/* ============================================================
   DSH 客户对话端 · 设计原型
   视觉基调参考 OneOpenAI/LiaryAI：浅底点阵、靛蓝→紫渐变、圆角卡片
   ============================================================ */
:root{
  /* 蓝 · 白 · 黑。单色相，不用渐变，不用第二强调色 */
  --bg:#f7f8fa;
  --grid:rgba(37,99,235,.07);
  --surface:#ffffff;
  --surface-alt:#fafbfc;
  --surface-tint:#f1f4f9;
  --line:#e9ecf1;
  --line-strong:#d8dce4;
  --ink:#111318;
  --ink-2:#545b66;
  --ink-3:#878e9a;
  --brand:#2563eb;
  --brand-deep:#1d4ed8;
  --brand-soft:#eff4ff;
  --brand-line:#d6e2fb;
  --ok:#1d4ed8;
  --ok-soft:#eff4ff;
  --warn:#545b66;
  --warn-soft:#f1f4f9;
  --danger:#111318;
  --danger-soft:#eef1f5;
  --grad:#2563eb;
  --grad-soft:#eff4ff;
  --r-xl:20px; --r-lg:16px; --r:12px; --r-sm:9px;
  --sh-1:0 1px 2px rgba(17,19,24,.04), 0 8px 24px -20px rgba(17,19,24,.16);
  --sh-2:0 18px 44px -26px rgba(17,19,24,.26), 0 2px 6px rgba(17,19,24,.04);
  --font:"Inter","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"SF Mono",ui-monospace,"JetBrains Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font-family:var(--font); color:var(--ink); font-size:14px; line-height:1.6;
  background-color:var(--bg);
  background-image:radial-gradient(circle at 1px 1px, var(--grid) 1px, transparent 0);
  background-size:26px 26px;
  -webkit-font-smoothing:antialiased;
  overflow:hidden;
}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,textarea{font:inherit;color:inherit}
textarea{resize:none}
h1,h2,h3,h4,p{margin:0;font-weight:inherit}
::selection{background:rgba(37,99,235,.18)}
*{scrollbar-width:thin;scrollbar-color:#d9dde5 transparent}
*::-webkit-scrollbar{width:9px;height:9px}
*::-webkit-scrollbar-thumb{background:#d9dde5;border-radius:9px;border:3px solid transparent;background-clip:content-box}
*::-webkit-scrollbar-thumb:hover{background:#c4c9d3;background-clip:content-box}

/* ------------------------------------------------------------ 登录页 */
.login{
  position:fixed; inset:0; display:grid; place-items:center; z-index:60;
  background:radial-gradient(900px 470px at 8% -12%, rgba(37,99,235,.10), transparent 62%),
             radial-gradient(760px 460px at 102% 110%, rgba(17,19,24,.05), transparent 60%),
             var(--bg);
  transition:opacity .32s ease, visibility .32s;
}
.login.hide{opacity:0;visibility:hidden;pointer-events:none}
.login-card{
  width:min(400px, calc(100vw - 40px)); background:rgba(255,255,255,.88);
  backdrop-filter:blur(10px); border:1px solid #fff; border-radius:24px;
  box-shadow:0 32px 80px -40px rgba(17,19,24,.5), 0 2px 10px rgba(17,19,24,.04);
  padding:34px 32px 28px;
}
.login-mark{display:flex;align-items:center;gap:11px;margin-bottom:26px}
.login-mark .lg{width:38px;height:38px;border-radius:11px;background:var(--grad);display:grid;place-items:center;color:#fff;font-weight:700;font-size:15px;box-shadow:0 8px 18px -8px rgba(29,78,216,.7)}
.login-mark b{font-size:15px;font-weight:650;letter-spacing:.2px}
.login-mark span{display:block;font-size:11.5px;color:var(--ink-3);letter-spacing:.3px}
.login h1{font-size:23px;font-weight:650;letter-spacing:-.4px;margin-bottom:6px}
.login .sub{color:var(--ink-3);font-size:13px;margin-bottom:22px}
.field{margin-bottom:13px}
.field label{display:block;font-size:12px;color:var(--ink-2);margin-bottom:6px}
.field input{
  width:100%;height:42px;border:1px solid var(--line-strong);border-radius:11px;
  padding:0 13px;background:#fff;outline:none;transition:border-color .16s, box-shadow .16s;
}
.field input:focus{border-color:#9dbcf5;box-shadow:0 0 0 4px rgba(37,99,235,.12)}
.login-err{display:none;margin:2px 0 10px;padding:8px 11px;border-radius:9px;background:#fdf0f0;border:1px solid #f6d7d7;color:#b4262b;font-size:11.8px;line-height:1.55;word-break:break-word}
.login-err.on{display:block}
.login-btn{
  width:100%;height:44px;margin-top:8px;border-radius:12px;color:#fff;font-weight:600;
  background:var(--grad);box-shadow:0 14px 26px -14px rgba(29,78,216,.75);
  transition:transform .16s ease, box-shadow .16s ease;
}
.login-btn:hover{transform:translateY(-1px);box-shadow:0 18px 32px -14px rgba(29,78,216,.85)}
.login-foot{margin-top:18px;font-size:11.5px;color:var(--ink-3);text-align:center;line-height:1.7}

