.fab-hub { position:fixed; bottom:24px; right:24px; z-index:9999; display:flex; flex-direction:column; align-items:flex-end; gap:10px; cursor:grab; }

    .fab-hub:active { cursor:grabbing; }



    /* Main toggle button */

    .fab-main {

      width:48px; height:48px; border-radius:50%;

      border:1px solid rgba(7,19,47,0.12); background:rgba(255,255,255,0.88);

      backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px);

      box-shadow:0 2px 14px rgba(7,19,66,0.14); cursor:pointer;

      display:grid; place-items:center; transition:all 0.2s ease;

      color:#60708f; user-select:none;

    }

    .fab-main:hover { transform:scale(1.08); box-shadow:0 4px 24px rgba(7,19,66,0.18); color:#0068ff; }

    .fab-main svg { width:22px; height:22px; transition:transform 0.3s ease; }

    .fab-main.open svg { transform:rotate(45deg); }



    /* Sub-action buttons */

    .fab-actions {

      display:flex; flex-direction:column; align-items:flex-end; gap:8px;

      opacity:0; transform:translateY(10px) scale(0.95);

      pointer-events:none;

      transition:opacity 0.22s ease, transform 0.22s ease;

    }

    .fab-actions.open { opacity:1; transform:translateY(0) scale(1); pointer-events:auto; }

    .fab-action-item {

      display:flex; align-items:center; gap:8px; cursor:pointer;

    }

    .fab-action-label {

      font-size:0.75rem; color:#07132f; white-space:nowrap;

      background:rgba(255,255,255,0.88); backdrop-filter:blur(8px);

      -webkit-backdrop-filter:blur(8px);

      padding:3px 10px; border-radius:12px;

      border:1px solid rgba(7,19,47,0.08);

      box-shadow:0 1px 4px rgba(7,19,66,0.06);

    }

    .fab-action-btn {

      width:42px; height:42px; border-radius:50%; border:1px solid rgba(7,19,47,0.1);

      background:rgba(255,255,255,0.92); backdrop-filter:blur(12px);

      box-shadow:0 2px 10px rgba(7,19,66,0.1); cursor:pointer;

      display:grid; place-items:center; transition:all 0.18s ease; color:#60708f;

    }

    .fab-action-btn:hover { transform:scale(1.1); color:#0068ff; box-shadow:0 4px 16px rgba(7,19,66,0.16); }

    .fab-action-btn svg { width:18px; height:18px; }



    /* Panels (feedback/tip/share) */

    .fab-panel {

      display:none; position:absolute; bottom:60px; right:0;

      min-width:320px; max-width:420px;

      background:rgba(255,255,255,0.96); border-radius:10px; border:1px solid rgba(7,19,47,0.1);

      box-shadow:0 8px 40px rgba(7,19,66,0.16); overflow:auto;

      backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px);

      resize:both;

    }

    .fab-panel.open { display:block; }

    .fab-panel-hdr {

      display:flex; align-items:center; justify-content:space-between;

      padding:14px 18px 8px;

    }

    .fab-panel-hdr h3 { font-size:0.92rem; font-weight:600; color:#07132f; margin:0; }

    .fab-panel-close {

      width:28px; height:28px; border-radius:50%; border:none;

      background:rgba(7,19,47,0.05); cursor:pointer; font-size:1.1rem;

      color:#60708f; display:grid; place-items:center; transition:all 0.15s;

    }

    .fab-panel-close:hover { background:rgba(7,19,47,0.1); color:#07132f; }

    .fab-panel-body { padding:16px 18px; }



    /* ── Feedback styles ── */

    .fb-editor {

      width:100%; min-height:100px; max-height:300px; padding:10px 12px;

      border:1px solid rgba(7,19,47,0.1); border-radius:8px;

      font:inherit; font-size:0.85rem; outline:none;

      background:#fff; color:#07132f; transition:border-color 0.15s;

      margin-bottom:10px; overflow-y:auto; line-height:1.6; resize:both; box-sizing:border-box;

