diff --git a/frontend/zhihu-hotlist-echarts.html b/frontend/zhihu-hotlist-echarts.html
new file mode 100644
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--- /dev/null
+++ b/frontend/zhihu-hotlist-echarts.html
@@ -0,0 +1,1954 @@
+<!DOCTYPE html>
+<html lang="zh-CN" data-theme="gov_blue_gold">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>知乎热榜主题分类分析大屏</title>
+  <script src="https://cdn.jsdelivr.net/npm/echarts@5/dist/echarts.min.js"></script>
+  <style>
+    :root {
+      --bg: #071b34;
+      --bg-alt: #0e2a4d;
+      --bg-glow: rgba(62, 199, 255, 0.16);
+      --panel: rgba(9, 28, 53, 0.92);
+      --panel-strong: rgba(14, 42, 77, 0.97);
+      --panel-soft: rgba(12, 36, 68, 0.78);
+      --line: rgba(62, 199, 255, 0.2);
+      --line-strong: rgba(216, 179, 106, 0.34);
+      --text: #eaf4ff;
+      --muted: #8faecc;
+      --accent: #d8b36a;
+      --accent-2: #3ec7ff;
+      --accent-3: #5b8cff;
+      --success: #74c69d;
+      --danger: #e05a47;
+      --warning: #d79a43;
+      --shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
+      --table-header: rgba(8, 25, 48, 0.98);
+      --panel-radius: 18px;
+      --font-main: "Segoe UI Variable Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
+      --font-number: "Bahnschrift", "DIN Alternate", "Segoe UI", sans-serif;
+    }
+
+    html[data-theme="gov_blue_gold"] {
+      --bg: #071b34;
+      --bg-alt: #0e2a4d;
+      --bg-glow: rgba(62, 199, 255, 0.18);
+      --panel: rgba(9, 28, 53, 0.92);
+      --panel-strong: rgba(14, 42, 77, 0.97);
+      --panel-soft: rgba(12, 36, 68, 0.78);
+      --line: rgba(62, 199, 255, 0.2);
+      --line-strong: rgba(216, 179, 106, 0.34);
+      --text: #eaf4ff;
+      --muted: #8faecc;
+      --accent: #d8b36a;
+      --accent-2: #3ec7ff;
+      --accent-3: #5b8cff;
+      --success: #74c69d;
+      --danger: #e05a47;
+      --warning: #d79a43;
+      --table-header: rgba(8, 25, 48, 0.98);
+    }
+
+    html[data-theme="tech_cyan_blue"] {
+      --bg: #061a2d;
+      --bg-alt: #0b2844;
+      --bg-glow: rgba(34, 211, 238, 0.2);
+      --panel: rgba(6, 26, 45, 0.92);
+      --panel-strong: rgba(11, 40, 68, 0.97);
+      --panel-soft: rgba(9, 34, 58, 0.82);
+      --line: rgba(34, 211, 238, 0.23);
+      --line-strong: rgba(91, 140, 255, 0.34);
+      --text: #e6f7ff;
+      --muted: #93b7d8;
+      --accent: #22d3ee;
+      --accent-2: #5b8cff;
+      --accent-3: #99f6ff;
+      --success: #5eead4;
+      --danger: #fb7185;
+      --warning: #60a5fa;
+      --table-header: rgba(4, 21, 38, 0.98);
+    }
+
+    html[data-theme="industry_ink_green"] {
+      --bg: #0a1d1d;
+      --bg-alt: #113536;
+      --bg-glow: rgba(116, 198, 157, 0.18);
+      --panel: rgba(10, 29, 29, 0.92);
+      --panel-strong: rgba(17, 53, 54, 0.97);
+      --panel-soft: rgba(14, 45, 45, 0.82);
+      --line: rgba(116, 198, 157, 0.22);
+      --line-strong: rgba(214, 181, 110, 0.34);
+      --text: #edfdf7;
+      --muted: #99bdb7;
+      --accent: #d6b56e;
+      --accent-2: #74c69d;
+      --accent-3: #34d399;
+      --success: #74c69d;
+      --danger: #f87171;
+      --warning: #d6b56e;
+      --table-header: rgba(9, 26, 26, 0.98);
+    }
+
+    html[data-theme="meeting_red_gold"] {
+      --bg: #2c1111;
+      --bg-alt: #4b1e1e;
+      --bg-glow: rgba(224, 90, 71, 0.16);
+      --panel: rgba(44, 17, 17, 0.92);
+      --panel-strong: rgba(75, 30, 30, 0.97);
+      --panel-soft: rgba(58, 23, 23, 0.82);
+      --line: rgba(224, 90, 71, 0.22);
+      --line-strong: rgba(215, 154, 67, 0.36);
+      --text: #fff0ea;
+      --muted: #d8b4ad;
+      --accent: #d79a43;
+      --accent-2: #e05a47;
+      --accent-3: #f59e0b;
+      --success: #fca5a5;
+      --danger: #fb7185;
+      --warning: #d79a43;
+      --table-header: rgba(37, 14, 14, 0.98);
+    }
+
+    * {
+      box-sizing: border-box;
+    }
+
+    html,
+    body {
+      margin: 0;
+      height: 100%;
+    }
+
+    body {
+      overflow: hidden;
+      color: var(--text);
+      font-family: var(--font-main);
+      background:
+        radial-gradient(circle at 18% 16%, var(--bg-glow), transparent 24%),
+        radial-gradient(circle at 82% 12%, rgba(216, 179, 106, 0.12), transparent 22%),
+        linear-gradient(135deg, var(--bg) 0%, var(--bg-alt) 52%, var(--bg) 100%);
+      transition: background 0.35s ease, color 0.35s ease;
+    }
+
+    body::before,
+    body::after {
+      content: "";
+      position: fixed;
+      inset: 0;
+      pointer-events: none;
+      z-index: 0;
+    }
+
+    body::before {
+      background-image:
+        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
+        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
+      background-size: 36px 36px;
+      mask-image: linear-gradient(180deg, rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0.18));
+    }
+
+    body::after {
+      background:
+        linear-gradient(90deg, transparent 0, rgba(255, 255, 255, 0.03) 50%, transparent 100%),
+        linear-gradient(180deg, transparent 0, rgba(255, 255, 255, 0.03) 50%, transparent 100%);
+      mix-blend-mode: screen;
+      opacity: 0.35;
+    }
+
+    button,
+    textarea {
+      font: inherit;
+    }
+
+    button {
+      cursor: pointer;
+    }
+
+    .screen {
+      position: relative;
+      z-index: 1;
+      height: 100vh;
+      padding: 20px 24px 14px;
+      display: grid;
+      grid-template-rows: 88px 120px 380px minmax(0, 1fr) 44px;
+      gap: 14px;
+    }
+
+    .panel,
+    .screen-header,
+    .screen-footer,
+    .kpi-card,
+    .data-drawer {
+      position: relative;
+      overflow: hidden;
+      background: linear-gradient(180deg, var(--panel-strong) 0%, var(--panel) 100%);
+      border: 1px solid var(--line);
+      box-shadow: var(--shadow);
+      transition: background 0.35s ease, border-color 0.35s ease, color 0.35s ease;
+    }
+
+    .panel::before,
+    .screen-header::before,
+    .screen-footer::before,
+    .kpi-card::before,
+    .data-drawer::before {
+      content: "";
+      position: absolute;
+      inset: 0;
+      border: 1px solid rgba(255, 255, 255, 0.04);
+      pointer-events: none;
+    }
+
+    .panel::after,
+    .screen-header::after,
+    .screen-footer::after,
+    .kpi-card::after,
+    .data-drawer::after {
+      content: "";
+      position: absolute;
+      inset: 12px;
+      border: 1px solid rgba(255, 255, 255, 0.03);
+      clip-path: polygon(10px 0, calc(100% - 10px) 0, 100% 10px, 100% calc(100% - 10px), calc(100% - 10px) 100%, 10px 100%, 0 calc(100% - 10px), 0 10px);
+      pointer-events: none;
+    }
+
+    .screen-header {
+      display: grid;
+      grid-template-columns: minmax(0, 1.5fr) minmax(280px, 1fr);
+      gap: 18px;
+      align-items: center;
+      padding: 0 24px;
+      border-radius: 18px;
+    }
+
+    .header-main {
+      min-width: 0;
+    }
+
+    .header-eyebrow {
+      display: inline-flex;
+      align-items: center;
+      gap: 10px;
+      padding: 6px 12px;
+      border-radius: 999px;
+      font-size: 12px;
+      letter-spacing: 0.18em;
+      color: var(--accent);
+      background: rgba(255, 255, 255, 0.04);
+      text-transform: uppercase;
+    }
+
+    .header-eyebrow::before {
+      content: "";
+      width: 8px;
+      height: 8px;
+      border-radius: 50%;
+      background: var(--accent-2);
+      box-shadow: 0 0 10px rgba(62, 199, 255, 0.4);
+    }
+
+    .header-title {
+      margin: 10px 0 6px;
+      font-size: 34px;
+      line-height: 1.1;
