diff --git a/assets/style.css b/assets/style.css
index ee32538..68db85b 100644
--- a/assets/style.css
+++ b/assets/style.css
@@ -1322,3 +1322,70 @@ video.video-thumb.video-thumb-mini {
 }
 /* 联想选中后回填的详细地址（让人看见记下来的是什么） */
 .loc-detail { margin-top: 6px; font-size: 12.5px; word-break: break-all; }
+
+/* ── 22. 首页：旅行地图 + 活动列表两个标签页（批 16）───────────── */
+/* 首页的地图是主视图，比详情页那张再高一点 */
+.home-map { height: clamp(520px, 78vh, 920px); }
+
+/* 一次旅行一枚图标：圆形（有封面放封面，没有放 📍）+ 下面一行活动名 */
+.home-marker-wrap { display: flex; flex-direction: column; align-items: center; gap: 3px; cursor: pointer; }
+.home-marker {
+    width: 44px; height: 44px; border-radius: 50%;
+    border: 3px solid #fff; box-shadow: 0 2px 8px rgba(0, 0, 0, .35);
+    background: var(--surface); overflow: hidden;
+    display: flex; align-items: center; justify-content: center; font-size: 22px;
+}
+.home-marker img { width: 100%; height: 100%; object-fit: cover; display: block; }
+.home-marker-emoji { line-height: 1; }
+.home-marker-label {
+    max-width: 92px; padding: 1px 7px; border-radius: 999px;
+    background: rgba(255, 255, 255, .94); color: var(--text);
+    font-size: 11.5px; line-height: 17px; white-space: nowrap;
+    overflow: hidden; text-overflow: ellipsis;
+    box-shadow: 0 1px 4px rgba(0, 0, 0, .22);
+}
+
+/* 列表：每行一条 —— 左边封面、右边标题/简述/参与人/摘要 */
+.act-list { display: flex; flex-direction: column; gap: 12px; }
+.act-row {
+    display: grid; grid-template-columns: 176px 1fr; gap: 16px;
+    background: var(--surface); border: 1px solid var(--border);
+    border-radius: var(--radius); padding: 12px;
+    transition: box-shadow .15s, border-color .15s;
+}
+.act-row:hover { border-color: var(--border-strong); box-shadow: var(--shadow-sm); }
+.act-row-cover {
+    position: relative; aspect-ratio: 4 / 3; border-radius: var(--radius-sm, 8px);
+    overflow: hidden; background: var(--bg-soft);
+}
+.act-row-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
+.act-row-cover-ph {
+    width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
+    font-size: 26px; color: var(--text-mute);
+}
+.act-row-body { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
+.act-row-body h3 { margin: 0; font-size: 16px; }
+.act-row-desc {
+    margin: 0; font-size: 13.5px; line-height: 1.5;
+    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
+    overflow: hidden;
+}
+.act-row-members { display: flex; flex-wrap: wrap; gap: 6px; }
+.act-member {
+    display: inline-flex; align-items: center; gap: 5px;
+    padding: 2px 9px 2px 2px; border-radius: 999px; background: var(--bg-soft);
+    font-size: 12.5px; color: var(--text-soft); max-width: 150px;
+}
+.act-member img { width: 20px; height: 20px; border-radius: 50%; object-fit: cover; display: block; }
+.act-member-initial {
+    width: 20px; height: 20px; border-radius: 50%; background: var(--accent); color: #fff;
+    font-size: 11px; display: flex; align-items: center; justify-content: center; flex: 0 0 auto;
+}
+.act-member-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.act-member-more { font-size: 12.5px; color: var(--text-mute); align-self: center; }
+.act-row-meta { display: flex; flex-wrap: wrap; gap: 4px 14px; }
+
+@media (max-width: 560px) {
+    .act-row { grid-template-columns: 104px 1fr; gap: 12px; padding: 10px; }
+    .home-map { height: clamp(420px, 62vh, 620px); }
+}
diff --git a/src/Controllers/ActivityController.php b/src/Controllers/ActivityController.php
index e0beee2..a11efdc 100644
--- a/src/Controllers/ActivityController.php
