:root{--ink:#2a241c;--muted:#7a6f62;--red:#e23b3b;--gold:#f3c44a;--teal:#2f6d73;--navy:#16324f}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:linear-gradient(#fff8e8,#f3e4c6);color:var(--ink);font:16px/1.55 PingFang TC,Noto Sans TC,sans-serif}button,input,textarea{font:inherit;color:inherit}button{cursor:pointer}a{color:var(--teal)}.app{min-height:100dvh;max-width:430px;margin:0 auto;display:flex;flex-direction:column;position:relative;background:#fff6de}.app,.sky{overflow:hidden}.sky{pointer-events:none;position:absolute;inset:0;z-index:0}.jie{position:absolute;width:68px;height:68px;border-radius:50%;border:4px solid #fff;box-shadow:0 0 0 4px var(--red);background:radial-gradient(circle at 30% 25%,#fff,#f3c44a 42%,#e23b3b 43%);display:grid;place-items:center;font-weight:900;animation:roam 18s ease-in-out infinite}.orb{position:absolute;width:26px;height:26px;border-radius:50%;border:3px solid var(--navy);box-shadow:2px 2px 0 var(--navy)}.orb.g{background:linear-gradient(#e23b3b 50%,#fff 0);top:16%;left:10%;animation:float 5s ease-in-out infinite}.orb.c{background:linear-gradient(#2aa7a1 50%,#fff 0);top:26%;right:8%;animation:float 6s ease-in-out infinite reverse}.orb.i{background:linear-gradient(#f3c44a 50%,#fff 0);bottom:30%;left:14%;animation:float 7s ease-in-out infinite}.orb.d{background:linear-gradient(#7c5cff 50%,#fff 0);bottom:24%;right:12%;animation:float 4.8s ease-in-out infinite reverse}@keyframes roam{0%{top:10%;left:6%}25%{top:16%;left:68%}50%{top:54%;left:58%}75%{top:42%;left:10%}to{top:10%;left:6%}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-9px)}}.drawer,.main,.topbar{position:relative;z-index:2}.topbar{display:flex;justify-content:space-between;align-items:center;padding:12px 14px}.brand{font-weight:900;line-height:1.2}.sub{font-size:12px;color:var(--muted)}.iconbtn{border:3px solid var(--navy);background:#fff;border-radius:14px;padding:6px 10px;font-weight:800;box-shadow:3px 3px 0 var(--navy)}.main{flex:1 1;display:flex;flex-direction:column;min-height:0}.thread{flex:1 1;overflow:auto}.empty{min-height:48dvh;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;text-align:center;padding:16px}.empty h1{margin:0;font-size:24px}.empty p{color:var(--muted)}.suggestions{display:grid;grid-gap:8px;gap:8px;width:100%}.card,.composer,.drawer,.suggestions button{background:#fff;border:3px solid var(--navy);border-radius:18px;box-shadow:4px 4px 0 var(--navy)}.suggestions button{text-align:left;padding:12px}.suggestions small{display:block;color:var(--muted)}.thread-inner{padding:8px 14px 18px;display:flex;flex-direction:column;gap:10px}.row-msg{display:flex;gap:8px}.row-msg.user{justify-content:flex-end}.avatar{width:34px;height:34px;border-radius:50%;background:var(--gold);border:3px solid var(--red);display:grid;place-items:center;font-weight:900;flex:none;overflow:hidden}.avatar img{width:100%;height:100%;object-fit:cover}.bubble{max-width:78%;background:#fff;border:3px solid var(--navy);border-radius:18px 18px 18px 6px;padding:8px 12px;white-space:pre-wrap}.bubble.user{background:#ffe38a;border-radius:18px 18px 6px 18px}.composer-wrap{padding:8px 12px 16px}.composer{display:flex;gap:8px;padding:8px;align-items:flex-end}.composer textarea{flex:1 1;border:0;resize:none;outline:none;max-height:120px}.send{width:40px;height:40px;border-radius:50%;border:3px solid var(--navy);background:var(--red);color:#fff;font-weight:900}.hint{text-align:center;font-size:12px;color:var(--muted);margin-top:6px}.sheet{display:flex;flex-direction:column;gap:8px}.card{padding:12px}.card h3,.card p{margin:0}.card p{color:var(--muted);font-size:13px}.field label{display:block;font-size:12px;margin:8px 0 4px}.field input{width:100%;border:3px solid var(--navy);border-radius:12px;padding:10px}.primary{background:var(--gold);border:3px solid var(--navy);border-radius:14px;padding:10px 14px;font-weight:900;width:-moz-fit-content;width:fit-content}.drawer{display:none;position:absolute;inset:56px 10px 10px;padding:12px;overflow:auto}.drawer.open{display:block}@media (prefers-reduced-motion:reduce){.jie,.orb{animation:none}}