(function exposeHeavenLoading(global) {
  "use strict";

  const PAPER = "#fdfcf8";
  const PAPER_CENTER = "#f4eee2";
  const INK = "#76513d";
  const INK_BRIGHT = "#914f3d";
  const GOLD = "#a97d43";
  const GOLD_BRIGHT = "#c69a58";
  const CINNABAR = "#b64e43";
  const DIM = "rgba(75, 72, 63, 0.58)";
  const SERIF = '"Noto Serif SC","Songti SC","STSong","SimSun",serif';
  const ELEMENT_COLORS = {
    木: "#648b5b",
    火: "#b85043",
    土: "#a88038",
    金: "#8b8171",
    水: "#587a9f",
  };
  const QI6 = [
    { name: "厥阴风木", element: "木" },
    { name: "少阴君火", element: "火" },
    { name: "少阳相火", element: "火" },
    { name: "太阴湿土", element: "土" },
    { name: "阳明燥金", element: "金" },
    { name: "太阳寒水", element: "水" },
  ];
  const TRIGRAMS = [
    { name: "乾", bits: [1, 1, 1], angle: -90 },
    { name: "兑", bits: [1, 1, 0], angle: -135 },
    { name: "离", bits: [1, 0, 1], angle: 180 },
    { name: "震", bits: [1, 0, 0], angle: 135 },
    { name: "巽", bits: [0, 1, 1], angle: -45 },
    { name: "坎", bits: [0, 1, 0], angle: 0 },
    { name: "艮", bits: [0, 0, 1], angle: 45 },
    { name: "坤", bits: [0, 0, 0], angle: 90 },
  ];
  const SIXIANG = [
    { name: "太阳", bits: [1, 1], dx: 0, dy: -1 },
    { name: "少阴", bits: [1, 0], dx: 1, dy: 0 },
    { name: "太阴", bits: [0, 0], dx: 0, dy: 1 },
    { name: "少阳", bits: [0, 1], dx: -1, dy: 0 },
  ];
  const HEXAGRAM_NAMES = [
    "坤", "剥", "比", "观", "豫", "晋", "萃", "否", "谦", "艮", "蹇", "渐", "小过", "旅", "咸", "遁",
    "师", "蒙", "坎", "涣", "解", "未济", "困", "讼", "升", "蛊", "井", "巽", "恒", "鼎", "大过", "姤",
    "复", "颐", "屯", "益", "震", "噬嗑", "随", "无妄", "明夷", "贲", "既济", "家人", "丰", "革", "同人", "临",
    "损", "节", "中孚", "归妹", "睽", "兑", "履", "泰", "大畜", "需", "小畜", "大壮", "大有", "夬", "乾",
  ];
  const HEX_STAGES = [
    [0, 1800, "太 极", "无极而太极，动而生阳"],
    [1800, 3300, "两 仪", "一阴一阳之谓道"],
    [3300, 4700, "四 象", "阴阳消长，太少相生"],
    [4700, 6800, "八 卦", "天地定位，山泽通气"],
    [6800, 10800, "六 十 四 卦", "卦者挂也，悬物象以示人"],
  ];
  const FORTUNE_STAGES = [
    [0, 2100, "五 运", "木火土金水，五运相袭，周而复始"],
    [2100, 3900, "十 干 化 运", "甲己土 · 乙庚金 · 丙辛水 · 丁壬木 · 戊癸火"],
    [3900, 5800, "十 二 支 化 气", "子午少阴 · 丑未太阴 · 寅申少阳 · 卯酉阳明"],
    [5800, 7900, "六 气 环 布", "风寒暑湿燥火，分主六步，以应岁时"],
    [7900, 11000, "岁 运 合 参", "五运承岁，六气应时"],
  ];

  const clamp01 = (value) => Math.max(0, Math.min(1, value));
  const smooth = (start, end, value) => {
    const progress = clamp01((value - start) / Math.max(1, end - start));
    return progress * progress * (3 - 2 * progress);
  };
  const easeOut = (value) => 1 - Math.pow(1 - clamp01(value), 3);
  const hexBits = (index) => Array.from({ length: 6 }, (_, bit) => (index >> (5 - bit)) & 1);
  const point = (cx, cy, radius, degrees) => {
    const radians = degrees * Math.PI / 180;
    return [cx + Math.cos(radians) * radius, cy + Math.sin(radians) * radius];
  };