/* ------------------------------------------------------------ 骨架 */
.shell{display:grid;grid-template-columns:266px minmax(0,1fr);height:100vh;height:100dvh;overflow:hidden}
.shell.ready{animation:shellIn .4s cubic-bezier(.2,.8,.2,1) both}
@keyframes shellIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ------------------------------------------------------------ 侧栏 */
.side{
  display:flex;flex-direction:column;min-height:0;
  background:linear-gradient(180deg,rgba(250,251,252,.96),rgba(248,249,251,.9));
  backdrop-filter:blur(8px);
  border-right:1px solid var(--line);
}
.side-top{padding:16px 14px 10px}
.brand{display:flex;align-items:center;gap:10px;padding:4px 4px 16px}
.brand .lg{width:34px;height:34px;border-radius:10px;background:var(--grad);display:grid;place-items:center;color:#fff;font-weight:700;font-size:13px;letter-spacing:.2px;box-shadow:0 8px 18px -9px rgba(29,78,216,.8)}
.brand-name{font-size:14px;font-weight:650;letter-spacing:.2px;line-height:1.25}
.brand-sub{font-size:11px;color:var(--ink-3);letter-spacing:.2px}

.new-chat{
  width:100%;height:40px;border-radius:12px;display:flex;align-items:center;gap:8px;justify-content:center;
  color:#fff;font-weight:600;font-size:13.5px;background:var(--grad);
  box-shadow:0 12px 24px -14px rgba(29,78,216,.8);
  transition:transform .16s ease, box-shadow .16s ease;
}
.new-chat:hover{transform:translateY(-1px);box-shadow:0 16px 28px -14px rgba(29,78,216,.9)}
.new-chat:active{transform:none}

.conv-scroll{flex:1;min-height:0;overflow-y:auto;padding:6px 10px 8px}
.conv-group{padding:12px 6px 4px;font-size:11px;color:var(--ink-3);letter-spacing:.4px}
.conv{
  display:flex;align-items:center;gap:8px;width:100%;text-align:left;
  padding:8px 10px;border-radius:10px;color:var(--ink-2);font-size:13px;
  transition:background .14s, color .14s;
}
.conv:hover{background:rgba(37,99,235,.07);color:var(--ink)}
.conv .txt{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.conv .more{opacity:0;flex:none;width:22px;height:22px;border-radius:6px;display:grid;place-items:center;color:var(--ink-3)}
.conv:hover .more{opacity:1}
.conv .more:hover{background:rgba(17,19,24,.07);color:var(--ink)}
.conv.on{background:#fff;color:var(--ink);box-shadow:0 1px 2px rgba(17,19,24,.05), 0 0 0 1px var(--line);font-weight:550}
.conv.on .txt{font-weight:550}

