:root{color-scheme:light dark;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Roboto,sans-serif;font-size:15px;--frame-bg: #dae5cf;--chat-bg: #e4eeda;--chat-pattern: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240' viewBox='0 0 240 240'><g fill='%23ffffff' opacity='0.4'><circle cx='20' cy='30' r='3'/><circle cx='60' cy='15' r='1.5'/><circle cx='100' cy='40' r='2.2'/><circle cx='155' cy='20' r='2.8'/><circle cx='195' cy='55' r='1.6'/><circle cx='225' cy='25' r='2.2'/><circle cx='30' cy='80' r='2'/><circle cx='75' cy='95' r='3'/><circle cx='120' cy='75' r='1.4'/><circle cx='170' cy='105' r='2.4'/><circle cx='210' cy='85' r='1.6'/><circle cx='25' cy='140' r='2.6'/><circle cx='70' cy='155' r='1.4'/><circle cx='115' cy='135' r='2.8'/><circle cx='165' cy='170' r='1.8'/><circle cx='210' cy='145' r='3'/><circle cx='40' cy='200' r='1.8'/><circle cx='95' cy='215' r='2.6'/><circle cx='150' cy='205' r='1.4'/><circle cx='200' cy='225' r='2.2'/></g><g stroke='%23ffffff' stroke-width='1.3' stroke-linecap='round' opacity='0.35' fill='none'><path d='M45 55 L45 65 M40 60 L50 60'/><path d='M135 110 L135 120 M130 115 L140 115'/><path d='M185 170 L185 180 M180 175 L190 175'/><path d='M80 180 L80 188 M76 184 L84 184'/></g></svg>");--header-bg: #ffffff;--header-border: rgba(0, 0, 0, .08);--composer-bg: #ffffff;--composer-border: rgba(0, 0, 0, .08);--input-bg: #f4f4f5;--bubble-peer: #ffffff;--bubble-peer-text: #0f1419;--bubble-own: #effdde;--bubble-own-text: #0f1419;--bubble-shadow: 0 1px 2px rgba(16, 35, 47, .15);--text: #0f1419;--text-soft: #707579;--text-muted: #a2acb4;--accent: #168acd;--accent-strong: #1371a8;--accent-soft: rgba(22, 138, 205, .12);--divider: rgba(0, 0, 0, .06);--danger: #e53935;--success: #4fae4e;--radius-bubble: 14px}@media(prefers-color-scheme:dark){:root{--frame-bg: #0a1118;--chat-bg: #0e1621;--chat-pattern: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240' viewBox='0 0 240 240'><g fill='%23ffffff' opacity='0.05'><circle cx='20' cy='30' r='3.2'/><circle cx='60' cy='15' r='1.6'/><circle cx='100' cy='40' r='2.4'/><circle cx='155' cy='20' r='3'/><circle cx='195' cy='55' r='1.8'/><circle cx='225' cy='25' r='2.4'/><circle cx='30' cy='80' r='2.2'/><circle cx='75' cy='95' r='3.4'/><circle cx='120' cy='75' r='1.6'/><circle cx='170' cy='105' r='2.6'/><circle cx='210' cy='85' r='1.8'/><circle cx='25' cy='140' r='2.8'/><circle cx='70' cy='155' r='1.6'/><circle cx='115' cy='135' r='3'/><circle cx='165' cy='170' r='2'/><circle cx='210' cy='145' r='3.2'/><circle cx='40' cy='200' r='2'/><circle cx='95' cy='215' r='2.8'/><circle cx='150' cy='205' r='1.6'/><circle cx='200' cy='225' r='2.4'/></g></svg>");--header-bg: #17212b;--header-border: rgba(255, 255, 255, .06);--composer-bg: #17212b;--composer-border: rgba(255, 255, 255, .06);--input-bg: #242f3d;--bubble-peer: #182533;--bubble-peer-text: #e6ebf0;--bubble-own: #2b5278;--bubble-own-text: #ffffff;--bubble-shadow: 0 1px 2px rgba(0, 0, 0, .25);--text: #e6ebf0;--text-soft: #8e9ba7;--text-muted: #5a6773;--accent: #6ab3f3;--accent-strong: #93c5fd;--accent-soft: rgba(106, 179, 243, .16);--divider: rgba(255, 255, 255, .06);--success: #6abf69}}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#app{margin:0;overflow:hidden;overscroll-behavior:none;touch-action:manipulation}body{background:var(--frame-bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button,textarea,input{font:inherit;color:inherit;border:0;outline:0;background:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed}.app-shell{position:fixed;top:var(--app-top, 0px);left:0;width:100%;height:var(--app-height, 100vh);height:var(--app-height, 100dvh);display:flex;flex-direction:column;background:var(--frame-bg);overflow:hidden}.chat-layout{flex:1;display:flex;flex-direction:column;min-height:0;width:100%;max-width:960px;margin:0 auto;background:var(--chat-bg);box-shadow:0 0 40px #0000000f}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:8px 