/* ═══════════════════════════════════════════════════════════════════════
   PAAS Base System - portal-base.css (全站基礎結構與模組樣式庫)

   【分類導航索引】
   01. :root 全域預設 CSS 變數定義 (Default CSS Variables)
   02. 全域 Reset 與版面配置 (Global Reset & Typography)
   03. Header 頁首結構與品牌 Logo (.portal-header, .portal-logo)
   04. 登入身份選單與 User Dropdown (.portal-user-btn, .portal-user-drop, .pud-*)
   05. 模組麵包屑返回列 (.pm-back-bar)
   06. Main 主內容容器 (.portal-main)
   07. Footer 頁尾區塊與主題切換器 (.portal-footer, .pf-grid, .pf-bottom, .pf-theme-sw)
   08. Portal 首頁模組卡片 (.portal-hero, .portal-modules-grid, .portal-module-card)
   09. 企業級模組卡片 (.portal-enterprise-card, .pec-*)
   10. Mega Navigation 桌面導覽主選單 (.portal-nav, .portal-mega-drop, .portal-sub-drop)
   11. 語系與主題選單 (.portal-lang-sw, .portal-theme-sw)
   12. pm-* 共用模組頁面樣式庫 (Hero, Feature Card, Buttons, Item Cards, FAQ, Stat, CTA)
   13. 手機版漢堡選單與全螢幕 Overlay (.portal-hamburger, .portal-mobile-overlay, .pmo-*)
   14. 全站載入遮罩 (#portal-loader)
   15. Cookie 隱私權通知列 (#cookie-bar)
   16. 懸浮按鈕與手機版底部工具列 (#portal-fab, .fab-btn)
   17. 登入 Modal 彈窗 (.portal-login-modal, .plm-*)
   18. Profile 個人資料頁專用樣式 (.prf-*)
   19. 響應式側邊抽屜與滿版選單核心 (.portal-menu-backdrop)
   20. 偶數區塊自動變色 (淺綠色/次要襯底色) 與奇數區塊維持白底
   21. 富文本編輯器內容樣式保護層 (修正版：徹底釋放行內樣式與繼承鏈)
   ═══════════════════════════════════════════════════════════════════════ */

/* ───────────────────────────────────────────────────────────────────────
   01. :root 全域預設 CSS 變數定義 (Default CSS Variables)
   ─────────────────────────────────────────────────────────────────────── */

/* 1. 預設模式（淺色模式 Light Mode） */
:root,
html[data-theme="light"] {
    --pt-bg: #f8fafc;
    /* 帶有透明度 (Alpha) 的 Header 底色 */
    --pt-header-bg: rgba(255, 255, 255, 0.85);
    /* 淺色 85% 不透明白 */
    /* 全站大背景 */
    --pt-surface: #ffffff;
    /* 卡片、Header、Dropdown 表面底色 */
    --pt-surface-sub: #f1f5f9;
    /* 次要區塊底色 */
    --pt-border: #e2e8f0;
    /* 細緻灰邊框 */

    --pt-title-main: #0f172a;
    /* 主要大標題 */
    --pt-text: #1e293b;
    /* 一般內文文字 */
    --pt-text-muted: #64748b;
    /* 次要說明文字 */

    --pt-accent: #FF491B;
    /* 品牌亮橘焦點色 */
    --pt-accent-lt: rgba(255, 73, 27, 0.1);

    --pt-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    --pt-trans: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --pt-radius: 12px;
}

/* 2. 深色模式 (Dark Mode 反轉變數) */
html[data-theme="dark"] {
    --pt-bg: #0f172a;
    /* 帶有透明度 (Alpha) 的 Header 底色 */
    --pt-header-bg: rgba(22, 34, 56, 0.85);
    /* 深色 85% 不透明深藍/黑 */
    /* 深藍黑大背景 */
    --pt-surface: #1e293b;
    /* 深色卡片/Header 面板底色 */
    --pt-surface-sub: #334155;
    /* 深色次要區塊 */
    --pt-border: #334155;
    /* 深色邊框 */

    --pt-title-main: #f8fafc;
    /* 高對比亮白標題 */
    --pt-text: #e2e8f0;
    /* 淺灰內文文字 */
    --pt-text-muted: #94a3b8;
    /* 淡灰說明文字 */

    --pt-accent: #ff6b4a;
    /* 深色模式下的柔和亮橘 */
    --pt-accent-lt: rgba(255, 107, 74, 0.2);

    --pt-shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
}

/* ───────────────────────────────────────────────────────────────────────
   02. 全域 Reset 與版面配置 (Global Reset & Typography)
   ─────────────────────────────────────────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    background: var(--pt-bg);
    color: var(--pt-text);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6,
.portal-title,
.section-title {
    color: var(--pt-title-main);
    margin-top: 0;
}

p,
span,
li,
td {
    color: var(--pt-text);
}

.text-muted,
.portal-text-muted {
    color: var(--pt-text-muted);
}

/* ───────────────────────────────────────────────────────────────────────
   03. Header 頁首結構與品牌 Logo (.portal-header, .portal-logo)
   ─────────────────────────────────────────────────────────────────────── */
.portal-header {
    background: var(--pt-header-bg);
    border-bottom: 1px solid var(--pt-header-border);
    padding: .75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 10px rgba(0, 0, 0, .15);
    position: sticky;
    top: 0;
    z-index: 1000;
    /* 指定綁定 --pt-surface 變數，強制覆蓋 transparent */
    /*  background-color: var(--pt-surface) !important;
    border-bottom: 1px solid var(--pt-border); */
    backdrop-filter: blur(10px);
    /* 毛玻璃模糊效果 */
    transition: background-color var(--pt-trans), border-color var(--pt-trans);
}

.portal-logo {
    text-decoration: none !important;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    border-bottom: none !important;
    color: var(--pt-header-text);
}

.portal-logo:hover {
    opacity: .85;
    text-decoration: none !important;
    border-bottom: none !important;
    color: var(--pt-header-hover);
}

.portal-logo-img {
    height: 36px;
    width: auto;
    max-width: 160px;
    object-fit: contain;
}


.portal-header-actions {
    display: flex;
    align-items: center;
    gap: .75rem;
    flex-shrink: 0;
}

/* ───────────────────────────────────────────────────────────────────────
   04. 登入身份選單與 User Dropdown (.portal-user-btn, .portal-user-drop, .pud-*)
   ─────────────────────────────────────────────────────────────────────── */
.portal-user-btn {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    background: var(--pt-header-btn-bg);
    border: 1px solid var(--pt-header-border);
    border-radius: 999px;
    padding: .35rem .85rem .35rem .5rem;
    color: var(--pt-header-text);
    font-size: .85rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--pt-trans), border-color var(--pt-trans), color var(--pt-trans);
    white-space: nowrap;
    position: relative;
}

.portal-user-btn:hover {
    background: var(--pt-header-btn-hover);
    color: var(--pt-header-hover);
}

.portal-user-avatar {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--pt-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .8rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.portal-user-drop {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 220px;
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: 14px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, .16);
    padding: .4rem 0;
    z-index: 1300;

    /* 隱藏狀態 - 使用 opacity 和 visibility */
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1),
        visibility 0.2s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 打開狀態 */
.portal-user-drop.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transform: translateX(-50%) translateY(0);
    display: block;

    /* 讓下拉選單緊貼按鈕下方，不留空隙 */
    animation: portalFadeInDown 0.05s ease forwards;
}

.pud-header {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .75rem 1rem;
}

.pud-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--pt-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .95rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.pud-info {
    flex: 1;
    min-width: 0;
}