.side-foot{padding:10px;border-top:1px solid var(--line)}
.me{display:flex;align-items:center;gap:9px;padding:7px 8px;border-radius:12px;width:100%;text-align:left;transition:background .14s}
.me:hover{background:rgba(37,99,235,.07)}
.av{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:600;color:#fff;flex:none;background:#111318}
.me-name{font-size:13px;font-weight:550;line-height:1.3}
.me-sub{font-size:11px;color:var(--ink-3)}

/* ------------------------------------------------------------ 主区 */
.main{display:flex;flex-direction:column;min-width:0;min-height:0;position:relative}
.topbar{
  height:58px;flex:none;display:flex;align-items:center;gap:12px;padding:0 22px;
  border-bottom:1px solid rgba(234,234,246,.9);background:rgba(255,255,255,.72);backdrop-filter:blur(12px);
  position:relative;z-index:5;
}
.top-agent{display:flex;align-items:center;gap:10px;min-width:0;flex:none}
.av-agent{width:32px;height:32px;border-radius:11px;background:var(--grad);display:grid;place-items:center;color:#fff;font-weight:650;font-size:13px;box-shadow:0 6px 14px -8px rgba(29,78,216,.85);position:relative;flex:none}
.av-agent::after{content:"";position:absolute;right:-1.5px;bottom:-1.5px;width:8px;height:8px;border-radius:50%;background:#111318;border:2px solid #fff}
.top-name{font-size:14px;font-weight:600;letter-spacing:.1px;line-height:1.25;white-space:nowrap}
.top-meta{display:flex;align-items:center;gap:6px;font-size:11.5px;color:var(--ink-3);white-space:nowrap;min-width:0}
.top-meta>span:first-child{overflow:hidden;text-overflow:ellipsis}
.persona-chip{
  white-space:nowrap;flex:none;display:inline-flex;align-items:center;gap:4px;padding:1px 8px;border-radius:999px;
  background:var(--brand-soft);color:#1d4ed8;font-size:11px;font-weight:550;border:1px solid var(--brand-line);
  cursor:pointer;transition:background .14s;
}
.persona-chip:hover{background:#e4edff}
.spacer{flex:1}
.tbtn{
  height:32px;padding:0 11px;border-radius:9px;display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;color:var(--ink-2);border:1px solid var(--line-strong);background:#fff;
  white-space:nowrap;flex:none;
  transition:border-color .14s, color .14s, box-shadow .14s;
}
.tbtn:hover{border-color:#c4cee0;color:var(--ink);box-shadow:0 1px 3px rgba(17,19,24,.06)}
.tbtn.solid{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 8px 18px -12px rgba(29,78,216,.9)}
.tbtn.solid:hover{color:#fff;box-shadow:0 10px 22px -12px rgba(29,78,216,1)}
.icon-only{width:32px;padding:0;justify-content:center}

.preview-bar{flex:none;display:flex;align-items:center;gap:7px;padding:7px 22px;font-size:11.8px;color:#4b5563;background:#f6f8fc;border-bottom:1px solid var(--line)}
.preview-bar[hidden]{display:none}
.preview-bar button{margin-left:auto;font-size:11.8px;color:var(--brand-deep);border:0;background:none;cursor:pointer}
.preview-bar button:hover{text-decoration:underline}

/* ------------------------------------------------------------ 对话流 */
.stream{flex:1;min-height:0;overflow-y:auto;scroll-behavior:smooth}
.stream.is-empty{display:flex}
.stream.is-empty .stream-inner{width:100%;margin:auto}
.stream-inner{max-width:772px;margin:0 auto;padding:26px 24px 20px}

