/* 页面头部 */
      .page-hero {
        margin-top: var(--nav-height);
        background: var(--dark);
        padding: 80px 48px;
        text-align: center;
        animation: fadeUp 0.8s ease both;
      }
      .page-tag {
        display: inline-block;
        color: var(--accent);
        font-size: 12px;
        letter-spacing: 3px;
        text-transform: uppercase;
        font-weight: 700;
        margin-bottom: 16px;
      }
      .page-hero h1 {
        color: white;
        font-size: clamp(32px, 5vw, 56px);
        font-weight: 900;
        letter-spacing: -1px;
        margin-bottom: 16px;
      }
      .page-hero p {
        color: rgba(255,255,255,0.5);
        font-size: 15px;
        font-weight: 300;
      }