/*
Theme Name: Content Hub
Theme URI: https://example.com/content-hub
Author: Your Name
Author URI: https://example.com
Description: 入口型（portal）WordPress 主題。首頁中間依序顯示前三大分類的最新文章（圖片＋標籤＋標題）與「超級盃 熱門介紹」精選區，手機／平板自動改為每 2 秒切換的輪播圖；右欄固定顯示搜尋、熱門標籤（自動偵測）、熱門文章、熱門遊戲；全站頁首固定，Logo 在左、右側為橫向捲動的大主題選單；全站附回到頂部按鈕。適合內容型入口網站、媒體站、多主題內容站使用。
Version: 3.2.2
Requires at least: 6.0
Requires PHP: 7.4
Tested up to: 6.6
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: content-hub
Tags: blog, news, custom-menu, featured-images, threaded-comments, translation-ready, grid-layout

Content Hub is distributed under the terms of the GNU GPL.
*/

/* =========================================================
   0. CSS 變數 / Design Tokens
   ========================================================= */
:root {
	--ch-color-bg: #ffffff;
	--ch-color-surface: #f6f7f9;
	--ch-color-border: #e5e7eb;
	--ch-color-text: #1a1d23;
	--ch-color-text-muted: #6b7280;
	--ch-color-accent: #2454ff;
	--ch-color-accent-dark: #1739b3;
	--ch-color-accent-contrast: #ffffff;
	--ch-font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", Roboto, Helvetica, Arial, sans-serif;
	--ch-radius: 10px;
	--ch-radius-sm: 6px;
	--ch-shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 1px 3px rgba(16, 24, 40, .06);
	--ch-shadow-hover: 0 4px 10px rgba(16, 24, 40, .08), 0 2px 4px rgba(16, 24, 40, .06);
	--ch-container: 1320px;
	--ch-gap: 32px;
	--ch-right-w: 320px;
	--ch-header-h: 68px;
}

/* =========================================================
   1. Reset / Base
   ========================================================= */
*,
*::before,
*::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
	margin: 0;
	font-family: var(--ch-font-base);
	color: var(--ch-color-text);
	background: var(--ch-color-bg);
	line-height: 1.6;
	font-size: 16px;
}

img { max-width: 100%; height: auto; display: block; }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--ch-color-accent); }

ul, ol { margin: 0; padding: 0; list-style: none; }

button, input, textarea, select { font-family: inherit; font-size: inherit; }

h1, h2, h3, h4, h5, h6 { margin: 0 0 .5em; line-height: 1.3; font-weight: 700; }

p { margin: 0 0 1em; }

.screen-reader-text {
	position: absolute !important;
	clip: rect(1px, 1px, 1px, 1px);
	width: 1px; height: 1px; overflow: hidden;
}

.container {
	max-width: var(--ch-container);
	margin: 0 auto;
	padding: 0 24px;
}

.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	padding: 10px 20px;
	border-radius: var(--ch-radius-sm);
	background: var(--ch-color-accent);
	color: var(--ch-color-accent-contrast);
	font-weight: 600;
	font-size: 14px;
	border: none;
	cursor: pointer;
	transition: background .15s ease, transform .15s ease;
}
.btn:hover { background: var(--ch-color-accent-dark); color: var(--ch-color-accent-contrast); transform: translateY(-1px); }
.btn-outline {
	background: transparent;
	color: var(--ch-color-accent);
	border: 1px solid var(--ch-color-accent);
}
.btn-outline:hover { background: var(--ch-color-accent); color: #fff; }
.btn-block { display: flex; width: 100%; }

/* 小標籤：文章卡片/內文頁上的分類眼標（例如「棒球」） */
.eyebrow-cat {
	display: inline-block;
	font-size: 11px;
	font-weight: 700;
	color: var(--ch-color-accent);
	text-transform: uppercase;
	letter-spacing: .05em;
	margin-bottom: 6px;
}

