%, hsl(var(--accent)));border-radius:var(--bubble-radius) var(--bubble-radius) var(--bubble-radius) max(4px, calc(var(--bubble-radius) / 3));background:var(--assistant-bubble-background);min-width:0;max-width:100%;color:var(--assistant-bubble-text);box-shadow:0 3px 14px hsl(var(--foreground) / .025);padding:10px 15px}.assistant-message-plain{color:var(--assistant-bubble-text);box-shadow:none;background:0 0;border-color:#0000;border-radius:0;padding-left:2px;padding-right:2px}.app-shell[data-assistant-bubble-style=jelly] .assistant-message:not(.assistant-message-plain),.app-shell[data-user-bubble-style=jelly] .user-message{border-color:var(--bubble-material-edge);box-shadow:inset 0 1px 0 var(--bubble-material-highlight), inset 0 -1px 0 hsl(var(--accent) / .08), 0 7px 20px hsl(var(--accent) / .1);-webkit-backdrop-filter:blur(5px)saturate(1.22);backdrop-filter:blur(5px)saturate(1.22)}.app-shell[data-assistant-bubble-style=jelly] .assistant-message:not(.assistant-message-plain){background:linear-gradient(180deg, var(--bubble-material-jelly-glint) 0, transparent 7px), color-mix(in srgb, var(--assistant-bubble-background) 76%, hsl(var(--accent) / .22))}.app-shell[data-user-bubble-style=jelly] .user-message{background:linear-gradient(180deg, var(--bubble-material-jelly-glint) 0, transparent 7px), color-mix(in srgb, var(--user-bubble-background) 72%, hsl(var(--panel) / .58))}.app-shell[data-assistant-bubble-style=glass] .assistant-message:not(.assistant-message-plain),.app-shell[data-user-bubble-style=glass] .user-message{border-color:var(--bubble-material-edge);box-shadow:inset 0 1px 0 var(--bubble-material-glass-highlight), 0 8px 24px hsl(var(--foreground) / .065);-webkit-backdrop-filter:blur(20px)saturate(1.08);backdrop-filter:blur(20px)saturate(1.08)}.app-shell[data-assistant-bubble-style=glass] .assistant-message:not(.assistant-message-plain){background:linear-gradient(180deg, var(--bubble-material-glass-reflection) 0, transparent 7px), color-mix(in srgb, var(--assistant-bubble-background) 42%, hsl(var(--panel) / .38))}.app-shell[data-user-bubble-style=glass] .user-message{background:linear-gradient(180deg, var(--bubble-material-glass-reflection-user) 0, transparent 7px), color-mix(in srgb, var(--user-bubble-background) 42%, hsl(var(--panel) / .44))}.app-shell[data-assistant-bubble-style=frosted] .assistant-message:not(.assistant-message-plain),.app-shell[data-user-bubble-style=frosted] .user-message{border-color:color-mix(in srgb, hsl(var(--border)) 72%, hsl(var(--panel)));box-shadow:0 5px 18px hsl(var(--foreground) / .045);-webkit-backdrop-filter:blur(28px)saturate(.84);backdrop-filter:blur(28px)saturate(.84)}.app-shell[data-assistant-bubble-style=frosted] .assistant-message:not(.assistant-message-plain){background:radial-gradient(circle, hsl(var(--foreground) / .025) 0 .55px, transparent .75px) 0 0 / 4px 4px, color-mix(in srgb, var(--assistant-bubble-background) 84%, hsl(var(--panel)))}.app-shell[data-user-bubble-style=frosted] .user-message{background:radial-gradient(circle, hsl(var(--foreground) / .025) 0 .55px, transparent .75px) 0 0 / 4px 4px, color-mix(in srgb, var(--user-bubble-background) 34%, hsl(var(--panel)))}.app-shell[data-assistant-bubble-style=paper] .assistant-message:not(.assistant-message-plain),.app-shell[data-user-bubble-style=paper] .user-message{border-color:color-mix(in srgb, hsl(var(--accent)) 24%, #d8bd8b);background-color:color-mix(in srgb, var(--assistant-bubble-background) 78%, #fff9ed);background-image:linear-gradient(#ffffff57 0,#0000 7px);box-shadow:0 5px 18px #69512d0e}.app-shell[data-user-bubble-style=paper] .user-message{background-color:color-mix(in srgb, var(--user-bubble-background) 34%, #fff7ed)}.app-shell[data-assistant-bubble-style=outline] .assistant-message:not(.assistant-message-plain),.app-shell[data-user-bubble-style=outline] .user-message{box-shadow:none;background:0 0}.app-shell[data-assistant-bubble-style=outline] .assistant-message:not(.assistant-message-plain){border-color:color-mix(in srgb, var(--assistant-bubble-background) 46%, hsl(var(--border)))}.app-shell[data-user-bubble-style=outline] .user-message{border-color:color-mix(in srgb, var(--user-bubble-background) 