@font-face{font-family:Xiaoyu system;src:local("MiSans"),local("HarmonyOS Sans SC"),local("Noto Sans CJK SC"),local("Microsoft YaHei");font-display:swap}:root{font-family:Xiaoyu system,PingFang SC,system-ui,sans-serif;color:var(--ink);background:#e7efef;color-scheme:light dark;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--canvas: #f3f8f8;--paper: #fff;--ink: #193b40;--muted: #61797b;--line: #dce7e7;--accent: #247c78;--accent-hover: #1c6966;--self: #dcefea;--subtle: #eaf2f2;--danger: #a54741;--danger-bg: #fceeea;--shadow: 0 12px 50px #183f3d0c}*{box-sizing:border-box}html,body,#app{width:100%;height:100%;margin:0}body{overflow:hidden}button,input,textarea{font:inherit}button{cursor:pointer;-webkit-tap-highlight-color:transparent}button,input,textarea{outline-offset:4px}button:focus-visible,input:focus-visible,textarea:focus-visible,a:focus-visible{outline:3px solid #6baea8}button:disabled{cursor:default}button svg{width:21px;height:21px;flex:none}[hidden]{display:none!important}.app-shell{width:min(100%,760px);height:100%;height:100dvh;max-height:var(--viewport-height, 100dvh);margin:auto;background:var(--canvas);display:flex;flex-direction:column;overflow:hidden;box-shadow:var(--shadow)}.app-header{display:flex;align-items:center;gap:12px;flex:0 0 auto;padding:calc(15px + env(safe-area-inset-top)) 20px 15px;background:var(--paper);border-bottom:1px solid var(--line)}.avatar{width:45px;height:45px;object-fit:cover;object-position:50% 25%;border-radius:50%;background:var(--subtle)}.identity{flex:1;min-width:0}.identity h1{margin:0 0 4px;font-size:18px;line-height:1.2;font-weight:650}.status{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:12px;line-height:1.35}.status-dot{width:6px;height:6px;border-radius:50%;background:#a3b3b4;flex:none}.status[data-ready=true] .status-dot{background:#3d9e7e}.icon-button{width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;color:var(--muted);background:transparent}.icon-button:hover{background:var(--subtle);color:var(--ink)}.header-actions{display:flex;gap:2px}.connection-banner{margin:0;padding:10px 20px;background:var(--subtle);color:var(--muted);font-size:12px;line-height:1.6;flex:none}.notice{padding:10px 14px 10px 20px;display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--line);background:var(--paper);color:var(--muted);font-size:13px;line-height:1.6}.notice span{flex:1}.notice .icon-button{width:28px;height:28px}.chat-area{position:relative;min-height:0;flex:1;display:flex;flex-direction:column}.timeline{min-height:0;flex:1;overflow-y:auto;overscroll-behavior:contain;padding:16px 20px 22px;scrollbar-width:thin;scrollbar-color:var(--line) transparent}.history-action{display:block;padding:8px 16px;min-height:40px;margin:0 auto 14px;border:0;color:var(--muted);background:transparent;border-radius:20px;font-size:12px}.history-action:hover{background:var(--subtle)}.empty-state{min-height:230px;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:32px 24px;text-align:center;color:var(--muted)}.empty-state img{width:76px;height:76px;border-radius:26px;margin-bottom:15px}.empty-state h2{color:var(--ink);font-size:18px;font-weight:600;margin:0 0 8px}.empty-state p{max-width:25em;font-size:13px;line-height:1.8;margin:0}.date-label{text-align:center;color:var(--muted);font-size:11px;line-height:1.6;padding:8px 0 18px}.message{display:flex;align-items:flex-end;gap:9px;margin:0 0 18px}.message.self{justify-content:flex-end}.message-avatar{width:28px;height:28px;border-radius:50%;object-fit:cover;object-position:50% 25%;align-self:flex-start;margin-top:4px}.message-content{display:flex;flex-direction:column;align-items:flex-start;max-width:min(86%,34em);min-width:0}.message.self .message-content{align-items:flex-end}.bubble{margin:0;padding:11px 14px;border-radius:4px 17px 17px;background:var(--paper);color:var(--ink);white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;font-size:15px;line-height:1.8;text-align:start}.self .bubble{border-radius:17px 4px 17px 17px;background:var(--self)}.message-meta{display:flex;gap:7px;flex-wrap:wrap;justify-content:flex-end;align-items:center;color:var(--muted);font-size:10px;line-height:1.8;padding:4px 3px 0}.meta-warning{color:var(--danger)}.copy-action{color:var(--accent);border:0;background:transparent;padding:2px 0;font-size:11px;text-decoration:underline;text-underline-offset:3px}.system-message{color:var(--muted);text-align:center;font-size:12px;line-height:1.7;margin:12px auto 18px;max-width:32em;overflow-wrap:anywhere}.jump-latest{position:absolute;bottom:14px;left:50%;transform:translate(-50%);border:1px solid var(--line);box-shadow:0 3px 12px #193b4012;background:var(--paper);color:var(--accent);font-size:12px;border-radius:22px;padding:9px 16px;white-space:nowrap}.composer{flex:none;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:var(--paper);border-top:1px solid var(--line)}.composer form{display:flex;align-items:flex-end;gap:10px}.composer-field{flex:1;min-width:0;display:flex;align-items:flex-end;background:var(--canvas);border:1px solid var(--line);border-radius:17px;padding:0 12px}.composer textarea{width:100%;resize:none;border:0;background:transparent;color:var(--ink);font-size:15px;line-height:1.6;min-height:46px;max-height:145px;padding:11px 0;overflow-y:auto}.composer textarea:focus-visible{outline:none}.composer-field:focus-within{border-color:var(--accent);box-shadow:0 0 0 2px #247c7812}.composer textarea::placeholder{color:var(--muted);opacity:.8}.send-button{height:46px;width:46px;border:0;border-radius:15px;display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;flex:none}.send-button:hover:not(:disabled){background:var(--accent-hover)}.send-button:disabled{background:var(--subtle);color:#9bb1b1}.composer-note{min-height:18px;margin:5px 1px 0;color:var(--muted);font-size:10px;display:flex;justify-content:space-between;gap:16px;line-height:1.6}.login-view{padding:calc(30px + env(safe-area-inset-top)) 30px calc(30px + env(safe-area-inset-bottom));min-height:0;overflow-y:auto;display:flex;flex:1;align-items:center;justify-content:center}.login-inner{width:100%;max-width:330px;padding:28px 0}.login-portrait{display:block;width:104px;height:104px;object-fit:cover;object-position:50% 25%;border-radius:36px;margin-bottom:28px;box-shadow:0 6px 18px #193b4010}.login-inner h1{font-size:30px;font-weight:650;margin:0 0 9px;letter-spacing:-.5px}.login-description{margin:0 0 34px;color:var(--muted);font-size:14px;line-height:1.8}.login-form label{display:block;font-size:13px;margin-bottom:9px;font-weight:550}.login-form input{display:block;width:100%;min-height:48px;border:1px solid var(--line);border-radius:13px;padding:11px 13px;color:var(--ink);background:var(--paper);font-size:16px}.login-form input::placeholder{color:var(--muted);opacity:.7}.primary-button{width:100%;min-height:48px;border:0;border-radius:13px;background:var(--accent);color:#fff;font-weight:550;font-size:14px;padding:13px}.primary-button:hover:not(:disabled){background:var(--accent-hover)}.primary-button:disabled{opacity:.6}.login-form .primary-button{margin-top:18px}.login-error{color:var(--danger);font-size:12px;min-height:19px;line-height:1.6;margin:10px 0 0}.login-footnote{margin:30px 0 0;color:var(--muted);font-size:11px;line-height:1.8}.loading-screen{flex:1;display:flex;justify-content:center;align-items:center;color:var(--muted);gap:10px;font-size:13px}.loading-screen img{width:26px;height:26px;border-radius:8px}.settings-dialog{width:min(calc(100% - 32px),380px);max-height:calc(100dvh - 48px);border:1px solid var(--line);border-radius:23px;padding:23px;background:var(--paper);color:var(--ink);box-shadow:0 20px 70px #12353630}.settings-dialog::backdrop{background:#193b404f;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.dialog-header{display:flex;align-items:center;margin-bottom:16px}.dialog-header h2{font-size:18px;margin:0;flex:1;font-weight:600}.dialog-header .icon-button{width:32px;height:32px}.setting-status{display:grid;grid-template-columns:1fr auto;gap:13px;font-size:13px;margin:0 0 24px}.setting-status dt{color:var(--muted)}.setting-status dd{margin:0}.settings-dialog p{font-size:12px;line-height:1.8;color:var(--muted)}.secondary-button{width:100%;min-height:44px;padding:10px 14px;border:1px solid var(--line);border-radius:12px;background:transparent;color:var(--ink);font-size:13px;margin-top:10px}.secondary-button:hover{background:var(--subtle)}.logout-button{color:var(--danger)}@media(min-width:761px){.app-shell{border-left:1px solid var(--line);border-right:1px solid var(--line)}.timeline{padding-left:32px;padding-right:32px}.composer,.app-header{padding-left:28px;padding-right:28px}}@media(max-width:360px){.app-header{padding-left:14px;padding-right:12px}.timeline{padding-left:12px;padding-right:12px}.composer{padding-left:10px;padding-right:10px}.message-content{max-width:88%}}@media(prefers-color-scheme:dark){:root{background:#14282c;--canvas: #172e33;--paper: #203a40;--ink: #e0eded;--muted: #9db5b7;--line: #2d494f;--accent: #75bfb3;--accent-hover: #8acdbf;--self: #2c514e;--subtle: #284249;--danger: #f0a49d;--danger-bg: #482f30;--shadow: none}.primary-button,.send-button{color:#143a35}.status[data-ready=true] .status-dot{background:#80cbb3}}@media(prefers-reduced-motion:no-preference){button{transition:background-color .15s,color .15s}}