.chat-shell{position:fixed;inset:0;display:flex;flex-direction:column;background:var(--color-paper);z-index:10;padding-top:64px}.chat-header{flex-shrink:0;border-bottom:1px solid var(--color-border);background:var(--color-paper)}.chat-header-inner{max-width:768px;margin:0 auto;padding:12px 24px;display:flex;align-items:center;gap:12px}.avatar-seal{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border:2px solid var(--color-vermillion);border-radius:2px;color:var(--color-vermillion);font-family:var(--font-kai);font-size:.85rem;font-weight:700;transform:rotate(-4deg);flex-shrink:0}.avatar-name{font-family:var(--font-kai);font-size:1rem;font-weight:700;color:var(--color-ink);line-height:1.2}.avatar-sub{font-size:.7rem;color:var(--color-ink-faint);line-height:1.3}.switch-link{margin-left:auto;font-family:var(--font-kai);font-size:.75rem;color:var(--color-ink-faint);text-decoration:none;white-space:nowrap;transition:color .2s}.switch-link:hover{color:var(--color-gold)}.chat-messages{flex:1;overflow-y:auto;padding:24px;max-width:768px;width:100%;margin:0 auto;display:flex;flex-direction:column;gap:16px}.msg-row{display:flex;gap:10px;animation:msg-in .3s ease-out both}.msg-row-user{flex-direction:row-reverse}@keyframes msg-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.msg-avatar{width:28px;height:28px;border:1.5px solid var(--color-vermillion);border-radius:2px;color:var(--color-vermillion);font-family:var(--font-kai);font-size:.65rem;font-weight:700;display:flex;align-items:center;justify-content:center;transform:rotate(-4deg);flex-shrink:0;margin-top:2px}.msg-row-user .msg-avatar{border-color:var(--color-ink-faint);color:var(--color-ink-faint);transform:rotate(4deg)}.msg-bubble{max-width:75%;padding:10px 14px;font-size:.88rem;line-height:1.75;position:relative}.msg-ai{background:#fff;border:1px solid var(--color-border);border-radius:2px 12px 12px;color:var(--color-ink)}.msg-user-bubble{background:var(--color-ink);color:var(--color-paper);border-radius:12px 2px 12px 12px}.msg-ai .md-content{line-height:1.8}.msg-ai .md-content h1{font-family:var(--font-kai);font-size:1.15rem;font-weight:700;color:var(--color-ink);margin:1.25rem 0 .5rem;padding-bottom:.5rem;border-bottom:1.5px solid var(--color-border)}.msg-ai .md-content h2{font-family:var(--font-kai);font-size:1.05rem;font-weight:700;color:var(--color-ink);margin:1.25rem 0 .5rem;padding-left:.6rem;border-left:3px solid var(--color-gold)}.msg-ai .md-content h2:first-child{margin-top:0}.msg-ai .md-content h3{font-family:var(--font-kai);font-size:.92rem;font-weight:700;color:var(--color-ink);margin:1rem 0 .4rem;padding-bottom:.25rem;border-bottom:1px dashed var(--color-border)}.msg-ai .md-content p{margin-bottom:.6rem;color:var(--color-ink-light);font-size:.86rem}.msg-ai .md-content strong{color:var(--color-ink);font-weight:700}.msg-ai .md-content em{color:var(--color-ink-faint)}.msg-ai .md-content blockquote{border-left:3px solid var(--color-gold);padding:.4rem .8rem;margin:.8rem 0;background:var(--color-wash);color:var(--color-ink-faint);font-size:.83rem;font-style:italic}.msg-ai .md-content ul,.msg-ai .md-content ol{padding-left:1.2rem;margin:.6rem 0}.msg-ai .md-content li{margin-bottom:.3rem;color:var(--color-ink-light);font-size:.86rem;line-height:1.7}.msg-ai .md-content ul li{list-style:none;position:relative;padding-left:.4rem}.msg-ai .md-content ul li:before{content:"·";position:absolute;left:-.7rem;color:var(--color-gold);font-size:1.2rem;font-weight:700;line-height:1.2}.msg-ai .md-content hr{border:none;height:1px;background:linear-gradient(90deg,transparent,var(--color-border),transparent);margin:1.2rem 0}.thinking-dots{display:inline-flex;gap:4px;align-items:center;padding:4px 0}.thinking-dots span{width:5px;height:5px;border-radius:50%;background:var(--color-gold);animation:dot-bounce 1.4s ease-in-out infinite}.thinking-dots span:nth-child(2){animation-delay:.16s}.thinking-dots span:nth-child(3){animation-delay:.32s}@keyframes dot-bounce{0%,80%,to{transform:scale(.6);opacity:.4}40%{transform:scale(1);opacity:1}}.chat-examples{flex-shrink:0;max-width:768px;width:100%;margin:0 auto;padding:0 24px 8px;display:flex;gap:8px;flex-wrap:wrap;justify-content:center}.example-chip{padding:5px 14px;font-size:.75rem;font-family:var(--font-kai);color:var(--color-gold);border:1px solid var(--color-gold);border-radius:999px;background:transparent;cursor:pointer;transition:all .2s}.example-chip:hover{background:var(--color-gold);color:var(--color-paper)}.chat-input-bar{flex-shrink:0;border-top:1px solid var(--color-border);background:var(--color-paper)}.chat-input-inner{max-width:768px;margin:0 auto;padding:12px 24px;display:flex;gap:10px;align-items:center}.chat-input{flex:1;padding:10px 16px;font-size:.88rem;color:var(--color-ink);background:#fff;border:1px solid var(--color-border);border-radius:8px;outline:none;transition:border-color .2s}.chat-input:focus{border-color:var(--color-gold)}.chat-input::placeholder{color:var(--color-ink-faint)}.model-select{padding:8px 28px 8px 12px;font-size:.75rem;font-family:var(--font-mono);color:var(--color-ink-faint);background:#fff;border:1px solid var(--color-border);border-radius:8px;outline:none;cursor:pointer;flex-shrink:0;transition:border-color .2s;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238a8a7a' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 8px center}.model-select:focus{border-color:var(--color-gold)}.search-toggle{display:flex;align-items:center;gap:4px;padding:8px 12px;font-size:.75rem;font-family:var(--font-kai);color:var(--color-ink-faint);background:transparent;border:1px solid var(--color-border);border-radius:8px;cursor:pointer;flex-shrink:0;transition:all .2s}.search-toggle:hover{border-color:var(--color-gold);color:var(--color-gold)}.search-toggle.active{border-color:var(--color-gold);color:var(--color-gold);background:#b8860b14}.chat-send{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--color-ink);color:var(--color-paper);border:none;border-radius:8px;cursor:pointer;transition:all .2s;flex-shrink:0}.chat-send:hover:not(:disabled){background:var(--color-gold)}.chat-send:disabled{opacity:.3;cursor:not-allowed}