/* === 全局变量 === */
    :root {
      --bg: #0d1117;
      --card: #161b22;
      --border: #30363d;
      --text: #c9d1d9;
      --text-dim: #8b949e;
      --accent: #58a6ff;
      --green: #3fb950;
      --red: #f85149;
      --yellow: #d29922;
      --orange: #d15704;
      --purple: #bc8cff;
      --cyan: #39d2c0;
      --radius: 8px;
      --font-mono: 'JetBrains Mono', 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
      --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    }
    * { margin: 0; padding: 0; box-sizing: border-box; }
    .fas, .far { display: none; }
    body {
      font-family: var(--font-sans);
      background: var(--bg);
      color: var(--text);
      min-height: 100vh;
      padding: 24px 20px;
    }
    .container { max-width: 1200px; margin: 0 auto; }
    .account-panel {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
    }
    .account-panel .card-header { margin: 0; }
    .account-metrics { display: flex; gap: 18px; flex-wrap: wrap; flex: 1; }
    .account-metric { min-width: 110px; }
    .account-metric strong { display: block; font-size: 16px; color: var(--text); margin-top: 3px; }
    #tool-card[aria-disabled="true"] { opacity: .62; }
    #tool-card[aria-disabled="false"] { opacity: 1; }
    .btn:disabled { cursor: not-allowed; opacity: .5; }

    .card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 24px 20px;
      margin-bottom: 24px;
    }
    .card-header {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
      font-size: 18px;
      font-weight: 600;
      color: var(--text);
    }
    .card-header i {
      color: var(--accent);
      font-size: 20px;
      width: 28px;
    }
    .card-header .badge {
      font-size: 11px;
      background: rgba(88,166,255,0.15);
      color: var(--accent);
      padding: 2px 12px;
      border-radius: 20px;
      margin-left: 8px;
      font-weight: 400;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    @media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }

    textarea {
      width: 100%;
      min-height: 110px;
      resize: vertical;
      background: #0d1117;
      color: var(--text);
      border: 1px solid var(--border);
      border-radius: 4px;
      padding: 12px;
      font-family: var(--font-mono);
      font-size: 13px;
      line-height: 1.6;
      outline: none;
      transition: border-color 0.15s;
    }
    textarea:focus { border-color: var(--accent); }
    textarea::placeholder { color: #484f58; }
    textarea[readonly] { color: var(--text); }

    .btn {
      font-family: var(--font-sans);
      font-size: 13px;
      font-weight: 500;
      padding: 7px 16px;
      border-radius: 6px;
      border: 1px solid var(--border);
      background: #21262d;
      color: var(--text);
      cursor: pointer;
      transition: all 0.15s;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      white-space: nowrap;
    }
    .btn:hover { background: #30363d; border-color: var(--accent); }
    .btn-primary { background: #1f6feb; border-color: #1f6feb; color: #fff; }
    .btn-primary:hover { background: #388bfd; }
    .btn-success { border-color: var(--green); color: var(--green); }
    .btn-success:hover { background: rgba(63,185,80,0.12); }
    .btn-danger { border-color: var(--red); color: var(--red); }
    .btn-danger:hover { background: rgba(248,81,73,0.12); }
    .btn i { font-size: 14px; }

    .controls { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0 8px 0; }
    .hidden { display: none !important; }
    .mode-description {
      margin: 4px 0 0;
      color: var(--text-dim);
      font-size: 12px;
      line-height: 1.6;
    }
    .processing-mode-group { border-color: rgba(88,166,255,.42); }
    .output-mode-group { border-color: rgba(188,140,255,.48); }
    .output-mode-buttons {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      margin-bottom: 8px;
    }
    .output-mode-button {
      appearance: none;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: #161b22;
      color: var(--text);
      padding: 12px 14px;
      text-align: left;
      cursor: pointer;
      transition: border-color .15s, background .15s, box-shadow .15s;
    }
    .output-mode-button:hover { border-color: var(--accent); }
    .output-mode-button.active {
      border-color: var(--accent);
      background: rgba(31,111,235,.16);
      box-shadow: inset 0 0 0 1px rgba(88,166,255,.22);
    }
    .output-mode-button strong {
      display: block;
      font-size: 14px;
      margin-bottom: 4px;
      color: var(--text);
    }
    .output-mode-button span {
      display: block;
      color: var(--text-dim);
      font-size: 11px;
      line-height: 1.5;
    }
    .batch-result-panel { margin-top: 14px; }
    .batch-result-heading {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 10px;
    }
    .batch-result-heading strong { margin-right: 10px; }
    .batch-results { display: grid; gap: 10px; }
    .batch-result-card {
      border: 1px solid var(--border);
      border-radius: 7px;
      background: #0d1117;
      overflow: hidden;
    }
    .batch-result-card summary {
      cursor: pointer;
      padding: 11px 12px;
      display: flex;
      align-items: center;
      gap: 10px;
      list-style: none;
    }
    .batch-result-card summary::-webkit-details-marker { display: none; }
    .batch-result-card summary .batch-title { font-weight: 650; color: var(--accent); }
    .batch-result-card summary .batch-meta { color: var(--text-dim); font-size: 11px; flex: 1; }
    .batch-result-body { border-top: 1px solid var(--border); padding: 12px; }
    .batch-result-body textarea { min-height: 92px; }
    .batch-params {
      color: var(--text-dim);
      font-family: var(--font-mono);
      font-size: 11px;
      margin-bottom: 8px;
      overflow-wrap: anywhere;
    }