+      letter-spacing: 0.02em;
+      font-weight: 700;
+    }
+
+    .header-subtitle {
+      margin: 0;
+      color: var(--muted);
+      font-size: 14px;
+      white-space: nowrap;
+      overflow: hidden;
+      text-overflow: ellipsis;
+    }
+
+    .header-side {
+      display: grid;
+      justify-items: end;
+      gap: 12px;
+      min-width: 0;
+    }
+
+    .header-meta {
+      display: flex;
+      align-items: center;
+      justify-content: flex-end;
+      flex-wrap: wrap;
+      gap: 10px 18px;
+      font-size: 12px;
+      color: var(--muted);
+    }
+
+    .header-meta strong {
+      color: var(--text);
+      font-weight: 600;
+    }
+
+    .theme-switcher {
+      display: flex;
+      flex-wrap: wrap;
+      justify-content: flex-end;
+      gap: 10px;
+    }
+
+    .theme-btn,
+    .drawer-toggle,
+    .action-btn {
+      border: 1px solid var(--line);
+      border-radius: 999px;
+      color: var(--text);
+      background: rgba(255, 255, 255, 0.04);
+      transition: transform 0.2s ease, background 0.25s ease, border-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
+    }
+
+    .theme-btn {
+      padding: 8px 12px;
+      font-size: 12px;
+      min-width: 78px;
+    }
+
+    .theme-btn.active {
+      color: #05121d;
+      border-color: transparent;
+      background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
+      box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
+    }
+
+    .drawer-toggle,
+    .action-btn {
+      padding: 10px 18px;
+      font-size: 13px;
+      font-weight: 600;
+    }
+
+    .drawer-toggle.primary,
+    .action-btn.primary {
+      color: #05121d;
+      border-color: transparent;
+      background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
+      box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
+    }
+
+    .action-btn.secondary {
+      background: rgba(255, 255, 255, 0.05);
+    }
+
+    .action-btn.ghost {
+      background: transparent;
+    }
+
+    .theme-btn:hover,
+    .drawer-toggle:hover,
+    .action-btn:hover {
+      transform: translateY(-1px);
+    }
+
+    .theme-btn:focus-visible,
+    .drawer-toggle:focus-visible,
+    .action-btn:focus-visible,
+    textarea:focus-visible {
+      outline: 2px solid var(--accent-2);
+      outline-offset: 2px;
+    }
+
+    .kpi-row {
+      display: grid;
+      grid-template-columns: repeat(5, minmax(0, 1fr));
+      gap: 14px;
+    }
+
+    .kpi-card {
+      border-radius: 16px;
+      padding: 18px 20px;
+      display: grid;
+      gap: 8px;
+      min-width: 0;
+    }
+
+    .kpi-label {
+      font-size: 12px;
+      color: var(--muted);
+      letter-spacing: 0.14em;
+      text-transform: uppercase;
+    }
+
+    .kpi-value {
+      font-family: var(--font-number);
+      font-size: clamp(24px, 2.3vw, 34px);
+      line-height: 1.15;
+      font-weight: 700;
+      color: var(--text);
+      white-space: nowrap;
+      overflow: hidden;
+      text-overflow: ellipsis;
+    }
+
+    .kpi-value.long {
+      font-size: clamp(18px, 1.45vw, 24px);
+    }
+
+    .kpi-sub {
+      font-size: 12px;
+      color: var(--muted);
+      white-space: nowrap;
+      overflow: hidden;
+      text-overflow: ellipsis;
+    }
+
+    .kpi-status-normal { color: var(--success); }
+    .kpi-status-warning { color: var(--warning); }
+    .kpi-status-danger { color: var(--danger); }
+
+    .main-grid {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 360px;
+      gap: 14px;
+      min-height: 0;
+    }
+
+    .panel {
+      border-radius: var(--panel-radius);
+      padding: 18px 18px 16px;
+      min-height: 0;
+    }
+
+    .panel-head {
+      display: flex;
+      justify-content: space-between;
+      align-items: flex-end;
+      gap: 12px;
+      margin-bottom: 12px;
+    }
+
+    .panel-title-wrap {
+      min-width: 0;
+    }
+
+    .panel-title {
+      margin: 0;
+      font-size: 20px;
+      font-weight: 700;
+      letter-spacing: 0.03em;
+    }
+
+    .panel-desc {
+      margin: 6px 0 0;
+      color: var(--muted);
+      font-size: 12px;
+      line-height: 1.5;
+    }
+
+    .chart-box {
+      height: calc(100% - 58px);
+      min-height: 280px;
+      width: 100%;
+    }
+
+    .insights-panel {
+      display: grid;
+      grid-template-rows: auto minmax(0, 1fr);
+      gap: 12px;
+    }
+
+    .insights-body {
+      display: grid;
+      grid-template-rows: auto auto 1fr;
+      gap: 12px;
+      min-height: 0;
+    }
+
+    .insight-section {
+      border: 1px solid rgba(255, 255, 255, 0.06);
+      background: rgba(255, 255, 255, 0.03);
+      border-radius: 14px;
+      padding: 14px;
+    }
+
+    .insight-section h3 {
+      margin: 0 0 10px;
+      font-size: 14px;
+      letter-spacing: 0.08em;
+      color: var(--accent);
+    }
+
+    .insight-list,
+    .conclusion-list,
+    .category-pills {
+      display: grid;
+      gap: 10px;
+    }
+
+    .insight-item {
+      display: grid;
+      grid-template-columns: 36px minmax(0, 1fr);
+      gap: 12px;
+      align-items: start;
+    }
+
+    .insight-rank {
+      width: 36px;
+      height: 36px;
+      display: grid;
+      place-items: center;
+      border-radius: 12px;
+      font-family: var(--font-number);
+      font-size: 16px;
+      font-weight: 700;
+      border: 1px solid rgba(255, 255, 255, 0.12);
+      background: rgba(255, 255, 255, 0.06);
+      color: var(--text);
+    }
+
+    .medal-gold { color: #ffe5a3; border-color: rgba(255, 215, 128, 0.4); background: rgba(255, 215, 128, 0.08); }
+    .medal-silver { color: #dbe7f6; border-color: rgba(207, 219, 232, 0.35); background: rgba(207, 219, 232, 0.08); }
+    .medal-bronze { color: #e6c49a; border-color: rgba(201, 145, 89, 0.35); background: rgba(201, 145, 89, 0.08); }
+
+    .insight-title {
+      font-size: 14px;
+      line-height: 1.5;
+      font-weight: 600;
+      white-space: nowrap;
+      overflow: hidden;
+      text-overflow: ellipsis;
+    }
+
+    .insight-meta {
+      margin-top: 4px;
+      color: var(--muted);
+      font-size: 12px;
+    }
+
+    .conclusion-item {
+      padding-left: 14px;
+      position: relative;
+      font-size: 13px;
+      color: var(--text);
+      line-height: 1.65;
+    }
+
+    .conclusion-item::before {
+      content: "";
+      position: absolute;
+      left: 0;
+      top: 8px;
+      width: 6px;
+      height: 6px;
+      border-radius: 50%;
+      background: var(--accent-2);
+      box-shadow: 0 0 8px rgba(62, 199, 255, 0.35);
+    }
+
+    .insight-empty,
+    .chart-empty,
+    .table-empty {
+      display: grid;
+      place-items: center;
+      text-align: center;
+      color: var(--muted);
+      border-radius: 14px;
+      border: 1px dashed rgba(255, 255, 255, 0.14);
+      background: rgba(255, 255, 255, 0.03);
+      min-height: 120px;
+      padding: 16px;
+    }
+
+    .table-panel {
+      display: grid;
+      grid-template-rows: auto auto minmax(0, 1fr);
+      gap: 12px;
+      min-height: 0;
+    }
+
+    .category-pills {
+      display: flex;
+      flex-wrap: wrap;
+      gap: 8px;
+    }
+
+    .category-pill,
+    .category-tag {
+      display: inline-flex;
+      align-items: center;
+      gap: 8px;
+      min-width: 0;
+      border-radius: 999px;
+      padding: 6px 12px;
+      font-size: 12px;
+      font-weight: 600;
+      color: var(--text);
+      background: rgba(255, 255, 255, 0.06);
+      border: 1px solid rgba(255, 255, 255, 0.08);
+    }
+
+    .swatch {
+      width: 10px;
