*{margin:0;padding:0;box-sizing:border-box;}
  :root{--red:#e63946;--bg:#0d0d0f;--bg2:#111114;--bg3:#18181c;--border:#1e1e22;--border2:#2a2a2e;--text:#e6e6e8;--muted:#777;--green:#2a9d8f;--blue:#7ab3e0;}
  body{font-family:"Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);min-height:100vh;}
  input,select,textarea{font-family:inherit;font-size:14px;color:var(--text);background:#1a1a1e;border:1px solid var(--border2);border-radius:8px;padding:9px 12px;width:100%;outline:none;transition:border .15s;}
  input:focus,select:focus,textarea:focus{border-color:var(--red);}
  select option{background:#1a1a1e;}
  textarea{resize:vertical;min-height:78px;}
  button{font-family:inherit;}
  a{color:inherit;text-decoration:none;}
  ::-webkit-scrollbar{width:5px;} ::-webkit-scrollbar-thumb{background:#2a2a2e;border-radius:3px;}
  #login-screen{display:flex;min-height:100vh;align-items:center;justify-content:center;padding:20px;}
  .login-box{background:var(--bg2);border:1px solid var(--border);border-radius:18px;padding:42px 38px;width:370px;box-shadow:0 24px 64px rgba(0,0,0,.5);}
  .login-logo{width:72px;height:72px;border-radius:16px;display:block;object-fit:cover;margin:0 auto 18px;box-shadow:0 8px 24px rgba(0,0,0,.35);}
  .login-box h2{text-align:center;font-size:20px;font-weight:800;margin-bottom:26px;}
  .login-box input{margin-bottom:12px;}
  .err{color:#ff7a7a;font-size:13px;min-height:20px;}
  .btn-login{width:100%;padding:12px;background:var(--red);border:none;border-radius:8px;color:#fff;font-weight:800;font-size:15px;cursor:pointer;margin-top:6px;}
  #admin-screen{display:none;min-height:100vh;flex-direction:column;}
  #topbar{background:var(--bg2);border-bottom:1px solid var(--border);height:58px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:100;}
  .topbar-left{display:flex;align-items:center;gap:14px;}
  .topbar-logo{width:32px;height:32px;border-radius:8px;display:block;object-fit:cover;}
  .topbar-title{font-weight:800;font-size:16px;}
  .topbar-right{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
  #user-badge{background:#1a1a1e;border:1px solid var(--border);border-radius:20px;padding:5px 12px;color:var(--red);font-weight:700;}
  .ghost-link,.btn-logout{padding:6px 12px;background:transparent;border:1px solid #333;border-radius:6px;color:var(--muted);cursor:pointer;font-size:13px;}
  .ghost-link:hover,.btn-logout:hover{border-color:var(--red);color:var(--red);}
  #body-wrap{display:flex;flex:1;}
  #sidebar{width:220px;background:var(--bg2);border-right:1px solid var(--border);padding:16px 0;position:sticky;top:58px;height:calc(100vh - 58px);overflow-y:auto;flex-shrink:0;}
  .nav-item{display:flex;align-items:center;gap:10px;padding:11px 20px;cursor:pointer;font-size:14px;color:var(--muted);border-left:3px solid transparent;transition:all .15s;user-select:none;}
  .nav-item:hover{color:var(--text);background:rgba(255,255,255,.03);}
  .nav-item.active{color:var(--red);background:rgba(230,57,70,.07);border-left-color:var(--red);}
  .nav-dot{width:8px;height:8px;border-radius:999px;background:currentColor;opacity:.85;}
  #main{flex:1;padding:28px;overflow-x:auto;}
  .page{display:none;} .page.active{display:block;}
  .page-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px;}
  .page-title{font-size:20px;font-weight:800;}
  .page-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;}
  .card{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:22px 24px;margin-bottom:20px;}
  .metric-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:24px;}
  .metric-card{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:18px 20px;border-top:3px solid var(--c);}
  .metric-label{font-size:12px;color:#666;margin-bottom:10px;}
  .metric-val{font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;}
  table{width:100%;border-collapse:collapse;font-size:13px;}
  th{text-align:left;padding:10px 14px;color:#666;border-bottom:1px solid var(--border);font-weight:600;white-space:nowrap;}
  td{padding:11px 14px;border-bottom:1px solid #16161a;vertical-align:middle;color:#ccc;}
  tr:last-child td{border-bottom:none;}
  .badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;white-space:nowrap;}
  .badge-red{background:rgba(230,57,70,.15);color:var(--red);}
  .badge-green{background:rgba(42,157,143,.15);color:var(--green);}
  .badge-gray{background:#1e1e22;color:#777;}
  .badge-blue{background:#162235;color:var(--blue);}
  .btn{padding:8px 16px;border:none;border-radius:7px;cursor:pointer;font-size:13px;font-weight:700;transition:all .15s;white-space:nowrap;}
  .btn-primary{background:var(--red);color:#fff;} .btn-primary:hover{background:#c1121f;}
  .btn-blue{background:#1e3a5f;color:var(--blue);} .btn-blue:hover{background:#254b78;}
  .btn-danger{background:#3d1a1a;color:#e88;} .btn-danger:hover{background:#4d2020;}
  .btn-gray{background:#1e1e22;color:#aaa;border:1px solid var(--border);} .btn-gray:hover{background:#252528;}
  .btn-sm{padding:5px 10px;font-size:12px;}
  .action-btns{display:flex;gap:6px;flex-wrap:wrap;}