.pud-name {
    font-size: .88rem;
    font-weight: 700;
    color: var(--pt-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pud-email {
    font-size: .75rem;
    color: var(--pt-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: .1rem;
}

.pud-divider {
    height: 1px;
    background: var(--pt-border);
    margin: .3rem 0;
}

.portal-user-drop-name {
    padding: .6rem 1rem .4rem;
    font-size: .78rem;
    font-weight: 700;
    color: var(--pt-text-muted);
    letter-spacing: .3px;
    text-transform: uppercase;
    border-bottom: 1px solid var(--pt-border);
    margin-bottom: .35rem;
}

.portal-user-drop a,
.portal-user-drop button {
    display: flex;
    align-items: center;
    gap: .5rem;
    width: 100%;
    padding: .48rem 1rem;
    font-size: .85rem;
    color: var(--pt-text);
    background: none;
    border: none;
    text-decoration: none;
    cursor: pointer;
    transition: background var(--pt-trans), color var(--pt-trans);
    text-align: left;
}

.portal-user-drop a:hover,
.portal-user-drop button:hover {
    background: var(--pt-accent-lt);
    color: var(--pt-accent);
}

.portal-user-drop .drop-logout:hover {
    background: #fee2e2;
    color: #dc2626;
}

/* ───────────────────────────────────────────────────────────────────────
   05. 模組麵包屑返回列 (.pm-back-bar)
   ─────────────────────────────────────────────────────────────────────── */
.pm-back-bar {
    background: var(--pt-header-bg);
    border-top: 1px solid var(--pt-header-border);
    border-bottom: 1px solid var(--pt-border);
    padding: .4rem 1.5rem;
    display: flex;
    align-items: center;
    gap: .4rem;
    font-size: .8rem;
}

.pm-back-bar a {
    color: var(--pt-header-text);
    opacity: 0.8;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: .25rem;
    transition: color var(--pt-trans), opacity var(--pt-trans);
}

.pm-back-bar a:hover {
    color: var(--pt-header-hover);
    opacity: 1;
}

.pm-back-bar .pm-sep {
    color: var(--pt-header-text);
    opacity: 0.4;
}

.pm-back-bar .pm-current {
    color: var(--pt-header-text);
    font-weight: 600;
    opacity: 1;
}

/* ───────────────────────────────────────────────────────────────────────
   06. Main 主內容容器 (.portal-main)
   ─────────────────────────────────────────────────────────────────────── */
.portal-main {
    flex: 1;
}

/* ───────────────────────────────────────────────────────────────────────
   07. Footer 頁尾區塊與主題切換器 (.portal-footer, .pf-grid, .pf-bottom, .pf-theme-sw)
   ─────────────────────────────────────────────────────────────────────── */
.portal-footer {
    background: var(--pt-footer-bg);
    color: var(--pt-footer-muted);
    font-size: .82rem;
    margin-bottom: 0;
    border-top: 1px solid var(--pt-footer-border);
    transition: background-color var(--pt-trans), color var(--pt-trans);
}

.portal-footer a {
    color: var(--pt-footer-muted);
    text-decoration: none;
    transition: color var(--pt-trans);
}

.portal-footer a:hover {
    color: var(--pt-footer-text);
}

.pf-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2.5rem;
    padding: 2.2rem 2rem 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.pf-grid .portal-logo {
    padding-top: .5rem;
}

.pf-logo-img {
    height: 48px;
    width: auto;
    max-width: 160px;
    object-fit: contain;
}

.pf-brand-desc {
    font-size: .9rem;
    color: var(--pt-footer-muted);
    line-height: 1.7;
    margin: .6rem 0 1rem;
}

.pf-col-title {
    font-size: .9rem;
    font-weight: 700;
    letter-spacing: .7px;
    text-transform: uppercase;
    color: var(--pt-footer-text);
    margin: .5rem 0;
}

.pf-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pf-col ul li+li {
    margin-top: .38rem;
}

.pf-col ul li a {
    font-size: .9rem;
}

.pf-contact-item {
    font-size: .8rem;
    color: var(--pt-footer-muted);
    padding: .5rem 0;
    display: flex;
    align-items: center;
    gap: .4rem;
    line-height: 1.4;
}

.pf-bottom {

    margin: 0 auto;
    border-top: 1px solid var(--pt-footer-border);
    padding: .8rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .4rem;
    font-size: .75rem;
    color: var(--pt-footer-muted);
}

.pf-social-links {
    display: flex;
    gap: .6rem;
    margin-top: .2rem;
}

.pf-social-links a {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid var(--pt-footer-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .85rem;
    color: var(--pt-footer-muted);
    transition: background var(--pt-trans), color var(--pt-trans), border-color var(--pt-trans);
}

.pf-social-links a:hover {
    background: var(--pt-accent);
    color: #fff;
    border-color: transparent;
}

/* 頁尾佈景切換器 */
.pf-theme-sw {
    display: flex;
    align-items: center;
    gap: .28rem;
}

.pf-theme-sw-label {
    color: var(--pt-footer-muted);
    font-size: .68rem;
    margin-right: .1rem;
    white-space: nowrap;
}

.pf-theme-btn {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid var(--pt-footer-border);
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
    transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
}

.pf-theme-btn:hover {
    transform: scale(1.25);
    border-color: var(--pt-footer-text);
}

.pf-theme-btn.active {
    border-color: var(--pt-footer-text);
    transform: scale(1.2);
    box-shadow: 0 0 0 2px var(--pt-accent-lt);
}

@media (max-width: 860px) {
    .pf-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1.75rem;
        padding: 2rem 1.5rem 1.5rem;
    }

    .pf-bottom {
        padding: .8rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .pf-grid {
        display: none;
    }

    .portal-footer {
        padding: 0;
        position: fixed;
        bottom: 70px;
        left: 0;
        right: 0;
        z-index: 1000;
        width: 100%;
        background: var(--pt-footer-bg);
        max-height: 200px;
        overflow-y: auto;
        border-top: 1px solid var(--pt-footer-border);
    }

    .pf-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-direction: row;
        padding: 0.8rem 1rem;
        gap: 0.6rem;
        font-size: .75rem;
        border-top: none;
        background: var(--pt-footer-bg);
        flex-wrap: nowrap;
    }

    .pf-theme-sw {
        display: none;
    }

    .pf-theme-sw-label {
        display: none;
    }

    .pf-bottom>span {
        flex: 0 0 auto;
        text-align: left;
        color: var(--pt-footer-muted);
        font-size: .7rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        min-width: 140px;
    }

    .pf-bottom>a {
        flex: 0 0 auto;
        white-space: nowrap;
        padding: 0.5rem 0.8rem;
        border-radius: 6px;
        background: var(--pt-header-btn-bg);
        color: var(--pt-footer-text);
        display: inline-block !important;
        border: 1px solid var(--pt-footer-border);
        font-weight: 500;
        font-size: .7rem;
        transition: all .2s ease;
        text-decoration: none;
        text-align: center;
    }

    .pf-bottom>a:hover {
        background: var(--pt-header-btn-hover);
        color: var(--pt-accent);
        border-color: var(--pt-accent);
    }

    .portal-main {
        padding-bottom: calc(280px + env(safe-area-inset-bottom));
    }
}

/* ───────────────────────────────────────────────────────────────────────
   08. Portal 首頁模組卡片 (.portal-hero, .portal-modules-grid, .portal-module-card)
   ─────────────────────────────────────────────────────────────────────── */
.portal-hero {
    background: linear-gradient(135deg, var(--pt-hero-from) 0%, var(--pt-hero-to) 100%);
    padding: 3.5rem 1rem 3rem;
    text-align: center;
}

