chore: import upstream snapshot with attribution

2026-07-13 12:58:35 +08:00
commit 85453da49f
4031 changed files with 710987 additions and 0 deletions
@@ -0,0 +1,533 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=1920, height=1080" />
+    <title>Neon Accent</title>
+    <link rel="preconnect" href="https://fonts.googleapis.com" />
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
+    <link
+      href="https://fonts.googleapis.com/css2?family=Montserrat:wght@800&display=swap"
+      rel="stylesheet"
+    />
+    <script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
+    <style>
+      *,
+      *::before,
+      *::after {
+        box-sizing: border-box;
+      }
+
+      html,
+      body {
+        width: 1920px;
+        height: 1080px;
+        margin: 0;
+        overflow: hidden;
+        background: transparent;
+        font-family: "Montserrat", Arial, sans-serif;
+      }
+
+      #neon-accent {
+        pointer-events: none;
+        position: relative;
+        width: 1920px;
+        height: 1080px;
+        overflow: hidden;
+        background: transparent;
+      }
+
+      #avatar-video {
+        position: absolute;
+        inset: 0;
+        z-index: 1;
+        width: 100%;
+        height: 100%;
+        object-fit: cover;
+      }
+
+      .caption-layer {
+        position: absolute;
+        inset: 0;
+        z-index: 20;
+        pointer-events: none;
+        transform: translateZ(0);
+      }
+
+      .safe-zone {
+        position: absolute;
+        bottom: 100px;
+        left: 50%;
+        transform: translateX(-50%);
+        width: 1400px;
+        height: 260px;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+      }
+
+      .caption-group {
+        position: absolute;
+        left: 0;
+        top: 0;
+        width: 1400px;
+        height: 260px;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        opacity: 0;
+        transform-origin: 50% 50%;
+        will-change: transform;
+        backface-visibility: hidden;
+      }
+
+      .caption-copy {
+        display: flex;
+        flex-direction: column;
+        align-items: center;
+        justify-content: center;
+        max-width: 1400px;
+        text-align: center;
+      }
+
+      .caption-line {
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        gap: 16px;
+        width: max-content;
+        max-width: 1400px;
+        line-height: 1.1;
+        white-space: nowrap;
+      }
+
+      .caption-word {
+        display: inline-block;
+        color: #ffffff;
+        font-family: "Montserrat", Arial, sans-serif;
+        font-weight: 800;
+        font-size: 88px;
+        line-height: 1.1;
+        letter-spacing: 0;
+        text-transform: uppercase;
+      }
+
+      .caption-word.accent {
+        font-size: 106px;
+      }
+    </style>
+  </head>
+  <body>
+    <div
+      id="neon-accent"
+      data-composition-id="caption-neon-accent"
+      data-timeline-locked
+      data-start="0"
+      data-duration="8"
+      data-fps="30"
+      data-width="1920"
+      data-height="1080"
+    >
+      <video
+        id="avatar-video"
+        muted
+        playsinline
+        data-start="0"
+        data-duration="8"
+        data-track-index="0"
+        data-has-audio="false"
+      ></video>
+
+      <div class="caption-layer" aria-hidden="true">
+        <div id="caption-stage" class="safe-zone"></div>
+      </div>
+    </div>
+
+    <script>
+      var DURATION = 8;
+      var SAFE_ZONE_WIDTH = 1400;
+      var BASE_FONT_SIZE = 88;
+      var ACCENT_FONT_SIZE = 106;
+      var MIN_FONT_SIZE = 62;
+      var MAX_WORDS_PER_GROUP = 4;
+      var WORD_SPACING = 16;
+      var PAUSE_THRESHOLD = 0.1;
+      var ENTRY_DURATION = 7 / 30;
+      var WIGGLE_DISTANCE = 14;
+      var WIGGLE_CYCLE = 2 / 1.3;
+      var FONT_WIDTH_SAFETY = 1.14;
+      var PRIMARY_COLOR = "#FFFFFF";
+      var ACCENT_COLORS = ["#53FF01", "#FF0002", "#FCFF00"];
+      var TRANSITION_WORDS = new Set([
+        "the",
+        "a",
+        "an",
+        "and",
+        "or",
+        "but",
+        "is",
+        "are",
+        "was",
+        "were",
+        "to",
+        "of",
+        "in",
+        "on",
+        "at",
+        "for",
+        "with",
+        "by",
