diff --git a/web/navi.css b/web/navi.css
index a81baf3..35e9fc9 100644
--- a/web/navi.css
+++ b/web/navi.css
@@ -2472,3 +2472,21 @@ html[data-theme] body:not(:has(.minimal-home)) footer > .navi-footer > a:nth-of-
 html[data-theme] body .navi-footer > .navi-quote:nth-last-of-type(2) { grid-column: 2 !important; grid-row: 1 !important; justify-self: end !important; }
 html[data-theme] body .navi-footer > .navi-quote:last-of-type { grid-column: 2 !important; grid-row: 2 !important; justify-self: end !important; }
 html[data-theme] .navi-footer { grid-template-rows: auto auto !important; grid-auto-rows: 0 !important; }
+
+/* ═══ v89：极简页左右滑动切换分组（触屏 / 触控板 / 鼠标拖拽）═══
+   touch-action 用 pan-y pinch-zoom：
+     · 竖向滚动仍由浏览器原生处理（横滑事件才交给 JS）；
+     · 保留双指缩放（不写成 pan-y，否则会禁掉 pinch-zoom，属可访问性倒退）。
+   overscroll-behavior-x: contain 抑制浏览器把横滑当成"后退/前进"。
+   拖拽期间禁止选中文字（否则鼠标横拖会拖出一片蓝色选区）。 */
+html[data-theme] .minimal-home,
+html[data-theme] .minimal-home > .item-group-container,
+html[data-theme] .minimal-home > .item-group-container > .minimal-section-inner {
+  touch-action: pan-y pinch-zoom !important;
+  overscroll-behavior-x: contain !important;
+}
+html[data-theme] .minimal-home.navi-dragging,
+html[data-theme] .minimal-home.navi-dragging * {
+  user-select: none !important;
+  -webkit-user-select: none !important;
+}
diff --git a/web/navi.js b/web/navi.js
index 7ef04bb..3d4b091 100644
--- a/web/navi.js
+++ b/web/navi.js
@@ -611,6 +611,175 @@
     }
   }
 
+
+  /* ── 极简页（/minimal）：左右滑动切换分组 ──
+     结构契约（Dashy 原生 DOM）：.minimal-headings-row > .minimal-section-heading.headings，
+     当前分组带 .selected；"切分组"= 对该元素派发一次真实 click（实测有效）。
+     三种输入：触屏 / 鼠标拖拽（pointer 事件）、触控板双指横滑（wheel 的 deltaX）。
+     边界：clamp —— 到头不动，只给一次轻微回弹提示（禁用动效时改为淡闪）。
+     动画：只做淡入淡出（不位移），避免和滚动位置/布局打架。 */
+  const SWIPE = {
+    armTouch: 10, armMouse: 16,      // 认作"横滑"的最小位移
+    fire: 56,                        // 触发切换的最小横移
+    ratio: 1.5,                      // |dx| 需大于 |dy| 的倍数，避免抢竖滑
+    suppressClick: 20,               // 超过此位移就吞掉随后的一次 click（防误开卡片）
+    wheelShown: 60, wheelIdle: 420,  // 触控板累计阈值 / 重置间隔
+    cooldown: 380
+  };
+  let swipeEl = null;              // 已绑定手势的 .minimal-home（元素重建时重绑）
+  let swipeDocBound = false;       // document 级监听只装一次
+  let swipeBusy = false, swipeAcc = 0, swipeAccAt = 0, swipeCoolUntil = 0, swipeEatClick = 0;
+
+  function swipeTabs() {
+    return Array.from(document.querySelectorAll('.minimal-headings-row > .minimal-section-heading.headings'));
+  }
+  function swipeFrameEl() {
+    return document.querySelector('.minimal-home > .item-group-container');
+  }
+  function reducedMotion() {
+    return !!(window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches);
+  }
+  function later(ms) { return new Promise((r) => setTimeout(r, ms)); }
+  function swipeEditable(node, root) {
+    for (let el = node; el && el !== root; el = el.parentElement) {
+      if (el.tagName === 'INPUT' || el.tagName === 'TEXTAREA' || el.tagName === 'SELECT' || el.isContentEditable) return true;
+    }
+    return false;
+  }
+  function swipeHScrollable(node, root) {
+    for (let el = node; el && el !== root; el = el.parentElement) {
+      if (el.clientWidth > 0 && el.scrollWidth > el.clientWidth + 4) return true;
+    }
+    return false;
+  }
+  // 到头时的一次性提示：轻微回弹（transform / 仅 8px），禁用动效时退化为淡闪
+  function swipeEdgeHint(dir) {
+    const frame = swipeFrameEl();
+    if (!frame || frame.dataset.naviHint === '1') return;
+    frame.dataset.naviHint = '1';
+    setTimeout(() => { delete frame.dataset.naviHint; }, 300);
+    if (reducedMotion()) {
+      frame.style.transition = 'opacity 110ms ease';
+      frame.style.opacity = '0.75';
+      setTimeout(() => { frame.style.opacity = ''; frame.style.transition = ''; }, 120);
+      return;
+    }
+    frame.style.transition = 'transform 150ms cubic-bezier(.22,1,.36,1)';
+    frame.style.transform = 'translateX(' + (dir > 0 ? -8 : 8) + 'px)';
+    setTimeout(() => {
+      frame.style.transform = '';
+      setTimeout(() => { frame.style.transition = ''; }, 170);
+    }, 150);
+  }
+  async function swipeSwitch(dir) {
+    if (swipeBusy || Date.now() < swipeCoolUntil) return false;
+    const tabs = swipeTabs();
+    const i = tabs.findIndex((t) => t.classList.contains('selected'));
+    if (i < 0 || tabs.length < 2) return false;
+    const j = i + dir;
+    if (j < 0 || j >= tabs.length) { swipeEdgeHint(dir); return false; }   // clamp
