:root{--bg:#f4f6f9;--card:#fff;--text:#1d2430;--muted:#6b7585;--line:#e3e7ee;--accent:#1f4e8c;--accent-l:#e8f0fb;
--red:#c62828;--red-l:#fdecec;--green:#2e7d32;--green-l:#e8f5e9;--amber:#a86200;--amber-l:#fff4e0;--radius:10px}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font:15px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--accent);text-decoration:none}
.hidden{display:none!important}
/* 布局 */
.shell{display:grid;grid-template-columns:var(--sidew,220px) 1fr;grid-template-rows:56px 1fr;height:100vh;transition:grid-template-columns .18s}
.shell.rail{--sidew:60px}
.top{grid-column:1/3;display:flex;align-items:center;gap:12px;padding:0 16px;background:var(--accent);color:#fff}
.top .brand{font-weight:600;font-size:17px;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top button{background:transparent;border:0;color:#fff;cursor:pointer;padding:6px 8px;border-radius:6px;position:relative}
.top button:hover{background:rgba(255,255,255,.12)}
.badge{position:absolute;top:0;right:0;background:#ff5252;color:#fff;border-radius:9px;font-size:11px;min-width:18px;height:18px;line-height:18px;text-align:center;padding:0 4px}
.side{background:var(--card);border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0;overflow:hidden}
.side-scroll{flex:1;overflow-y:auto;padding:6px 0}
.side a{display:flex;align-items:center;gap:10px;padding:8px 16px;color:var(--text);white-space:nowrap;position:relative}
.side a .ni{width:20px;text-align:center;flex:none;font-size:15px}
.side a .nt{flex:1;overflow:hidden;text-overflow:ellipsis}
.side a.active{background:var(--accent-l);color:var(--accent);font-weight:600}
.side a:hover{background:#f0f3f8}
.side .sec{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);padding:12px 16px 4px;cursor:pointer;user-select:none;white-space:nowrap}
.side .sec:hover{color:var(--accent)}
.side .sec .st{flex:1}
.side .sec .chev{transition:transform .15s;font-size:11px}
.side .sec.closed .chev{transform:rotate(-90deg)}
.side .sec.has-active .st{color:var(--accent);font-weight:600}
.sec-body.closed{display:none}
.sec-dot{width:7px;height:7px;border-radius:50%;background:var(--red)}
.side .sec:not(.closed) .sec-dot{display:none}
.side-foot{border-top:1px solid var(--line);padding:6px 8px;display:flex;gap:6px;flex-wrap:wrap}
.side-tool{flex:1;border:0;background:transparent;color:var(--muted);font-size:12.5px;padding:6px 8px;border-radius:6px;cursor:pointer;white-space:nowrap}
.side-tool:hover{background:#f0f3f8;color:var(--accent)}
/* 收起为图标 */
.shell.rail .side .nt,.shell.rail .side .sec .st,.shell.rail .side .sec .chev,.shell.rail .side .sec-dot,.shell.rail #nav-all{display:none}
.shell.rail .side .sec{padding:6px 0;margin:4px 12px;border-top:1px solid var(--line);cursor:default}
.shell.rail .side .sec-body.closed{display:block}
.shell.rail .side a{justify-content:center;padding:9px 0}
.shell.rail .side a .ni{font-size:17px}
.shell.rail .side a .cnt{position:absolute;top:3px;right:8px;font-size:10px;padding:0 5px;line-height:15px}
.side .cnt{font-size:12px;background:var(--red);color:#fff;border-radius:9px;padding:0 7px;flex:none}
.main{overflow-y:auto;padding:18px}
.menu-btn{display:inline-block;font-size:18px}
@media (max-width:820px){
 .shell{grid-template-columns:1fr}
 .side{position:fixed;top:56px;left:0;bottom:0;width:240px;z-index:20;transform:translateX(-100%);transition:transform .2s;box-shadow:2px 0 8px rgba(0,0,0,.1)}
 .shell.rail{--sidew:0px}
 .shell.rail .side .nt,.shell.rail .side .sec .st,.shell.rail .side .sec .chev{display:inline}
 .shell.rail .side a{justify-content:flex-start;padding:8px 16px}
 #nav-rail{display:none}
