/* 后台管理端样式：浅色 + 蓝色主色（对齐 docs/管理端UI优化-演示稿.html）
   结构：左侧分组侧栏 + 顶栏面包屑 + 主区卡片 */
:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --line: #e3e8ef;
  --line2: #d5dbe2;
  --txt: #1f2d3d;
  --txt2: #5a6572;
  --txt3: #8a94a0;
  --blue: #4a7dff;
  --blue-weak: #eef4ff;
  --blue-dark: #3a6ce0;
  --green: #2e9e6b;
  --green-bg: #e8f6ee;
  --orange: #d98e2b;
  --orange-bg: #fff8ec;
  --red: #c05a3a;
  --red-bg: #fdf0ee;
  --radius: 10px;
  --side-w: 224px;
}

/* 旧变量名保留一份别名，老代码里还在用的地方不会突然失色 */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--txt);
  font: 14px/1.6 -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
}
h1, h2, h3 { margin: 0; }
.hidden { display: none !important; }

/* ============ 骨架 ============ */
.app { display: flex; min-height: 100vh; }

/* ---------- 侧边栏 ---------- */
.side {
  width: var(--side-w); flex: none; background: var(--card);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.side-brand {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 18px 14px; border-bottom: 1px solid var(--line);
}
.side-brand .logo {
  width: 34px; height: 34px; border-radius: 8px; flex: none;
  background: var(--blue); color: #fff;
  display: flex; align-items: center; justify-content: center;
}
.side-brand b { font-size: 15px; }
.side-brand small { display: block; color: var(--txt3); font-size: 11px; font-weight: 400; }

.side nav { padding: 10px 10px 16px; flex: 1; }
.nav-item {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 12px; border-radius: 8px;
  color: var(--txt2); cursor: pointer; font-size: 13.5px;
  margin-bottom: 2px; user-select: none;
}
.nav-item svg { flex: none; opacity: .75; }
.nav-item:hover { background: #f0f3f7; color: var(--txt); }
.nav-item.active { background: var(--blue-weak); color: var(--blue); font-weight: 600; }
.nav-item.active svg { opacity: 1; }

.nav-group { margin-top: 8px; }
.nav-group-t {
  display: flex; align-items: center; justify-content: space-between; gap: 6px;
  padding: 8px 12px 4px; font-size: 12px; color: var(--txt3); cursor: pointer; user-select: none;
}
.nav-group-t .arr { transition: transform .15s; font-size: 10px; }
.nav-group.open .nav-group-t .arr { transform: rotate(90deg); }
.nav-sub { padding-left: 8px; }
.nav-group:not(.open) .nav-sub { display: none; }
.side-foot { padding: 12px 18px; border-top: 1px solid var(--line); font-size: 11px; color: var(--txt3); }

/* ---------- 主区 ---------- */
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  background: var(--card); border-bottom: 1px solid var(--line);
  padding: 0 24px; height: 56px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  position: sticky; top: 0; z-index: 5;
}
.topbar .crumb { color: var(--txt2); font-size: 13px; }
.topbar .crumb b { color: var(--txt); }
.topbar .who { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--txt2); }
.topbar .who .avatar {
  width: 28px; height: 28px; border-radius: 50%; flex: none;
  background: var(--blue-weak); color: var(--blue);
  display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 600;
}
.wrap { padding: 20px 24px 40px; max-width: 1200px; width: 100%; margin: 0 auto; }
.page-title { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.page-sub { font-size: 12.5px; color: var(--txt3); margin-bottom: 18px; }

/* ============ 卡片 ============ */
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); margin-bottom: 16px; overflow: hidden;
}
.card-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 13px 16px; border-bottom: 1px solid var(--line);
}
.card-head h2 { font-size: 14.5px; font-weight: 600; }
.card-body { padding: 16px; }

.tag {
  display: inline-block; background: #f0f3f7; color: var(--txt2);
  font-size: 11.5px; padding: 2px 8px; border-radius: 20px; white-space: nowrap;
}
.tag.blue { background: var(--blue-weak); color: var(--blue); }
.tag.green { background: var(--green-bg); color: var(--green); }
.tag.orange { background: var(--orange-bg); color: var(--orange); }
.tag.red { background: var(--red-bg); color: var(--red); }
/* 旧类名别名 */
.tag-ok { background: var(--green-bg); color: var(--green); }
.tag-bad { background: var(--red-bg); color: var(--red); }
.tag-warn { background: var(--orange-bg); color: var(--orange); }