+      height: 10px;
+      border-radius: 50%;
+      flex: 0 0 auto;
+      box-shadow: 0 0 10px currentColor;
+    }
+
+    .table-wrap {
+      min-height: 0;
+      overflow: auto;
+      border-radius: 14px;
+      border: 1px solid rgba(255, 255, 255, 0.08);
+      background: rgba(2, 10, 22, 0.24);
+    }
+
+    table {
+      width: 100%;
+      min-width: 1020px;
+      border-collapse: collapse;
+    }
+
+    thead th {
+      position: sticky;
+      top: 0;
+      z-index: 2;
+      padding: 14px 16px;
+      text-align: left;
+      font-size: 12px;
+      color: var(--muted);
+      background: var(--table-header);
+      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
+      letter-spacing: 0.1em;
+      text-transform: uppercase;
+      white-space: nowrap;
+    }
+
+    tbody td {
+      padding: 14px 16px;
+      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
+      font-size: 13px;
+      vertical-align: top;
+    }
+
+    tbody tr:hover {
+      background: rgba(255, 255, 255, 0.03);
+    }
+
+    tbody tr.top-1 { background: rgba(255, 215, 128, 0.06); }
+    tbody tr.top-2 { background: rgba(207, 219, 232, 0.05); }
+    tbody tr.top-3 { background: rgba(201, 145, 89, 0.05); }
+
+    .rank-badge {
+      display: inline-flex;
+      align-items: center;
+      justify-content: center;
+      min-width: 40px;
+      height: 30px;
+      padding: 0 12px;
+      border-radius: 999px;
+      font-family: var(--font-number);
+      font-size: 14px;
+      font-weight: 700;
+      border: 1px solid rgba(255, 255, 255, 0.1);
+      background: rgba(255, 255, 255, 0.05);
+    }
+
+    .topic-cell {
+      display: grid;
+      gap: 6px;
+      min-width: 0;
+    }
+
+    .topic-title {
+      font-size: 14px;
+      font-weight: 600;
+      line-height: 1.55;
+      display: -webkit-box;
+      -webkit-line-clamp: 2;
+      -webkit-box-orient: vertical;
+      overflow: hidden;
+    }
+
+    .topic-url {
+      color: var(--accent-2);
+      font-size: 12px;
+      white-space: nowrap;
+      overflow: hidden;
+      text-overflow: ellipsis;
+      text-decoration: none;
+      display: inline-block;
+      max-width: 100%;
+    }
+
+    .topic-url:hover {
+      text-decoration: underline;
+    }
+
+    .heat-value {
+      font-family: var(--font-number);
+      font-size: 14px;
+      font-weight: 700;
+      color: var(--accent);
+      white-space: nowrap;
+    }
+
+    .muted {
+      font-size: 12px;
+      color: var(--muted);
+    }
+
+    .screen-footer {
+      display: grid;
+      grid-template-columns: minmax(0, 1fr) auto;
+      align-items: center;
+      gap: 14px;
+      padding: 0 18px;
+      border-radius: 14px;
+      font-size: 12px;
+      color: var(--muted);
+    }
+
+    .footer-meta {
+      display: flex;
+      gap: 18px;
+      flex-wrap: wrap;
+      justify-content: flex-end;
+    }
+
+    .drawer-backdrop {
+      position: fixed;
+      inset: 0;
+      z-index: 10;
+      background: rgba(2, 8, 18, 0.38);
+      opacity: 0;
+      visibility: hidden;
+      transition: opacity 0.25s ease, visibility 0.25s ease;
+    }
+
+    .drawer-backdrop.open {
+      opacity: 1;
+      visibility: visible;
+    }
+
+    .data-drawer {
+      position: fixed;
+      left: 16px;
+      right: 16px;
+      bottom: 16px;
+      height: min(420px, 36vh);
+      z-index: 11;
+      border-radius: 20px;
+      transform: translateY(calc(100% + 24px));
+      transition: transform 0.28s ease;
+      padding: 18px;
+      display: grid;
+      grid-template-rows: auto 1fr auto auto;
+      gap: 12px;
+    }
+
+    .data-drawer.open {
+      transform: translateY(0);
+    }
+
+    .drawer-head {
+      display: flex;
+      justify-content: space-between;
+      align-items: center;
+      gap: 14px;
+    }
+
+    .drawer-title {
+      margin: 0;
+      font-size: 18px;
+      font-weight: 700;
+    }
+
+    .drawer-note {
+      margin: 4px 0 0;
+      font-size: 12px;
+      color: var(--muted);
+    }
+
+    .drawer-close {
+      width: 36px;
+      height: 36px;
+      border-radius: 50%;
+      border: 1px solid var(--line);
+      background: rgba(255, 255, 255, 0.04);
+      color: var(--text);
+      font-size: 16px;
+    }
+
+    textarea {
+      width: 100%;
+      height: 100%;
+      min-height: 0;
+      resize: none;
+      border: 1px solid rgba(255, 255, 255, 0.12);
+      border-radius: 14px;
+      background: rgba(2, 12, 24, 0.6);
+      color: var(--text);
+      padding: 14px 16px;
+      font: 13px/1.6 "Consolas", "Cascadia Code", "SFMono-Regular", monospace;
+    }
+
+    .drawer-actions {
+      display: flex;
+      flex-wrap: wrap;
+      gap: 10px;
+    }
+
+    .feedback {
+      padding: 12px 14px;
+      border-radius: 14px;
+      font-size: 13px;
+      color: var(--success);
+      background: rgba(116, 198, 157, 0.09);
+      border: 1px solid rgba(116, 198, 157, 0.2);
+    }
+
+    .feedback.error {
+      color: #ffb4ab;
+      background: rgba(224, 90, 71, 0.1);
+      border-color: rgba(224, 90, 71, 0.22);
+    }
+
+    @media (max-width: 1600px) {
+      .screen {
+        padding: 16px;
+        gap: 12px;
+      }
+
+      .screen-header {
+        grid-template-columns: 1fr;
+        align-items: start;
+        padding: 18px;
+      }
+
+      .header-side {
+        justify-items: start;
+      }
+
+      .theme-switcher,
+      .header-meta {
+        justify-content: flex-start;
+      }
+
+      .kpi-row,
+      .main-grid {
+        grid-template-columns: repeat(2, minmax(0, 1fr));
+      }
+
+      .insights-panel {
+        grid-column: 1 / -1;
+      }
+    }
+
+    @media (max-width: 1280px), (max-height: 900px) {
+      body {
+        height: auto;
+        min-height: 100%;
+        overflow: auto;
+      }
+
+      .screen {
+        height: auto;
+        min-height: 1080px;
+        grid-template-rows: auto auto auto auto auto;
+      }
+
+      .kpi-row {
+        grid-template-columns: repeat(2, minmax(0, 1fr));
+      }
+
+      .main-grid {
+        grid-template-columns: 1fr;
+      }
+
+      .chart-box {
+        height: 320px;
+      }
+
+      .data-drawer {
+        left: 12px;
+        right: 12px;
+        height: min(500px, 56vh);
+      }
+    }
+
+    @media (max-width: 720px) {
+      .screen {
+        padding: 12px;
+      }
+
+      .kpi-row {
+        grid-template-columns: 1fr;
+      }
+
+      .header-title {
+        font-size: 28px;
+      }
+
+      .data-drawer {
+        left: 8px;
+        right: 8px;
+        bottom: 8px;
+      }
+
+      .drawer-actions,
+      .theme-switcher,
+      .footer-meta,
+      .header-meta {
+        gap: 8px;
+      }
+    }
+  </style>
+</head>
+<body>
+  <div class="screen">
+    <header class="screen-header">
+      <div class="header-main">
+        <div class="header-eyebrow">Zhihu Hotlist Big Screen</div>
+        <h1 class="header-title">知乎热榜主题分类分析大屏</h1>
+        <p class="header-subtitle">基于知乎热榜快照，按主题分类汇总热度与互动指标，适配国企汇报场景的一页式监测大屏。</p>
+      </div>
+      <div class="header-side">
+        <div class="header-meta">
+          <span>当前时间 <strong id="currentTime">-</strong></span>
+          <span>数据源 <strong id="snapshotId">demo-snapshot</strong></span>
+          <span>生成时间 <strong id="generatedAt">-</strong></span>
+        </div>
+        <div class="theme-switcher" id="themeSwitcher">
+          <button class="theme-btn active" type="button" data-theme="gov_blue_gold">政务蓝金</button>