    .settings-group {
      background: #0d1117;
      border: 1px solid var(--border);
      border-radius: 6px;
      padding: 14px 14px 12px 14px;
      margin-bottom: 14px;
    }
    .settings-group h3 {
      font-size: 12px;
      font-weight: 600;
      color: var(--text-dim);
      text-transform: uppercase;
      letter-spacing: 0.4px;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .settings-group h3 i { font-size: 14px; color: var(--accent); }

    .settings-row {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
      margin-bottom: 8px;
    }
    .settings-row label {
      font-size: 12px;
      color: var(--text-dim);
      white-space: nowrap;
      display: flex;
      align-items: center;
      gap: 4px;
    }
    .settings-row input[type="number"] {
      width: 70px;
      background: #0d1117;
      border: 1px solid var(--border);
      color: var(--text);
      padding: 4px 8px;
      border-radius: 4px;
      font-family: var(--font-mono);
      font-size: 13px;
    }
    .settings-row select {
      background: #0d1117;
      border: 1px solid var(--border);
      color: var(--text);
      padding: 4px 8px;
      border-radius: 4px;
      font-size: 13px;
    }
    .settings-row input[type="radio"],
    .settings-row input[type="checkbox"] {
      accent-color: var(--accent);
      width: 14px;
      height: 14px;
    }

    .zw-pool-toggle {
      margin: 3px 0;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .zw-pool-toggle label {
      font-size: 12px;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 6px;
      color: var(--text-dim);
    }
    .zw-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
    }

    .stats-row {
      display: flex;
      flex-wrap: wrap;
      gap: 16px 28px;
      background: #0d1117;
      border-radius: 6px;
      padding: 12px 16px;
      margin-top: 10px;
      border: 1px solid var(--border);
    }
    .stats-row .stat-item {
      display: flex;
      align-items: baseline;
      gap: 6px;
      font-size: 13px;
    }
    .stats-row .stat-item .label {
      color: var(--text-dim);
      font-size: 12px;
    }
    .stats-row .stat-item .value {
      font-weight: 600;
      font-family: var(--font-mono);
      color: var(--text);
    }
    .stats-row .stat-item .value.accent { color: var(--yellow); }
    .stats-row .stat-item .value.limit-status {
      padding: 2px 8px;
      border-radius: 999px;
      font-family: var(--font-sans);
      font-size: 11px;
    }
    .limit-status.within-limit { color: var(--green); background: rgba(63,185,80,.12); }
    .limit-status.near-limit { color: var(--yellow); background: rgba(210,153,34,.13); }
    .limit-status.over-limit { color: var(--red); background: rgba(248,81,73,.13); }
    @media (max-width: 640px) {
      .output-mode-buttons { grid-template-columns: 1fr; }
    }

    .quick-ref-grid {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      justify-content: space-between;
    }
    .quick-ref-item {
      flex: 1;
      min-width: 150px;
      background: #0d1117;
      padding: 10px 12px;
      border-radius: 6px;
      border: 1px solid var(--border);
    }
    .quick-ref-item code {
      font-family: var(--font-mono);
      font-size: 11px;
      background: rgba(88,166,255,0.08);
      padding: 2px 6px;
      border-radius: 3px;
      display: block;
      margin-top: 4px;
      word-break: break-all;
      color: var(--accent);
    }
    .quick-ref-item .label {
      font-size: 11px;
      color: var(--text-dim);
    }

    .toast {
      position: fixed;
      bottom: 30px;
      left: 50%;
      transform: translateX(-50%);
      background: #21262d;
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 12px 24px;
      font-size: 13px;
      color: var(--text);
      opacity: 0;
      transition: opacity 0.25s, transform 0.25s;
      pointer-events: none;
      z-index: 999;
      box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    }
    .toast.show { opacity: 1; transform: translateX(-50%) translateY(-10px); }

    hr { border: none; border-top: 1px solid var(--border); margin: 16px 0; }

    .flex { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
    .gap-4 { gap: 4px; }
    .mt-8 { margin-top: 8px; }
    .mb-8 { margin-bottom: 8px; }
    .text-dim { color: var(--text-dim); font-size: 12px; }
    .mono { font-family: var(--font-mono); }
    .badge-sm {
      font-size: 10px;
      background: rgba(210,153,34,0.15);
      color: var(--yellow);
      padding: 1px 8px;
      border-radius: 12px;
    }
    .seed-info {
      font-size: 11px;
      color: var(--text-dim);
      margin-top: 4px;
      padding: 4px 8px;
      background: #0d1117;
      border-radius: 4px;
      border: 1px dashed var(--border);
      display: inline-block;
    }