/* ---------- 统计卡 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 16px; }
.stat {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 15px 16px;
}
.stat .n { font-size: 24px; font-weight: 700; line-height: 1.2; }
.stat .l { font-size: 12.5px; color: var(--txt2); margin-top: 4px; }
.stat .d { font-size: 11px; color: var(--txt3); margin-top: 3px; }

/* ---------- 表 ---------- */
table.grid { width: 100%; border-collapse: collapse; font-size: 13px; }
table.grid th {
  text-align: left; font-weight: 600; color: var(--txt2); font-size: 12px;
  padding: 9px 10px; border-bottom: 1px solid var(--line); white-space: nowrap;
}
table.grid td { padding: 10px; border-bottom: 1px solid #f0f2f5; vertical-align: middle; color: var(--txt2); }
table.grid tr:last-child td { border-bottom: none; }
table.grid td.num, table.grid th.num { text-align: right; font-variant-numeric: tabular-nums; }
table.grid .mono { font-family: Consolas, Menlo, monospace; font-size: 12.5px; letter-spacing: .4px; }
.acts { white-space: nowrap; text-align: right; }

/* ---------- 表单 ---------- */
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12.5px; color: var(--txt2); margin-bottom: 5px; }
.in, .input {
  width: 100%; border: 1px solid var(--line2); border-radius: 7px;
  padding: 8px 10px; font-size: 13.5px; color: var(--txt); background: #fff;
  font-family: inherit;
}
.in:focus, .input:focus {
  outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(74, 125, 255, .12);
}
.hint { margin: 4px 0 0; font-size: 11.5px; color: var(--txt3); line-height: 1.6; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.input-sm { width: auto; max-width: none; }

/* ---------- 按钮 ---------- */
.btn {
  border: 1px solid var(--line2); background: #fff; color: var(--txt);
  border-radius: 7px; padding: 8px 16px; font-size: 13.5px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px; font-family: inherit;
}
.btn:hover { border-color: var(--blue); color: var(--blue); }
.btn.primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn.primary:hover { background: var(--blue-dark); color: #fff; }
.btn.danger {
  border-color: transparent; background: transparent; color: var(--red);
  padding: 2px 6px; font-size: 12.5px;
}
.btn.danger:hover { background: var(--red-bg); }
.btn.sm { padding: 5px 10px; font-size: 12.5px; }
.btn-row { display: flex; gap: 10px; margin-top: 6px; flex-wrap: wrap; align-items: center; }
.btn-primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); color: #fff; }
.btn-ghost { background: #fff; }
.btn[disabled] { opacity: .6; cursor: default; }

/* ---------- 配额表 ---------- */
.quota-tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.quota-tbl th, .quota-tbl td { padding: 11px 14px; border-bottom: 1px solid var(--line); text-align: left; }
.quota-tbl th { font-size: 12px; color: var(--txt2); background: #f8fafc; }
.num-in {
  width: 90px; border: 1px solid var(--line2); border-radius: 7px;
  padding: 7px 10px; text-align: center; font-size: 13.5px; color: var(--txt);
  font-family: inherit;
}
.num-in:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(74, 125, 255, .12); }

/* ---------- 卡密生成 ---------- */
.gen-row { display: flex; align-items: flex-end; gap: 14px; flex-wrap: wrap; }
.gen-field label { display: block; font-size: 12px; color: var(--txt2); margin-bottom: 5px; }
.gen-field .in { width: 130px; }
.copy-box {
  background: #f8fafc; border: 1px dashed var(--line2); border-radius: 8px;
  padding: 12px; margin-top: 14px;
  font-family: Consolas, Menlo, monospace; font-size: 12px; line-height: 1.9;
  color: var(--txt2); word-break: break-all; white-space: pre-wrap;
}

/* ---------- 7 日堆叠柱（纯 CSS，不依赖任何图表库） ---------- */
.legend-row { display: flex; gap: 16px; font-size: 12px; color: var(--txt2); margin-bottom: 10px; flex-wrap: wrap; }
.legend-row .lg { display: flex; align-items: center; gap: 5px; }
.legend-row .dot { width: 10px; height: 10px; border-radius: 3px; }
.bars { display: flex; align-items: flex-end; gap: 16px; height: 210px; padding-top: 8px; }
.bar-col { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; height: 100%; min-width: 34px; }
.bar-total {
  font-size: 12.5px; font-weight: 700; color: var(--txt);
  text-align: center; margin-bottom: 4px; font-variant-numeric: tabular-nums;
}
.bar-stack { display: flex; flex-direction: column; justify-content: flex-end; border-radius: 5px; overflow: hidden; }
.bar-seg { width: 100%; }
.bar-seg.p { background: #4a7dff; }
.bar-seg.s { background: #2e9e6b; }
.bar-seg.w { background: #d98e2b; }
.bar-seg.zero { height: 2px; }
.bar-d { font-size: 11.5px; color: var(--txt3); text-align: center; margin-top: 6px; }
.bar { width: 100%; max-width: 34px; border-radius: 6px 6px 3px 3px; background: var(--blue); }

