:root{color:#101828;background:#e9e6df;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif;font-synthesis:none;text-rendering:geometricPrecision}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,input,textarea{font:inherit}button{-webkit-tap-highlight-color:transparent}.app-shell{min-height:100vh;display:grid;place-items:center;padding:0;background:radial-gradient(circle at 20% 12%,rgba(255,255,255,.78),transparent 26%),linear-gradient(145deg,#e4e1da,#f6f4ee 48%,#d6d2cb)}.phone-frame{width:min(430px,100%);height:min(860px,100vh);min-height:min(680px,100vh);padding:0;border-radius:28px;background:transparent;box-shadow:0 22px 60px #11182729}.phone-screen{position:relative;height:100%;overflow:hidden;border-radius:28px;background:#f6f8fc;display:grid;grid-template-rows:102px minmax(0,1fr) 82px}.topbar{position:relative;z-index:3;display:grid;grid-template-columns:34px minmax(0,1fr);align-items:center;gap:12px;padding:10px 150px 10px 18px;border-bottom:1px solid #e6ebf2;background:#ffffffe6;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.nav-button{width:34px;height:34px;display:inline-grid;place-items:center;border:0;border-radius:9px;color:#4b5e7a;background:#f0f3f9;cursor:pointer}.title-block{min-width:0}.title-row{display:flex;align-items:center;gap:8px;min-width:0;flex-wrap:nowrap}h1{margin:0;color:#111827;font-size:17px;line-height:1.12;font-weight:900;white-space:nowrap}.title-block p{margin:4px 0 0;color:#8a96aa;font-size:12px;line-height:1.1}.online-pill{display:inline-flex;align-items:center;gap:4px;height:20px;padding:0 7px;border-radius:999px;color:#009f5a;background:#dcfce7;font-size:11px;font-weight:800;white-space:nowrap}.online-pill i{width:6px;height:6px;border-radius:999px;background:#13b66b}.chat-scroll{position:relative;min-height:0;overflow:auto;padding:54px 18px 22px;background:#f7f9fc;scrollbar-width:none}.chat-scroll::-webkit-scrollbar{display:none}.stage-card{position:absolute;top:10px;right:14px;display:flex;justify-content:flex-end;align-items:flex-start;margin:0}.avatar-video{position:relative;width:126px;height:126px;overflow:hidden;border:4px solid #fff;border-radius:16px;background:#0f65d7;box-shadow:0 16px 34px #0f172a33}.fallback-face,.stream-video{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover}.fallback-face{z-index:0;object-position:center top}.stream-video{z-index:1;opacity:0;background:transparent;transition:opacity .16s ease}.stream-video.active{opacity:1}.chat-row{display:flex;align-items:flex-start;gap:9px;margin:13px 0}.chat-row.user{justify-content:flex-end}.chat-row.assistant{justify-content:flex-start}.chat-avatar{flex:0 0 auto;width:28px;height:28px;margin-top:3px;border:2px solid #fff;border-radius:50%;object-fit:cover;background:#0f65d7;box-shadow:0 3px 10px #0f172a29}.bubble-stack{max-width:min(278px,78%);min-width:0;display:flex;flex-direction:column;gap:6px}.chat-row.user .bubble-stack{align-items:flex-end}.bubble{position:relative;margin:0;padding:13px 15px;border-radius:13px;color:#172033;background:#fff;box-shadow:0 1px 1px #1118270a,0 7px 18px #1118270f;font-size:14px;line-height:1.62;overflow-wrap:anywhere}.chat-row.user .bubble{border-bottom-right-radius:7px;color:#fff;background:#2468f2;box-shadow:0 12px 22px #2468f238}.chat-row.assistant .bubble{border:1px solid #e6ebf2;border-bottom-left-radius:7px}.meta{color:#9aa5b6;font-size:11px;line-height:1}.typing-row{margin-top:20px}.typing-bubble{display:inline-flex;align-items:center;gap:5px;min-height:35px;padding:0 14px;border:1px solid #e6ebf2;border-radius:13px;color:#96a2b6;background:#fff;box-shadow:0 7px 18px #1118270f;font-size:11px}.typing-bubble span{width:5px;height:5px;border-radius:999px;background:#b7ccff;animation:typing 1.1s ease-in-out infinite}.typing-bubble 