+    swipeBusy = true;
+    swipeCoolUntil = Date.now() + SWIPE.cooldown;
+    const frame = swipeFrameEl();
+    const fade = frame && !reducedMotion();
+    if (fade) {
+      frame.style.transition = 'opacity 90ms ease';
+      frame.style.opacity = '0.28';
+      await later(90);
+    }
+    tabs[j].click();
+    await later(70);
+    if (fade) {
+      frame.style.transition = 'opacity 150ms ease';
+      frame.style.opacity = '1';
+      setTimeout(() => { frame.style.transition = ''; frame.style.opacity = ''; }, 190);
+    }
+    swipeBusy = false;
+    return true;
+  }
+  function bindTabSwipe() {
+    const frame = document.querySelector('.minimal-home');
+    const tabs = swipeTabs();
+    // 契约自检：标签匹配不到就在 <html> 上留标记（可编程检查，不刷控制台）
+    document.documentElement.dataset.naviSwipe = (frame && tabs.length > 1) ? 'on' : 'unavailable';
+    if (!frame || swipeEl === frame) return;
+    swipeEl = frame;
+    let pid = null, x0 = 0, y0 = 0, armed = false, isMouse = false, armPx = SWIPE.armTouch;
+
+    frame.addEventListener('pointerdown', (evt) => {
+      isMouse = evt.pointerType === 'mouse';
+      if (isMouse && evt.button !== 0) return;
+      if (swipeEditable(evt.target, frame) || swipeHScrollable(evt.target, frame)) return;
+      pid = evt.pointerId; x0 = evt.clientX; y0 = evt.clientY; armed = false;
+      armPx = isMouse ? SWIPE.armMouse : SWIPE.armTouch;
+    }, { passive: true });
+
+    frame.addEventListener('pointermove', (evt) => {
+      if (pid === null || evt.pointerId !== pid) return;
+      const dx = evt.clientX - x0, dy = evt.clientY - y0;
+      if (!armed) {
+        if (Math.abs(dy) > Math.abs(dx) && Math.abs(dy) > armPx) { pid = null; return; }  // 让给竖向滚动
+        if (Math.abs(dx) < armPx) return;
+        armed = true;
+        if (isMouse) frame.classList.add('navi-dragging');
+      }
+      if (isMouse && evt.cancelable) evt.preventDefault();       // 鼠标拖拽时不选中文字
+      if (Math.abs(dx) >= SWIPE.suppressClick) swipeEatClick = Date.now() + 400;
+    });
+
+    function swipeFinish(evt) {
+      if (pid === null || evt.pointerId !== pid) return;
+      const dx = evt.clientX - x0, dy = evt.clientY - y0;
+      pid = null;
+      frame.classList.remove('navi-dragging');
+      if (!armed) return;
+      armed = false;
+      if (Math.abs(dx) >= SWIPE.fire && Math.abs(dx) > Math.abs(dy) * SWIPE.ratio) {
+        swipeSwitch(dx < 0 ? 1 : -1);                            // 向左滑 → 下一个分组
+      }
+    }
+    frame.addEventListener('pointerup', swipeFinish, { passive: true });
+    frame.addEventListener('pointercancel', () => {
+      pid = null; armed = false; frame.classList.remove('navi-dragging');
+    }, { passive: true });
+
+    // 触控板双指横滑：wheel 的 deltaX 累计到阈值即切换
+    frame.addEventListener('wheel', (evt) => {
+      const ax = Math.abs(evt.deltaX), ay = Math.abs(evt.deltaY);
+      if (ax < 2 || ax <= ay) { swipeAcc = 0; return; }
+      const now = Date.now();
+      if (now - swipeAccAt > SWIPE.wheelIdle) swipeAcc = 0;
+      swipeAccAt = now;
+      swipeAcc += evt.deltaX;
+      if (Math.abs(swipeAcc) >= SWIPE.wheelShown && !swipeBusy && now >= swipeCoolUntil) {
+        const dir = swipeAcc < 0 ? 1 : -1;
+        swipeAcc = 0;
+        swipeSwitch(dir);
+      }
+    }, { passive: true });
+
+    if (!swipeDocBound) {
+      swipeDocBound = true;
+      // 滑动后吞掉紧随的一次 click，避免误开卡片里的链接
+      document.addEventListener('click', (evt) => {
+        if (Date.now() < swipeEatClick) {
+          swipeEatClick = 0;
+          evt.preventDefault();
+          evt.stopPropagation();
+        }
+      }, true);
+      // 键盘 ←/→（可访问性）
+      document.addEventListener('keydown', (evt) => {
+        if (evt.key !== 'ArrowLeft' && evt.key !== 'ArrowRight') return;
+        if (!document.querySelector('.minimal-home')) return;
+        if (document.querySelector('.modal-overlay')) return;
+        if (swipeEditable(evt.target, document.body)) return;
+        if (swipeBusy || Date.now() < swipeCoolUntil) return;
+        swipeSwitch(evt.key === 'ArrowRight' ? 1 : -1);
+      });
+    }
+  }
+
   // 当前视图标记到 <html> 上，供 navi.css 针对工作空间做「控件收边」。
   function markView() {
     const p = location.pathname.replace(/\/+$/, '') || '/';
@@ -631,6 +800,7 @@
     seedWorkspacePane();
     hideInstallEntry();
     mountFooter();
+    bindTabSwipe();
   }
 
   if (document.readyState === 'loading') {