:root{--bg:#fff1ed;--bg-elevated:#fffcfae0;--ink:#3a2730;--muted:#8a6570;--line:#f0d5d8;--accent:#d45d72;--accent-deep:#b8485c;--accent-soft:#ffe0e5;--warm:#ffb38a;--warm-soft:#ffe8d6;--danger:#c24b3f;--shadow:0 20px 48px #b45a6e1f;--radius:22px;color:var(--ink);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;background-color:#0000;background-image:radial-gradient(900px 520px at 8% -8%,#ffd4c8 0%,#0000 58%),radial-gradient(780px 480px at 96% 4%,#ffd9e4 0%,#0000 52%),radial-gradient(640px 420px at 50% 108%,#ffe7c8 0%,#0000 55%),linear-gradient(165deg,#fff6f2 0%,#ffeef2 48%,#fff5ea 100%);background-position:0 0,0 0,0 0,0 0;background-repeat:repeat,repeat,repeat,repeat;background-size:auto,auto,auto,auto;background-attachment:fixed;background-origin:padding-box,padding-box,padding-box,padding-box;background-clip:border-box,border-box,border-box,border-box;font-family:Nunito,PingFang SC,Hiragino Sans 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var(--radius) var(--radius);background:linear-gradient(#0000,#ffece68c);grid-template-columns:1fr auto;align-items:end;gap:10px;padding:16px;display:grid}.composer textarea{resize:none;min-height:64px}.side-head{justify-content:space-between;align-items:center;padding:16px 16px 8px;display:flex}.side-head h2{margin:0;font-family:Noto Serif SC,serif;font-size:16px}.side-note{color:var(--muted);margin:0 0 8px;font-size:13px;line-height:1.5}.treasure-pane{background:linear-gradient(#fff8f6f5 0%,#ffece6eb 100%);position:relative;overflow:hidden}.treasure{z-index:1;text-align:center;flex-direction:column;align-items:center;gap:8px;height:100%;padding:22px 18px 20px;display:flex;position:relative}.treasure-sky{pointer-events:none;position:absolute;inset:0;overflow:hidden}.spark{background:#fff;border-radius:50%;width:6px;height:6px;animation:2.8s ease-in-out infinite twinkle;position:absolute;box-shadow:0 0 10px #ffbea0e6}.spark.s1{animation-delay:0s;top:12%;left:18%}.spark.s2{width:4px;height:4px;animation-delay:.6s;top:22%;right:16%}.spark.s3{animation-delay:1.1s;top:48%;left:10%}.spark.s4{width:5px;height:5px;animation-delay:1.6s;bottom:28%;right:12%}.spark.s5{animation-delay:2.1s;bottom:18%;left:22%}@keyframes twinkle{0%,to{opacity:.2;transform:scale(.7)}50%{opacity:1;transform:scale(1.2)}}.float-heart{opacity:.55;background:#f4a0ae;width:12px;height:12px;animation:7s ease-in-out infinite drift;position:absolute;transform:rotate(45deg)}.float-heart:before,.float-heart:after{content:"";background:#f4a0ae;border-radius:50%;width:12px;height:12px;position:absolute}.float-heart:before{top:0;left:-6px}.float-heart:after{top:-6px;left:0}.float-heart.h1{animation-delay:0s;top:30%;left:14%}.float-heart.h2{animation-delay:1.5s;top:58%;right:18%;transform:rotate(45deg)scale(.8)}.float-heart.h3{animation-delay:3s;bottom:22%;left:40%;transform:rotate(45deg)scale(.7)}@keyframes 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solid #ffffff73;border-radius:18px 18px 8px 8px;width:100%;height:100%;box-shadow:0 8px 18px #b4465a40}.chest-latch{z-index:4;background:linear-gradient(#ffe0a8,#f0b45a);border:1px solid #e2a24a;border-radius:8px;width:28px;height:18px;margin-left:-14px;position:absolute;bottom:-8px;left:50%}.chest-body{z-index:2;background:linear-gradient(#f08a78 0%,#d45d72 45%,#b8485c 100%);border:2px solid #ffffff59;border-radius:12px 12px 18px 18px;height:72px;position:absolute;bottom:8px;left:10px;right:10px;overflow:hidden;box-shadow:0 14px 28px #a03c5038}.chest-glow{opacity:0;background:radial-gradient(circle at 50% 0,#ffecb400 30%,#0000 70%);transition:opacity .5s;position:absolute;inset:0}.treasure.is-open .chest-glow{opacity:1;background:radial-gradient(circle at 50% -10%,#ffecb4f2 0%,#ffb4a026 45%,#0000 70%);animation:2.2s ease-in-out infinite glowPulse}@keyframes glowPulse{0%,to{opacity:.75}50%{opacity:1}}.chest-band{opacity:.9;background:linear-gradient(90deg,#f7d08a,#ffe7b0,#f0b45a);height:10px;position:absolute;top:28px;left:0;right:0}.chest-keyhole{background:#461e2859;border-radius:6px;width:10px;height:14px;margin-left:-5px;position:absolute;top:42px;left:50%}.chest-shine{mix-blend-mode:soft-light;pointer-events:none;z-index:5;background:linear-gradient(120deg,#0000 40%,#ffffff59 50%,#0000 60%);animation:4.5s ease-in-out infinite sheen;position:absolute;inset:0}@keyframes sheen{0%,to{opacity:0;transform:translate(-30%)}40%{opacity:.7}60%{opacity:0;transform:translate(30%)}}.chest-hint{color:var(--muted);margin:0;font-size:12px;font-weight:700}.secret-orb{opacity:.65;background:#ffffffb8;border:1px solid #ffd2d7e6;border-radius:18px;width:min(100%,250px);margin-top:6px;padding:14px 16px;transition:all .45s;transform:translateY(8px)}.secret-orb.show{opacity:1;transform:translateY(0);box-shadow:0 12px 28px #d45d721f}.secret-count{justify-content:center;align-items:baseline;gap:8px;margin-bottom:6px;display:flex}.secret-count strong{color:var(--accent-deep);font-family:Noto Serif SC,serif;font-size:2rem;line-height:1}.secret-count span{color:var(--muted);font-size:13px;font-weight:700}.secret-whisper{color:var(--muted);margin:0;font-size:12px;line-height:1.55}.soft-add{color:#fff;background:linear-gradient(135deg,#ffd0c2,#f4a0ae 55%,#e8915a);border:0;width:min(100%,240px);margin-top:auto;font-weight:800}.pretty-form{text-align:left;padding:22px 18px 20px}.pretty-form h3{margin:0 0 4px;font-family:Noto Serif SC,serif;font-size:1.35rem}.cred-list{gap:8px;margin:0;padding:8px 12px 16px;list-style:none;display:grid;overflow:auto}.cred-item{text-align:left;border:1px solid var(--line);width:100%;color:var(--ink);background:#fffaf9;border-radius:16px;gap:2px;padding:12px 14px;font-weight:700;display:grid}.cred-item:hover{background:#fff5f6;border-color:#f0b4be}.cred-item span{color:var(--muted);font-size:13px;font-weight:500}.empty{color:var(--muted);padding:12px}.cred-form{gap:10px;padding:12px 16px 20px;display:grid;overflow:auto}.cred-form h3{margin:0 0 4px;font-family:Noto Serif SC,serif}.form-actions{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}@media (width<=860px){.login-shell{padding:16px;padding-bottom:max(16px, env(safe-area-inset-bottom));align-items:center}.login-card{border-radius:22px;gap:12px;width:100%;padding:28px 20px 22px}.login-card h1{font-size:1.65rem}.brand-mark{border-radius:18px;width:56px;height:56px}.app-shell{width:100%;max-width:100%;height:100dvh;max-height:100dvh;padding:max(10px, env(safe-area-inset-top)) 10px max(10px, env(safe-area-inset-bottom)) 10px;flex-direction:column;gap:10px;margin:0;display:flex;overflow:hidden}.topbar{flex-direction:row;flex-shrink:0;justify-content:space-between;align-items:center;gap:8px}.topbar-brand{flex:1;gap:10px;min-width:0}.topbar-brand .brand-mark{border-radius:14px;flex-shrink:0;width:40px;height:40px}.topbar-brand .brand-mark svg{width:20px;height:20px}.topbar-brand .eyebrow{white-space:nowrap;text-overflow:ellipsis;font-size:11px;overflow:hidden}.topbar h1{letter-spacing:.02em;white-space:nowrap;text-overflow:ellipsis;font-size:1.15rem;overflow:hidden}.topbar-actions{flex-shrink:0;gap:6px}.topbar-actions .ghost{white-space:nowrap;padding:8px 10px;font-size:12px}.main{flex:1;grid-template-columns:none;min-height:0;display:block;position:relative}.chat-pane{border-radius:18px;height:100%;min-height:0}.messages{-webkit-overflow-scrolling:touch;gap:10px;padding:12px}.bubble{border-radius:16px;max-width:94%;padding:11px 12px}.bubble pre{overflow-wrap:anywhere;font-size:14px;line-height:1.5}.thinking-chain{border-radius:12px;margin-bottom:10px}.thinking-toggle{padding:9px 10px;font-size:12px}.thinking-step{padding:7px 8px}.thinking-step p{font-size:11px}.suggestions{-webkit-overflow-scrolling:touch;scrollbar-width:none;flex-wrap:nowrap;gap:6px;padding:0 10px 6px;overflow-x:auto}.suggestions::-webkit-scrollbar{display:none}.suggestions button{flex:none;padding:7px 11px;font-size:12px}.composer{padding:10px;padding-bottom:max(10px, env(safe-area-inset-bottom));grid-template-columns:1fr;gap:8px}.composer textarea{min-height:44px;max-height:96px;padding:11px 12px;font-size:16px}.composer button{width:100%;padding:12px;font-size:15px}input,textarea{font-size:16px}.side-pane{left:10px;right:10px;bottom:max(10px, env(safe-area-inset-bottom));z-index:40;border-radius:24px 24px 20px 20px;height:min(78dvh,620px);min-height:0;transition:transform .35s cubic-bezier(.22,1,.36,1);display:none;position:fixed;top:auto;transform:translateY(110%);box-shadow:0 -12px 40px #a03c502e}.app-shell:not(.sidebar-collapsed) .side-pane{display:flex;transform:translateY(0)}.mobile-scrim{display:none}.app-shell:not(.sidebar-collapsed) .mobile-scrim{z-index:30;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#3a273047;display:block;position:fixed;inset:0}.treasure{-webkit-overflow-scrolling:touch;gap:6px;padding:16px 14px 14px;overflow:auto}.treasure-title{font-size:1.35rem}.treasure-sub{max-width:280px;font-size:12px}.chest{width:140px;height:110px}.chest-lid{height:36px;top:14px}.chest-body{height:62px}.secret-orb{width:100%;padding:12px 14px}.secret-count strong{font-size:1.6rem}.soft-add{width:100%;margin-top:10px}.pretty-form{padding:16px 14px max(14px, env(safe-area-inset-bottom));overflow:auto}.form-actions{justify-content:stretch}.form-actions button{flex:1}}@media (width>=861px){.mobile-scrim{display:none!important}}