  class HeavenLoadingCanvas {
    constructor(canvas) {
      this.canvas = canvas;
      this.context = canvas.getContext("2d");
      this.width = 0;
      this.height = 0;
      this.dpr = 1;
      this.scene = "hexagram";
      this.data = {};
      this.startedAt = 0;
      this.frameId = 0;
      this.running = false;
      this.completingAt = 0;
      this.completionResolve = null;
      this.completionTimer = 0;
      this.resizeObserver = new ResizeObserver(() => this.resize());
      this.reducedMotion = global.matchMedia("(prefers-reduced-motion: reduce)").matches;
      this.stars = this.createStars(this.reducedMotion ? 48 : 110);
    }

    createStars(count) {
      let seed = 24681357;
      const random = () => {
        seed = (seed * 1664525 + 1013904223) >>> 0;
        return seed / 4294967296;
      };
      return Array.from({ length: count }, () => ({
        x: random(),
        y: random(),
        radius: 0.25 + random() * 1.05,
        phase: random() * Math.PI * 2,
        speed: 0.00002 + random() * 0.00005,
      }));
    }

    start(scene, data = {}) {
      const nextScene = scene === "fortune" ? "fortune" : "hexagram";
      if (this.running && this.scene === nextScene) {
        this.data = data;
        return;
      }
      this.stop();
      this.scene = nextScene;
      this.data = data;
      this.startedAt = performance.now();
      this.running = true;
      this.canvas.dataset.scene = this.scene;
      this.canvas.dataset.running = "true";
      this.resizeObserver.observe(this.canvas);
      this.resize();
      if (this.reducedMotion) {
        this.draw(this.scene === "fortune" ? 11000 : 10800, performance.now());
      } else {
        this.frameId = requestAnimationFrame((now) => this.frame(now));
      }
    }

    complete() {
      if (!this.running || this.reducedMotion) {
        this.stop();
        return Promise.resolve();
      }
      if (this.completionResolve) return this.completionPromise;
      this.completingAt = performance.now();
      this.completionPromise = new Promise((resolve) => { this.completionResolve = resolve; });
      this.completionTimer = global.setTimeout(() => this.stop(), 900);
      return this.completionPromise;
    }

    stop() {
      if (this.frameId) cancelAnimationFrame(this.frameId);
      this.frameId = 0;
      this.running = false;
      this.completingAt = 0;
      if (this.completionTimer) global.clearTimeout(this.completionTimer);
      this.completionTimer = 0;
      this.resizeObserver.disconnect();
      this.canvas.dataset.running = "false";
      if (this.completionResolve) this.completionResolve();
      this.completionResolve = null;
      this.completionPromise = null;
    }

    resize() {
      const rect = this.canvas.getBoundingClientRect();
      const width = Math.max(1, Math.round(rect.width));
      const height = Math.max(1, Math.round(rect.height));
      if (width === this.width && height === this.height) return;
      this.width = width;
      this.height = height;
      this.dpr = Math.min(global.devicePixelRatio || 1, 2);
      this.canvas.width = Math.round(width * this.dpr);
      this.canvas.height = Math.round(height * this.dpr);
      this.context.setTransform(this.dpr, 0, 0, this.dpr, 0, 0);
      if (this.running && this.reducedMotion) {
        this.draw(this.scene === "fortune" ? 11000 : 10800, performance.now());
      }
    }

    frame(now) {
      if (!this.running) return;
      if (this.completingAt) {
        const progress = clamp01((now - this.completingAt) / 620);
        this.drawCompletion(progress, now);
        if (progress >= 1) {
          this.stop();
          return;
        }
      } else {
        const holdAt = this.scene === "fortune" ? 11000 : 10800;
        this.draw(Math.min(now - this.startedAt, holdAt), now);
      }
      this.frameId = requestAnimationFrame((time) => this.frame(time));
    }

    draw(time, now) {
      if (this.width <= 1 || this.height <= 1) return;
      this.drawBackground(now);
      if (this.scene === "fortune") this.drawFortune(time, now);
      else this.drawHexagram(time, now);
    }

    drawBackground(now) {
      const { context: ctx, width, height } = this;
      const cx = width / 2;
      const cy = height * 0.43;
      const gradient = ctx.createRadialGradient(cx, cy, 0, cx, cy, Math.max(width, height) * 0.75);
      gradient.addColorStop(0, PAPER_CENTER);
      gradient.addColorStop(0.58, "#faf7f0");
      gradient.addColorStop(1, PAPER);
      ctx.fillStyle = gradient;
      ctx.fillRect(0, 0, width, height);
      for (const star of this.stars) {
        const alpha = 0.08 + 0.13 * (0.5 + 0.5 * Math.sin(star.phase + now * 0.001));
        ctx.globalAlpha = alpha;
        ctx.fillStyle = GOLD;
        const y = ((star.y + now * star.speed) % 1) * height;
        ctx.fillRect(star.x * width, y, star.radius, star.radius);
      }
      ctx.globalAlpha = 1;
    }

    label(text, x, y, size, color = INK, alpha = 1, weight = "", maxWidth) {
      if (!text || alpha <= 0) return;
      const ctx = this.context;
      ctx.save();
      ctx.globalAlpha = alpha;
      ctx.fillStyle = color;
      ctx.font = `${weight ? `${weight} ` : ""}${size}px ${SERIF}`;
      ctx.textAlign = "center";
      ctx.textBaseline = "middle";
      if (maxWidth) ctx.fillText(text, x, y, maxWidth);
      else ctx.fillText(text, x, y);
      ctx.restore();
    }

    node(x, y, radius, color, alpha = 1, glow = 0) {
      const ctx = this.context;
      ctx.save();
      ctx.globalAlpha = alpha;
      ctx.fillStyle = color;
      ctx.shadowColor = color;
      ctx.shadowBlur = glow;
      ctx.beginPath();
      ctx.arc(x, y, radius, 0, Math.PI * 2);
      ctx.fill();
      ctx.restore();
    }

    line(x1, y1, x2, y2, color, alpha = 1, width = 1) {
      const ctx = this.context;
      ctx.save();
      ctx.globalAlpha = alpha;
      ctx.strokeStyle = color;
      ctx.lineWidth = width;
      ctx.beginPath();
      ctx.moveTo(x1, y1);
      ctx.lineTo(x2, y2);
      ctx.stroke();
      ctx.restore();
    }

    drawYao(cx, cy, width, lineWidth, yang, alpha, glow = 0) {
      const ctx = this.context;
      ctx.save();
      ctx.globalAlpha = alpha;
      ctx.fillStyle = INK;
      ctx.shadowColor = GOLD;
      ctx.shadowBlur = glow;
      if (yang) {
        ctx.fillRect(cx - width / 2, cy - lineWidth / 2, width, lineWidth);
      } else {
        const gap = width * 0.18;
        ctx.fillRect(cx - width / 2, cy - lineWidth / 2, (width - gap) / 2, lineWidth);
        ctx.fillRect(cx + gap / 2, cy - lineWidth / 2, (width - gap) / 2, lineWidth);
      }
      ctx.restore();
    }

    drawGua(cx, cy, width, lineWidth, bits, alpha, glow = 0) {
      const gap = lineWidth * 1.7;
      const top = cy - (bits.length - 1) * gap / 2;
      bits.forEach((bit, index) => {
        this.drawYao(cx, top + (bits.length - 1 - index) * gap, width, lineWidth, bit === 1, alpha, glow);
      });
    }

    stageAlpha(time, start, end, fade = 300, hold = false) {
      const enter = smooth(start, start + fade, time);
      return hold ? enter : enter * (1 - smooth(end - fade, end, time));
    }

    drawTrigramRing(cx, cy, radius, width, lineWidth, alpha, now, entering, time) {
      const ctx = this.context;
      ctx.save();
      ctx.globalAlpha = alpha * 0.13;
      ctx.strokeStyle = GOLD;
      ctx.beginPath();
      ctx.arc(cx, cy, radius, 0, Math.PI * 2);
      ctx.stroke();
      ctx.restore();
      const breath = 1 + 0.005 * Math.sin(now / 620);
      TRIGRAMS.forEach((trigram, index) => {
        const progress = entering ? easeOut((time - 4700 - index * 120) / 650) : 1;
        if (progress <= 0) return;
        const [x, y] = point(cx, cy, radius * breath * progress, trigram.angle);
        this.drawGua(x, y, width, lineWidth, trigram.bits, alpha * progress, alpha * progress * 7);
        this.label(trigram.name, x, y + lineWidth * 5.2, 11, INK, alpha * progress * 0.68);
      });
    }

    drawHexagram(time, now) {
      const { width, height } = this;
      const cx = width / 2;
      const cy = height * 0.41;
      const scale = Math.min(width, height);
      if (time < 1800) {
        const alpha = this.stageAlpha(time, 0, 1800);
        this.node(cx, cy, 5.5 * (1 + 0.1 * Math.sin(now / 260)), INK_BRIGHT, alpha, 24);
        for (let ring = 0; ring < 3; ring += 1) {
          const progress = ((now / 1500) + ring / 3) % 1;
          const ctx = this.context;
          ctx.save();
          ctx.globalAlpha = (1 - progress) * 0.18 * alpha;
          ctx.strokeStyle = GOLD;
          ctx.beginPath();
          ctx.arc(cx, cy, 8 + progress * scale * 0.13, 0, Math.PI * 2);
          ctx.stroke();
          ctx.restore();
        }
      }
      if (time >= 1800 && time < 3300) {
        const alpha = this.stageAlpha(time, 1800, 3300);
        const progress = easeOut((time - 1850) / 850);
        const yaoWidth = scale * 0.19 * progress;
        const yaoLine = Math.max(scale * 0.013, 4);
        this.drawYao(cx, cy - yaoLine * 2.6, yaoWidth, yaoLine, true, alpha, 10);
        this.drawYao(cx, cy + yaoLine * 2.6, yaoWidth, yaoLine, false, alpha, 10);
      }
      if (time >= 3300 && time < 4700) {
        const alpha = this.stageAlpha(time, 3300, 4700);
        const distance = scale * 0.085;
        const yaoWidth = Math.max(scale * 0.055, 26);
        const yaoLine = Math.max(scale * 0.008, 3);
        SIXIANG.forEach((symbol, index) => {
          const progress = easeOut((time - 3330 - index * 150) / 520);
          if (progress <= 0) return;
          const x = cx + symbol.dx * distance;
          const y = cy + symbol.dy * distance;
          this.drawGua(x, y, yaoWidth * progress, yaoLine, symbol.bits, alpha * progress, 7);
          this.label(symbol.name, x, y + yaoLine * 5.3, 10, INK, alpha * progress * 0.7);
        });
      }
      const trigramRadius = scale * 0.205;
      const trigramWidth = Math.max(scale * 0.05, 24);
      const trigramLine = Math.max(scale * 0.0068, 2.6);
      if (time >= 4700 && time < 6800) {
        this.drawTrigramRing(cx, cy, trigramRadius, trigramWidth, trigramLine, this.stageAlpha(time, 4700, 6800), now, true, time);
      }
      if (time >= 6800) {
        const alpha = this.stageAlpha(time, 6800, 10800, 350, true);
        this.drawTrigramRing(cx, cy, trigramRadius, trigramWidth * 0.82, trigramLine * 0.82, alpha * 0.46, now, false, time);
        const ringRadius = scale * 0.34;
        const hexWidth = Math.max(scale * 0.024, 11);
        const hexLine = Math.max(scale * 0.0038, 1.35);
        const count = Math.floor(clamp01((time - 7000) / 3600) * 64);
        for (let index = 0; index < 64; index += 1) {
          const [x, y] = point(cx, cy, ringRadius, -90 + index * 360 / 64);
          this.node(x, y, 1.1, GOLD, alpha * 0.14);
          if (index < count) {
            const freshness = Math.max(0, 1 - (count - 1 - index) / 5);
            if (freshness > 0) this.line(cx, cy, x, y, GOLD, alpha * freshness * 0.2);
            this.drawGua(x, y, hexWidth, hexLine, hexBits(index), alpha * (0.55 + 0.38 * freshness), freshness * 6);
          }
        }
        if (count > 0) {
          const current = count - 1;
          this.drawGua(cx, cy - scale * 0.025, scale * 0.078, Math.max(scale * 0.0095, 4), hexBits(current), alpha, 11);
          this.label(HEXAGRAM_NAMES[current], cx, cy + scale * 0.058, Math.max(18, scale * 0.038), INK_BRIGHT, alpha, "600");
          this.label(`第 ${current + 1} 卦`, cx, cy + scale * 0.098, 11, DIM, alpha * 0.85);
        }
      }
      this.drawChrome(time, now, "易 经 · 两 仪 裂 变 推 衍", "易", HEX_STAGES, 10800, "hexagram");
    }

    drawFortune(time, now) {
      const { width, height } = this;
      const cx = width / 2;
      const cy = height * 0.41;
      const scale = Math.min(width, height);
      if (time < 2100) this.drawFiveMovements(time, now, cx, cy, scale);
      if (time >= 2100 && time < 3900) this.drawStems(time, cx, cy, scale);
      if (time >= 3900 && time < 5800) this.drawBranches(time, cx, cy, scale);
      if (time >= 5800 && time < 7900) this.drawSixQi(time, now, cx, cy, scale);
      if (time >= 7900) this.drawAnnualQi(time, now, cx, cy, scale);
      this.drawChrome(time, now, "黄 帝 内 经 · 五 运 六 气", "气", FORTUNE_STAGES, 11000, "fortune");
    }

    drawFiveMovements(time, now, cx, cy, scale) {
      const alpha = this.stageAlpha(time, 0, 2100);
      const radius = scale * 0.17;
      const nodeRadius = Math.max(scale * 0.017, 8);
      const elements = [
        ["木", 180], ["火", -90], ["金", 0], ["水", 90], ["土", null],
      ];
      const positions = {};
      this.node(cx, cy, 5 + Math.sin(now / 260), GOLD_BRIGHT, alpha * (1 - easeOut((time - 200) / 800)), 20);
      elements.forEach(([element, degrees], index) => {
        const progress = easeOut((time - 500 - index * 170) / 500);
        if (progress <= 0) return;
        const x = degrees === null ? cx : cx + Math.cos(degrees * Math.PI / 180) * radius * progress;
        const y = degrees === null ? cy : cy + Math.sin(degrees * Math.PI / 180) * radius * progress;
        positions[element] = [x, y];
        this.node(x, y, nodeRadius * progress, ELEMENT_COLORS[element], alpha * progress, 10);
        this.label(element, x, y, Math.max(10, nodeRadius * 1.1), PAPER, alpha * progress, "600");
      });
      const order = ["木", "火", "土", "金", "水"];
      order.forEach((element, index) => {
        const from = positions[element];
        const to = positions[order[(index + 1) % order.length]];
        if (from && to) this.line(from[0], from[1], to[0], to[1], GOLD, alpha * smooth(1450 + index * 120, 1750 + index * 120, time) * 0.32);
      });
    }

    drawStems(time, cx, cy, scale) {
      const alpha = this.stageAlpha(time, 2100, 3900);
      const stems = "甲乙丙丁戊己庚辛壬癸";
      const movements = ["土", "金", "水", "木", "火"];
      const radius = scale * 0.29;
      for (let index = 0; index < 10; index += 1) {
        const progress = smooth(2150 + index * 85, 2450 + index * 85, time);
        if (progress <= 0) continue;
        const [x, y] = point(cx, cy, radius, -90 + index * 36);
        const element = movements[index % 5];
        this.node(x, y, 2.8, ELEMENT_COLORS[element], alpha * progress, 5);
        this.label(stems[index], x, y - 13, 13, ELEMENT_COLORS[element], alpha * progress, "600");
      }
      for (let index = 0; index < 5; index += 1) {
        const progress = smooth(3100 + index * 100, 3400 + index * 100, time);
        const [x1, y1] = point(cx, cy, radius, -90 + index * 36);
        const [x2, y2] = point(cx, cy, radius, -90 + (index + 5) * 36);
        this.line(x1, y1, x2, y2, ELEMENT_COLORS[movements[index]], alpha * progress * 0.38);
        this.label(movements[index], (x1 + x2) / 2, (y1 + y2) / 2, 14, ELEMENT_COLORS[movements[index]], alpha * progress, "600");
      }
    }

    drawBranches(time, cx, cy, scale) {
      const alpha = this.stageAlpha(time, 3900, 5800);
      const branches = "子丑寅卯辰巳午未申酉戌亥";
      const qiNames = ["少阴君火", "太阴湿土", "少阳相火", "阳明燥金", "太阳寒水", "厥阴风木"];
      const radius = scale * 0.29;
      const branchAngle = (index) => -90 + ((index - 6 + 12) % 12) * 30;
      for (let index = 0; index < 12; index += 1) {
        const progress = smooth(3950 + index * 65, 4220 + index * 65, time);
        const [x, y] = point(cx, cy, radius, branchAngle(index));
        this.node(x, y, 2.3, GOLD, alpha * progress, 4);
        this.label(branches[index], x, y - 12, 12, INK, alpha * progress);
      }
      qiNames.forEach((name, index) => {
        const progress = smooth(4850 + index * 120, 5150 + index * 120, time);
        const [x1, y1] = point(cx, cy, radius, branchAngle(index));
        const [x2, y2] = point(cx, cy, radius, branchAngle(index + 6));
        const element = QI6.find((item) => item.name === name)?.element || "土";
        this.line(x1, y1, x2, y2, ELEMENT_COLORS[element], alpha * progress * 0.34);
        const [labelX, labelY] = point(cx, cy, radius + scale * 0.05, branchAngle(index));
        this.label(name, labelX, labelY, 10.5, ELEMENT_COLORS[element], alpha * progress, "600");
      });
    }

