:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --line: #e5e7eb;
  --line-2: #eef0f3;
  --text: #1f2329;
  --text-2: #6b7280;
  --text-3: #9ca3af;
  --blue: #2563eb;
  --blue-bg: #eff6ff;
  --green: #16a34a;
  --green-bg: #f0fdf4;
  --amber: #d97706;
  --amber-bg: #fffbeb;
  --red: #dc2626;
  --red-bg: #fef2f2;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------------- 布局 ---------------- */
.nav {
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 4px;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 50;
}
.nav .brand { font-weight: 600; font-size: 15px; margin-right: 20px; white-space: nowrap; }
.nav .brand span { color: var(--text-3); font-weight: 400; font-size: 13px; margin-left: 8px; }
.nav a.item {
  padding: 6px 12px; border-radius: 6px; color: var(--text-2);
  font-size: 14px; white-space: nowrap;
}
.nav a.item:hover { background: var(--line-2); text-decoration: none; color: var(--text); }
.nav a.item.on { background: var(--blue-bg); color: var(--blue); font-weight: 500; }
.nav .spacer { flex: 1; }

/* 顶部当前登录的人 */
.nav .whoami { font-size: 13px; color: var(--text-2); margin-right: 6px; white-space: nowrap; }
.nav .whoami .role { margin-left: 6px; font-size: 11.5px; padding: 1px 7px; border-radius: 20px;
                     background: var(--blue-bg); color: var(--blue); }
.nav a.quit { color: var(--text-3); }

.wrap { max-width: 1240px; margin: 0 auto; padding: 22px 24px 60px; }
.wrap.narrow { max-width: 900px; }

.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px 20px; margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.card h2 { font-size: 15px; margin: 0 0 14px; font-weight: 600; }
.card h2 .sub { font-weight: 400; color: var(--text-3); font-size: 13px; margin-left: 8px; }
.card.tight { padding: 14px 16px; }

.grid { display: grid; gap: 16px; }
.grid.c2 { grid-template-columns: 1fr 1fr; }
.grid.c3 { grid-template-columns: repeat(3, 1fr); }
.grid.c4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid.c3, .grid.c4 { grid-template-columns: 1fr 1fr; } }

.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.row.end { justify-content: flex-end; }
.mt { margin-top: 14px; }
.muted { color: var(--text-2); }
.small { font-size: 13px; }
.tiny { font-size: 12px; color: var(--text-3); }

/* ---------------- 表单 ---------------- */
label.f { display: block; margin-bottom: 14px; }
label.f > .lb { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 6px; }
input[type=text], input[type=password], input[type=number], select, textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--line);
  border-radius: 8px; font: inherit; background: #fff; color: var(--text);
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37, 99, 235, .1);
}
textarea { resize: vertical; min-height: 80px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 16px; border-radius: 8px; border: 1px solid var(--line);
  background: #fff; color: var(--text); font: inherit; cursor: pointer;
  white-space: nowrap; transition: .15s;
}
.btn:hover { border-color: #cbd5e1; background: #fafafa; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn.primary:hover { background: #1d4ed8; }
.btn.danger { background: var(--red); border-color: var(--red); color: #fff; }
.btn.danger:hover { background: #b91c1c; }
.btn.ghost { background: transparent; border-color: transparent; color: var(--text-2); }
.btn.ghost:hover { background: var(--line-2); }
.btn.lg { padding: 11px 24px; font-size: 15px; }
.btn.sm { padding: 5px 10px; font-size: 13px; }

/* ---------------- 统计卡 ---------------- */
.stat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.stat .n { font-size: 26px; font-weight: 600; line-height: 1.2; }
.stat .l { font-size: 13px; color: var(--text-2); margin-top: 2px; }
.stat .n.g { color: var(--green); }
.stat .n.r { color: var(--red); }
.stat .n.b { color: var(--blue); }

/* ---------------- 类目选择 ---------------- */
.cat-pick { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
@media (max-width: 900px) { .cat-pick { grid-template-columns: repeat(2, 1fr); } }
.cat-pick .c {
  border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px;
  cursor: pointer; background: #fff; transition: .15s;
}
.cat-pick .c:hover { border-color: #cbd5e1; background: #fafafa; }
.cat-pick .c.on { border-color: var(--blue); background: var(--blue-bg); }
.cat-pick .c { position: relative; }
.cat-pick .c .ck {
  position: absolute; top: 6px; right: 8px; display: none;
  font-size: 11px; color: #fff; background: var(--blue);
  width: 16px; height: 16px; line-height: 16px; text-align: center; border-radius: 50%;
}

