html-tools/offline.html at master · oxn/html-tools · GitHub

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<!doctype html>
<html lang="zh-CN">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>离线 - WebUtils</title>
    <style>
      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }

      :root {
        --bg: #0a0a0f;
        --text: #e8e8ed;
        --text-muted: #8888a0;
        --accent: #00f5d4;
      }

      @media (prefers-color-scheme: light) {
        :root {
          --bg: #f5f5f7;
          --text: #1a1a2e;
          --text-muted: #666;
          --accent: #06c;
        }
      }

      body {
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        background: var(--bg);
        color: var(--text);
        min-height: 100vh;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding: 20px;
        text-align: center;
      }

      .container {
        max-width: 400px;
      }

      .icon {
        font-size: 4rem;
        margin-bottom: 1.5rem;
        animation: float 3s ease-in-out infinite;
      }

      @keyframes float {
        0%,
        100% {
          transform: translateY(0);
        }
        50% {
          transform: translateY(-10px);
        }
      }

      h1 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
      }

      p {
        color: var(--text-muted);
        margin-bottom: 2rem;
        line-height: 1.6;
      }

      .retry-btn {
        background: var(--accent);
        color: #000;
        border: none;
        padding: 12px 24px;
        font-size: 1rem;
        font-weight: 500;
        border-radius: 8px;
        cursor: pointer;
        transition:
          transform 0.2s,
          opacity 0.2s;
      }

      .retry-btn:hover {
        transform: scale(1.05);
      }

      .retry-btn:active {
        transform: scale(0.98);
      }

      .cached-tools {
        margin-top: 3rem;
        padding-top: 2rem;
        border-top: 1px solid rgba(136, 136, 160, 0.2);
      }

      .cached-tools h2 {
        font-size: 1rem;
        color: var(--text-muted);
        margin-bottom: 1rem;
      }

      .cached-list {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        justify-content: center;
      }

      .cached-link {
        background: rgba(136, 136, 160, 0.1);
        color: var(--text);
        text-decoration: none;
        padding: 8px 12px;
        border-radius: 6px;
        font-size: 0.875rem;
        transition: background 0.2s;
      }

      .cached-link:hover {
        background: rgba(136, 136, 160, 0.2);
      }
    </style>
  </head>
  <body>
    <div class="container">
      <div class="icon">📡</div>
      <h1>您当前处于离线状态</h1>
      <p>无法连接到网络。请检查您的网络连接后重试。</p>
      <button class="retry-btn" onclick="location.reload()">重试连接</button>

      <div class="cached-tools" id="cached-tools" style="display: none">
        <h2>已缓存的工具</h2>
        <div class="cached-list" id="cached-list"></div>
      </div>
    </div>

    <script>
      // Show cached tools if available
      if ("caches" in window) {
        caches.open("webutils-v1").then((cache) => {
          cache.keys().then((requests) => {
            const tools = requests
              .map((req) => new URL(req.url))
              .filter((url) => url.pathname.startsWith("/tools/") && url.pathname.endsWith(".html"))
              .slice(0, 10);

            if (tools.length > 0) {
              const container = document.getElementById("cached-tools");
              const list = document.getElementById("cached-list");

              tools.forEach((url) => {
                const name = url.pathname.split("/").pop().replace(".html", "").replace(/-/g, " ");
                const link = document.createElement("a");
                link.href = url.pathname;
                link.className = "cached-link";
                link.textContent = name;
                list.appendChild(link);
              });

              container.style.display = "block";
            }
          });
        });
      }
    </script>
  </body>
</html>