/* =========================================================
   2. Site Header：全站固定，Logo 在左、右側為橫向捲動的大主題選單
   ========================================================= */
.site-header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: rgba(255,255,255,.92);
	backdrop-filter: saturate(180%) blur(8px);
	border-bottom: 1px solid var(--ch-color-border);
}
.site-header-inner {
	display: flex;
	align-items: center;
	gap: 20px;
	height: var(--ch-header-h);
}
.site-branding { display: flex; align-items: center; flex: 0 0 auto; }
.site-branding img.custom-logo { max-height: 40px; width: auto; }
.site-title { font-size: 19px; font-weight: 800; margin: 0; letter-spacing: -.02em; white-space: nowrap; }
.site-title a:hover { color: var(--ch-color-text); }

/* 尚未上傳 Logo 前的空白佔位：跟之後放上 Logo 的高度一致，不顯示任何文字或圖案，
   等到「外觀 > 自訂 > 網站識別」上傳圖片後會自動改顯示 .custom-logo（見 header.php）。 */
.site-logo-placeholder { display: block; width: 140px; height: 40px; }

/* 橫向捲動的大主題選單：分類數量多、螢幕變窄時自動變成可滑動的捲軸，
   不需要另外做漢堡選單／off-canvas，桌機和手機共用同一套元件。
   外層 .nav-scroller 包住選單本體＋左右箭頭鈕（見 header.php／assets/js/main.js
   initNavScroller）：JS 偵測到內容超出可視寬度時才加上 .is-scrollable，顯示箭頭鈕，
   並依目前捲動位置加上 .can-scroll-left / .can-scroll-right，讓對應那側的邊緣淡出、
   提示「這邊還有內容」，捲到底時該側箭頭鈕也會自動變成不可點擊。 */
.nav-scroller {
	flex: 1 1 auto;
	min-width: 0;
	display: flex;
	align-items: center;
	gap: 2px;
	position: relative;
}
.main-navigation {
	flex: 1 1 auto;
	min-width: 0;
	overflow-x: auto;
	-webkit-overflow-scrolling: touch;
	scrollbar-width: none;
}
.main-navigation::-webkit-scrollbar { display: none; }
.main-navigation ul {
	display: flex;
	align-items: center;
	gap: 4px;
	flex-wrap: nowrap;
	width: max-content;
}
.main-navigation a {
	display: inline-block;
	padding: 8px 14px;
	border-radius: 999px;
	font-size: 14px;
	font-weight: 600;
	white-space: nowrap;
	color: var(--ch-color-text);
}
.main-navigation a:hover,
.main-navigation a.current-menu-item { background: var(--ch-color-surface); color: var(--ch-color-accent); }
.main-navigation a.current-menu-item { background: var(--ch-color-accent); color: #fff; }
/* 「外觀 > 選單」指派的選單由 wp_nav_menu() 輸出時，目前項目的 class 是加在 <li> 上
   （current-menu-item / current_page_item），不是 <a> 上，這裡補一致的高亮樣式 */
.main-navigation li.current-menu-item > a,
.main-navigation li.current_page_item > a,
.main-navigation li.current-menu-ancestor > a { background: var(--ch-color-accent); color: #fff; }

/* 選單還沒顯示完、可以左右滑動時的邊緣淡出提示 */
.nav-scroller.can-scroll-left .main-navigation {
	-webkit-mask-image: linear-gradient(to right, transparent 0, #000 20px, #000 100%);
	mask-image: linear-gradient(to right, transparent 0, #000 20px, #000 100%);
}
.nav-scroller.can-scroll-right .main-navigation {
	-webkit-mask-image: linear-gradient(to left, transparent 0, #000 20px, #000 100%);
	mask-image: linear-gradient(to left, transparent 0, #000 20px, #000 100%);
}
.nav-scroller.can-scroll-left.can-scroll-right .main-navigation {
	-webkit-mask-image: linear-gradient(to right, transparent 0, #000 20px, #000 calc(100% - 20px), transparent 100%);
	mask-image: linear-gradient(to right, transparent 0, #000 20px, #000 calc(100% - 20px), transparent 100%);
}