/* 类目选择：单选 / 多选模式切换 */
.seg {
  display: inline-flex; border: 1px solid var(--line); border-radius: 8px;
  overflow: hidden; flex: 0 0 auto;
}
.seg span {
  padding: 5px 14px; font-size: 13px; color: var(--text-2);
  cursor: pointer; background: #fff;
}
.seg span + span { border-left: 1px solid var(--line); }
.seg span.on { background: var(--blue); color: #fff; }
.cat-pick .c .t { font-size: 13.5px; font-weight: 500; }
.cat-pick .c .d { font-size: 12px; color: var(--text-3); margin-top: 2px; }

.chip {
  display: inline-block; padding: 3px 10px; border-radius: 999px;
  border: 1px solid var(--line); background: #fff; cursor: pointer;
  font-size: 13px; color: var(--text-2);
}
.chip.on { background: var(--blue); border-color: var(--blue); color: #fff; }

/* ---------------- 徽章 ---------------- */
.tag { display: inline-block; padding: 2px 8px; border-radius: 5px; font-size: 12px; line-height: 1.6; }
.tag.blue { background: var(--blue-bg); color: var(--blue); }
.tag.green { background: var(--green-bg); color: var(--green); }
.tag.amber { background: var(--amber-bg); color: var(--amber); }
.tag.red { background: var(--red-bg); color: var(--red); }
.tag.gray { background: #f3f4f6; color: var(--text-2); }

/* ---------------- 对练：左右分栏 ---------------- */
.exam-shell { display: grid; grid-template-columns: 1fr 340px; gap: 16px; align-items: start; }
@media (max-width: 1000px) { .exam-shell { grid-template-columns: 1fr; } }

.chat-card { display: flex; flex-direction: column; height: calc(100vh - 120px); padding: 0; overflow: hidden; }
.chat-head {
  padding: 12px 18px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 10px; flex: 0 0 auto; background: #fafbfc;
}
.chat-head .who { font-weight: 600; }
.chat-body { flex: 1; overflow-y: auto; padding: 16px 18px; background: #f7f8fa; }
.chat-foot { flex: 0 0 auto; border-top: 1px solid var(--line); padding: 12px 14px; background: #fff; }

.msg { display: flex; gap: 10px; margin-bottom: 16px; align-items: flex-start; }
.msg .av {
  width: 34px; height: 34px; border-radius: 50%; flex: 0 0 auto;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; color: #fff; background: #94a3b8;
}
.msg .bd { max-width: 74%; }
.msg .nm { font-size: 12px; color: var(--text-3); margin-bottom: 4px; }
.msg .bub {
  padding: 9px 13px; border-radius: 10px; background: #fff;
  border: 1px solid var(--line); white-space: pre-wrap; word-break: break-word;
}
.msg.kefu { flex-direction: row-reverse; }
.msg.kefu .av { background: var(--blue); }
.msg.kefu .bd { text-align: right; }
.msg.kefu .bub { background: var(--blue); border-color: var(--blue); color: #fff; text-align: left; }
.msg.sys { justify-content: center; }
.msg.sys .bub {
  background: #fff; border: 1px dashed var(--line); color: var(--text-2);
  font-size: 12.5px; padding: 5px 12px;
}
.msg.sys .av, .msg.sys .nm { display: none; }

.typing { display: inline-block; color: var(--text-3); font-size: 13px; padding-left: 4px; }
.typing::after {
  content: '...'; animation: dots 1.2s steps(4, end) infinite;
}
@keyframes dots { 0% { opacity: .2 } 50% { opacity: 1 } 100% { opacity: .2 } }

/* ---------------- 流程操作面板 ---------------- */
.act-panel { max-height: calc(100vh - 120px); overflow-y: auto; }
.act-list { display: flex; flex-direction: column; gap: 8px; }
.act {
  display: flex; align-items: flex-start; gap: 9px; padding: 9px 11px;
  border: 1px solid var(--line); border-radius: 8px; cursor: pointer;
  background: #fff; transition: .15s; text-align: left; width: 100%; font: inherit;
}
.act:hover { border-color: #cbd5e1; background: #fafafa; }
.act.done { border-color: var(--green); background: var(--green-bg); cursor: default; }
.act .box {
  width: 16px; height: 16px; border: 1.5px solid #cbd5e1; border-radius: 4px;
  flex: 0 0 auto; margin-top: 2px; position: relative;
}
.act.done .box { background: var(--green); border-color: var(--green); }
.act.done .box::after {
  content: ''; position: absolute; left: 4.5px; top: 1px;
  width: 4px; height: 8px; border: solid #fff; border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.act .tx { font-size: 13px; line-height: 1.5; }
.act .sc { font-size: 11.5px; color: var(--text-3); }