+++ b/src/Controllers/ActivityController.php
@@ -22,29 +22,152 @@ class ActivityController
         $stmt->execute([$familyId]);
         $activities = $stmt->fetchAll();
 
-        // 每个活动的节点数：一次 GROUP BY 查完，避免逐个 COUNT 的 N+1
+        $stats = [];
         if (!empty($activities)) {
-            $ids = array_column($activities, 'id');
-            $ph  = implode(',', array_fill(0, count($ids), '?'));
-            $s = $db->prepare("SELECT activity_id, COUNT(*) AS cnt
-                FROM trip_nodes WHERE activity_id IN ($ph) GROUP BY activity_id");
-            $s->execute($ids);
-            $counts = [];
-            foreach ($s->fetchAll() as $row) {
-                $counts[(int)$row['activity_id']] = (int)$row['cnt'];
-            }
-            foreach ($activities as &$a) {
-                $a['node_count'] = $counts[(int)$a['id']] ?? 0;
-            }
-            unset($a);
+            $stats = $this->collectStats(array_map('intval', array_column($activities, 'id')));
         }
 
         view('activities/index', [
             'activities' => $activities,
+            'stats'      => $stats,
             'pageTitle'  => '活动列表',
         ]);
     }
 
+    /**
+     * 首页要的聚合数据，**全部一次查完**（几条 IN 查询，不做逐活动的 N+1）：
+     *   - 主要位置（地图图标落哪儿）：所有坐标点的重心，执行节点优先、计划节点兜底
+     *   - 去过的几个地方：起终点里的地名去重计数
+     *   - 时间跨度：最早开始 ~ 最晚结束，跨了几个自然日
+     *   - 主要参与人：按参与节点数降序（参与得越多越靠前）
+     *
+     * @param array<int, int> $ids
+     * @return array<int, array>
+     */
+    private function collectStats(array $ids): array
+    {
+        if (empty($ids)) return [];
+        $db = Database::get();
+        $ph = implode(',', array_fill(0, count($ids), '?'));
+
+        $out = [];
+        foreach ($ids as $id) {
+            $out[$id] = [
+                'node_count'   => 0,
+                'place_count'  => 0,
+                'place_main'   => '',
+                'lng'          => null,
+                'lat'          => null,
+                'start'        => null,
+                'end'          => null,
+                'days'         => 0,
+                'span_text'    => '',
+                'members'      => [],
+                'member_count' => 0,
+            ];
+        }
+
+        /* ① 节点：位置 / 时间 / 地点名。取消的节点不计入（它没真的发生）。 */
+        $s = $db->prepare("SELECT activity_id, node_category, status, start_time, end_time,
+                                  start_location, end_location
+                           FROM trip_nodes WHERE activity_id IN ($ph) ORDER BY start_time");
+        $s->execute($ids);
+        $coords = [];   // activity => ['reality' => [[lng,lat,name],…], 'plan' => …]
+        $names  = [];   // activity => [地名 => 1]
+        foreach ($s->fetchAll() as $n) {
+            $aid = (int)$n['activity_id'];
+            if (!isset($out[$aid])) continue;
+            $st  = &$out[$aid];
+            $st['node_count']++;
+            if ($n['status'] === 'cancelled') continue;
+
+            foreach (['start_location', 'end_location'] as $key) {
+                $loc = json_decode((string)$n[$key], true);
+                if (!is_array($loc)) continue;
+                $name = trim((string)($loc['name'] ?? ''));
+                if ($name !== '') $names[$aid][$name] = 1;
+                $lng = isset($loc['lng']) ? (float)$loc['lng'] : 0.0;
+                $lat = isset($loc['lat']) ? (float)$loc['lat'] : 0.0;
+                if ($lng == 0.0 && $lat == 0.0) continue;   // 只有地名、没坐标
+                $bucket = ($n['node_category'] === 'reality') ? 'reality' : 'plan';