    }

    .fb-editor:focus { border-color:#0068ff; }

    .fb-editor:empty::before { content:attr(placeholder); color:#a0aec0; pointer-events:none; }

    .fb-editor img { max-width:100%; border-radius:6px; margin:8px 0; border:1px solid rgba(7,19,47,0.08); }

    .fb-editor ul,.fb-editor ol { padding-left:20px; margin:4px 0; }

    .fb-toolbar { display:flex; gap:2px; margin-bottom:8px; flex-wrap:wrap; }

    .fb-tool-btn {

      width:28px; height:28px; border-radius:6px; border:none;

      background:transparent; cursor:pointer; font-size:0.78rem; color:#60708f;

      display:grid; place-items:center; transition:all 0.15s;

    }

    .fb-tool-btn:hover { background:rgba(0,104,255,0.08); color:#0068ff; }

    .fb-sep { width:1px; background:rgba(7,19,47,0.1); margin:0 4px; align-self:stretch; }

    .fab-input {

      width:100%; padding:10px 12px; margin-bottom:12px; box-sizing:border-box;

      border:1px solid rgba(7,19,47,0.1); border-radius:8px;

      font:inherit; font-size:0.85rem; outline:none;

      background:#fff; color:#07132f; transition:border-color 0.15s;

    }

    .fab-input:focus { border-color:#0068ff; }

    .fab-input::placeholder { color:#a0aec0; }

    .fab-btn {

      width:100%; padding:10px; border:none; border-radius:8px;

      background:linear-gradient(135deg,#0068ff,#3b82f6); color:#fff;

      font:inherit; font-size:0.88rem; font-weight:600; cursor:pointer;

      transition:opacity 0.15s;

    }

    .fab-btn:hover { opacity:0.9; }

    .fab-btn:disabled { opacity:0.5; cursor:default; }

    .fab-btn.secondary {

      background:rgba(7,19,47,0.06); color:#07132f; margin-top:8px;

    }

    .fab-msg { text-align:center; padding:16px; font-size:0.85rem; color:#60708f; }

    .fab-msg.success { color:#16a34a; }

    .fab-msg.error { color:#dc2626; }



    /* ── Tip panel styles ── */

    .tip-qr-wrap { text-align:center; padding:8px 0 16px; }

    .tip-qr-wrap img { width:180px; height:180px; border-radius:12px; border:1px solid rgba(7,19,47,0.1); }

    /* ── Tip Sticker Picker ── */

    .tip-sticker-picker { margin: 8px 0 12px; }

    .tip-sticker-cats { display: flex; gap: 4px; margin-bottom: 8px; flex-wrap: wrap; }

    .tip-sticker-cat { padding: 3px 10px; border-radius: 12px; border: 1px solid #e2e8f0; background: transparent; font-size: 0.72rem; color: #60708f; cursor: pointer; transition: all 0.15s; }

    .tip-sticker-cat.active { background: #07132f; color: white; border-color: #07132f; }

    .tip-sticker-cat:hover:not(.active) { background: #f0f4f8; }

    .tip-sticker-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; max-height: 220px; overflow-y: auto; }

    .tip-sticker-item { display: flex; flex-direction: column; align-items: center; cursor: pointer; padding: 4px 2px; border-radius: 8px; transition: all 0.15s; border: 2px solid transparent; }

    .tip-sticker-item:hover { background: #f0f4f8; }

    .tip-sticker-item.selected { border-color: #FFD54F; background: #FFFDE7; }

    .tip-sticker-item img { width: 42px; height: 42px; object-fit: contain; }

    .tip-sticker-item span { font-size: 0.62rem; color: #60708f; margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }

    .tip-sticker-selected { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 8px; min-height: 0; }

    .tip-sticker-tag { display: inline-flex; align-items: center; gap: 3px; padding: 2px 8px 2px 4px; background: #f0f4f8; border-radius: 12px; font-size: 0.72rem; color: #1a1a2e; }

    .tip-sticker-tag img { width: 18px; height: 18px; }

    .tip-sticker-tag button { background: none; border: none; cursor: pointer; color: #94a3b8; font-size: 0.8rem; padding: 0 0 0 2px; line-height: 1; }