+          <button class="theme-btn" type="button" data-theme="tech_cyan_blue">科技青蓝</button>
+          <button class="theme-btn" type="button" data-theme="industry_ink_green">工业墨绿</button>
+          <button class="theme-btn" type="button" data-theme="meeting_red_gold">会议红金</button>
+          <button class="drawer-toggle primary" type="button" id="drawerToggle">数据输入</button>
+        </div>
+      </div>
+    </header>
+
+    <section class="kpi-row" id="summaryGrid"></section>
+
+    <section class="main-grid">
+      <article class="panel chart-panel">
+        <div class="panel-head">
+          <div class="panel-title-wrap">
+            <h2 class="panel-title">分类条目数量对比</h2>
+            <p class="panel-desc">比较各主题在当前热榜中的条目数量，识别内容分布重心。</p>
+          </div>
+        </div>
+        <div class="chart-box" id="categoryCountChart"></div>
+      </article>
+
+      <article class="panel chart-panel">
+        <div class="panel-head">
+          <div class="panel-title-wrap">
+            <h2 class="panel-title">分类总热度对比</h2>
+            <p class="panel-desc">按主题汇总热度，突出最高热度类目，辅助快速研判舆论集中点。</p>
+          </div>
+        </div>
+        <div class="chart-box" id="categoryHeatChart"></div>
+      </article>
+
+      <aside class="panel insights-panel">
+        <div class="panel-head">
+          <div class="panel-title-wrap">
+            <h2 class="panel-title">重点摘要卡</h2>
+            <p class="panel-desc">按热度筛出 Top3 热点，并输出当前快照的模板化结论。</p>
+          </div>
+        </div>
+        <div class="insights-body">
+          <section class="insight-section">
+            <h3>TOP3 热点话题</h3>
+            <div class="insight-list" id="insightTopList"></div>
+          </section>
+          <section class="insight-section">
+            <h3>研判结论</h3>
+            <div class="conclusion-list" id="insightConclusionList"></div>
+          </section>
+          <section class="insight-section">
+            <h3>提示说明</h3>
+            <div class="conclusion-list">
+              <div class="conclusion-item">默认使用示例数据，支持直接粘贴 `zhihu_hotlist_report` 的 `echarts` JSON。</div>
+              <div class="conclusion-item">输入抽屉为覆盖层，不挤压大屏布局；适合汇报时快速切换数据快照。</div>
+              <div class="conclusion-item">类别颜色在图表、摘要、表格标签之间保持一致。</div>
+            </div>
+          </section>
+        </div>
+      </aside>
+    </section>
+
+    <section class="panel table-panel">
+      <div class="panel-head">
+        <div class="panel-title-wrap">
+          <h2 class="panel-title">热榜明细表</h2>
+          <p class="panel-desc">逐条查看排名、标题、类别、热度以及互动指标，支撑汇报落到具体热点。</p>
+        </div>
+      </div>
+      <div class="category-pills" id="categoryPills"></div>
+      <div class="table-wrap" id="tableWrap"></div>
+    </section>
+
+    <footer class="screen-footer">
+      <div id="footerNote">热度来自热榜展示值；互动指标来自问题页抓取的快照（若为空则显示 0）。</div>
+      <div class="footer-meta">
+        <span>生成时间 <strong id="footerGeneratedAt">-</strong></span>
+        <span>当前皮肤 <strong id="footerSkin">政务蓝金</strong></span>
+      </div>
+    </footer>
+  </div>
+
+  <div class="drawer-backdrop" id="drawerBackdrop"></div>
+  <section class="data-drawer" id="dataDrawer" aria-hidden="true">
+    <div class="drawer-head">
+      <div>
+        <h2 class="drawer-title">数据输入</h2>
+        <p class="drawer-note">支持粘贴 skill 输出的 payload，若为外层对象会自动提取 `echarts` 字段。按 Esc 关闭，Ctrl+Enter 可直接渲染。</p>
+      </div>
+      <button class="drawer-close" type="button" id="drawerClose" aria-label="关闭输入抽屉">×</button>
+    </div>
+    <textarea id="payloadInput" spellcheck="false"></textarea>
+    <div class="drawer-actions">
+      <button class="action-btn primary" type="button" id="renderBtn">渲染看板</button>
+      <button class="action-btn secondary" type="button" id="sampleBtn">载入示例</button>
+      <button class="action-btn ghost" type="button" id="formatBtn">格式化 JSON</button>
+    </div>
+    <div class="feedback" id="feedback">已加载示例数据。</div>
+  </section>
+
+  <script>
+    const defaultPayload = {
+      snapshot_id: "demo-snapshot-20260328",
+      generated_at_ms: 1774628400000,
+      categories: [
+        { category_code: "society", category_label: "社会", item_count: 3, total_heat: 138000, avg_heat: 46000 },
+        { category_code: "entertainment", category_label: "娱乐", item_count: 2, total_heat: 116000, avg_heat: 58000 },
+        { category_code: "technology", category_label: "科技", item_count: 2, total_heat: 103000, avg_heat: 51500 },
+        { category_code: "sports", category_label: "体育", item_count: 2, total_heat: 93000, avg_heat: 46500 },
+        { category_code: "military", category_label: "军事", item_count: 1, total_heat: 42000, avg_heat: 42000 },
+        { category_code: "finance", category_label: "财经", item_count: 1, total_heat: 39000, avg_heat: 39000 }
+      ],
+      table: [
+        {
+          rank: 1,
+          title: "明星新电影票房破纪录，娱乐板块热度再度走高",
+          url: "https://www.zhihu.com/question/100001",
+          category_code: "entertainment",
+          category_label: "娱乐",
+          heat_text: "6.8 万热度",
+          heat_value: 68000,
+          reply_count: 132,
+          upvote_count: 865,
+          favorite_count: 215,
+          heart_count: 96
+        },
+        {
+          rank: 2,
+          title: "AI 智能体落地企业办公场景，科技话题持续升温",
+          url: "https://www.zhihu.com/question/100002",
+          category_code: "technology",
+          category_label: "科技",
+          heat_text: "6.2 万热度",
+          heat_value: 62000,
+          reply_count: 110,
+          upvote_count: 790,
+          favorite_count: 188,
+          heart_count: 75
+        },
+        {
+          rank: 3,
+          title: "城市更新与民生配套建设引发社会讨论",
+          url: "https://www.zhihu.com/question/100003",
+          category_code: "society",
+          category_label: "社会",
+          heat_text: "5.5 万热度",
+          heat_value: 55000,
+          reply_count: 96,
+          upvote_count: 602,
+          favorite_count: 144,
+          heart_count: 52
+        },
+        {
+          rank: 4,
+          title: "国足新周期备战方案公布，体育板块关注度回升",
+          url: "https://www.zhihu.com/question/100004",
+          category_code: "sports",
+          category_label: "体育",
+          heat_text: "5.2 万热度",
+          heat_value: 52000,
+          reply_count: 84,
+          upvote_count: 573,
+          favorite_count: 116,
+          heart_count: 49
+        },
+        {
+          rank: 5,
+          title: "航母编队演训画面公布，军事类目成为高热讨论点",
+          url: "https://www.zhihu.com/question/100005",
+          category_code: "military",
+          category_label: "军事",
+          heat_text: "4.2 万热度",
+          heat_value: 42000,
+          reply_count: 75,
+          upvote_count: 418,
+          favorite_count: 103,
+          heart_count: 44
+        },
+        {
+          rank: 6,
+          title: "居民消费新政发布后，财经与社会议题出现联动",
+          url: "https://www.zhihu.com/question/100006",
+          category_code: "finance",
+          category_label: "财经",
+          heat_text: "3.9 万热度",
+          heat_value: 39000,
+          reply_count: 68,
+          upvote_count: 366,
+          favorite_count: 91,
+          heart_count: 28
+        },
+        {
+          rank: 7,
+          title: "短剧与综艺互动模式创新，娱乐内容二次发酵",
+          url: "https://www.zhihu.com/question/100007",
+          category_code: "entertainment",
+          category_label: "娱乐",
+          heat_text: "4.8 万热度",
+          heat_value: 48000,
+          reply_count: 62,
+          upvote_count: 312,
+          favorite_count: 74,
+          heart_count: 26
+        },
+        {
+          rank: 8,
+          title: "具身智能新进展吸引开发者讨论，科技类目热度稳定",
+          url: "https://www.zhihu.com/question/100008",
+          category_code: "technology",
+          category_label: "科技",
+          heat_text: "4.1 万热度",
+          heat_value: 41000,
+          reply_count: 55,
+          upvote_count: 295,
+          favorite_count: 67,
+          heart_count: 25
+        },
+        {
+          rank: 9,
+          title: "大型赛事带动城市消费，体育与社会话题并行上涨",
+          url: "https://www.zhihu.com/question/100009",
+          category_code: "sports",
+          category_label: "体育",
+          heat_text: "4.1 万热度",
+          heat_value: 41000,
+          reply_count: 49,
+          upvote_count: 248,
+          favorite_count: 61,
+          heart_count: 19
+        },
+        {
+          rank: 10,
+          title: "基层治理数字化试点扩围，社会治理议题升温",
+          url: "https://www.zhihu.com/question/100010",
+          category_code: "society",
+          category_label: "社会",
+          heat_text: "4.4 万热度",
+          heat_value: 44000,
+          reply_count: 58,
+          upvote_count: 301,
+          favorite_count: 77,
+          heart_count: 22
+        },
+        {
+          rank: 11,
+          title: "就业与职业转型讨论走热，社会类目保持高频曝光",
+          url: "https://www.zhihu.com/question/100011",
+          category_code: "society",
+          category_label: "社会",
+          heat_text: "3.9 万热度",
+          heat_value: 39000,
+          reply_count: 46,
+          upvote_count: 229,
+          favorite_count: 54,
+          heart_count: 17
+        }
+      ]
+    }
+
+    const themeMeta = {
+      gov_blue_gold: {
+        label: "政务蓝金",
+        palette: ["#3EC7FF", "#D8B36A", "#5B8CFF", "#74C69D", "#E8C16E", "#6EE7F9", "#9CC3FF", "#FDBA74", "#FCA5A5", "#A7F3D0"]
+      },
+      tech_cyan_blue: {
+        label: "科技青蓝",
+        palette: ["#22D3EE", "#5B8CFF", "#99F6FF", "#60A5FA", "#2DD4BF", "#A5F3FC", "#93C5FD", "#C4B5FD", "#F0ABFC", "#67E8F9"]
+      },
+      industry_ink_green: {
+        label: "工业墨绿",
+        palette: ["#74C69D", "#D6B56E", "#34D399", "#6EE7B7", "#FCD34D", "#A7F3D0", "#86EFAC", "#FBBF24", "#FDBA74", "#EAB308"]
+      },
+      meeting_red_gold: {
+        label: "会议红金",
+        palette: ["#E05A47", "#D79A43", "#FB7185", "#F59E0B", "#FCA5A5", "#FDBA74", "#FCD34D", "#F87171", "#FBBF24", "#F9A8D4"]
+      }
+    }
+
+    const state = {
+      payload: null,
+      lastSuccessfulPayload: null,
+      theme: "gov_blue_gold",
+      drawerOpen: false,
+      categoryColorMap: {},
+      lastRenderedAtMs: 0,
+      status: "正常"
+    }
+
+    const payloadInput = document.getElementById("payloadInput")
+    const feedback = document.getElementById("feedback")
+    const summaryGrid = document.getElementById("summaryGrid")
+    const snapshotIdEl = document.getElementById("snapshotId")
+    const generatedAtEl = document.getElementById("generatedAt")
+    const currentTimeEl = document.getElementById("currentTime")
+    const footerGeneratedAtEl = document.getElementById("footerGeneratedAt")
+    const footerSkinEl = document.getElementById("footerSkin")
+    const categoryPills = document.getElementById("categoryPills")
+    const insightTopList = document.getElementById("insightTopList")
+    const insightConclusionList = document.getElementById("insightConclusionList")
+    const tableWrap = document.getElementById("tableWrap")
+    const drawerToggle = document.getElementById("drawerToggle")
+    const drawerClose = document.getElementById("drawerClose")
+    const drawerBackdrop = document.getElementById("drawerBackdrop")
+    const dataDrawer = document.getElementById("dataDrawer")
+    const themeSwitcher = document.getElementById("themeSwitcher")
+
+    const hexagonSymbol = "path://M12 2 L36 2 L46 18 L36 34 L12 34 L2 18 Z"
+
+    let countChart = null
+    let heatChart = null
+
+    function escapeHtml(value) {
+      return String(value)
+        .replaceAll("&", "&amp;")
+        .replaceAll("<", "&lt;")
+        .replaceAll(">", "&gt;")
+        .replaceAll('"', "&quot;")
+        .replaceAll("'", "&#39;")
+    }
+
+    function formatNumber(value) {
+      return Number(value || 0).toLocaleString("zh-CN")
+    }
+
+    function formatTime(timestamp) {
+      if (!timestamp) return "-"
+      const date = new Date(timestamp)
+      if (Number.isNaN(date.getTime())) return "-"
+      return date.toLocaleString("zh-CN", { hour12: false })
+    }
+
+    function formatClock(timestamp) {
+      if (!timestamp) return "-"
+      const date = new Date(timestamp)
+      if (Number.isNaN(date.getTime())) return "-"
+      return date.toLocaleTimeString("zh-CN", { hour12: false })
+    }
+
+    function formatCompactHeat(value) {
+      const num = Number(value || 0)
+      if (num >= 10000) {
+        return `${(Math.round(num / 100) / 100).toFixed(2).replace(/\.00$/, "").replace(/(\.\d)0$/, "$1")} 万`
+      }
+      return formatNumber(num)
+    }
+
+    function truncateLabel(value, maxLength) {
+      const text = String(value || "")
+      if (text.length <= maxLength) return text
+      return `${text.slice(0, Math.max(0, maxLength - 1))}…`
+    }
+
+    function normalizeNumber(value) {
+      const num = Number(value)
+      return Number.isFinite(num) ? num : 0
+    }
+
+    function extractJsonCandidate(raw) {
+      const fencedMatch = raw.match(/```(?:json)?\s*([\s\S]*?)```/i)
+      if (fencedMatch && fencedMatch[1]) {
+        return fencedMatch[1].trim()
+      }
+      const firstBrace = raw.indexOf("{")
+      const lastBrace = raw.lastIndexOf("}")
+      if (firstBrace >= 0 && lastBrace > firstBrace) {
+        return raw.slice(firstBrace, lastBrace + 1)
+      }
+      return raw
+    }
+
+    function unwrapPayload(parsed) {
+      if (parsed && parsed.echarts && typeof parsed.echarts === "object") {
+        return parsed.echarts
+      }
+      return parsed
+    }
+
+    function normalizeRow(row, index) {
+      const rank = normalizeNumber(row?.rank) || index + 1
+      const categoryCode = String(row?.category_code || row?.category_label || "other").trim() || "other"
+      const categoryLabel = String(row?.category_label || row?.category_code || "其他").trim() || "其他"
+      return {
+        rank,
+        title: String(row?.title || "未命名话题"),
+        url: String(row?.url || "#"),
+        category_code: categoryCode,
+        category_label: categoryLabel,
+        heat_text: String(row?.heat_text || ""),
+        heat_value: normalizeNumber(row?.heat_value),
+        reply_count: normalizeNumber(row?.reply_count),
+        upvote_count: normalizeNumber(row?.upvote_count),
+        favorite_count: normalizeNumber(row?.favorite_count),
+        heart_count: normalizeNumber(row?.heart_count)
+      }
+    }
+
+    function deriveCategoriesFromTable(table) {
+      const map = new Map()
+      table.forEach((row) => {
+        const key = row.category_code || row.category_label || "other"
+        const current = map.get(key) || {
+          category_code: key,
+          category_label: row.category_label || "其他",
+          item_count: 0,
+          total_heat: 0,
+          avg_heat: 0
+        }
+        current.item_count += 1
+        current.total_heat += normalizeNumber(row.heat_value)
+        map.set(key, current)
+      })
+
+      return Array.from(map.values()).map((item) => ({
+        ...item,
+        avg_heat: item.item_count ? Math.round(item.total_heat / item.item_count) : 0
+      }))