46%, hsl(var(--border)))}.app-shell[data-material-render=reduced]:is([data-assistant-bubble-style=jelly],[data-assistant-bubble-style=glass],[data-assistant-bubble-style=frosted]) .assistant-message:not(.assistant-message-plain),.app-shell[data-material-render=reduced]:is([data-user-bubble-style=jelly],[data-user-bubble-style=glass],[data-user-bubble-style=frosted]) .user-message{box-shadow:0 4px 14px hsl(var(--foreground) / .045);-webkit-backdrop-filter:none;backdrop-filter:none}.app-shell[data-material-render=reduced][data-assistant-bubble-style=glass] .assistant-message:not(.assistant-message-plain),.app-shell[data-material-render=reduced][data-assistant-bubble-style=frosted] .assistant-message:not(.assistant-message-plain){background:color-mix(in srgb, var(--assistant-bubble-background) 88%, hsl(var(--panel)))}.app-shell[data-material-render=reduced][data-user-bubble-style=glass] .user-message,.app-shell[data-material-render=reduced][data-user-bubble-style=frosted] .user-message{background:color-mix(in srgb, var(--user-bubble-background) 48%, hsl(var(--panel)))}@supports not ((-webkit-backdrop-filter:blur(1px)) or 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hsl(var(--border) / .88);background:hsl(var(--muted) / .58);width:min(100%,620px);color:hsl(var(--muted-foreground));border-radius:14px;margin:0 0 8px;overflow:hidden}.reasoning-panel-summary{cursor:pointer;letter-spacing:.01em;grid-template-columns:26px minmax(0,1fr) 20px;align-items:center;gap:7px;min-height:38px;padding:0 11px 0 8px;font-size:12px;font-weight:600;list-style:none;display:grid}.reasoning-panel-summary::-webkit-details-marker{display:none}.reasoning-panel-icon{border-right:1px solid hsl(var(--border));width:26px;height:100%;color:hsl(var(--muted-foreground) / .82);place-items:center;display:grid}.reasoning-panel-chevron{transition:transform .16s}.reasoning-panel[open] .reasoning-panel-chevron{transform:rotate(180deg)}.reasoning-panel-content{overscroll-behavior:contain;scrollbar-gutter:stable;white-space:pre-wrap;overflow-wrap:anywhere;max-height:clamp(72px,11vh,100px);font-family:var(--chat-font-family);font-size:calc(12px * var(--chat-font-scale));grid-template-columns:26px minmax(0,1fr);gap:7px;padding:0 12px 12px 8px;line-height:1.72;display:grid;overflow-y:auto}.settings-page input[type=checkbox],.settings-page input[type=radio]{accent-color:hsl(var(--accent))}.reasoning-panel-rail{background:hsl(var(--border));justify-self:center;width:1px;height:100%;min-height:28px}.reasoning-tool-row{grid-template-columns:20px minmax(0,1fr) auto;align-items:start;gap:8px;min-width:0;font-size:14px;display:grid}.reasoning-tool-copy{flex-wrap:wrap;align-items:baseline;gap:2px 8px;min-width:0;display:flex}.reasoning-tool-name{overflow-wrap:anywhere;min-width:0;color:hsl(var(--muted-foreground));font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:11px}.reasoning-tool-state{color:hsl(var(--muted-foreground));white-space:nowrap;flex-shrink:0;font-size:12px}.message-attachment-list{flex-wrap:wrap;gap:6px;max-width:100%;margin-top:7px;display:flex}.message-attachment-chip{border:1px solid 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.72);outline-offset:7px;border-radius:18px}.letter-envelope-button:disabled{cursor:default}.letter-envelope-scene,.letter-paper-reader,.letter-list-envelope{--letter-template-line:#cfa34f;--letter-template-primary:#9b7551;--letter-template-secondary:#efa0aa;--letter-template-flower:#fffdfb;--letter-template-gold:#d2a34e;--letter-template-paper-start:#fffdf9;--letter-template-paper-end:#fbf0df;--letter-template-ink:#443d36;--letter-template-muted:#7d7065;--letter-template-rule:#eadbc6;--letter-template-seal-start:#f8e6bc;--letter-template-seal-end:#d6a851;--letter-template-seal-border:#ba8b3d;--letter-template-shadow:#6850352b;--letter-template-dark-line:#d6b36f;--letter-template-dark-primary:#c19a78;--letter-template-dark-secondary:#df9da9;--letter-template-dark-flower:#3a2d2e;--letter-template-dark-gold:#e0bc73;--letter-template-dark-paper-start:#2d2722;--letter-template-dark-paper-end:#211d1a;--letter-template-dark-ink:#f2e9df;--letter-template-dark-muted:#bfb3a7;--letter-template-dark-rule:#50463e;--letter-template-dark-seal-start:#d2b472;--letter-template-dark-seal-end:#9d7537;--letter-template-dark-seal-border:#e0bd76;--letter-template-dark-shadow:#00000047}:is(.letter-envelope-scene,.letter-paper-reader,.letter-list-envelope)[data-template=template_keys]{--letter-template-line:#a58c59;--letter-template-primary:#6f745e