/* ===== 健身小程序 · 后台管理 UI ===== */
:root {
  --bg: #F3F5F9;
  --surface: #FFFFFF;
  --ink: #161B27;
  --ink-2: #5B6472;
  --ink-3: #98A1B0;
  --line: #EDF0F5;
  --primary: #2E7BFF;
  --primary-deep: #1B5FE0;
  --primary-tint: #E8F0FF;
  --green: #23C26E;
  --orange: #FF9F2E;
  --red: #F5455C;
  --purple: #7A5AF8;
  --radius: 14px;
  --shadow: 0 4px 16px rgba(22, 27, 39, .05);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; font-size: 14px; }

/* ===== 布局 ===== */
.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px;
  background: var(--surface);
  border-right: 1px solid var(--line);
  padding: 20px 14px;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.brand { display: flex; align-items: center; gap: 10px; padding: 0 8px 18px; }
.brand .logo {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800;
}
.brand b { font-size: 15px; }
.brand span { display: block; font-size: 11px; color: var(--ink-3); }

.nav-group { margin-top: 14px; }
.nav-title { font-size: 11px; color: var(--ink-3); padding: 0 10px 8px; letter-spacing: .04em; }
.nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px; border-radius: 10px; color: var(--ink-2); margin-bottom: 2px;
}
.nav a i { font-style: normal; font-size: 15px; width: 18px; text-align: center; }
.nav a:hover { background: #F7F9FC; }
.nav a.on { background: var(--primary-tint); color: var(--primary); font-weight: 600; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 5;
}
.topbar h1 { font-size: 18px; font-weight: 700; }
.topbar .right { display: flex; align-items: center; gap: 14px; color: var(--ink-2); font-size: 13px; }
.avatar { width: 30px; height: 30px; border-radius: 50%; background: var(--primary-tint); color: var(--primary);
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 12px; }

.content { padding: 22px 24px 40px; }

/* ===== 卡片 / 工具条 ===== */
.card { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); }
.toolbar {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 16px; flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
}
.toolbar .grow { flex: 1; }

.input, .select {
  border: 1px solid var(--line);
  background: #FBFBFD;
  border-radius: 10px;
  padding: 8px 12px;
  color: var(--ink);
  outline: none;
}
.input:focus, .select:focus { border-color: var(--primary); background: #fff; }
.input.search { width: 240px; }

.btn {
  border: none; border-radius: 10px; cursor: pointer;
  padding: 8px 16px; font-weight: 600; color: var(--ink);
  background: #F1F4F9;
}
.btn:hover { background: #E8EDF5; }
.btn.primary { background: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-deep); }
.btn.ghost { background: #fff; border: 1px solid var(--line); }
.btn.danger { background: #FFECEF; color: var(--red); }
.btn.sm { padding: 5px 10px; font-size: 12px; border-radius: 8px; }

/* ===== 表格 ===== */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left; font-size: 12px; color: var(--ink-3); font-weight: 600;
  padding: 12px 16px; border-bottom: 1px solid var(--line); white-space: nowrap;
}
td { padding: 13px 16px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #FAFBFE; }
td.name { font-weight: 600; }
td .sub { font-size: 12px; color: var(--ink-3); margin-top: 2px; }

.thumb { width: 44px; height: 44px; border-radius: 10px; background: linear-gradient(135deg, #DCE6FB, #EEF3FC);
  display: flex; align-items: center; justify-content: center; font-size: 18px; }

.pill { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.pill.green { background: #E6F8EE; color: #178A4C; }
.pill.orange { background: #FFF3E3; color: #B96F06; }
.pill.blue { background: var(--primary-tint); color: var(--primary); }
.pill.gray { background: #F1F4F9; color: var(--ink-2); }
.pill.red { background: #FFECEF; color: var(--red); }

.actions { display: flex; gap: 8px; }

.pager { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; font-size: 13px; color: var(--ink-2); }
.pager .pages { display: flex; gap: 6px; }
.pager .pages span { width: 30px; height: 30px; border-radius: 8px; display: flex; align-items: center; justify-content: center; cursor: pointer; }
.pager .pages span.on { background: var(--primary); color: #fff; }

