:root {
      --bg: #f3f0ea; --paper: rgba(250,248,244,0.97); --ink: #1c1c1c; --muted: #5c5a56;
      --accent: #344e6e; --gold: #9a7b4f; --border: rgba(52,78,110,0.15);
      --shadow: 0 12px 40px rgba(28,28,28,0.08);
    }
    * { box-sizing: border-box; margin:0; padding:0; }
    body {
      min-height:100vh;
      font-family:var(--font-serif, "Noto Serif SC", serif);
      background:var(--bg); color:var(--ink); line-height:1.65;
    }
    .bg-pattern {
      position:fixed; inset:0; pointer-events:none; opacity:0.06; z-index:0;
      background-image:url('data:image/svg+xml,%3Csvg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"%3E%3Cpath d="M30 0L60 30 30 60 0 30z" fill="none" stroke="%23344e6e" stroke-width="1"/%3E%3C/svg%3E');
      background-size:48px 48px;
    }
    .wrap { position:relative; z-index:1; max-width:880px; margin:0 auto; padding:2rem 1.25rem 4rem; }

    .admin-entry-link {
      font-size:0.82rem; color:var(--muted); text-decoration:none;
      letter-spacing:0.06em; transition:color 0.2s;
    }
    .admin-entry-link:hover {
      color:var(--accent); text-decoration:underline;
    }

    /* Header */
    header { text-align:center; margin-bottom:2rem; padding-top:1rem; }
    header h1 {
      font-family:var(--font-serif, "Noto Serif SC", serif);
      font-size:2rem;
      font-weight:600; letter-spacing:0.12em; color:var(--accent);
    }
    header p { margin:0.5rem 0 0; color:var(--muted); font-size:0.95rem; }

    /* Step Indicator */
    .steps {
      display:flex; justify-content:center; gap:1rem 2rem; margin-bottom:2.5rem; flex-wrap:wrap;
    }
    .step {
      display:flex; align-items:center; gap:0.5rem; color:var(--muted);
      font-size:0.9rem; transition:color 0.3s; white-space:nowrap;
    }
    .step.active { color:var(--accent); }
    .step-num {
      flex-shrink:0; width:28px; height:28px; border-radius:50%;
      border:2px solid currentColor;
      display:flex; align-items:center; justify-content:center;
      font-size:0.8rem; font-weight:600;
    }
    .step.active .step-num { background:var(--accent); color:#fff; border-color:var(--accent); }
    .step.completed .step-num { background:var(--gold); color:#fff; border-color:var(--gold); }

    /* Cards */
    .card {
      background:var(--paper); border:1px solid var(--border);
      border-radius:4px; padding:1.75rem; margin-bottom:1.5rem;
      box-shadow:var(--shadow);
    }
    .card h2 {
      font-size:1.1rem; font-weight:600; margin:0 0 1.25rem;
      color:var(--accent); border-bottom:1px solid var(--border);
      padding-bottom:0.65rem;
    }

    /* Step Pages */
    .step-page { display:none; opacity:0; transition:opacity 0.3s ease; }
    .step-page.active { display:block; }
    .step-page.show { opacity:1; }

    /* Form Elements */
    .grid-2 { display:grid; grid-template-columns:1fr 1fr; gap:1.5rem; }
    @media (max-width:600px) { .grid-2 { grid-template-columns:1fr; } }
    .row { display:flex; flex-wrap:wrap; gap:0.75rem 1rem; align-items:flex-end; }
    label { display:flex; flex-direction:column; gap:0.35rem; font-size:0.85rem; color:var(--muted); }
    input, select {
      font-family:inherit; font-size:1rem; padding:0.55rem 0.75rem;
      border:1px solid var(--border); border-radius:2px; background:#fff;
      transition:border-color 0.2s;
    }
    input:focus, select:focus { outline:none; border-color:var(--accent); }
    button {
      display:inline-flex; align-items:center; justify-content:center; gap:0.5rem;
      font-family:inherit; cursor:pointer; padding:0.65rem 1.75rem; letter-spacing:0.05em;
      font-size:0.95rem; border:none; border-radius:4px;
      background:var(--accent); color:#fff; transition:all 0.3s ease;
      box-shadow:0 4px 12px rgba(52,78,110,0.15);
    }
    button:hover:not(:disabled) { transform:translateY(-2px); box-shadow:0 6px 16px rgba(52,78,110,0.25); filter:brightness(1.05); }
    button:active:not(:disabled) { transform:translateY(0); box-shadow:0 2px 8px rgba(52,78,110,0.15); filter:brightness(1); }
    button:disabled { opacity:0.55; cursor:not-allowed; box-shadow:none; }
    .btn-ghost { background:transparent; color:var(--accent); border:1px solid var(--accent); box-shadow:none; }
    .btn-ghost:hover:not(:disabled) { background:var(--accent); color:#fff; }
    .btn-gold { background:var(--gold); box-shadow:0 4px 12px rgba(154,123,79,0.2); }
    .btn-gold:hover:not(:disabled) { box-shadow:0 6px 16px rgba(154,123,79,0.3); }
    .btn-sm { padding:0.4rem 0.8rem; font-size:0.85rem; }