+        "from",
+        "as",
+        "it",
+        "its",
+        "this",
+        "that",
+        "these",
+        "those",
+        "be",
+        "been",
+        "have",
+        "has",
+        "had",
+        "do",
+        "does",
+        "did",
+        "will",
+        "would",
+        "could",
+        "should",
+        "may",
+        "might",
+        "must",
+        "can",
+        "if",
+        "then",
+        "so",
+        "just",
+        "not",
+        "no",
+        "yes",
+        "up",
+        "out",
+        "about",
+        "lets",
+        "you",
+        "write",
+        "render",
+      ]);
+      var KEYWORDS = new Set(["hyperframes", "html", "professional", "code", "cinema"]);
+
+      var TRANSCRIPT = [
+        { text: "Every", start: 0.0, end: 0.3 },
+        { text: "great", start: 0.3, end: 0.55 },
+        { text: "video", start: 0.55, end: 0.85 },
+        { text: "starts", start: 0.85, end: 1.1 },
+        { text: "with", start: 1.1, end: 1.25 },
+        { text: "a", start: 1.25, end: 1.35 },
+        { text: "single", start: 1.35, end: 1.65 },
+        { text: "frame.", start: 1.65, end: 2.0 },
+        { text: "HyperFrames", start: 2.1, end: 2.65 },
+        { text: "lets", start: 2.65, end: 2.85 },
+        { text: "you", start: 2.85, end: 2.95 },
+        { text: "write", start: 2.95, end: 3.15 },
+        { text: "HTML", start: 3.15, end: 3.55 },
+        { text: "and", start: 3.55, end: 3.65 },
+        { text: "render", start: 3.65, end: 3.95 },
+        { text: "professional", start: 3.95, end: 4.45 },
+        { text: "video.", start: 4.45, end: 4.8 },
+        { text: "No", start: 4.9, end: 5.05 },
+        { text: "timeline.", start: 5.05, end: 5.45 },
+        { text: "No", start: 5.5, end: 5.65 },
+        { text: "drag", start: 5.65, end: 5.85 },
+        { text: "and", start: 5.85, end: 5.95 },
+        { text: "drop.", start: 5.95, end: 6.25 },
+        { text: "Just", start: 6.35, end: 6.55 },
+        { text: "code", start: 6.55, end: 6.8 },
+        { text: "that", start: 6.8, end: 6.95 },
+        { text: "becomes", start: 6.95, end: 7.3 },
+        { text: "cinema.", start: 7.3, end: 7.7 },
+      ];
+
+      var _fitCanvas = document.createElement("canvas");
+      var _fitCtx = _fitCanvas.getContext("2d");
+      function fitFontSize(text, baseFontSize, fontWeight, fontFamily, maxWidth) {
+        var size = baseFontSize;
+        var minSize = Math.floor(baseFontSize * 0.45);
+        while (size > minSize) {
+          _fitCtx.font = fontWeight + " " + size + "px " + fontFamily;
+          if (_fitCtx.measureText(text).width <= maxWidth) return size;
+          size -= 2;
+        }
+        return minSize;
+      }
+
+      gsap.registerPlugin && gsap.registerPlugin();
+
+      function cleanText(text) {
+        return String(text || "").trim();
+      }
+
+      function normalizeWords(rawWords) {
+        return rawWords
+          .map(function (item) {
+            return {
+              text: cleanText(item.word || item.text),
+              start: Math.max(0, Number(item.start) || 0),
+              end: Math.min(DURATION, Math.max(Number(item.start) || 0, Number(item.end) || 0)),
+            };
+          })
+          .filter(function (word) {
+            return word.text.length > 0;
+          });
+      }
+
+      var measureCanvas = document.createElement("canvas");
+      var measureContext = measureCanvas.getContext("2d");
+
+      function seededRandom(seed) {
+        var x = Math.sin(seed * 9999) * 10000;
+        return x - Math.floor(x);
+      }
+
+      function isKeyword(text) {
+        return KEYWORDS.has(text.toLowerCase().replace(/[^a-z]/g, ""));
+      }
+
+      function assignWordColors(words, groupIndex) {
+        return words.map(function (word) {
+          if (isKeyword(word.text)) {
+            var colorIndex = Math.floor(seededRandom(groupIndex * 23 + 7) * ACCENT_COLORS.length);
+            return ACCENT_COLORS[colorIndex];
+          }
+          var clean = word.text.toLowerCase().replace(/[^a-z']/g, "");
+          if (TRANSITION_WORDS.has(clean)) return PRIMARY_COLOR;
+          var rand = seededRandom(groupIndex * 7 + words.indexOf(word));
+          if (rand > 0.6) {