  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
  .form-group{margin-bottom:14px;}
  .form-label{font-size:12px;color:#777;margin-bottom:6px;display:block;}
  .form-help{font-size:12px;color:#555;margin-top:6px;line-height:1.6;}
  .form-check{display:flex;align-items:center;gap:8px;font-size:14px;color:#aaa;}
  .form-check input[type=checkbox]{width:auto;}
  .upload-row{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center;}
  .upload-row input[type=file]{padding:7px;}
  .drop-zone{border:1px dashed #3a3a42;border-radius:12px;background:#151519;min-height:138px;display:flex;align-items:center;justify-content:center;text-align:center;padding:18px;cursor:pointer;transition:all .15s;outline:none;}
  .drop-zone:hover,.drop-zone.dragover,.drop-zone:focus{border-color:var(--red);background:rgba(230,57,70,.06);}
  .drop-zone input[type=file]{display:none;}
  .drop-zone-icon{width:32px;height:32px;margin:0 auto 9px;border:1px solid rgba(230,57,70,.42);border-radius:8px;position:relative;}
  .drop-zone-icon::before{content:"";position:absolute;left:50%;top:8px;width:8px;height:8px;border-left:2px solid var(--red);border-top:2px solid var(--red);transform:translateX(-50%) rotate(45deg);}
  .drop-zone-icon::after{content:"";position:absolute;left:50%;top:13px;width:2px;height:11px;background:var(--red);transform:translateX(-50%);}
  .drop-zone-title{font-size:14px;font-weight:800;color:#ddd;}
  .drop-zone-sub{font-size:12px;color:#666;margin-top:6px;line-height:1.5;}
  .upload-status{display:none;align-items:center;gap:10px;background:#151519;border:1px solid #222;border-radius:10px;padding:10px 12px;margin-top:10px;color:#aaa;font-size:13px;min-height:52px;}
  .upload-status.show{display:flex;}
  .upload-status.ok{border-color:rgba(42,157,143,.32);background:rgba(42,157,143,.06);color:#67c6b9;}
  .upload-status.error{border-color:rgba(230,57,70,.35);background:rgba(230,57,70,.06);color:#ff9a9a;}
  .upload-status-thumb{width:44px;height:44px;object-fit:cover;border-radius:8px;display:none;background:#111;flex-shrink:0;}
  .upload-status-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .hidden-field{display:none;}
  .img-thumb{width:68px;height:48px;object-fit:cover;border-radius:6px;background:#111;}
  .preview{width:100%;height:120px;object-fit:cover;border-radius:8px;margin-top:8px;display:none;background:#111;}
  .link-cell{max-width:230px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#666;font-size:12px;}
  .notice{background:rgba(230,57,70,.08);border:1px solid rgba(230,57,70,.22);border-radius:8px;padding:12px 14px;font-size:13px;color:#e99;margin-bottom:16px;line-height:1.7;}
  .list-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 14px;background:#1a1a1e;border-radius:8px;margin-bottom:8px;}
  .list-title{font-weight:700;color:#ddd;}
  .list-sub{font-size:12px;color:#666;margin-top:4px;}
  .modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.72);z-index:999;align-items:center;justify-content:center;padding:16px;}
  .modal-overlay.show{display:flex;}
  .modal-box{background:var(--bg2);border:1px solid var(--border2);border-radius:16px;padding:28px 30px;width:min(760px,96vw);max-height:90vh;overflow-y:auto;box-shadow:0 30px 90px rgba(0,0,0,.5);}
  .modal-box.narrow{width:min(430px,94vw);}
  .modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;}
  .modal-title{font-size:17px;font-weight:800;}
  .modal-close{background:none;border:none;color:#666;font-size:22px;cursor:pointer;line-height:1;}
  .modal-footer{display:flex;gap:10px;justify-content:flex-end;margin-top:20px;}
  .confirm-box{background:var(--bg2);border:1px solid #3a2020;border-radius:14px;padding:28px 32px;width:min(380px,94vw);text-align:center;}
  .confirm-msg{color:#aaa;font-size:14px;margin-bottom:22px;line-height:1.7;}
  .empty-row td{text-align:center;padding:36px;color:#444;}
  .source-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;}
  .source-list{display:grid;gap:9px;}
  .source-item{display:flex;align-items:center;justify-content:space-between;background:#1a1a1e;border:1px solid #222;border-radius:8px;padding:10px 12px;font-size:13px;}
  .toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:#19191e;border:1px solid #303038;color:#ddd;padding:10px 14px;border-radius:8px;font-size:13px;display:none;z-index:1000;}
  .toast.show{display:block;}
  @media(max-width:860px){
    #body-wrap{display:block;}
    #sidebar{position:static;width:100%;height:auto;display:flex;overflow-x:auto;border-right:none;border-bottom:1px solid var(--border);padding:8px;}
    .nav-item{border-left:none;border-bottom:2px solid transparent;padding:9px 12px;white-space:nowrap;}
    .nav-item.active{border-left:none;border-bottom-color:var(--red);}
    #main{padding:18px 14px;}
    .form-grid{grid-template-columns:1fr;}
    .page-header{align-items:flex-start;flex-direction:column;}
    #topbar{height:auto;min-height:58px;align-items:flex-start;gap:10px;padding:10px 14px;}
    .topbar-right{flex-wrap:wrap;justify-content:flex-end;}
  }