.welcome{padding:34px 0 10px;text-align:center;animation:fadeUp .5s cubic-bezier(.2,.8,.2,1) both}
.welcome .halo{position:relative;width:70px;height:70px;margin:0 auto 16px}
.welcome .halo::before{content:"";position:absolute;inset:-14px;border-radius:50%;background:var(--grad);filter:blur(20px);opacity:.22}
.welcome .face{position:relative;width:70px;height:70px;border-radius:22px;background:var(--grad);display:grid;place-items:center;color:#fff;font-size:25px;font-weight:650;box-shadow:0 18px 34px -18px rgba(29,78,216,.9)}
.welcome h1{font-size:25px;font-weight:650;letter-spacing:-.5px;margin-bottom:7px}
.welcome .lead{font-size:13.5px;color:var(--ink-2);max-width:470px;margin:0 auto}
.welcome .lead b{color:#1d4ed8;font-weight:600}
.suggests{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:26px auto 0;max-width:640px;text-align:left}
.sg{
  display:flex;gap:10px;align-items:flex-start;padding:12px 13px;border-radius:14px;background:rgba(255,255,255,.9);
  border:1px solid var(--line);transition:.16s ease;text-align:left;
}
.sg:hover{border-color:#c3d0ea;background:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -18px rgba(17,19,24,.5)}
.sg-ico{width:28px;height:28px;margin-top:1px;border-radius:9px;flex:none;display:grid;place-items:center;background:var(--brand-soft);color:#2563eb}
.sg-t{display:block;font-size:12.8px;font-weight:550;line-height:1.4}
.sg-d{display:block;font-size:11.5px;color:var(--ink-3);line-height:1.45;margin-top:2px}

.msg{display:flex;gap:12px;margin-bottom:22px;animation:fadeUp .32s cubic-bezier(.2,.8,.2,1) both}
.msg.user{flex-direction:row-reverse}
.msg .avatar{width:30px;height:30px;border-radius:10px;flex:none;display:grid;place-items:center;font-size:12px;font-weight:650;color:#fff;margin-top:2px}
.msg .avatar.a{background:var(--grad);box-shadow:0 6px 14px -9px rgba(29,78,216,.9)}
.msg .avatar.u{background:#e6e9f0;color:#3f4652}
.bubble{max-width:calc(100% - 46px);min-width:0}
.msg.user .bubble{
  background:#eaf1ff;border:1px solid #d5e2fb;color:#1b1f27;
  padding:11px 15px;border-radius:16px 16px 5px 16px;word-break:break-word;
}
.msg.user .body{white-space:pre-wrap}
.msg .body{min-width:0}
.msg.assistant .bubble{background:#fff;border:1px solid var(--line);border-radius:16px 16px 16px 5px;padding:14px 17px;box-shadow:var(--sh-1)}
.msg-actions{display:flex;gap:2px;margin-top:7px;opacity:.4;transition:opacity .16s}
.msg:hover .msg-actions{opacity:1}
.act{width:26px;height:26px;border-radius:7px;display:grid;place-items:center;color:var(--ink-3);transition:.14s}
.act:hover{background:var(--surface-tint);color:var(--ink)}
.act.on{color:#2563eb;background:var(--brand-soft)}
.msg-time{font-size:10.5px;color:#a8aeb9;margin-top:5px}

.typing{display:inline-flex;gap:4px;align-items:center;padding:3px 2px}
.typing i{width:6px;height:6px;border-radius:50%;background:#c6ccd8;display:block;animation:bounce 1.1s infinite}
.typing i:nth-child(2){animation-delay:.14s}
.typing i:nth-child(3){animation-delay:.28s}
@keyframes bounce{0%,60%,100%{transform:translateY(0);opacity:.5}30%{transform:translateY(-4px);opacity:1}}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

.divider{display:flex;align-items:center;gap:10px;margin:20px 0;color:var(--ink-3);font-size:11px}
.divider::before,.divider::after{content:"";height:1px;flex:1;background:linear-gradient(90deg,transparent,var(--line-strong),transparent)}
.divider span{display:inline-flex;align-items:center;gap:5px;padding:2px 10px;border-radius:999px;background:rgba(255,255,255,.8);border:1px solid var(--line)}