+            var ci = Math.floor(rand * ACCENT_COLORS.length) % ACCENT_COLORS.length;
+            return ACCENT_COLORS[ci];
+          }
+          return PRIMARY_COLOR;
+        });
+      }
+
+      function measureWord(word, color, fontSize) {
+        var size = color === PRIMARY_COLOR ? fontSize : fontSize * 1.2;
+        measureContext.font = "800 " + size + "px Montserrat";
+        return measureContext.measureText(word.text.toUpperCase()).width * FONT_WIDTH_SAFETY;
+      }
+
+      function measureLineWidth(words, colors, fontSize) {
+        return words.reduce(function (total, word, index) {
+          return (
+            total +
+            measureWord(word, colors[index] || PRIMARY_COLOR, fontSize) +
+            (index ? WORD_SPACING : 0)
+          );
+        }, 0);
+      }
+
+      function splitLinesForGroup(words, colors, fontSize) {
+        var maxLineWidth = SAFE_ZONE_WIDTH;
+        if (
+          words.some(function (word, i) {
+            return measureWord(word, colors[i] || PRIMARY_COLOR, fontSize) > maxLineWidth;
+          })
+        )
+          return null;
+        if (measureLineWidth(words, colors, fontSize) <= maxLineWidth)
+          return [{ words: words, colors: colors }];
+        var best = null;
+        var bestDiff = Infinity;
+        for (var split = 1; split < words.length; split++) {
+          var fw = words.slice(0, split),
+            sw = words.slice(split);
+          var fc = colors.slice(0, split),
+            sc = colors.slice(split);
+          var fW = measureLineWidth(fw, fc, fontSize);
+          var sW = measureLineWidth(sw, sc, fontSize);
+          if (fW <= maxLineWidth && sW <= maxLineWidth) {
+            var diff = Math.abs(fW - sW);
+            if (diff < bestDiff) {
+              best = [
+                { words: fw, colors: fc },
+                { words: sw, colors: sc },
+              ];
+              bestDiff = diff;
+            }
+          }
+        }
+        return best;
+      }
+
+      function makeGroups(words) {
+        var groups = [];
+        var current = [];
+        words.forEach(function (word, index) {
+          var nextWord = words[index + 1];
+          var testGroup = current.concat([word]);
+          var exceedsWords = testGroup.length > MAX_WORDS_PER_GROUP;
+          var colors = assignWordColors(testGroup, groups.length);
+          var exceedsFit = !splitLinesForGroup(testGroup, colors, BASE_FONT_SIZE);
+          if (exceedsWords || exceedsFit) {
+            if (current.length) groups.push(makeGroup(current, groups.length));
+            current = [word];
+            return;
+          }
+          current.push(word);
+          var punctuation = /[,.:!?]$/.test(word.text);
+          var pause = nextWord ? nextWord.start - word.end : 0;
+          if (
+            !nextWord ||
+            punctuation ||
+            pause >= PAUSE_THRESHOLD ||
+            current.length >= MAX_WORDS_PER_GROUP
+          ) {
+            groups.push(makeGroup(current, groups.length));
+            current = [];
+          }
+        });
+        if (current.length) groups.push(makeGroup(current, groups.length));
+        return groups;
+      }
+
+      function makeGroup(words, groupIndex) {
+        var colors = assignWordColors(words, groupIndex);
+        var groupText = words
+          .map(function (w) {
+            return w.text.toUpperCase();
+          })
+          .join(" ");
+        var fontSize = fitFontSize(groupText, BASE_FONT_SIZE, "800", "Montserrat", SAFE_ZONE_WIDTH);
+        while (fontSize > MIN_FONT_SIZE && !splitLinesForGroup(words, colors, fontSize)) {
+          fontSize -= 2;
+        }
+        return {
+          words: words.slice(),
+          colors: colors,
+          fontSize: fontSize,
+          lines: splitLinesForGroup(words, colors, fontSize) || [{ words: words, colors: colors }],
+          start: words[0].start,
+          end: words[words.length - 1].end,
+        };
+      }
+
+      function shadowForColor(color) {
+        var hex = color.replace("#", "");
+        var r = parseInt(hex.slice(0, 2), 16);
+        var g = parseInt(hex.slice(2, 4), 16);
+        var b = parseInt(hex.slice(4, 6), 16);
+        var glow =