+                $coords[$aid][$bucket][] = [$lng, $lat, $name];
+            }
+            if (!empty($n['start_time'])
+                && ($st['start'] === null || $n['start_time'] < $st['start'])) {
+                $st['start'] = $n['start_time'];
+            }
+            if (!empty($n['end_time'])
+                && ($st['end'] === null || $n['end_time'] > $st['end'])) {
+                $st['end'] = $n['end_time'];
+            }
+        }
+        unset($st);
+
+        /* ② 重心 = 主要位置；离重心最近那个点的地名当它的名字。
+              执行节点优先：计划改了、实际没去的地方不该把图标拽过去。 */
+        foreach ($coords as $aid => $set) {
+            $pts = !empty($set['reality']) ? $set['reality'] : ($set['plan'] ?? []);
+            if (!$pts) continue;
+            $sl = 0.0; $sb = 0.0;
+            foreach ($pts as $p) { $sl += $p[0]; $sb += $p[1]; }
+            $cl = $sl / count($pts);
+            $cb = $sb / count($pts);
+            $out[$aid]['lng'] = $cl;
+            $out[$aid]['lat'] = $cb;
+            $best = ''; $bestD = null;
+            foreach ($pts as $p) {
+                if ($p[2] === '') continue;
+                $d = ($p[0] - $cl) * ($p[0] - $cl) + ($p[1] - $cb) * ($p[1] - $cb);
+                if ($bestD === null || $d < $bestD) { $bestD = $d; $best = $p[2]; }
+            }
+            $out[$aid]['place_main'] = $best;
+        }
+
+        /* ③ 去过的地方数：地名去重（同一个城市写十次也只算一个） */
+        foreach ($names as $aid => $set) {
+            $out[$aid]['place_count'] = count($set);
+        }
+
+        /* ④ 时间跨度：按自然日算（同一天出发并返回算 1 天） */
+        foreach ($out as $aid => $st) {
+            if ($st['start'] === null) continue;
+            $from = strtotime($st['start']);
+            $to   = $st['end'] !== null ? strtotime($st['end']) : $from;
+            if (!$from) continue;
+            $fromD = strtotime(date('Y-m-d', $from));
+            $toD   = strtotime(date('Y-m-d', $to));
+            $days  = (int)floor(($toD - $fromD) / 86400) + 1;
+            $out[$aid]['days'] = max(1, $days);
+            $out[$aid]['span_text'] = ($toD === $fromD)
+                ? date('Y-m-d', $fromD)
+                : date('Y-m-d', $fromD) . ' ~ ' . date('m-d', $toD);
+        }
+
+        /* ⑤ 参与人：参与节点越多越靠前 —— 「主要参与人」就是排在前面的那几位 */
+        $s = $db->prepare("SELECT tn.activity_id, nm.user_id, u.name, u.avatar, COUNT(*) AS hits
+                           FROM node_members nm
+                           JOIN trip_nodes tn ON tn.id = nm.trip_node_id
+                           LEFT JOIN users u ON u.id = nm.user_id
+                           WHERE tn.activity_id IN ($ph)
+                           GROUP BY tn.activity_id, nm.user_id, u.name, u.avatar
+                           ORDER BY tn.activity_id, hits DESC, nm.user_id ASC");
+        $s->execute($ids);
+        foreach ($s->fetchAll() as $m) {
+            $aid = (int)$m['activity_id'];
+            if (!isset($out[$aid])) continue;
+            $out[$aid]['members'][] = [
+                'id'     => (int)$m['user_id'],
+                'name'   => (string)($m['name'] ?? ''),
+                'avatar' => media_avatar($m['avatar'] ?? null),
+            ];
+        }
+        foreach ($out as $aid => $st) {
+            $out[$aid]['member_count'] = count($st['members']);
+        }
+
+        return $out;
+    }
+
     public function create(): void
     {
         view('activities/form', [
diff --git a/templates/activities/index.php b/templates/activities/index.php
index 558a74b..329225d 100644