+    }
+
+    function normalizeCategories(categories, table) {
+      const source = Array.isArray(categories) && categories.length ? categories : deriveCategoriesFromTable(table)
+      return source.map((item) => ({
+        category_code: String(item?.category_code || item?.category_label || "other").trim() || "other",
+        category_label: String(item?.category_label || item?.category_code || "其他").trim() || "其他",
+        item_count: normalizeNumber(item?.item_count),
+        total_heat: normalizeNumber(item?.total_heat),
+        avg_heat: normalizeNumber(item?.avg_heat)
+      }))
+    }
+
+    function normalizePayload(parsed) {
+      const payload = unwrapPayload(parsed)
+      if (!payload || typeof payload !== "object") {
+        throw new Error("输入内容不是有效的对象 JSON。")
+      }
+
+      const table = Array.isArray(payload.table) ? payload.table.map(normalizeRow) : []
+      const categories = normalizeCategories(payload.categories, table)
+
+      return {
+        snapshot_id: String(payload.snapshot_id || "未命名快照"),
+        generated_at_ms: normalizeNumber(payload.generated_at_ms) || Date.now(),
+        categories,
+        table
+      }
+    }
+
+    function parsePayloadFromInput() {
+      const raw = payloadInput.value.trim()
+      if (!raw) {
+        throw new Error("请先粘贴 skill 返回的 JSON。")
+      }
+      const candidate = extractJsonCandidate(raw)
+      return normalizePayload(JSON.parse(candidate))
+    }
+
+    function setFeedback(message, isError) {
+      feedback.textContent = message
+      feedback.classList.toggle("error", Boolean(isError))
+    }
+
+    function getStatusMeta(statusText) {
+      if (statusText === "解析失败" || statusText === "ECharts 未加载") {
+        return { className: "kpi-status-danger" }
+      }
+      if (statusText === "无数据") {
+        return { className: "kpi-status-warning" }
+      }
+      return { className: "kpi-status-normal" }
+    }
+
+    function getTopCategory(categories) {
+      return categories.slice().sort((a, b) => Number(b.item_count || 0) - Number(a.item_count || 0))[0]
+    }
+
+    function getHottestItem(table) {
+      return table.slice().sort((a, b) => Number(b.heat_value || 0) - Number(a.heat_value || 0))[0]
+    }
+
+    function buildSummaryCards(payload, statusText) {
+      const totalItems = payload.table.length
+      const totalHeat = payload.categories.reduce((sum, item) => sum + normalizeNumber(item.total_heat), 0)
+      const topCategory = getTopCategory(payload.categories)
+      const hottestItem = getHottestItem(payload.table)
+      const statusMeta = getStatusMeta(statusText)
+      const cards = [
+        {
+          label: "热榜条数",
+          value: formatNumber(totalItems),
+          sub: "当前展示条数"
+        },
+        {
+          label: "总热度",
+          value: formatNumber(totalHeat),
+          sub: "分类汇总热度"
+        },
+        {
+          label: "主导类别",
+          value: topCategory ? topCategory.category_label : "-",
+          sub: topCategory ? `共 ${formatNumber(topCategory.item_count)} 条` : "暂无数据"
+        },
+        {
+          label: "最高热话题",
+          value: hottestItem ? hottestItem.title : "-",
+          sub: hottestItem ? `热度 ${formatCompactHeat(hottestItem.heat_value)}` : "暂无数据",
+          long: true
+        },
+        {
+          label: "数据状态",
+          value: statusText,
+          sub: `上次渲染：${formatClock(state.lastRenderedAtMs)}`,
+          className: statusMeta.className
+        }
+      ]
+
+      summaryGrid.innerHTML = cards.map((card) => `
+        <article class="kpi-card">
+          <div class="kpi-label">${escapeHtml(card.label)}</div>
+          <div class="kpi-value ${card.long ? "long" : ""} ${card.className || ""}" title="${escapeHtml(card.value)}">${escapeHtml(card.value)}</div>
+          <div class="kpi-sub">${escapeHtml(card.sub)}</div>
+        </article>
+      `).join("")
+    }
+
+    function syncCategoryColorMap(categories) {
+      const known = { ...state.categoryColorMap }
+      const usedSlots = new Set(Object.values(known))
+      const codes = categories.map((item) => item.category_code).filter(Boolean)
+      const newCodes = Array.from(new Set(codes)).filter((code) => known[code] === undefined).sort()
+      newCodes.forEach((code) => {
+        let slot = 0
+        while (usedSlots.has(slot)) {
+          slot += 1
+        }
+        known[code] = slot
+        usedSlots.add(slot)
+      })
+      state.categoryColorMap = known
+    }
+
+    function getThemePalette() {
+      const theme = themeMeta[state.theme] || themeMeta.gov_blue_gold
+      return theme.palette
+    }
+
+    function getCategoryColor(code) {
+      const palette = getThemePalette()
+      const slot = state.categoryColorMap[code] ?? 0
+      return palette[slot % palette.length]
+    }
+
+    function makeGradient(baseColor) {
+      if (!window.echarts) return baseColor
+      return new echarts.graphic.LinearGradient(0, 0, 0, 1, [
+        { offset: 0, color: baseColor },
+        { offset: 1, color: `${baseColor}22` }
+      ])
+    }
+
+    function renderCategoryPills(categories) {
+      if (!categories.length) {
+        categoryPills.innerHTML = '<div class="table-empty">当前没有可展示的类别汇总。</div>'
+        return
+      }
+      categoryPills.innerHTML = categories.map((category) => {
+        const color = getCategoryColor(category.category_code)
+        return `
+          <span class="category-pill" style="border-color:${color}55;color:${color};background:${color}14;">
+            <span class="swatch" style="background:${color};color:${color};"></span>
+            ${escapeHtml(category.category_label)} · ${formatNumber(category.item_count)} 条 · 热度 ${formatNumber(category.total_heat)}
+          </span>
+        `
+      }).join("")
+    }
+
+    function medalClassByRank(rank) {
+      if (rank === 1) return "medal-gold"
+      if (rank === 2) return "medal-silver"
+      if (rank === 3) return "medal-bronze"
+      return ""
+    }
+
+    function renderTopTopics(table) {
+      if (!table.length) {
+        insightTopList.innerHTML = '<div class="insight-empty">当前没有可展示的热点话题。</div>'
+        return
+      }
+      const topTopics = table.slice().sort((a, b) => b.heat_value - a.heat_value).slice(0, 3)
+      insightTopList.innerHTML = topTopics.map((row, index) => `
+        <div class="insight-item">
+          <div class="insight-rank ${medalClassByRank(index + 1)}">${index + 1}</div>
+          <div>
+            <div class="insight-title" title="${escapeHtml(row.title)}">${escapeHtml(row.title)}</div>
+            <div class="insight-meta">${escapeHtml(row.category_label)} · 热度 ${escapeHtml(row.heat_text || formatCompactHeat(row.heat_value))}</div>
+          </div>
+        </div>
+      `).join("")
+    }
+
+    function renderConclusions(payload) {
+      const topCategory = getTopCategory(payload.categories)
+      const hottestItem = getHottestItem(payload.table)
+      const conclusions = [
+        `主导类别：${topCategory ? `${topCategory.category_label}（${formatNumber(topCategory.item_count)} 条）` : "暂无数据"}`,
+        `关注度最高：${hottestItem ? `${hottestItem.title}（热度 ${formatCompactHeat(hottestItem.heat_value)}）` : "暂无数据"}`,
+        `数据更新时间：${formatTime(payload.generated_at_ms)}`
+      ]
+      insightConclusionList.innerHTML = conclusions.map((item) => `
+        <div class="conclusion-item" title="${escapeHtml(item)}">${escapeHtml(item)}</div>
+      `).join("")
+    }
+
+    function renderTable(table) {