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ease}.voice-recording-overlay.cancel{border-color:#fecaca52;background:#991b1beb}.voice-wave{height:52px;display:flex;align-items:center;justify-content:center;gap:5px}.voice-wave span{width:4px;min-height:8px;max-height:42px;border-radius:2px;background:#69e0a2;box-shadow:0 0 12px #69e0a23d;transition:height 90ms ease-out,background .15s ease;animation:voice-idle-pulse .9s ease-in-out infinite alternate}.voice-recording-overlay.cancel .voice-wave span{background:#fecaca;box-shadow:none}.voice-recording-overlay strong{font-size:14px;line-height:18px;font-weight:800}.voice-recording-overlay small{color:#ffffffad;font-size:11px;line-height:15px}.voice-panel-enter-active,.voice-panel-leave-active{transition:opacity .14s ease,transform .14s ease}.voice-panel-enter-from,.voice-panel-leave-to{opacity:0;transform:translate(-50%,8px) scale(.96)}@keyframes voice-idle-pulse{0%{opacity:.72}to{opacity:1}}.bottom-composer{z-index:4;display:grid;grid-template-columns:40px minmax(0,1fr) 48px;gap:9px;align-items:center;padding:12px 16px 14px;border-top:1px solid #e6ebf2;background:#ffffffeb;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.bottom-composer.voice-mode{grid-template-columns:40px minmax(0,1fr);touch-action:none;overscroll-behavior:contain}.mode-button{width:40px;height:40px;display:inline-grid;place-items:center;border:0;border-radius:50%;color:#3f5573;background:#edf2f8;cursor:pointer}.mode-button:disabled{cursor:not-allowed;opacity:.5}.voice-button{width:100%;height:48px;min-width:0;overflow:hidden;padding:0 18px;border:1px solid #d6deea;border-radius:14px;color:#26364d;background:#f8fafc;font-size:15px;font-weight:600;text-overflow:ellipsis;white-space:nowrap;cursor:pointer;touch-action:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;transition:border-color .15s ease,color .15s ease,background .15s 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textarea::placeholder{color:#8a96aa}.input-shell textarea:disabled{opacity:.64}.send-button{width:48px;height:48px;display:inline-grid;place-items:center;border:0;border-radius:14px;color:#fff;background:#2468f2;box-shadow:0 8px 18px #2468f23d;cursor:pointer;transition:transform .15s ease,background .15s ease,box-shadow .15s ease}.send-button:not(:disabled):hover{background:#1859db;box-shadow:0 10px 22px #2468f24d}.send-button:not(:disabled):active{transform:translateY(1px)}.send-button:disabled{cursor:not-allowed;background:#b8c7dc;box-shadow:none}.spin{animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.auth-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:30;display:grid;place-items:center;padding:20px;background:#0f172a80;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.auth-dialog{display:flex;width:min(340px,100%);flex-direction:column;gap:14px;border:1px solid rgba(226,232,240,.9);border-radius:18px;padding:22px;background:#fff;box-shadow:0 24px 70px #0f172a3d}.auth-dialog h2{margin:0;color:#111827;font-size:20px;line-height:1.2}.auth-input{width:100%;height:44px;border:1px solid #dbe2ed;border-radius:12px;padding:0 13px;color:#172033;outline:none;background:#f8fafc}.auth-input:focus{border-color:#2468f2;box-shadow:0 0 0 3px #2468f21f}.auth-error{margin:-5px 0 0;color:#b91c1c;font-size:13px}.auth-button{display:inline-flex;height:44px;align-items:center;justify-content:center;gap:8px;border:0;border-radius:12px;color:#fff;background:#2468f2;cursor:pointer;font-weight:800}.auth-button:disabled{cursor:not-allowed;background:#b8c7dc}@media(max-width:520px){.app-shell{padding:0;background:#f7f9fc}.phone-frame{width:100%;height:100vh;min-height:100vh;padding:0;box-shadow:none}.phone-screen{border-radius:0}}@media(max-width:360px){.topbar{padding-right:128px}.stage-card{right:10px}.avatar-video{width:112px;height:112px}}