feat(presentation): add multi-page event presentation with navigation

This commit introduces a complete multi-page presentation system for the 20251012 event.

Key features include:
- **Page Structure:** Establishes the page flow with an entry point, a main cover scene, a committee list, and
individual speech video pages.
- **Real-time Chroma Key:** Implements a canvas-based green screen effect to composite a video onto a background image.
A control panel allows for real-time adjustment of keying parameters, position, and scale.
- **Unified Navigation:** A new `nav.js` script enables seamless navigation between pages using keyboard (arrow keys,
Enter), touch swipes, and on-screen buttons. The navigation logic follows a predefined sequence (entry -> main ->
committee -> speeches).
- **Dynamic Content:** The committee list page dynamically generates its content from a JavaScript data source.

20251012/commitee-list/background.js

@@ -0,0 +1,327 @@
+(function () {
+  // --- DOM & 元素 ---
+  const video = document.getElementById("video");
+  const mainCanvas = document.getElementById("mainCanvas");
+  const ctxMain = mainCanvas.getContext("2d", { alpha: true });
+
+  // temp canvas 用于视频帧处理
+  const tempCanvas = document.createElement("canvas");
+  const ctxTemp = tempCanvas.getContext("2d");
+
+  // 控件
+  const controlsPanel = document.getElementById("controlsPanel");
+  const closePanel = document.getElementById("closePanel");
+
+  const thresholdInput = document.getElementById("threshold");
+  const softnessInput = document.getElementById("softness");
+  const leftMarginInput = document.getElementById("leftMargin");
+  const topOffsetInput = document.getElementById("topOffset");
+  const scaleInput = document.getElementById("scale");
+  const rotationInput = document.getElementById("rotation");
+  const opacityInput = document.getElementById("opacity");
+
+  // labels
+  const thVal = document.getElementById("thVal");
+  const sfVal = document.getElementById("sfVal");
+  const marginVal = document.getElementById("marginVal");
+  const topVal = document.getElementById("topVal");
+  const scaleVal = document.getElementById("scaleVal");
+  const rotVal = document.getElementById("rotVal");
+  const opaVal = document.getElementById("opaVal");
+
+  // reset / help
+  const resetBtn = document.getElementById("resetBtn");
+  const applyHint = document.getElementById("applyHint");
+
+  // 默认参数
+  const defaults = {
+    threshold: 30,
+    softness: 10,
+    // leftMargin: 0,
+    // topOffset: -200,
+    // scalePercent: 125
+    leftMargin: 0,
+    topOffset: -200,
+    scalePercent: 125,
+    rotationDeg: 0,
+    opacityPercent: 100,
+  };
+
+  // 当前参数（init to defaults）
+  let THRESHOLD = defaults.threshold;
+  let SOFTNESS = defaults.softness;
+  let LEFT_MARGIN = defaults.leftMargin;
+  let TOP_OFFSET = defaults.topOffset;
+  let SCALE = defaults.scalePercent / 100;
+  let ROTATION = defaults.rotationDeg;
+  let OPACITY = defaults.opacityPercent / 100;
+
+  // 工具函数：同步控制值到 UI
+  function syncUI() {
+    thresholdInput.value = THRESHOLD;
+    softnessInput.value = SOFTNESS;
+    leftMarginInput.value = LEFT_MARGIN;
+    topOffsetInput.value = TOP_OFFSET;
+    scaleInput.value = Math.round(SCALE * 100);
+    rotationInput.value = ROTATION;
+    opacityInput.value = Math.round(OPACITY * 100);
+
+    thVal.textContent = THRESHOLD;
+    sfVal.textContent = SOFTNESS;
+    marginVal.textContent = LEFT_MARGIN;
+    topVal.textContent = TOP_OFFSET;
+    scaleVal.textContent = Math.round(SCALE * 100);
+    rotVal.textContent = ROTATION;
+    opaVal.textContent = Math.round(OPACITY * 100);
+  }
+
+  // 初始化 UI
+  syncUI();
+
+  // 事件监听：控件变化
+  thresholdInput.addEventListener("input", (e) => {
+    THRESHOLD = +e.target.value;
+    thVal.textContent = THRESHOLD;
+  });
+  softnessInput.addEventListener("input", (e) => {
+    SOFTNESS = +e.target.value;
+    sfVal.textContent = SOFTNESS;
+  });
+  leftMarginInput.addEventListener("input", (e) => {
+    LEFT_MARGIN = +e.target.value;
+    marginVal.textContent = LEFT_MARGIN;
+  });
+  topOffsetInput.addEventListener("input", (e) => {
+    TOP_OFFSET = +e.target.value;
+    topVal.textContent = TOP_OFFSET;
+  });
+  scaleInput.addEventListener("input", (e) => {
+    SCALE = +e.target.value / 100;
+    scaleVal.textContent = Math.round(SCALE * 100);
+  });
+  rotationInput.addEventListener("input", (e) => {
+    ROTATION = +e.target.value;
+    rotVal.textContent = ROTATION;
+  });
+  opacityInput.addEventListener("input", (e) => {
+    OPACITY = +e.target.value / 100;
+    opaVal.textContent = Math.round(OPACITY * 100);
+  });
+
+  // 重置
+  function resetParams() {
+    THRESHOLD = defaults.threshold;
+    SOFTNESS = defaults.softness;
+    LEFT_MARGIN = defaults.leftMargin;
+    TOP_OFFSET = defaults.topOffset;
+    SCALE = defaults.scalePercent / 100;
+    ROTATION = defaults.rotationDeg;
+    OPACITY = defaults.opacityPercent / 100;
+    syncUI();
+  }
+  resetBtn.addEventListener("click", resetParams);
+  document.addEventListener("keydown", (e) => {
+    if (e.key.toLowerCase() === "r") {
+      resetParams();
+    }
+    if (e.key.toLowerCase() === "c") {
+      toggleControls();
+    }
+  });
+
+  applyHint.addEventListener("click", () => {
+    alert(
+      "提示：\n• 若画面卡顿，请降低“缩放”或在代码中把 tempCanvas 缩小（注释内说明）。\n• 跨域资源需要 CORS。"
+    );
+  });
+
+  // 控件开关（可关闭/打开）
+  function hideControls() {
+    controlsPanel.style.display = "none";
+  }
+  function showControls() {
+    controlsPanel.style.display = "block";
+  }
+  function toggleControls() {
+    if (
+      controlsPanel.style.display === "none" ||