.portal-hero h1 {
    color: #fff;
    font-size: clamp(1.5rem, 4vw, 2.2rem);
    font-weight: 800;
    margin-bottom: .5rem;
    letter-spacing: -.5px;
}

.portal-hero p {
    color: rgba(255, 255, 255, .8);
    font-size: 1rem;
    margin: 0;
}

.portal-hero-icon {
    font-size: 3rem;
    color: rgba(255, 255, 255, .9);
    margin-bottom: 1rem;
    display: block;
}

.portal-modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 1.1rem;
}

.portal-module-card {
    display: flex;
    flex-direction: column;
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: var(--pt-radius);
    overflow: hidden;
    box-shadow: var(--pt-shadow);
    text-decoration: none !important;
    color: inherit !important;
    transition: transform var(--pt-trans), box-shadow var(--pt-trans);
    height: 100%;
    position: relative;
}

.portal-module-card.is-link:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 28px rgba(0, 0, 0, .13);
}

.portal-module-card.is-coming-soon {
    opacity: .5;
    cursor: default;
}

.module-icon-wrap {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--pt-accent-lt);
}

.module-icon-wrap i {
    font-size: 2.4rem;
    color: var(--pt-accent);
}

.module-body {
    padding: .95rem 1.1rem .65rem;
    flex: 1;
}

.module-body h3 {
    font-size: .9rem;
    font-weight: 700;
    margin-bottom: .28rem;
    color: var(--pt-title-main);
}

.module-body p {
    font-size: .78rem;
    color: var(--pt-text-muted);
    margin: 0;
    line-height: 1.45;
}

.module-footer {
    padding: .6rem 1.1rem;
    border-top: 1px solid var(--pt-border);
    font-size: .78rem;
    font-weight: 600;
    color: var(--pt-accent);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: .3rem;
}

.module-footer .bi {
    transition: transform var(--pt-trans);
}

.portal-module-card.is-link:hover .module-footer .bi {
    transform: translateX(4px);
}

.coming-badge {
    position: absolute;
    top: .5rem;
    right: .5rem;
    background: rgba(0, 0, 0, .38);
    color: #fff;
    font-size: .67rem;
    font-weight: 600;
    padding: .12rem .48rem;
    border-radius: 20px;
    letter-spacing: .3px;
}

/* ───────────────────────────────────────────────────────────────────────
   09. 企業級模組卡片 (.portal-enterprise-card, .pec-*)
   ─────────────────────────────────────────────────────────────────────── */
.portal-enterprise-card {
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: var(--pt-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: box-shadow var(--pt-trans), transform var(--pt-trans);
}

.portal-enterprise-card:not(.is-coming-soon):hover {
    box-shadow: 0 8px 24px var(--pt-shadow);
    transform: translateY(-3px);
}

.portal-enterprise-card.is-coming-soon {
    opacity: .55;
}

.pec-banner {
    position: relative;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    color: rgba(255, 255, 255, .95);
    background: linear-gradient(135deg, var(--pt-hero-from) 0%, var(--pt-hero-to) 100%);
}

.pec-badge-plan,
.pec-badge-soon {
    position: absolute;
    top: .5rem;
    right: .6rem;
    font-size: .67rem;
    font-weight: 700;
    padding: .15rem .5rem;
    border-radius: 20px;
    letter-spacing: .4px;
}

.pec-badge-plan {
    background: rgba(255, 255, 255, .22);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .35);
}

.pec-badge-soon {
    background: rgba(0, 0, 0, .3);
    color: #fff;
}

.pec-body {
    padding: 1.1rem 1.25rem .75rem;
    flex: 1;
}

.pec-body h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--pt-title-main);
    margin-bottom: .35rem;
}

.pec-body p {
    font-size: .82rem;
    color: var(--pt-text-muted);
    margin-bottom: .5rem;
    line-height: 1.55;
}

.pec-meta {
    font-size: .75rem;
    color: var(--pt-accent);
    font-weight: 600;
}

.pec-footer {
    padding: .75rem 1.25rem 1rem;
    border-top: 1px solid var(--pt-border);
    display: flex;
    gap: .5rem;
}

.pec-btn-detail,
.pec-btn-contact {
    flex: 1;
    text-align: center;
    padding: .4rem .5rem;
    border-radius: calc(var(--pt-radius) - 4px);
    font-size: .78rem;
    font-weight: 600;
    text-decoration: none;
    transition: opacity var(--pt-trans);
}

.pec-btn-detail:hover,
.pec-btn-contact:hover {
    opacity: .8;
}

.pec-btn-detail {
    background: var(--pt-accent-lt);
    color: var(--pt-accent);
    border: 1px solid var(--pt-accent);
}

.pec-btn-contact {
    background: var(--pt-accent);
    color: #fff;
}

.pec-btn-disabled {
    flex: 1;
    text-align: center;
    padding: .4rem .5rem;
    border-radius: calc(var(--pt-radius) - 4px);
    font-size: .78rem;
    font-weight: 600;
    color: var(--pt-text-muted);
    background: var(--pt-border);
}

/* ───────────────────────────────────────────────────────────────────────
   10. Mega Navigation 桌面導覽主選單 (多層級遞迴結構與變數驅動)
   ─────────────────────────────────────────────────────────────────────── */

/* 導覽容器 */
.portal-nav-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .15rem;
    flex: 1;
    min-width: 0;
    position: relative;
}

.portal-nav {
    display: flex;
    align-items: center;
    gap: .15rem;
    overflow: visible;
    flex: 0 1 auto;
    min-width: 0;
}

/* 第一層項目容器 */
.portal-nav-item {
    position: relative;
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

/* 第一層按鈕與連結 */
.portal-nav-btn,
.portal-nav-link {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .42rem .85rem;
    background: transparent;
    border: none;
    color: var(--pt-header-text);
    font-size: .84rem;
    font-weight: 600;
    border-radius: var(--pt-radius, 8px);
    cursor: pointer;
    transition: background var(--pt-trans), color var(--pt-trans);
    white-space: nowrap;
    text-decoration: none;
}

.portal-nav-btn:hover,
.portal-nav-btn:focus,
.portal-nav-link:hover,
.portal-nav-link.active {
    background: var(--pt-header-btn-hover, var(--pt-accent-lt));
    color: var(--pt-header-hover, var(--pt-accent));
}

/* ──────────────── 第一層下拉選單 (第二層容器) ──────────────── */
.portal-mega-drop {
    position: absolute;
    top: calc(100% + .4rem);
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    min-width: 180px;
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: var(--pt-radius, 10px);
    box-shadow: var(--pt-shadow);
    padding: .45rem;
    z-index: 1100;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--pt-trans), visibility var(--pt-trans), transform var(--pt-trans);
}

.portal-nav-item:hover>.portal-mega-drop,
.portal-nav-item.open>.portal-mega-drop {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    display: block;
}

/* ──────────────── 通用子層項目與多層級遞迴 (2層、3層、4層...) ──────────────── */
.portal-sub-item {
    position: relative;
    width: 100%;
}

/* 統一圖示容器尺寸，確保有無圖示的所有文字 100% 齊邊 */
.nav-icon-box {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    min-width: 20px;
    margin-right: 0.5rem;
    font-size: 1rem;
    color: var(--pt-accent);
}

/* 下拉項目超連結與文字容器 */
.mega-link {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    padding: 0.55rem 0.85rem !important;
    border-radius: calc(var(--pt-radius, 8px) - 2px) !important;
    text-decoration: none !important;
    color: var(--pt-title-main) !important;
    font-size: 0.88rem !important;
    font-weight: 500 !important;
    line-height: 1.4 !important;
    cursor: pointer;
    transition: background var(--pt-trans), color var(--pt-trans) !important;
    width: 100%;
}

