#view-tool-ai-chat{padding:0!important}
.aichat-v28{--p:#2568e8;--ink:#14233b;--muted:#75859d;--line:#dde6f1;--soft:#f5f8fc;color:var(--ink)}
.aichat-v28 *{box-sizing:border-box}
.aichat-v28 button,.aichat-v28 input,.aichat-v28 textarea{font:inherit}
.aichat-v28 .ac-shell{display:flex;flex-direction:column;gap:14px;padding:2px}

.aichat-v28 .ac-topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 18px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 2px 12px rgba(20,48,82,.05)}
.aichat-v28 .ac-brand{display:flex;align-items:center;gap:13px;min-width:0}
.aichat-v28 .ac-brand-icon{width:48px;height:48px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:26px;border-radius:13px;background:linear-gradient(135deg,#2568e8,#5a8ef0);box-shadow:0 6px 16px rgba(37,104,232,.26)}
.aichat-v28 .ac-brand-text{min-width:0}
.aichat-v28 .ac-brand-title{font-size:17px;font-weight:800;color:#142c4e;line-height:1.3}
.aichat-v28 .ac-brand-sub{font-size:12px;color:#8a99ad;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.aichat-v28 .ac-topbar-right{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.aichat-v28 .ac-model-box{display:flex;align-items:center;gap:4px;border:1px solid #d8e3f0;border-radius:9px;background:#fff;padding:0 8px 0 10px}
.aichat-v28 .ac-model-label{font-size:11px;color:#8a99ad;font-weight:700}
.aichat-v28 .ac-model-select{border:0;background:transparent;color:#24415f;padding:7px 2px;font-size:12px;font-weight:700;cursor:pointer;max-width:150px;outline:none}
.aichat-v28 .ac-model-select:hover{color:#2568e8}
.aichat-v28 .ac-guide-btn{border:1px solid #d8e3f0;border-radius:9px;background:#fff;color:#52677f;padding:7px 12px;font-size:12px;font-weight:700;cursor:pointer}
.aichat-v28 .ac-guide-btn:hover{border-color:#7fa7e8;color:#2568e8}
.aichat-v28 .ac-guide-btn.active{border-color:#2568e8;background:#eef4fd;color:#2568e8}
.aichat-v28 .ac-guide{border:1px solid var(--line);border-radius:15px;background:#fff;padding:14px 16px}
.aichat-v28 .ac-guide-section{margin-bottom:12px}
.aichat-v28 .ac-guide-section:last-child{margin-bottom:0}
.aichat-v28 .ac-guide-title{font-size:13px;font-weight:800;color:#24415f;margin-bottom:8px}
.aichat-v28 .ac-guide-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.aichat-v28 .ac-guide-item{display:flex;flex-direction:column;gap:2px;padding:9px 11px;border:1px solid #e6edf5;border-radius:10px;background:#fafcff}
.aichat-v28 .ac-guide-item b{font-size:12px;color:#24415f;font-weight:700}
.aichat-v28 .ac-guide-item span{font-size:11px;color:#8a99ad;line-height:1.45}
.aichat-v28 .ac-guide-item.is-upcoming{border-style:dashed;border-color:#e2d9c8;background:#fffdf7}
.aichat-v28 .ac-guide-item.is-upcoming b{color:#8a6d3b}
.aichat-v28 .ac-guide-item.is-upcoming span{color:#a8987a}

.aichat-v28 .ac-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:14px;align-items:stretch}
.aichat-v28 .ac-chat{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:15px;background:#fff;overflow:hidden;min-height:520px}
.aichat-v28 .ac-quick{display:flex;gap:6px;flex-wrap:wrap;padding:10px 14px;border-bottom:1px solid var(--line);background:#fafcff}
.aichat-v28 .ac-quick-btn{border:1px solid #d8e3f0;border-radius:9px;background:#fff;color:#52677f;padding:6px 11px;font-size:12px;font-weight:700;cursor:pointer}
.aichat-v28 .ac-quick-btn:hover{border-color:#7fa7e8;color:#2568e8}
.aichat-v28 .ac-new-btn{border:1px solid var(--p);border-radius:9px;background:var(--p);color:#fff;padding:6px 12px;font-size:12px;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;gap:4px;white-space:nowrap}
.aichat-v28 .ac-new-btn:hover{background:#1d57c8}
.aichat-v28 .ac-new-plus{font-size:14px;line-height:1;font-weight:800}