+      getComputedStyle(controlsPanel).display === "none"
+    )
+      showControls();
+    else hideControls();
+  }
+  closePanel.addEventListener("click", hideControls);
+
+  // 载入背景图（使用背景图做最终合成；如果你希望使用 CSS 背景而不是图片文件，可改这里）
+  const bgImg = new Image();
+  bgImg.src = "../assets/background.png";
+  bgImg.onload = () => {
+    // 等背景加载后设置主 canvas 大小
+    const w = bgImg.naturalWidth || 1080;
+    const h = bgImg.naturalHeight || Math.floor((w * 9) / 16);
+    mainCanvas.width = w;
+    mainCanvas.height = h;
+    mainCanvas.style.width = "100%";
+    mainCanvas.style.height = "auto";
+    // tempCanvas 尺寸以视频为准（或缩放以提高性能）
+    const vW = video.videoWidth || 720;
+    const vH = video.videoHeight || 1280;
+    // 性能提示：如果你的原始视频非常大，建议把 tempCanvas 设为更小的尺寸（比如 /2 或 /3）
+    tempCanvas.width = vW;
+    tempCanvas.height = vH;
+
+    // 如果 video 元数据还没准备好，等待 loadedmetadata 事件
+    if (video.readyState < 1) {
+      video.addEventListener(
+        "loadedmetadata",
+        () => {
+          requestAnimationFrame(loop);
+        },
+        { once: true }
+      );
+    } else {
+      requestAnimationFrame(loop);
+    }
+  };
+  bgImg.onerror = () => {
+    console.error("背景图片加载失败，请检查 background.png 路径与 CORS 设置。");
+    // 给 canvas 一个安全的大小以便继续
+    mainCanvas.width = 960;
+    mainCanvas.height = 540;
+    tempCanvas.width = 720;
+    tempCanvas.height = 1280;
+    requestAnimationFrame(loop);
+  };
+
+  // 主渲染循环
+  let lastTime = performance.now();
+  function loop(now) {
+    // 绘制背景
+    ctxMain.clearRect(0, 0, mainCanvas.width, mainCanvas.height);
+    if (bgImg.complete && bgImg.naturalWidth) {
+      ctxMain.drawImage(bgImg, 0, 0, mainCanvas.width, mainCanvas.height);
+    } else {
+      // fallback background
+      ctxMain.fillStyle = "#222";
+      ctxMain.fillRect(0, 0, mainCanvas.width, mainCanvas.height);
+    }
+
+    // 只有当视频可用时继续
+    if (!video.paused && !video.ended && video.readyState >= 2) {
+      // 将视频帧绘制到 tempCanvas（此处使用视频自身分辨率）
+      ctxTemp.clearRect(0, 0, tempCanvas.width, tempCanvas.height);
+      ctxTemp.drawImage(video, 0, 0, tempCanvas.width, tempCanvas.height);
+
+      // 处理像素（抠像）
+      let processed = false;
+      try {
+        const img = ctxTemp.getImageData(
+          0,
+          0,
+          tempCanvas.width,
+          tempCanvas.height
+        );
+        const data = img.data;
+        const len = data.length;
+        const threshold = THRESHOLD;
+        const softness = Math.max(1, SOFTNESS);
+
+        // // 基于平均亮度的简单抠像：黑色 -> 透明
+        // for (let i = 0; i < len; i += 4) {
+        //   const r = data[i],
+        //     g = data[i + 1],
+        //     b = data[i + 2];
+        //   const lum = (r + g + b) / 3;
+        //   if (lum < threshold) {
+        //     data[i + 3] = 0;
+        //   } else if (lum < threshold + softness) {
+        //     const t = (lum - threshold) / softness;
+        //     data[i + 3] = Math.round(255 * t);
+        //   } // else keep alpha
+        // }
+
+        // 基于绿色背景的抠像（Green Screen / Chroma Key）
+        for (let i = 0; i < len; i += 4) {
+          const r = data[i];
+          const g = data[i + 1];
+          const b = data[i + 2];
+
+          // “绿色程度”与“非绿色程度”的差距
+          const greenDiff = g - Math.max(r, b);
+
+          // 以 threshold / softness 控制去除强度和平滑边缘
+          if (greenDiff > threshold) {
+            data[i + 3] = 0; // 透明
+          } else if (greenDiff > threshold - softness) {
+            const t = (threshold - greenDiff) / softness;
+            data[i + 3] = Math.round(255 * t);
+          } // 其他保持原样
+        }
+
+        ctxTemp.putImageData(img, 0, 0);
+        processed = true;
+      } catch (err) {
+        // 可能因为跨域导致 SecurityError — 降级处理：不处理像素，直接绘制视频帧（但看不到透明）
+        if (err && err.name === "SecurityError") {
+          // 记录一次性警告到控制台
+          if (!window._crossOriginWarned) {
+            console.warn(
+              '无法读取像素（可能为跨域资源），请确认 video/background 的 CORS 设置（use crossorigin="anonymous" + Access-Control-Allow-Origin）。'
+            );
+            window._crossOriginWarned = true;
+          }
+          processed = false;
+        } else {
+          console.error("处理像素时发生错误：", err);
+        }
+      }
+
+      // 把（处理后或原始的）tempCanvas 绘制到主 canvas
+      // 计算目标大小（以主 canvas 的高度比例为基准）
+      const desiredHeightRatio = 0.9; // 视频占主画布高度的比例（可改）
+      const destH = Math.floor(mainCanvas.height * desiredHeightRatio);
+      const baseScale = destH / tempCanvas.height;
+      const destW = Math.floor(tempCanvas.width * baseScale);
+      const destX = LEFT_MARGIN;
+      const destY = Math.floor((mainCanvas.height - destH) / 2) + TOP_OFFSET;
+
+      // 应用用户控制的缩放、旋转、不透明度
+      const scaledW = destW * SCALE;
+      const scaledH = destH * SCALE;
+      const centerX = destX + scaledW / 2;
+      const centerY = destY + scaledH / 2;
+      const rotRad = (ROTATION * Math.PI) / 180;
+
+      ctxMain.save();
+      ctxMain.globalAlpha = OPACITY;
+
+      // translate -> rotate -> draw centered
+      ctxMain.translate(centerX, centerY);
+      ctxMain.rotate(rotRad);
+      // drawImage 参数：绘制 tempCanvas 的内容到以中心为原点的位置
+      ctxMain.drawImage(
+        tempCanvas,
+        -scaledW / 2,
+        -scaledH / 2,
+        scaledW,
+        scaledH
+      );
+
+      ctxMain.restore();
+
+      // 如果你想在无法处理像素（跨域）时仍然保持 alpha，必须确保视频资源启用 CORS 和服务器返回允许头
+      // 可在这里根据 processed 变量显示调试信息（未开启）
+    }
+
+    // 下一帧
+    requestAnimationFrame(loop);
+  }
+
+  // 自动播放策略：尝试播放视频（静音大多数浏览器允许）
+  video.play().catch(() => {
+    /* 静音应该可以自动播放，否则需用户交互触发 */
+  });
+
+  // 初始 UI 状态
+  syncUI();
+})();