.mega-link .nav-text-label {
    color: inherit !important;
}

/* 滑入子層項目的背景與文字高亮 (完全套用主題變數) */
.mega-link:hover,
.mega-link.active,
.portal-sub-item:hover>.mega-link {
    background-color: var(--pt-accent-lt) !important;
    color: var(--pt-accent) !important;
}

/* ──────────────── 多層級向右展開子選單容器 (Level >= 3) ──────────────── */
.portal-sub-drop {
    position: absolute !important;
    top: -4px !important;
    /* 與父項目頂部齊邊 */
    left: 100% !important;
    /* 緊貼父選單右側 */
    margin-left: 0.35rem !important;
    min-width: 180px !important;
    background: var(--pt-surface) !important;
    border: 1px solid var(--pt-border) !important;
    border-radius: var(--pt-radius, 10px) !important;
    box-shadow: var(--pt-shadow) !important;
    padding: 0.45rem !important;
    z-index: 1200 !important;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-6px);
    transition: opacity var(--pt-trans), visibility var(--pt-trans), transform var(--pt-trans);
}

/* 感應橋樑：防止滑鼠移動至子層時斷開 */
.portal-sub-drop::before {
    content: "";
    position: absolute;
    top: 0;
    left: -10px;
    width: 10px;
    height: 100%;
}

/* 任意深度的子層 Hover 觸發向右展開 */
.portal-sub-item.has-sub:hover>.portal-sub-drop {
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateX(0) !important;
}

/* 更多選單 (More Dropdown) */
.portal-nav-more-btn {
    display: none;
    align-items: center;
    gap: .3rem;
    background: var(--pt-header-btn-bg, transparent);
    border: 1px solid var(--pt-border);
    border-radius: 20px;
    color: var(--pt-header-text);
    font-size: .82rem;
    font-weight: 600;
    padding: .32rem .8rem;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
    transition: background var(--pt-trans), color var(--pt-trans);
    position: relative;
}

.portal-nav-more-btn.visible {
    display: inline-flex;
}

.portal-nav-more-drop {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    left: auto;
    min-width: 220px;
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: var(--pt-radius, 12px);
    box-shadow: var(--pt-shadow);
    padding: 1rem;
    z-index: 1200;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--pt-trans), visibility var(--pt-trans), transform var(--pt-trans);
}

.portal-nav-more-drop.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1.5rem;
}

/* ───────────────────────────────────────────────────────────────────────
   11. 語系與主題選單 (.portal-lang-sw, .portal-theme-sw)
   ─────────────────────────────────────────────────────────────────────── */
.portal-lang-sw,
.portal-theme-sw {
    position: relative;
    display: inline-flex;
    /* 加入微小的底部延伸 Padding，消除按鈕與下拉選單之間的懸空斷層 */
    padding-bottom: 8px;
    margin-bottom: -8px;
}

.portal-lang-btn,
.portal-theme-btn {
    background: transparent;
    border: 1px solid var(--pt-border);
    color: var(--pt-header-text);
    padding: .4rem .75rem;
    border-radius: 8px;
    font-size: .85rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    white-space: nowrap;
    transition: border-color var(--pt-trans), color var(--pt-trans), background var(--pt-trans);
}

.portal-lang-btn:hover,
.portal-theme-btn:hover,
.portal-lang-sw.open>.portal-lang-btn,
.portal-theme-sw.open>.portal-theme-btn {
    border-color: var(--pt-accent);
    color: var(--pt-accent);
    background: var(--pt-accent-lt);
}

.portal-lang-drop,
.portal-theme-drop {
    display: none;
    position: absolute;
    top: calc(100% + .4rem);
    right: 0;
    min-width: 170px;
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: var(--pt-radius);
    box-shadow: var(--pt-shadow);
    padding: .4rem 0;
    z-index: 1020;
    top: calc(100% + 2px) !important;
}

/* 建立隱形感應橋樑，防止滑鼠滑落斷開 */
.portal-theme-drop::before {
    content: "";
    position: absolute;
    top: -10px;
    left: 0;
    right: 0;
    height: 10px;
    background: transparent;
}

/* 下拉選單開啟動畫 */
.portal-lang-sw.open>.portal-lang-drop,
.portal-theme-sw.open>.portal-theme-drop {
    display: block;
    /* 讓下拉選單緊貼按鈕下方，不留空隙 */
    animation: portalFadeInDown 0.05s ease forwards;

    /*animation: portalFadeInDown 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    /* cubic-bezier動畫的效果是先慢後快再慢，模擬自然的下拉感覺，各參數為
       (0.4, 0, 0.2, 1) 分別代表起始速度、加速度、減速度、結束速度 */
}

.portal-lang-item,
.portal-theme-item {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .5rem 1rem;
    color: var(--pt-text);
    text-decoration: none !important;
    font-size: .85rem;
    font-weight: 500;
    transition: background var(--pt-trans), color var(--pt-trans);
}

.portal-lang-item:hover,
.portal-theme-item:hover {
    background: var(--pt-accent-lt);
    color: var(--pt-accent);
}

/* 選取中狀態 (.active) */
.portal-lang-item.active,
.portal-theme-item.active {
    background: var(--pt-accent-lt);
    color: var(--pt-accent);
    font-weight: 700;
}


/* ── 2. 手機版抽屜工具欄 (Mobile Drawer Switchers) ──────────────────── */
.pmo-tools-bar {
    padding: .75rem 1.25rem;
    border-bottom: 1px solid var(--pt-border);
    background: var(--pt-surface);
}

.pmo-lang-sw,
.pmo-theme-sw {
    position: relative;
}

.pmo-lang-btn,
.pmo-theme-btn {
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    color: var(--pt-text);
    padding: .5rem .85rem;
    border-radius: 8px;
    font-size: .85rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: .4rem;
    transition: border-color var(--pt-trans), color var(--pt-trans), background var(--pt-trans);
}

.pmo-lang-btn:hover,
.pmo-theme-btn:hover,
.pmo-lang-sw.open>.pmo-lang-btn,
.pmo-theme-sw.open>.pmo-theme-btn {
    border-color: var(--pt-accent);
    color: var(--pt-accent);
    background: var(--pt-accent-lt);
}

.pmo-lang-drop,
.pmo-theme-drop {
    display: none;
    position: absolute;
    top: calc(100% + .4rem);
    left: 0;
    right: 0;
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: var(--pt-radius);
    box-shadow: var(--pt-shadow);
    padding: .4rem 0;
    z-index: 1050;
}

.pmo-lang-sw.open>.pmo-lang-drop,
.pmo-theme-sw.open>.pmo-theme-drop {
    display: block;
    animation: portalFadeInDown 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.pmo-lang-item,
.pmo-theme-item {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .55rem 1rem;
    color: var(--pt-text);
    text-decoration: none !important;
    font-size: .85rem;
    font-weight: 500;
    transition: background var(--pt-trans), color var(--pt-trans);
}

.pmo-lang-item:hover,
.pmo-theme-item:hover {
    background: var(--pt-accent-lt);
    color: var(--pt-accent);
}

/* 選取中狀態 (.active) */
.pmo-lang-item.active,
.pmo-theme-item.active {
    background: var(--pt-accent-lt);
    color: var(--pt-accent);
    font-weight: 700;
}

/* 微平滑滑入動畫 */
/* 修正版本 - 只有垂直移動，沒有水平移動 */
@keyframes portalFadeInDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
        /* 只有垂直移動 */
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 如果需要其他動畫方向，可以添加 */
@keyframes portalFadeInUp {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes portalFadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-8px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes portalFadeInRight {
    from {
        opacity: 0;
        transform: translateX(8px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@media (max-width: 767px) {