    /* Color Display */
    .swatch { width:100%; height:80px; border-radius:2px; border:1px solid var(--border); margin:0.75rem 0; }
    .meta { font-size:0.9rem; color:var(--muted); }
    .meta strong { color:var(--ink); font-weight:600; }
    .lucky-words {
      margin:1.25rem 0; padding:1.25rem;
      background:linear-gradient(135deg, rgba(52,78,110,0.08), rgba(154,123,79,0.08));
      border-left:4px solid var(--gold); border-radius:0 4px 4px 0;
      font-size:1.15rem; text-align:center; letter-spacing:0.1em;
      min-height:3.25rem;
    }
    .lucky-words.lucky-loading {
      color:var(--muted); font-size:1rem; letter-spacing:0.06em;
      animation:luckyPulse 1.25s ease-in-out infinite;
    }
    .lucky-loading-main { display:block; margin-bottom:0.4rem; font-size:1.05rem; }
    .lucky-loading-model {
      display:block; font-size:0.88rem; font-weight:600; color:var(--accent);
      letter-spacing:0.04em; opacity:0.92;
    }
    @keyframes luckyPulse {
      0%, 100% { opacity:1; }
      50% { opacity:0.55; }
    }
    .color-row { display:flex; gap:1rem; margin:1rem 0; }
    .color-item { flex:1; text-align:center; }
    .color-circle {
      width:60px; height:60px; border-radius:50%; margin:0 auto 0.5rem;
      border:3px solid #fff; box-shadow:0 4px 12px rgba(0,0,0,0.1);
    }
    .color-name { font-size:0.85rem; color:var(--muted); }
    .merge-preview {
      display:flex; align-items:center; justify-content:center; gap:1rem; margin:1.5rem 0;
    }
    .merge-arrow { color:var(--gold); font-size:1.5rem; }

    /* 家庭融合：一号 + 二号 → 三号 */
    .merge-flow {
      display:flex; flex-wrap:wrap; align-items:center; justify-content:center;
      gap:0.75rem 1rem; margin:1.25rem 0 1.5rem;
    }
    .merge-step {
      display:flex; flex-direction:column; align-items:center; text-align:center;
      min-width:96px;
    }
    .merge-step-result .color-circle {
      border-width:3px; border-color:#fff;
      box-shadow:0 4px 12px rgba(0,0,0,0.1);
    }
    .merge-label {
      font-size:0.78rem; color:var(--muted); letter-spacing:0.06em;
      margin-bottom:0.35rem;
    }
    .merge-op {
      color:var(--gold); font-size:1.35rem; font-weight:600; font-family:var(--font-serif, "Noto Serif SC", serif);
      padding:0 0.15rem; user-select:none;
    }

    /* Share Buttons */
    .share-section { margin-top:1.5rem; padding-top:1.5rem; border-top:1px solid var(--border); }
    .share-section h3 { font-size:0.95rem; color:var(--muted); margin-bottom:1rem; }
    .share-btns { display:flex; flex-wrap:wrap; gap:0.75rem; }
    .share-btn {
      display:inline-flex; align-items:center; gap:0.5rem;
      padding:0.6rem 1.25rem; border-radius:4px; font-size:0.85rem;
      color:var(--accent); background:transparent; border:1px solid var(--border);
      cursor:pointer; transition:all 0.2s;
    }
    .share-btn img, .share-btn svg { width:18px; height:18px; object-fit:contain; }
    .share-btn:hover { background:var(--bg); border-color:var(--accent); transform:translateY(-2px); box-shadow:var(--shadow); }
    .copy-tip { font-size:0.8rem; color:var(--accent); margin-top:0.5rem; }

