/* ==================== CSS 变量 ==================== */
:root { --bg:#f0f2f5; --card:#fff; --primary:#6366f1; --primary2:#8b5cf6; --success:#10b981; --warn:#f59e0b; --danger:#ef4444; --text:#1f2937; --sub:#6b7280; --border:#e5e7eb; --radius:10px; }

* { margin:0; padding:0; box-sizing:border-box; }
body { font-family: -apple-system,"Microsoft YaHei",sans-serif; background:var(--bg); color:var(--text); min-height:100vh; }

/* ==================== 顶部导航 ==================== */
.topbar { background:linear-gradient(135deg, var(--primary) 0%, var(--primary2) 100%); color:#fff; padding:0 24px; height:56px; display:flex; align-items:center; gap:12px; position:sticky; top:0; z-index:100; }
.topbar .logo { font-size:20px; font-weight:700; }
.topbar .ver { font-size:12px; opacity:.7; margin-left:4px; }
.topbar .links { margin-left:auto; display:flex; gap:12px; }
.topbar .links a { color:#fff; opacity:.8; text-decoration:none; font-size:13px; transition:opacity .2s; }
.topbar .links a:hover { opacity:1; }

/* ==================== Tab 导航 ==================== */
.tabs { display:flex; gap:0; background:var(--card); border-bottom:1px solid var(--border); padding:0 24px; position:sticky; top:56px; z-index:99; }
.tab-btn { padding:14px 24px; border:none; background:none; font-size:14px; cursor:pointer; border-bottom:3px solid transparent; color:var(--sub); transition:all .2s; font-family:inherit; display:flex; align-items:center; gap:6px; }
.tab-btn:hover { color:var(--text); }
.tab-btn.active { color:var(--primary); border-bottom-color:var(--primary); font-weight:600; }
.tab-icon { font-size:18px; }

/* ==================== 内容区 ==================== */
.main { max-width:1400px; margin:0 auto; padding:20px; }
@keyframes fadeIn { from{opacity:0;transform:translateY(8px);} to{opacity:1;transform:translateY(0);} }

/* ==================== 卡片 ==================== */
.card { background:var(--card); border-radius:var(--radius); padding:20px; margin-bottom:16px; border:1px solid var(--border); }
.card h2 { font-size:16px; margin-bottom:12px; display:flex; align-items:center; gap:8px; }
.card h3 { font-size:14px; margin-bottom:8px; color:var(--sub); }

/* ==================== 表单 ==================== */
.input-row { display:flex; gap:8px; margin-bottom:12px; flex-wrap:wrap; }
.input, .textarea, .select { padding:10px 14px; border:1px solid var(--border); border-radius:8px; font-size:14px; font-family:inherit; outline:none; transition:border-color .2s; }
.input:focus, .textarea:focus, .select:focus { border-color:var(--primary); }
.input { flex:1; min-width:200px; }
.textarea { width:100%; resize:vertical; min-height:120px; }
.select { min-width:160px; }
.input-sm { width:120px; flex:none; }

.btn { padding:10px 20px; border:none; border-radius:8px; font-size:14px; cursor:pointer; font-family:inherit; font-weight:500; transition:all .2s; display:inline-flex; align-items:center; gap:6px; white-space:nowrap; }
.btn:disabled { opacity:.5; cursor:not-allowed; }
.btn-primary { background:var(--primary); color:#fff; }
.btn-primary:hover:not(:disabled) { background:#4f46e5; }
.btn-purple { background:var(--primary2); color:#fff; }
.btn-purple:hover:not(:disabled) { background:#7c3aed; }
.btn-success { background:var(--success); color:#fff; }
.btn-outline { background:#fff; color:var(--primary); border:1px solid var(--primary); }
.btn-sm { padding:6px 12px; font-size:12px; }
.btn-danger { background:var(--danger); color:#fff; }
.btn-warn { background:var(--warn); color:#fff; }

/* ==================== 消息区 ==================== */
.msg-area { border:1px solid var(--border); border-radius:var(--radius); height:400px; overflow-y:auto; padding:16px; background:#fafbfc; margin-bottom:12px; display:flex; flex-direction:column; gap:10px; }
.msg { display:flex; gap:10px; max-width:85%; animation: fadeIn .3s; }
.msg.user { align-self:flex-end; flex-direction:row-reverse; }
.msg.assistant { align-self:flex-start; }
.msg-avatar { width:34px; height:34px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:16px; flex-shrink:0; }
.msg.user .msg-avatar { background:var(--primary); color:#fff; }
.msg.assistant .msg-avatar { background:var(--success); color:#fff; }
.msg-bubble { padding:10px 14px; border-radius:12px; line-height:1.6; font-size:14px; word-break:break-word; white-space:pre-wrap; }
.msg.user .msg-bubble { background:var(--primary); color:#fff; border-bottom-right-radius:4px; }
.msg.assistant .msg-bubble { background:#fff; border:1px solid var(--border); border-bottom-left-radius:4px; }
.msg.streaming .msg-bubble { border-color:var(--primary); box-shadow:0 0 0 1px var(--primary); }