20251012/commitee-list/commitee.js

@@ -0,0 +1,86 @@
+// 🎯 筹委会主要名单（简体）
+const committeeData = [
+  {
+    role: "主席",
+    name: "黄祖全（小龙）",
+    subRole: "副主席",
+    subName: "周秉聪",
+  },
+  { role: "总务", name: "江德景", subRole: "副总务", subName: "林泓明" },
+  { role: "文书", name: "苏俊文", subRole: "副文书", subName: "谢进勇" },
+  { role: "财政", name: "陈祖平", subRole: "副财政", subName: "郑礼靖" },
+  { role: "查账", name: "黄杨顺" },
+  { role: "交通", name: "胡千鸿", subRole: "副交通", subName: "颜楷庆" },
+  { role: "交际", name: "黄伟汉", subRole: "副交际", subName: "陈俊宇" },
+];
+
+// 🎯 工委名单
+const members = [
+  "蓝皓贤",
+  "黄寿琪",
+  "赵汶德",
+  "Dinesh",
+  "李善业",
+  "郑杰瑞",
+  "颜俊宇",
+  "黄靖杰",
+  "潘俊轩",
+  "张祥明",
+  "黄升文",
+  "陈照明",
+  "赵汶德",
+  "陈世勇",
+  "王畯杰",
+  "黄伟宏",
+  "杜恩浩",
+  "林育森",
+  "陈仲旺",
+  "刘伟杰",
+  "刘伟鸿",
+  "林鸿旺",
+];
+
+const body = document.getElementById("committeeBody");
+const membersGrid = document.getElementById("committeeMembers");
+
+// 🧩 动态生成主要职位（四列）
+committeeData.forEach((item) => {
+  // 正职
+  const roleEl = document.createElement("div");
+  roleEl.className = "text-yellow-300 font-semibold text-right pr-2";
+  roleEl.textContent = item.role;
+  body.appendChild(roleEl);
+
+  const nameEl = document.createElement("div");
+  nameEl.className = "text-left";
+  nameEl.textContent = item.name;
+  body.appendChild(nameEl);
+
+  // 副职（若存在）
+  if (item.subRole && item.subName) {
+    const subRoleEl = document.createElement("div");
+    subRoleEl.className = "text-yellow-300 font-semibold text-right pr-2";
+    subRoleEl.textContent = item.subRole;
+    body.appendChild(subRoleEl);
+
+    const subNameEl = document.createElement("div");
+    subNameEl.className = "text-left";
+    subNameEl.textContent = item.subName;
+    body.appendChild(subNameEl);
+  } else {
+    // 没有副职则补空格，保持四列对齐
+    const empty1 = document.createElement("div");
+    empty1.textContent = "";
+    const empty2 = document.createElement("div");
+    empty2.textContent = "";
+    body.appendChild(empty1);
+    body.appendChild(empty2);
+  }
+});
+
+// 🧩 工委名单生成（六列）
+members.forEach((name) => {
+  const div = document.createElement("div");
+  div.textContent = name;
+  membersGrid.appendChild(div);
+});

20251012/commitee-list/index.html

@@ -5,6 +5,7 @@
     <meta name="viewport" content="width=device-width,initial-scale=1" />
     <title>Canvas 实时抠像（可控面板）</title>
     <script src="https://cdn.jsdelivr.net/npm/@tailwindcss/browser@4"></script>
+    <script src="../scripts/nav.js"></script>
     <style type="text/tailwindcss">
       @theme {
         /* 🎨 定义自定义字体族变量 */
@@ -41,12 +42,16 @@
       }
     </style>
   </head>
- <body class="min-h-screen flex items-center justify-center bg-black text-white">
+  <body
+    class="min-h-screen flex items-center justify-center bg-black text-white"
+  >
     <div class="stage relative w-full h-screen overflow-hidden">
       <canvas id="mainCanvas" class="block w-full h-auto"></canvas>
 
