:root{--page:#f2f3f5;--surface:#ffffff;--ink:#0b0b0d;--muted:#9a9da3;--line:#eeeeef;--assistant:#f5f5f6;--blue:#0a91ff;--blue-dark:#0378e8;--chip:#ffffff;--shadow:0 22px 80px rgba(16,24,40,0.16)}*{box-sizing:border-box}body,html{min-height:100%}body{margin:0;background:var(--page);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Segoe UI,sans-serif;overflow-x:hidden}button,textarea{font:inherit}button{-webkit-tap-highlight-color:transparent;cursor:pointer}button:disabled{cursor:not-allowed}.sr-only{border:0;clip:rect(0,0,0,0);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;white-space:nowrap;width:1px}.app-frame{display:grid;min-height:100dvh;place-items:center;padding:20px}.phone-shell{display:grid;grid-template-rows:auto auto minmax(0,1fr) auto;width:min(100%,430px);max-width:100vw;height:min(920px,calc(100dvh - 40px));overflow:hidden;border:1px solid rgba(0,0,0,.06);border-radius:34px;background:var(--surface);box-shadow:var(--shadow)}.chat-header{display:grid;grid-template-columns:48px minmax(0,1fr) 48px;align-items:center;min-height:76px;padding:10px 15px 9px;border-bottom:1px solid rgba(0,0,0,.06);box-shadow:0 7px 18px rgba(0,0,0,.045)}.chat-title{display:grid;justify-items:center;grid-gap:3px;gap:3px;min-width:0}.chat-title strong{color:#121214;font-size:1.08rem;font-weight:760;line-height:1.15}.chat-title span,.chat-title strong{overflow:hidden;max-width:100%;text-overflow:ellipsis;white-space:nowrap}.chat-title span{color:#aaaeb5;font-size:.8rem;line-height:1.2}.icon-button{display:inline-grid;place-items:center;width:44px;height:44px;border:0;border-radius:50%;background:transparent;color:#0b0b0d}.icon-button:disabled{opacity:.35}.icon-button.ghost:hover,.icon-button.send-button:hover{background:#f2f4f7}.conversation-meta{display:grid;justify-items:center;padding:18px 20px 13px;color:#a8abb1}.conversation-meta strong{font-size:1rem;font-weight:520}.message-list{display:flex;flex-direction:column;gap:14px;min-height:0;overflow:auto;padding:0 13px 18px;overflow-x:hidden;scrollbar-width:none}.message-list::-webkit-scrollbar{display:none}.message{max-width:96%;border-radius:18px;font-size:1.02rem;line-height:1.65}.message,.message p{min-width:0;overflow-wrap:anywhere;word-break:break-word}.message p{margin:0}.message.assistant{align-self:flex-start;width:100%;max-width:100%;padding:18px 15px 16px;background:var(--assistant);color:#131416}.message.user{align-self:flex-end;max-width:82%;padding:12px 15px;border-radius:17px;background:linear-gradient(180deg,var(--blue),var(--blue-dark));color:#fff;font-size:1rem;line-height:1.55}.assistant-cta{justify-content:center;gap:8px;width:100%;min-height:52px;border:0;border-radius:11px;background:#fff;color:#121214;font-size:1.02rem;font-weight:760;box-shadow:0 8px 18px rgba(17,24,39,.035)}.assistant-cta,.message-tools{display:flex;align-items:center;margin-top:14px}.message-tools{gap:10px;padding-top:13px;border-top:1px solid rgba(0,0,0,.05)}.message-tools button{display:inline-grid;place-items:center;width:38px;height:38px;border:0;border-radius:12px;background:#edf5ff;color:#1687ef}.call-error{align-self:flex-start;max-width:96%;margin:0;padding:12px 14px;border-radius:16px;background:#fff2f2;color:#b42318;font-size:.92rem;line-height:1.45}.bottom-dock{display:grid;grid-gap:12px;gap:12px;padding:10px 12px 16px;background:rgba(255,255,255,.96);box-shadow:0 -10px 24px rgba(15,23,42,.05)}.quick-actions{display:flex;gap:9px;overflow-x:auto;padding:0 0 2px;scrollbar-width:none}.quick-actions::-webkit-scrollbar{display:none}.quick-actions button{display:inline-flex;flex:0 0 auto;align-items:center;justify-content:center;gap:6px;min-height:40px;padding:0 13px;border:1px solid #e5e7eb;border-radius:10px;background:var(--chip);color:#121214;font-size:.94rem;font-weight:650;white-space:nowrap}.composer{display:grid;grid-template-columns:minmax(0,1fr) 44px;align-items:center;grid-gap:8px;gap:8px;min-height:58px;padding:7px 9px 7px 16px;border-radius:18px;background:#fff;box-shadow:0 11px 30px rgba(15,23,42,.12),0 0 0 1px rgba(0,0,0,.04)}.composer textarea{width:100%;min-height:32px;max-height:86px;resize:none;border:0;outline:none;background:transparent;color:#141517;font-size:1rem;line-height:1.5;padding:5px 0}.composer textarea::placeholder{color:#a4a7ad}.composer .send-button{background:#101114;color:#fff}.composer .send-button:disabled{background:transparent;color:#0b0b0d;opacity:1}audio{display:none}@media (max-width:520px){.app-frame{display:block;padding:0}.phone-shell{width:100%;height:100dvh;border:0;border-radius:0;box-shadow:none}.chat-header{padding-inline:12px}}@media (max-width:360px){.chat-header{grid-template-columns:42px minmax(0,1fr) 42px}.icon-button{width:40px;height:40px}.composer{grid-template-columns:minmax(0,1fr) 40px}}