:root{
  --bg:#f5f6f8; --panel:#ffffff; --panel-2:#f0f2f5; --text:#1f2329; --muted:#8a8f99;
  --line:#e5e7eb; --brand:#2f6bff; --brand-2:#1b4fd6; --ok:#16a34a; --warn:#d97706; --err:#dc2626;
  --radius:10px; --shadow:0 2px 10px rgba(0,0,0,.06);
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);font-size:14px}
button{font-family:inherit;cursor:pointer}
.btn{background:var(--brand);color:#fff;border:none;padding:8px 14px;border-radius:8px;font-size:13px}
.btn:hover{background:var(--brand-2)}
.btn.ghost{background:#fff;color:var(--text);border:1px solid var(--line)}
.btn.sm{padding:5px 10px;font-size:12px}
.btn.danger{background:#fff;color:var(--err);border:1px solid var(--err)}
.input,.select,.textarea{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text);font-size:13px;font-family:inherit}
.textarea{resize:vertical;min-height:80px;line-height:1.5}
label{display:block;font-size:12px;color:var(--muted);margin:10px 0 4px}
.row{display:flex;gap:10px}.row>*{flex:1}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.tag{display:inline-block;font-size:11px;padding:2px 8px;border-radius:20px;background:var(--panel-2);color:var(--muted)}
.tag.chat{background:#e7f0ff;color:var(--brand)}
.tag.vision{background:#e9f7ef;color:var(--ok)}
.tag.video{background:#fdeef0;color:var(--err)}
.muted{color:var(--muted)}
.err{color:var(--err)}.ok{color:var(--ok)}

/* 登录 */
.login-wrap{height:100vh;display:flex;align-items:center;justify-content:center}
.login-card{width:360px;padding:28px}
.login-card h1{margin:0 0 4px;font-size:20px}
.login-card .sub{color:var(--muted);margin-bottom:18px}

/* 布局 */
.topbar{height:52px;background:var(--panel);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 16px;gap:14px;position:sticky;top:0;z-index:10}
.topbar .logo{font-weight:700;color:var(--brand)}
.topbar .spacer{flex:1}
.layout{display:flex;height:calc(100vh - 52px)}
.sidebar{width:200px;background:var(--panel);border-right:1px solid var(--line);padding:10px;overflow:auto}
.sidebar .nav-item{padding:9px 12px;border-radius:8px;margin-bottom:4px;cursor:pointer;color:var(--text)}
.sidebar .nav-item:hover{background:var(--panel-2)}
.sidebar .nav-item.active{background:var(--brand);color:#fff}
.main{flex:1;overflow:auto;padding:18px}
.page{display:none}.page.active{display:block}
.page h2{margin:0 0 14px;font-size:17px}

/* 表格 */
table{width:100%;border-collapse:collapse;background:var(--panel);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);font-size:13px}
th{background:var(--panel-2);color:var(--muted);font-weight:600}
tr:last-child td{border-bottom:none}
.actions{display:flex;gap:6px;flex-wrap:wrap}

/* 对话 */
.chat-shell{display:flex;height:calc(100vh - 52px)}
.chat-list{width:240px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column}
.chat-list .hd{padding:12px;border-bottom:1px solid var(--line);display:flex;gap:8px}
.chat-list .items{overflow:auto;flex:1}
.chat-item{padding:11px 12px;border-bottom:1px solid var(--line);cursor:pointer}
.chat-item:hover{background:var(--panel-2)}
.chat-item.active{background:#e7f0ff}
.chat-item .nm{font-weight:600}
.chat-item .ds{font-size:11px;color:var(--muted);margin-top:2px}
.chat-main{flex:1;display:flex;flex-direction:column;background:var(--bg)}
.chat-head{padding:12px 16px;border-bottom:1px solid var(--line);background:var(--panel);display:flex;align-items:center;gap:10px}
.chat-box{flex:1;overflow:auto;padding:18px;display:flex;flex-direction:column;gap:14px}
.msg{max-width:78%;padding:10px 13px;border-radius:12px;line-height:1.6;white-space:pre-wrap;word-break:break-word}
.msg.user{align-self:flex-end;background:var(--brand);color:#fff;border-bottom-right-radius:3px}
.msg.bot{align-self:flex-start;background:var(--panel);border:1px solid var(--line);border-bottom-left-radius:3px}
.msg .copy{float:right;margin:0 0 0 10px;font-size:11px;color:var(--muted);cursor:pointer}
.chat-input{border-top:1px solid var(--line);background:var(--panel);padding:12px;display:flex;gap:10px;align-items:flex-end}
.chat-input .ta{flex:1}
.chat-input textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:10px;resize:none;height:52px;font-family:inherit;font-size:14px}
.chips{display:flex;gap:8px;flex-wrap:wrap;padding:0 16px 8px}
.chip{background:#e7f0ff;color:var(--brand);border:1px solid #cfe0ff;padding:5px 11px;border-radius:18px;font-size:12px;cursor:pointer}
.chip:hover{background:#d6e4ff}
.imgprev{display:inline-block;max-width:120px;max-height:120px;border-radius:8px;border:1px solid var(--line);margin-top:6px}