16px;min-height:56px;background:var(--header-bg);border-bottom:1px solid var(--header-border);flex-shrink:0;z-index:10}.chat-brand{display:flex;align-items:center;gap:12px;min-width:0}.chat-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#72d5fd,#2a9ef1);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:16px;flex-shrink:0;-webkit-user-select:none;user-select:none}.chat-meta{display:flex;flex-direction:column;min-width:0;line-height:1.2}.chat-meta h1{margin:0;font-size:15px;font-weight:600;color:var(--text);letter-spacing:-.1px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-meta-status{font-size:12px;color:var(--text-soft);margin-top:2px}.chat-meta-status.is-active{color:var(--accent)}.chat-header-tools{display:flex;gap:2px}.tool-button{font-size:13px;padding:6px 10px;border-radius:6px;color:var(--text-soft);transition:background .15s ease,color .15s ease}.tool-button:hover{background:var(--accent-soft);color:var(--text)}.hidden{display:none!important}@media(max-width:600px){.chat-header{padding:6px 12px;min-height:48px}.chat-avatar{width:34px;height:34px;font-size:14px}}.messages{flex:1;display:flex;flex-direction:column;gap:2px;padding:12px 8px;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;scroll-behavior:smooth;background-color:var(--chat-bg);background-image:var(--chat-pattern);background-size:240px 240px;background-repeat:repeat;-webkit-user-select:none;user-select:none}.messages::-webkit-scrollbar{width:6px}.messages::-webkit-scrollbar-thumb{background:#00000026;border-radius:3px}.day-separator{align-self:center;font-size:12px;color:#fffffff2;background:#00000059;padding:3px 10px;border-radius:12px;margin:8px 0 4px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}@media(prefers-color-scheme:dark){.day-separator{background:#0006;color:#dfe5ea}}.message-row{display:flex;width:100%;margin-top:10px;padding:0 8px;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}.message-row.grouped{margin-top:2px}.message-row.user{justify-content:flex-end}.message-row.selected .bubble{outline:2px solid rgba(36,148,255,.35)}.bubble{max-width:min(72%,520px);padding:6px 32px 7px 10px;border-radius:var(--radius-bubble);position:relative;line-height:1.4;word-break:break-word;font-size:15px;box-shadow:var(--bubble-shadow);-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}.message-select-marker{width:20px;height:20px;margin-right:10px;margin-top:12px;border-radius:50%;border:2px solid rgba(255,255,255,.9);background:transparent;align-self:flex-start}.message-select-marker.selected{background:var(--accent);border-color:var(--accent)}.bubble.assistant{background:var(--bubble-peer);color:var(--bubble-peer-text);border-bottom-left-radius:4px}.bubble.user{background:var(--bubble-own);color:var(--bubble-own-text);border-bottom-right-radius:4px}.message-row.grouped .bubble.assistant{border-bottom-left-radius:var(--radius-bubble);border-top-left-radius:4px}.message-row.grouped .bubble.user{border-bottom-right-radius:var(--radius-bubble);border-top-right-radius:4px}.bubble-time{display:inline-block;float:right;margin:6px 0 -4px 8px;font-size:11px;color:var(--text-muted);line-height:1;font-variant-numeric:tabular-nums}.bubble.user .bubble-time{color:var(--success)}.message-quote{margin:0 16px 6px 0;padding:4px 8px;border-left:2px solid var(--accent);border-radius:8px;background:#0000000a}.message-quote-title{margin:0;font-size:12px;color:var(--accent);font-weight:600}.message-quote-text{margin:1px 0 0;font-size:12px;color:var(--text-soft);line-height:1.35;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(prefers-color-scheme:dark){.bubble.user .bubble-time{color:#fff9}}.message-text{margin:0;white-space:pre-wrap;word-break:break-word;line-height:1.4;font-size:15px}.rich-message{display:flex;flex-direction:column}.rich-message p{margin:0;line-height:1.4;white-space:pre-wrap;word-break:break-word}.rich-message p+p{margin-top:2px}.message-section-title{margin-top:10px!important;font-weight:600}.message-section-title:first-child{margin-top:0!important}.rich-message