diff --git a/data/wiki/guanghan_topology_demo.html b/data/wiki/guanghan_topology_demo.html
index 57ecd5d..bd6ffc9 100644
--- a/data/wiki/guanghan_topology_demo.html
+++ b/data/wiki/guanghan_topology_demo.html
@@ -34,31 +34,20 @@
   .legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 13px 24px; margin: 20px 0; padding: 13px 18px; border: 1px solid var(--border); border-radius: 12px; background: rgba(13,23,40,0.84); }
   .legend-item { display: inline-flex; align-items: center; gap: 9px; color: #c8d5e7; font-size: 0.86rem; }
   .legend-line { display: inline-block; width: 46px; border-top: 4px solid; }
-  .legend-line.structural { border-color: var(--structural); }
-  .legend-line.pressurized { border-color: var(--pressurized); }
-  .legend-line.utility { border-color: var(--utility); border-top-style: dashed; }
   .legend-chip { width: 19px; height: 13px; border: 2px solid var(--radiator); background: #665511; border-radius: 3px; }
   .map-shell { overflow: auto; border: 1px solid var(--border); border-radius: 18px; background: #08101e; box-shadow: 0 24px 70px rgba(0,0,0,0.34); }
   .topology-map { display: block; width: 100%; min-width: 1080px; height: auto; background: linear-gradient(rgba(18,36,60,0.21) 1px, transparent 1px), linear-gradient(90deg, rgba(18,36,60,0.21) 1px, transparent 1px), #08101e; background-size: 48px 48px; }
   .connection { fill: none; vector-effect: non-scaling-stroke; stroke-linecap: square; }
-  .connection.structural { stroke: var(--structural); stroke-width: 6; }
-  .connection.pressurized { stroke: var(--pressurized); stroke-width: 9; }
-  .connection.utility { stroke: var(--utility); stroke-width: 4; stroke-dasharray: 13 10; }
   .topology-node { cursor: pointer; outline: none; }
   .topology-node rect { vector-effect: non-scaling-stroke; transition: filter 150ms ease, stroke-width 150ms ease; }
   .topology-node:hover rect, .topology-node:focus-visible rect { filter: brightness(1.25); stroke-width: 5; }
-  .node-card { fill: #10263a; stroke: var(--habitat); stroke-width: 3; }
-  .core-card { fill: #3b250d; stroke: var(--core); stroke-width: 5; }
-  .power-card { fill: #2a2810; stroke: var(--power); stroke-width: 3; }
-  .power-node-card { fill: #393412; stroke: var(--power); stroke-width: 5; }
-  .vehicle-card { fill: #291c34; stroke: var(--vehicle); stroke-width: 3; }
   .node-title { fill: var(--text); font-size: 25px; font-weight: 700; text-anchor: middle; }
   .node-meta { fill: #a6b5c9; font-size: 17px; text-anchor: middle; }
   .node-hint { fill: #71849e; font-size: 14px; text-anchor: middle; }
   .radiator { pointer-events: none; }
-  .radiator rect { fill: #6b5814; stroke: var(--radiator); stroke-width: 2; vector-effect: non-scaling-stroke; }
-  .radiator line { stroke: #f8e798; stroke-width: 1.5; vector-effect: non-scaling-stroke; }
-  .radiator-label { fill: #f4df7b; font-size: 15px; font-weight: 650; text-anchor: middle; }
+  .radiator rect { vector-effect: non-scaling-stroke; }
+  .radiator line { stroke-width: 1.5; vector-effect: non-scaling-stroke; }
+  .radiator-label { font-size: 15px; font-weight: 650; text-anchor: middle; }
   .click-note { margin: 13px 0 0; color: var(--muted); font-size: 0.84rem; text-align: center; }
   body.modal-open { overflow: hidden; }
   .modal-backdrop { position: fixed; inset: 0; z-index: 20; display: none; align-items: center; justify-content: center; padding: 24px; background: rgba(2,7,14,0.82); backdrop-filter: blur(8px); }
@@ -101,12 +90,7 @@
     <span class="snapshot-info" id="snapshot-info"></span>
   </div>
 