.aichat-v28 .ac-messages{flex:1;padding:16px;display:flex;flex-direction:column;gap:12px;overflow-y:auto;background:#fff}
.aichat-v28 .ac-msg{display:flex;width:100%}
.aichat-v28 .ac-msg.user{justify-content:flex-end}
.aichat-v28 .ac-msg.assistant{justify-content:flex-start}
.aichat-v28 .ac-bubble{max-width:82%;padding:10px 14px;border-radius:12px;font-size:13px;line-height:1.65;overflow-wrap:anywhere}
.aichat-v28 .ac-msg.user .ac-bubble{background:#eaf2fe;color:#1d3a5f;border-top-right-radius:4px}
.aichat-v28 .ac-msg.assistant .ac-bubble{background:#f5f8fc;color:#1d3049;border:1px solid #e6edf5;border-top-left-radius:4px}
.aichat-v28 .ac-msg-img{display:block;max-width:220px;max-height:220px;border-radius:9px;margin-bottom:6px}
.aichat-v28 .ac-p{margin:0}
.aichat-v28 .ac-h{margin:2px 0;font-weight:700;color:#173e6e}
.aichat-v28 .ac-li{margin:2px 0;padding-left:14px;position:relative}
.aichat-v28 .ac-li:before{content:"•";position:absolute;left:2px;color:#7fa7e8}
.aichat-v28 .ac-code{background:#0f1c2e;color:#dbe7f5;border-radius:8px;padding:10px 12px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px;overflow-x:auto;margin:0;white-space:pre-wrap;word-break:break-word}
.aichat-v28 .ac-code-wrap{position:relative;margin:6px 0}
.aichat-v28 .ac-code-wrap .ac-code{border-top-right-radius:0}
.aichat-v28 .ac-code-copy{position:absolute;top:0;right:0;border:0;border-radius:0 8px 0 8px;background:#1d3a5f;color:#cfe0f5;font-size:11px;padding:4px 10px;cursor:pointer}
.aichat-v28 .ac-code-copy:hover{background:#2568e8;color:#fff}
.aichat-v28 .ac-icode{background:#eef3fa;color:#20559a;border-radius:4px;padding:1px 5px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px}
.aichat-v28 .ac-table-wrap{overflow-x:auto;margin:6px 0}
.aichat-v28 .ac-table-wrap table{border-collapse:collapse;font-size:12px;min-width:240px}
.aichat-v28 .ac-table-wrap th,.aichat-v28 .ac-table-wrap td{border:1px solid #dbe5f1;padding:6px 10px;text-align:left}
.aichat-v28 .ac-table-wrap th{background:#eef4fb;color:#34506f;font-weight:700}
.aichat-v28 .ac-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:#8a99ad}
.aichat-v28 .ac-empty-title{font-size:15px;font-weight:700;color:#6a7c94}
.aichat-v28 .ac-empty-hint{font-size:12px}

.aichat-v28 .ac-inputbar{display:flex;gap:8px;align-items:center;padding:12px 14px;border-top:1px solid var(--line);background:#fafcff}
.aichat-v28 .ac-upload-btn{display:inline-flex;align-items:center;gap:5px;height:42px;border:1px solid #d7e1ed;border-radius:11px;background:#fff;color:#52677f;padding:0 12px;font-size:12px;font-weight:700;cursor:pointer;white-space:nowrap}
.aichat-v28 .ac-upload-btn:hover{border-color:#7fa7e8;background:#f3f7fd;color:#2568e8}
.aichat-v28 .ac-upload-emoji{font-size:16px;line-height:1}
.aichat-v28 .ac-input-wrap{flex:1;border:1px solid #d7e1ed;border-radius:11px;background:#fff;padding:9px 10px}
.aichat-v28 .ac-input{width:100%;border:0;outline:none;resize:none;font-size:13px;line-height:1.6;min-height:24px;background:transparent}
.aichat-v28 .ac-preview{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.aichat-v28 .ac-preview-img{width:56px;height:56px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
.aichat-v28 .ac-preview-remove{border:0;background:#ef4444;color:#fff;border-radius:50%;width:20px;height:20px;line-height:18px;cursor:pointer;font-size:14px}
.aichat-v28 .ac-send-btn{height:42px;border:0;border-radius:11px;background:var(--p);color:#fff;padding:0 22px;font-weight:700;cursor:pointer;white-space:nowrap}
.aichat-v28 .ac-send-btn[disabled]{opacity:.55;cursor:not-allowed}
.aichat-v28 .ac-html-bar{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap}
.aichat-v28 .ac-html-btn{border:1px solid #bcd2f2;border-radius:8px;background:#fff;color:#2568e8;font-size:12px;font-weight:700;padding:5px 12px;cursor:pointer}
.aichat-v28 .ac-html-btn:hover{background:#eef4fe}