/* 左右箭頭鈕：預設隱藏，選單真的超出寬度、需要捲動時（.nav-scroller.is-scrollable）才出現 */
.nav-scroll-arrow {
	display: none;
	flex: 0 0 auto;
	align-items: center;
	justify-content: center;
	width: 26px;
	height: 26px;
	border-radius: 50%;
	border: 1px solid var(--ch-color-border);
	background: #fff;
	color: var(--ch-color-text);
	cursor: pointer;
	transition: background .15s ease, color .15s ease, opacity .15s ease;
}
.nav-scroller.is-scrollable .nav-scroll-arrow { display: flex; }
.nav-scroll-arrow svg { width: 13px; height: 13px; }
.nav-scroll-arrow:hover { background: var(--ch-color-surface); color: var(--ch-color-accent); }
.nav-scroll-arrow:disabled { opacity: .3; cursor: default; pointer-events: none; }

/* =========================================================
   3. 首頁：入口型「區域分類磚塊」+ 固定右欄
   ========================================================= */
.portal-layout {
	display: grid;
	grid-template-columns: minmax(0, 1fr) var(--ch-right-w);
	gap: var(--ch-gap);
	padding: 32px 0 64px;
	align-items: start;
	transition: grid-template-columns .25s ease;
}
/* 桌機／平板版右欄旁的收合箭頭鈕收起來時：右欄縮成只剩按鈕的窄條，讓出空間給中間內容 */
.portal-layout.sidebar-collapsed { grid-template-columns: minmax(0, 1fr) 32px; }
.portal-layout.sidebar-collapsed .portal-sidebar { display: none; }

.portal-main { min-width: 0; }

/* --- 中間：區域分類磚塊，桌機每列 3 個 --- */
.category-tile-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 22px;
}

.category-tile {
	position: relative;
	display: block;
	border-radius: var(--ch-radius);
	overflow: hidden;
	aspect-ratio: 4 / 3;
	background: var(--ch-color-surface);
	box-shadow: var(--ch-shadow);
	transition: transform .2s ease, box-shadow .2s ease;
}
.category-tile:hover { transform: translateY(-3px); box-shadow: var(--ch-shadow-hover); }
.category-tile__media { position: absolute; inset: 0; display: block; }
.category-tile__media img,
.category-tile__fallback { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .35s ease; }
.category-tile:hover .category-tile__media img,
.category-tile:hover .category-tile__fallback { transform: scale(1.06); }
.category-tile__scrim {
	position: absolute;
	inset: 0;
	background: linear-gradient(180deg, rgba(0,0,0,0) 40%, rgba(0,0,0,.72) 100%);
}
.category-tile__body {
	position: absolute;
	left: 0; right: 0; bottom: 0;
	padding: 18px 20px;
	color: #fff;
}
.category-tile__name { display: block; font-size: 20px; font-weight: 800; letter-spacing: -.01em; text-shadow: 0 1px 3px rgba(0,0,0,.25); }
.category-tile__count { display: block; font-size: 12.5px; color: rgba(255,255,255,.8); margin-top: 4px; }

/* --- 中間：主題輪播區塊（前三大分類 + 超級盃熱門介紹），桌機一列 3 欄 --- */
.topic-section { margin-bottom: 48px; }
.topic-section:last-child { margin-bottom: 0; }

.topic-head { margin-bottom: 18px; }
.topic-head h2 { font-size: 22px; font-weight: 800; letter-spacing: -.01em; margin: 0; }

/* 「熱門介紹」標題：文字置中、左右各一條橫線 */
.topic-head--centered h2 {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 16px;
	text-align: center;
}
.topic-head--centered h2::before,
.topic-head--centered h2::after {
	content: "";
	flex: 1 1 auto;
	height: 1px;
	background: var(--ch-color-border);
}

/* 「最新文章」標題：比一般 topic-head 更大、更醒目的區塊主標 */
.topic-head__big { font-size: 26px; }

.topic-more {
	display: block;
	text-align: right;
	margin-top: 14px;
	font-size: 13.5px;
	font-weight: 700;
	color: var(--ch-color-accent);
}
.topic-more:hover { color: var(--ch-color-accent-dark); }

.carousel { position: relative; }

.card-row,
.picks-row {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 22px;
}

.article-card,
.pick-card {
	display: block;
	background: var(--ch-color-surface);
	border: 1px solid var(--ch-color-border);
	border-radius: var(--ch-radius);
	overflow: hidden;
	box-shadow: var(--ch-shadow);
	transition: transform .2s ease, box-shadow .2s ease;
}
.article-card:hover,
.pick-card:hover { transform: translateY(-3px); box-shadow: var(--ch-shadow-hover); }

.article-card .ph-image,
.pick-card .ph-image {
	aspect-ratio: 4 / 3;
	background: var(--ch-color-border);
	overflow: hidden;
}
.article-card .ph-image img,
.pick-card .ph-image img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* 文章沒設定特色圖片時的備用色塊，配色與版型預覽一致（暖灰色調），見 ch_render_placeholder_image() */
.ph-fallback {
	width: 100%;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
	background: linear-gradient(135deg, #d8d3c6, #c7c2b3);
}
.ph-fallback svg { width: 15%; min-width: 26px; max-width: 40px; height: auto; color: #83807a; }

.article-card .card-body { padding: 16px 18px 18px; }
.pick-card h3 { padding: 14px 18px 18px; margin: 0; font-size: 15.5px; font-weight: 700; line-height: 1.4; }

.article-card .tag-chip {
	display: inline-block;
	font-size: 11.5px;
	font-weight: 700;
	color: var(--ch-color-accent);
	background: rgba(36,84,255,.1);
	border-radius: 999px;
	padding: 3px 10px;
	margin-bottom: 8px;
}
.article-card h3 { margin: 0; font-size: 15.5px; font-weight: 700; line-height: 1.4; color: var(--ch-color-text); }

/* 輪播箭頭 / 指示點：桌機版預設隱藏，只有切到手機／平板輪播模式才顯示（見下方 RWD） */
.carousel-arrow {
	display: none;
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	z-index: 2;
	width: 36px;
	height: 36px;
	border-radius: 50%;
	border: 1px solid var(--ch-color-border);
	background: rgba(255,255,255,.92);
	box-shadow: var(--ch-shadow);
	align-items: center;
	justify-content: center;
	cursor: pointer;
	color: var(--ch-color-text);
}
.carousel-arrow.prev { left: -6px; }
.carousel-arrow.next { right: -6px; }
.carousel-arrow:hover { background: var(--ch-color-accent); color: #fff; border-color: var(--ch-color-accent); }

.carousel-dots { display: none; justify-content: center; gap: 8px; margin-top: 14px; }
.carousel-dot {
	width: 7px;
	height: 7px;
	padding: 0;
	border-radius: 50%;
	border: 0;
	background: var(--ch-color-border);
	cursor: pointer;
}
.carousel-dot.is-active { background: var(--ch-color-accent); width: 18px; border-radius: 4px; }

/* --- 「熱門介紹」：固定 3 個分類代表圖 + 分類名稱（不是文章卡片） --- */
.intro-row {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 22px;
}
.intro-card {
	display: block;
	background: var(--ch-color-surface);
	border: 1px solid var(--ch-color-border);
	border-radius: var(--ch-radius);
	overflow: hidden;
	box-shadow: var(--ch-shadow);
	transition: transform .2s ease, box-shadow .2s ease;
	text-align: center;
}
.intro-card:hover { transform: translateY(-3px); box-shadow: var(--ch-shadow-hover); }
.intro-card .ph-image { aspect-ratio: 4 / 3; background: var(--ch-color-border); overflow: hidden; }
.intro-card .ph-image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.intro-card h3 { margin: 0; padding: 16px 12px; font-size: 16px; font-weight: 800; color: var(--ch-color-text); }

/* --- 「最新文章」：不放圖片，純標題的直向自動捲動清單（跑馬燈／滾筒效果），
   桌機／平板／手機都一次固定看 5 行，捲動由 JS 控制（見 front-page.php 內 .news-reel 那段 script） --- */
.news-reel {
	position: relative;
	overflow: hidden;
	background: transparent;
	border: none;
	/* 上下邊緣淡出，中間清楚、越靠邊緣越淡，做出「滾筒」由遠而近的層次感 */
	-webkit-mask-image: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,.25) 10%, #000 32%, #000 68%, rgba(0,0,0,.25) 90%, transparent 100%);
	mask-image: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,.25) 10%, #000 32%, #000 68%, rgba(0,0,0,.25) 90%, transparent 100%);
}
.news-reel__track { list-style: none; margin: 0; padding: 0; will-change: transform; }
.news-reel__item {
	height: 56px;
	display: flex;
	align-items: center;
	padding: 0 4px;
}
.news-reel__item a {
	display: flex;
	align-items: center;
	gap: 10px;
	width: 100%;
	font-size: 15px;
	font-weight: 600;
	line-height: 1.4;
	color: var(--ch-color-text);
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}
.news-reel__item a:hover { color: var(--ch-color-accent); }
.news-reel__bullet { flex: 0 0 auto; font-weight: 800; color: var(--ch-color-accent); }
.news-reel__text { overflow: hidden; text-overflow: ellipsis; }

/* --- 右欄：固定顯示 搜尋 / 熱門文章 / 依主題最新文章 --- */
.portal-sidebar-wrap { min-width: 0; }
.portal-sidebar { display: flex; flex-direction: column; gap: 20px; position: sticky; top: calc(var(--ch-header-h) + 20px); }

/* 文章頁專用側欄容器（見 ch_render_single_sidebar()）：桌機版直接顯示，固定在可視範圍內 */
.single-sidebar-wrap { min-width: 0; }
.single-sidebar { display: flex; flex-direction: column; gap: 20px; position: sticky; top: calc(var(--ch-header-h) + 20px); }

/* 桌機／平板版：右欄／側欄最上方的收合箭頭鈕。點一下側欄收起來（只留這顆鈕的窄條，
   讓中間內容變寬），再點一次展開回來。跟 .portal-sidebar／.single-sidebar 是同一層的
   兄弟元素，收合時側欄本身 display:none，但這顆鈕維持顯示，才點得到再展開；也用
   position:sticky（跟側欄同一個機制）讓它捲動時跟著停在原位。手機版改用開關按鈕＋
   從右邊滑出的抽屜取代（見下方 max-width:880px），這顆鈕在那個寬度會隱藏。 */
.sidebar-collapse-toggle {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	position: sticky;
	top: calc(var(--ch-header-h) + 20px);
	width: 32px;
	height: 32px;
	margin-bottom: 12px;
	margin-left: auto;
	flex: 0 0 auto;
	border-radius: 50%;
	border: 1px solid var(--ch-color-border);
	background: #fff;
	color: var(--ch-color-text);
	cursor: pointer;
	transition: border-color .2s ease, color .2s ease;
}
.sidebar-collapse-toggle:hover { border-color: var(--ch-color-accent); color: var(--ch-color-accent); }
.sidebar-collapse-toggle svg { width: 15px; height: 15px; transition: transform .25s ease; flex: 0 0 auto; }
.portal-layout.sidebar-collapsed .sidebar-collapse-toggle svg,
.content-layout.sidebar-collapsed .sidebar-collapse-toggle svg { transform: rotate(180deg); }

.side-block {
	background: var(--ch-color-surface);
	border: 1px solid var(--ch-color-border);
	border-radius: var(--ch-radius);
	padding: 20px;
}
.side-block--search { padding: 14px; }
.side-block--search .search-form { display: flex; justify-content: center; }
.side-block--search input[type="search"] {
	flex: 0 1 auto;
	width: 100%;
	max-width: 220px;
	border: 1px solid var(--ch-color-border);
	border-radius: 999px;
	padding: 9px 16px;
	background: #fff;
}
.side-block--search input[type="search"]:focus { outline: 2px solid var(--ch-color-accent); }
.side-block__title {
	font-size: 13px;
	text-transform: uppercase;
	letter-spacing: .06em;
	color: var(--ch-color-text-muted);
	margin-bottom: 14px;
}