       <!-- 标题 -->
-    <h1 class="absolute top-4 text-center w-full font-bai-ge text-8xl text-yellow-300">
+      <h1
+        class="absolute top-4 text-center w-full font-bai-ge text-8xl text-yellow-300"
+      >
         永平赵子龙庙
       </h1>
 
@@ -58,47 +63,37 @@
       </h2>
 
       <!-- 副标题实色层 -->
-    <h2 class="absolute top-28 text-center w-full font-bai-ge text-6xl text-red-500">
+      <h2
+        class="absolute top-28 text-center w-full font-bai-ge text-6xl text-red-500"
+      >
         庆祝赵子龙元帅暨众神圣诞千秋
       </h2>
 
-    <!-- 四句诗边框容器 -->
+      <!-- 筹委会名单（右侧） -->
       <div
-      class="absolute inset-0 flex items-center justify-between px-32 pointer-events-none"
+        id="committeeTable"
+        class="absolute right-8 top-48 bg-white/20 text-black rounded-3xl shadow-2xl backdrop-blur-xl p-6 font-tang-ying w-[1100px] border border-yellow-400/40"
       >
-      <p
+        <h3
-        class="font-gu-huang text-7xl leading-loose text-center text-transparent
+          class="text-6xl text-yellow-400 font-bai-ge mb-6 text-center drop-shadow-[0_0_8px_rgba(255,255,0,0.5)]"
-          [writing-mode:vertical-lr] [text-orientation:upright]
-          [-webkit-text-stroke:8px_black]"
         >
-        血染征袍透甲红<br>当阳谁敢与争锋
+          筹委会名单
-      </p>
+        </h3>
 
-      <p
+        <div id="committeeBody" class="grid grid-cols-4 text-4xl leading-relaxed"></div>
-        class="font-gu-huang text-7xl leading-loose text-center text-transparent
-          [writing-mode:vertical-rl] [text-orientation:upright]
-          [-webkit-text-stroke:8px_black]"
-      >
-        古来冲锋扶危主<br>唯有常山赵子龙
-      </p>
 
-    <!-- 四句诗容器 -->
+        <div class="mt-8">
+          <h4
+            class="text-4xl text-yellow-300 font-bai-ge mb-3 text-center drop-shadow-[0_0_6px_rgba(255,255,0,0.4)]"
+          >
+            工委
+          </h4>
           <div
-      class="absolute inset-0 flex items-center justify-between px-32 pointer-events-none"
+            id="committeeMembers"
-    >
+            class="grid grid-cols-6 gap-x-4 gap-y-2 text-3xl leading-relaxed text-center"
-      <p
+          ></div>
-        class="font-gu-huang text-7xl leading-loose text-center text-white
+        </div>
-          [writing-mode:vertical-lr] [text-orientation:upright]"
+      </div>
-      >
-        血染征袍透甲红<br>当阳谁敢与争锋
-      </p>
-
-      <p
-        class="font-gu-huang text-7xl leading-loose text-center text-white
-          [writing-mode:vertical-rl] [text-orientation:upright]"
-      >
-        古来冲锋扶危主<br>唯有常山赵子龙
-      </p>
 
       <!-- 来源资源：替换为你自己的文件，若跨域请加 crossorigin="anonymous" 并确保服务器允许 CORS -->
       <video
@@ -168,6 +163,7 @@
       </button>
     </div>
 
+    <script src="commitee.js"></script>
     <script src="background.js"></script>
   </body>
 </html>

20251012/index.html

@@ -0,0 +1,124 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width,initial-scale=1" />
+    <title>Canvas 实时抠像（可控面板）</title>
+    <script src="https://cdn.jsdelivr.net/npm/@tailwindcss/browser@4"></script>
+    <script src="scripts/nav.js"></script>
+    <style type="text/tailwindcss">
+      @theme {
+        --font-bai-ge: "BaiGeTianXing", sans-serif;
+        --font-gu-huang: "ShangShouGuHuang", sans-serif;
+        --font-tang-ying: "YeZiTangYingHei", sans-serif;
+
+        --color-default: #4f46e5;
+        --color-success: #10b981;
+        --color-warning: #f59e0b;
+        --color-danger: #ef4444;
+      }
+
+      @font-face {
+        font-family: "BaiGeTianXing";
+        src: url("fonts/字魂白鸽天行体.ttf") format("truetype");
+        font-display: swap;
+      }
+
+      @font-face {
+        font-family: "ShangShouGuHuang";
+        src: url("fonts/ShangShouGuHuangTi-2.ttf") format("truetype");
+        font-display: swap;
+      }
+
+      @font-face {
+        font-family: "YeZiTangYingHei";
+        src: url("fonts/YeZiGongChangTangYingHei-2.ttf") format("truetype");
+        font-display: swap;
+      }
+
+      canvas#mainCanvas {
+        image-rendering: optimizeQuality;
+      }
+
+      /* ✨ 按钮样式 */
+      .nav-button {
+        @apply px-12 py-6 rounded-2xl text-4xl font-bai-ge transition-all duration-300 shadow-lg;
+        background: linear-gradient(to right, #f59e0b, #facc15);
+        color: black;
+      }
+      .nav-button:hover {
+        @apply scale-105 shadow-2xl;
+        background: linear-gradient(to right, #fde68a, #fbbf24);
+      }
+    </style>
+  </head>
+
+  <body
+    class="min-h-screen flex items-center justify-center bg-black text-white"
+  >
+    <div class="stage relative w-full h-screen overflow-hidden">
+      <canvas id="mainCanvas" class="block w-full h-auto"></canvas>
+
+      <img
+        src="assets/background.png"
+        alt="Background"
+        class="absolute top-0 left-0 w-full h-full object-cover"
+      />
+
+      <!-- 标题 -->
+      <h1
+        class="absolute top-4 text-center w-full font-bai-ge text-8xl text-yellow-300"
+      >
+        永平赵子龙庙
+      </h1>
+
+      <!-- 副标题描边层 -->
+      <h2
+        class="absolute top-28 w-full text-center font-bai-ge text-6xl text-transparent [-webkit-text-stroke:4px_yellow]"
+      >
+        庆祝赵子龙元帅暨众神圣诞千秋
+      </h2>
+
+      <!-- 副标题实色层 -->
+      <h2
+        class="absolute top-28 text-center w-full font-bai-ge text-6xl text-red-500"
+      >
+        庆祝赵子龙元帅暨众神圣诞千秋
+      </h2>
+
+      <!-- 按钮居中区 -->
+      <div
+        class="absolute inset-0 flex flex-col items-center justify-center gap-16"
+      >
+        <button class="nav-button" onclick="goFullscreenAndRedirect('./main/')">
+          🏮 封面图展示
+        </button>
+
+        <button
+          class="nav-button"
+          onclick="goFullscreenAndRedirect('./commitee-list/')"
+        >
+          👥 筹委会名单
+        </button>
+      </div>
+    </div>
+
+    <script>
+      // 🌕 点击按钮 → 请求全屏 → 跳转
+      function goFullscreenAndRedirect(url) {
+        const docEl = document.documentElement;
+        if (docEl.requestFullscreen) {
+          docEl.requestFullscreen();
+        } else if (docEl.webkitRequestFullscreen) {
+          docEl.webkitRequestFullscreen();
+        } else if (docEl.msRequestFullscreen) {
+          docEl.msRequestFullscreen();
+        }
+
+        setTimeout(() => {
+          window.location.href = url;
+        }, 500);
+      }
+    </script>
+  </body>
+</html>

