feat: 发布三笙AI情报局独立版公司研发基线

同步家纺情报 v2 数据、59 个严格权威源、趋势图库、移动端交互、Google/Yandex 翻译门控及静态 SEO/GEO 构建。补充面向 C# 研发的 README，明确当前无 LLM、多模态与生图模型，记录翻译请求参数、缓存与失败策略、数据处理边界、前端职责和无 GitHub Pages 部署流程。新增按日期倒序维护的 CHANGELOG，记录影响、验证与代码/数据/dist 回滚方法。验证：11 个 Python 契约测试、13 个 Node 前端测试通过；静态构建生成 1096 个 Sitemap URL。
2026-08-14 19:26:39 +08:00
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+/** 跨境活动独立渲染器，避免继续膨胀情报主渲染文件。 */
+
+let activityFocus = "priority";
+let activityRegion = "";
+let activityPlatform = "";
+let activityFormat = "";
+
+export function activityDayOffset(startDate, now = new Date()) {
+  const [year, month, day] = String(startDate || "").slice(0, 10).split("-").map(Number);
+  const eventDay = Date.UTC(year, month - 1, day);
+  const currentDay = Date.UTC(now.getFullYear(), now.getMonth(), now.getDate());
+  return Math.round((eventDay - currentDay) / 86400000);
+}
+
+function create(tag, className = "", text = "") {
+  const node = document.createElement(tag);
+  if (className) node.className = className;
+  if (text) node.textContent = text;
+  return node;
+}
+
+function link(label, href, className = "activity-action") {
+  const node = create("a", className, label);
+  node.href = href;
+  node.target = "_blank";
+  node.rel = "noopener noreferrer nofollow";
+  return node;
+}
+
+function selectControl(label, placeholder, values, value) {
+  const field = create("label", "activity-filter-field");
+  field.appendChild(create("span", "", label));
+  const select = create("select", "activity-filter-control");
+  const all = create("option", "", placeholder);
+  all.value = "";
+  select.appendChild(all);
+  values.forEach((item) => {
+    const option = create("option", "", item);
+    option.value = item;
+    select.appendChild(option);
+  });
+  select.value = value;
+  field.appendChild(select);
+  return { field, select };
+}
+
+function activityCard(item, translationProvider) {
+  const card = create("article", "activity-card");
+  const visual = create("div", "activity-card-visual");
+  const poster = create("div", "activity-generated-poster");
+  poster.append(
+    create("span", "activity-poster-source", item.source || item.authority || "官方活动"),
+    create("strong", "", item.title),
+    create("small", "", `${item.region || "全球"} · ${item.activity_type || "跨境活动"}`),
+  );
+  visual.appendChild(poster);
+  if (item.image) {
+    const image = create("img", "activity-card-image");
+    image.src = item.image;
+    image.alt = `${item.title} 活动海报`;
+    image.width = 640;
+    image.height = 360;
+    image.loading = "lazy";
+    image.referrerPolicy = "no-referrer";
+    image.addEventListener("error", () => image.remove());
+    visual.appendChild(image);
+  }
+  const dateBlock = create("div", "activity-date-block");
+  const daysUntil = activityDayOffset(item.start_date);
+  const eventDate = new Date(`${item.start_date}T00:00:00`);
+  const monthLabel = new Intl.DateTimeFormat("zh-CN", { month: "long" }).format(eventDate);
+  const dayLabel = new Intl.DateTimeFormat("zh-CN", { day: "numeric" }).format(eventDate).replace(/日$/, "");
+  const countdownLabel = daysUntil === 0 ? "今天" : `${daysUntil} 天后`;
+  dateBlock.setAttribute("aria-label", `${item.start_date}，${countdownLabel}`);
+  dateBlock.append(
+    create("span", "activity-date-month", monthLabel),
+    create("strong", "activity-date-day", dayLabel),
+    create("span", "activity-date-countdown", countdownLabel),
+  );
+  visual.appendChild(dateBlock);
+
+  const body = create("div", "activity-card-body");
+  const meta = create("div", "activity-card-meta");
+  meta.append(
+    create("span", `activity-source-level${item.official_activity ? " is-official" : ""}`, item.source_level),
+    create("span", "", item.activity_type),
+    create("span", "", item.format),
+  );
+  body.append(meta, create("h3", "", item.title));
+  if (item.title_original) body.appendChild(create("p", "activity-title-original", item.title_original));
+  body.appendChild(create("p", "activity-location", `${item.start_date} · ${item.location || item.region}`));
+  const tags = create("div", "activity-platforms");
+  (item.platforms || []).forEach((platform) => tags.appendChild(create("span", "", platform)));
+  if (tags.children.length) body.appendChild(tags);
+  body.append(
+    create("p", "activity-summary", item.summary),
+    create("p", "activity-next-action", item.next_action),
+  );
+  const actions = create("div", "activity-actions");
+  const registrationUrl = item.registration_url || item.url;
+  if (registrationUrl) actions.appendChild(link(item.format === "线上" ? "查看并报名" : "查看地点并报名", registrationUrl, "activity-action primary"));
+  const sourceUrl = item.source_url || "";
+  if (sourceUrl && sourceUrl !== registrationUrl && sourceUrl !== item.url) actions.appendChild(link("查看来源页", sourceUrl));
+  const googleUrl = item.translation_url;
+  const yandexUrl = item.translation_fallback_url;
+  const translationUrl = translationProvider === "yandex" ? (yandexUrl || googleUrl) : translationProvider === "google" ? (googleUrl || yandexUrl) : "";
+  if (translationUrl) actions.appendChild(link("查看译文版", translationUrl, `activity-action translate${translationUrl === yandexUrl ? " is-fallback" : ""}`));
+  body.append(actions, create("p", "activity-proof", `${item.source} · ${item.authority} · 核验 ${String(item.verified_at || "").slice(0, 10)}`));
+  card.append(visual, body);
+  return card;
+}
+
+export function renderActivities(items, container, translationProvider = "") {
+  const sourceItems = Array.isArray(items) ? items : [];
+  const currentItems = sourceItems.filter((item) => activityDayOffset(item.start_date) >= 0);
+  const toolbar = create("section", "activity-filter-toolbar");
+  const focus = create("div", "activity-focus-switch");
+  [
+    ["priority", "优先参加"],
+    ["direct", "家纺直接相关"],
+    ["must", "跨境必看"],
+    ["all", "全部活动"],
+  ].forEach(([value, label]) => {
+    const button = create("button", `activity-focus-btn${activityFocus === value ? " active" : ""}`, label);
+    button.type = "button";
+    button.addEventListener("click", () => {
+      activityFocus = value;
+      render();
+    });
+    focus.appendChild(button);
+  });
+  const regions = [...new Set(currentItems.map((item) => item.region).filter(Boolean))].sort((a, b) => a.localeCompare(b, "zh-CN"));
+  const platforms = [...new Set(currentItems.flatMap((item) => item.platforms || []))].sort((a, b) => a.localeCompare(b, "zh-CN"));
+  const regionField = selectControl("目标地区", "全部地区", regions, activityRegion);
+  const platformField = selectControl("相关平台", "全部平台", platforms, activityPlatform);
+  const formatField = selectControl("参加方式", "线上和线下", ["线上", "线下"], activityFormat);
+  const fields = create("div", "activity-filter-fields");
+  fields.append(regionField.field, platformField.field, formatField.field);
+  toolbar.append(focus, fields);
+  const summary = create("section", "scene-summary activity-summary-bar");
+  const grid = create("div", "activity-grid");
+
+  const render = () => {
+    focus.querySelectorAll?.("button").forEach?.((button, index) => {
+      button.classList.toggle("active", ["priority", "direct", "must", "all"][index] === activityFocus);
+    });
+    const selected = currentItems.filter((item) => {
+      if (activityFocus === "priority" && !["direct", "must"].includes(item.relevance)) return false;
+      if (["direct", "must"].includes(activityFocus) && item.relevance !== activityFocus) return false;
+      if (activityRegion && item.region !== activityRegion) return false;
+      if (activityPlatform && !(item.platforms || []).includes(activityPlatform)) return false;
+      if (activityFormat && item.format !== activityFormat) return false;
+      return true;
+    }).sort((a, b) => String(a.start_date).localeCompare(String(b.start_date)) || Number(b.official_activity) - Number(a.official_activity));
+    summary.innerHTML = "";
+    summary.append(
+      create("strong", "", `${selected.length}/${currentItems.length} 场可参加活动`),
+      create("span", "", "官方活动优先；行业媒体用于发现，报名与议程以主办方页面为准"),
+    );
+    grid.innerHTML = "";
+    selected.forEach((item) => grid.appendChild(activityCard(item, translationProvider)));
+    if (!selected.length) grid.appendChild(create("div", "intelligence-empty", "当前筛选下没有可参加活动，请调整地区、平台或活动类型。"));
+  };
+  regionField.select.addEventListener("change", () => { activityRegion = regionField.select.value; render(); });
+  platformField.select.addEventListener("change", () => { activityPlatform = platformField.select.value; render(); });
+  formatField.select.addEventListener("change", () => { activityFormat = formatField.select.value; render(); });
+  container.append(toolbar, summary, grid);
+  render();
+}