/* 正文排版 */
.md>*:first-child{margin-top:0}
.md>*:last-child{margin-bottom:0}
.md p{margin:0 0 9px}
.md h3{font-size:14.5px;font-weight:650;margin:14px 0 7px}
.md h4{font-size:13.5px;font-weight:600;margin:12px 0 6px}
.md ul,.md ol{margin:0 0 9px;padding-left:19px}
.md ul{list-style:disc}
.md ol{list-style:decimal}
.md li{margin:3px 0}
.md li::marker{color:#a0a6b1}
.md strong{font-weight:650;color:#151a2c}
.md code{font-family:var(--mono);font-size:12px;background:#f4f6fa;border:1px solid var(--line);border-radius:5px;padding:1px 5px}
.md mark{background:linear-gradient(180deg,transparent 58%,rgba(37,99,235,.18) 0);padding:0 1px}

.evidence{margin-top:12px;padding-top:10px;border-top:1px dashed var(--line)}
.ev-head{display:flex;align-items:center;gap:6px;font-size:11.5px;color:var(--ink-3);cursor:pointer;user-select:none;padding:2px 0}
.ev-head b{font-weight:600;color:var(--ink-2)}
.ev-head .ev-hint{color:var(--ink-3)}
.ev-chev{margin-left:auto;color:var(--ink-3);transition:transform .18s;flex:none}
.evidence.closed .ev-chev{transform:rotate(-90deg)}
.ev-body{display:flex;flex-direction:column;gap:6px;margin-top:8px}
.evidence.closed .ev-body{display:none}
.ev-item{border:1px solid var(--line);border-radius:10px;background:var(--surface-alt);padding:8px 10px;transition:border-color .14s}
.ev-item:hover{border-color:var(--brand-line)}
.ev-top{display:flex;align-items:center;gap:6px;font-size:11.5px;min-width:0}
.ev-idx{width:16px;height:16px;border-radius:4px;background:#fff;border:1px solid var(--line-strong);display:grid;place-items:center;font-size:9.5px;font-weight:600;color:var(--brand);flex:none}
.ev-name{font-weight:550;color:var(--ink-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.ev-sec{color:var(--ink-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:42%;flex:none}
.ev-score{margin-left:auto;font-size:10.5px;color:var(--ink-3);font-variant-numeric:tabular-nums;flex:none}
.ev-text{margin-top:5px;font-size:12px;line-height:1.62;color:var(--ink-2);white-space:pre-wrap;word-break:break-word;cursor:pointer;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.ev-text.open{display:block;overflow:visible}
.ev-text.empty{color:var(--ink-3);font-style:italic;cursor:default}

/* ------------------------------------------------------------ 输入区 */
.composer-wrap{flex:none;padding:0 24px 14px;background:linear-gradient(180deg,rgba(247,248,250,0),rgba(247,248,250,.94) 28%)}
.composer{max-width:772px;margin:0 auto}
.composer-box{
  background:#fff;border:1px solid var(--line-strong);border-radius:18px;
  box-shadow:0 14px 34px -26px rgba(17,19,24,.55);
  transition:border-color .18s, box-shadow .18s;
}
.composer-box:focus-within{border-color:#9dbcf5;box-shadow:0 0 0 4px rgba(37,99,235,.09), 0 16px 36px -26px rgba(17,19,24,.6)}
.composer textarea{
  display:block;width:100%;border:0;outline:0;background:transparent;padding:14px 16px 2px;
  min-height:52px;max-height:200px;font-size:14px;line-height:1.65;
}
.composer textarea::placeholder{color:#9aa1ad}
.composer-bar{display:flex;align-items:center;gap:7px;padding:6px 9px 9px 12px}
.chip-toggle{
  display:inline-flex;align-items:center;gap:5px;height:28px;padding:0 10px;border-radius:999px;
  font-size:12px;color:var(--ink-2);border:1px solid #d3dae5;background:#fcfcfd;transition:.14s;
}
.chip-toggle svg{color:#8f96a2}
.chip-toggle:hover{border-color:#cfd0ee;color:var(--ink)}
.chip-toggle.on{background:var(--brand-soft);border-color:var(--brand-line);color:#1d4ed8}
.chip-toggle.on svg{color:#2563eb}
.send{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;color:#fff;background:var(--grad);
  box-shadow:0 10px 20px -12px rgba(29,78,216,.95);transition:.16s;
}
.send:disabled{background:#e2e3ee;box-shadow:none;color:#b3b7c9;cursor:not-allowed}
.send:not(:disabled):hover{transform:translateY(-1px)}
.composer-hint{text-align:center;font-size:11px;color:#9aa1ad;margin-top:9px;line-height:1.6}
.composer-hint b{font-weight:500;color:#878e9a}