20251012/main.css

@@ -0,0 +1 @@
+@import "tailwindcss";

20251012/main/index.html

@@ -0,0 +1,175 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width,initial-scale=1" />
+    <title>Canvas 实时抠像（可控面板）</title>
+    <script src="https://cdn.jsdelivr.net/npm/@tailwindcss/browser@4"></script>
+    <script src="../scripts/nav.js"></script>
+    <style type="text/tailwindcss">
+      @theme {
+        /* 🎨 定义自定义字体族变量 */
+        --font-bai-ge: "BaiGeTianXing", sans-serif;
+        --font-gu-huang: "ShangShouGuHuang", sans-serif;
+        --font-tang-ying: "YeZiTangYingHei", sans-serif;
+
+        --color-default: #4f46e5;
+        --color-success: #10b981;
+        --color-warning: #f59e0b;
+        --color-danger: #ef4444;
+      }
+
+      @font-face {
+        font-family: "BaiGeTianXing";
+        src: url("../fonts/字魂白鸽天行体.ttf") format("truetype");
+        font-display: swap;
+      }
+
+      @font-face {
+        font-family: "ShangShouGuHuang";
+        src: url("../fonts/ShangShouGuHuangTi-2.ttf") format("truetype");
+        font-display: swap;
+      }
+
+      @font-face {
+        font-family: "YeZiTangYingHei";
+        src: url("../fonts/YeZiGongChangTangYingHei-2.ttf") format("truetype");
+        font-display: swap;
+      }
+
+      canvas#mainCanvas {
+        image-rendering: optimizeQuality;
+      }
+    </style>
+  </head>
+  <body
+    class="min-h-screen flex items-center justify-center bg-black text-white"
+  >
+    <div class="stage relative w-full h-screen overflow-hidden">
+      <canvas id="mainCanvas" class="block w-full h-auto"></canvas>
+
+      <!-- 标题 -->
+      <h1
+        class="absolute top-4 text-center w-full font-bai-ge text-8xl text-yellow-300"
+      >
+        永平赵子龙庙
+      </h1>
+
+      <!-- 副标题描边层 -->
+      <h2
+        class="absolute top-28 w-full text-center font-bai-ge text-6xl text-transparent [-webkit-text-stroke:4px_yellow]"
+      >
+        庆祝赵子龙元帅暨众神圣诞千秋
+      </h2>
+
+      <!-- 副标题实色层 -->
+      <h2
+        class="absolute top-28 text-center w-full font-bai-ge text-6xl text-red-500"
+      >
+        庆祝赵子龙元帅暨众神圣诞千秋
+      </h2>
+
+      <!-- 四句诗边框容器 -->
+      <div
+        class="absolute inset-0 flex items-center justify-between px-32 pointer-events-none"
+      >
+        <p
+          class="font-gu-huang text-7xl leading-loose text-center text-transparent [writing-mode:vertical-lr] [text-orientation:upright] [-webkit-text-stroke:8px_black]"
+        >
+          血染征袍透甲红<br />当阳谁敢与争锋
+        </p>
+
+        <p
+          class="font-gu-huang text-7xl leading-loose text-center text-transparent [writing-mode:vertical-rl] [text-orientation:upright] [-webkit-text-stroke:8px_black]"
+        >
+          古来冲锋扶危主<br />唯有常山赵子龙
+        </p>
+      </div>
+      <!-- 四句诗容器 -->
+      <div
+        class="absolute inset-0 flex items-center justify-between px-32 pointer-events-none"
+      >
+        <p
+          class="font-gu-huang text-7xl leading-loose text-center text-white [writing-mode:vertical-lr] [text-orientation:upright]"
+        >
+          血染征袍透甲红<br />当阳谁敢与争锋
+        </p>
+
+        <p
+          class="font-gu-huang text-7xl leading-loose text-center text-white [writing-mode:vertical-rl] [text-orientation:upright]"
+        >
+          古来冲锋扶危主<br />唯有常山赵子龙
+        </p>
+      </div>
+
+      <!-- 来源资源：替换为你自己的文件，若跨域请加 crossorigin="anonymous" 并确保服务器允许 CORS -->
+      <video
+        id="video"
+        class="hidden"
+        playsinline
+        muted
+        loop
+        autoplay
+        src="../assets/赵云绿幕.mp4"
+      ></video>
+
+      <!-- Controls 面板（可关闭） -->
+      <div
+        class="absolute right-2 top-2 w-[320px] bg-white p-2 rounded-md hidden"
+        id="controlsPanel"
+        role="region"
+        aria-label="视频抠像控制面板"
+      >
+        <h4>
+          控制面板
+          <button class="close-btn" id="closePanel" title="关闭面板">✕</button>
+        </h4>
+
+        <div class="grid grid-cols-2 grid-rows-7">
+          <label>黑色阈值: <span id="thVal">30</span></label>
+          <input type="range" id="threshold" min="0" max="120" value="30" />
+
+          <label>羽化（softness）: <span id="sfVal">30</span></label>
+          <input type="range" id="softness" min="0" max="120" value="30" />
+
+          <label>左侧偏移 X (px): <span id="marginVal">40</span></label>
+          <input type="range" id="leftMargin" min="0" max="800" value="40" />
+
+          <label>顶部偏移 Y (px): <span id="topVal">0</span></label>
+          <input type="range" id="topOffset" min="-400" max="400" value="0" />
+
+          <label>缩放（%）: <span id="scaleVal">90</span></label>
+          <input type="range" id="scale" min="20" max="200" value="90" />
+
+          <label>旋转（deg）: <span id="rotVal">0</span></label>
+          <input type="range" id="rotation" min="-45" max="45" value="0" />
+
+          <label>不透明度: <span id="opaVal">100</span>%</label>
+          <input type="range" id="opacity" min="0" max="100" value="100" />
+        </div>
+
+        <div style="display: flex; gap: 6px; margin-top: 8px">
+          <button
+            id="resetBtn"
+            class="flex-1 bg-danger rounded-md cursor-pointer"
+          >
+            重置 (R)
+          </button>
+          <button
+            id="applyHint"
+            class="flex-1 bg-warning rounded-md cursor-pointer"
+          >
+            帮助
+          </button>
+        </div>
+      </div>
+
+      <!-- 当面板关闭时显示的打开按钮 -->
+      <button id="openBtn" class="open-controls" style="display: none">
+        打开控制面板
+      </button>
+    </div>
+
+    <script src="background.js"></script>
+  </body>
+</html>

