:root{
  --violet:#7c3aed;--violet-d:#6d28d9;--violet-l:#8b5cf6;--violet-ll:#a78bfa;--violet-lll:#c4b5fd;--violet-llll:#ddd6fe;
  --violet-bg:#f5f3ff;--violet-bg2:#ede9fe;
  --ink:#1e1b2e;--ink-2:#52516b;--ink-3:#9b9ab0;
  --line:#ece8fb;--card:#fff;--bg:#f7f5fd;
  --green:#16a34a;--red:#dc2626;--amber:#d97706;--cyan:#0891b2;
  --shadow:0 8px 28px rgba(124,58,237,.12);
  --shadow-sm:0 2px 12px rgba(30,27,46,.05);
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Noto Sans SC",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;cursor:pointer}
.app{display:flex;min-height:100vh}

/* sidebar */
.sidebar{width:232px;background:linear-gradient(180deg,#1f1240,#2a1854);color:#e8e0fb;display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0;z-index:50}
.side-brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:17px;padding:20px 18px 18px}
.brand-logo{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--violet-l),var(--violet-d));display:grid;place-items:center;box-shadow:0 5px 14px rgba(124,58,237,.5)}
.side-nav{flex:1;padding:6px 12px;display:flex;flex-direction:column;gap:3px;overflow-y:auto}
.nav-item{display:flex;align-items:center;gap:11px;padding:11px 14px;border-radius:10px;color:#c3bbe0;font-weight:600;font-size:14.5px;transition:.18s}
.nav-item:hover{background:rgba(167,139,250,.18);color:#fff}
.nav-item.active{background:linear-gradient(135deg,var(--violet-l),var(--violet-d));color:#fff;box-shadow:0 6px 16px rgba(124,58,237,.45)}
.ni-ico{font-size:17px}
.ni-tag{margin-left:auto;font-style:normal;font-size:9px;font-weight:800;background:rgba(255,255,255,.25);color:#fff;padding:1px 6px;border-radius:7px}
.side-foot{padding:16px 18px;border-top:1px solid rgba(167,139,250,.2)}
.back-home{font-size:13px;color:#b6abda}.back-home:hover{color:#fff}

/* main */
.main{flex:1;margin-left:232px;min-width:0}
.topbar{height:62px;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:16px;padding:0 26px;position:sticky;top:0;z-index:40}
.hamburger{display:none;background:none;border:none;font-size:22px;cursor:pointer}
.tb-title{font-size:19px;font-weight:800}
.tb-right{margin-left:auto;display:flex;align-items:center;gap:18px}
.tb-live{display:flex;align-items:center;gap:6px;font-size:12.5px;color:var(--violet-d);font-weight:600}
.tb-live .dot{width:8px;height:8px;border-radius:50%;background:var(--violet);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(124,58,237,.4)}50%{opacity:.6;box-shadow:0 0 0 5px rgba(124,58,237,0)}}
.tb-clock{font-size:13px;color:var(--ink-2);font-variant-numeric:tabular-nums}
.tb-user{display:flex;align-items:center;gap:8px}
.avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--violet-l),var(--violet-d));color:#fff;display:grid;place-items:center;font-weight:700;font-size:14px}
.u-name{font-size:13.5px;font-weight:600}
.content{padding:24px}

/* grids */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.mb16{margin-bottom:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.card-pad{padding:20px}
.card-h{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.card-h h3{font-size:16px;font-weight:800}
.card-h .more{font-size:12px;color:var(--ink-3)}

/* KPI */
.kpi{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.kpi::after{content:"";position:absolute;right:-16px;top:-16px;width:72px;height:72px;border-radius:50%;background:var(--violet-bg2);opacity:.7}
.kpi-ico{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--violet-bg2),#fff);display:grid;place-items:center;font-size:20px;border:1px solid var(--line);position:relative;z-index:2}
.kpi-label{font-size:13px;color:var(--ink-3);margin-top:12px}
.kpi-val{font-size:26px;font-weight:900;margin-top:2px;font-variant-numeric:tabular-nums;position:relative;z-index:2}
.kpi-val.violet{color:var(--violet-d)}
.kpi-delta{font-size:12px;margin-top:4px;font-weight:600}
.kpi-delta.up{color:var(--green)}.kpi-delta.down{color:var(--red)}

.chart-box{position:relative;height:260px}.chart-box.sm{height:220px}

/* gradient KPI for workbench AI cards */
.kpi-ai{background:linear-gradient(135deg,#7c3aed,#5b21b6);color:#fff;border:none}
.kpi-ai::after{background:rgba(255,255,255,.12)}
.kpi-ai .kpi-ico{background:rgba(255,255,255,.2);border:none}
.kpi-ai .kpi-label{color:#d6c8ff}
.kpi-ai .kpi-val{color:#fff}
.kpi-ai .kpi-delta{color:#c4f5d4!important}

/* table */
.tbl-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13.5px}
thead th{text-align:left;padding:12px 14px;color:var(--ink-3);font-weight:700;font-size:12.5px;border-bottom:1px solid var(--line);white-space:nowrap}
tbody td{padding:13px 14px;border-bottom:1px solid #f4f1fb;white-space:nowrap}
tbody tr:hover{background:var(--violet-bg)}
tbody tr:last-child td{border-bottom:none}
.t-strong{font-weight:700}.t-sub{color:var(--ink-3);font-size:12px}

/* badges */
.badge{display:inline-block;padding:3px 10px;border-radius:8px;font-size:12px;font-weight:600}
.b-violet{background:var(--violet-bg2);color:var(--violet-d)}
.b-green{background:#dcfce7;color:#15803d}
.b-red{background:#fee2e2;color:#dc2626}
.b-amber{background:#fef3c7;color:#b45309}
.b-cyan{background:#cffafe;color:#0e7490}
.b-gray{background:#eef0f5;color:#64748b}

/* buttons */
.btn{padding:8px 16px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:13px;font-weight:600;cursor:pointer;transition:.18s;font-family:inherit}
.btn:hover{border-color:var(--violet-ll);color:var(--violet-d)}
.btn-fill{background:linear-gradient(135deg,var(--violet-l),var(--violet-d));color:#fff;border:none;box-shadow:0 4px 12px rgba(124,58,237,.3)}
.btn-fill:hover{transform:translateY(-1px);color:#fff}
.btn-sm{padding:5px 12px;font-size:12px}
.toolbar{display:flex;align-items:center;gap:10px;margin-bottom:18px;flex-wrap:wrap}
.search{flex:1;min-width:180px;max-width:300px;position:relative}
.search input{width:100%;padding:9px 14px 9px 36px;border:1px solid var(--line);border-radius:10px;font-size:13.5px;font-family:inherit;background:#fff}
.search input:focus{outline:none;border-color:var(--violet-ll)}
.search::before{content:"🔍";position:absolute;left:12px;top:50%;transform:translateY(-50%);font-size:13px;opacity:.5}
.seg{display:flex;gap:4px;background:#efeafc;padding:4px;border-radius:11px}
.seg button{border:none;background:none;padding:6px 14px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;color:var(--ink-2);font-family:inherit}
.seg button.on{background:#fff;color:var(--violet-d);box-shadow:var(--shadow-sm)}

.prog{height:7px;background:#ece8fb;border-radius:6px;overflow:hidden;min-width:80px}
.prog>i{display:block;height:100%;background:linear-gradient(90deg,var(--violet-l),var(--violet-d));border-radius:6px}
.section-title{font-size:15px;font-weight:800;margin:24px 0 14px;display:flex;align-items:center;gap:8px}

/* AI insight card (workbench) */
.ai-insight{background:linear-gradient(135deg,#2a1854,#3a1f6b);color:#fff;border-radius:var(--radius);padding:20px;position:relative;overflow:hidden}
.ai-insight::before{content:"🤖";position:absolute;right:18px;top:14px;font-size:48px;opacity:.18}
.ai-insight h3{font-size:15px;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.ai-insight .ins-row{display:flex;gap:10px;padding:9px 0;border-top:1px solid rgba(167,139,250,.2);font-size:13.5px;color:#dcd3f5}
.ai-insight .ins-row:first-of-type{border:none}
.ai-insight .ins-row b{color:#fff}
.ins-tag{font-size:10px;background:rgba(167,139,250,.3);padding:2px 8px;border-radius:6px;flex-shrink:0}

/* data source */
.health-bar{display:inline-flex;align-items:center;gap:6px}
.health-bar .hb{width:50px;height:6px;background:#ece8fb;border-radius:4px;overflow:hidden}
.health-bar .hb>i{display:block;height:100%;background:linear-gradient(90deg,#22c55e,#16a34a);border-radius:4px}