/* ===== 统计卡 ===== */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 20px; }
.stat { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; }
.stat .k { font-size: 12px; color: var(--ink-3); }
.stat .v { font-size: 28px; font-weight: 800; letter-spacing: -.02em; margin-top: 6px; }
.stat .d { font-size: 12px; margin-top: 4px; }
.up { color: var(--green); }
.down { color: var(--red); }

.grid2 { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; }
.panel-head { padding: 14px 16px; border-bottom: 1px solid var(--line); font-weight: 700; font-size: 15px; }
.panel-body { padding: 16px; }

.list-item { display: flex; gap: 12px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); }
.list-item:last-child { border-bottom: none; }
.list-item .t { flex: 1; }
.list-item .t b { font-weight: 600; }
.list-item .t div { font-size: 12px; color: var(--ink-3); }

/* ===== 弹窗 ===== */
.mask {
  position: fixed; inset: 0; background: rgba(22, 27, 39, .45);
  display: none; align-items: center; justify-content: center; z-index: 50;
}
.mask.show { display: flex; }
.modal { width: 520px; max-width: 92vw; background: #fff; border-radius: 16px; overflow: hidden; }
.modal-head { padding: 16px 20px; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; font-weight: 700; }
.modal-body { padding: 20px; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--line); display: flex; justify-content: flex-end; gap: 10px; }

.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; color: var(--ink-2); margin-bottom: 6px; }
.field .input, .field .select { width: 100%; }
.field textarea.input { height: 76px; resize: vertical; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.close { cursor: pointer; color: var(--ink-3); font-size: 18px; line-height: 1; }

.empty { padding: 40px; text-align: center; color: var(--ink-3); }

@media (max-width: 1080px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .grid2 { grid-template-columns: 1fr; }
}

/* ===== 用户详情 ===== */
.detail-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 16px; }
.kv { display: flex; justify-content: space-between; align-items: center; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.kv:last-child { border-bottom: none; }
.kv span { color: var(--ink-3); }
.kv b { font-weight: 600; }
.score { display: flex; align-items: baseline; gap: 8px; }
.score .n { font-size: 32px; font-weight: 800; letter-spacing: -.02em; }
.plus { color: var(--green); font-weight: 600; }
.minus { color: var(--red); font-weight: 600; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); padding: 0 16px; }
.tabs a { padding: 11px 12px; font-size: 13px; color: var(--ink-2); border-bottom: 2px solid transparent; }
.tabs a.on { color: var(--primary); font-weight: 600; border-bottom-color: var(--primary); }
.chip { display: inline-flex; align-items: center; gap: 5px; background: #F1F4F9; border-radius: 999px; padding: 3px 10px; font-size: 12px; color: var(--ink-2); }
.user-cell { display: flex; align-items: center; gap: 10px; }
.user-cell .avatar-lg { width: 34px; height: 34px; border-radius: 50%; background: var(--primary-tint); color: var(--primary);
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 13px; }
@media (max-width: 1080px) { .detail-grid { grid-template-columns: 1fr; } }

/* ===== 图片上传 ===== */
.uploader {
  border: 1.5px dashed #C7D2E4; border-radius: 12px; padding: 10px;
  display: flex; gap: 12px; align-items: center; background: #FBFCFE;
}
.uploader .preview {
  width: 64px; height: 64px; border-radius: 10px; flex-shrink: 0;
  background: linear-gradient(135deg, #DCE6FB, #EEF3FC);
  display: flex; align-items: center; justify-content: center; font-size: 22px;
}
.uploader .up-info { flex: 1; min-width: 0; }
.uploader .up-name { font-size: 13px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.uploader .up-tip { font-size: 11px; color: var(--ink-3); margin: 3px 0 6px; }
.uploader .up-btns { display: flex; gap: 8px; }
.uploader .drop { width: 100%; text-align: center; color: var(--ink-3); font-size: 12px; padding: 14px 0; cursor: pointer; }
.uploader .drop b { display: block; font-size: 20px; color: var(--primary); margin-bottom: 4px; line-height: 1; }
.thumb-sm {
  width: 44px; height: 44px; border-radius: 10px; flex-shrink: 0;
  background: linear-gradient(135deg, #DCE6FB, #EEF3FC);
  display: flex; align-items: center; justify-content: center; font-size: 18px;
}

