:root {
  --primary: #0f766e;
  --primary-dark: #115e59;
  --primary-light: #14b8a6;
  --accent: #f59e0b;
  --danger: #dc2626;
  --success: #16a34a;
  --text: #1f2937;
  --text-light: #6b7280;
  --border: #e5e7eb;
  --bg: #f5f7fa;
  --card: #ffffff;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
    'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

.container { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

/* ------------------------------- 顶部导航 ------------------------------- */
.topbar {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  padding: 14px 0;
  box-shadow: var(--shadow);
}
.topbar .container {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.brand { font-size: 19px; font-weight: 700; color: #fff; letter-spacing: .5px; }
.brand small { font-size: 12px; opacity: .85; font-weight: 400; margin-left: 8px; }
.topbar nav a { color: rgba(255,255,255,.92); margin-left: 18px; font-size: 14px; }
.topbar nav a:hover { color: #fff; text-decoration: underline; }

/* --------------------------------- 通用 --------------------------------- */
.card {
  background: var(--card); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 20px; margin-bottom: 18px;
}
.page-title { font-size: 22px; font-weight: 700; margin: 22px 0 14px; }
.muted { color: var(--text-light); font-size: 13px; }

.btn {
  display: inline-block; padding: 9px 18px; border: 1px solid var(--primary);
  background: var(--primary); color: #fff; border-radius: 6px;
  font-size: 14px; cursor: pointer; transition: .15s; font-family: inherit;
}
.btn:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-outline { background: #fff; color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-sm { padding: 5px 12px; font-size: 13px; }
.btn-danger { background: #fff; color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text-light); }
.btn-ghost:hover { background: #f3f4f6; color: var(--text); border-color: var(--border); }

input, select, textarea {
  width: 100%; padding: 9px 11px; border: 1px solid var(--border);
  border-radius: 6px; font-size: 14px; font-family: inherit; background: #fff;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, .12);
}
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; color: #374151; }
.form-row { margin-bottom: 14px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }

.alert {
  padding: 10px 14px; border-radius: 6px; font-size: 14px; margin-bottom: 14px;
}
.alert-error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.alert-info { background: #eff6ff; color: #1e40af; border: 1px solid #bfdbfe; }

/* --------------------------------- 标签 --------------------------------- */
.tag {
  display: inline-block; padding: 2px 9px; border-radius: 20px;
  font-size: 12px; font-weight: 600; line-height: 1.7;
}
.tag-green { background: #dcfce7; color: #166534; }
.tag-blue { background: #dbeafe; color: #1e40af; }
.tag-amber { background: #fef3c7; color: #92400e; }
.tag-red { background: #fee2e2; color: #991b1b; }
.tag-gray { background: #f3f4f6; color: #4b5563; }

/* -------------------------------- 用户端 -------------------------------- */
.locate-bar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 12px 16px; background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow); margin: 18px 0; font-size: 14px;
}
.locate-bar .switch {
  color: var(--primary); cursor: pointer; font-weight: 600; font-size: 13px;
}
.city-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.city-chip {
  padding: 6px 14px; border: 1px solid var(--border); border-radius: 20px;
  background: #fff; font-size: 13px; cursor: pointer; transition: .15s; color: var(--text);
}
.city-chip:hover { border-color: var(--primary-light); color: var(--primary); }
.city-chip.active {
  background: var(--primary); color: #fff; border-color: var(--primary);
}
.city-chip .cnt { opacity: .65; font-size: 11px; margin-left: 4px; }

.store-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px;
}
.store-card {
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 18px; transition: .18s; border: 1px solid transparent;
}
.store-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0,0,0,.09); border-color: var(--primary-light);
}
.store-card h3 { margin: 0 0 8px; font-size: 17px; }
.store-card .meta { font-size: 13px; color: var(--text-light); margin-bottom: 4px; }
.store-card .rate-row { display: flex; gap: 16px; margin: 12px 0; }
.rate-item { flex: 1; background: #f8fafc; border-radius: 6px; padding: 8px 10px; }
.rate-item .k { font-size: 11px; color: var(--text-light); }
.rate-item .v { font-size: 16px; font-weight: 700; color: var(--primary); }
.store-card .foot {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border);
}

.empty {
  text-align: center; padding: 50px 20px; color: var(--text-light);
}
.empty .icon { font-size: 40px; margin-bottom: 10px; }

.store-detail h1 { font-size: 23px; margin: 0 0 6px; }
.info-list { list-style: none; padding: 0; margin: 0; }
.info-list li {
  display: flex; padding: 10px 0; border-bottom: 1px dashed var(--border); font-size: 14px;
}
.info-list li:last-child { border-bottom: none; }
.info-list .k { width: 92px; color: var(--text-light); flex-shrink: 0; }
.info-list .v { flex: 1; }

