:root {
  --primary: #10AEB9;
  --primary-dark: #0d949d;
  --accent: #3B82F6;
  --success: #16A34A;
  --warning: #F59E0B;
  --danger: #DC2626;
  --bg: #F5F7FA;
  --card: #FFFFFF;
  --text: #1F2937;
  --text-2: #6B7280;
  --border: #E5E7EB;
  --radius-card: 12px;
  --radius-btn: 8px;
}

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

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container { max-width: 960px; margin: 0 auto; padding: 0 16px; }

/* 顶栏 */
.nav {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.brand { font-size: 20px; font-weight: 700; color: var(--text); text-decoration: none; }
.brand .dot { color: var(--primary); }

/* 卡片 */
.card {
  background: var(--card);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}

/* 按钮 */
.btn {
  display: inline-block;
  border: none;
  border-radius: var(--radius-btn);
  padding: 10px 22px;
  font-size: 15px;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: opacity .15s;
}
.btn:hover { opacity: .88; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:disabled { background: #A7D9DC; cursor: not-allowed; }
.btn-ghost { background: var(--card); color: var(--text); border: 1px solid var(--border); }
.btn-danger { background: var(--card); color: var(--danger); border: 1px solid var(--danger); }
.btn-sm { padding: 4px 12px; font-size: 13px; }
.btn-block { display: block; width: 100%; }

/* 表单 */
label.field-label { display: block; font-size: 14px; color: var(--text-2); margin: 14px 0 6px; }
input[type=text], input[type=tel] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-family: inherit;
  outline: none;
}
input[type=text]:focus { border-color: var(--primary); }

/* 表格 */
.table-wrap { overflow-x: auto; background: var(--card); border-radius: var(--radius-card); box-shadow: 0 1px 3px rgba(0,0,0,.06); }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { padding: 9px 14px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; max-width: 260px; overflow: hidden; text-overflow: ellipsis; }
th { background: #FAFBFC; font-weight: 600; color: var(--text-2); position: sticky; top: 0; }
tbody tr:nth-child(even) { background: #FAFBFC; }
tbody tr:hover { background: #F0FAFB; }
td.cell-edit { cursor: cell; }
td.cell-edit:hover { background: #E8F7F8; }
.row-no { color: var(--text-2); font-size: 12px; text-align: right; }

/* stepper */
.stepper { display: flex; gap: 8px; margin-bottom: 20px; }
.step { flex: 1; text-align: center; font-size: 13px; color: var(--text-2); padding: 8px 0; border-bottom: 3px solid var(--border); }
.step.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.step.done { color: var(--success); border-bottom-color: var(--success); }

/* 徽标 / 提示 */
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; }
.badge-green { background: #DCFCE7; color: var(--success); }
.badge-gray { background: #F3F4F6; color: var(--text-2); }
.badge-orange { background: #FEF3C7; color: #B45309; }
.badge-red { background: #FEE2E2; color: var(--danger); }

.alert { border-radius: var(--radius-btn); padding: 12px 14px; font-size: 14px; margin: 12px 0; }
.alert-warn { background: #FEF3C7; color: #92400E; }
.alert-info { background: #E0F2F7; color: #155E75; }
.alert-error { background: #FEE2E2; color: #991B1B; }

.link { color: var(--primary); text-decoration: none; word-break: break-all; }
.muted { color: var(--text-2); font-size: 13px; }

/* checkbox 列 */
.check-cell { display: flex; gap: 14px; align-items: center; font-size: 13px; color: var(--text-2); white-space: nowrap; }
.check-cell label { display: flex; gap: 4px; align-items: center; cursor: pointer; }

/* hero */
.hero { text-align: center; padding: 64px 0 40px; }
.hero h1 { font-size: 34px; margin-bottom: 12px; }
.hero p { color: var(--text-2); font-size: 17px; margin-bottom: 28px; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin: 40px 0; }
.feature { padding: 20px; }
.feature h3 { margin: 8px 0; }
.feature p { color: var(--text-2); font-size: 14px; }

.footer { text-align: center; color: var(--text-2); font-size: 12px; padding: 32px 0; }

/* toast */
#toast {
  position: fixed; left: 50%; bottom: 32px; transform: translateX(-50%);
  background: var(--text); color: #fff; padding: 10px 20px; border-radius: 8px;
  font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 99;
}
#toast.show { opacity: .92; }

@media (max-width: 640px) {
  .hero h1 { font-size: 26px; }
  .card { padding: 16px; }
}