;--letter-template-secondary:#afc5b6;--letter-template-flower:#f4f0e2;--letter-template-gold:#b79552;--letter-template-paper-start:#fffefa;--letter-template-paper-end:#ebe7d8;--letter-template-ink:#403b34;--letter-template-muted:#70695e;--letter-template-rule:#d8ceb8;--letter-template-seal-start:#ddc487;--letter-template-seal-end:#a88346;--letter-template-seal-border:#8f713b;--letter-template-shadow:#47412f2b;--letter-template-dark-line:#c7aa70;--letter-template-dark-primary:#9da487;--letter-template-dark-secondary:#9ab4a5;--letter-template-dark-flower:#34372f;--letter-template-dark-gold:#d4b36d;--letter-template-dark-paper-start:#23221d;--letter-template-dark-paper-end:#1b1a17;--letter-template-dark-ink:#f1ebde;--letter-template-dark-muted:#bdb4a3;--letter-template-dark-rule:#49463c;--letter-template-dark-seal-start:#c9ad71;--letter-template-dark-seal-end:#896c39;--letter-template-dark-seal-border:#d3b779;--letter-template-dark-shadow:#0000004d}:is(.letter-envelope-scene,.letter-paper-reader,.letter-list-envelope)[data-template=template_wax_rose]{--letter-template-line:#b59278;--letter-template-primary:#71806b;--letter-template-secondary:#c98692;--letter-template-flower:#f7e4e1;--letter-template-gold:#b88d4d;--letter-template-paper-start:#fffcf8;--letter-template-paper-end:#eee2d9;--letter-template-ink:#44363a;--letter-template-muted:#765f65;--letter-template-rule:#dec8c0;--letter-template-seal-start:#aa4258;--letter-template-seal-end:#762235;--letter-template-seal-border:#672030;--letter-template-shadow:#562c312e;--letter-template-dark-line:#c19a83;--letter-template-dark-primary:#91a087;--letter-template-dark-secondary:#c45670;--letter-template-dark-flower:#482b31;--letter-template-dark-gold:#d0a45c;--letter-template-dark-paper-start:#271d20;--letter-template-dark-paper-end:#1f1719;--letter-template-dark-ink:#f3e8e8;--letter-template-dark-muted:#c7afb4;--letter-template-dark-rule:#54373d;--letter-template-dark-seal-start:#bd526a;--letter-template-dark-seal-end:#7d2639;--letter-template-dark-seal-border:#d16b81;--letter-template-dark-shadow:#00000052}:is(.letter-envelope-scene,.letter-paper-reader,.letter-list-envelope)[data-template=template_lily_feather]{--letter-template-line:#c8b78b;--letter-template-primary:#94aa8d;--letter-template-secondary:#99a7ab;--letter-template-flower:#fffef8;--letter-template-gold:#bda66f;--letter-template-paper-start:#fffefa;--letter-template-paper-end:#eceae2;--letter-template-ink:#3d423c;--letter-template-muted:#677066;--letter-template-rule:#d9d4c5;--letter-template-seal-start:#e1d5ad;--letter-template-seal-end:#bca36b;--letter-template-seal-border:#a38b59;--letter-template-shadow:#424b3f1f;--letter-template-dark-line:#c7b98f;--letter-template-dark-primary:#a6b9a1;--letter-template-dark-secondary:#a9b8bc;--letter-template-dark-flower:#343a33;--letter-template-dark-gold:#d4bf86;--letter-template-dark-paper-start:#20241f;--letter-template-dark-paper-end:#191d18;--letter-template-dark-ink:#edf1eb;--letter-template-dark-muted:#b4bdb1;--letter-template-dark-rule:#474e45;--letter-template-dark-seal-start:#cfbd84;--letter-template-dark-seal-end:#8f7a4d;--letter-template-dark-seal-border:#d8c58c;--letter-template-dark-shadow:#0000003d}:is(.letter-envelope-scene,.letter-paper-reader,.letter-list-envelope)[data-template=template_blue_hydrangea]{--letter-template-line:#8799af;--letter-template-primary:#748579;--letter-template-secondary:#8fa5bd;--letter-template-flower:#dce6ef;--letter-template-gold:#c2a15d;--letter-template-paper-start:#fcfdfb;--letter-template-paper-end:#e8ecf0;--letter-template-ink:#34414f;--letter-template-muted:#657181;--letter-template-rule:#c9d3df;--letter-template-seal-start:#b9cada;--letter-template-seal-end:#7e96b0;--letter-template-seal-border:#a98b50;--letter-template-shadow:#384a5e29;--letter-template-dark-line:#9cb0c8;--letter-template-dark-primary:#93a999;--letter-template-dark-secondary:#a8bad0;--letter-template-dark-flower:#344455;--letter-template-dark-gold:#d2b574;--letter-template-dark-paper-start:#1d242c;--letter-template-dark-paper-end:#171d24;--letter-template-dark-ink:#ecf1f6;--letter-template-dark-muted:#b3bfcd;--letter-template-dark-rule:#3d4a58;--letter-template-dark-seal-start:#9db3c9;--letter-template-dark-seal-end:#607a96;--letter-template-dark-seal-border:#d0b16d;--letter-template-dark-shadow:#0000004d}