Add 3D promo hero asset and refresh landing page visuals

Ariver

2026-06-06 c3afc017401957609edbec3fcea3bead1d7d06e7

 docs/index.html

@@ -5,7 +5,7 @@
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>TagLauncher — 标签化 Mac 应用启动器</title>
  <meta name="description" content="TagLauncher：用标签管理 Mac 应用，可滚动网格、多标签归类、应用备忘、布局备份。比 Launchpad 更适合应用很多的用户。">
  <meta property="og:image" content="https://shanghai3168.github.io/taglauncher/assets/screenshot-app-grid.jpg">
  <meta property="og:image" content="https://shanghai3168.github.io/taglauncher/assets/taglauncher-hero-3d-promo-2880x1800.jpg">
  <link rel="stylesheet" href="styles.css">
  <link rel="alternate" hreflang="en" href="index-en.html">
  <link rel="alternate" hreflang="zh-Hans" href="index.html">
@@ -50,17 +50,15 @@
        </div>
      </div>

      <div class="hero-visual" aria-hidden="true">
        <div class="icon-float">
          <img src="assets/app-icon-256.png" width="112" height="112" alt="TagLauncher 图标">
        </div>
        <figure class="device-shot shot-back">
          <img src="assets/screenshot-app-grid.jpg" alt="" loading="lazy">
      <figure class="hero-promo-3d" aria-hidden="true">
        <img
          src="assets/taglauncher-hero-3d-promo-2880x1800.jpg"
          alt=""
          width="2880"
          height="1800"
          loading="eager"
          decoding="async">
        </figure>
        <figure class="device-shot shot-front">
          <img src="assets/screenshot-notes.jpg" alt="" loading="lazy">
        </figure>
      </div>
    </section>

    <section class="showcase">