.admin-body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:14px;color:#333;background:#f0f2f5;margin:0}
.admin-body *{box-sizing:border-box}
.admin-body a{text-decoration:none;color:inherit}
.admin-layout{display:flex;min-height:100vh}
.admin-sidebar{width:200px;background:#001529;color:rgba(255,255,255,.85);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100}
.admin-logo{padding:20px 16px;border-bottom:1px solid rgba(255,255,255,.1);text-align:center}
.admin-logo span{display:block;font-size:16px;font-weight:600;color:#fff}
.admin-logo small{display:block;font-size:12px;color:rgba(255,255,255,.5);margin-top:4px}
.admin-nav{flex:1;padding:12px 0}
.admin-nav-item{display:block;padding:12px 20px;color:rgba(255,255,255,.7);font-size:14px;transition:all .2s}
.admin-nav-item:hover{background:rgba(255,255,255,.08);color:#fff}
.admin-nav-item.active{background:#1890ff;color:#fff}
.admin-sidebar-footer{border-top:1px solid rgba(255,255,255,.1);padding:12px 0}
.admin-main{flex:1;margin-left:200px;display:flex;flex-direction:column;min-height:100vh}
.admin-topbar{background:#fff;padding:0 24px;height:56px;display:flex;align-items:center;justify-content:space-between;box-shadow:0 1px 4px rgba(0,0,0,.08);position:sticky;top:0;z-index:50}
.admin-page-title{font-size:18px;font-weight:600;margin:0}
.admin-user-info{font-size:14px;color:#666}
.admin-content{padding:24px;flex:1}
.admin-flash{padding:12px 20px;margin:0 24px 16px;border-radius:6px;font-size:14px}
.admin-flash.flash-success{background:#f6ffed;border:1px solid #b7eb8f;color:#389e0d}
.admin-flash.flash-error{background:#fff2f0;border:1px solid #ffccc7;color:#cf1322}
.admin-body .btn{display:inline-block;padding:6px 16px;border:1px solid transparent;border-radius:4px;font-size:14px;cursor:pointer;text-align:center;transition:all .2s;line-height:1.5}
.admin-body .btn-primary{background:#1890ff;color:#fff;border-color:#1890ff}
.admin-body .btn-primary:hover{background:#40a9ff}
.admin-body .btn-outline{background:#fff;color:#333;border-color:#d9d9d9}
.admin-body .btn-outline:hover{border-color:#1890ff;color:#1890ff}
.admin-body .btn-sm{padding:4px 12px;font-size:13px}
.admin-body .btn-lg{padding:10px 24px;font-size:15px}
.admin-body .btn-block{display:block;width:100%}
.admin-body .btn-link{background:none;border:none;color:#1890ff;cursor:pointer;padding:0 4px;font-size:14px}
.admin-body .btn-link:hover{text-decoration:underline}
.admin-body .btn-link.btn-danger{color:#ff4d4f}
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:#fff;border-radius:8px;padding:20px;display:flex;align-items:center;gap:16px;box-shadow:0 1px 3px rgba(0,0,0,.06)}
.stat-icon{width:48px;height:48px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}
.stat-blue{background:#e6f7ff}
.stat-green{background:#f6ffed}
.stat-orange{background:#fff7e6}
.stat-purple{background:#f9f0ff}
.stat-info{flex:1}
.stat-value{font-size:24px;font-weight:700;color:#222}
.stat-label{font-size:13px;color:#999;margin-top:2px}
.admin-panel{background:#fff;border-radius:8px;box-shadow:0 1px 3px rgba(0,0,0,.06);margin-bottom:20px}
.panel-header{padding:16px 20px;border-bottom:1px solid #f0f0f0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.panel-header h2{font-size:16px;margin:0}
.admin-table{width:100%;border-collapse:collapse;font-size:14px}
.admin-table th{background:#fafafa;padding:12px 16px;text-align:left;font-weight:600;color:#555;border-bottom:1px solid #f0f0f0;white-space:nowrap}
.admin-table td{padding:12px 16px;border-bottom:1px solid #f5f5f5;vertical-align:middle}
.admin-table tbody tr:hover{background:#fafafa}
.admin-thumb{width:48px;height:64px;object-fit:cover;border-radius:4px}
.admin-body .empty-state{text-align:center;padding:48px 20px;color:#999;font-size:14px}
.admin-body .empty-state a{color:#1890ff}
.admin-form{padding:20px}
.admin-form .form-row{display:flex;gap:16px}
.admin-form .form-group{flex:1;margin-bottom:16px}
.admin-form .form-group label{display:block;margin-bottom:6px;font-size:14px;color:#555;font-weight:500}
.admin-form .form-group input[type=text],.admin-form .form-group input[type=url],.admin-form .form-group input[type=number],.admin-form .form-group textarea,.admin-form .form-select{width:100%;padding:8px 12px;border:1px solid #d9d9d9;border-radius:4px;font-size:14px;transition:border-color .2s}
.admin-form .form-group input:focus,.admin-form .form-group textarea:focus,.admin-form .form-select:focus{outline:none;border-color:#1890ff;box-shadow:0 0 0 2px rgba(24,144,255,.1)}
.admin-form .form-group textarea{resize:vertical}
.admin-form .required{color:#ff4d4f}
.admin-form .form-hint{display:block;font-size:12px;color:#999;margin-top:4px}
.admin-form .file-input{padding:6px;font-size:13px}
.admin-form .checkbox-label{display:flex;align-items:center;gap:8px;cursor:pointer;font-weight:normal}
.admin-form .checkbox-label input{width:16px;height:16px}
.form-actions{padding-top:16px;border-top:1px solid #f0f0f0;display:flex;gap:12px;align-items:center}
.image-preview{margin-top:8px}
.image-preview img{max-width:160px;max-height:160px;border-radius:6px;border:1px solid #eee}
.image-preview.small img{max-width:100px;max-height:100px}
.login-body{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);min-height:100vh;display:flex;align-items:center;justify-content:center}
.login-container{width:100%;max-width:380px;padding:20px}
.login-card{background:#fff;border-radius:12px;padding:36px 32px;box-shadow:0 10px 40px rgba(0,0,0,.2)}
.login-header{text-align:center;margin-bottom:24px}
.login-header h1{font-size:22px;color:#222;margin-bottom:6px}
.login-header p{font-size:14px;color:#999}
.login-error{background:#fff2f0;border:1px solid #ffccc7;color:#cf1322;padding:10px 14px;border-radius:6px;margin-bottom:16px;font-size:14px}
.login-form .form-group{margin-bottom:16px}
.login-form .form-group label{display:block;margin-bottom:6px;font-size:14px;color:#555}
.login-form .form-group input{width:100%;padding:10px 14px;border:1px solid #d9d9d9;border-radius:6px;font-size:15px}
.login-form .form-group input:focus{outline:none;border-color:#1890ff;box-shadow:0 0 0 2px rgba(24,144,255,.1)}
.login-footer{margin-top:20px;text-align:center;font-size:13px;color:#999}
.login-footer p{margin-bottom:6px}
.login-footer a{color:#1890ff}

/* Collect page */
.collect-intro{padding:16px 20px;background:#f0f5ff;border-radius:0 0 8px 8px;font-size:13px;color:#555;line-height:1.8}
.collect-intro p{margin-bottom:4px}
.collect-error{padding:14px 20px;background:#fff2f0;border:1px solid #ffccc7;color:#cf1322;margin:0 20px 16px;border-radius:6px;font-size:14px}
.collect-tip{color:#999;font-size:13px;margin-left:12px}
#collectBtn:disabled{opacity:.6;cursor:not-allowed}