-  <div class="legend" aria-label="图例">
-    <span class="legend-item"><i class="legend-line structural"></i>结构直连</span>
-    <span class="legend-item"><i class="legend-line pressurized"></i>加压走道</span>
-    <span class="legend-item"><i class="legend-line utility"></i>燃料 / 供电</span>
-    <span class="legend-item"><i class="legend-chip"></i>大型折叠散热面板</span>
-  </div>
+  <div class="legend" id="legend" aria-label="图例"></div>
 
   <div id="loading-msg" class="loading-msg">正在从 API 加载拓扑数据...</div>
   <div id="error-msg" class="error-msg" style="display:none;"></div>
@@ -228,10 +212,40 @@ function splitEndpoint(endpoint) {
   return separator === -1 ? endpoint : endpoint.slice(0, separator);
 }
 
-function connectionClass(type) {
-  if (type === 'structural_mount') return 'structural';
-  if (type === 'pressurized_passage') return 'pressurized';
-  return 'utility';
+function getPresentation() {
+  const presentation = currentData?.layout?.presentation;
+  if (!presentation) throw new Error('拓扑表现层资料未记录');
+  return presentation;
+}
+
+function requireStyle(collection, key, label) {
+  const style = collection?.[key];
+  if (!style) throw new Error(`${label} 未记录: ${key}`);
+  return style;
+}
+
+function setOptionalAttr(element, name, value) {
+  if (value !== null && value !== undefined && value !== '') {
+    element.setAttribute(name, value);
+  }
+}
+
+function applyNodeStyle(rect, nodeStyle) {
+  rect.setAttribute('fill', nodeStyle.fillColor);
+  rect.setAttribute('stroke', nodeStyle.strokeColor);
+  rect.setAttribute('stroke-width', nodeStyle.strokeWidth);
+  rect.setAttribute('rx', nodeStyle.cornerRadius);
+}
+
+function applyTextStyle(textElement, color) {
+  if (color) textElement.setAttribute('fill', color);
+}
+
+function applyEdgeStyle(line, edgeStyle) {
+  line.setAttribute('stroke', edgeStyle.strokeColor);
+  line.setAttribute('stroke-width', edgeStyle.strokeWidth);
+  setOptionalAttr(line, 'stroke-dasharray', edgeStyle.dashArray);
+  setOptionalAttr(line, 'stroke-linecap', edgeStyle.lineCap);
 }
 
 function edgePoint(source, target) {
@@ -267,40 +281,114 @@ function fitSvgText(textElement, fullText, maxWidth) {
   }
 }
 
-function appendNodeText(group, node, className, text, y) {
+function appendNodeText(group, node, className, text, y, color) {
   if (!text) return;
   const element = svgElement('text', {
     class: className,
     x: node.x + node.width / 2,
     y,
   });
+  applyTextStyle(element, color);
   group.appendChild(element);
   fitSvgText(element, text, node.width - 24);
 }
 
-function createRadiator(node) {
-  const group = svgElement('g', { class: 'radiator', 'aria-label': '大型折叠散热面板' });
-  const width = Math.min(130, node.width * 0.55);
-  const x = node.x + node.width * 0.55;
-  const y = node.y - 18;
-  group.appendChild(svgElement('rect', { x, y, width, height: 16, rx: 3 }));
-  for (let index = 1; index < 4; index += 1) {
-    const lineX = x + width * index / 4;
-    group.appendChild(svgElement('line', { x1: lineX, y1: y + 1, x2: lineX, y2: y + 15 }));
+function createRadiator(node, style) {
+  const group = svgElement('g', { class: 'radiator', 'aria-label': style.displayName });
+  const params = style.renderParams || {};
+  const widthRatio = Number(params.widthRatio ?? 0.55);
+  const maxWidth = Number(params.maxWidth ?? 130);
+  const height = Number(params.height ?? 16);
+  const offsetXRatio = Number(params.offsetXRatio ?? 0.55);
+  const offsetY = Number(params.offsetY ?? -18);
+  const ribCount = Number(params.ribCount ?? 3);
+  const width = Math.min(maxWidth, node.width * widthRatio);
+  const x = node.x + node.width * offsetXRatio;
+  const y = node.y + offsetY;
+  group.appendChild(svgElement('rect', {
+    x, y, width, height, rx: 3,
+    fill: style.fillColor,
+    stroke: style.strokeColor,
+    'stroke-width': style.strokeWidth,
+  }));
+  for (let index = 1; index <= ribCount; index += 1) {
+    const lineX = x + width * index / (ribCount + 1);
+    group.appendChild(svgElement('line', {
+      x1: lineX, y1: y + 1, x2: lineX, y2: y + height - 1,
+      stroke: style.labelColor || style.strokeColor,
+      'stroke-width': 1.5,
+    }));
+  }
+  if (style.label) {
+    const label = svgElement('text', {
+      class: 'radiator-label',
+      x: x + width / 2,
+      y: y - 8,
+      fill: style.labelColor || style.strokeColor,
+    });
+    label.textContent = style.label;
+    group.appendChild(label);
   }
-  const label = svgElement('text', {
-    class: 'radiator-label',
-    x: x + width / 2,
-    y: y - 8,
-  });
-  label.textContent = '散热器';
-  group.appendChild(label);
   return group;
 }
 