/* ---------- 状态点 ---------- */
.state { display: inline-flex; align-items: center; gap: 5px; font-size: 12.5px; }
.state::before { content: ""; width: 7px; height: 7px; border-radius: 50%; }
.state.on::before { background: var(--green); }
.state.off::before { background: var(--txt3); }
.state.dis::before { background: var(--red); }

.empty { padding: 26px; text-align: center; color: var(--txt3); font-size: 13.5px; }

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 28px;
  transform: translateX(-50%) translateY(20px);
  background: #23303d; color: #fff; padding: 9px 18px; border-radius: 8px;
  font-size: 13px; opacity: 0; pointer-events: none; transition: all .25s; z-index: 99;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 弹窗 ---------- */
.modal {
  position: fixed; inset: 0; z-index: 80; background: rgba(24, 40, 52, .34);
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.modal-card {
  width: 100%; max-width: 380px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 20px 16px;
  box-shadow: 0 18px 48px rgba(24, 40, 52, .18);
}
.modal-card h3 { margin: 0 0 6px; font-size: 16px; font-weight: 650; }
.modal-card .field-row { margin-top: 14px; }
.modal.wide .modal-card { max-width: 720px; }
.modal.wide .modal-card .field-row { margin-top: 14px; }
/* ---------- 用户详情 / 错误信息 / 可点行 ---------- */
table.grid tr.row-link { cursor: pointer; }
table.grid tr.row-link:hover td { background: #f7f9fc; }
.err-msg {
  font-size: 12px; color: var(--red); max-width: 340px;
  white-space: normal; word-break: break-all; line-height: 1.5;
}
.detail-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.detail-sec { margin: 12px 0 0; }
.detail-sec h4 {
  margin: 0 0 8px; font-size: 13px; font-weight: 650; color: var(--txt);
  padding-bottom: 6px; border-bottom: 1px solid var(--line);
}
.kv { display: flex; align-items: baseline; gap: 10px; padding: 4px 0; font-size: 13px; }
.kv > span { width: 96px; flex: none; color: var(--txt3); font-size: 12.5px; }
.kv > b { font-weight: 600; color: var(--txt2); word-break: break-all; }
@media (max-width: 720px) {
  .detail-grid { grid-template-columns: 1fr; }
}

.field-row { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; flex-wrap: wrap; }
.field-row > label { width: 150px; flex: none; font-size: 13.5px; color: var(--txt2); }