.liquidity-box { display: flex; gap: 12px; margin-top: 6px; }
.liquidity-item {
  flex: 1; border: 1px solid var(--border); border-radius: 8px; padding: 12px; text-align: center;
}
.liquidity-item .cur { font-size: 13px; font-weight: 700; color: var(--text-light); }
.liquidity-item .lvl { font-size: 15px; font-weight: 700; margin-top: 4px; }
.lvl-abundant { color: var(--success); }
.lvl-normal { color: var(--primary); }
.lvl-tight { color: var(--accent); }
.lvl-unknown { color: var(--text-light); }

/* --------------------------------- 后台 --------------------------------- */
.admin-wrap { display: flex; min-height: 100vh; }
.sidebar {
  width: 200px; background: #fff; border-right: 1px solid var(--border);
  padding: 18px 0; flex-shrink: 0;
}
.sidebar .logo {
  padding: 0 18px 16px; font-weight: 700; color: var(--primary);
  font-size: 17px; border-bottom: 1px solid var(--border); margin-bottom: 12px;
}
.sidebar a {
  display: block; padding: 10px 18px; color: var(--text);
  font-size: 14px; border-left: 3px solid transparent;
}
.sidebar a:hover { background: #f0fdfa; color: var(--primary); }
.sidebar a.active {
  background: #f0fdfa; color: var(--primary);
  border-left-color: var(--primary); font-weight: 600;
}
.sidebar .role-tip {
  padding: 12px 18px; font-size: 12px; color: var(--text-light);
  border-top: 1px solid var(--border); margin-top: 12px;
}
.admin-main { flex: 1; padding: 22px; overflow-x: hidden; min-width: 0; }
.admin-main h2 { margin: 0 0 18px; font-size: 21px; }

.stat-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px;
  margin-bottom: 20px;
}
.stat-card {
  background: #fff; border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow);
}
.stat-card .k { font-size: 12px; color: var(--text-light); }
.stat-card .v { font-size: 25px; font-weight: 700; color: var(--primary); margin-top: 2px; }
.stat-card .sub { font-size: 12px; color: var(--text-light); margin-top: 2px; }

.toolbar {
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 14px;
}
.toolbar .spacer { flex: 1; }
.toolbar input, .toolbar select { width: auto; min-width: 150px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; background: #fff; }
th, td { padding: 11px 12px; text-align: left; border-bottom: 1px solid var(--border); }
th { background: #f9fafb; font-weight: 600; font-size: 13px; color: #374151; }
tbody tr:hover { background: #fafafa; }
.table-wrap {
  background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow); overflow-x: auto;
}
td .actions { display: flex; gap: 6px; flex-wrap: wrap; }

.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12.5px; }
.addr-cell { max-width: 220px; word-break: break-all; }

/* -------------------------------- 弹窗 -------------------------------- */
.modal-mask {
  display: none; position: fixed; inset: 0; background: rgba(15,23,42,.5);
  z-index: 100; align-items: center; justify-content: center; padding: 20px;
}
.modal-mask.show { display: flex; }
.modal {
  background: #fff; border-radius: 12px; width: 100%; max-width: 520px;
  max-height: 88vh; overflow-y: auto; padding: 22px;
}
.modal h3 { margin: 0 0 16px; font-size: 18px; }
.modal-foot {
  display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px;
}

/* ------------------------------- 登录页 ------------------------------- */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px;
}
.login-box {
  background: #fff; border-radius: 12px; box-shadow: 0 8px 30px rgba(0,0,0,.1);
  padding: 34px; width: 100%; max-width: 380px;
}
.login-box h1 {
  font-size: 21px; margin: 0 0 6px; text-align: center; color: var(--primary);
}
.login-box .sub { text-align: center; color: var(--text-light); font-size: 13px; margin-bottom: 22px; }
.login-tip {
  margin-top: 18px; padding: 12px; background: #f8fafc; border-radius: 6px;
  font-size: 12px; color: var(--text-light); line-height: 1.8;
}

/* ------------------------------- 响应式 ------------------------------- */
@media (max-width: 768px) {
  .admin-wrap { flex-direction: column; }
  .sidebar { width: 100%; display: flex; overflow-x: auto; padding: 8px 0; border-right: none; border-bottom: 1px solid var(--border); }
  .sidebar .logo, .sidebar .role-tip { display: none; }
  .sidebar a { padding: 8px 14px; white-space: nowrap; border-left: none; border-bottom: 2px solid transparent; }
  .sidebar a.active { border-left: none; border-bottom-color: var(--primary); }
  .admin-main { padding: 14px; }
  .form-grid { grid-template-columns: 1fr; }
  .store-grid { grid-template-columns: 1fr; }
  .container { padding: 0 12px; }
  .liquidity-box { flex-direction: column; }
}