+function renderLegend() {
+  const legend = document.getElementById('legend');
+  const presentation = getPresentation();
+  const items = [...(presentation.legendItems || [])]
+    .sort((left, right) => left.displayOrder - right.displayOrder);
+
+  const elements = items.map(item => {
+    const wrapper = document.createElement('span');
+    wrapper.className = 'legend-item';
+
+    if (item.itemType === 'edge') {
+      const style = requireStyle(
+        presentation.edgeStyles,
+        item.styleRef,
+        '连接样式',
+      );
+      const sample = document.createElement('i');
+      sample.className = 'legend-line';
+      sample.style.borderColor = style.strokeColor;
+      sample.style.borderTopWidth = `${Math.max(2, Number(style.strokeWidth || 4) / 2)}px`;
+      if (style.dashArray) sample.style.borderTopStyle = 'dashed';
+      wrapper.appendChild(sample);
+    } else if (item.itemType === 'decoration') {
+      const style = requireStyle(
+        presentation.decorationStyles,
+        item.styleRef,
+        '装饰样式',
+      );
+      const sample = document.createElement('i');
+      sample.className = 'legend-chip';
+      sample.style.background = style.fillColor;
+      sample.style.borderColor = style.strokeColor;
+      wrapper.appendChild(sample);
+    } else {
+      const style = requireStyle(
+        presentation.nodeStyles,
+        item.styleRef,
+        '节点样式',
+      );
+      const sample = document.createElement('i');
+      sample.className = 'legend-chip';
+      sample.style.background = style.fillColor;
+      sample.style.borderColor = style.strokeColor;
+      wrapper.appendChild(sample);
+    }
+
+    wrapper.append(document.createTextNode(item.label));
+    return wrapper;
+  });
+
+  legend.replaceChildren(...elements);
+}
+
 function renderTopology() {
   const payload = currentData.layout;
   if (!payload || !payload.layout) throw new Error('拓扑布局资料未记录');
+  const presentation = getPresentation();
 
   const svg = document.getElementById('topology-svg');
   svg.setAttribute('viewBox', `0 0 ${payload.layout.canvasWidth} ${payload.layout.canvasHeight}`);
@@ -329,19 +417,23 @@ function renderTopology() {
     const fromNode = nodeByComponent.get(fromComponent);
     const toNode = nodeByComponent.get(toComponent);
     if (!fromNode || !toNode || fromNode.nodeKey === toNode.nodeKey) return;
-    const style = connectionClass(connection.type);
+    const edgeStyle = requireStyle(
+      presentation.edgeStyles,
+      connection.type,
+      '连接样式',
+    );
     const pair = [fromNode.nodeKey, toNode.nodeKey].sort();
-    const key = `${pair[0]}|${pair[1]}|${style}`;
+    const key = `${pair[0]}|${pair[1]}|${connection.type}`;
     if (!visualConnections.has(key)) {
-      visualConnections.set(key, { fromNode, toNode, style, connection });
+      visualConnections.set(key, { fromNode, toNode, edgeStyle, connection });
     }
   });
 
-  visualConnections.forEach(({ fromNode, toNode, style, connection }) => {
+  visualConnections.forEach(({ fromNode, toNode, edgeStyle, connection }) => {
     const start = edgePoint(fromNode, toNode);
     const end = edgePoint(toNode, fromNode);
-    connectionLayer.appendChild(svgElement('line', {
-      class: `connection ${style}`,
+    const line = svgElement('line', {
+      class: 'connection',
       x1: start.x,
       y1: start.y,
       x2: end.x,
@@ -349,12 +441,19 @@ function renderTopology() {
       'data-type': connection.type,
       'data-from': fromNode.nodeKey,
       'data-to': toNode.nodeKey,
-    }));
+    });
+    applyEdgeStyle(line, edgeStyle);
+    connectionLayer.appendChild(line);
   });
 
   visibleNodes.forEach(node => {
     if (node.decorations && node.decorations.radiator) {
-      decorationLayer.appendChild(createRadiator(node));
+      const radiatorStyle = requireStyle(
+        presentation.decorationStyles,
+        'radiator',
+        '装饰样式',
+      );
+      decorationLayer.appendChild(createRadiator(node, radiatorStyle));
     }
   });
 
@@ -364,6 +463,11 @@ function renderTopology() {
       const components = node.memberKeys.map(key => componentMap.get(key)).filter(Boolean);
       const primary = components[0];
       const title = node.labelOverride || primary.name;
+      const nodeStyle = requireStyle(
+        presentation.nodeStyles,
+        node.styleKey,
+        '节点样式',
+      );
       const group = svgElement('g', {
         class: 'topology-node',
         'data-node-key': node.nodeKey,
@@ -374,19 +478,32 @@ function renderTopology() {
       const fullTitle = svgElement('title');
       fullTitle.textContent = title;
       group.appendChild(fullTitle);
-      group.appendChild(svgElement('rect', {
-        class: node.styleKey,
+      const rect = svgElement('rect', {
+        class: 'node-shape',
         x: node.x,
         y: node.y,
         width: node.width,
         height: node.height,
-        rx: 16,
-      }));
+      });
+      applyNodeStyle(rect, nodeStyle);
+      group.appendChild(rect);
 
       const hasHint = Boolean(node.displayHint);
-      appendNodeText(group, node, 'node-title', title, node.y + node.height * (hasHint ? 0.34 : 0.42));
-      appendNodeText(group, node, 'node-meta', node.displayMeta, node.y + node.height * (hasHint ? 0.60 : 0.72));
-      appendNodeText(group, node, 'node-hint', node.displayHint, node.y + node.height * 0.82);
+      appendNodeText(
+        group, node, 'node-title', title,
+        node.y + node.height * (hasHint ? 0.34 : 0.42),
+        nodeStyle.titleColor || presentation.theme.tokens.textColor,
+      );
+      appendNodeText(
+        group, node, 'node-meta', node.displayMeta,
+        node.y + node.height * (hasHint ? 0.60 : 0.72),
+        nodeStyle.metaColor || presentation.theme.tokens.metaColor,
+      );
+      appendNodeText(
+        group, node, 'node-hint', node.displayHint,
+        node.y + node.height * 0.82,
+        nodeStyle.hintColor || presentation.theme.tokens.hintColor,
+      );
       group.addEventListener('click', () => openModal(node.nodeKey, group));
       group.addEventListener('keydown', event => {
         if (event.key === 'Enter' || event.key === ' ') {
@@ -522,6 +639,7 @@ async function load(mission, at) {
   try {
     currentData = await fetchSnapshot(mission, at);
     renderTopology();
+    renderLegend();
     const query = currentData.query;
     const missionLabel = query.requestedMission || '(最新)';
     document.getElementById('page-subtitle').textContent =
diff --git a/tests/test_guanghan_topology_demo.py b/tests/test_guanghan_topology_demo.py
index 765bf3e..c365392 100644
--- a/tests/test_guanghan_topology_demo.py
+++ b/tests/test_guanghan_topology_demo.py
@@ -41,7 +41,8 @@ class GuanghanTopologySourceTests(unittest.TestCase):
         self.assertNotIn("http://localhost:5000", self.html)
 
     def test_page_uses_database_presentation_payload(self) -> None:
-        self.assertIn("currentData.layout.presentation", self.html)
+        self.assertIn("getPresentation", self.html)
+        self.assertIn("?.presentation", self.html)
         self.assertIn("nodeStyles", self.html)
         self.assertIn("edgeStyles", self.html)
         self.assertIn("decorationStyles", self.html)