    /* Color Palette Grid */
    .month-grid {
      display:grid;
      grid-template-columns:repeat(auto-fill, minmax(112px, 1fr));
      gap:0.75rem; margin-top:0.5rem;
    }
    .month-cell {
      border:1px solid var(--border); border-radius:4px; padding:0.75rem;
      background:#fff; text-align:center; transition:transform 0.2s, box-shadow 0.2s;
    }
    .month-cell:hover { transform:translateY(-3px); box-shadow:0 8px 20px rgba(0,0,0,0.08); }
    .month-cell .sw { height:48px; border-radius:2px; margin-bottom:0.5rem; }
    .month-cell .mnum { font-size:0.8rem; color:var(--muted); }
    .month-cell .mname { font-size:0.9rem; font-weight:600; color:var(--ink); margin-top:0.25rem; }

    /* Painting Section */
    .paint-grid { display:grid; grid-template-columns:1fr 1fr; gap:1.5rem; }
    @media (max-width:600px) { .paint-grid { grid-template-columns:1fr; } }
    .paint-canvas-wrap { position:relative; }
    #paintCanvas, #paintCanvasFx {
      display:block; width:100%; height:auto; max-height:min(48vh, 420px);
      border:1px solid var(--border); border-radius:2px; object-fit:contain;
    }
    #paintCanvasFx {
      position:absolute; left:0; top:0; pointer-events:none; display:none;
    }
    .ref-img { display:block; width:100%; height:auto; border:1px solid var(--border); border-radius:2px; }

    .color-palette { display:flex; gap:0.5rem; justify-content:center; margin:1rem 0; }
    .palette-c { width:40px; height:40px; border-radius:50%; border:3px solid #fff; box-shadow:0 2px 8px rgba(0,0,0,0.15); cursor:pointer; }

    /* Library Page */
    .library-nav { display:flex; gap:1rem; margin-bottom:1.5rem; }
    .lib-tab { padding:0.5rem 1.25rem; border-radius:2px; font-size:0.9rem; cursor:pointer; background:#fff; border:1px solid var(--border); transition:all 0.2s; }
    .lib-tab.active { background:var(--accent); color:#fff; border-color:var(--accent); }
    .lib-content { display:none; }
    .lib-content.active { display:block; }
    .pattern-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(200px, 1fr)); gap:1.5rem; }
    .pattern-item { border:1px solid var(--border); border-radius:4px; overflow:hidden; background:#fff; }
    .pattern-item img { display:block; width:100%; height:auto; }
    .pattern-info { padding:0.75rem; text-align:center; }
    .pattern-info .name { font-size:0.9rem; font-weight:600; }
    .pattern-info .desc { font-size:0.8rem; color:var(--muted); margin-top:0.25rem; }

    /* Navigation */
    .nav-btns { display:flex; justify-content:space-between; align-items:center; margin-top:2rem; padding-top:1.5rem; border-top:1px solid var(--border); }
    .nav-btns button { min-width: 160px; }
    .nav-link {
      display:inline-flex; align-items:center; position:relative;
      font-size:0.95rem; color:var(--muted); text-decoration:none;
      cursor:pointer; transition:all 0.3s ease;
    }
    .nav-link::after {
      content: ''; position:absolute; bottom:-4px; left:0; width:100%; height:1px;
      background:var(--accent); transform:scaleX(0); transform-origin:right; transition:transform 0.3s ease;
    }
    .nav-link:hover { color:var(--accent); }
    .nav-link:hover::after { transform:scaleX(1); transform-origin:left; }

    /* Toasts */
    .toast {
      position:fixed; bottom:2rem; left:50%; transform:translateX(-50%) translateY(100px);
      background:var(--ink); color:#fff; padding:0.75rem 1.5rem; border-radius:4px;
      font-size:0.9rem; opacity:0; transition:transform 0.3s, opacity 0.3s;
      z-index:1000;
    }
    .toast.show { transform:translateX(-50%) translateY(0); opacity:1; }

    /* Err */
    .err { color:#8b2942; font-size:0.9rem; margin-top:0.5rem; }
    .muted { color:var(--muted); font-size:0.85rem; }
    .member-count-btn { display:inline-flex; align-items:center; }
    .count-label {
      display:inline-block; padding:0.6rem 1.5rem; border-radius:4px;
      border:2px solid var(--border); background:#fff; font-size:1rem;
      transition:all 0.2s;
    }
    .member-count-btn input:checked + .count-label {
      border-color:var(--accent); background:var(--accent); color:#fff;
    }
    .member-count-btn:hover .count-label { border-color:var(--accent); }