body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:#f3f4f6;color:#1f2937}
a{color:#ea580c;text-decoration:none}
*{box-sizing:border-box}
.topbar{background:#ff8a00;color:#fff;padding:14px 20px;display:flex;align-items:center;justify-content:space-between}
.topbar h1{margin:0;font-size:18px;font-weight:700}
.topbar nav a{color:#fff;margin-left:16px;font-size:14px;opacity:.92}
.topbar nav a:hover{opacity:1;text-decoration:underline}
.wrap{max-width:1100px;margin:24px auto;padding:0 16px 40px}
.card{background:#fff;border-radius:12px;padding:20px;box-shadow:0 4px 16px rgba(0,0,0,.05);margin-bottom:16px}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;justify-content:space-between;margin-bottom:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;height:36px;padding:0 14px;border-radius:8px;border:0;background:#ff8a00;color:#fff;font-size:14px;cursor:pointer}
.btn:hover{background:#f57c00}
.btn-ghost{background:#fff;color:#374151;border:1px solid #d1d5db}
.btn-danger{background:#ef4444}
.btn-sm{height:30px;padding:0 10px;font-size:13px}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:12px 10px;border-bottom:1px solid #eee;text-align:left;vertical-align:middle}
th{color:#6b7280;font-weight:600;font-size:13px;background:#fafafa}
.thumb{width:72px;height:48px;object-fit:cover;border-radius:6px;background:#e5e7eb;display:block}
.tag{display:inline-block;padding:3px 8px;border-radius:6px;font-size:12px;background:#fff7ed;color:#c2410c}
.muted{color:#9ca3af;font-size:12px}
.flash{padding:12px 14px;border-radius:8px;margin-bottom:16px;font-size:14px}
.flash.ok{background:#ecfdf5;color:#047857}
.flash.err{background:#fef2f2;color:#b91c1c}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:800px){.form-grid{grid-template-columns:1fr}}
label{display:block;font-size:13px;color:#4b5563;margin-bottom:6px}
input[type=text],input[type=password],input[type=number],input[type=url],input[type=color],select,textarea{width:100%;border:1px solid #d1d5db;border-radius:8px;padding:10px 12px;font-size:14px;background:#fff}
textarea{min-height:90px;resize:vertical}
.full{grid-column:1/-1}
.help{font-size:12px;color:#9ca3af;margin-top:4px}
.preview{max-width:240px;max-height:140px;border-radius:8px;margin-top:8px;background:#eee;object-fit:cover;display:block}
.preview.banner-preview{max-width:360px;max-height:134px;width:100%;aspect-ratio:750/280}
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.login-box{width:100%;max-width:400px;background:#fff;border-radius:12px;padding:28px;box-shadow:0 8px 30px rgba(0,0,0,.08)}
.login-box h1{margin:0 0 6px;font-size:22px}
.login-box p{margin:0 0 20px;color:#6b7280;font-size:14px}
.switch{display:flex;align-items:center;gap:8px;font-size:14px}
.empty{text-align:center;color:#9ca3af;padding:40px 0}