.aichat-v28 .ac-side{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:15px;background:#fff;overflow:hidden;min-height:520px}
.aichat-v28 .ac-side-head{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--line);font-size:13px;font-weight:700;color:#24415f}
.aichat-v28 .ac-config-btn{border:1px solid #d8e3f0;border-radius:9px;background:#fff;color:#52677f;padding:7px 12px;font-size:12px;font-weight:700;cursor:pointer}
.aichat-v28 .ac-config-btn:hover{border-color:#7fa7e8;color:#2568e8}
.aichat-v28 .ac-sessions{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:6px;padding:10px}
.aichat-v28 .ac-session{display:flex;align-items:center;gap:8px;padding:9px 11px;border:1px solid #e6edf5;border-radius:10px;cursor:pointer;background:#fff}
.aichat-v28 .ac-session:hover{background:#f5f9ff}
.aichat-v28 .ac-session.active{border-color:#2568e8;background:#eef4fd}
.aichat-v28 .ac-session-main{flex:1;min-width:0}
.aichat-v28 .ac-session-title{font-size:13px;color:#1d3049;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.aichat-v28 .ac-session-meta{font-size:11px;color:#8a99ad;margin-top:2px}
.aichat-v28 .ac-session-del{border:0;background:transparent;color:#c2ccd9;font-size:18px;cursor:pointer;padding:0 2px}
.aichat-v28 .ac-session-del:hover{color:#ef4444}
.aichat-v28 .ac-sessions-empty{padding:24px;text-align:center;color:#8a99ad;font-size:12px}
.aichat-v28 .ac-side-tip{padding:10px 14px;border-top:1px solid var(--line);font-size:11px;color:#8a99ad;line-height:1.5}

.aichat-v28 .ac-field{margin-bottom:13px}
.aichat-v28 .ac-field label{display:block;margin:0 0 6px;color:#60728a;font-size:12px;font-weight:700}
.aichat-v28 .ac-input{width:100%;border:1px solid #d7e1ed;border-radius:9px;background:#fff;color:#1d3049;padding:9px 11px;outline:none;font-size:13px}
.aichat-v28 .ac-textarea{min-height:90px;resize:vertical;line-height:1.6}
.aichat-v28 .ac-btn{border:1px solid #d5e0ed;border-radius:9px;background:#fff;color:#3b526e;padding:8px 13px;font-weight:700;cursor:pointer}
.aichat-v28 .ac-btn.primary{border-color:var(--p);background:var(--p);color:#fff}
.aichat-v28 .ac-modal{position:fixed;z-index:1700;inset:0;display:none;align-items:center;justify-content:center;padding:18px;background:rgba(11,25,44,.45)}
.aichat-v28 .ac-modal.open{display:flex}
.aichat-v28 .ac-dialog{width:min(560px,94vw);max-height:90vh;overflow:auto;border-radius:16px;background:#fff;box-shadow:0 26px 70px rgba(7,21,40,.28)}
.aichat-v28 .ac-dialog-head{display:flex;align-items:center;padding:17px 19px;border-bottom:1px solid var(--line)}
.aichat-v28 .ac-dialog-head h3{margin:0;font-size:17px;flex:1}
.aichat-v28 .ac-dialog-body{padding:18px}
.aichat-v28 .ac-dialog-foot{display:flex;justify-content:flex-end;gap:8px;padding:14px 18px;border-top:1px solid var(--line)}

@media(max-width:980px){.aichat-v28 .ac-guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.aichat-v28 .ac-layout{grid-template-columns:1fr}.aichat-v28 .ac-side{min-height:auto;max-height:260px}}
@media(max-width:600px){.aichat-v28 .ac-guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.aichat-v28 .ac-topbar{flex-direction:column;align-items:flex-start}}
.aichat-v28 .ac-model-hint{padding:9px 16px;font-size:12px;color:#5b6c82;background:#f3f7fd;border:1px solid var(--line);border-radius:12px;line-height:1.5}
.aichat-v28 .ac-loading{display:inline-flex;align-items:center;gap:7px;color:#60728a;font-size:13px}
.aichat-v28 .ac-cursor{display:inline-block;width:7px;height:15px;background:#2568e8;border-radius:1px;margin-left:2px;vertical-align:-2px;animation:acBlink 1s infinite}
.aichat-v28 .ac-dot{width:6px;height:6px;border-radius:50%;background:#7fa7e8;display:inline-block;animation:acBlink 1.2s infinite}
.aichat-v28 .ac-dot:nth-child(2){animation-delay:.2s}
.aichat-v28 .ac-dot:nth-child(3){animation-delay:.4s}
@keyframes acBlink{0%,60%,100%{opacity:.2}30%{opacity:1}}