    #portal-lang-sw,
    #portal-theme-sw {
        display: none !important;
    }
}

/* ───────────────────────────────────────────────────────────────────────
   12. pm-* 共用模組頁面樣式庫 (Hero, Feature Card, Buttons, Item Cards, FAQ, Stat, CTA)
   ─────────────────────────────────────────────────────────────────────── */
.pm-hero {
    background: linear-gradient(135deg, var(--pt-hero-from) 0%, var(--pt-hero-to) 100%);
    padding: 4rem 1.5rem 3.5rem;
    text-align: center;
}

.pm-hero-icon {
    font-size: 3.5rem;
    color: rgba(255, 255, 255, .95);
    margin-bottom: 1.25rem;
    display: block;
}

.pm-hero h1 {
    color: #fff;
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    font-weight: 800;
    margin-bottom: .6rem;
    letter-spacing: -.5px;
}

.pm-hero p {
    color: rgba(255, 255, 255, .82);
    font-size: 1rem;
    margin: 0;
    line-height: 1.6;
}

.pm-hero-actions {
    margin-top: 1.75rem;
    display: flex;
    gap: .75rem;
    justify-content: center;
    flex-wrap: wrap;
}

.pm-label {
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .8px;
    text-transform: uppercase;
    color: var(--pt-accent);
    margin-bottom: .35rem;
}

.pm-title {
    font-size: clamp(1.2rem, 3vw, 1.55rem);
    font-weight: 800;
    color: var(--pt-title-main);
    margin-bottom: .35rem;
    letter-spacing: -.3px;
}

.pm-subtitle {
    font-size: .88rem;
    color: var(--pt-text-muted);
    margin-bottom: 2.25rem;
}

.pm-feature-card {
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: var(--pt-radius);
    padding: 1.65rem 1.4rem;
    text-align: center;
    height: 100%;
    transition: box-shadow var(--pt-trans), transform var(--pt-trans);
}

.pm-feature-card:hover {
    box-shadow: var(--pt-shadow);
    transform: translateY(-2px);
}

.pm-feature-icon {
    width: 50px;
    height: 50px;
    border-radius: 14px;
    background: var(--pt-accent-lt);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.45rem;
    color: var(--pt-accent);
    margin-bottom: .95rem;
}

.pm-feature-card h4 {
    font-size: .9rem;
    font-weight: 700;
    color: var(--pt-title-main);
    margin-bottom: .35rem;
}

.pm-feature-card p {
    font-size: .8rem;
    color: var(--pt-text-muted);
    margin: 0;
    line-height: 1.5;
}

.pm-btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    border-radius: 8px;
    padding: .58rem 1.35rem;
    font-size: .88rem;
    font-weight: 600;
    text-decoration: none;
    transition: opacity var(--pt-trans), background var(--pt-trans);
    cursor: pointer;
    border: none;
    line-height: 1.4;
}

.pm-btn-primary {
    background: var(--pt-accent);
    color: #fff !important;
}

.pm-btn-primary:hover {
    opacity: .88;
    color: #fff !important;
}

.pm-btn-outline {
    background: transparent;
    color: var(--pt-accent) !important;
    border: 1.5px solid var(--pt-accent);
}

.pm-btn-outline:hover {
    background: var(--pt-accent-lt);
    color: var(--pt-accent) !important;
}

.pm-btn-ghost {
    background: rgba(255, 255, 255, .15);
    color: #fff !important;
    border: 1.5px solid rgba(255, 255, 255, .4);
    backdrop-filter: blur(4px);
}

.pm-btn-ghost:hover {
    background: rgba(255, 255, 255, .26);
    color: #fff !important;
}

.pm-item-card {
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: var(--pt-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
    transition: transform var(--pt-trans), box-shadow var(--pt-trans);
}

.pm-item-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--pt-shadow);
    color: inherit;
    text-decoration: none;
}

.pm-item-thumb {
    height: 148px;
    background: var(--pt-accent-lt);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.75rem;
    color: var(--pt-accent);
}

.pm-item-body {
    padding: 1.05rem 1.1rem .85rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.pm-item-tag {
    display: inline-block;
    background: var(--pt-accent-lt);
    color: var(--pt-accent);
    font-size: .68rem;
    font-weight: 700;
    padding: .1rem .52rem;
    border-radius: 20px;
    margin-bottom: .5rem;
    letter-spacing: .3px;
}

.pm-filter-link {
    display: block;
    padding: .38rem .75rem;
    border-radius: 8px;
    font-size: .84rem;
    text-decoration: none;
    color: var(--pt-text-muted);
    transition: background var(--pt-trans), color var(--pt-trans);
}

.pm-filter-link:hover {
    background: var(--pt-accent-lt);
    color: var(--pt-accent);
}

.pm-filter-link.active {
    background: var(--pt-accent);
    color: #fff !important;
}

.pm-filter-link.active:hover {
    background: var(--pt-accent);
    color: #fff !important;
}

.pm-item-title {
    font-size: .9rem;
    font-weight: 700;
    color: var(--pt-title-main);
    margin-bottom: .3rem;
    line-height: 1.4;
}

.pm-item-desc {
    font-size: .78rem;
    color: var(--pt-text-muted);
    line-height: 1.5;
    margin-bottom: .45rem;
}

.pm-item-meta {
    font-size: .72rem;
    color: var(--pt-text-muted);
    margin-top: auto;
    padding-top: .5rem;
    border-top: 1px solid var(--pt-border);
}

.pm-faq-item {
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: .6rem;
}

.pm-faq-btn {
    width: 100%;
    background: var(--pt-surface);
    border: none;
    padding: .95rem 1.2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    font-size: .9rem;
    font-weight: 600;
    color: var(--pt-title-main);
    cursor: pointer;
    transition: background var(--pt-trans);
}

.pm-faq-btn:hover {
    background: var(--pt-accent-lt);
}

.pm-faq-body {
    padding: .7rem 1.2rem 1rem;
    font-size: .83rem;
    color: var(--pt-text-muted);
    line-height: 1.65;
    border-top: 1px solid var(--pt-border);
}

.pm-dl-item {
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: 12px;
    padding: .95rem 1.2rem;
    display: flex;
    align-items: center;
    gap: .95rem;
    transition: box-shadow var(--pt-trans);
    text-decoration: none;
    color: inherit;
}

.pm-dl-item:hover {
    box-shadow: var(--pt-shadow);
    color: inherit;
}

.pm-dl-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: var(--pt-accent-lt);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    color: var(--pt-accent);
    flex-shrink: 0;
}

.pm-dl-info {
    flex: 1;
}

.pm-dl-name {
    font-size: .88rem;
    font-weight: 600;
    color: var(--pt-title-main);
    margin-bottom: .12rem;
}

.pm-dl-meta {
    font-size: .73rem;
    color: var(--pt-text-muted);
}

.pm-stat {
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: var(--pt-radius);
    padding: 1.5rem;
    text-align: center;
}

.pm-stat-num {
    font-size: 2rem;
    font-weight: 800;
    color: var(--pt-accent);
    line-height: 1;
    margin-bottom: .3rem;
}

.pm-stat-label {
    font-size: .78rem;
    color: var(--pt-text-muted);
}

.pm-stats-bar {
    background: var(--pt-surface);
    border-bottom: 1px solid var(--pt-border);
    padding: 1.25rem 0;
}

.pm-stats-bar .pm-stat {
    border: none;
    background: transparent;
    padding: .75rem 1rem;
}