/* decision card */
.dec-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-sm);transition:.2s}
.dec-card:hover{box-shadow:var(--shadow)}
.dec-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.dec-scene{font-size:15.5px;font-weight:800}
.dec-model{font-size:11.5px;color:var(--violet-d);background:var(--violet-bg2);padding:3px 10px;border-radius:8px;display:inline-block;margin-bottom:10px}
.dec-rec{font-size:13.5px;color:var(--ink);line-height:1.7;background:var(--violet-bg);border-radius:10px;padding:12px;border-left:3px solid var(--violet-l)}
.dec-foot{display:flex;align-items:center;justify-content:space-between;margin-top:12px}
.dec-impact{font-size:12px;color:var(--green);font-weight:600}
.conf-ring{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-3)}
.conf-val{font-weight:900;color:var(--violet-d);font-size:16px}

/* RPA robots */
.robot-card{display:flex;gap:14px;align-items:center;padding:16px;border-bottom:1px solid #f4f1fb}
.robot-card:last-child{border:none}
.robot-ava{width:46px;height:46px;border-radius:13px;background:linear-gradient(135deg,var(--violet-ll),var(--violet-d));display:grid;place-items:center;font-size:22px;flex-shrink:0}
.robot-info{flex:1}
.robot-info h4{font-size:14.5px}
.robot-info p{font-size:12px;color:var(--ink-3);margin-top:2px}
.robot-stats{text-align:right;font-size:12px}
.robot-stats b{color:var(--violet-d)}
/* RPA log stream */
.log-stream{height:300px;overflow:hidden;background:#1a1033;border-radius:12px;padding:14px;font-family:"SF Mono",Consolas,monospace;font-size:12.5px;position:relative}
.log-line{color:#c3bbe0;padding:5px 0;border-bottom:1px solid rgba(167,139,250,.12);animation:logIn .4s}
.log-line .lt{color:#8b5cf6}.log-line .lg{color:#4ade80}
@keyframes logIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}

/* knowledge */
.kn-item{display:flex;align-items:center;gap:14px;padding:15px;border-bottom:1px solid #f4f1fb;transition:.15s;cursor:pointer}
.kn-item:hover{background:var(--violet-bg)}
.kn-item:last-child{border:none}
.kn-ico{width:42px;height:42px;border-radius:11px;background:var(--violet-bg2);display:grid;place-items:center;font-size:20px;flex-shrink:0}
.kn-main{flex:1;min-width:0}
.kn-title{font-weight:700;font-size:14.5px}
.kn-meta{font-size:12px;color:var(--ink-3);margin-top:3px}
.kn-views{font-size:12px;color:var(--ink-3);white-space:nowrap}