+          "0 0 4px rgba(" +
+          r +
+          "," +
+          g +
+          "," +
+          b +
+          ",1), 0 0 10px rgba(" +
+          r +
+          "," +
+          g +
+          "," +
+          b +
+          ",0.9), 0 0 20px rgba(" +
+          r +
+          "," +
+          g +
+          "," +
+          b +
+          ",0.7), 0 0 40px rgba(" +
+          r +
+          "," +
+          g +
+          "," +
+          b +
+          ",0.4)";
+        return "0 8px 16px rgba(0,0,0,0.8), 0 16px 40px rgba(0,0,0,0.6), " + glow;
+      }
+
+      function buildCaptions(groups) {
+        var stage = document.getElementById("caption-stage");
+        groups.forEach(function (group, groupIndex) {
+          var groupEl = document.createElement("div");
+          var copyEl = document.createElement("div");
+          groupEl.id = "caption-group-" + groupIndex;
+          groupEl.className = "caption-group";
+          copyEl.className = "caption-copy";
+          group.lines.slice(0, 2).forEach(function (line) {
+            var lineEl = document.createElement("div");
+            lineEl.className = "caption-line";
+            line.words.forEach(function (word, wordIndex) {
+              var color = line.colors[wordIndex] || PRIMARY_COLOR;
+              var wordEl = document.createElement("span");
+              wordEl.className = color === PRIMARY_COLOR ? "caption-word" : "caption-word accent";
+              wordEl.textContent = word.text.toUpperCase();
+              wordEl.style.color = color;
+              wordEl.style.fontSize =
+                color === PRIMARY_COLOR ? group.fontSize + "px" : group.fontSize * 1.2 + "px";
+              wordEl.style.textShadow = shadowForColor(color);
+              lineEl.appendChild(wordEl);
+            });
+            copyEl.appendChild(lineEl);
+          });
+          groupEl.appendChild(copyEl);
+          stage.appendChild(groupEl);
+        });
+      }
+
+      var WORDS = normalizeWords(TRANSCRIPT);
+      var GROUPS = makeGroups(WORDS);
+      buildCaptions(GROUPS);
+
+      window.__timelines = window.__timelines || {};
+      var tl = gsap.timeline({ paused: true });
+
+      var visibleStarts = GROUPS.map(function (group, groupIndex) {
+        var prev = GROUPS[groupIndex - 1];
+        var availableGap = prev ? Math.max(0, group.start - prev.end) : ENTRY_DURATION;
+        var entryLead = Math.min(ENTRY_DURATION, availableGap);
+        return Math.max(0, group.start - entryLead);
+      });
+
+      var allGroupEls = GROUPS.map(function (_, i) {
+        return document.getElementById("caption-group-" + i);
+      });
+
+      GROUPS.forEach(function (group, groupIndex) {
+        var groupEl = allGroupEls[groupIndex];
+        var visibleStart = visibleStarts[groupIndex];
+        var visibleEnd = groupIndex < GROUPS.length - 1 ? visibleStarts[groupIndex + 1] : DURATION;
+        var direction = groupIndex % 2 === 0 ? -1 : 1;
+        var D = WIGGLE_DISTANCE * direction;
+        var wiggleCycles = Math.max(1, Math.ceil((visibleEnd - visibleStart) / WIGGLE_CYCLE));
+
+        allGroupEls.forEach(function (otherEl, otherIndex) {
+          if (otherIndex !== groupIndex) tl.set(otherEl, { opacity: 0 }, visibleStart);
+        });
+
+        tl.set(groupEl, { opacity: 0, scale: 0.65, x: 0, y: 0 }, visibleStart);
+        tl.to(
+          groupEl,
+          { opacity: 1, scale: 1, duration: ENTRY_DURATION, ease: "power3.out", force3D: true },
+          visibleStart,
+        );
+        tl.to(
+          groupEl,
+          {
+            x: D,
+            y: D,
+            duration: WIGGLE_CYCLE / 2,
+            ease: "sine.inOut",
+            yoyo: true,
+            repeat: Math.max(0, wiggleCycles * 2 - 1),
+            force3D: true,
+          },
+          visibleStart,
+        );
+        tl.set(groupEl, { opacity: 0 }, visibleEnd);
+      });
+
+      window.__timelines["caption-neon-accent"] = tl;
+    </script>
+  </body>
+</html>
@@ -0,0 +1,531 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=1920, height=1080" />
+    <title>Neon Accent</title>
+    <link rel="preconnect" href="https://fonts.googleapis.com" />
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
+    <link
+      href="https://fonts.googleapis.com/css2?family=Montserrat:wght@800&display=swap"
+      rel="stylesheet"
+    />
+    <script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
+    <style>
+      *,
+      *::before,
+      *::after {
+        box-sizing: border-box;
+      }
+
+      html,
+      body {
+        width: 1920px;
+        height: 1080px;
+        margin: 0;
+        overflow: hidden;
+        background: #000000;
+        font-family: "Montserrat", Arial, sans-serif;
+      }
+
+      #neon-accent {
+        position: relative;
+        width: 1920px;
+        height: 1080px;
+        overflow: hidden;
+        background: #000000;
+      }
+
+      #avatar-video {
+        position: absolute;
+        inset: 0;
+        z-index: 1;
+        width: 100%;
+        height: 100%;
+        object-fit: cover;
+      }
+
+      .caption-layer {
+        position: absolute;
+        inset: 0;
+        z-index: 20;
+        pointer-events: none;
+        transform: translateZ(0);
+      }
+
+      .safe-zone {
+        position: absolute;
+        bottom: 100px;
+        left: 50%;
+        transform: translateX(-50%);
+        width: 1400px;
+        height: 260px;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+      }
+
+      .caption-group {
+        position: absolute;
+        left: 0;
+        top: 0;
+        width: 1400px;
+        height: 260px;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        opacity: 0;
+        transform-origin: 50% 50%;
+        will-change: transform;
+        backface-visibility: hidden;
+      }
+
+      .caption-copy {
+        display: flex;
+        flex-direction: column;
+        align-items: center;
+        justify-content: center;
+        max-width: 1400px;
+        text-align: center;
+      }
+
+      .caption-line {
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        gap: 16px;
+        width: max-content;
+        max-width: 1400px;
+        line-height: 1.1;
+        white-space: nowrap;
+      }
+
+      .caption-word {
+        display: inline-block;
+        color: #ffffff;
+        font-family: "Montserrat", Arial, sans-serif;
+        font-weight: 800;
+        font-size: 88px;
+        line-height: 1.1;
+        letter-spacing: 0;
+        text-transform: uppercase;
+      }
+
+      .caption-word.accent {
+        font-size: 106px;
+      }
+    </style>
+  </head>
+  <body>
+    <div
+      id="neon-accent"
+      data-composition-id="caption-neon-accent"
+      data-start="0"
+      data-duration="8"
+      data-fps="30"
+      data-width="1920"
+      data-height="1080"
+    >
+      <video
+        id="avatar-video"
+        muted
+        playsinline
+        data-start="0"
+        data-duration="8"
+        data-track-index="0"
+        data-has-audio="false"
+      ></video>
+
+      <div class="caption-layer" aria-hidden="true">
+        <div id="caption-stage" class="safe-zone"></div>
+      </div>
+    </div>
+
+    <script>
+      var DURATION = 8;
+      var SAFE_ZONE_WIDTH = 1400;
+      var BASE_FONT_SIZE = 88;
+      var ACCENT_FONT_SIZE = 106;
+      var MIN_FONT_SIZE = 62;
+      var MAX_WORDS_PER_GROUP = 4;
+      var WORD_SPACING = 16;
+      var PAUSE_THRESHOLD = 0.1;
+      var ENTRY_DURATION = 7 / 30;
+      var WIGGLE_DISTANCE = 14;
+      var WIGGLE_CYCLE = 2 / 1.3;
+      var FONT_WIDTH_SAFETY = 1.14;
+      var PRIMARY_COLOR = "#FFFFFF";
+      var ACCENT_COLORS = ["#53FF01", "#FF0002", "#FCFF00"];
+      var TRANSITION_WORDS = new Set([
+        "the",
+        "a",
+        "an",
+        "and",
+        "or",
+        "but",
+        "is",
+        "are",
+        "was",
+        "were",
+        "to",
+        "of",
+        "in",
+        "on",
+        "at",
+        "for",
+        "with",
+        "by",
+        "from",
+        "as",
+        "it",
+        "its",
+        "this",
+        "that",
+        "these",
+        "those",
+        "be",
+        "been",
+        "have",
+        "has",
+        "had",
+        "do",
+        "does",
+        "did",
+        "will",
+        "would",
+        "could",
+        "should",
+        "may",
+        "might",
+        "must",
+        "can",
+        "if",
+        "then",
+        "so",
+        "just",
+        "not",
+        "no",