 .side.open{transform:none}
 .menu-btn{display:inline-block}
 .main{padding:12px}
 .grid2{grid-template-columns:1fr!important}
 .hide-m{display:none}
}
/* 组件 */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:14px}
.card h3{margin:0 0 12px;font-size:16px}
h2{margin:0 0 14px;font-size:20px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.grow{flex:1}
.btn{border:1px solid var(--line);background:#fff;border-radius:8px;padding:7px 14px;cursor:pointer;white-space:nowrap}
.btn:hover{border-color:#b9c3d3}
.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn.danger{color:var(--red);border-color:#f0b9b9}
.btn.sm{padding:3px 10px;font-size:13px}
.btn:disabled{opacity:.5;cursor:not-allowed}
input[type=text],input[type=password],input[type=number],input[type=email],select,textarea{border:1px solid var(--line);border-radius:8px;padding:7px 10px;background:#fff;width:100%}
textarea{min-height:130px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid #bcd3f2;border-color:var(--accent)}
label.f{display:block;margin-bottom:10px}
label.f > span{display:block;font-size:13px;color:var(--muted);margin-bottom:3px}
.hint{font-size:12.5px;color:var(--muted)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
.tag{display:inline-block;font-size:12px;padding:0 8px;border-radius:9px;background:#eef1f5;color:#445;white-space:nowrap}
.tag.red{background:var(--red-l);color:var(--red)}
.tag.green{background:var(--green-l);color:var(--green)}
.tag.amber{background:var(--amber-l);color:var(--amber)}
.tag.blue{background:var(--accent-l);color:var(--accent)}
.alert{border-radius:8px;padding:10px 12px;margin-bottom:12px}
.alert.red{background:var(--red-l);color:var(--red);border:1px solid #f3c2c2}
.alert.amber{background:var(--amber-l);color:var(--amber);border:1px solid #f2d7a6}
.alert.green{background:var(--green-l);color:var(--green);border:1px solid #bfe0c1}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:8px;border-bottom:1px solid var(--line);vertical-align:top;font-size:14px}
th{color:var(--muted);font-weight:500;font-size:13px}
/* 邮件列表 */
.mail{display:block;padding:12px 14px;border-bottom:1px solid var(--line);color:var(--text);cursor:pointer}
.mail:hover{background:#f7f9fc}
.mail.urgent{border-left:4px solid var(--red)}
.mail .subj{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mail .meta{font-size:12.5px;color:var(--muted)}
.mail .sum{font-size:13.5px;color:#3a4352;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.list{padding:0;overflow:hidden}
.body{white-space:pre-wrap;word-break:break-word;background:#fafbfd;border:1px solid var(--line);border-radius:8px;padding:12px;max-height:480px;overflow:auto}
.stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;margin-bottom:14px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px}
.stat .n{font-size:26px;font-weight:600}
.stat .l{font-size:13px;color:var(--muted)}
.stat.red .n{color:var(--red)}
.tabs{display:flex;gap:4px;margin-bottom:8px}
.tabs button{border:0;background:transparent;padding:4px 10px;border-radius:6px;cursor:pointer;color:var(--muted)}
.tabs button.on{background:var(--accent-l);color:var(--accent);font-weight:600}
/* 登录 */
.login{max-width:360px;margin:12vh auto;padding:0 16px}
.login .card{padding:26px}
.login h1{font-size:22px;text-align:center;margin:0 0 20px;color:var(--accent)}
/* 弹窗 */
.modal{position:fixed;inset:0;background:rgba(15,23,42,.45);display:flex;align-items:flex-start;justify-content:center;z-index:50;overflow-y:auto;padding:5vh 12px}
.modal-box{background:#fff;border-radius:12px;padding:20px;width:100%;max-width:640px}
.modal-box h3{margin:0 0 14px}