:is(:root[data-color-mode=dark],:root[data-color-mode=amoled]) :is(.letter-envelope-scene,.letter-paper-reader,.letter-list-envelope)[data-template]{--letter-template-line:var(--letter-template-dark-line);--letter-template-primary:var(--letter-template-dark-primary);--letter-template-secondary:var(--letter-template-dark-secondary);--letter-template-flower:var(--letter-template-dark-flower);--letter-template-gold:var(--letter-template-dark-gold);--letter-template-paper-start:var(--letter-template-dark-paper-start);--letter-template-paper-end:var(--letter-template-dark-paper-end);--letter-template-ink:var(--letter-template-dark-ink);--letter-template-muted:var(--letter-template-dark-muted);--letter-template-rule:var(--letter-template-dark-rule);--letter-template-seal-start:var(--letter-template-dark-seal-start);--letter-template-seal-end:var(--letter-template-dark-seal-end);--letter-template-seal-border:var(--letter-template-dark-seal-border);--letter-template-shadow:var(--letter-template-dark-shadow)}@media (prefers-color-scheme:dark){:root[data-color-mode=system] :is(.letter-envelope-scene,.letter-paper-reader,.letter-list-envelope)[data-template]{--letter-template-line:var(--letter-template-dark-line);--letter-template-primary:var(--letter-template-dark-primary);--letter-template-secondary:var(--letter-template-dark-secondary);--letter-template-flower:var(--letter-template-dark-flower);--letter-template-gold:var(--letter-template-dark-gold);--letter-template-paper-start:var(--letter-template-dark-paper-start);--letter-template-paper-end:var(--letter-template-dark-paper-end);--letter-template-ink:var(--letter-template-dark-ink);--letter-template-muted:var(--letter-template-dark-muted);--letter-template-rule:var(--letter-template-dark-rule);--letter-template-seal-start:var(--letter-template-dark-seal-start);--letter-template-seal-end:var(--letter-template-dark-seal-end);--letter-template-seal-border:var(--letter-template-dark-seal-border);--letter-template-shadow:var(--letter-template-dark-shadow)}}.letter-envelope-scene{aspect-ratio:1.48;perspective:1100px;transform-origin:50% 74%;width:min(78vw,100%,330px);display:block;position:relative}.letter-envelope-shadow{background:var(--letter-template-shadow);filter:blur(13px);border-radius:50%;height:16%;position:absolute;bottom:3%;left:7%;right:7%;transform:scaleX(.92)}.letter-envelope-shell{height:72%;transform-style:preserve-3d;position:absolute;bottom:7%;left:4%;right:4%}.letter-envelope-back,.letter-envelope-front,.letter-envelope-flap,.letter-envelope-paper,.letter-envelope-decoration,.letter-envelope-seal{display:block;position:absolute}.letter-envelope-back{z-index:1;border:2px solid var(--letter-template-line);background:linear-gradient(145deg, color-mix(in srgb, var(--letter-template-paper-start) 88%, white), var(--letter-template-paper-end));border-radius:13px;inset:0;box-shadow:inset 0 0 0 1px #ffffff9e}.letter-envelope-paper{z-index:2;border:1px solid var(--letter-template-rule);background:linear-gradient(90deg, transparent 0 8%, color-mix(in srgb, var(--letter-template-secondary) 18%, transparent) 8% 8.5%, transparent 8.5%), var(--letter-template-paper-start);height:78%;color:var(--letter-template-muted);text-align:left;border-radius:7px 7px 4px 4px;padding:19px 20px;bottom:12%;left:10%;right:10%;overflow:hidden;transform:translateY(19%)}.letter-envelope-paper span,.letter-envelope-paper strong{text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.letter-envelope-paper span{letter-spacing:.08em;font-size:10px;font-weight:500}.letter-envelope-paper strong{margin-top:7px;font-family:Everletter Serif,Songti SC,serif;font-size:15px;font-weight:600}.letter-envelope-front{z-index:4;border:2px solid var(--letter-template-line);background:linear-gradient(32deg, transparent 49.5%, color-mix(in srgb, var(--letter-template-line) 64%, transparent) 50%, transparent 50.6%) left bottom / 50% 100% no-repeat, linear-gradient(-32deg, transparent 49.5%, color-mix(in srgb, var(--letter-template-line) 64%, transparent) 50%, transparent 50.6%) right bottom / 50% 100% no-repeat, linear-gradient(145deg, var(--letter-template-paper-start), var(--letter-template-paper-end));clip-path:polygon(0 28%,50% 66%,100% 28%,100% 100%,0 100%);border-radius:13px;inset:0}.letter-envelope-flap{z-index:5;border-top:2px solid