--- a/templates/activities/index.php
+++ b/templates/activities/index.php
@@ -1,3 +1,23 @@
+<?php
+/* 首页两个视图：默认「旅行地图」（一次旅行一枚图标，点进去就是那次旅行），
+   另一个标签是「活动列表」（每行一条：封面 + 标题简述 / 主要参与人 / 去了几个地方 /
+   经历了多长时间）。数据由 ActivityController::collectStats() 一次聚合好。 */
+$stats = $stats ?? [];
+$spots = [];
+foreach ($activities as $a) {
+    $st = $stats[(int)$a['id']] ?? null;
+    if (!$st || $st['lat'] === null || $st['lng'] === null) continue;
+    $spots[] = [
+        'id'    => (int)$a['id'],
+        'title' => (string)$a['title'],
+        'place' => (string)($st['place_main'] ?? ''),
+        'lat'   => round((float)$st['lat'], 6),
+        'lng'   => round((float)$st['lng'], 6),
+        'img'   => !empty($a['cover_image']) ? media_cover((int)$a['id']) : '',
+        'url'   => url('activities/show', ['id' => $a['id']]),
+    ];
+}
+?>
 <div class="page-header">
     <h1>活动列表</h1>
 </div>
@@ -8,23 +28,224 @@
         <a href="<?= url('activities/create') ?>" class="btn-primary">创建第一个活动</a>
     </div>
 <?php else: ?>
-    <div class="card-grid">
+
+<?php if ($spots): ?>
+<div class="route-tabs" role="tablist">
+    <button type="button" class="route-tab is-active" data-panel="home-panel-map"
+            role="tab" aria-selected="true">🗺️ 旅行地图</button>
+    <button type="button" class="route-tab" data-panel="home-panel-list"
+            role="tab" aria-selected="false">📋 活动列表</button>
+</div>
+
+<div class="route-panel" id="home-panel-map">
+    <div class="route-map home-map" id="home-map-canvas"
+         data-spots="<?= e(json_encode($spots, JSON_UNESCAPED_UNICODE)) ?>"></div>
+    <p class="route-map-hint">每一枚图标是一次旅行（落在那次旅行去过的地方的重心），点图标就进那次旅行的详情。</p>
+</div>
+
+<div class="route-panel" id="home-panel-list" hidden>
+<?php endif; ?>
+
+    <div class="act-list">
         <?php foreach ($activities as $a): ?>
-            <a href="<?= url('activities/show', ['id' => $a['id']]) ?>" class="card">
-                <?php if (!empty($a['cover_image'])): ?>
-                    <img src="<?= e(media_cover((int)$a['id'])) ?>" alt="" class="card-cover">
-                <?php else: ?>
-                    <div class="card-cover card-cover-placeholder">📸</div>
-                <?php endif; ?>
-                <div class="card-body">
+            <?php
+            $st          = $stats[(int)$a['id']] ?? null;
+            $placeCount  = (int)($st['place_count'] ?? 0);
+            $placeMain   = (string)($st['place_main'] ?? '');
+            $nodeCount   = (int)($st['node_count'] ?? 0);
+            $days        = (int)($st['days'] ?? 0);
+            $spanText    = (string)($st['span_text'] ?? '');
+            $memberCount = (int)($st['member_count'] ?? 0);
+            $members     = array_slice($st['members'] ?? [], 0, 5);
+            ?>
+            <a href="<?= url('activities/show', ['id' => $a['id']]) ?>" class="act-row">
+                <div class="act-row-cover">
+                    <?php if (!empty($a['cover_image'])): ?>
+                        <img src="<?= e(media_cover((int)$a['id'])) ?>" alt="">
+                    <?php else: ?>
+                        <div class="act-row-cover-ph">📸</div>
+                    <?php endif; ?>
+                </div>
+                <div class="act-row-body">
                     <h3><?= e($a['title']) ?></h3>
-                    <p class="muted"><?= e($a['description'] ?: '暂无简介') ?></p>
-                    <div class="meta">
-                        <span><?= (int)$a['node_count'] ?> 个节点</span>