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);background:#263238;color:#fff;padding:10px 18px;border-radius:8px;z-index:60;max-width:90vw;box-shadow:0 4px 14px rgba(0,0,0,.2)}
.toast.err{background:var(--red)}
.notif-panel{position:fixed;top:56px;right:8px;width:360px;max-width:calc(100vw - 16px);max-height:70vh;overflow-y:auto;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 24px rgba(0,0,0,.15);z-index:30}
.notif{padding:10px 14px;border-bottom:1px solid var(--line);font-size:14px;cursor:pointer}
.notif.unread{background:#fff8f8}
.notif .t{font-size:12px;color:var(--muted)}
.mode-banner{background:var(--amber-l);color:var(--amber);padding:8px 14px;border-radius:8px;margin-bottom:12px;border:1px solid #f2d7a6}
.check-list label{display:inline-flex;align-items:center;gap:5px;margin:0 14px 6px 0}

/* 第二阶段 */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:0 14px}
@media (max-width:1000px){.grid3{grid-template-columns:1fr}}
.barrow{display:grid;grid-template-columns:110px 1fr 90px;gap:8px;align-items:center;padding:4px 0;font-size:13.5px}
.barrow .bl{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bt{display:block;height:10px;background:#eef1f5;border-radius:5px;overflow:hidden}
.bf{display:block;height:100%;background:var(--accent);border-radius:5px}
.bf.low{background:var(--red)}
.bn{text-align:right}
.trend{display:flex;align-items:flex-end;gap:4px;height:150px;padding-top:6px;overflow-x:auto}
.tc{flex:1;min-width:22px;height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center}
.tb{width:70%;background:#9db7dd;border-radius:3px 3px 0 0;display:flex;flex-direction:column;justify-content:flex-end;min-height:2px}
.tu{background:var(--red);border-radius:0 0 0 0}
.td{font-size:10.5px;color:var(--muted);margin-top:3px;white-space:nowrap}
.kpi-card .kpi-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px;margin:12px 0}
.kpi-grid .l{font-size:12.5px;color:var(--muted)}
.kpi-grid .n{font-size:18px;font-weight:600}
.kpi-score{font-size:20px}
.grade{display:inline-block;width:30px;height:30px;line-height:30px;text-align:center;border-radius:50%;color:#fff;font-weight:700;font-size:16px;background:#888}
.g-A{background:#2e7d32}.g-B{background:#558b2f}.g-C{background:#f9a825}.g-D{background:#ef6c00}.g-E{background:#c62828}
.minis{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:4px 16px}
.mini{display:grid;grid-template-columns:64px 1fr 36px;gap:6px;align-items:center;font-size:12.5px}
.plat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.plat{margin:0}
.kv{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}
.linkbtn{border:0;background:none;color:var(--accent);cursor:pointer;padding:0;font:inherit;text-decoration:underline}
.grid2>*,.grid3>*{min-width:0}

/* 即时聊天 */
.main.main-chat{padding:0;overflow:hidden}
.chat-shell{display:grid;grid-template-columns:300px 1fr 270px;height:100%;min-height:0}
.chat-shell>*{min-width:0}
.chat-list-head select{min-width:0}
.shell>.main{min-width:0}
.chat-list{border-right:1px solid var(--line);background:#fff;display:flex;flex-direction:column;min-height:0}
.chat-list-head{padding:10px;border-bottom:1px solid var(--line)}
.chat-items{overflow-y:auto;flex:1}
.chat-item{display:flex;gap:10px;padding:10px 12px;border-bottom:1px solid var(--line);color:var(--text)}
.chat-item:hover{background:#f7f9fc}
.chat-item.on{background:var(--accent-l)}
.chat-item.urgent{border-left:3px solid var(--red)}
.ci-main{flex:1;min-width:0}
.ci-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ci-last{font-size:13px;color:#4a5363;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.unread{background:var(--red);color:#fff;border-radius:9px;font-size:11.5px;padding:0 7px;line-height:18px}