/* ------------------------------------------------------------ 设置抽屉 */
.mask{position:fixed;inset:0;background:rgba(24,26,42,.28);backdrop-filter:blur(2px);opacity:0;visibility:hidden;transition:.24s;z-index:40}
.mask.on{opacity:1;visibility:visible}
.sheet{
  position:fixed;top:0;right:0;bottom:0;width:min(520px,100vw);background:#fff;z-index:41;
  display:flex;flex-direction:column;
  box-shadow:-30px 0 80px -40px rgba(17,19,24,.4);
  transform:translateX(102%);transition:transform .34s cubic-bezier(.2,.8,.2,1);
}
.sheet.on{transform:none}
.sheet-head{padding:18px 20px 0;flex:none}
.sheet-title{display:flex;align-items:center;gap:8px}
.sheet-title h2{font-size:16.5px;font-weight:650;letter-spacing:-.2px;flex:1}
.close{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;color:var(--ink-3);transition:.14s}
.close:hover{background:var(--surface-tint);color:var(--ink)}
.sheet-sub{font-size:12px;color:var(--ink-3);margin-top:3px}
.tabs{display:flex;gap:2px;margin-top:14px;border-bottom:1px solid var(--line)}
.tab{position:relative;padding:9px 12px 11px;font-size:13px;color:var(--ink-3);font-weight:500;transition:color .14s}
.tab:hover{color:var(--ink-2)}
.tab.on{color:var(--ink);font-weight:600}
.tab.on::after{content:"";position:absolute;left:10px;right:10px;bottom:-1px;height:2px;border-radius:2px;background:var(--grad)}
.sheet-body{flex:1;min-height:0;overflow-y:auto;padding:18px 20px 8px}
.sheet-foot{flex:none;padding:12px 20px;border-top:1px solid var(--line);display:flex;align-items:center;gap:9px;background:#fff}
.sheet-foot .note{flex:1;font-size:11px;color:var(--ink-3)}

.btn{height:34px;padding:0 15px;border-radius:10px;font-size:13px;font-weight:550;display:inline-flex;align-items:center;justify-content:center;gap:6px;transition:.14s}
.btn.primary{color:#fff;background:var(--grad);box-shadow:0 10px 20px -14px rgba(29,78,216,.9)}
.btn.primary:hover{box-shadow:0 12px 24px -12px rgba(29,78,216,1)}
.btn.ghost{color:var(--ink-2);border:1px solid var(--line-strong);background:#fff}
.btn.ghost:hover{border-color:#c4cee0;color:var(--ink)}
.btn.danger{color:var(--danger);border:1px solid #f6d4d6;background:#fff}
.btn.danger:hover{background:var(--danger-soft)}

.sec{margin-bottom:22px}
.sec-title{font-size:12.5px;font-weight:600;letter-spacing:.1px;margin-bottom:3px}
.sec-hint{font-size:11.5px;color:var(--ink-3);line-height:1.55;margin-bottom:11px}

/* 人设卡片 */
.personas{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.persona{
  position:relative;text-align:left;padding:11px 12px 10px;border-radius:13px;border:1px solid var(--line);
  background:#fff;transition:.16s ease;
}
.persona:hover{border-color:#c3d0ea;box-shadow:0 8px 18px -16px rgba(17,19,24,.55)}
.persona.on{border-color:#8fb1f2;background:#f6f9ff;box-shadow:0 0 0 3px rgba(37,99,235,.09)}
.persona .dot{width:22px;height:22px;border-radius:7px;margin-bottom:7px;display:grid;place-items:center;color:#fff}
.persona .pn{display:flex;align-items:center;gap:5px;font-size:13px;font-weight:600}
.persona .pd{display:block;font-size:11.2px;color:var(--ink-3);line-height:1.45;margin-top:3px;min-height:32px}
.persona .ps{display:block;font-size:11px;color:#6b7280;background:rgba(37,99,235,.055);border-radius:7px;padding:5px 7px;margin-top:7px;line-height:1.45;border:1px dashed rgba(37,99,235,.16)}
.persona .tick{position:absolute;top:9px;right:9px;width:16px;height:16px;border-radius:50%;background:var(--grad);display:none;place-items:center;color:#fff}
.persona.on .tick{display:grid}

