.nd-add{ --ink:#0f172a; --muted:#667085; --line:#e5e7eb; --shadow:0 10px 28px rgba(15,23,42,.08);
      --butter:#fff3c4; --butter-ink:#8a6a00; --soft:#f8fafc; font-family:inherit; color:var(--ink); margin:36px 0 18px;}
    .nd-wrap{max-width:1100px;margin:0 auto;padding:0 16px}

    /* headings */
    .nd-title{font-size:28px;line-height:1.2;text-align:center;margin:0 0 8px}
    .nd-lead{max-width:900px;margin:0 auto 18px;text-align:center;color:#344256}

    /* ---------- IMAGE PLACEHOLDER ---------- */
    .nd-image-placeholder {
      width: 100%;
      height: 500px;
      background-color: #f5f5f5;
      border: 1px dashed #ccc;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 20px 0;
      border-radius: 8px;
    }
    .nd-image-placeholder::before {
      content: "图片占位区";
      color: #999;
      font-size: 18px;
    }

    /* ---------- COLOR LIBRARY + PHILOSOPHY ---------- */
    .nd-colors{margin-top:22px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:18px}
    .nd-colors h3{font-size:22px;margin:0 0 8px;text-align:center}
    .nd-swatches{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
    .nd-swatch{background:#fff;border:1px solid #eceff3;border-radius:18px;overflow:hidden;box-shadow:0 6px 18px rgba(0,0,0,.05)}
    .nd-swatch .img{height:150px}
    .nd-swatch .img img{width:100%;height:100%;object-fit:cover;display:block}
    .nd-swatch .txt{padding:12px}
    .nd-swatch h4{margin:0 0 6px;font-size:16px}
    .nd-swatch p{margin:0;color:#344256;font-size:13px}
    @media (max-width:980px){.nd-swatches{grid-template-columns:repeat(3,1fr)}}
    @media (max-width:640px){
      .nd-swatches{grid-template-columns:1fr 1fr}
    }