.progress-line { height: 6px; background: var(--line-2); border-radius: 999px; overflow: hidden; }
.progress-line > i { display: block; height: 100%; background: var(--green); transition: width .3s; }

/* ---------------- 报告 ---------------- */
.score-hero {
  display: flex; align-items: center; gap: 26px; flex-wrap: wrap;
}
.score-num { font-size: 54px; font-weight: 600; line-height: 1; }
.score-num small { font-size: 18px; font-weight: 400; color: var(--text-3); }
.verdict { font-size: 19px; font-weight: 600; margin-bottom: 4px; }
.verdict.ok { color: var(--green); }
.verdict.no { color: var(--red); }

.bar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.bar-row .nm { width: 190px; flex: 0 0 auto; font-size: 13px; }
.bar-row .bar { flex: 1; height: 8px; background: var(--line-2); border-radius: 999px; overflow: hidden; }
.bar-row .bar > i { display: block; height: 100%; background: var(--blue); }
.bar-row .sc { width: 54px; text-align: right; font-size: 12.5px; color: var(--text-2); flex: 0 0 auto; }
.bar-row .bar > i.zero { background: var(--red); }
.bar-row .bar > i.full { background: var(--green); }

.issue {
  border: 1px solid var(--line); border-left: 3px solid var(--amber);
  border-radius: 8px; padding: 13px 15px; margin-bottom: 11px; background: #fff;
}
.issue.high { border-left-color: var(--red); }
.issue.low { border-left-color: var(--text-3); }
.issue .t { font-weight: 600; margin-bottom: 7px; }
.issue .kv { font-size: 13px; margin-bottom: 6px; }
.issue .kv b { color: var(--text-2); font-weight: 500; }
.issue .better {
  margin-top: 8px; padding: 9px 12px; background: var(--green-bg);
  border-radius: 7px; font-size: 13px; border: 1px solid #d1fae5;
}
.redline-box {
  border: 1px solid #fecaca; background: var(--red-bg); border-radius: 8px;
  padding: 13px 15px; margin-bottom: 11px;
}

/* ---------------- 表格 ---------------- */
table.tb { width: 100%; border-collapse: collapse; }
table.tb th, table.tb td {
  padding: 10px 12px; border-bottom: 1px solid var(--line-2);
  text-align: left; font-size: 13.5px;
}
table.tb th { color: var(--text-2); font-weight: 500; background: #fafbfc; font-size: 13px; }
table.tb tr:hover td { background: #fafbfc; }
table.tb td.act a { margin-right: 10px; }

/* ---------------- 工作台（千牛 / 企微） ---------------- */
.desk {
  display: grid; grid-template-columns: 246px 1fr 250px;
  gap: 0; height: calc(100vh - 56px); background: var(--card);
  border-top: 1px solid var(--line);
}
@media (max-width: 1100px) { .desk { grid-template-columns: 200px 1fr 220px; } }

.desk-side { border-right: 1px solid var(--line); overflow-y: auto; background: #fafbfc; }
.desk-main { display: flex; flex-direction: column; min-width: 0; background: #f7f8fa; }
.desk-info { border-left: 1px solid var(--line); overflow-y: auto; padding: 14px; background: #fff; }

.desk-top {
  display: flex; align-items: center; gap: 10px; padding: 9px 16px;
  border-bottom: 1px solid var(--line); background: #fff; flex: 0 0 auto;
}
.desk-top .t { font-weight: 600; font-size: 14px; }
.desk-top .sp { flex: 1; }

.sess-group {
  font-size: 12px; color: var(--text-3); padding: 9px 12px 4px;
  display: flex; align-items: center; gap: 6px;
}
.sess {
  padding: 8px 12px; cursor: pointer; border-left: 3px solid transparent;
  display: flex; gap: 8px; align-items: flex-start;
}
.sess:hover { background: #f1f3f5; }
.sess.on { background: var(--blue-bg); border-left-color: var(--blue); }
.sess .nm { font-size: 13px; font-weight: 500; }
.sess .pv { font-size: 12px; color: var(--text-3); margin-top: 1px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sess .bd {
  background: var(--red); color: #fff; border-radius: 9px; font-size: 11px;
  padding: 0 6px; min-width: 18px; text-align: center; line-height: 18px;
}
.sess .av {
  width: 30px; height: 30px; border-radius: 50%; background: #94a3b8; color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 12px; flex: 0 0 auto;
}
.sess.wait { opacity: .75; }
.sess.done { opacity: .55; }