.pm-why-card {
    text-align: center;
    padding: 1.5rem 1rem;
}

.pm-why-icon {
    width: 62px;
    height: 62px;
    border-radius: 18px;
    background: rgba(255, 255, 255, .14);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: #fff;
    margin: 0 auto 1rem;
}

.pm-why-card h4 {
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: .4rem;
}

.pm-why-card p {
    color: rgba(255, 255, 255, .68);
    font-size: .85rem;
    margin: 0;
    line-height: 1.6;
}

.pm-cta {
    background: linear-gradient(135deg, var(--pt-hero-from) 0%, var(--pt-hero-to) 100%);
    padding: 3.5rem 1.5rem;
    text-align: center;
}

.pm-cta h2 {
    color: #fff;
    font-size: clamp(1.3rem, 3vw, 1.8rem);
    font-weight: 800;
    margin-bottom: .5rem;
}

.pm-cta p {
    color: rgba(255, 255, 255, .8);
    margin-bottom: 1.5rem;
}

@media (max-width: 576px) {
    .portal-modules-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pm-hero {
        padding: 2.5rem 1rem 2rem;
    }
}

/* ───────────────────────────────────────────────────────────────────────
   13. 手機版漢堡選單與全螢幕 Overlay (.portal-hamburger, .portal-mobile-overlay, .pmo-*)
   ─────────────────────────────────────────────────────────────────────── */
.portal-hamburger {
    display: none;
    /* 🟢 預設在桌機版隱藏 */
    background: transparent;
    border: none;
    color: var(--pt-header-text);
    font-size: 1.55rem;
    padding: .25rem .5rem;
    cursor: pointer;
    line-height: 1;
    transition: opacity 0.2s ease, color var(--pt-trans);
    z-index: 1010;
}

.portal-hamburger:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.portal-mobile-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1500;
    background: var(--pt-bg);
    overflow-y: auto;
    flex-direction: column;
}

.portal-mobile-overlay.is-open {
    display: flex;
}

.pmo-header {
    position: sticky;
    top: 0;
    background: var(--pt-header-bg);
    border-bottom: 1px solid var(--pt-header-border);
    padding: .85rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 1;
}

.pmo-header .portal-logo {
    display: flex;
    align-items: center;
}

.pmo-header .portal-logo-img {
    height: 28px;
    width: auto;
    max-width: 130px;
    object-fit: contain;
}

.pmo-close {
    background: transparent;
    border: none;
    color: var(--pt-header-text);
    font-size: 1.55rem;
    line-height: 1;
    cursor: pointer;
}

.pmo-body {
    flex: 1;
    padding: 1rem 1.25rem 2rem;
}

.pmo-section-title {
    font-size: .82rem;
    font-weight: 700;
    letter-spacing: .5px;
    color: var(--pt-accent);
    margin: 1rem 0 .4rem;
    padding-bottom: .4rem;
    border-bottom: 1px solid var(--pt-border);
}

.pmo-overview-badge {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 0.18rem 0.6rem;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--pt-accent) !important;
    background-color: var(--pt-accent-lt);
    border: 1px solid var(--pt-border);
    border-radius: 20px;
    text-decoration: none !important;
    transition: all 0.2s ease;
    line-height: 1.2;
}

.pmo-overview-badge:hover,
.pmo-overview-badge:active {
    background-color: var(--pt-accent);
    color: #ffffff !important;
    border-color: var(--pt-accent);
}

.pmo-overview-badge i {
    font-size: 0.9rem;
    line-height: 1;
}

.pmo-link {
    display: flex;
    align-items: center;
    gap: .7rem;
    padding: .7rem .5rem;
    border-radius: 8px;
    text-decoration: none;
    color: var(--pt-text);
    font-size: .9rem;
    font-weight: 500;
    transition: background var(--pt-trans), color var(--pt-trans);
}

.pmo-link:hover {
    background: var(--pt-accent-lt);
    color: var(--pt-accent);
}

.pmo-link i {
    font-size: 1.15rem;
    color: var(--pt-accent);
    width: 22px;
    text-align: center;
}

.pmo-auth {
    padding: 1.25rem 0;
    border-top: 1px solid var(--pt-border);
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

.pmo-tools-bar {
    padding: .65rem 1.25rem;
    border-bottom: 1px solid var(--pt-border);
    display: flex;
    gap: .65rem;
    background: var(--pt-bg);
}

.pmo-tools-bar .pmo-lang-sw,
.pmo-tools-bar .pmo-theme-sw {
    position: relative;
    flex: 1;
    min-width: 110px;
}

/* 手機版工具欄按鈕文字顯示 */
.pmo-tools-bar .pmo-lang-btn,
.pmo-tools-bar .pmo-theme-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    width: 100%;
    padding: 0.45rem 0.65rem;
    background: var(--pt-accent-lt);
    border: 1px solid var(--pt-accent);
    border-radius: 8px;
    color: var(--pt-accent);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--pt-trans), border-color var(--pt-trans);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pmo-tools-bar .pmo-lang-btn:hover,
.pmo-tools-bar .pmo-theme-btn:hover {
    background: var(--pt-accent);
    color: #fff;
}

/* 按鈕內的文字標籤 */
.pmo-tools-bar .pmo-lang-btn span,
.pmo-tools-bar .pmo-theme-btn span {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pmo-tools-bar .pmo-lang-btn .bi,
.pmo-tools-bar .pmo-theme-btn .bi {
    font-size: .95rem;
}

.pmo-tools-bar .pmo-lang-drop,
.pmo-tools-bar .pmo-theme-drop {
    display: none;
    position: absolute;
    top: calc(100% + .25rem);
    left: 0;
    right: 0;
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, .14);
    z-index: 1600;
    max-height: 260px;
    overflow-y: auto;
    padding: .4rem;
}

.pmo-tools-bar .pmo-lang-sw.open .pmo-lang-drop,
.pmo-tools-bar .pmo-theme-sw.open .pmo-theme-drop {
    display: flex;
}

/* 讓 Lang 和 Theme 的下拉選單都使用垂直排列 */
.pmo-tools-bar .pmo-lang-drop,
.pmo-tools-bar .pmo-theme-drop {
    flex-direction: column;
}

.pmo-tools-bar .pmo-lang-flag {
    font-size: .95rem;
    line-height: 1;
}

@media (max-width: 768px) {

    .portal-nav-container,
    .portal-nav {
        display: none;
    }

    .portal-hamburger {
        display: block !important;
        pointer-events: auto !important;
    }

    .portal-logo-img {
        height: 28px;
        max-width: 120px;
    }
}

@media (max-width: 480px) {
    .portal-logo-img {
        height: 24px;
        max-width: 100px;
    }
}

/* ───────────────────────────────────────────────────────────────────────
   14. 全站載入遮罩 (#portal-loader)
   ─────────────────────────────────────────────────────────────────────── */
#portal-loader {
    position: fixed;
    inset: 0;
    z-index: 99999;
    background: var(--pt-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity .45s ease;
}

#portal-loader.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loader-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.loader-logo-img {
    height: 64px;
    width: auto;
    max-width: 220px;
    object-fit: contain;
}

.loader-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--pt-border);
    border-top-color: var(--pt-accent);
    border-radius: 50%;
    animation: loaderSpin .75s linear infinite;
}

@keyframes loaderSpin {
    to {
        transform: rotate(360deg);
    }
}

/* ───────────────────────────────────────────────────────────────────────
   15. Cookie 隱私權通知列 (#cookie-bar)
   ─────────────────────────────────────────────────────────────────────── */
#cookie-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1400;
    background: var(--pt-surface);
    border-top: 1px solid var(--pt-border);
    padding: .85rem 1.5rem;
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    box-shadow: 0 -4px 16px rgba(0, 0, 0, .12);
}