.avatar{width:38px;height:38px;border-radius:50%;background:#8aa0c0;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;position:relative;flex:none}
.avatar.wa{background:#25a35a}.avatar.line{background:#06b64a}
.ch-dot{position:absolute;right:-4px;bottom:-4px;font-size:12px}
.chat-thread{display:flex;flex-direction:column;min-height:0;background:#eef1f5}
.chat-empty{margin:auto}
.thread-head{display:flex;gap:10px;align-items:center;padding:8px 12px;background:#fff;border-bottom:1px solid var(--line)}
.win-bar{font-size:12.5px;padding:4px 12px;background:var(--green-l);color:var(--green)}
.win-bar.warn{background:var(--amber-l);color:var(--amber)}
.win-bar.closed{background:var(--red-l);color:var(--red)}
.win-bar.push{background:#eef1f5;color:#445}
.chat-summary{margin:8px 12px 0;padding:6px 10px;font-size:13.5px}
.msgs{flex:1;overflow-y:auto;padding:12px 14px}
.msg{display:flex;margin:6px 0}
.msg.out{justify-content:flex-end}
.bubble{max-width:72%;background:#fff;border-radius:12px;padding:8px 11px;box-shadow:0 1px 1px rgba(0,0,0,.06);word-break:break-word}
.bubble .zh,.bubble .orig{white-space:pre-wrap}
.msg.out .bubble{background:#d9f2df}
.bubble .orig{display:none;font-size:13px;color:#555;border-top:1px dashed #ccd;margin-top:5px;padding-top:4px}
.msg.show-orig .orig{display:block}
.bubble .meta{font-size:11.5px;color:var(--muted);margin-top:3px;white-space:normal}
.bubble .media{background:#f2f4f7;border-radius:8px;padding:8px;margin-bottom:5px;font-size:13.5px}
.st-read{color:#1f6fd1}.st-failed{color:var(--red)}
.tpl-tag{font-size:11.5px;color:var(--amber);margin-bottom:3px}
.tr-fail{color:var(--red);font-size:13px}
.msg-sys{text-align:center;font-size:12px;color:var(--muted);margin:10px 0}
.composer{background:#fff;border-top:1px solid var(--line);padding:8px 10px}
.compose-row{display:flex;gap:8px;align-items:flex-end}
.compose-row textarea{min-height:44px;flex:1}
.draft{border:1px solid #bfe0c1;background:#f5fbf5;border-radius:8px;padding:8px 10px;margin-bottom:8px;max-height:40vh;overflow:auto}
.draft.bad{border-color:#f3c2c2;background:#fff7f7}
.dtext{white-space:pre-wrap;background:#fff;border-radius:6px;padding:5px 8px;margin:2px 0 6px;font-size:14px}
.tpl-preview{background:#f7f9fc;border:1px solid var(--line);border-radius:8px;padding:8px 10px;margin:8px 0;white-space:pre-wrap;font-size:14px}
.chat-side{border-left:1px solid var(--line);background:#fff;overflow-y:auto;padding:10px}
.side-sec{border-bottom:1px solid var(--line);padding:8px 0 10px;margin-bottom:6px}
.side-card{display:block;border:1px solid var(--line);border-radius:8px;padding:6px 8px;margin-top:6px;font-size:13.5px;color:var(--text)}
.kv1{display:flex;justify-content:space-between;gap:8px;font-size:13.5px;margin-top:5px}
.copyrow{display:flex;gap:8px;align-items:center;margin-top:6px;flex-wrap:wrap}
.copyrow code{background:#f2f4f7;padding:3px 6px;border-radius:5px;font-size:12.5px;word-break:break-all}
.plat.dim{opacity:.6}
.back-m,.hide-d{display:none}
.side .cnt.hidden{display:none}
@media (max-width:1100px){.chat-shell{grid-template-columns:280px 1fr}.chat-side{display:none}
  .chat-side.open-m{display:block;position:fixed;right:0;top:56px;bottom:0;width:290px;z-index:25;box-shadow:-2px 0 10px rgba(0,0,0,.15)}.hide-d{display:inline-block}}
@media (max-width:820px){.chat-shell{grid-template-columns:1fr;height:calc(100vh - 56px)}
  .chat-shell.has-thread .chat-list{display:none}.chat-shell:not(.has-thread) .chat-thread{display:none}
  .back-m{display:inline-block}.bubble{max-width:86%}.thread-head select{max-width:92px}}