var(--letter-template-line);background:linear-gradient(160deg, color-mix(in srgb, var(--letter-template-paper-start) 92%, white), var(--letter-template-paper-end));clip-path:polygon(0 0,100% 0,50% 82%);transform-origin:50% 0;backface-visibility:visible;border-radius:12px 12px 0 0;height:67%;top:0;left:0;right:0;transform:rotateX(0)}.letter-envelope-decoration{z-index:7;filter:drop-shadow(0 2px 2px #5f412d14);pointer-events:none;width:27%;top:-12%;right:4%}.letter-envelope-decoration svg{width:100%;height:auto;display:block}.letter-template-motif-primary,.letter-template-motif-secondary,.letter-template-motif-flower,.letter-template-motif-gold{stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}.letter-template-motif-primary{fill:none;stroke:var(--letter-template-primary);stroke-width:1.7px}.letter-template-motif-secondary{fill:color-mix(in srgb, var(--letter-template-secondary) 32%, transparent);stroke:var(--letter-template-secondary);stroke-width:1.45px}.letter-template-motif-flower{fill:var(--letter-template-flower);stroke:var(--letter-template-secondary);stroke-width:1.5px}.letter-template-motif-gold{fill:color-mix(in srgb, var(--letter-template-gold) 18%, var(--letter-template-paper-start));stroke:var(--letter-template-gold);stroke-width:1.5px}.letter-template-motif-gold-fill{fill:var(--letter-template-gold);stroke:none}.letter-envelope-scene[data-template=template_keys] .letter-envelope-decoration{width:31%;top:-19%;right:0}.letter-envelope-scene[data-template=template_wax_rose] .letter-envelope-decoration{width:29%;top:-17%;right:3%}.letter-envelope-scene[data-template=template_lily_feather] .letter-envelope-decoration{width:34%;top:-19%;right:1%}.letter-envelope-scene[data-template=template_blue_hydrangea] .letter-envelope-decoration{width:30%;top:42%;left:-4%;right:auto}.letter-envelope-seal{z-index:8;border:1px solid var(--letter-template-seal-border);background:radial-gradient(circle, color-mix(in srgb, var(--letter-template-gold) 72%, white) 0 19%, transparent 20%), radial-gradient(circle at 35% 30%, var(--letter-template-seal-start), var(--letter-template-seal-end) 72%);border-radius:50%;width:27px;height:27px;top:47%;left:50%;transform:translate(-50%,-50%);box-shadow:0 2px 5px #6c4b222e}.letter-envelope-instruction{color:hsl(var(--muted-foreground));letter-spacing:.04em;margin-top:13px;font-size:13px}.letter-list-envelope{border:1px solid color-mix(in srgb, var(--letter-template-line) 50%, transparent);background:color-mix(in srgb, var(--letter-template-paper-end) 62%, hsl(var(--panel)));border-radius:12px;flex:0 0 44px;width:44px;height:44px;display:block;position:relative;overflow:hidden}.letter-list-envelope-paper,.letter-list-envelope-body,.letter-list-envelope-flap,.letter-list-envelope-motif{pointer-events:none;display:block;position:absolute}.letter-list-envelope-paper{border:1px solid var(--letter-template-rule);background:var(--letter-template-paper-start);border-radius:3px 3px 1px 1px;height:18px;transition:transform .18s;bottom:15px;left:11px;right:11px;transform:translateY(4px)}.letter-list-envelope-body{border:1px solid var(--letter-template-line);background:linear-gradient(32deg, transparent 49%, color-mix(in srgb, var(--letter-template-line) 52%, transparent) 50%, transparent 51%) left bottom / 50% 100% no-repeat, linear-gradient(-32deg, transparent 49%, color-mix(in srgb, var(--letter-template-line) 52%, transparent) 50%, transparent 51%) right bottom / 50% 100% no-repeat, var(--letter-template-paper-end);clip-path:polygon(0 24%,50% 62%,100% 24%,100% 100%,0 100%);border-radius:5px;height:22px;bottom:7px;left:6px;right:6px}.letter-list-envelope-flap{z-index:2;border-top:1px solid var(--letter-template-line);background:var(--letter-template-paper-start);clip-path:polygon(0 0,100% 0,50% 92%);transform-origin:50% 0;height:16px;transition:transform .18s;bottom:16px;left:6px;right:6px}.letter-list-envelope-motif{z-index:3;opacity:.82;width:19px;height:auto;top:1px;right:1px}.letter-list-envelope[data-open=true] .letter-list-envelope-paper{transform:translateY(-3px)}.letter-list-envelope[data-open=true] .letter-list-envelope-flap{transform:translateY(-6px)scaleY(-.65)}.letter-list-envelope[data-open=true] .letter-list-envelope-motif{opacity:.58}.letter-envelope-button:not(:disabled):hover .letter-envelope-scene,.letter-envelope-button:not(:disabled):focus-visible .letter-envelope-scene{transform:translateY(-3px)}.letter-envelope-scene[data-state=opening]{animation:.84s cubic-bezier(.22,.72,.24,1) both letter-envelope-open}.letter-envelope-scene[data-state=opening] .letter-envelope-flap{animation:.84s cubic-bezier(.3,.68,.2,1) both letter-envelope-flap-open}.letter-envelope-scene[data-state=opening] .letter-envelope-paper{animation:.84s cubic-bezier(.2,.72,.22,1) both letter-envelope-paper-rise}.letter-envelope-scene[data-state=opening] .letter-envelope-seal{animation:.34s ease-out both letter-envelope-seal-release}.letter-envelope-scene[data-state=opening] .letter-envelope-decoration{animation:.84s cubic-bezier(.2,.72,.22,1) both letter-envelope-decoration-lift}@keyframes letter-envelope-open{0%{transform:translateY(0)scale(1)}32%{transform:translateY(-7px)scale(1.015)}to{transform:translateY(-2px)scale(1.01)}}@keyframes letter-envelope-flap-open{0%,18%{transform:rotateX(0)}64%,to{transform:rotateX(178deg)}}@keyframes letter-envelope-paper-rise{0%,42%{transform:translateY(19%)}to{transform:translateY(-63%)}}@keyframes letter-envelope-seal-release{0%{opacity:1;transform:translate(-50%,-50%)scale(1)}to{opacity:0;transform:translate(-50%,-68%)scale(.78)}}@keyframes letter-envelope-decoration-lift{0%,38%{transform:translateY(0)rotate(0)}to{transform:translateY(-9px)rotate(3deg)}}.letter-paper-reader{border:1px solid var(--letter-template-rule);background:linear-gradient(90deg, transparent 0 7%, color-mix(in srgb, var(--letter-template-secondary) 16%, transparent) 7% 7.35%, transparent 7.35%), linear-gradient(var(--letter-template-paper-start), var(--letter-template-paper-end));width:min(100% - 36px,560px);min-height:430px;box-shadow:0 14px 38px color-mix(in srgb, var(--letter-template-primary) 12%, transparent);color:var(--letter-template-ink);border-radius:5px;margin:28px auto 38px;padding:clamp(28px,7vw,48px);animation:.26s ease-out both letter-paper-arrive;position:relative;overflow:hidden}.letter-paper-decoration{z-index:0;width:min(124px,24%);color:var(--letter-template-primary);opacity:.38;pointer-events:none;position:absolute;top:4px;right:4px}.letter-paper-decoration svg{width:100%;height:auto;display:block}.letter-paper-reader[data-template=template_wax_rose] .letter-paper-decoration{opacity:.42;width:min(108px,21%);top:8px;right:5px}.letter-paper-reader[data-template=template_lily_feather] .letter-paper-decoration{opacity:.35;width:min(132px,25%)}.letter-paper-reader[data-template=template_blue_hydrangea] .letter-paper-decoration{opacity:.34;width:min(132px,25%);top:auto;bottom:2px;right:2px}.letter-paper-heading{z-index:1;border-bottom:1px solid var(--letter-template-rule);padding-bottom:20px;position:relative}.letter-paper-heading p{color:var(--letter-template-muted);margin:0;font-size:12px}.letter-paper-heading h3{overflow-wrap:anywhere;letter-spacing:.02em;margin:9px 0 0;font-family:Everletter Serif,Songti SC,serif;font-size:clamp(22px,5vw,29px);font-weight:600}.letter-paper-body{z-index:1;overflow-wrap:anywhere;white-space:pre-wrap;margin-top:25px;font-family:Everletter Serif,Songti SC,serif;font-size:15px;line-height:2;position:relative}@keyframes letter-paper-arrive{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.settings-page{min-height:100dvh;padding:0 20px max(32px, env(safe-area-inset-bottom));background:color-mix(in srgb, hsl(var(--muted)) 34%, hsl(var(--background)))}.settings-shell{width:100%;max-width:720px;margin:0 auto;position:relative}.settings-topbar{min-height:90px;padding:max(14px, env(safe-area-inset-top)) 0 6px;align-items:center;gap:14px;display:flex}.settings-back-button{border-radius:12px;flex-shrink:0;place-items:center;width:44px;height:44px;display:inline-grid}.settings-back-button:hover{background:hsl(var(--muted))}.settings-page-title{text-overflow:ellipsis;white-space:nowrap;font-size:24px;font-weight:700;line-height:1.2;overflow:hidden}.settings-account-name{color:hsl(var(--muted-foreground));text-overflow:ellipsis;white-space:nowrap;margin-top:4px;font-size:13px;overflow:hidden}.settings-groups{gap:28px;padding-top:8px;display:grid}.settings-profile-summary{border:1px solid hsl(var(--border));background:hsl(var(--panel));min-height:78px;box-shadow:0 8px 26px hsl(var(--foreground) / .05);border-radius:20px;align-items:center;gap:13px;padding:13px 15px;transition:border-color .16s,transform .16s;display:flex}.settings-profile-summary:hover{border-color:hsl(var(--accent) / .42)}.settings-profile-summary:active{transform:translateY(1px)}.settings-profile-avatar{border:1px solid hsl(var(--accent) / .3);background:color-mix(in srgb, hsl(var(--accent)) 18%, hsl(var(--panel)));width:48px;height:48px;color:hsl(var(--foreground));border-radius:50%;flex-shrink:0;place-items:center;font-size:15px;font-weight:650;display:grid;position:relative;overflow:hidden}.settings-profile-avatar img{-o-object-fit:cover;object-fit:cover}.settings-profile-copy{flex:1;gap:3px;min-width:0;display:grid}.settings-profile-copy strong{text-overflow:ellipsis;white-space:nowrap;font-size:16px;font-weight:650;overflow:hidden}.settings-profile-copy small{color:hsl(var(--muted-foreground));font-size:12px}.settings-group-title{color:hsl(var(--muted-foreground));margin:0 0 10px 4px;font-size:14px;font-weight:650}.settings-list{border:1px solid hsl(var(--border));background:hsl(var(--panel));border-radius:18px;overflow:hidden}.settings-list-row{border-bottom:1px solid hsl(var(--border));align-items:center;gap:12px;min-height:68px;padding:11px 15px;transition:background-color .16s;display:flex}.settings-list-row:last-child{border-bottom:0}.settings-list-row:hover{background:hsl(var(--muted) / .65)}.settings-row-icon{background:color-mix(in srgb, hsl(var(--accent)) 10%, hsl(var(--muted)));width:36px;height:36px;color:hsl(var(--foreground));border-radius:11px;flex-shrink:0;place-items:center;display:inline-grid}.settings-row-copy{flex:1;min-width:0}.settings-row-label{font-size:15px;font-weight:600;display:block}.settings-row-description{color:hsl(var(--muted-foreground));text-overflow:ellipsis;white-space:nowrap;margin-top:3px;font-size:12px;line-height:1.4;display:block;overflow:hidden}.settings-row-status{color:hsl(var(--muted-foreground));flex-shrink:0;font-size:13px;font-weight:500}.settings-row-chevron{color:hsl(var(--muted-foreground));flex-shrink:0}.settings-detail{border:1px solid 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hsl(var(--border));background:hsl(var(--panel));border-radius:16px;margin-top:12px;overflow:visible}.bubble-role-setting{grid-template-columns:minmax(118px,.55fr) minmax(170px,.9fr) minmax(220px,1.25fr);align-items:start;gap:14px;padding:14px;display:grid;position:relative}.bubble-role-setting+.bubble-role-setting{border-top:1px solid hsl(var(--border))}.bubble-role-identity{align-items:center;gap:10px;min-height:42px;display:flex}.bubble-role-identity strong,.bubble-role-identity small{display:block}.bubble-role-identity strong{color:hsl(var(--foreground));font-size:13px;font-weight:650}.bubble-role-identity small{color:hsl(var(--muted-foreground));margin-top:2px;font-size:11px}.bubble-role-badge{border:1px solid hsl(var(--accent) / .26);background:color-mix(in srgb, hsl(var(--accent)) 13%, hsl(var(--panel)));width:34px;height:34px;color:hsl(var(--foreground));border-radius:50%;flex:0 0 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button{justify-content:center;align-items:center;gap:7px;display:inline-flex}.settings-color-dot{border:1px solid hsl(var(--foreground) / .16);border-radius:50%;flex-shrink:0;width:13px;height:13px}.device-file-name{min-width:0;color:hsl(var(--muted-foreground));text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.settings-color-hint{color:hsl(var(--muted-foreground));margin-top:8px;font-size:12px;display:block}.settings-color-hint[data-warning=true]{color:#9d4254;font-weight:600}:root[data-color-mode=dark] .settings-color-hint[data-warning=true],:root[data-color-mode=amoled] .settings-color-hint[data-warning=true]{color:#f0a7b4}@media (prefers-color-scheme:dark){:root[data-color-mode=system] .settings-color-hint[data-warning=true]{color:#f0a7b4}}.custom-font-summary{border:1px solid hsl(var(--border));background:hsl(var(--muted) / .38);border-radius:12px;justify-content:space-between;align-items:center;gap:10px;min-width:0;margin-top:10px;padding:8px 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-14px;padding-left:14px;padding-right:14px}.conversation-preview{isolation:isolate;gap:var(--preview-message-gap,24px);border:1px solid hsl(var(--border));background:var(--preview-background-color,hsl(var(--background)));border-radius:16px;padding:18px;display:grid;position:relative;overflow:hidden}.conversation-preview:before{z-index:-1;inset:calc(-1 * var(--preview-background-blur,0px));background-image:radial-gradient(circle at 20% 10%, hsl(var(--accent) / .08), transparent 42%), var(--preview-background-image,none);content:"";filter:blur(var(--preview-background-blur,0px));opacity:var(--preview-background-opacity,1);background-position:50%;background-size:cover;position:absolute}.conversation-preview[data-theme-preset=mint-letter]{--letter-preview-line:143 199 154;--letter-preview-shadow:96 115 104}.conversation-preview[data-theme-preset=moonlight-letter]{--letter-preview-line:145 164 207;--letter-preview-shadow:86 102 137}.conversation-preview[data-theme-preset=sakura-mist-letter]{--letter-preview-line:220 166 176;--letter-preview-shadow:128 88 95}.conversation-preview[data-theme-preset=cloud-gray-letter]{--letter-preview-line:168 168 168;--letter-preview-shadow:65 65 65}.conversation-preview:is([data-theme-preset=mint-letter],[data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]):before{background-image:radial-gradient(circle at 50% 48%, rgb(var(--letter-preview-line) / .28), transparent 46%), var(--preview-background-image,none)}.conversation-preview-theme-mark{z-index:0;width:min(118px,42%);height:auto;color:rgb(var(--letter-preview-line));opacity:.38;pointer-events:none;position:absolute;top:50%;left:50%;transform:translate(-50%,-48%)}.conversation-preview:is([data-theme-preset=mint-letter],[data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .conversation-preview-row{z-index:1;position:relative}.conversation-preview:is([data-theme-preset=mint-letter],[data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .conversation-preview-bubble,.conversation-preview:is([data-theme-preset=mint-letter],[data-theme-preset=moonlight-letter],[data-theme-preset=sakura-mist-letter],[data-theme-preset=cloud-gray-letter]) .conversation-preview-user{border-color:rgb(var(--letter-preview-line) / .56);box-shadow:0 4px 16px rgb(var(--letter-preview-shadow) / .035)}.conversation-preview-row{align-items:flex-start;gap:8px;display:flex}.conversation-preview-avatar{background:hsl(var(--accent));width:30px;height:30px;color:hsl(var(--accent-foreground));border-radius:50%;flex-shrink:0;place-items:center;font-size:10px;font-weight:700;display:grid}.conversation-preview-bubble,.conversation-preview-user,.conversation-preview-plain{gap:7px;max-width:290px;padding:9px 12px;font-size:12px;line-height:1.55;display:grid}.conversation-preview-bubble{border:1px solid hsl(var(--border));border-radius:var(--preview-bubble-radius,14px) var(--preview-bubble-radius,14px) var(--preview-bubble-radius,14px) max(4px, calc(var(--preview-bubble-radius,14px) / 3));background:var(--preview-assistant-color,hsl(var(--panel)));color:var(--preview-assistant-text,hsl(var(--foreground)))}.conversation-preview-plain{color:var(--preview-assistant-text,hsl(var(--foreground)));padding-left:2px;padding-right:2px}.conversation-preview-user{border:1px solid hsl(var(--accent) / .24);border-radius:var(--preview-bubble-radius,14px) var(--preview-bubble-radius,14px) max(4px, calc(var(--preview-bubble-radius,14px) / 3)) var(--preview-bubble-radius,14px);background:var(--preview-user-color,hsl(var(--accent)));background:color-mix(in srgb, var(--preview-user-color,hsl(var(--accent))) var(--preview-user-strength,14%), hsl(var(--panel)));color:var(--preview-user-text,hsl(var(--accent-foreground)))}.conversation-preview[data-assistant-bubble-style=jelly] .conversation-preview-bubble,.conversation-preview[data-user-bubble-style=jelly] .conversation-preview-user{border-color:var(--bubble-material-edge);box-shadow:inset 0 1px 0 var(--bubble-material-highlight), 0 7px 18px hsl(var(--accent) / .1);-webkit-backdrop-filter:blur(5px)saturate(1.2);backdrop-filter:blur(5px)saturate(1.2)}.conversation-preview[data-assistant-bubble-style=jelly] .conversation-preview-bubble{background:linear-gradient(180deg, var(--bubble-material-jelly-glint) 0, transparent 7px), color-mix(in srgb, var(--preview-assistant-color,hsl(var(--panel))) 76%, hsl(var(--accent) / .22))}.conversation-preview[data-user-bubble-style=jelly] .conversation-preview-user{background:linear-gradient(180deg, var(--bubble-material-jelly-glint) 0, transparent 7px), color-mix(in srgb, var(--preview-user-color,hsl(var(--accent))) 72%, hsl(var(--panel) / 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