/* ==================== 商品信息展示 ==================== */
.result-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(280px, 1fr)); gap:12px; margin-top:12px; }
.result-item { background:#f9fafb; padding:12px 16px; border-radius:8px; border:1px solid var(--border); }
.result-item .label { font-size:12px; color:var(--sub); margin-bottom:4px; }
.result-item .value { font-size:14px; font-weight:500; }
.result-json { background:#1e293b; color:#e2e8f0; padding:16px; border-radius:8px; font-family:'Fira Code',monospace; font-size:13px; white-space:pre-wrap; overflow-x:auto; }

/* ==================== 文件上传区 ==================== */
.upload-zone { border:2px dashed var(--border); border-radius:var(--radius); padding:32px; text-align:center; transition:all .2s; cursor:pointer; margin-bottom:12px; }
.upload-zone:hover, .upload-zone.drag-over { border-color:var(--primary); background:#eef2ff; }
.upload-zone p { color:var(--sub); }
.upload-zone .icon { font-size:40px; margin-bottom:8px; }

/* ==================== Toast ==================== */
.toast-container { position:fixed; top:70px; right:20px; z-index:9999; display:flex; flex-direction:column; gap:8px; }
.toast { padding:10px 18px; border-radius:8px; color:#fff; font-size:13px; animation:slideIn .3s; box-shadow:0 4px 12px rgba(0,0,0,.15); }
.toast.success { background:var(--success); }
.toast.error { background:var(--danger); }
.toast.info { background:var(--primary); }
@keyframes slideIn { from{opacity:0;transform:translateX(100px);} to{opacity:1;transform:translateX(0);} }

/* ==================== 流式结果比较 ==================== */
.stream-compare { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.stream-compare .card { margin-bottom:0; }

/* ==================== 表格样式 ==================== */
.data-table { width:100%; border-collapse:collapse; font-size:13px; }
.data-table th { background:#f9fafb; padding:10px 12px; text-align:left; font-weight:600; border-bottom:2px solid var(--border); white-space:nowrap; }
.data-table td { padding:10px 12px; border-bottom:1px solid var(--border); vertical-align:middle; }
.data-table tr:hover { background:#f9fafb; }
.data-table .status-ready { color:var(--success); font-weight:600; }
.data-table .status-processing { color:var(--warn); font-weight:600; }
.data-table .status-failed { color:var(--danger); font-weight:600; }

/* ==================== 分页 ==================== */
.pagination { display:flex; gap:4px; justify-content:center; margin-top:12px; }
.pagination button { padding:6px 12px; border:1px solid var(--border); background:#fff; border-radius:6px; cursor:pointer; font-size:12px; }
.pagination button:hover:not(:disabled) { background:var(--primary); color:#fff; border-color:var(--primary); }
.pagination button:disabled { opacity:.5; cursor:not-allowed; }
.pagination button.active { background:var(--primary); color:#fff; border-color:var(--primary); }

/* ==================== 统计卡片 ==================== */
.stat-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(180px, 1fr)); gap:12px; margin-bottom:16px; }
.stat-card { background:#f9fafb; border-radius:8px; padding:16px; text-align:center; border:1px solid var(--border); }
.stat-card .number { font-size:28px; font-weight:700; color:var(--primary); }
.stat-card .label { font-size:12px; color:var(--sub); margin-top:4px; }

/* ==================== 弹窗 ==================== */
.modal-overlay { position:fixed; top:0; left:0; right:0; bottom:0; background:rgba(0,0,0,.5); z-index:200; display:none; align-items:center; justify-content:center; }
.modal-overlay.active { display:flex; }
.modal-box { background:#fff; border-radius:var(--radius); width:90%; max-width:800px; max-height:85vh; overflow-y:auto; padding:24px; position:relative; }
.modal-box h2 { margin-bottom:16px; font-size:18px; }
.modal-close { position:absolute; top:16px; right:20px; font-size:24px; cursor:pointer; color:var(--sub); background:none; border:none; }
.modal-close:hover { color:var(--text); }

/* ==================== 分类标签 ==================== */
.category-tag { display:inline-block; padding:2px 8px; border-radius:12px; font-size:11px; background:#eef2ff; color:var(--primary); }

/* ==================== 搜索结果 ==================== */
.search-result { background:#f9fafb; border-radius:8px; padding:12px; margin-bottom:8px; border:1px solid var(--border); }
.search-result .score { font-size:12px; color:var(--success); font-weight:600; }
.search-result .meta { font-size:12px; color:var(--sub); margin-top:4px; }
.search-result .content { font-size:13px; margin-top:6px; line-height:1.5; }

/* ==================== 端点标签 ==================== */
.badge { display:inline-block; padding:2px 8px; border-radius:12px; font-size:11px; font-weight:600; }
.badge-get { background:#dbeafe; color:#1d4ed8; }
.badge-post { background:#fef3c7; color:#b45309; }
.endpoint-info { display:flex; align-items:center; gap:6px; margin-bottom:8px; flex-wrap:wrap; }

/* ==================== 响应式 ==================== */
@media(max-width:768px) { .tabs { overflow-x:auto; } .tab-btn { padding:12px 16px; font-size:13px; } .stream-compare { grid-template-columns:1fr; } .stat-grid { grid-template-columns:1fr 1fr; } }