:root{
  --accent:#3373d9;            /* 当前智能体主题色,由 JS 切 */
  --pi-red:#e23c2e;
  --bg:#f2f2f7; --card:#fff; --ink:#1c1c1e; --sub:#8a8a8e; --line:#e5e5ea;
  --bubble-ai:#ffffff; --safe-b:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%}
body{
  font:16px/1.55 -apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);background:#000;
  overscroll-behavior:none;
}
.phone-wrap{min-height:100dvh;display:flex;align-items:center;justify-content:center;background:#0d0d10}
.phone{
  position:relative;width:100%;max-width:480px;height:100dvh;background:var(--bg);
  display:flex;flex-direction:column;overflow:hidden;
}
@media(min-width:520px){ .phone{height:min(920px,96dvh);border-radius:34px;box-shadow:0 24px 70px rgba(0,0,0,.5)} }

/* ===== 登录 ===== */
.login{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px 30px;gap:6px;text-align:center}
.login .logo{width:84px;height:84px;border-radius:20px;box-shadow:0 8px 24px rgba(0,0,0,.18);margin-bottom:6px}
.login .pi{font-size:40px;margin:2px 0 0;color:var(--pi-red);font-weight:800}
.login .sub{color:var(--sub);margin:0 0 22px}
.login .step{width:100%;max-width:300px;display:flex;flex-direction:column;gap:12px}
.login label{text-align:left;font-size:14px;color:var(--sub);margin-left:2px}
.login input{width:100%;padding:14px 16px;border:1px solid var(--line);border-radius:14px;font-size:17px;background:#fff;outline:none}
.login input:focus{border-color:var(--pi-red)}
.btn-primary{width:100%;padding:14px;border:none;border-radius:14px;background:var(--pi-red);color:#fff;font-size:17px;font-weight:600;letter-spacing:2px}
.btn-primary:active{opacity:.85}
.err{color:#e23c2e;font-size:13px;min-height:16px;margin:0}
.tip{color:var(--sub);font-size:12px;margin-top:20px;line-height:1.7}

/* ===== 顶栏(按智能体染色)===== */
.topbar{
  flex:0 0 auto;height:52px;display:flex;align-items:center;justify-content:center;gap:7px;position:relative;
  background:var(--accent);color:#fff;transition:background .25s;padding-top:env(safe-area-inset-top,0)
}
.topbar.me{background:#fff;color:var(--ink);border-bottom:1px solid var(--line)}
.topbar .tb-icon{font-size:18px;line-height:1}
.topbar.me .tb-icon{display:none}
.topbar .title{font-weight:600;font-size:16px}
.topbar .clear-btn{position:absolute;right:14px;top:50%;transform:translateY(-50%);background:none;border:none;color:rgba(255,255,255,.9);font-size:14px}
.topbar .clear-btn:active{opacity:.6}

/* ===== 舞台/聊天 ===== */
.stage{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;background:var(--bg)}
.chat-view{min-height:100%;display:flex;flex-direction:column;gap:12px;padding:14px 12px 6px}

/* 空态:大图欢迎 + 快捷提问(每智能体一套色)*/
.welcome{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:12px;padding:24px 22px 12px}
.welcome .avatar{width:76px;height:76px;border-radius:24px;display:grid;place-items:center;font-size:40px;box-shadow:0 6px 18px rgba(0,0,0,.08)}
.welcome h4{margin:2px 0 0;color:var(--accent);font-size:19px;font-weight:700}
.welcome .greet{margin:0;color:var(--sub);font-size:14.5px;max-width:290px;line-height:1.6}
.quicks{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;margin-top:8px}
.quick{border:1px solid var(--accent);color:var(--accent);background:#fff;border-radius:18px;padding:8px 15px;font-size:14px;line-height:1.2}
.quick:active{background:var(--accent);color:#fff}

.msg{display:flex;max-width:100%}
.msg.user{justify-content:flex-end}
.msg .bubble{max-width:82%;padding:10px 13px;border-radius:16px;font-size:15.5px;word-break:break-word;white-space:normal}
.msg.user .bubble{background:var(--accent);color:#fff;border-bottom-right-radius:5px}
.msg.ai .bubble{background:var(--bubble-ai);color:var(--ink);border-bottom-left-radius:5px;box-shadow:0 1px 3px rgba(0,0,0,.06)}
.msg.ai .bubble.err{background:#fff3f2;color:#c0392b}
.typing{color:var(--sub);font-size:14px;padding:4px 6px}