20251012/main/main.css

@@ -0,0 +1,3 @@
+@import "tailwindcss";
+
+

20251012/scripts/nav.js

@@ -0,0 +1,378 @@
+/* nav-20251012.js
+   作者：ChatGPT（为你量身定制）
+   功能：按键/触摸导航 —— 支持：入口 /main/ /commitee-list/ /speech/x.html
+   将此文件在 /20251012/ 相关页面引入即可。
+*/
+
+(function () {
+  "use strict";
+
+  // ========== 配置 ==========
+  const CONFIG = {
+    // 如果没有在 URL 中检测到 8 位日期段，可以在这里硬编码入口（以 '/' 开头并以 '/' 结尾）
+    // 例如 '/20251012/'。若保留 null 会自动从 location.pathname 中寻找第一个 8 位数字段。
+    FORCE_BASE: null, // '/20251012/', or null to auto-detect
+
+    // 如果页面中没有可被自动发现的 speech/x.html 链接，设置一个最大页数（整数 > 0）
+    FALLBACK_SPEECH_COUNT: 3,
+
+    // 当在最后一页按 "下一页" 时的行为： 'wrap' | 'toRoot' | 'noop'
+    ON_FINAL_NEXT: "toRoot", // 推荐 'toRoot'（回到入口）或 'wrap'（回到第一篇）
+
+    // 是否使用 history.pushState 做平滑跳转（默认 true），设 false 则使用 location.href 真正跳转
+    USE_PUSHSTATE: true,
+
+    // 显示键位提示面板（true/false）
+    SHOW_HELP_OVERLAY: true,
+  };
+
+  // ========== 工具函数 ==========
+  function normalizePath(p) {
+    if (!p) return "/";
+    // ensure starts with /
+    if (!p.startsWith("/")) p = "/" + p;
+    // ensure trailing slash for directory-like paths, except for filenames like .html
+    if (!p.endsWith("/") && !p.match(/\.\w+$/)) p = p + "/";
+    return p;
+  }
+
+  function detectBaseFromPath() {
+    if (CONFIG.FORCE_BASE) return normalizePath(CONFIG.FORCE_BASE);
+    // find first /YYYYMMDD/ in pathname
+    const m = location.pathname.match(/\/(\d{8})(?:\/|$)/);
+    if (m) return `/${m[1]}/`;
+    // fallback: try first path segment if looks like a date
+    const segs = location.pathname.split("/").filter(Boolean);
+    if (segs.length && /^\d{8}$/.test(segs[0])) return `/${segs[0]}/`;
+    // last resort
+    return "/20251012/";
+  }
+
+  const BASE = detectBaseFromPath();
+  const MAIN = normalizePath(BASE + "main");
+  const COMMITEE = normalizePath(BASE + "commitee-list");
+  const SPEECH_PREFIX = normalizePath(BASE + "speech"); // like '/20251012/speech/'
+
+  function isRoot(pathname) {
+    const p = normalizePath(pathname);
+    return (
+      p === normalizePath(BASE) || p === normalizePath(BASE.replace(/\/$/, ""))
+    );
+  }
+  function isMain(pathname) {
+    return normalizePath(pathname) === MAIN;
+  }
+  function isCommitee(pathname) {
+    return normalizePath(pathname) === COMMITEE;
+  }
+  function isSpeech(pathname) {
+    // match /.../speech/x.html or /.../speech/x (with or without trailing slash)
+    const m = pathname.match(/\/speech\/(\d+)(?:\.html)?(?:\/|$)/);
+    return m ? parseInt(m[1], 10) : null;
+  }
+
+  // detect available speech pages by scanning <a> tags in the current document
+  function detectSpeechPagesFromLinks() {
+    const anchors = Array.from(document.querySelectorAll("a[href]"));
+    const nums = new Set();
+    const basePattern = new RegExp(
+      "^" + SPEECH_PREFIX.replace(/\/$/, "\\/") + "(\\d+)(?:\\.html)?(?:\\/?$)"
+    );
+    anchors.forEach((a) => {
+      try {
+        const href = a.getAttribute("href");
+        // convert relative -> absolute path (only pathname part)
+        const tmp = new URL(href, location.href);
+        const path = tmp.pathname;
+        const m = path.match(/\/speech\/(\d+)(?:\.html)?(?:\/|$)/);
+        if (m) nums.add(parseInt(m[1], 10));
+      } catch (e) {
+        // ignore
+      }
+    });
+    if (nums.size === 0) return null;
+    return Array.from(nums).sort((a, b) => a - b);
+  }
+
+  // Determine speech pages list
+  const detectedSpeechList = detectSpeechPagesFromLinks();
+  let SPEECH_LIST = null; // array of numbers like [1,2,3]
+  if (detectedSpeechList && detectedSpeechList.length > 0) {
+    SPEECH_LIST = detectedSpeechList;
+  } else {
+    // fallback to 1..FALLBACK_SPEECH_COUNT
+    const n = Math.max(1, Math.floor(CONFIG.FALLBACK_SPEECH_COUNT));
+    SPEECH_LIST = Array.from({ length: n }, (_, i) => i + 1);
+  }
+
+  function speechUrl(n) {
+    // return '/20251012/speech/1.html'
+    return `${SPEECH_PREFIX}${n}.html`;
+  }
+
+  function goTo(url, opts = {}) {
+    const usePush = CONFIG.USE_PUSHSTATE && opts.push !== false;
+    if (usePush) {
