diff --git a/portal-nav.js b/portal-nav.js
index df9e36f..0c27104 100644
--- a/portal-nav.js
+++ b/portal-nav.js
@@ -1,4 +1,100 @@
 (() => {
+    /**
+     * ── 頁面籌備中：開關方式 ─────────────────────────────────────────
+     * ① 整個檔案先關：COMING_SOON_PAGES 列出主檔名（目前已含長卷／電子書／志源頁／演唱會／典藏／地圖等）。
+     * ② index.html 細到錨點：改 INDEX_NAV_OPEN_HASHES；列在其中的 #才可點，其餘同檔連結為籌備中。
+     * ③ 視覺：「(頁面籌備中)」由 style.css 的 ::after 在 hover／鍵盤 focus 時才顯示，
+     *    title 與 aria-label 供觸控長按／螢幕閱讀器補充說明。
+     * 要開放某連結：從對應 Set 移除檔名或補上錨點後重新整理。
+     */
+    const COMING_SOON_PAGES = new Set([
+        "chronicle.html",
+        "ssg2-ebook.html",
+        "jiwon.html",
+        "concert.html",
+        "archive.html",
+        "map.html",
+    ]);
+
+    /** 目前先開：淪陷瞬間 #origin + 子選單三項 #start / #mission / #timeline */
+    const INDEX_NAV_OPEN_HASHES = new Set(["#origin", "#start", "#mission", "#timeline"]);
+
+    function normalizePageKey(href) {
+        if (!href || href === "#") return "";
+        const core = href.split("#")[0].split("?")[0];
+        const parts = core.split("/").filter(Boolean);
+        const last = parts.length ? parts[parts.length - 1] : "";
+        return last.toLowerCase();
+    }
+
+    /** 比照原邏輯：取 href 前半與網址列檔名比對 */
+    function hrefMatchesCurrentPage(href, currentPage) {
+        if (!href || href === "#") return false;
+        const [filePart] = href.split("#");
+        const base = filePart.split("/").pop();
+        return base === currentPage;
+    }
+
+    /** 取得 #fragment（含 #）；若無錨點則回傳空字串 */
+    function anchorFromHref(href) {
+        const i = href.indexOf("#");
+        if (i < 0) return "";
+        return href.slice(i).split("?")[0];
+    }
+
+    function markLinkComingSoon(link, originalHref) {
+        const visibleTitle = link.textContent.trim();
+        link.setAttribute("data-coming-soon", "true");
+        link.setAttribute("aria-disabled", "true");
+        link.setAttribute("title", "頁面籌備中");
+        link.setAttribute("aria-label", `${visibleTitle}（頁面籌備中）`);
+        if (!link.dataset.originalHref) {
+            link.dataset.originalHref = originalHref;
+        }
+
+        link.setAttribute("href", "#");
+    }
+
+    function linkShouldBeComingSoon(href, pageKey, pageKeysSoon) {
+        if (pageKeysSoon.has(pageKey)) {
+            return true;
+        }
+        if (pageKey === "index.html") {
+            const frag = anchorFromHref(href);
+            return !INDEX_NAV_OPEN_HASHES.has(frag);
+        }
+        return false;
+    }
+
+    /** 將籌備中規則套用至單一導覽列 */
+    function applyComingSoonToNav(nav) {
+        const pageKeysSoon = new Set(
+            [...COMING_SOON_PAGES].map((p) => normalizePageKey(String(p))).filter(Boolean),
+        );
+
+        nav.querySelectorAll('a[href]').forEach((link) => {
+            if (link.classList.contains("logo")) return;
+
+            const href = link.getAttribute("href");
+            if (!href || href === "#") return;
+
+            const pageKey = normalizePageKey(href);
+            if (!pageKey) return;
+
+            if (!linkShouldBeComingSoon(href, pageKey, pageKeysSoon)) return;
+
+            markLinkComingSoon(link, href);
+        });
+
+        nav.querySelectorAll(":scope > ul > li").forEach((li) => {
+            const trigger = li.querySelector(":scope > a[href]");
+            if (!trigger || trigger.classList.contains("logo")) return;
+            if (trigger.getAttribute("data-coming-soon") === "true") {
+                li.classList.add("coming-soon");
+            }
+        });
+    }
+
     /** 全站導覽 HTML — 僅修改此字串即可同步所有頁面 */
     const PORTAL_NAV_INNER_HTML = `
 <a class="logo" href="index.html"><img src="./img/logov.svg" alt="SECHSKIES Logo"></a>
@@ -42,6 +138,7 @@
 
     document.querySelectorAll("nav.portal-nav[data-portal-nav]").forEach((nav) => {
         nav.innerHTML = PORTAL_NAV_INNER_HTML;
+        applyComingSoonToNav(nav);
     });
 
     const navs = Array.from(document.querySelectorAll(".portal-nav"));
@@ -53,11 +150,13 @@
         const items = Array.from(nav.querySelectorAll("li"));
         const soonLinks = Array.from(nav.querySelectorAll('a[data-coming-soon="true"]'));
 
+        const blockNavigation = (event) => {
+            event.preventDefault();
+            event.stopPropagation();
+        };
         soonLinks.forEach((link) => {
-            link.addEventListener("click", (event) => {
-                event.preventDefault();
-                event.stopPropagation();
-            });
+            link.addEventListener("click", blockNavigation);
+            link.addEventListener("auxclick", blockNavigation);
         });
 
         items.forEach((item) => {
@@ -84,9 +183,18 @@
             trigger.addEventListener("focus", openItem);
 
             trigger.addEventListener("click", (event) => {
+                const isSoon = trigger.getAttribute("data-coming-soon") === "true";
+
                 if (window.innerWidth <= 1024) {
                     event.preventDefault();
-                    item.classList.toggle("open");
+                    if (!isSoon && !item.classList.contains("coming-soon")) {
+                        item.classList.toggle("open");
+                    }
+                    return;
+                }
+
+                if (isSoon) {
+                    event.preventDefault();
                 }
             });
         });
@@ -99,10 +207,10 @@
 
         const topLevelLinks = Array.from(nav.querySelectorAll(":scope > ul > li > a[href]"));
         topLevelLinks.forEach((link) => {
-            const href = link.getAttribute("href");
-            if (!href) return;
-            const [file] = href.split("#");
-            if (file === currentPage) {
+            const fallback = link.getAttribute("href");
+            const source = link.dataset.originalHref || fallback;
+            if (!source || source === "#") return;
+            if (hrefMatchesCurrentPage(source, currentPage)) {
                 link.classList.add("nav-current");
             }
         });
diff --git a/style.css b/style.css
index 03db663..4497834 100644
--- a/style.css
+++ b/style.css
@@ -150,63 +150,77 @@ nav a:hover {
 }
 
 .portal-nav>ul>li.coming-soon>a {
-    position: relative;
-    padding-bottom: 20px;
-    color: #c8a66a !important;
     cursor: not-allowed;
-}
-
-.portal-nav>ul>li.coming-soon>a::after {
-    content: "建置中";
-    position: absolute;
-    left: 50%;
-    bottom: -8px;
-    transform: translateX(-50%);
-    white-space: nowrap;
-    line-height: 1;
-    font-size: 0.72rem;
-    letter-spacing: 0.5px;
-    color: #fff;
-    background: #a66a2d;
-    border-radius: 999px;
-    padding: 4px 10px;
+    opacity: 0.82;
+    color: rgba(212, 196, 150, 0.95);
 }
 
 .portal-nav a[data-coming-soon="true"] {
     cursor: not-allowed;
-    opacity: 0.72;
+    opacity: 0.82;
+    position: relative;
+}
+
+.portal-nav a[data-coming-soon="true"]::after {
+    content: "(頁面籌備中)";
+    position: absolute;
+    z-index: 120;
+    white-space: nowrap;
+    font-size: 0.72rem;
+    font-weight: 600;
+    letter-spacing: 0.02em;
+    color: #6a4818;
+    background: #fff9e6;
+    padding: 5px 11px;
+    border-radius: 8px;
+    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.14);
+    opacity: 0;
+    pointer-events: none;
+    transition: opacity 0.16s ease;
+}
+
+.portal-nav>ul>li>a[data-coming-soon="true"]::after {
+    left: 50%;
+    top: calc(100% + 4px);
+    transform: translateX(-50%);
+}
+
+.portal-nav .portal-submenu a[data-coming-soon="true"]::after {
+    left: 50%;
+    top: calc(100% + 2px);
+    transform: translateX(-50%);
+}
+
+.portal-nav>ul>li>a[data-coming-soon="true"]:hover,
+.portal-nav>ul>li>a[data-coming-soon="true"]:focus-visible {
+    color: rgba(212, 196, 150, 0.95);
+}
+
+.portal-nav .portal-submenu a[data-coming-soon="true"]:hover,
+.portal-nav .portal-submenu a[data-coming-soon="true"]:focus-visible {
+    background-color: transparent;
+    color: #5f5f5f;
+}
+
+@media (hover: hover) {
+
+    .portal-nav a[data-coming-soon="true"]:hover::after,
+    .portal-nav a[data-coming-soon="true"]:focus-visible::after {
+        opacity: 1;
+    }
+}
+
+@media (hover: none) {
+    .portal-nav a[data-coming-soon="true"]:active::after {
+        opacity: 1;
+        transition: opacity 0.08s ease;
+    }
 }
 
 .portal-nav li.coming-soon>.portal-submenu {
     display: none !important;
 }
 
-.portal-nav .portal-submenu a[data-coming-soon="true"] {
-    position: relative;
-}
-
-.portal-nav .portal-submenu a[data-coming-soon="true"]::after {
-    content: "建置中";
-    position: absolute;
-    top: 50%;
-    right: -78px;
-    transform: translateY(-50%);
-    font-size: 0.72rem;
-    letter-spacing: 0.5px;
-    color: #fff;
-    background: #a66a2d;
-    border-radius: 999px;
-    padding: 4px 10px;
-    opacity: 0;
-    pointer-events: none;
-    transition: opacity 0.18s ease;
-}
-
-.portal-nav .portal-submenu a[data-coming-soon="true"]:hover::after,
-.portal-nav .portal-submenu a[data-coming-soon="true"]:focus-visible::after {
-    opacity: 1;
-}
-
 .portal-nav li:hover>.portal-submenu,
 .portal-nav li:focus-within>.portal-submenu,
 .portal-nav li.open>.portal-submenu {
@@ -938,6 +952,17 @@ footer {
     color: #3a300a;
 }
 
+.map-page .portal-nav>ul>li>a[data-coming-soon="true"]:hover,
+.map-page .portal-nav>ul>li>a[data-coming-soon="true"]:focus-visible {
+    color: rgba(212, 196, 150, 0.95);
+}
+
+.map-page .portal-nav .portal-submenu a[data-coming-soon="true"]:hover,
+.map-page .portal-nav .portal-submenu a[data-coming-soon="true"]:focus-visible {
+    background-color: transparent;
+    color: #5f5f5f;
+}
+
 .map-archive-header {
     width: 100%;
     height: 100vh;