strong{font-weight:600}.rich-message em{font-style:italic}.rich-message code{padding:1px 5px;border-radius:4px;background:#0000000f;font-family:SF Mono,ui-monospace,Menlo,monospace;font-size:.9em}.bubble.user .rich-message code{background:#00000014}.rich-message a{color:var(--accent);text-decoration:none}.rich-message a:hover{text-decoration:underline}.rich-message .rich-image{display:block;max-width:100%;max-height:320px;margin:4px 0 2px;border-radius:10px;object-fit:cover}.message-command{color:var(--accent);font:inherit;padding:0;margin:0;background:none;text-decoration:none;cursor:pointer;line-height:inherit;border-radius:2px;transition:opacity .1s ease}.message-command:hover{text-decoration:underline}.message-command:active{opacity:.7}.bubble.user .message-command{color:var(--accent);text-decoration:none}.bubble.user .message-command:hover{text-decoration:underline}.bill-card{display:flex;flex-direction:column;gap:6px;min-width:220px}.bill-card h3{margin:0 0 2px;font-size:15px;font-weight:600;color:inherit}.bill-lines{display:flex;flex-direction:column;gap:2px}.bill-summary{display:flex;flex-direction:column;gap:2px;padding-top:6px;margin-top:4px;border-top:1px solid var(--divider)}.bill-line{display:flex;justify-content:space-between;gap:12px;padding:2px 0;font-size:14px;line-height:1.4}.bill-line span:first-child{color:inherit;flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bill-summary p{margin:0;line-height:1.5;font-size:13px;color:var(--text-soft)}.bill-summary p strong{font-weight:600;color:inherit;font-variant-numeric:tabular-nums}.bill-empty{color:var(--text-muted);font-size:13px;margin:0}.bill-list-row{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;padding:2px 0;font-size:14px}.bill-list-row .message-command{min-width:40px}.bill-val{font-variant-numeric:tabular-nums;font-size:13px;color:var(--text-soft)}.bill-val.expense{color:var(--danger)}.bill-val.income{color:var(--success)}.bubble-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px;padding-top:6px;border-top:1px solid var(--divider)}.action-chip{color:var(--accent);background:transparent;font-size:14px;padding:0;transition:opacity .15s ease}.action-chip:hover{text-decoration:underline}.action-chip:active{opacity:.65}.action-chip.ghost{color:var(--text-soft)}.action-chip.danger{color:var(--danger)}.typing{align-self:flex-start;display:inline-flex;gap:4px;padding:12px 14px;margin-top:6px;margin-left:8px;background:var(--bubble-peer);border-radius:var(--radius-bubble);border-bottom-left-radius:4px;box-shadow:var(--bubble-shadow)}.typing span{width:6px;height:6px;border-radius:50%;background:var(--text-muted);animation:typing 1.3s ease-in-out infinite}.typing span:nth-child(2){animation-delay:.15s}.typing span:nth-child(3){animation-delay:.3s}@keyframes typing{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-3px);opacity:1}}.composer{flex-shrink:0;padding:8px 14px;padding-bottom:calc(8px + env(safe-area-inset-bottom,0px));background:var(--composer-bg);border-top:1px solid var(--composer-border)}.reply-preview{display:flex;align-items:flex-start;gap:10px;margin-bottom:8px;padding:8px 10px;border-radius:10px;background:var(--input-bg);border-left:3px solid var(--accent)}.reply-preview-body{flex:1;min-width:0}.reply-preview-title{margin:0;font-size:12px;color:var(--accent);font-weight:600}.reply-preview-text{margin:2px 0 0;font-size:12px;color:var(--text-soft);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reply-preview-cancel{flex-shrink:0;color:var(--text-soft);font-size:16px;line-height:1;padding:2px}.composer-shell{display:flex;align-items:flex-end;gap:6px}.image-button{flex-shrink:0;width:40px;height:40px;border-radius:50%;font-size:22px;font-weight:300;display:flex;align-items:center;justify-content:center;color:var(--text-soft);transition:background .15s ease,color .15s