-                        <span><?= date('Y-m-d', strtotime($a['created_at'])) ?></span>
+                    <p class="muted act-row-desc"><?= e($a['description'] ?: '暂无简介') ?></p>
+
+                    <?php if ($members): ?>
+                        <div class="act-row-members">
+                            <?php foreach ($members as $m): ?>
+                                <span class="act-member">
+                                    <?php if (!empty($m['avatar'])): ?>
+                                        <img src="<?= e($m['avatar']) ?>" alt="">
+                                    <?php else: ?>
+                                        <span class="act-member-initial"><?= e(mb_substr((string)$m['name'], 0, 1)) ?></span>
+                                    <?php endif; ?>
+                                    <span class="act-member-name"><?= e($m['name']) ?></span>
+                                </span>
+                            <?php endforeach; ?>
+                            <?php if ($memberCount > count($members)): ?>
+                                <span class="act-member-more">等 <?= $memberCount ?> 人</span>
+                            <?php endif; ?>
+                        </div>
+                    <?php endif; ?>
+
+                    <div class="meta act-row-meta">
+                        <?php if ($placeCount > 0): ?>
+                            <span>📍 <?= $placeCount ?> 个地方<?= $placeMain !== '' ? '（' . e($placeMain) . '）' : '' ?></span>
+                        <?php endif; ?>
+                        <?php if ($days > 0): ?>
+                            <span>🕒 <?= $days ?> 天<?= $spanText !== '' ? '（' . e($spanText) . '）' : '' ?></span>
+                        <?php endif; ?>
+                        <span>🧳 <?= $nodeCount ?> 个节点</span>
                     </div>
                 </div>
             </a>
         <?php endforeach; ?>
     </div>
-<?php endif; ?>
\ No newline at end of file
+
+<?php if ($spots): ?>
+</div>
+
+<script>
+(function () {
+    'use strict';
+    /* ── 标签页：地图默认打开；切回地图时重新适配视野并重排图标 ── */
+    var map = null;
+    var tabs = Array.prototype.slice.call(document.querySelectorAll('.route-tab'));
+    var panels = {
+        'home-panel-map': document.getElementById('home-panel-map'),
+        'home-panel-list': document.getElementById('home-panel-list'),
+    };
+    tabs.forEach(function (btn) {
+        btn.addEventListener('click', function () {
+            var id = btn.getAttribute('data-panel');
+            if (!panels[id]) return;
+            tabs.forEach(function (b) {
+                var on = (b === btn);
+                b.classList.toggle('is-active', on);
+                b.setAttribute('aria-selected', on ? 'true' : 'false');
+            });
+            Object.keys(panels).forEach(function (k) {
+                if (panels[k]) panels[k].hidden = (k !== id);
+            });
+            if (id === 'home-panel-map' && map) {
+                fitView();
+                relayout();
+            }
+        });
+    });
+
+    var el = document.getElementById('home-map-canvas');
+    if (!el) return;
+    if (typeof AMap === 'undefined' || window.__AMAP_ERROR) {
+        el.innerHTML = '<p class="route-map-fallback">地图脚本没有加载成功，暂时无法显示旅行地图。</p>';
+        return;
+    }
+    var spots;
+    try {
+        spots = JSON.parse(el.getAttribute('data-spots') || '[]');
+    } catch (e) {
+        return;
+    }
+    if (!spots.length) return;
+
+    /* 图标下面还挂了一行活动名，整块是 56×64 的**矩形**，所以这里按矩形判重叠。
+       （详情页那两处是纯圆标，才按中心距判 —— 形状不同判定就不同，别混用。） */