+      try {
+        history.pushState({}, "", url);
+        // optionally fetch and replace content (here we just reload to keep things simple)
+        // best practice: make this an SPA; for now do a full location.assign to ensure page loads.
+        location.assign(url);
+      } catch (e) {
+        location.href = url;
+      }
+    } else {
+      location.href = url;
+    }
+  }
+
+  // ========== Navigation logic ==========
+  function handleNext() {
+    const pathname = location.pathname;
+    const curSpeech = isSpeech(pathname);
+    if (isRoot(pathname)) {
+      // entry -> main
+      goTo(MAIN);
+      return;
+    }
+    if (isMain(pathname)) {
+      goTo(COMMITEE);
+      return;
+    }
+    if (isCommitee(pathname)) {
+      // go to first speech (if exists) else go to first fallback
+      const first = SPEECH_LIST[0];
+      goTo(speechUrl(first));
+      return;
+    }
+    if (curSpeech) {
+      // find index in SPEECH_LIST
+      const idx = SPEECH_LIST.indexOf(curSpeech);
+      if (idx >= 0 && idx < SPEECH_LIST.length - 1) {
+        goTo(speechUrl(SPEECH_LIST[idx + 1]));
+      } else {
+        // at final speech
+        if (CONFIG.ON_FINAL_NEXT === "wrap") {
+          goTo(speechUrl(SPEECH_LIST[0]));
+        } else if (CONFIG.ON_FINAL_NEXT === "toRoot") {
+          goTo(BASE);
+        } else {
+          // noop
+        }
+      }
+      return;
+    }
+    // default fallback: go to main
+    goTo(MAIN);
+  }
+
+  function handlePrev() {
+    const pathname = location.pathname;
+    const curSpeech = isSpeech(pathname);
+    if (isRoot(pathname)) {
+      // nothing to do
+      return;
+    }
+    if (isMain(pathname)) {
+      goTo(BASE);
+      return;
+    }
+    if (isCommitee(pathname)) {
+      goTo(MAIN);
+      return;
+    }
+    if (curSpeech) {
+      const idx = SPEECH_LIST.indexOf(curSpeech);
+      if (idx > 0) {
+        goTo(speechUrl(SPEECH_LIST[idx - 1]));
+      } else {
+        // first speech -> back to commitee-list
+        goTo(COMMITEE);
+      }
+      return;
+    }
+    // default fallback: go to base
+    goTo(BASE);
+  }
+
+  // ========== Key & Touch handling ==========
+  function onKey(e) {
+    // Normalize some keys:
+    // Enter -> Next
+    // ArrowRight / '>' / '.' -> Next
+    // ArrowLeft / '<' / ',' -> Prev
+    const k = e.key;
+    if (k === "Enter") {
+      e.preventDefault();
+      handleNext();
+      return;
+    }
+    if (k === "ArrowRight" || k === "Right") {
+      e.preventDefault();
+      handleNext();
+      return;
+    }
+    if (k === "ArrowLeft" || k === "Left") {
+      e.preventDefault();
+      handlePrev();
+      return;
+    }
+    // characters '>' and '<' (depending on keyboard)
+    if (k === ">" || k === ".") {
+      e.preventDefault();
+      handleNext();
+      return;
+    }
+    if (k === "<" || k === ",") {
+      e.preventDefault();
+      handlePrev();
+      return;
+    }
+
+    // optional: 'h' toggles help overlay
+    if (k === "h" || k === "H") {
+      toggleHelpOverlay();
+    }
+  }
+
+  // Basic touch swipe (horizontal)
+  let touchStartX = null;
+  function onTouchStart(e) {
+    if (e.touches && e.touches.length === 1) {
+      touchStartX = e.touches[0].clientX;
+    }
+  }
+  function onTouchEnd(e) {
+    if (!touchStartX) return;
+    const endX = (e.changedTouches && e.changedTouches[0].clientX) || null;
+    if (endX === null) {
+      touchStartX = null;
+      return;
+    }
+    const dx = endX - touchStartX;
+    const threshold = 50; // pixels
+    if (dx > threshold) {
+      // swipe right -> Prev
+      handlePrev();
+    } else if (dx < -threshold) {
+      // swipe left -> Next
+      handleNext();
+    }
+    touchStartX = null;
+  }
+
+  // ========== UI overlay/help ==========
+  let overlayEl = null;
+  function createHelpOverlay() {
+    if (!CONFIG.SHOW_HELP_OVERLAY) return;
+    overlayEl = document.createElement("div");
+    overlayEl.id = "nav-help-overlay";
+    overlayEl.style.position = "fixed";
+    overlayEl.style.right = "16px";
+    overlayEl.style.bottom = "16px";