/* ===== 登录页 ===== */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #F3F5F9 0%, #E4ECFB 100%);
  padding: 24px;
}
.login {
  display: flex; width: 920px; max-width: 100%; background: #fff;
  border-radius: 20px; overflow: hidden; box-shadow: 0 24px 60px rgba(22, 27, 39, .12);
}
.login-side {
  width: 380px; flex-shrink: 0; color: #fff; padding: 40px 34px;
  background: linear-gradient(160deg, #2E7BFF 0%, #1B5FE0 100%);
  display: flex; flex-direction: column; justify-content: space-between;
}
.login-side .mark { display: flex; align-items: center; gap: 10px; }
.login-side .mark .logo {
  width: 38px; height: 38px; border-radius: 12px; background: rgba(255, 255, 255, .18);
  display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 17px;
}
.login-side .mark b { font-size: 16px; }
.login-side .mark span { display: block; font-size: 11px; opacity: .8; }
.login-side h2 { font-size: 26px; font-weight: 800; line-height: 1.4; margin: 28px 0 12px; }
.login-side p { font-size: 13px; opacity: .85; line-height: 1.8; }
.login-side .dots { display: flex; gap: 6px; margin-top: 26px; }
.login-side .dots i { width: 18px; height: 4px; border-radius: 999px; background: rgba(255, 255, 255, .35); }
.login-side .dots i.on { width: 34px; background: #fff; }
.login-side .foot { font-size: 11px; opacity: .7; }

.login-main { flex: 1; padding: 44px 44px; }
.login-main h3 { font-size: 24px; font-weight: 800; }
.login-main .tip { font-size: 13px; color: var(--ink-3); margin: 6px 0 26px; }
.login-main .field label { font-size: 12px; }
.login-main .input { width: 100%; }
.login-code { display: flex; gap: 10px; }
.login-code .input { flex: 1; }
.captcha {
  width: 124px; height: 44px; flex-shrink: 0; border-radius: 10px; cursor: pointer;
  background: linear-gradient(135deg, #EEF3FC, #E3EBFA);
  border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center; gap: 2px;
  user-select: none; position: relative; overflow: hidden;
}
.captcha i {
  font-style: normal; font-weight: 800; font-size: 20px; color: #2E7BFF;
  display: inline-block;
}
.captcha i:nth-child(1) { transform: rotate(-8deg); color: #1B5FE0; }
.captcha i:nth-child(2) { transform: rotate(6deg); color: #2E7BFF; }
.captcha i:nth-child(3) { transform: rotate(-4deg); color: #4A8BFF; }
.captcha i:nth-child(4) { transform: rotate(9deg); color: #1B5FE0; }
.captcha::before {
  content: ""; position: absolute; left: -10%; right: -10%; top: 50%; height: 1.5px;
  background: rgba(46, 123, 255, .35); transform: rotate(-12deg);
}
.captcha-hint { font-size: 11px; color: var(--ink-3); margin-top: 6px; }

.login-row { display: flex; align-items: center; justify-content: space-between; margin: 6px 0 22px; font-size: 13px; color: var(--ink-2); }
.login-row a { color: var(--primary); }
.login-btn { width: 100%; padding: 12px 0; font-size: 15px; border-radius: 12px; }
.login-alt { margin-top: 22px; font-size: 12px; color: var(--ink-3); text-align: center; }
.login-alt a { color: var(--primary); }
@media (max-width: 860px) {
  .login { flex-direction: column; }
  .login-side { width: 100%; padding: 28px 26px; }
  .login-main { padding: 30px 26px; }
}

/* ===== 右上角管理员菜单 ===== */
.admin-menu { position: relative; }
.admin-menu .trigger {
  display: flex; align-items: center; gap: 8px; cursor: pointer;
  padding: 4px 10px; border-radius: 12px;
}
.admin-menu .trigger:hover { background: #F7F9FC; }
.admin-menu .drop {
  display: none; position: absolute; right: 0; top: 112%; min-width: 190px;
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  box-shadow: 0 12px 32px rgba(22,27,39,.12); padding: 6px; z-index: 60;
}
.admin-menu .drop.show { display: block; }
.admin-menu .drop a {
  display: flex; align-items: center; gap: 8px; padding: 9px 10px;
  border-radius: 8px; font-size: 13px; color: var(--ink);
}
.admin-menu .drop a:hover { background: #F1F4F9; color: var(--primary); }
.admin-menu .drop .sep { height: 1px; background: var(--line); margin: 6px 4px; }