    .tip-sticker-tag button:hover { color: #ef4444; }

    .tip-anon-toggle {

      display:flex; align-items:center; gap:8px; margin-bottom:12px;

      font-size:0.82rem; color:#60708f; cursor:pointer; user-select:none;

    }

    .tip-section-divider { text-align:center; color:#a0aec0; font-size:0.78rem; margin:12px 0; position:relative; }

    .tip-section-divider::before, .tip-section-divider::after {

      content:""; position:absolute; top:50%; width:40%; height:1px; background:rgba(7,19,47,0.08);

    }

    .tip-section-divider::before { left:0; } .tip-section-divider::after { right:0; }



    /* ── Share panel styles ── */

    .share-grid { display:flex; gap:12px; justify-content:center; margin-bottom:6px; flex-wrap:wrap; }

    .share-btn-item {

      display:flex; flex-direction:column; align-items:center; gap:6px;

      border:none; background:transparent; cursor:pointer; font:inherit; padding:4px;

      transition:transform 0.15s; min-width:64px;

    }

    .share-btn-item:hover { transform:scale(1.08); }

    .share-btn-item .share-icon-circle {

      width:48px; height:48px; border-radius:50%; display:grid; place-items:center;

      box-shadow:0 2px 10px rgba(0,0,0,0.12); transition:box-shadow 0.15s;

    }

    .share-btn-item:hover .share-icon-circle { box-shadow:0 4px 16px rgba(0,0,0,0.2); }

    .share-btn-item .share-icon-circle svg { width:22px; height:22px; color:#fff; }

    .share-btn-item .share-label { font-size:0.72rem; color:#60708f; }

    .share-url-row { display:flex; gap:6px; margin-top:12px; }

    .share-url-input {

      flex:1; padding:8px 12px; border:1px solid rgba(7,19,47,0.1); border-radius:8px;

      font:inherit; font-size:0.8rem; color:#60708f; background:#f9fafb; outline:none;

    }

    .share-copy-btn {

      padding:8px 16px; border:none; border-radius:8px;

      background:#0068ff; color:#fff; font:inherit; font-size:0.82rem; cursor:pointer;

      transition:opacity 0.15s; white-space:nowrap;

    }

    .share-copy-btn:hover { opacity:0.88; }



    @media(max-width:768px){

      .fab-panel { width:calc(100vw - 48px); right:0; }

      .fab-hub { bottom:16px; right:16px; }

    }

    /* ── Block Divider（管理端在 items 中插入的分割线模块） ─────── */
    .block-divider {
      display: flex;
      align-items: center;
      gap: 12px;
      color: var(--muted, #60708f);
      font-size: 0.78rem;
      letter-spacing: 0.04em;
      padding: 4px 0;
      user-select: none;
    }
    .block-divider-line {
      flex: 1 1 auto;
      height: 1px;
      background: rgba(7, 19, 47, 0.16);
    }
    .block-divider[data-style="dashed"] .block-divider-line {
      background: none;
      border-top: 1px dashed rgba(7, 19, 47, 0.22);
    }
    .block-divider[data-style="dotted"] .block-divider-line {
      background: none;
      border-top: 1px dotted rgba(7, 19, 47, 0.22);
    }
    .block-divider[data-style="solid"] .block-divider-line {
      height: 1px;
      background: rgba(7, 19, 47, 0.16);
      border: none;
    }
    .block-divider-label {
      flex: 0 0 auto;
      padding: 0 6px;
      color: var(--muted, #60708f);
      font-size: 0.93rem;
      font-weight: 600;
      white-space: nowrap;
    }
    /* 简单纯线（无 label） */
    .block-divider:not(:has(.block-divider-label)) .block-divider-line-before { flex: 1; }
    .block-divider:not(:has(.block-divider-label)) .block-divider-line-after { flex: 1; }





/* 2026-08-19: 答题时隐藏关于区原文，复用关于区空间（不另造暗色卡片） */
#about.eqz-on > :not(#eqz) { visibility: hidden; }