+      if (!table.length) {
+        tableWrap.innerHTML = '<div class="table-empty">当前没有可展示的明细数据。</div>'
+        return
+      }
+
+      const rows = table.slice().sort((a, b) => a.rank - b.rank)
+      tableWrap.innerHTML = `
+        <table>
+          <thead>
+            <tr>
+              <th>排名</th>
+              <th>标题</th>
+              <th>类别</th>
+              <th>热度</th>
+              <th>回复</th>
+              <th>赞同</th>
+              <th>收藏</th>
+              <th>红心</th>
+            </tr>
+          </thead>
+          <tbody>
+            ${rows.map((row, index) => {
+              const rank = row.rank || index + 1
+              const themeColor = getCategoryColor(row.category_code)
+              const topClass = rank === 1 ? "top-1" : rank === 2 ? "top-2" : rank === 3 ? "top-3" : ""
+              return `
+                <tr class="${topClass}">
+                  <td><span class="rank-badge ${medalClassByRank(rank)}">#${escapeHtml(rank)}</span></td>
+                  <td>
+                    <div class="topic-cell">
+                      <div class="topic-title" title="${escapeHtml(row.title)}">${escapeHtml(row.title)}</div>
+                      <a class="topic-url" href="${escapeHtml(row.url || "#")}" target="_blank" rel="noreferrer" title="${escapeHtml(row.url || "#")}">${escapeHtml(row.url || "-")}</a>
+                    </div>
+                  </td>
+                  <td>
+                    <span class="category-tag" style="border-color:${themeColor}55;color:${themeColor};background:${themeColor}14;">
+                      <span class="swatch" style="background:${themeColor};color:${themeColor};"></span>
+                      ${escapeHtml(row.category_label || "其他")}
+                    </span>
+                  </td>
+                  <td>
+                    <div class="heat-value">${escapeHtml(row.heat_text || formatCompactHeat(row.heat_value))}</div>
+                    <div class="muted">数值 ${formatNumber(row.heat_value)}</div>
+                  </td>
+                  <td>${formatNumber(row.reply_count)}</td>
+                  <td>${formatNumber(row.upvote_count)}</td>
+                  <td>${formatNumber(row.favorite_count)}</td>
+                  <td>${formatNumber(row.heart_count)}</td>
+                </tr>
+              `
+            }).join("")}
+          </tbody>
+        </table>
+      `
+    }
+
+    function buildEmptyChartOption(text) {
+      return {
+        animation: false,
+        title: {
+          text,
+          left: "center",
+          top: "center",
+          textStyle: {
+            color: getComputedStyle(document.documentElement).getPropertyValue("--muted").trim() || "#8faecc",
+            fontSize: 14,
+            fontWeight: 500
+          }
+        },
+        xAxis: { show: false },
+        yAxis: { show: false },
+        series: []
+      }
+    }
+
+    function chartBaseOption(labels) {
+      const styles = getComputedStyle(document.documentElement)
+      const text = styles.getPropertyValue("--text").trim() || "#eaf4ff"
+      const muted = styles.getPropertyValue("--muted").trim() || "#8faecc"
+      const line = styles.getPropertyValue("--line").trim() || "rgba(62, 199, 255, 0.2)"
+      const panelStrong = styles.getPropertyValue("--panel-strong").trim() || "rgba(14, 42, 77, 0.97)"
+      return {
+        backgroundColor: "transparent",
+        grid: { left: 56, right: 24, top: 36, bottom: 56 },
+        tooltip: {
+          trigger: "axis",
+          backgroundColor: panelStrong,
+          borderColor: line,
+          borderWidth: 1,
+          textStyle: { color: text },
+          extraCssText: "box-shadow:0 12px 28px rgba(0,0,0,0.28);border-radius:12px;"
+        },
+        xAxis: {
+          type: "category",
+          data: labels,
+          axisTick: { show: false },
+          axisLine: { lineStyle: { color: line } },
+          axisLabel: {
+            color: muted,
+            fontSize: 12,
+            interval: 0,
+            formatter(value) {
+              return truncateLabel(value, 6)
+            }
+          }
+        },
+        yAxis: {
+          type: "value",
+          splitLine: { lineStyle: { color: line, type: "dashed" } },
+          axisLine: { show: false },
+          axisLabel: { color: muted, fontSize: 12 }
+        }
+      }
+    }
+
+    function renderCountChart(categories) {
+      if (!countChart) return
+      if (!categories.length) {
+        countChart.clear()
+        countChart.setOption(buildEmptyChartOption("暂无分类数据"))
+        return
+      }
+      const sorted = categories.slice().sort((a, b) => b.item_count - a.item_count)
+      const labels = sorted.map((item) => item.category_label)
+      const data = sorted.map((item) => item.item_count)
+      countChart.setOption({
+        ...chartBaseOption(labels),
+        series: [
+          {
+            name: "热榜条数",
+            type: "bar",
+            barWidth: 30,
+            data: sorted.map((item) => ({
+              value: item.item_count,
+              itemStyle: {
+                color: makeGradient(getCategoryColor(item.category_code)),
+                borderRadius: [10, 10, 0, 0],
+                shadowBlur: 14,
+                shadowColor: `${getCategoryColor(item.category_code)}66`
+              }
+            })),
+            label: {
+              show: true,
+              position: "top",
+              color: getComputedStyle(document.documentElement).getPropertyValue("--text").trim(),
+              fontSize: 12,
+              formatter: ({ value }) => formatNumber(value)
+            }
+          },
+          {
+            name: "顶部强调",
+            type: "pictorialBar",
+            symbol: hexagonSymbol,
+            symbolSize: [20, 14],
+            symbolOffset: [0, -7],
+            symbolPosition: "end",
+            z: 10,
+            data: sorted.map((item) => ({
+              value: item.item_count,
+              itemStyle: {
+                color: getCategoryColor(item.category_code),
+                shadowBlur: 10,
+                shadowColor: `${getCategoryColor(item.category_code)}88`
+              }
+            }))
+          }
+        ]
+      }, true)
+    }
+
+    function renderHeatChart(categories) {
+      if (!heatChart) return
+      if (!categories.length) {
+        heatChart.clear()
+        heatChart.setOption(buildEmptyChartOption("暂无热度数据"))
+        return
+      }
+      const sorted = categories.slice().sort((a, b) => b.total_heat - a.total_heat)
+      const labels = sorted.map((item) => item.category_label)
+      heatChart.setOption({
+        ...chartBaseOption(labels),
+        yAxis: {
+          ...chartBaseOption(labels).yAxis,
+          axisLabel: {
+            color: getComputedStyle(document.documentElement).getPropertyValue("--muted").trim(),
+            fontSize: 12,
+            formatter(value) {
+              const num = Number(value || 0)
+              if (num >= 10000) {
+                return `${Math.round(num / 1000) / 10}万`
+              }
+              return formatNumber(num)
+            }
+          }
+        },
+        series: [
+          {
+            name: "总热度",
+            type: "bar",
+            barWidth: 30,
+            data: sorted.map((item) => ({
+              value: item.total_heat,
+              itemStyle: {
+                color: makeGradient(getCategoryColor(item.category_code)),
+                borderRadius: [10, 10, 0, 0],