ease}.image-button:hover{background:var(--accent-soft);color:var(--accent)}.composer textarea{flex:1;width:100%;padding:10px 14px;resize:none;color:var(--text);line-height:1.4;font-size:16px;min-height:40px;max-height:180px;background:var(--input-bg);border-radius:20px}.composer textarea::placeholder{color:var(--text-muted)}.send-button{flex-shrink:0;width:40px;height:40px;border-radius:50%;font-size:18px;color:#fff;background:var(--accent);display:flex;align-items:center;justify-content:center;transition:background .15s ease,opacity .15s ease,transform .1s ease}.send-button:hover:not(:disabled){background:var(--accent-strong)}.send-button:active:not(:disabled){transform:scale(.94)}.send-button:disabled,[data-busy=true] .send-button{opacity:.5}.empty-state{margin:auto;padding:40px 20px;text-align:center;color:var(--text-soft);background:#fff9;border-radius:14px;max-width:320px;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}@media(prefers-color-scheme:dark){.empty-state{background:#0003}}.empty-hint{margin:6px 0;font-size:14px;line-height:1.5}.login-panel{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;padding:20px;background:var(--chat-bg);z-index:100}.login-card{width:min(360px,calc(100vw - 40px));padding:28px 22px;border-radius:14px;background:var(--header-bg);box-shadow:0 4px 24px #0000001f;display:flex;flex-direction:column;gap:12px}.login-card h2{margin:0;font-size:18px;font-weight:600;color:var(--text)}.login-card p{margin:0;color:var(--text-soft);line-height:1.6;font-size:14px}.login-card input{width:100%;padding:11px 14px;border-radius:10px;background:var(--input-bg);color:var(--text);font-size:15px;transition:box-shadow .15s ease}.login-card input:focus{box-shadow:0 0 0 2px var(--accent-soft)}.login-card input::placeholder{color:var(--text-muted)}.login-submit{width:100%;height:44px;border-radius:22px;font-size:15px;font-weight:500}.error-text{min-height:18px;font-size:13px;color:var(--danger);margin:0}.message-menu{position:fixed;z-index:60;width:180px;border-radius:12px;background:var(--header-bg);box-shadow:0 8px 32px #0000002e;padding:6px}.message-menu-item{width:100%;display:block;text-align:left;padding:10px 12px;border-radius:8px;color:var(--text);font-size:14px}.message-menu-item:hover{background:var(--input-bg)}.message-menu-item.danger{color:var(--danger)}.selection-bar{position:fixed;left:50%;bottom:calc(14px + env(safe-area-inset-bottom,0px));transform:translate(-50%);z-index:55;min-width:280px;max-width:calc(100vw - 24px);border-radius:16px;background:var(--header-bg);box-shadow:0 10px 28px #0003;padding:10px 14px;display:flex;align-items:center;justify-content:space-between;gap:12px}.selection-count{margin:0;font-size:14px;color:var(--text)}.selection-actions{display:flex;gap:12px;align-items:center}@media(max-width:600px){.messages{padding:8px 4px}.message-row{padding:0 4px;margin-top:6px}.bubble{max-width:85%}.composer{padding:6px 10px;padding-bottom:calc(6px + env(safe-area-inset-bottom,0px))}.image-button,.send-button{width:36px;height:36px}.composer textarea{min-height:36px;padding:8px 12px}}.comment-card{display:flex;flex-direction:column;min-width:min(100%,280px)}.comment-card-tag{font-size:14px;font-weight:600;color:var(--bubble-peer-text);margin-bottom:8px;display:block}.comment-post-title{margin:4px 0 10px;font-size:15px;font-weight:600;color:var(--text);letter-spacing:-.2px}.comment-author-info{font-size:14px;color:var(--text);margin-bottom:6px}.comment-site-info{display:flex;align-items:center;gap:4px;font-size:14px;margin-bottom:14px}.comment-site-info a{color:var(--accent);text-decoration:none}.comment-content-quote{display:flex;gap:10px;margin:8px 0;padding:4px 0}.comment-quote-line{width:3px;background:linear-gradient(to bottom,#ff9a9e,#fecfef);border-radius:2px;flex-shrink:0}.comment-quote-body{font-size:14px;line-height:1.5;color:var(--text)}.comment-quote-text{position:relative;font-style:normal}.bubble-actions.no-border{border-top:none;margin-top:4px;padding-top:0}