/* ttk-admin-* 独立布局 — 不污染 legacy CSS */
.ttk-admin-root { box-sizing: border-box; margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: #0f1419; color: #e7ecf3; min-height: 100vh; }
.ttk-admin-root *, .ttk-admin-root *::before, .ttk-admin-root *::after { box-sizing: inherit; }
.ttk-admin-nav { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; padding: 12px 16px; background: #1a2332; border-bottom: 1px solid #2a3544; position: sticky; top: 0; z-index: 100; }
.ttk-admin-brand { font-weight: 700; font-size: 15px; color: #5b9cff; }
.ttk-admin-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.ttk-admin-tab { padding: 8px 14px; border-radius: 8px; text-decoration: none; color: #9aa8b8; font-size: 13px; font-weight: 600; background: #243044; }
.ttk-admin-tab.is-active { background: #2563eb; color: #fff; }
.ttk-admin-main { max-width: 1200px; margin: 0 auto; padding: 16px; }
.ttk-admin-card { background: #1a2332; border: 1px solid #2a3544; border-radius: 12px; padding: 16px; margin-bottom: 16px; }
.ttk-admin-card h2 { font-size: 15px; margin: 0 0 12px; color: #5b9cff; border-left: 3px solid #2563eb; padding-left: 8px; }
.ttk-admin-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.ttk-admin-stat { background: #243044; border-radius: 10px; padding: 14px; }
.ttk-admin-stat b { display: block; font-size: 22px; color: #fff; margin-top: 4px; }
.ttk-admin-stat span { font-size: 12px; color: #9aa8b8; }
.ttk-admin-btn { display: inline-block; padding: 10px 16px; border: none; border-radius: 8px; background: #2563eb; color: #fff; font-size: 14px; font-weight: 600; cursor: pointer; text-decoration: none; }
.ttk-admin-btn--danger { background: #dc3545; }
.ttk-admin-input { width: 100%; padding: 10px; border: 1px solid #2a3544; border-radius: 8px; background: #0f1419; color: #e7ecf3; font-size: 14px; margin-bottom: 10px; }
.ttk-admin-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.ttk-admin-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 600px; }
.ttk-admin-table th, .ttk-admin-table td { padding: 10px; border-bottom: 1px solid #2a3544; text-align: left; white-space: nowrap; }
.ttk-admin-table th { color: #9aa8b8; font-weight: 600; }
.ttk-admin-login { max-width: 400px; margin: 60px auto; }
.ttk-admin-alert { padding: 10px; border-radius: 8px; background: #3d2a00; color: #ffd666; margin-bottom: 12px; font-size: 13px; }
@media (max-width: 640px) {
  .ttk-admin-nav { flex-direction: column; align-items: flex-start; gap: 10px; }
  .ttk-admin-main { padding: 12px; }
}