*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Sans', 'Meiryo', sans-serif; color: #2d3748; background: #f0f2f5; }
.app-header { display:flex; justify-content:space-between; align-items:center; padding:18px 28px; color:#fff; background:linear-gradient(135deg,#1a365d,#2d4a7a); }
.app-header h1 { margin:0; font-size:20px; }
.header-sub { display:block; margin-top:4px; font-size:12px; opacity:.8; }
.header-right a { color:#fff; text-decoration:none; padding:7px 12px; border:1px solid rgba(255,255,255,.4); border-radius:6px; }
.main-content { max-width:1000px; margin:0 auto; padding:32px 24px 48px; }
.notice { padding:16px 18px; background:#fff8e1; border:1px solid #f6d365; border-radius:8px; margin-bottom:24px; }
.notice p { margin:6px 0 0; font-size:13px; }
.toolbar, .actions { display:flex; justify-content:space-between; align-items:center; gap:12px; margin-bottom:16px; }
.toolbar h2 { margin:0; font-size:18px; }
.brand-list { display:flex; flex-direction:column; gap:14px; }
.brand-card { padding:18px; background:#fff; border:1px solid #e2e8f0; border-radius:10px; box-shadow:0 1px 4px rgba(0,0,0,.06); }
.brand-card-header { display:flex; justify-content:space-between; align-items:center; gap:12px; margin-bottom:14px; }
.brand-card-title { font-size:16px; font-weight:700; color:#1a365d; }
.form-grid { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.form-group { display:flex; flex-direction:column; gap:5px; }
.form-group.full { grid-column:1 / -1; }
.form-group label { font-size:12px; font-weight:600; color:#5a6474; }
.form-control { width:100%; padding:9px 10px; border:1px solid #cbd5e0; border-radius:6px; font:inherit; }
.domain-row { display:flex; gap:8px; margin-top:6px; }
.domain-row .form-control { flex:1; }
.btn { border:1px solid transparent; border-radius:6px; padding:8px 14px; cursor:pointer; font:inherit; font-size:13px; }
.btn-primary { color:#fff; background:#2b6cb0; }
.btn-success { color:#fff; background:#38a169; }
.btn-outline { color:#4a5568; background:#fff; border-color:#cbd5e0; }
.btn-danger { color:#c53030; background:#fff; border-color:#fc8181; }
.btn:disabled { opacity:.5; cursor:not-allowed; }
.status { min-height:22px; margin-top:12px; font-size:13px; }
.status.success { color:#2f855a; }
.status.error { color:#c53030; }
@media (max-width:700px) { .app-header { padding:14px 16px; } .main-content { padding:24px 14px; } .form-grid { grid-template-columns:1fr; } .form-group.full { grid-column:auto; } }