/* markdown 渲染 */
.bubble p{margin:.4em 0}
.bubble p:first-child{margin-top:0}.bubble p:last-child{margin-bottom:0}
.bubble strong{font-weight:700}
.bubble ul,.bubble ol{margin:.4em 0;padding-left:1.3em}
.bubble li{margin:.2em 0}
.bubble code{background:rgba(0,0,0,.06);padding:1px 5px;border-radius:5px;font-size:.9em}
.bubble h1,.bubble h2,.bubble h3{font-size:1.02em;margin:.6em 0 .3em;font-weight:700}
.bubble table{border-collapse:collapse;width:100%;margin:.5em 0;font-size:13px;display:block;overflow-x:auto}
.bubble th,.bubble td{border:1px solid var(--line);padding:5px 8px;text-align:left}
.bubble th{background:#f7f7fa}

/* ===== 输入栏 ===== */
.inputbar{
  flex:0 0 auto;display:flex;align-items:flex-end;gap:8px;padding:8px 10px calc(8px + var(--safe-b));
  background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-top:1px solid var(--line)
}
.inputbar textarea{
  flex:1;resize:none;border:1px solid var(--line);border-radius:20px;padding:9px 14px;font-size:16px;
  max-height:120px;outline:none;background:#fff;font-family:inherit
}
.inputbar textarea:focus{border-color:var(--accent)}
.send{flex:0 0 auto;width:40px;height:40px;border:none;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center}
.send:disabled{background:#c7c7cc}
.send:active{opacity:.85}

/* ===== tab bar ===== */
.tabbar{
  flex:0 0 auto;display:flex;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);padding-bottom:var(--safe-b)
}
.tabbar .tab{flex:1;background:none;border:none;padding:7px 0 6px;color:var(--sub);display:flex;flex-direction:column;align-items:center;gap:3px;font-size:11px}
.tabbar .tab .ico{font-size:19px;line-height:1;filter:grayscale(1);opacity:.55;transition:.15s}
.tabbar .tab.active{color:var(--accent);font-weight:600}
.tabbar .tab.active .ico{filter:none;opacity:1}

/* ===== 我的 ===== */
.me-view{padding:16px 14px calc(24px + var(--safe-b));display:flex;flex-direction:column;gap:14px}
.me-card{background:#fff;border-radius:16px;padding:16px;box-shadow:0 1px 3px rgba(0,0,0,.05)}
.me-card h3{margin:0 0 12px;font-size:15px}
.ag-item{display:flex;gap:11px;padding:11px 0;border-top:1px solid var(--line)}
.ag-item:first-of-type{border-top:none;padding-top:0}
.ag-item .ag-ico{flex:0 0 auto;width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-size:21px;background:#f2f2f7;background:color-mix(in srgb,var(--c) 14%,#fff)}
.ag-txt b{display:block;font-size:14.5px;color:var(--c);margin-bottom:2px}
.ag-txt p{margin:0;color:var(--sub);font-size:12.5px;line-height:1.55}
.me-row{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-top:1px solid var(--line);font-size:14px}
.me-row:first-of-type{border-top:none}
.me-row b{font-weight:600;flex:0 0 auto}
.me-row span{color:var(--sub);text-align:right}
.me-card input{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;font-size:16px;outline:none}
.me-card input:focus{border-color:var(--pi-red)}
.hint{color:var(--sub);font-size:12px;margin:10px 0 0;line-height:1.6}
.me-actions{display:flex;gap:10px}
.btn-mini{flex:1;padding:11px;border:1px solid var(--line);border-radius:12px;background:#fff;font-size:14px;color:var(--ink)}
.btn-mini:active{background:#f2f2f7}
.btn-danger{width:100%;margin-top:12px;padding:12px;border:none;border-radius:12px;background:#fff0ef;color:#e23c2e;font-size:15px;font-weight:600}
.disclaimer{color:var(--sub);font-size:12px;line-height:1.7;padding:0 4px}