+    var MARK_W = 56, MARK_H = 64, STEP = MARK_W + 12;
+
+    function shortTitle(t) {
+        return (t && t.length > 8) ? t.slice(0, 8) + '…' : (t || '');
+    }
+    function esc(s) {
+        return String(s === null || s === undefined ? '' : s)
+            .replace(/&/g, '&amp;').replace(/</g, '&lt;')
+            .replace(/>/g, '&gt;').replace(/"/g, '&quot;');
+    }
+
+    map = new AMap.Map(el, { viewMode: '2D', zoom: 5 });
+    window.__homeMap = map;
+
+    var markers = [];
+    spots.forEach(function (s) {
+        var inner = s.img
+            ? '<img src="' + esc(s.img) + '" alt="">'
+            : '<span class="home-marker-emoji">📍</span>';
+        var tip = s.place ? s.title + '（' + s.place + '）' : s.title;
+        var html = '<div class="home-marker-wrap" title="' + esc(tip) + '">'
+            + '<div class="home-marker">' + inner + '</div>'
+            + '<div class="home-marker-label">' + esc(shortTitle(s.title)) + '</div>'
+            + '</div>';
+        /* ⚠️ position 必须是 [lng, lat] 数组：传 {lng,lat} 裸对象会让 AMap 抛错，
+           整个绘制循环当场中断（批 11 的「光秃秃地图」就是它）。 */
+        var mk = new AMap.Marker({
+            position: [s.lng, s.lat],
+            content: html,
+            anchor: 'center',
+            map: map,
+        });
+        mk.on('click', function () { window.location.href = s.url; });
+        markers.push(mk);
+    });
+
+    /* 适配视野，但**别放到街道级**：只有一次旅行（或几次都在同城）时
+       setFitView 会一路放大到 18 级，那是导航视角不是"旅行足迹"视角。
+       上限定在 11 级（能看清一座城市及其周边）。setZoom 会触发 zoomend → 自动重排。 */
+    var MAX_ZOOM = 11;
+    function fitView() {
+        if (!markers.length) return;
+        map.setFitView(null, false, [40, 40, 40, 40]);
+        if (map.getZoom() > MAX_ZOOM) map.setZoom(MAX_ZOOM);
+    }
+    fitView();
+
+    /* 图标重合（同一个城市去过好几次）时让开：没有线段可沿，就先左右、
+       再上下，按**屏幕像素**判定（缩放到"看全国"时两个城市会叠在一起）。 */
+    function place(base, placed) {
+        var cand = [{ x: 0, y: 0 }];
+        var k, m, sg;
+        for (k = 1; k <= 6; k++) {
+            m = Math.ceil(k / 2) * STEP; sg = (k % 2 === 1) ? 1 : -1;
+            cand.push({ x: m * sg, y: 0 });
+        }
+        for (k = 1; k <= 4; k++) {
+            m = Math.ceil(k / 2) * Math.round(MARK_H * 0.9); sg = (k % 2 === 1) ? 1 : -1;
+            cand.push({ x: 0, y: m * sg });
+        }
+        var hit = function (x, y) {
+            for (var j = 0; j < placed.length; j++) {
+                var q = placed[j];
+                if (Math.abs(x - q.x) < MARK_W && Math.abs(y - q.y) < MARK_H) return true;
+            }
+            return false;
+        };
+        var pick = null;
+        for (var i = 0; i < cand.length; i++) {
+            if (!hit(base.x + cand[i].x, base.y + cand[i].y)) { pick = cand[i]; break; }
+        }
+        if (!pick) pick = cand[0];
+        placed.push({ x: base.x + pick.x, y: base.y + pick.y });
+        return pick;
+    }
+
+    /* 缩放会改变图标之间的屏幕距离，所以每次缩放结束都要重排一次。
+       只改 offset，不重建标记 —— 重建会把点击事件也一起丢掉。 */
+    function relayout() {
+        var placed = [];
+        markers.forEach(function (mk) {
+            var base = null;
+            try {
+                base = map.lngLatToContainer(mk.getPosition());
+            } catch (e) {
+                base = null;
+            }
+            if (!base) return;
+            var off = place(base, placed);
+            mk.setOffset(new AMap.Pixel(off.x, off.y));
+        });
+    }
+    relayout();
+    map.on('zoomend', relayout);
+})();
+</script>
+<?php endif; ?>
+
+<?php endif; ?>