/* 提示词 */
.prompt-box{border:1px solid var(--line-strong);border-radius:13px;overflow:hidden;background:#fff;transition:border-color .16s, box-shadow .16s}
.prompt-box:focus-within{border-color:#9dbcf5;box-shadow:0 0 0 4px rgba(37,99,235,.09)}
.prompt-box textarea{
  display:block;width:100%;border:0;outline:0;padding:12px 13px;min-height:172px;max-height:340px;
  font-family:var(--mono);font-size:12px;line-height:1.75;color:#1f242e;background:#fbfcfe;
}
.prompt-foot{display:flex;align-items:center;gap:8px;padding:7px 9px;border-top:1px solid var(--line);background:#fff}
.prompt-foot .count{font-size:11px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.prompt-foot .spacer{flex:1}
.mini{height:26px;padding:0 9px;border-radius:7px;font-size:11.5px;display:inline-flex;align-items:center;gap:4px;color:var(--ink-2);border:1px solid var(--line-strong);background:#fff}
.mini:hover{border-color:#c4cee0;color:var(--ink)}
.mini.plain{border-color:transparent;background:transparent}
.mini.plain:hover{background:var(--surface-tint)}

/* 知识库 */
.kb-card{border:1px solid var(--line);border-radius:14px;background:#fbfcfe;padding:12px 13px;margin-bottom:12px}
.kb-head{display:flex;align-items:center;gap:9px}
.kb-ico{width:30px;height:30px;border-radius:9px;background:var(--grad-soft);display:grid;place-items:center;color:#2563eb;flex:none;border:1px solid var(--brand-line)}
.kb-name{font-size:13px;font-weight:600;line-height:1.3}
.kb-meta{font-size:11.2px;color:var(--ink-3)}
.kb-stat{margin-left:auto;font-size:11px;color:var(--ink-3);font-variant-numeric:tabular-nums;text-align:right;line-height:1.4}
.kb-stat b{color:var(--ink);font-weight:600}

.drop{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  border:1px dashed #c9d6ef;border-radius:13px;background:rgba(37,99,235,.03);
  padding:16px 12px;transition:.16s;width:100%;
}
.drop:hover,.drop.over{background:rgba(37,99,235,.07);border-color:#8fb1f2}
.drop-t{font-size:12.5px;font-weight:550;color:#1d4ed8}
.drop-s{font-size:11px;color:var(--ink-3)}

.files{margin-top:12px;border:1px solid var(--line);border-radius:13px;overflow:hidden;background:#fff}
.file{display:flex;align-items:center;gap:10px;padding:10px 11px;border-bottom:1px solid var(--line);transition:background .14s}
.file:last-child{border-bottom:0}
.file:hover{background:#fbfcfe}
.f-ico{width:28px;height:28px;border-radius:8px;flex:none;display:grid;place-items:center;background:var(--surface-tint);color:#6b7280;font-size:9px;font-weight:700;letter-spacing:.3px}
.f-main{flex:1;min-width:0}
.f-name{font-size:12.5px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.f-meta{font-size:10.8px;color:var(--ink-3);margin-top:1px}
.tag{display:inline-flex;align-items:center;gap:4px;height:19px;padding:0 7px;border-radius:999px;font-size:10.5px;font-weight:500;flex:none}
.tag.ok{background:var(--ok-soft);color:var(--ok)}
.tag.warn{background:var(--warn-soft);color:var(--warn)}
.tag.off{background:#f1f3f7;color:#878e9a}
.f-acts{display:flex;gap:1px;flex:none;opacity:.45;transition:opacity .14s}
.file:hover .f-acts{opacity:1}
.fbtn{width:26px;height:26px;border-radius:7px;display:grid;place-items:center;color:var(--ink-3)}
.fbtn:hover{background:var(--surface-tint);color:var(--ink)}
.fbtn.del:hover{background:var(--danger-soft);color:var(--danger)}