/* modal */
.modal-bg{position:fixed;inset:0;background:rgba(0,0,0,.4);display:none;align-items:center;justify-content:center;z-index:50}
.modal-bg.show{display:flex}
.modal{width:560px;max-width:92vw;max-height:88vh;overflow:auto;padding:22px;background:#fff;border-radius:12px}
.modal h3{margin:0 0 12px}
.modal .foot{display:flex;justify-content:flex-end;gap:10px;margin-top:16px}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#1f2329;color:#fff;padding:10px 16px;border-radius:8px;font-size:13px;z-index:99;opacity:0;transition:.2s}
.toast.show{opacity:1}
.share-link{font-size:12px;background:var(--panel-2);padding:8px 10px;border-radius:8px;word-break:break-all;border:1px solid var(--line)}
.kpi{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.kpi .box{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:12px 16px;min-width:130px}
.kpi .n{font-size:22px;font-weight:700}.kpi .t{font-size:12px;color:var(--muted)}
.hidden{display:none!important}

/* 顶部栏（Workparty 风格）*/
.topbar .sysname{font-weight:700;font-size:15px}
.topbar .sysname small{display:block;font-size:11px;color:var(--muted);font-weight:400}
.topbar .tb-btn{background:#fff;border:1px solid var(--line);padding:6px 12px;border-radius:8px;font-size:13px;cursor:pointer}
.topbar .tb-btn:hover{border-color:var(--brand);color:var(--brand)}

/* 左侧固定菜单 */
.sidebar{width:208px}
.nav-item{display:flex;align-items:center;gap:10px;font-size:14px}
.nav-item .ico{width:20px;text-align:center}

/* 预设厂商条 */
.preset-bar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.preset{flex:0 0 auto;background:#fff;border:1px solid var(--line);border-radius:20px;padding:5px 13px;font-size:12px;cursor:pointer}
.preset:hover{border-color:var(--brand);color:var(--brand)}

/* 筛选行 */
.filterbar{display:flex;gap:10px;align-items:center;margin-bottom:14px;flex-wrap:wrap}

/* 对话抽屉 */
.drawer-bg{position:fixed;inset:0;background:rgba(0,0,0,.25);display:none;z-index:60}
.drawer-bg.show{display:block}
.drawer{position:fixed;top:0;right:0;height:100vh;width:460px;max-width:96vw;background:var(--panel);box-shadow:-4px 0 20px rgba(0,0,0,.12);transform:translateX(100%);transition:.22s;z-index:61;display:flex;flex-direction:column}
.drawer.show{transform:translateX(0)}
.drawer .d-head{padding:13px 16px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px}
.drawer .d-head .x{margin-left:auto;cursor:pointer;color:var(--muted);font-size:18px}
.drawer .chat-box{flex:1}
.drawer .chat-input{border-top:1px solid var(--line)}

/* 头像 */
.avatar{width:34px;height:34px;border-radius:8px;background:var(--brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px;object-fit:cover}
.avatar.sm{width:28px;height:28px;font-size:13px}

/* 信息栅格 */
.info-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;max-width:560px}
.info-grid .it{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:12px 14px}
.info-grid .it .v{font-size:18px;font-weight:700}.info-grid .it .k{font-size:12px;color:var(--muted);margin-top:2px}
.muted-box{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:14px;max-width:560px}
.pw-row{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap}