Implement synchronized LED wall output

2026-07-16 12:52:42 +08:00
parent 8590fafac1
commit fe906e028b
11 changed files with 335 additions and 283 deletions
@@ -3,48 +3,48 @@
 <head>
  <meta charset="utf-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1" />
-  <title>LED Wall Output</title>
+  <title>LED Output</title>
  <link rel="stylesheet" href="/static/output/styles.css" />
 </head>
 <body>
-  <main id="viewport" class="viewport">
-    <section id="wall" class="wall" aria-label="LED wall output">
-      <canvas id="motionCanvas" class="motionCanvas"></canvas>
-      <div class="gridLayer"></div>
+  <main class="viewport">
+    <section id="wall" class="wall">
+      <canvas id="motionCanvas" class="motion-canvas"></canvas>
+      <div class="grid-layer"></div>

-      <header class="wallHeader">
+      <header class="screen-header">
        <div>
-          <p id="eyebrow" class="eyebrow">Unified Timeline Rendering</p>
+          <p class="eyebrow">Tile-aware timeline rendering</p>
          <h1 id="sceneTitle">LED 大屏投放平台</h1>
        </div>
-        <div class="metrics">
-          <strong id="clock">--:--:--</strong>
-          <span id="version">v0</span>
+        <div class="header-metrics">
+          <strong id="clockText">--:--:--</strong>
+          <span id="versionText">v0</span>
        </div>
      </header>

      <section class="scene active" data-view="overview">
-        <div class="headline">
-          <h2>双 GPU 输出，统一时间轴</h2>
-          <p>左右服务器各自渲染半屏，但所有场景、动画、地图相机、视频时间都由同一个服务端时间轴驱动。</p>
+        <div class="hero-copy">
+          <h2>双 GPU 本地渲染，统一时间轴同步</h2>
+          <p>左右输出端各自渲染半屏，但场景、动画、地图相机、视频时间由同一个服务端时间轴驱动。</p>
        </div>
-        <div id="overviewKpis" class="kpiGrid"></div>
-        <div id="overviewBars" class="bars"></div>
+        <div id="overviewCards" class="card-grid"></div>
+        <div id="timelineBars" class="timeline-bars"></div>
      </section>

      <section class="scene" data-view="energy">
-        <div class="headline">
+        <div class="hero-copy">
          <h2>能源驾驶舱</h2>
-          <p>适合 ECharts、Canvas、WebGL 地图和 Three.js 数字孪生。真实项目中应使用 camera.setViewOffset 做 tile-aware 渲染。</p>
+          <p>适合 WebGL、Three.js、地图和视频组件。生产接入时使用同一 camera state 和 serverTime 渲染。</p>
        </div>
-        <div class="energyMap">
-          <div class="flowLine lineA"></div>
-          <div class="flowLine lineB"></div>
-          <div class="flowNode nodeA">园区供电</div>
-          <div class="flowNode nodeB">储能系统</div>
-          <div class="flowNode nodeC">负载中心</div>
+        <div class="flow-map">
+          <div class="flow-line line-a"></div>
+          <div class="flow-line line-b"></div>
+          <div class="flow-node node-a">园区供电</div>
+          <div class="flow-node node-b">储能系统</div>
+          <div class="flow-node node-c">业务负载</div>
        </div>
-        <div class="sideStats">
+        <div class="side-stats">
          <article><span>实时功率</span><strong id="powerValue">8.42 MW</strong></article>
          <article><span>负载趋势</span><strong id="trendValue">+3.8%</strong></article>
          <article><span>调度策略</span><strong id="modeValue">均衡</strong></article>
@@ -52,12 +52,12 @@
      </section>

      <section class="scene" data-view="security">
-        <div class="headline">
+        <div class="hero-copy">
          <h2>安防态势</h2>
-          <p>视频墙、告警卡片和地图联动都通过结构化动作同步触发，不在输出端执行任意远程脚本。</p>
+          <p>视频墙、地图联动和告警卡片通过结构化动作同步触发，左右节点只按计划时间提交状态。</p>
        </div>
-        <div id="cameraGrid" class="cameraGrid"></div>
-        <div id="alertRail" class="alertRail"></div>
+        <div id="cameraGrid" class="camera-grid"></div>
+        <div id="alertRail" class="alert-rail"></div>
      </section>
    </section>
    <aside id="hud" class="hud"></aside>
@@ -1,34 +1,36 @@
-const APP_VERSION = "1.0.0";
-const hud = document.querySelector("#hud");
+const APP_VERSION = "3.0.0";
+
 const wall = document.querySelector("#wall");
 const canvas = document.querySelector("#motionCanvas");
 const ctx = canvas.getContext("2d", { alpha: true });
-const clock = document.querySelector("#clock");
-const version = document.querySelector("#version");
+const hud = document.querySelector("#hud");
 const sceneTitle = document.querySelector("#sceneTitle");
+const versionText = document.querySelector("#versionText");
+const clockText = document.querySelector("#clockText");
 const tileId = location.pathname.startsWith("/output/") ? location.pathname.split("/").pop() : "left";

-const sceneNames = {
+const sceneTitles = {
  overview: "LED 大屏投放平台",
  energy: "能源驾驶舱",
  security: "安防态势",
 };

-let ws = null;
 let tile = null;
 let state = null;
-let paused = false;
-let pageIndex = 0;
-let clockOffsetMs = 0;
+let ws = null;
+let nodeId = sessionStorage.getItem("led-platform-node-id");
+let serverOffsetFromPerfMs = Date.now() - performance.now();
 let bestRttMs = Number.POSITIVE_INFINITY;
-let pendingCommands = new Map();
+let clockSamples = [];
+let scheduledJobs = new Map();
 let frameCount = 0;
+let fps = 0;
+let frameTimeMs = 0;
 let droppedFrames = 0;
 let lastFrameAt = performance.now();
 let lastFpsAt = performance.now();
-let fps = 0;
-let frameTimeMs = 0;
-let nodeId = sessionStorage.getItem("led-platform-node-id");
+let pageIndex = 0;
+let paused = false;

 if (!nodeId) {
  const randomId = crypto.randomUUID ? crypto.randomUUID() : Math.random().toString(16).slice(2);
@@ -36,17 +38,17 @@ if (!nodeId) {
  sessionStorage.setItem("led-platform-node-id", nodeId);
 }

+function serverNowMs() {
+  return performance.now() + serverOffsetFromPerfMs;
+}
+
 function clientNowMs() {
  return Date.now();
 }

-function serverNowMs() {
-  return clientNowMs() + clockOffsetMs;
-}
-
 async function bootstrap() {
-  const res = await fetch(`/api/bootstrap/${tileId}`);
-  const data = await res.json();
+  const response = await fetch(`/api/bootstrap/${tileId}`);
+  const data = await response.json();
  tile = data.tile;
  applyState(data.state);
  buildStaticContent();
@@ -55,6 +57,37 @@ async function bootstrap() {
  requestAnimationFrame(renderLoop);
 }

+function buildStaticContent() {
+  document.querySelector("#overviewCards").innerHTML = [
+    ["同步模式", "时间轴"],
+    ["渲染节点", "双 GPU"],
+    ["逻辑宽度", "14880"],
+    ["逻辑高度", "3510"],
+    ["半屏宽度", "7440"],
+    ["目标帧率", "60"],
+  ].map(([label, value]) => `<article class="metric-card"><span>${label}</span><strong>${value}</strong></article>`).join("");
+
+  const bars = document.querySelector("#timelineBars");
+  bars.innerHTML = "";
+  for (let index = 0; index < 32; index += 1) {
+    const bar = document.createElement("i");
+    bar.style.height = `${180 + ((index * 137) % 760)}px`;
+    bars.append(bar);
+  }
+
+  document.querySelector("#cameraGrid").innerHTML = Array.from({ length: 8 }, (_, index) => {
+    const id = String(index + 1).padStart(2, "0");
+    return `<article class="camera-card"><strong>CAM-${id}</strong><span>在线 | 1080P | 低延迟</span></article>`;
+  }).join("");
+
+  document.querySelector("#alertRail").innerHTML = [
+    "北侧通道人员聚集",
+    "机房门禁异常",
+    "消防通道占用",
+    "视频质量波动",
+  ].map((text) => `<article class="alert-card">${text}</article>`).join("");
+}
+
 function layout() {
  if (!tile) return;
  const scale = Math.min(window.innerWidth / tile.width, window.innerHeight / tile.height);
@@ -65,80 +98,58 @@ function layout() {
  document.documentElement.style.setProperty("--offset-y", `${-tile.y * scale}px`);
  canvas.width = tile.wall_width;
  canvas.height = tile.wall_height;
-  updateHud();
-}
-
-function buildStaticContent() {
-  document.querySelector("#overviewKpis").innerHTML = [
-    ["渲染模式", "Local GPU"],
-    ["同步方式", "Timeline"],
-    ["逻辑宽度", "14,880"],
-    ["逻辑高度", "3,510"],
-    ["左/右分区", "7,440"],
-    ["目标帧率", "60 FPS"],
-  ].map(([label, value]) => `<article class="kpi"><span>${label}</span><strong>${value}</strong></article>`).join("");
-
-  const bars = document.querySelector("#overviewBars");
-  bars.innerHTML = "";
-  for (let i = 0; i < 32; i += 1) {
-    const bar = document.createElement("div");
-    bar.className = "bar";
-    bar.style.height = `${180 + ((i * 137) % 760)}px`;
-    bars.append(bar);
-  }
-
-  document.querySelector("#cameraGrid").innerHTML = Array.from({ length: 8 }, (_, index) => {
-    const id = String(index + 1).padStart(2, "0");
-    return `<article class="camera"><strong>CAM-${id}</strong><span>在线 | 1080P | 低延迟</span></article>`;
-  }).join("");
-
-  document.querySelector("#alertRail").innerHTML = [
-    "北侧通道人员聚集",
-    "机房门禁异常",
-    "消防通道占用",
-    "视频质量波动",
-  ].map((item) => `<article class="alert">${item}</article>`).join("");
 }

 function applyState(nextState) {
  state = nextState;
-  version.textContent = `v${state.version}`;
-  setScene(state.active_view);
-}
-
-function setScene(view) {
-  const normalized = view || "overview";
+  const view = state.active_view || "overview";
  document.querySelectorAll(".scene").forEach((scene) => {
-    scene.classList.toggle("active", scene.dataset.view === normalized);
+    scene.classList.toggle("active", scene.dataset.view === view);
  });
-  sceneTitle.textContent = sceneNames[normalized] || sceneNames.overview;
+  sceneTitle.textContent = sceneTitles[view] || sceneTitles.overview;
+  versionText.textContent = `v${state.version || 0}`;
  pulse();
 }

-function scheduleAt(applyAtMs, callback) {
-  const leadTimeMs = applyAtMs - serverNowMs();
-  const late = leadTimeMs < 80;
-  setTimeout(() => callback(late), Math.max(0, leadTimeMs));
+function scheduleJob(message, kind, callback) {
+  const applyAtMs = Number(message.payload.apply_at_ms);
+  scheduledJobs.set(message.command_id, {
+    id: message.command_id,
+    kind,
+    applyAtMs,
+    message,
+    callback,
+    preparedAtMs: serverNowMs(),
+  });
+}
+
+function drainScheduledJobs() {
+  if (!scheduledJobs.size) return;
+  const now = serverNowMs();
+  const ready = Array.from(scheduledJobs.values())
+    .filter((job) => now >= job.applyAtMs)
+    .sort((a, b) => a.applyAtMs - b.applyAtMs);
+  for (const job of ready) {
+    scheduledJobs.delete(job.id);
+    const late = now - job.applyAtMs > 50;
+    job.callback(late);
+  }
 }

 function prepareScene(message) {
-  pendingCommands.set(message.command_id, message.payload);
  sendAck(message, "prepared");
 }

 function commitScene(message) {
-  const payload = pendingCommands.get(message.command_id) || message.payload;
-  scheduleAt(payload.apply_at_ms, (late) => {
-    applyState(payload.state);
-    pendingCommands.delete(message.command_id);
+  scheduleJob(message, "scene", (late) => {
+    applyState(message.payload.state);
    sendAck(message, late ? "late" : "committed");
  });
 }

 function runComponentAction(message) {
-  const { action, args, apply_at_ms: applyAtMs } = message.payload;
-  scheduleAt(applyAtMs, (late) => {
-    applyAction(action, args || {});
+  scheduleJob(message, "action", (late) => {
+    applyAction(message.payload.action, message.payload.args || {});
    sendAck(message, late ? "late" : "action_committed");
  });
 }
@@ -146,16 +157,18 @@ function runComponentAction(message) {
 function applyAction(action, args) {
  if (action === "page.next") {
    pageIndex += 1;
-    rotateValues();
+    const views = ["overview", "energy", "security"];
+    applyState({ ...state, active_view: views[pageIndex % views.length], version: (state?.version || 0) + 1 });
  } else if (action === "page.prev") {
    pageIndex = Math.max(0, pageIndex - 1);
-    rotateValues();
+    const views = ["overview", "energy", "security"];
+    applyState({ ...state, active_view: views[pageIndex % views.length], version: (state?.version || 0) + 1 });
  } else if (action === "energy.mode") {
    document.querySelector("#modeValue").textContent = args.mode || "削峰";
  } else if (action === "security.alert") {
    const rail = document.querySelector("#alertRail");
    const alert = document.createElement("article");
-    alert.className = "alert pulse";
+    alert.className = "alert-card pulse";
    alert.textContent = args.text || "新增联动告警";
    rail.prepend(alert);
    while (rail.children.length > 5) rail.lastElementChild.remove();
@@ -167,17 +180,6 @@ function applyAction(action, args) {
  pulse();
 }

-function rotateValues() {
-  const values = [
-    ["8.42 MW", "+3.8%", "均衡"],
-    ["7.91 MW", "-1.2%", "削峰"],
-    ["9.08 MW", "+6.1%", "保供"],
-  ][pageIndex % 3];
-  document.querySelector("#powerValue").textContent = values[0];
-  document.querySelector("#trendValue").textContent = values[1];
-  document.querySelector("#modeValue").textContent = values[2];
-}
-
 function timelineMs() {
  if (!state) return 0;
  return Math.max(0, serverNowMs() - state.scene_started_at_ms);
@@ -194,34 +196,35 @@ function renderLoop(now) {
  }
  lastFrameAt = now;

+  drainScheduledJobs();
  drawMotion(paused ? 0 : timelineMs());
-  updateAnimatedBars(paused ? 0 : timelineMs());
+  animateBars(paused ? 0 : timelineMs());
  updateHud();
  requestAnimationFrame(renderLoop);
 }

 function drawMotion(t) {
  ctx.clearRect(0, 0, canvas.width, canvas.height);
-  ctx.globalAlpha = 0.72;
-  for (let i = 0; i < 24; i += 1) {
-    const phase = (t / 1000) + i * 0.42;
-    const x = (Math.sin(phase * 0.42) * 0.5 + 0.5) * canvas.width;
-    const y = (Math.cos(phase * 0.36) * 0.5 + 0.5) * canvas.height;
-    const r = 80 + (i % 5) * 28;
-    const grad = ctx.createRadialGradient(x, y, 0, x, y, r * 5);
-    grad.addColorStop(0, i % 2 ? "rgba(249,115,22,0.23)" : "rgba(20,184,166,0.25)");
-    grad.addColorStop(1, "rgba(0,0,0,0)");
-    ctx.fillStyle = grad;
+  ctx.globalAlpha = 0.75;
+  for (let i = 0; i < 28; i += 1) {
+    const phase = t / 1200 + i * 0.43;
+    const x = (Math.sin(phase * 0.46) * 0.5 + 0.5) * canvas.width;
+    const y = (Math.cos(phase * 0.37) * 0.5 + 0.5) * canvas.height;
+    const radius = 260 + (i % 6) * 70;
+    const gradient = ctx.createRadialGradient(x, y, 0, x, y, radius * 3.4);
+    gradient.addColorStop(0, i % 2 ? "rgba(249,115,22,0.18)" : "rgba(20,184,166,0.22)");
+    gradient.addColorStop(1, "rgba(0,0,0,0)");
+    ctx.fillStyle = gradient;
    ctx.beginPath();
-    ctx.arc(x, y, r * 5, 0, Math.PI * 2);
+    ctx.arc(x, y, radius * 3.4, 0, Math.PI * 2);
    ctx.fill();
  }
  ctx.globalAlpha = 1;
 }

-function updateAnimatedBars(t) {
-  document.querySelectorAll(".bar").forEach((bar, index) => {
-    const scale = 0.82 + (Math.sin(t / 760 + index * 0.36) + 1) * 0.16;
+function animateBars(t) {
+  document.querySelectorAll("#timelineBars i").forEach((bar, index) => {
+    const scale = 0.82 + (Math.sin(t / 720 + index * 0.38) + 1) * 0.16;
    bar.style.transform = `scaleY(${scale.toFixed(3)})`;
  });
 }
@@ -231,15 +234,31 @@ function pulse() {
  requestAnimationFrame(() => wall.classList.add("pulse"));
 }

-function updateHud() {
-  if (!tile) return;
-  const rtt = Number.isFinite(bestRttMs) ? Math.round(bestRttMs) : "--";
-  const offset = `${clockOffsetMs >= 0 ? "+" : ""}${Math.round(clockOffsetMs)}ms`;
-  hud.textContent = `${tile.id} | ${nodeId.slice(0, 18)} | ${fps.toFixed(1)}fps | ${frameTimeMs.toFixed(1)}ms | rtt ${rtt}ms | offset ${offset}`;
+function syncClock() {
+  if (!ws || ws.readyState !== WebSocket.OPEN) return;
+  ws.send(JSON.stringify({
+    type: "clock_ping",
+    node_id: nodeId,
+    client_send_ms: clientNowMs(),
+    client_send_perf_ms: performance.now(),
+  }));
+}
+
+function handleClockPong(payload) {
+  const receivePerf = performance.now();
+  const sendPerf = Number(payload.client_send_perf_ms ?? payload.client_send_ms);
+  if (!Number.isFinite(sendPerf)) return;
+  const rtt = receivePerf - sendPerf;
+  const midpointPerf = sendPerf + rtt / 2;
+  const offset = Number(payload.server_time_ms) - midpointPerf;
+  clockSamples.push({ rtt, offset });
+  clockSamples = clockSamples.sort((a, b) => a.rtt - b.rtt).slice(0, 8);
+  bestRttMs = clockSamples[0].rtt;
+  serverOffsetFromPerfMs = clockSamples.slice(0, 4).reduce((sum, item) => sum + item.offset, 0) / Math.min(4, clockSamples.length);
 }

 function sendAck(message, status) {
-  if (!ws || ws.readyState !== WebSocket.OPEN) return;
+  if (!ws || ws.readyState !== WebSocket.OPEN || !tile) return;
  ws.send(JSON.stringify({
    type: "ack",
    command_id: message.command_id,
@@ -248,31 +267,11 @@ function sendAck(message, status) {
    status,
    client_time_ms: clientNowMs(),
    server_estimated_ms: serverNowMs(),
-    clock_offset_ms: clockOffsetMs,
+    clock_offset_ms: serverOffsetFromPerfMs - (Date.now() - performance.now()),
    rtt_ms: Number.isFinite(bestRttMs) ? bestRttMs : null,
  }));
 }

-function syncClock() {
-  if (!ws || ws.readyState !== WebSocket.OPEN) return;
-  ws.send(JSON.stringify({ type: "clock_ping", node_id: nodeId, client_send_ms: clientNowMs() }));
-}
-
-function handleClockPong(payload) {
-  const receiveMs = clientNowMs();
-  const sendMs = payload.client_send_ms;
-  if (typeof sendMs !== "number") return;
-  const rtt = receiveMs - sendMs;
-  const estimatedServerAtReceive = payload.server_time_ms + rtt / 2;
-  const nextOffset = estimatedServerAtReceive - receiveMs;
-  if (rtt < bestRttMs) {
-    bestRttMs = rtt;
-    clockOffsetMs = nextOffset;
-  } else {
-    clockOffsetMs = clockOffsetMs * 0.85 + nextOffset * 0.15;
-  }
-}
-
 function sendTelemetry() {
  if (!ws || ws.readyState !== WebSocket.OPEN || !tile) return;
  ws.send(JSON.stringify({
@@ -296,21 +295,29 @@ function connectWs() {
      app_version: APP_VERSION,
      user_agent: navigator.userAgent,
    }));
-    syncClock();
+    for (let i = 0; i < 5; i += 1) setTimeout(syncClock, i * 120);
  });
  ws.addEventListener("close", () => setTimeout(connectWs, 1200));
  ws.addEventListener("message", (event) => {
    const message = JSON.parse(event.data);
    if (message.type === "clock_pong") handleClockPong(message.payload);
-    if (message.type === "state") commitScene({ command_id: message.command_id, payload: message.payload });
+    if (message.type === "state") scheduleJob({ command_id: message.command_id, payload: message.payload }, "state", () => applyState(message.payload.state || message.payload));
    if (message.type === "prepare_scene") prepareScene(message);
    if (message.type === "commit_scene") commitScene(message);
    if (message.type === "component_action") runComponentAction(message);
  });
 }

+function updateHud() {
+  if (!tile) return;
+  const rtt = Number.isFinite(bestRttMs) ? `${Math.round(bestRttMs)}ms` : "--";
+  const scale = Number.parseFloat(getComputedStyle(document.documentElement).getPropertyValue("--scale"));
+  const preview = scale < 0.75 ? " | 本地预览已缩小，生产 4K 拼接桌面会更清晰" : "";
+  hud.innerHTML = `${tile.id} | ${nodeId.slice(0, 18)} | ${fps.toFixed(1)}fps | ${frameTimeMs.toFixed(1)}ms | rtt ${rtt} | jobs ${scheduledJobs.size}<span class="preview-note">${preview}</span>`;
+}
+
 function tickClock() {
-  clock.textContent = new Date().toLocaleTimeString("zh-CN", { hour12: false });
+  clockText.textContent = new Date().toLocaleTimeString("zh-CN", { hour12: false });
 }

 window.addEventListener("resize", layout);
@@ -321,5 +328,5 @@ window.addEventListener("keydown", (event) => {
 bootstrap();
 tickClock();
 setInterval(tickClock, 1000);
-setInterval(syncClock, 2500);
+setInterval(syncClock, 2000);
 setInterval(sendTelemetry, 1000);
@@ -1,8 +1,8 @@
 :root {
  color-scheme: dark;
-  font-family: Inter, "Segoe UI", system-ui, sans-serif;
-  background: #000;
-  color: #f8fafc;
+  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", Arial, sans-serif;
+  background: #030712;
+  color: #f8fbff;
  --wall-width: 14880px;
  --wall-height: 3510px;
  --scale: 1;
@@ -23,10 +23,14 @@ body,
  overflow: hidden;
 }

+body {
+  background: #030712;
+}
+
 .viewport {
  position: fixed;
  inset: 0;
-  background: #020407;
+  background: #030712;
 }

 .wall {
@@ -39,33 +43,34 @@ body,
  transform-origin: 0 0;
  transform: translate(var(--offset-x), var(--offset-y)) scale(var(--scale));
  background:
-    linear-gradient(90deg, rgba(20, 184, 166, 0.14), transparent 34%, rgba(249, 115, 22, 0.12)),
-    #071018;
+    radial-gradient(circle at 50% 40%, rgba(20, 184, 166, 0.28), transparent 36%),
+    radial-gradient(circle at 82% 22%, rgba(249, 115, 22, 0.18), transparent 24%),
+    linear-gradient(135deg, #061528 0%, #0b1220 48%, #071018 100%);
 }

-.motionCanvas,
-.gridLayer {
+.motion-canvas,
+.grid-layer {
  position: absolute;
  inset: 0;
 }

-.gridLayer {
+.grid-layer {
  background-image:
-    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
-    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
+    linear-gradient(rgba(255,255,255,0.045) 2px, transparent 2px),
+    linear-gradient(90deg, rgba(255,255,255,0.045) 2px, transparent 2px);
  background-size: 240px 240px;
-  opacity: 0.72;
+  opacity: 0.74;
 }

-.wallHeader {
+.screen-header {
  position: absolute;
-  z-index: 3;
+  z-index: 4;
  left: 360px;
  right: 360px;
  top: 180px;
  display: flex;
-  align-items: flex-start;
  justify-content: space-between;
+  align-items: flex-start;
  gap: 120px;
 }

@@ -77,41 +82,45 @@ p {
 }

 .eyebrow {
-  margin-bottom: 36px;
+  margin-bottom: 38px;
  color: #5eead4;
  font-size: 58px;
+  line-height: 1;
  text-transform: uppercase;
 }

 h1 {
  font-size: 178px;
  line-height: 1;
+  font-weight: 820;
+  color: #ffffff;
+  text-shadow: 0 0 36px rgba(20, 184, 166, 0.46);
 }

-.metrics {
+.header-metrics {
  display: grid;
  justify-items: end;
-  gap: 24px;
+  gap: 26px;
 }

-.metrics strong {
-  font-size: 108px;
+.header-metrics strong {
+  font-size: 112px;
  line-height: 1;
 }

-.metrics span {
+.header-metrics span {
  color: #cbd5e1;
-  font-size: 48px;
+  font-size: 52px;
 }

 .scene {
  position: absolute;
-  z-index: 2;
-  inset: 620px 360px 240px;
+  z-index: 3;
+  inset: 620px 360px 250px;
  opacity: 0;
  pointer-events: none;
-  transform: translateY(50px);
-  transition: opacity 360ms ease, transform 360ms ease;
+  transform: translateY(54px);
+  transition: opacity 260ms linear, transform 260ms linear;
 }

 .scene.active {
@@ -120,58 +129,61 @@ h1 {
  transform: translateY(0);
 }

-.headline {
-  max-width: 5900px;
+.hero-copy {
+  max-width: 6200px;
 }

-.headline h2 {
-  font-size: 156px;
+.hero-copy h2 {
+  font-size: 158px;
  line-height: 1.05;
+  font-weight: 820;
 }

-.headline p {
-  margin-top: 42px;
-  color: #cbd5e1;
-  font-size: 62px;
-  line-height: 1.35;
+.hero-copy p {
+  margin-top: 44px;
+  color: #dbeafe;
+  font-size: 66px;
+  line-height: 1.34;
 }

-.kpiGrid {
-  margin-top: 140px;
+.card-grid {
+  margin-top: 150px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 72px;
 }

-.kpi,
-.sideStats article,
-.camera {
-  border: 3px solid rgba(255,255,255,0.12);
+.metric-card,
+.side-stats article,
+.camera-card {
+  border: 4px solid rgba(94, 234, 212, 0.32);
  border-radius: 8px;
-  background: rgba(255,255,255,0.055);
+  background: rgba(15, 23, 42, 0.76);
+  box-shadow: inset 0 0 60px rgba(20, 184, 166, 0.10), 0 0 42px rgba(20, 184, 166, 0.12);
 }

-.kpi {
-  min-height: 500px;
-  padding: 70px;
+.metric-card {
+  min-height: 520px;
+  padding: 74px;
 }

-.kpi span,
-.sideStats span {
+.metric-card span,
+.side-stats span {
  display: block;
-  color: #aeb7c2;
+  color: #a7f3d0;
  font-size: 58px;
 }

-.kpi strong,
-.sideStats strong {
+.metric-card strong,
+.side-stats strong {
  display: block;
-  margin-top: 46px;
-  font-size: 130px;
+  margin-top: 48px;
+  color: #ffffff;
+  font-size: 136px;
  line-height: 1;
 }

-.bars {
+.timeline-bars {
  position: absolute;
  left: 0;
  right: 0;
@@ -179,65 +191,65 @@ h1 {
  height: 960px;
  display: grid;
  grid-template-columns: repeat(32, 1fr);
-  gap: 24px;
  align-items: end;
+  gap: 24px;
 }

-.bar {
-  min-height: 100px;
+.timeline-bars i {
+  min-height: 120px;
  border-radius: 8px 8px 0 0;
  background: linear-gradient(180deg, #14b8a6, #f97316);
  transform-origin: bottom;
 }

-.energyMap {
+.flow-map {
  position: absolute;
  left: 0;
-  top: 780px;
+  top: 790px;
  width: 8600px;
  height: 1760px;
 }

-.flowLine {
+.flow-line {
  position: absolute;
-  height: 28px;
+  height: 30px;
  border-radius: 8px;
  background: linear-gradient(90deg, #14b8a6, #facc15, #f97316);
-  box-shadow: 0 0 80px rgba(20,184,166,0.42);
+  box-shadow: 0 0 90px rgba(20, 184, 166, 0.46);
 }

-.lineA {
+.line-a {
  left: 1100px;
  top: 690px;
  width: 5200px;
  transform: rotate(7deg);
 }

-.lineB {
+.line-b {
  left: 2300px;
  top: 1050px;
  width: 4200px;
  transform: rotate(-10deg);
 }

-.flowNode {
+.flow-node {
  position: absolute;
  width: 980px;
  height: 420px;
  display: grid;
  place-items: center;
-  border: 5px solid rgba(94,234,212,0.55);
+  border: 5px solid rgba(94, 234, 212, 0.62);
  border-radius: 8px;
-  background: rgba(8,20,28,0.92);
-  font-size: 76px;
-  font-weight: 760;
+  background: rgba(8, 20, 28, 0.92);
+  font-size: 80px;
+  font-weight: 780;
 }

-.nodeA { left: 220px; top: 520px; }
-.nodeB { left: 3600px; top: 220px; }
-.nodeC { left: 7020px; top: 900px; }
+.node-a { left: 220px; top: 520px; }
+.node-b { left: 3600px; top: 220px; }
+.node-c { left: 7020px; top: 900px; }

-.sideStats {
+.side-stats {
  position: absolute;
  right: 0;
  top: 690px;
@@ -247,12 +259,12 @@ h1 {
  gap: 64px;
 }

-.sideStats article {
-  min-height: 610px;
+.side-stats article {
+  min-height: 620px;
  padding: 78px;
 }

-.cameraGrid {
+.camera-grid {
  position: absolute;
  left: 0;
  top: 760px;
@@ -262,26 +274,26 @@ h1 {
  gap: 52px;
 }

-.camera {
+.camera-card {
  height: 700px;
-  padding: 52px;
+  padding: 58px;
  display: grid;
  align-content: space-between;
  background:
    linear-gradient(135deg, rgba(20,184,166,0.22), rgba(249,115,22,0.14)),
-    rgba(255,255,255,0.055);
+    rgba(15,23,42,0.78);
 }

-.camera strong {
-  font-size: 72px;
+.camera-card strong {
+  font-size: 78px;
 }

-.camera span {
-  color: #cbd5e1;
-  font-size: 48px;
+.camera-card span {
+  color: #dbeafe;
+  font-size: 52px;
 }

-.alertRail {
+.alert-rail {
  position: absolute;
  right: 0;
  top: 740px;
@@ -290,21 +302,12 @@ h1 {
  gap: 44px;
 }

-.alert {
-  padding: 54px 64px;
-  border-left: 18px solid #f97316;
+.alert-card {
+  padding: 58px 68px;
+  border-left: 20px solid #f97316;
  border-radius: 8px;
-  background: rgba(255,255,255,0.065);
-  font-size: 60px;
-}
-
-.pulse {
-  animation: flash 650ms ease;
-}
-
-@keyframes flash {
-  0% { outline: 16px solid rgba(250,204,21,0.78); }
-  100% { outline: 0 solid rgba(250,204,21,0); }
+  background: rgba(15, 23, 42, 0.78);
+  font-size: 64px;
 }

 .hud {
@@ -312,11 +315,24 @@ h1 {
  right: 12px;
  bottom: 12px;
  z-index: 10;
-  max-width: min(860px, calc(100vw - 24px));
-  padding: 8px 10px;
+  max-width: min(980px, calc(100vw - 24px));
+  padding: 9px 11px;
  border-radius: 6px;
-  background: rgba(0,0,0,0.68);
-  color: rgba(255,255,255,0.78);
+  background: rgba(0,0,0,0.72);
+  color: rgba(255,255,255,0.82);
  font-size: 12px;
  pointer-events: none;
 }
+
+.preview-note {
+  color: #facc15;
+}
+
+.pulse {
+  animation: flash 520ms ease;
+}
+
+@keyframes flash {
+  0% { outline: 18px solid rgba(94, 234, 212, 0.55); }
+  100% { outline: 0 solid rgba(94, 234, 212, 0); }
+}