/* 偏好 */
.row{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}
.row:last-child{border-bottom:0}
.row-main{flex:1;min-width:0}
.row-t{font-size:13px;font-weight:500}
.row-d{font-size:11.5px;color:var(--ink-3);margin-top:2px;line-height:1.5}
.row-ctl{flex:none;display:flex;align-items:center;gap:7px}
.seg{display:inline-flex;padding:2px;border-radius:9px;background:#f1f4f9;border:1px solid var(--line)}
.seg button{padding:4px 11px;border-radius:7px;font-size:12px;color:var(--ink-2);transition:.14s}
.seg button.on{background:#fff;color:var(--ink);font-weight:600;box-shadow:0 1px 3px rgba(17,19,24,.08)}
.switch{width:40px;height:23px;border-radius:999px;background:#dfe3ea;position:relative;transition:background .2s;flex:none}
.switch::after{content:"";position:absolute;top:2.5px;left:2.5px;width:18px;height:18px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(17,19,24,.2);transition:transform .2s}
.switch.on{background:var(--brand)}
.switch.on::after{transform:translateX(17px)}
.stepper{display:inline-flex;align-items:center;border:1px solid var(--line-strong);border-radius:9px;overflow:hidden;height:29px}
.stepper button{width:26px;height:100%;display:grid;place-items:center;color:var(--ink-2)}
.stepper button:hover{background:var(--surface-tint)}
.stepper span{min-width:42px;text-align:center;font-size:12px;font-variant-numeric:tabular-nums;border-left:1px solid var(--line);border-right:1px solid var(--line);line-height:27px}
.stepper.dis{opacity:.45;pointer-events:none}

/* 提示条 */
.toast{
  position:fixed;left:50%;top:16px;transform:translate(-50%,-14px);z-index:80;
  background:#111318;color:#fff;font-size:12.5px;padding:9px 15px;border-radius:11px;
  box-shadow:0 18px 40px -18px rgba(17,19,24,.7);opacity:0;transition:.26s;pointer-events:none;
  display:flex;align-items:center;gap:7px;max-width:min(420px,90vw);
}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* 移动端 */
.hamburger{display:none}
@media (max-width:920px){
  .shell{grid-template-columns:1fr}
  .side{position:fixed;top:0;bottom:0;left:0;width:274px;z-index:45;transform:translateX(-102%);transition:transform .3s cubic-bezier(.2,.8,.2,1)}
  .side.on{transform:none;box-shadow:24px 0 60px -30px rgba(17,19,24,.4)}
  .hamburger{display:inline-flex}
  .topbar{padding:0 14px}
  .stream-inner{padding:18px 15px}
  .composer-wrap{padding:0 15px 10px}
  .suggests{grid-template-columns:1fr}
  .personas{grid-template-columns:1fr}
  .msg .bubble{max-width:100%}
}
@media (max-width:600px){
  .topbar{gap:8px;padding:0 12px}
  #agent-role,.top-meta>.sep{display:none}
  .tbtn .lbl{display:none}
  .tbtn{padding:0 9px}
  .stream-inner{padding:14px 13px}
  .composer-wrap{padding:0 12px 8px}
  .composer-hint{font-size:10.5px}
  .msg{gap:9px}
  .msg .avatar{width:26px;height:26px;border-radius:9px;font-size:11px}
  .welcome h1{font-size:21px}
  .welcome{padding:18px 0 6px}
  .sheet-body{padding:14px 14px 6px}
  .sheet-head{padding:14px 14px 0}
  .sheet-foot{padding:10px 14px}
}