.chat-body { flex: 1; overflow-y: auto; padding: 16px 20px; }
.chat-foot { flex: 0 0 auto; border-top: 1px solid var(--line); padding: 12px 16px; background: #fff; }

.notice {
  text-align: center; font-size: 12px; color: var(--text-3);
  padding: 6px 12px; margin: 6px auto; background: #fff; border: 1px dashed var(--line);
  border-radius: 8px; max-width: 460px;
}

.sysmsg { text-align: center; margin: 10px 0; }
.sysmsg span {
  display: inline-block; font-size: 12px; color: var(--text-2); background: #eef1f4;
  border-radius: 6px; padding: 4px 12px;
}

.btn-line { display: flex; flex-direction: column; gap: 7px; }
.info-kv { font-size: 13px; line-height: 1.9; }
.info-kv .k { color: var(--text-3); display: inline-block; width: 56px; }
.info-sec { font-size: 12px; color: var(--text-3); margin: 14px 0 6px; }

.group-item {
  padding: 8px 12px; cursor: pointer; border-left: 3px solid transparent;
  display: flex; gap: 8px; align-items: center;
}
.group-item:hover { background: #f1f3f5; }
.group-item.on { background: var(--blue-bg); border-left-color: var(--blue); }
.group-item .av {
  width: 30px; height: 30px; border-radius: 6px; background: #0f6e56; color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 12px; flex: 0 0 auto;
}

/* ---------------- 报告（批次） ---------------- */
.exam-card {
  border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px;
  margin-bottom: 12px; background: #fff; cursor: pointer;
}
.exam-card:hover { border-color: #cbd5e1; }
.exam-card .hd { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.exam-card .sc { font-size: 22px; font-weight: 600; margin-left: auto; }
.exam-card.open { border-color: var(--blue); }

/* ---------------- 其他 ---------------- */
.empty { text-align: center; padding: 44px 20px; color: var(--text-3); }
.alert { padding: 10px 14px; border-radius: 8px; font-size: 13.5px; margin-bottom: 14px; }
.alert.warn { background: var(--amber-bg); border: 1px solid #fde68a; color: #92400e; }
.alert.err { background: var(--red-bg); border: 1px solid #fecaca; color: #991b1b; }
.alert.ok { background: var(--green-bg); border: 1px solid #bbf7d0; color: #166534; }
.alert.info { background: var(--blue-bg); border: 1px solid #bfdbfe; color: #1e40af; }

#toast {
  position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%);
  background: #1f2329; color: #fff; padding: 10px 20px; border-radius: 8px;
  font-size: 13.5px; opacity: 0; pointer-events: none; transition: .25s; z-index: 999;
}
#toast.show { opacity: 1; }

.modal-mask {
  position: fixed; inset: 0; background: rgba(15, 23, 42, .45);
  display: flex; align-items: center; justify-content: center; z-index: 900;
}
.modal {
  background: #fff; border-radius: 12px; padding: 22px 24px;
  max-width: 520px; width: calc(100% - 40px); max-height: 84vh; overflow-y: auto;
}
.modal h3 { margin: 0 0 12px; font-size: 16px; }

.kv-list { font-size: 13.5px; }
.kv-list .r { display: flex; gap: 10px; padding: 6px 0; border-bottom: 1px dashed var(--line-2); }
.kv-list .r:last-child { border-bottom: none; }
.kv-list .k { width: 100px; flex: 0 0 auto; color: var(--text-2); }

details.d { border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px; margin-bottom: 10px; }
details.d > summary { cursor: pointer; font-size: 13.5px; color: var(--text-2); }
details.d > div { padding-top: 10px; font-size: 13px; }

/* 给浏览器自动填充准备的「假框」：让它把账号密码填到这儿，别污染真字段。
   ⚠️ 故意用「挪到屏幕外」而不是 display:none ——
   部分浏览器会跳过 display:none 的字段，再去找真正的字段填，那样假框就白设了。 */
.autofill-trap {
  position: absolute;
  left: -9999px;
  top: 0;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

/* ---------------- 页脚（备案信息） ----------------
   国内上线后必须在页面底部展示备案号，并链接到工信部备案系统。
   没配备案号时这段 HTML 不会渲染，本地跑看不到。 */
.foot {
  text-align: center;
  padding: 20px 20px 28px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-3);
}
.foot a { color: var(--text-3); text-decoration: none; }
.foot a:hover { color: var(--text-2); text-decoration: underline; }