+        "yes",
+        "up",
+        "out",
+        "about",
+        "lets",
+        "you",
+        "write",
+        "render",
+      ]);
+      var KEYWORDS = new Set(["hyperframes", "html", "professional", "code", "cinema"]);
+
+      var TRANSCRIPT = [
+        { text: "Every", start: 0.0, end: 0.3 },
+        { text: "great", start: 0.3, end: 0.55 },
+        { text: "video", start: 0.55, end: 0.85 },
+        { text: "starts", start: 0.85, end: 1.1 },
+        { text: "with", start: 1.1, end: 1.25 },
+        { text: "a", start: 1.25, end: 1.35 },
+        { text: "single", start: 1.35, end: 1.65 },
+        { text: "frame.", start: 1.65, end: 2.0 },
+        { text: "HyperFrames", start: 2.1, end: 2.65 },
+        { text: "lets", start: 2.65, end: 2.85 },
+        { text: "you", start: 2.85, end: 2.95 },
+        { text: "write", start: 2.95, end: 3.15 },
+        { text: "HTML", start: 3.15, end: 3.55 },
+        { text: "and", start: 3.55, end: 3.65 },
+        { text: "render", start: 3.65, end: 3.95 },
+        { text: "professional", start: 3.95, end: 4.45 },
+        { text: "video.", start: 4.45, end: 4.8 },
+        { text: "No", start: 4.9, end: 5.05 },
+        { text: "timeline.", start: 5.05, end: 5.45 },
+        { text: "No", start: 5.5, end: 5.65 },
+        { text: "drag", start: 5.65, end: 5.85 },
+        { text: "and", start: 5.85, end: 5.95 },
+        { text: "drop.", start: 5.95, end: 6.25 },
+        { text: "Just", start: 6.35, end: 6.55 },
+        { text: "code", start: 6.55, end: 6.8 },
+        { text: "that", start: 6.8, end: 6.95 },
+        { text: "becomes", start: 6.95, end: 7.3 },
+        { text: "cinema.", start: 7.3, end: 7.7 },
+      ];
+
+      var _fitCanvas = document.createElement("canvas");
+      var _fitCtx = _fitCanvas.getContext("2d");
+      function fitFontSize(text, baseFontSize, fontWeight, fontFamily, maxWidth) {
+        var size = baseFontSize;
+        var minSize = Math.floor(baseFontSize * 0.45);
+        while (size > minSize) {
+          _fitCtx.font = fontWeight + " " + size + "px " + fontFamily;
+          if (_fitCtx.measureText(text).width <= maxWidth) return size;
+          size -= 2;
+        }
+        return minSize;
+      }
+
+      gsap.registerPlugin && gsap.registerPlugin();
+
+      function cleanText(text) {
+        return String(text || "").trim();
+      }
+
+      function normalizeWords(rawWords) {
+        return rawWords
+          .map(function (item) {
+            return {
+              text: cleanText(item.word || item.text),
+              start: Math.max(0, Number(item.start) || 0),
+              end: Math.min(DURATION, Math.max(Number(item.start) || 0, Number(item.end) || 0)),
+            };
+          })
+          .filter(function (word) {
+            return word.text.length > 0;
+          });
+      }
+
+      var measureCanvas = document.createElement("canvas");
+      var measureContext = measureCanvas.getContext("2d");
+
+      function seededRandom(seed) {
+        var x = Math.sin(seed * 9999) * 10000;
+        return x - Math.floor(x);
+      }
+
+      function isKeyword(text) {
+        return KEYWORDS.has(text.toLowerCase().replace(/[^a-z]/g, ""));
+      }
+
+      function assignWordColors(words, groupIndex) {
+        return words.map(function (word) {
+          if (isKeyword(word.text)) {
+            var colorIndex = Math.floor(seededRandom(groupIndex * 23 + 7) * ACCENT_COLORS.length);
+            return ACCENT_COLORS[colorIndex];
+          }
+          var clean = word.text.toLowerCase().replace(/[^a-z']/g, "");
+          if (TRANSITION_WORDS.has(clean)) return PRIMARY_COLOR;
+          var rand = seededRandom(groupIndex * 7 + words.indexOf(word));
+          if (rand > 0.6) {
+            var ci = Math.floor(rand * ACCENT_COLORS.length) % ACCENT_COLORS.length;
+            return ACCENT_COLORS[ci];
+          }
+          return PRIMARY_COLOR;
+        });
+      }
+
+      function measureWord(word, color, fontSize) {
+        var size = color === PRIMARY_COLOR ? fontSize : fontSize * 1.2;
+        measureContext.font = "800 " + size + "px Montserrat";
+        return measureContext.measureText(word.text.toUpperCase()).width * FONT_WIDTH_SAFETY;
+      }
+