/* ===== AI 助手（紫色主题） ===== */
.ai-fab{position:fixed;right:26px;bottom:26px;width:58px;height:58px;border-radius:50%;border:none;background:linear-gradient(135deg,var(--violet-l),var(--violet-d));color:#fff;font-size:26px;cursor:pointer;box-shadow:0 10px 28px rgba(124,58,237,.5);z-index:60;transition:.2s}
.ai-fab:hover{transform:scale(1.08) rotate(8deg)}
.assistant-wrap{display:flex;flex-direction:column;height:calc(100vh - 62px - 48px);max-width:920px;margin:0 auto}
.chat-scroll{flex:1;overflow-y:auto;padding:8px 4px 16px;display:flex;flex-direction:column;gap:18px}
.chat-msg{display:flex;gap:12px;max-width:88%}
.chat-msg.user{align-self:flex-end;flex-direction:row-reverse}
.cm-avatar{width:36px;height:36px;border-radius:11px;flex-shrink:0;display:grid;place-items:center;font-size:18px}
.cm-avatar.ai{background:linear-gradient(135deg,var(--violet-l),var(--violet-d));color:#fff}
.cm-avatar.me{background:#e6e1f5}
.cm-bubble{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;font-size:14.5px;line-height:1.75;box-shadow:var(--shadow-sm);overflow-wrap:anywhere}
.chat-msg.user .cm-bubble{background:linear-gradient(135deg,var(--violet-l),var(--violet-d));color:#fff;border:none}
.chat-msg.user .cm-bubble *{color:#fff!important}
.cm-bubble h1{font-size:19px;margin:10px 0 8px;font-weight:800}
.cm-bubble h2{font-size:16.5px;margin:10px 0 7px;font-weight:800}
.cm-bubble h3{font-size:15px;margin:9px 0 6px;font-weight:800}
.cm-bubble p{margin:6px 0}
.cm-bubble ul,.cm-bubble ol{margin:6px 0 6px 22px}
.cm-bubble li{margin:3px 0}
.cm-bubble strong{font-weight:800;color:var(--violet-d)}
.chat-msg.user .cm-bubble strong{color:#fff!important;text-decoration:underline}
.cm-bubble code{background:#efeafc;padding:1px 6px;border-radius:5px;font-size:13px;font-family:"SF Mono",Consolas,monospace;color:#6d28d9}
.cm-bubble pre{background:#1a1033;color:#e8e0fb;padding:14px;border-radius:10px;overflow-x:auto;margin:8px 0}
.cm-bubble pre code{background:none;color:#e8e0fb;padding:0}
.cm-bubble blockquote{border-left:3px solid var(--violet-ll);padding-left:12px;color:var(--ink-2);margin:8px 0}
.cm-bubble table{font-size:13px;margin:8px 0;border-collapse:collapse}
.cm-bubble th,.cm-bubble td{border:1px solid var(--line);padding:6px 10px}
.cm-bubble th{background:var(--violet-bg)}
.cm-bubble a{color:var(--violet-d);text-decoration:underline}
.cm-bubble hr{border:none;border-top:1px solid var(--line);margin:10px 0}
.typing{display:inline-flex;gap:4px;align-items:center}
.typing i{width:7px;height:7px;background:var(--violet-ll);border-radius:50%;animation:typing 1.2s infinite}
.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}
@keyframes typing{0%,60%,100%{transform:translateY(0);opacity:.4}30%{transform:translateY(-5px);opacity:1}}
.suggest-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.suggest-chip{background:#fff;border:1px solid var(--line);border-radius:20px;padding:8px 15px;font-size:13px;cursor:pointer;transition:.18s;color:var(--ink-2)}
.suggest-chip:hover{border-color:var(--violet-ll);color:var(--violet-d);background:var(--violet-bg)}
.chat-input{display:flex;gap:10px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-sm)}
.chat-input textarea{flex:1;border:none;resize:none;font-size:14.5px;font-family:inherit;line-height:1.5;max-height:120px;background:none}
.chat-input textarea:focus{outline:none}
.send-btn{width:42px;height:42px;border-radius:11px;border:none;background:linear-gradient(135deg,var(--violet-l),var(--violet-d));color:#fff;font-size:18px;cursor:pointer;align-self:flex-end;transition:.18s}
.send-btn:hover{transform:scale(1.05)}.send-btn:disabled{opacity:.5;cursor:not-allowed}
.ai-hero{text-align:center;padding:24px 0 14px}
.ai-hero .big{font-size:24px;font-weight:900}
.ai-hero .sub{color:var(--ink-3);font-size:14px;margin-top:6px}
.ai-hero .ai-logo{width:64px;height:64px;border-radius:18px;background:linear-gradient(135deg,var(--violet-l),var(--violet-d));display:grid;place-items:center;font-size:32px;margin:0 auto 14px;box-shadow:0 10px 26px rgba(124,58,237,.45)}
.ai-drawer{position:fixed;right:26px;bottom:96px;width:400px;max-width:calc(100vw - 40px);height:560px;max-height:calc(100vh - 130px);background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 24px 60px rgba(30,27,46,.22);z-index:61;display:none;flex-direction:column;overflow:hidden}
.ai-drawer.open{display:flex;animation:slideUp .25s}
@keyframes slideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
.drawer-head{background:linear-gradient(135deg,var(--violet-l),var(--violet-d));color:#fff;padding:14px 18px;display:flex;align-items:center;gap:10px;font-weight:800}
.drawer-head .dh-close{margin-left:auto;cursor:pointer;font-size:20px;opacity:.9}
.drawer-body{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:14px;background:var(--bg)}
.drawer-foot{padding:10px;border-top:1px solid var(--line)}
.drawer-foot .chat-input{box-shadow:none;border-radius:13px}

.fade-in{animation:fadeIn .4s}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

@media(max-width:880px){
  .sidebar{transform:translateX(-100%);transition:.25s;box-shadow:0 0 40px rgba(0,0,0,.3)}
  .sidebar.open{transform:none}
  .main{margin-left:0}
  .hamburger{display:block}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .u-name{display:none}
}
@media(max-width:520px){
  .grid-4{grid-template-columns:1fr}.content{padding:16px}
  .ai-drawer{right:10px;left:10px;width:auto}
}