+    overlayEl.style.zIndex = 9999;
+    overlayEl.style.padding = "10px 12px";
+    overlayEl.style.borderRadius = "8px";
+    overlayEl.style.boxShadow = "0 6px 20px rgba(0,0,0,0.2)";
+    overlayEl.style.background = "rgba(255,255,255,0.95)";
+    overlayEl.style.fontFamily =
+      'system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue"';
+    overlayEl.style.fontSize = "13px";
+    overlayEl.style.color = "#111";
+    overlayEl.style.border = "1px solid rgba(0,0,0,0.06)";
+    overlayEl.style.maxWidth = "260px";
+    overlayEl.style.lineHeight = "1.3";
+    overlayEl.innerHTML = `
+      <strong>导航提示</strong><br/>
+      Enter / → / '>' : 下一页<br/>
+      ← / '<' : 上一页<br/>
+      H : 显示/隐藏本提示<br/>
+      支持触摸左右滑动（移动端）
+    `;
+    overlayEl.style.cursor = "pointer";
+    overlayEl.title = "点击隐藏/显示";
+    overlayEl.addEventListener("click", toggleHelpOverlay);
+    document.body.appendChild(overlayEl);
+  }
+
+  function toggleHelpOverlay() {
+    if (!overlayEl) {
+      createHelpOverlay();
+      return;
+    }
+    if (overlayEl.style.display === "none") overlayEl.style.display = "";
+    else overlayEl.style.display = "none";
+  }
+
+  // ========== Init ==========
+  function init() {
+    // Attach handlers
+    window.addEventListener("keydown", onKey, { passive: false });
+    window.addEventListener("touchstart", onTouchStart, { passive: true });
+    window.addEventListener("touchend", onTouchEnd, { passive: true });
+
+    // pushState popstate handling: when user clicks back/forward, allow normal navigation (no extra handling needed)
+    window.addEventListener("popstate", () => {
+      // no-op: browser handles location; you could re-run UI update hooks here if needed
+    });
+
+    // create help overlay
+    if (CONFIG.SHOW_HELP_OVERLAY) createHelpOverlay();
+
+    // Add small visual helper arrows (optional)
+    addOnScreenArrows();
+  }
+
+  function addOnScreenArrows() {
+    // minimal left/right arrow buttons for mouse users
+    const left = document.createElement("button");
+    left.textContent = "←";
+    left.setAttribute("aria-label", "上一页");
+    styleTinyArrow(left, "left");
+    left.addEventListener("click", handlePrev);
+
+    const right = document.createElement("button");
+    right.textContent = "→";
+    right.setAttribute("aria-label", "下一页");
+    styleTinyArrow(right, "right");
+    right.addEventListener("click", handleNext);
+
+    document.body.appendChild(left);
+    document.body.appendChild(right);
+  }
+
+  function styleTinyArrow(btn, which) {
+    btn.style.position = "fixed";
+    btn.style.zIndex = 9998;
+    btn.style.top = "50%";
+    btn.style.transform = "translateY(-50%)";
+    btn.style[which === "left" ? "left" : "right"] = "8px";
+    btn.style.width = "40px";
+    btn.style.height = "40px";
+    btn.style.borderRadius = "6px";
+    btn.style.border = "1px solid rgba(0,0,0,0.08)";
+    btn.style.background = "rgba(255,255,255,0.9)";
+    btn.style.boxShadow = "0 6px 20px rgba(0,0,0,0.08)";
+    btn.style.cursor = "pointer";
+    btn.style.fontSize = "18px";
+    btn.style.lineHeight = "36px";
+    btn.style.padding = "0";
+    btn.style.display = "flex";
+    btn.style.alignItems = "center";
+    btn.style.justifyContent = "center";
+  }
+
+  // run
+  init();
+
+  // expose for debugging
+  window._eventNav = {
+    BASE,
+    MAIN,
+    COMMITEE,
+    SPEECH_PREFIX,
+    SPEECH_LIST,
+    handleNext,
+    handlePrev,
+  };
+})();

20251012/speech/1.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>筹委会主席</title>
+    <script src="https://cdn.jsdelivr.net/npm/@tailwindcss/browser@4"></script>
+    <script src="../scripts/nav.js"></script>
+</head>
+<body>
+    <video src="../assets/筹委会主席.mp4" class="w-full" autoplay loop muted></video>
+</body>
+</html>

20251012/speech/2.html

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>林添顺</title>
+    <script src="https://cdn.jsdelivr.net/npm/@tailwindcss/browser@4"></script>
+    <script src="../scripts/nav.js"></script>
+</head>
+<body>
+    <video src="../assets/林添顺.mp4" class="w-full" autoplay loop muted></video>
+</body>
+</html>