+                shadowBlur: 14,
+                shadowColor: `${getCategoryColor(item.category_code)}66`
+              }
+            })),
+            label: {
+              show: true,
+              position: "top",
+              color: getComputedStyle(document.documentElement).getPropertyValue("--text").trim(),
+              fontSize: 12,
+              formatter: ({ value }) => formatCompactHeat(value)
+            },
+            markPoint: {
+              symbol: "pin",
+              symbolSize: 42,
+              label: {
+                color: "#05121d",
+                formatter: `最高：${truncateLabel(sorted[0].category_label, 6)}`,
+                fontSize: 11,
+                fontWeight: 700
+              },
+              itemStyle: {
+                color: getCategoryColor(sorted[0].category_code)
+              },
+              data: [{ type: "max", name: "最高热度" }]
+            }
+          }
+        ]
+      }, true)
+    }
+
+    function updateHeaderMeta(payload) {
+      snapshotIdEl.textContent = payload.snapshot_id || "未命名快照"
+      generatedAtEl.textContent = formatTime(payload.generated_at_ms)
+    }
+
+    function updateFooterMeta(payload) {
+      footerGeneratedAtEl.textContent = formatTime(payload.generated_at_ms)
+      footerSkinEl.textContent = (themeMeta[state.theme] || themeMeta.gov_blue_gold).label
+    }
+
+    function renderDashboard(payload, statusText) {
+      const nextStatus = statusText || (!window.echarts ? "ECharts 未加载" : payload.table.length === 0 ? "无数据" : "正常")
+      state.payload = payload
+      state.status = nextStatus
+      state.lastRenderedAtMs = Date.now()
+      syncCategoryColorMap(payload.categories)
+      updateHeaderMeta(payload)
+      updateFooterMeta(payload)
+      buildSummaryCards(payload, nextStatus)
+      renderCategoryPills(payload.categories)
+      renderTopTopics(payload.table)
+      renderConclusions(payload)
+      renderCountChart(payload.categories)
+      renderHeatChart(payload.categories)
+      renderTable(payload.table)
+    }
+
+    function safeLocalStorageGet(key) {
+      try {
+        return window.localStorage.getItem(key)
+      } catch {
+        return null
+      }
+    }
+
+    function safeLocalStorageSet(key, value) {
+      try {
+        window.localStorage.setItem(key, value)
+      } catch {
+        return null
+      }
+      return null
+    }
+
+    function updateThemeButtons() {
+      themeSwitcher.querySelectorAll(".theme-btn").forEach((button) => {
+        button.classList.toggle("active", button.dataset.theme === state.theme)
+      })
+    }
+
+    function resizeCharts() {
+      if (countChart) countChart.resize()
+      if (heatChart) heatChart.resize()
+    }
+
+    function setTheme(themeName) {
+      if (!themeMeta[themeName]) return
+      state.theme = themeName
+      document.documentElement.dataset.theme = themeName
+      safeLocalStorageSet("zhihu-hotlist-theme", themeName)
+      updateThemeButtons()
+      if (state.lastSuccessfulPayload) {
+        renderDashboard(state.lastSuccessfulPayload, state.status)
+      }
+      requestAnimationFrame(() => resizeCharts())
+    }
+
+    function openDrawer() {
+      state.drawerOpen = true
+      dataDrawer.classList.add("open")
+      drawerBackdrop.classList.add("open")
+      dataDrawer.setAttribute("aria-hidden", "false")
+      requestAnimationFrame(() => payloadInput.focus())
+    }
+
+    function closeDrawer() {
+      state.drawerOpen = false
+      dataDrawer.classList.remove("open")
+      drawerBackdrop.classList.remove("open")
+      dataDrawer.setAttribute("aria-hidden", "true")
+      drawerToggle.focus()
+      requestAnimationFrame(() => resizeCharts())
+    }
+
+    function toggleDrawer() {
+      if (state.drawerOpen) {
+        closeDrawer()
+      } else {
+        openDrawer()
+      }
+    }
+
+    function tryRenderFromInput() {
+      try {
+        const payload = parsePayloadFromInput()
+        state.lastSuccessfulPayload = payload
+        renderDashboard(payload)
+        const statusText = !window.echarts ? "ECharts 未加载" : payload.table.length === 0 ? "无数据" : "正常"
+        state.status = statusText
+        buildSummaryCards(payload, statusText)
+        setFeedback(`看板已更新：${payload.categories.length} 个类别，${payload.table.length} 条热榜。`, false)
+      } catch (error) {
+        state.status = !window.echarts ? "ECharts 未加载" : "解析失败"
+        if (state.lastSuccessfulPayload) {
+          renderDashboard(state.lastSuccessfulPayload, state.status)
+        }
+        setFeedback(error?.message || "渲染失败，请检查 JSON 格式。", true)
+      }
+    }
+
+    function formatPayloadIntoInput(payload) {
+      payloadInput.value = JSON.stringify(payload, null, 2)
+    }
+
+    function startClock() {
+      const tick = () => {
+        currentTimeEl.textContent = formatTime(Date.now())
+      }
+      tick()
+      window.setInterval(tick, 1000)
+    }
+
+    function initCharts() {
+      if (!window.echarts) return
+      countChart = echarts.init(document.getElementById("categoryCountChart"))
+      heatChart = echarts.init(document.getElementById("categoryHeatChart"))
+    }
+
+    function bindEvents() {
+      document.getElementById("renderBtn").addEventListener("click", tryRenderFromInput)
+      document.getElementById("sampleBtn").addEventListener("click", () => {
+        formatPayloadIntoInput(defaultPayload)
+        tryRenderFromInput()
+      })
+      document.getElementById("formatBtn").addEventListener("click", () => {
+        try {
+          const payload = parsePayloadFromInput()
+          formatPayloadIntoInput(payload)
+          setFeedback("JSON 已格式化。", false)
+        } catch (error) {
+          setFeedback(error?.message || "当前内容不是合法 JSON。", true)
+        }
+      })
+      drawerToggle.addEventListener("click", toggleDrawer)
+      drawerClose.addEventListener("click", closeDrawer)
+      drawerBackdrop.addEventListener("click", closeDrawer)
+      dataDrawer.addEventListener("transitionend", resizeCharts)
+      themeSwitcher.querySelectorAll(".theme-btn").forEach((button) => {
+        button.addEventListener("click", () => setTheme(button.dataset.theme))
+      })
+      payloadInput.addEventListener("keydown", (event) => {
+        if (event.key === "Enter" && (event.ctrlKey || event.metaKey)) {
+          event.preventDefault()
+          tryRenderFromInput()
+        }
+      })
+      document.addEventListener("keydown", (event) => {
+        if (event.key === "Escape" && state.drawerOpen) {
+          event.preventDefault()
+          closeDrawer()
+        }
+      })
+      window.addEventListener("resize", resizeCharts)
+    }
+
+    function init() {
+      const storedTheme = safeLocalStorageGet("zhihu-hotlist-theme")
+      if (storedTheme && themeMeta[storedTheme]) {
+        state.theme = storedTheme
+        document.documentElement.dataset.theme = storedTheme
+      }
+      updateThemeButtons()
+      initCharts()
+      bindEvents()
+      formatPayloadIntoInput(defaultPayload)
+      startClock()
+
+      const normalizedDefault = normalizePayload(defaultPayload)
+      state.lastSuccessfulPayload = normalizedDefault
+      renderDashboard(normalizedDefault, !window.echarts ? "ECharts 未加载" : "正常")
+      if (!window.echarts) {
+        setFeedback("ECharts 脚本加载失败，请确认当前环境可以访问 CDN。", true)
+      } else {
+        setFeedback("已加载示例数据。", false)
+      }
+    }
+
+    init()
+  </script>
+</body>
+</html>