    drawSixQi(time, now, cx, cy, scale) {
      const alpha = this.stageAlpha(time, 5800, 7900);
      const radius = scale * 0.255;
      const drift = now * 0.0015;
      const ctx = this.context;
      ctx.save();
      ctx.globalAlpha = alpha * 0.13;
      ctx.strokeStyle = GOLD;
      ctx.beginPath();
      ctx.arc(cx, cy, radius, 0, Math.PI * 2);
      ctx.stroke();
      ctx.restore();
      QI6.forEach((qi, index) => {
        const progress = easeOut((time - 5850 - index * 170) / 540);
        const [x, y] = point(cx, cy, radius * progress, -90 + index * 60 + drift);
        const nodeRadius = Math.max(scale * 0.014, 7) * progress;
        this.node(x, y, nodeRadius, ELEMENT_COLORS[qi.element], alpha * progress, 9);
        this.label(qi.name, x, y - nodeRadius - 11, 11, ELEMENT_COLORS[qi.element], alpha * progress, "600");
        this.label(["初之气", "二之气", "三之气", "四之气", "五之气", "终之气"][index], x, y + nodeRadius + 11, 9, DIM, alpha * progress);
      });
      this.node(cx, cy, 4 + Math.sin(now / 300), GOLD_BRIGHT, alpha * 0.9, 16);
    }

    drawAnnualQi(time, now, cx, cy, scale) {
      const alpha = this.stageAlpha(time, 7900, 11000, 350, true);
      const sixQi = this.data.sixQi || {};
      const pillar = this.data.yearPillar || "岁运";
      const movement = this.data.movement || "中运合参";
      const sitian = sixQi.sitian || "司天气候";
      const zaiquan = sixQi.zaiquan || "在泉气化";
      const currentStep = Math.max(1, Math.min(6, Number(sixQi.step) || 1));
      this.label("司 天", cx, cy - scale * 0.205, 10, DIM, alpha * smooth(7950, 8400, time));
      this.label(sitian, cx, cy - scale * 0.172, 15, INK, alpha * smooth(7950, 8400, time), "600");
      this.label(zaiquan, cx, cy + scale * 0.172, 15, INK, alpha * smooth(8200, 8650, time), "600");
      this.label("在 泉", cx, cy + scale * 0.205, 10, DIM, alpha * smooth(8200, 8650, time));
      this.label(pillar, cx, cy - scale * 0.01, Math.max(21, scale * 0.047), INK_BRIGHT, alpha * smooth(8500, 9050, time), "600");
      this.label(movement, cx, cy + scale * 0.05, 12, GOLD, alpha * smooth(8500, 9050, time), "600", scale * 0.48);
      const radius = scale * 0.285;
      QI6.forEach((qi, index) => {
        const progress = smooth(9150 + index * 240, 9440 + index * 240, time);
        const [x, y] = point(cx, cy, radius, -90 + index * 60);
        const current = index + 1 === currentStep;
        const pulse = current ? 0.5 + 0.5 * Math.sin(now / 230) : 0;
        this.node(x, y, Math.max(scale * 0.01, 5.5) + (current ? 2 : 0), ELEMENT_COLORS[qi.element], alpha * progress, 7 + pulse * 10);
        if (current) {
          const ctx = this.context;
          ctx.save();
          ctx.globalAlpha = alpha * (0.28 + pulse * 0.3);
          ctx.strokeStyle = CINNABAR;
          ctx.beginPath();
          ctx.arc(x, y, Math.max(scale * 0.019, 10) + pulse * 2, 0, Math.PI * 2);
          ctx.stroke();
          ctx.restore();
          this.label("当今", x, y - Math.max(scale * 0.035, 19), 9, CINNABAR, alpha * progress, "600");
        }
        this.label(`${index + 1 === 6 ? "终" : ["初", "二", "三", "四", "五"][index]}之气`, x, y + Math.max(scale * 0.029, 16), 9.5, current ? INK_BRIGHT : DIM, alpha * progress, current ? "600" : "");
      });
    }

    drawChrome(time, now, title, seal, stages, holdAt, scene) {
      const { width, height, context: ctx } = this;
      this.label(title, width / 2, 26, width < 520 ? 11 : 13, INK, 0.58, "600");
      ctx.save();
      ctx.translate(width - (width < 520 ? 38 : 48), 14);
      ctx.globalAlpha = 0.88;
      ctx.fillStyle = CINNABAR;
      ctx.beginPath();
      if (ctx.roundRect) ctx.roundRect(0, 0, 28, 28, 4);
      else ctx.rect(0, 0, 28, 28);
      ctx.fill();
      ctx.restore();
      this.label(seal, width - (width < 520 ? 24 : 34), 28, 17, "#fffaf0", 1, "600");
      const stage = [...stages].reverse().find((item) => time >= item[0]) || stages[0];
      const stageProgress = smooth(stage[0], stage[0] + 280, time);
      this.label(stage[2], width / 2, height - 82, width < 520 ? 15 : 18, INK_BRIGHT, 0.55 + stageProgress * 0.4, "600");
      this.label(stage[3], width / 2, height - 60, width < 520 ? 9.5 : 11.5, DIM, 0.72, "", width - 48);
      const slotWidth = Math.min(30, (width - 96) / 9);
      const slotGap = Math.min(10, slotWidth * 0.36);
      const totalWidth = slotWidth * 6 + slotGap * 5;
      const filled = Math.min(6, Math.floor(clamp01(time / holdAt) * 6));
      for (let index = 0; index < 6; index += 1) {
        const x = width / 2 - totalWidth / 2 + index * (slotWidth + slotGap);
        const y = height - 34;
        ctx.save();
        ctx.globalAlpha = 0.2;
        ctx.strokeStyle = scene === "fortune" ? ELEMENT_COLORS[QI6[index].element] : GOLD;
        ctx.strokeRect(x, y, slotWidth, 4);
        if (index < filled) {
          ctx.globalAlpha = 0.78;
          ctx.fillStyle = scene === "fortune" ? ELEMENT_COLORS[QI6[index].element] : GOLD;
          ctx.fillRect(x, y, slotWidth, 4);
        } else if (index === filled && time < holdAt) {
          ctx.globalAlpha = 0.38 + 0.18 * Math.sin(now / 220);
          ctx.fillStyle = scene === "fortune" ? ELEMENT_COLORS[QI6[index].element] : GOLD;
          ctx.fillRect(x, y, slotWidth * ((time % (holdAt / 6)) / (holdAt / 6)), 4);
        }
        ctx.restore();
      }
    }

    drawCompletion(progress, now) {
      this.drawBackground(now);
      const { width, height } = this;
      const cx = width / 2;
      const cy = height * 0.41;
      const scale = Math.min(width, height);
      const eased = easeOut(progress);
      if (this.scene === "fortune") {
        const radius = scale * 0.285 * (1 - eased);
        QI6.forEach((qi, index) => {
          const [x, y] = point(cx, cy, radius, -90 + index * 60);
          if (radius > 5) this.node(x, y, Math.max(scale * 0.01, 5), ELEMENT_COLORS[qi.element], (1 - eased) * 0.78, 6);
        });
        this.drawChrome(11000, now, "黄 帝 内 经 · 五 运 六 气", "气", [[0, 1, "归 一", "谨守病机，无失气宜"]], 11000, "fortune");
      } else {
        const radius = scale * 0.34 * (1 - eased);
        for (let index = 0; index < 64 && radius > 5; index += 1) {
          const [x, y] = point(cx, cy, radius, -90 + index * 360 / 64);
          this.drawGua(x, y, Math.max(scale * 0.023, 10), Math.max(scale * 0.0036, 1.3), hexBits(index), (1 - eased) * 0.68);
        }
        this.drawChrome(10800, now, "易 经 · 两 仪 裂 变 推 衍", "易", [[0, 1, "归 一", "万物负阴而抱阳，冲气以为和"]], 10800, "hexagram");
      }
      this.node(cx, cy, 3 + eased * 6, INK_BRIGHT, 0.35 + eased * 0.65, 12 + eased * 28);
    }
  }

  global.HeavenLoadingCanvas = HeavenLoadingCanvas;
})(window);