#cookie-bar.is-visible {
    display: flex;
}

.cookie-text {
    font-size: .82rem;
    color: var(--pt-text-muted);
    flex: 1;
    min-width: 220px;
}

.cookie-text a {
    color: var(--pt-accent);
}

.cookie-actions {
    display: flex;
    gap: .55rem;
    flex-shrink: 0;
}

.cookie-btn-accept {
    padding: .38rem .95rem;
    background: var(--pt-accent);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: .82rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity var(--pt-trans);
}

.cookie-btn-accept:hover {
    opacity: .85;
}

.cookie-btn-reject {
    padding: .38rem .95rem;
    background: transparent;
    color: var(--pt-text-muted);
    border: 1px solid var(--pt-border);
    border-radius: 8px;
    font-size: .82rem;
    cursor: pointer;
    transition: background var(--pt-trans);
}

.cookie-btn-reject:hover {
    background: var(--pt-border);
}

/* ───────────────────────────────────────────────────────────────────────
   16. 懸浮按鈕與手機版底部工具列 (#portal-fab, .fab-btn)
   ─────────────────────────────────────────────────────────────────────── */
#portal-fab {
    position: fixed;
    right: 1.25rem;
    bottom: 5.5rem;
    z-index: 1300;
    display: flex;
    flex-direction: column;
    gap: .55rem;
    align-items: flex-end;
}

.fab-btn {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--pt-accent);
    color: #fff;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.22rem;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(0, 0, 0, .2);
    transition: opacity var(--pt-trans), transform var(--pt-trans);
    position: relative;
}

.fab-btn:hover {
    opacity: .88;
    transform: scale(1.08);
    color: #fff;
}

.fab-btn .fab-tooltip {
    position: absolute;
    right: 54px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, .7);
    color: #fff;
    font-size: .73rem;
    padding: .2rem .6rem;
    border-radius: 6px;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity .2s;
}

.fab-btn:hover .fab-tooltip {
    opacity: 1;
}

@media (max-width: 768px) {
    #portal-fab {
        right: 0;
        left: 0;
        bottom: 0;
        z-index: 1001;
        flex-direction: row;
        justify-content: space-around;
        align-items: center;
        gap: 0;
        border-top: 2px solid var(--pt-border);
        background: var(--pt-surface);
        box-shadow: 0 -6px 20px rgba(0, 0, 0, .15);
    }

    .fab-btn {
        flex-direction: column;
        width: auto;
        height: auto;
        flex: 1;
        border-radius: 8px;
        gap: .25rem;
        font-size: 1.15rem;
        padding: .6rem .4rem;
        background: transparent;
        color: var(--pt-text-muted);
        box-shadow: none;
        transition: all var(--pt-trans);
        text-decoration: none;
        border: none;
        cursor: pointer;
    }

    .fab-btn:nth-child(n+4) {
        display: none;
    }

    .fab-btn .fab-tooltip {
        display: none;
    }

    .fab-btn .fab-label {
        font-size: .7rem;
        font-weight: 600;
        display: block;
        color: inherit;
    }

    .fab-btn.fab-active {
        color: var(--pt-accent);
    }

    .fab-btn:hover {
        background: var(--pt-accent-lt) !important;
        color: var(--pt-accent) !important;
        transform: none;
        opacity: 1;
    }

    #cookie-bar {
        bottom: 4.2rem;
    }
}

@media (min-width: 769px) {
    .fab-label {
        display: none;
    }
}

/* ───────────────────────────────────────────────────────────────────────
   17. 登入 Modal 彈窗 (.portal-login-modal, .plm-*)
   ─────────────────────────────────────────────────────────────────────── */
.portal-login-modal .modal-content {
    border-radius: 14px;
    border: 1px solid var(--pt-border);
    background: var(--pt-surface);
    overflow: hidden;
}

.portal-login-modal .modal-header {
    background: var(--pt-header-bg);
    border-bottom: 1px solid var(--pt-border);
    padding: 1.25rem 1.5rem;
}

.portal-login-modal .modal-title {
    color: var(--pt-header-text);
    font-weight: 700;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: .5rem;
}

.portal-login-modal .btn-close {
    filter: invert(1) grayscale(100%) brightness(2);
}

.portal-login-modal .modal-body {
    padding: 1.5rem 1.5rem 1rem;
}

.portal-login-modal .modal-footer {
    border-top: 1px solid var(--pt-border);
    padding: .8rem 1.5rem;
}

.plm-input {
    background: var(--pt-bg);
    border: 1px solid var(--pt-border);
    border-radius: 10px;
    padding: .62rem 1rem;
    font-size: .88rem;
    color: var(--pt-text);
    width: 100%;
    outline: none;
    transition: border-color var(--pt-trans), box-shadow var(--pt-trans);
}

.plm-input:focus {
    border-color: var(--pt-accent);
    box-shadow: 0 0 0 3px var(--pt-accent-lt);
}

.plm-label {
    font-size: .8rem;
    font-weight: 700;
    color: var(--pt-title-main);
    margin-bottom: .35rem;
    display: block;
}

.plm-btn-login {
    width: 100%;
    padding: .7rem 1.5rem;
    background: var(--pt-accent);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: .92rem;
    font-weight: 700;
    cursor: pointer;
    transition: opacity var(--pt-trans);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
}

.plm-btn-login:hover {
    opacity: .88;
}

.plm-btn-login:disabled {
    opacity: .55;
    cursor: not-allowed;
}

.plm-error {
    background: #fee2e2;
    border: 1px solid #fca5a5;
    border-radius: 8px;
    padding: .75rem .9rem;
    font-size: .82rem;
    color: #991b1b;
    display: none;
    align-items: center;
    gap: .45rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    word-break: break-word;
}

.plm-error i {
    flex-shrink: 0;
}

.plm-error span {
    flex: 1;
    min-width: 150px;
}

.plm-error.show {
    display: flex;
}

/* ───────────────────────────────────────────────────────────────────────
   18. Profile 個人資料頁專用樣式 (.prf-*)
   ─────────────────────────────────────────────────────────────────────── */
.prf-hero {
    background: linear-gradient(135deg, var(--pt-hero-from) 0%, var(--pt-hero-to) 100%);
    color: #fff;
    padding: 2.5rem 1.5rem;
    margin-bottom: 2rem;
}

.prf-hero-inner {
    display: flex;
    align-items: center;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.prf-avatar-wrap {
    position: relative;
    flex-shrink: 0;
}

.prf-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: bold;
    border: 3px solid rgba(255, 255, 255, 0.5);
    color: #fff;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.prf-status-dot {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #ef4444;
    border: 4px solid #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.prf-status-dot.active {
    background: #22c55e;
}

.prf-hero-info {
    flex: 1;
    color: #fff;
}

.prf-hero-name {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.prf-hero-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.9rem;
    opacity: 1;
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.prf-level-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(255, 255, 255, 0.3);
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: #fff;
    backdrop-filter: blur(4px);
}

.prf-logout-form {
    display: flex;
    margin-top: auto;
}

.prf-logout-btn {
    background: rgba(255, 255, 255, 0.25);
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.4);
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
}

.prf-logout-btn:hover {
    background: rgba(255, 255, 255, 0.4);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
}

.prf-stats-bar {
    background: var(--pt-surface);
    border-bottom: 1px solid var(--pt-border);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.prf-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.prf-stat {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.prf-stat-icon {
    font-size: 1.8rem;
    color: var(--pt-accent);
    opacity: 0.8;
}