+      function measureLineWidth(words, colors, fontSize) {
+        return words.reduce(function (total, word, index) {
+          return (
+            total +
+            measureWord(word, colors[index] || PRIMARY_COLOR, fontSize) +
+            (index ? WORD_SPACING : 0)
+          );
+        }, 0);
+      }
+
+      function splitLinesForGroup(words, colors, fontSize) {
+        var maxLineWidth = SAFE_ZONE_WIDTH;
+        if (
+          words.some(function (word, i) {
+            return measureWord(word, colors[i] || PRIMARY_COLOR, fontSize) > maxLineWidth;
+          })
+        )
+          return null;
+        if (measureLineWidth(words, colors, fontSize) <= maxLineWidth)
+          return [{ words: words, colors: colors }];
+        var best = null;
+        var bestDiff = Infinity;
+        for (var split = 1; split < words.length; split++) {
+          var fw = words.slice(0, split),
+            sw = words.slice(split);
+          var fc = colors.slice(0, split),
+            sc = colors.slice(split);
+          var fW = measureLineWidth(fw, fc, fontSize);
+          var sW = measureLineWidth(sw, sc, fontSize);
+          if (fW <= maxLineWidth && sW <= maxLineWidth) {
+            var diff = Math.abs(fW - sW);
+            if (diff < bestDiff) {
+              best = [
+                { words: fw, colors: fc },
+                { words: sw, colors: sc },
+              ];
+              bestDiff = diff;
+            }
+          }
+        }
+        return best;
+      }
+
+      function makeGroups(words) {
+        var groups = [];
+        var current = [];
+        words.forEach(function (word, index) {
+          var nextWord = words[index + 1];
+          var testGroup = current.concat([word]);
+          var exceedsWords = testGroup.length > MAX_WORDS_PER_GROUP;
+          var colors = assignWordColors(testGroup, groups.length);
+          var exceedsFit = !splitLinesForGroup(testGroup, colors, BASE_FONT_SIZE);
+          if (exceedsWords || exceedsFit) {
+            if (current.length) groups.push(makeGroup(current, groups.length));
+            current = [word];
+            return;
+          }
+          current.push(word);
+          var punctuation = /[,.:!?]$/.test(word.text);
+          var pause = nextWord ? nextWord.start - word.end : 0;
+          if (
+            !nextWord ||
+            punctuation ||
+            pause >= PAUSE_THRESHOLD ||
+            current.length >= MAX_WORDS_PER_GROUP
+          ) {
+            groups.push(makeGroup(current, groups.length));
+            current = [];
+          }
+        });
+        if (current.length) groups.push(makeGroup(current, groups.length));
+        return groups;
+      }
+
+      function makeGroup(words, groupIndex) {
+        var colors = assignWordColors(words, groupIndex);
+        var groupText = words
+          .map(function (w) {
+            return w.text.toUpperCase();
+          })
+          .join(" ");
+        var fontSize = fitFontSize(groupText, BASE_FONT_SIZE, "800", "Montserrat", SAFE_ZONE_WIDTH);
+        while (fontSize > MIN_FONT_SIZE && !splitLinesForGroup(words, colors, fontSize)) {
+          fontSize -= 2;
+        }
+        return {
+          words: words.slice(),
+          colors: colors,
+          fontSize: fontSize,
+          lines: splitLinesForGroup(words, colors, fontSize) || [{ words: words, colors: colors }],
+          start: words[0].start,
+          end: words[words.length - 1].end,
+        };
+      }
+
+      function shadowForColor(color) {
+        var hex = color.replace("#", "");
+        var r = parseInt(hex.slice(0, 2), 16);
+        var g = parseInt(hex.slice(2, 4), 16);
+        var b = parseInt(hex.slice(4, 6), 16);
+        var glow =
+          "0 0 4px rgba(" +
+          r +
+          "," +
+          g +
+          "," +
+          b +
+          ",1), 0 0 10px rgba(" +
+          r +
+          "," +
+          g +
+          "," +
+          b +
+          ",0.9), 0 0 20px rgba(" +
+          r +
+          "," +
+          g +
+          "," +
+          b +
+          ",0.7), 0 0 40px rgba(" +
+          r +
+          "," +
+          g +
+          "," +
+          b +
+          ",0.4)";