/* ============ 登录页 ============ */
body.is-login {
  background:
    radial-gradient(900px 520px at 15% -10%, #dfe9ff 0%, rgba(223, 233, 255, 0) 60%),
    radial-gradient(760px 480px at 100% 0%, #e4eefb 0%, rgba(228, 238, 251, 0) 58%),
    radial-gradient(700px 520px at 50% 115%, #eeeffb 0%, rgba(238, 239, 251, 0) 62%),
    linear-gradient(168deg, #f5f8fc 0%, #f4f7fb 52%, #f7f8fc 100%);
  background-attachment: fixed;
}
.login-wall { min-height: 100vh; position: relative; overflow: hidden; display: flex; align-items: center; justify-content: center; padding: 48px 20px; }
.login-wall::before, .login-wall::after {
  content: ''; position: absolute; border-radius: 50%; filter: blur(48px); opacity: .5; pointer-events: none;
}
.login-wall::before {
  width: 320px; height: 320px; left: -80px; top: -60px;
  background: radial-gradient(circle at 50% 50%, rgba(74, 125, 255, .22), rgba(74, 125, 255, 0) 70%);
}
.login-wall::after {
  width: 280px; height: 280px; right: -60px; bottom: -70px;
  background: radial-gradient(circle at 50% 50%, rgba(109, 144, 182, .20), rgba(109, 144, 182, 0) 70%);
}
.login-card {
  position: relative; z-index: 1; width: 100%; max-width: 400px;
  background: rgba(255, 255, 255, .93); border: 1px solid rgba(255, 255, 255, .9);
  border-radius: 22px; padding: 32px 30px 24px;
  box-shadow: 0 1px 2px rgba(34, 48, 58, .04), 0 18px 48px rgba(34, 48, 58, .10);
  animation: login-in .38s cubic-bezier(.2, .8, .3, 1) both;
}
@keyframes login-in {
  from { opacity: 0; transform: translateY(14px) scale(.985); }
  to { opacity: 1; transform: none; }
}
.login-brand { text-align: center; margin-bottom: 26px; }
.login-logo {
  width: 56px; height: 56px; margin: 0 auto 14px; border-radius: 17px; color: #fff;
  background: linear-gradient(140deg, #6a95ff 0%, var(--blue) 55%, var(--blue-dark) 100%);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 20px rgba(74, 125, 255, .28);
}
.login-title { font-size: 22px; font-weight: 680; letter-spacing: .5px; color: var(--txt); }
.login-sub { margin: 7px 0 0; font-size: 13px; line-height: 1.6; color: var(--txt3); }
.login-field { position: relative; margin-bottom: 12px; }
.login-ico {
  position: absolute; left: 13px; top: 50%; transform: translateY(-50%);
  width: 17px; height: 17px; color: var(--txt3); pointer-events: none; transition: color .18s;
}
.login-input {
  width: 100%; height: 46px; padding: 0 14px 0 40px;
  font: 15px/1.4 -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--txt); background: #fff;
  border: 1.5px solid var(--line); border-radius: 13px; outline: none;
  transition: border-color .18s, box-shadow .18s;
}
.login-input::placeholder { color: var(--txt3); }
.login-input:hover { border-color: var(--line2); }
.login-input:focus { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(74, 125, 255, .13); }
.login-field:focus-within .login-ico { color: var(--blue); }
.login-btn {
  width: 100%; height: 47px; margin-top: 4px;
  font: 600 15.5px/1 -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
  letter-spacing: 2px; color: #fff; cursor: pointer;
  background: linear-gradient(140deg, #5f89ff 0%, var(--blue) 50%, var(--blue-dark) 100%);
  border: 0; border-radius: 13px; box-shadow: 0 6px 18px rgba(74, 125, 255, .26);
  transition: transform .16s, box-shadow .16s, filter .16s;
}
.login-btn:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(74, 125, 255, .32); }
.login-btn:active { transform: translateY(0); filter: brightness(.97); }
.login-btn[disabled] { opacity: .65; cursor: default; transform: none; }
.login-foot {
  margin: 20px 0 0; padding-top: 15px; border-top: 1px solid var(--line);
  font-size: 12px; line-height: 1.65; color: var(--txt3); text-align: center;
}
.login-err { margin: 2px 0 10px; font-size: 13px; color: var(--red); display: none; }
.login-err.is-on {
  display: flex; align-items: flex-start; gap: 6px;
  padding: 8px 11px; background: var(--red-bg); border-radius: 10px;
}

/* ============ 响应式 ============ */
@media (max-width: 960px) {
  .app { flex-direction: column; }
  .side {
    width: 100%; height: auto; position: static; flex-direction: row;
    align-items: center; flex-wrap: wrap; padding-bottom: 6px; overflow: visible;
  }
  .side-brand { border-bottom: none; padding: 10px 14px; }
  .side nav { display: flex; flex-wrap: wrap; gap: 4px; padding: 0 10px 8px; }
  .nav-group { display: flex; align-items: center; gap: 4px; margin: 0; }
  .nav-group-t { display: none; }
  .nav-sub { display: flex !important; padding: 0; gap: 4px; }
  .side-foot { display: none; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .topbar { flex-wrap: wrap; height: auto; padding: 10px 14px; }
  .wrap { padding: 16px 14px 32px; }
}
@media (max-width: 520px) { .stats { grid-template-columns: 1fr; } }
@media (max-width: 640px) {
  body { font-size: 16px; }
  .in, .input, .num-in, .gen-field .in, input, select, textarea { font-size: 16px; }
  .nav-item { font-size: 15px; }
  .card-head h2 { font-size: 15px; }
  table.grid, .quota-tbl { font-size: 14px; }
  .bars { height: 180px; }
}
@media (max-width: 480px) {
  .login-wall { padding: 30px 16px; align-items: flex-start; }
  .login-card { padding: 28px 20px 20px; border-radius: 18px; }
  .login-title { font-size: 20px; }
}