.prf-stat-label {
    font-size: 0.8rem;
    color: var(--pt-text-muted);
    font-weight: 600;
}

.prf-stat-val {
    font-size: 1rem;
    color: var(--pt-text);
    font-weight: 700;
    margin-top: 0.2rem;
}

.prf-body {
    padding: 0 1.5rem 3rem;
}

.prf-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 2rem;
}

.prf-sidenav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.prf-nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    color: var(--pt-text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.2s ease;
    cursor: pointer;
    border: 1px solid transparent;
}

.prf-nav-item:hover {
    background: var(--pt-surface);
    color: var(--pt-accent);
}

.prf-nav-item.active {
    background: var(--pt-accent-lt);
    color: var(--pt-accent);
    border-color: var(--pt-accent);
}

.prf-nav-item i {
    font-size: 1.1rem;
}

.prf-nav-link-out {
    color: var(--pt-accent);
}

.prf-nav-divider {
    height: 1px;
    background: var(--pt-border);
    margin: 0.5rem 0;
}

.prf-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.prf-tab {
    display: none;
}

.prf-tab.active {
    display: block;
}

.prf-section-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--pt-title-main);
    margin-bottom: 1rem;
    margin-top: 1.5rem;
}

.prf-section-title:first-child {
    margin-top: 0;
}

.prf-section-title i {
    color: var(--pt-accent);
    font-size: 1.2rem;
}

.prf-info-card {
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: 8px;
    padding: 1.5rem;
}

.prf-info-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.prf-info-row {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 1.5rem;
    align-items: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--pt-border);
}

.prf-info-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.prf-info-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--pt-text-muted);
    font-size: 0.9rem;
}

.prf-info-val {
    color: var(--pt-text);
    font-weight: 600;
    font-size: 1.02rem;
    letter-spacing: 0.3px;
}

.prf-info-val::selection {
    background: var(--pt-accent);
    color: #fff;
}

.prf-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.8rem;
    border-radius: 16px;
    font-size: 0.8rem;
    font-weight: 600;
}

.prf-badge-success {
    background: #d1fae5;
    color: #065f46;
}

.prf-badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

.prf-badge-muted {
    background: #f3f4f6;
    color: #6b7280;
}

.prf-quicklinks {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 1rem;
}

.prf-ql-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.5rem 1rem;
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: 8px;
    text-decoration: none;
    color: var(--pt-accent);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.prf-ql-item:hover {
    background: var(--pt-accent-lt);
    border-color: var(--pt-accent);
    transform: translateY(-2px);
}

.prf-ql-item i {
    font-size: 1.8rem;
}

.prf-security-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.prf-sec-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--pt-surface);
    border: 1px solid var(--pt-border);
    border-radius: 8px;
}

.prf-sec-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.prf-sec-label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--pt-text);
}

.prf-sec-desc {
    font-size: 0.8rem;
    margin-top: 0.25rem;
    color: var(--pt-text-muted);
}

.prf-card-subtitle {
    font-size: 1rem;
    font-weight: 700;
    color: var(--pt-title-main);
}

.prf-timeline {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.prf-tl-item {
    display: flex;
    gap: 1.5rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--pt-border);
}

.prf-tl-item:last-child {
    border-bottom: none;
}

.prf-tl-dot {
    flex-shrink: 0;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--pt-accent);
    margin-top: 0.4rem;
}

.prf-tl-body {
    flex: 1;
}

.prf-tl-title {
    font-weight: 600;
    color: var(--pt-text);
    font-size: 0.95rem;
}

.prf-tl-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--pt-text-muted);
    margin-top: 0.35rem;
}

@media (max-width: 992px) {
    .prf-layout {
        grid-template-columns: 1fr;
    }

    .prf-sidenav {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .prf-nav-item {
        flex: 0 0 calc(50% - 0.25rem);
    }

    .prf-hero-inner {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }

    .prf-logout-form {
        width: 100%;
    }

    .prf-logout-btn {
        width: 100%;
        justify-content: center;
    }

    .prf-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .prf-hero {
        padding: 1.5rem 1rem;
        margin-bottom: 1.5rem;
    }

    .prf-avatar {
        width: 70px;
        height: 70px;
        font-size: 1.8rem;
    }

    .prf-hero-name {
        font-size: 1.3rem;
    }

    .prf-info-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .prf-info-label {
        font-weight: 500;
    }

    .prf-nav-item {
        flex: 1;
        padding: 0.6rem 0.75rem;
        font-size: 0.85rem;
    }

    .prf-stats-grid {
        grid-template-columns: 1fr;
    }

    .prf-quicklinks {
        grid-template-columns: repeat(2, 1fr);
    }

    .prf-body {
        padding: 0 1rem 2rem;
    }
}

/* ───────────────────────────────────────────────────────────────────────
   19. 響應式側邊抽屜與滿版選單核心 (.portal-menu-backdrop)
   ─────────────────────────────────────────────────────────────────────── */
.portal-menu-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(3px);
    z-index: 1490;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portal-menu-backdrop.is-open {
    display: block;
    opacity: 1;
}

@media (max-width: 767.98px) {
    .portal-mobile-overlay {
        position: fixed;
        inset: 0;
        width: 100%;
        height: 100vh;
        z-index: 1500;
    }
}

@media (min-width: 768px) {
    .portal-mobile-overlay {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        left: auto !important;
        width: 380px;
        max-width: 85vw;
        height: 100vh;
        z-index: 1500;
        box-shadow: -8px 0 30px rgba(0, 0, 0, 0.3);
        transform: translateX(100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        display: flex !important;
        pointer-events: none;
        visibility: hidden;
    }

    .portal-mobile-overlay.is-open {
        transform: translateX(0);
        pointer-events: auto;
        visibility: visible;
    }
}


/* ───────────────────────────────────────────────────────────────────────
   20. 偶數區塊自動變色 (淺綠色/次要襯底色) 與奇數區塊維持白底
   ─────────────────────────────────────────────────────────────────────── */
/* 1. 預設所有積木外層與內容區塊底色為純白 */
.page-block-wrapper {
    background-color: var(--pt-surface, #ffffff);
    transition: background-color 0.3s ease;
}

/* 2. 偶數順序區塊 (第 2、4、6... 個區塊)：自動變更為淺綠色/次要襯底色 */
.page-block-wrapper:nth-of-type(even) {
    background-color: var(--pt-block-bg-light, #f0fdf4) !important;
}

/* 3. 確保偶數區塊內部的組件容器繼承父層背景（消除區塊內自帶的白色背景） */
.page-block-wrapper:nth-of-type(even) .dynamic-wrapper,
.page-block-wrapper:nth-of-type(even) [class*="-section"] {
    background-color: transparent !important;
}

/* 4. 奇數順序區塊 (第 1、3、5... 個區塊)：維持白底 */
.page-block-wrapper:nth-of-type(odd) {
    background-color: var(--pt-surface, #ffffff);
}

/* ───────────────────────────────────────────────────────────────────────
   富文本編輯器內容樣式保護層 (修正版：徹底釋放行內樣式與繼承鏈)
   ─────────────────────────────────────────────────────────────────────── */

/* 1. 徹底解除全域 span, strong, b 對繼承鏈的阻斷，讓橘色一路順暢傳遞到最內層文字 */
.rich-text-content span:not([style*="color"]),
.rich-text-content strong,
.rich-text-content b,
.rich-text-content em,
.rich-text-content i {
    color: inherit;
}

/* 2. 確保在富文本內，有自訂行內字級的標籤正常生效 */
.rich-text-content [style*="font-size"] {
    font-size: inherit;
    /* 保留行內 style 的 px 覆蓋 */
}