+        return "0 8px 16px rgba(0,0,0,0.8), 0 16px 40px rgba(0,0,0,0.6), " + glow;
+      }
+
+      function buildCaptions(groups) {
+        var stage = document.getElementById("caption-stage");
+        groups.forEach(function (group, groupIndex) {
+          var groupEl = document.createElement("div");
+          var copyEl = document.createElement("div");
+          groupEl.id = "caption-group-" + groupIndex;
+          groupEl.className = "caption-group";
+          copyEl.className = "caption-copy";
+          group.lines.slice(0, 2).forEach(function (line) {
+            var lineEl = document.createElement("div");
+            lineEl.className = "caption-line";
+            line.words.forEach(function (word, wordIndex) {
+              var color = line.colors[wordIndex] || PRIMARY_COLOR;
+              var wordEl = document.createElement("span");
+              wordEl.className = color === PRIMARY_COLOR ? "caption-word" : "caption-word accent";
+              wordEl.textContent = word.text.toUpperCase();
+              wordEl.style.color = color;
+              wordEl.style.fontSize =
+                color === PRIMARY_COLOR ? group.fontSize + "px" : group.fontSize * 1.2 + "px";
+              wordEl.style.textShadow = shadowForColor(color);
+              lineEl.appendChild(wordEl);
+            });
+            copyEl.appendChild(lineEl);
+          });
+          groupEl.appendChild(copyEl);
+          stage.appendChild(groupEl);
+        });
+      }
+
+      var WORDS = normalizeWords(TRANSCRIPT);
+      var GROUPS = makeGroups(WORDS);
+      buildCaptions(GROUPS);
+
+      window.__timelines = window.__timelines || {};
+      var tl = gsap.timeline({ paused: true });
+
+      var visibleStarts = GROUPS.map(function (group, groupIndex) {
+        var prev = GROUPS[groupIndex - 1];
+        var availableGap = prev ? Math.max(0, group.start - prev.end) : ENTRY_DURATION;
+        var entryLead = Math.min(ENTRY_DURATION, availableGap);
+        return Math.max(0, group.start - entryLead);
+      });
+
+      var allGroupEls = GROUPS.map(function (_, i) {
+        return document.getElementById("caption-group-" + i);
+      });
+
+      GROUPS.forEach(function (group, groupIndex) {
+        var groupEl = allGroupEls[groupIndex];
+        var visibleStart = visibleStarts[groupIndex];
+        var visibleEnd = groupIndex < GROUPS.length - 1 ? visibleStarts[groupIndex + 1] : DURATION;
+        var direction = groupIndex % 2 === 0 ? -1 : 1;
+        var D = WIGGLE_DISTANCE * direction;
+        var wiggleCycles = Math.max(1, Math.ceil((visibleEnd - visibleStart) / WIGGLE_CYCLE));
+
+        allGroupEls.forEach(function (otherEl, otherIndex) {
+          if (otherIndex !== groupIndex) tl.set(otherEl, { opacity: 0 }, visibleStart);
+        });
+
+        tl.set(groupEl, { opacity: 0, scale: 0.65, x: 0, y: 0 }, visibleStart);
+        tl.to(
+          groupEl,
+          { opacity: 1, scale: 1, duration: ENTRY_DURATION, ease: "power3.out", force3D: true },
+          visibleStart,
+        );
+        tl.to(
+          groupEl,
+          {
+            x: D,
+            y: D,
+            duration: WIGGLE_CYCLE / 2,
+            ease: "sine.inOut",
+            yoyo: true,
+            repeat: Math.max(0, wiggleCycles * 2 - 1),
+            force3D: true,
+          },
+          visibleStart,
+        );
+        tl.set(groupEl, { opacity: 0 }, visibleEnd);
+      });
+
+      window.__timelines["caption-neon-accent"] = tl;
+    </script>
+  </body>
+</html>
@@ -0,0 +1,19 @@
+{
+  "$schema": "https://hyperframes.heygen.com/schema/registry-item.json",
+  "name": "caption-neon-accent",
+  "type": "hyperframes:component",
+  "title": "Neon Accent",
+  "description": "Multi-color neon glow accents with wiggle drift animation",
+  "tags": ["captions", "caption-style", "neon", "glow", "accent"],
+  "files": [
+    {
+      "path": "caption-neon-accent.html",
+      "target": "compositions/components/caption-neon-accent.html",
+      "type": "hyperframes:snippet"
+    }
+  ],
+  "preview": {
+    "video": "https://static.heygen.ai/hyperframes-oss/registry/components/caption-neon-accent/preview.mp4?v=1779051416",
+    "poster": "https://static.heygen.ai/hyperframes-oss/docs/images/catalog/components/caption-neon-accent.png"
+  }
+}