/* 熱門標籤：自動偵測出的標籤（不夠 5 個時用隨機分類補滿）+ 標籤雲 */
.hot-tag-highlight {
	display: block;
	background: var(--ch-color-bg);
	border: 1px solid var(--ch-color-border);
	border-radius: var(--ch-radius-sm);
	padding: 12px 14px;
	margin-bottom: 4px;
}
.hot-tag-highlight:hover { border-color: var(--ch-color-accent); }
.hot-tag-name { display: block; font-size: 16px; font-weight: 800; color: var(--ch-color-text); }
.hot-tag-count { display: block; font-size: 12px; color: var(--ch-color-text-muted); margin-top: 3px; }
.rail-chip-grid { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.rail-chip {
	font-size: 12.5px;
	font-weight: 600;
	color: var(--ch-color-text-muted);
	background: var(--ch-color-bg);
	border: 1px solid var(--ch-color-border);
	border-radius: 999px;
	padding: 5px 12px;
	display: inline-flex;
	align-items: center;
	gap: 6px;
}
.rail-chip:hover { color: var(--ch-color-text); border-color: var(--ch-color-accent); }
.rail-chip.is-top { color: var(--ch-color-accent); border-color: var(--ch-color-accent); background: rgba(36,84,255,.08); }
.rail-chip__count { font-size: 11px; opacity: .75; }

/* 文章頁側欄：目前分類位置（簡易 breadcrumb） */
.current-cat-crumb { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; font-size: 13px; }
.current-cat-crumb a { color: var(--ch-color-text-muted); }
.current-cat-crumb a:hover { color: var(--ch-color-accent); }
.current-cat-crumb__sep { color: var(--ch-color-text-muted); }
.current-cat-crumb__current { color: var(--ch-color-accent) !important; font-weight: 700; }

/* 熱門文章：排名清單（項目之間用底線分隔，一眼就看得出是分開的清單） */
.popular-list { display: flex; flex-direction: column; gap: 0; }
.popular-list__item {
	display: flex;
	align-items: center;
	gap: 12px;
	padding: 12px 0;
	border-bottom: 1px solid var(--ch-color-border);
}
.popular-list__item:first-child { padding-top: 0; }
.popular-list__item:last-child { padding-bottom: 0; border-bottom: none; }
.popular-list__rank {
	flex: 0 0 auto;
	width: 22px;
	font-size: 15px;
	font-weight: 800;
	color: var(--ch-color-text-muted);
	font-style: italic;
}
.popular-list__item:nth-child(-n+3) .popular-list__rank { color: var(--ch-color-accent); }
.popular-list__thumb {
	flex: 0 0 52px;
	width: 52px;
	height: 52px;
	border-radius: var(--ch-radius-sm);
	overflow: hidden;
	background: #fff;
}
.popular-list__thumb img { width: 100%; height: 100%; object-fit: cover; }
.popular-list__title {
	font-size: 13.5px;
	font-weight: 600;
	line-height: 1.4;
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
	color: var(--ch-color-text);
}
.popular-list__title:hover { color: var(--ch-color-accent); }

/* 依主題最新文章：每個主題各一小組 */
.topic-group { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--ch-color-border); }
.topic-group:first-of-type { margin-top: 0; padding-top: 0; border-top: 0; }
.topic-group__title { display: block; font-size: 14px; font-weight: 800; margin-bottom: 8px; }
.topic-group__title:hover { color: var(--ch-color-accent); }
.topic-group__list { display: flex; flex-direction: column; gap: 6px; }
.topic-group__list a {
	font-size: 13px;
	color: var(--ch-color-text-muted);
	display: block;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}
.topic-group__list a:hover { color: var(--ch-color-accent); }

/* =========================================================
   4. 一般文章列表 / 單篇文章 / 頁面
   ========================================================= */
.page-header { padding: 40px 0 24px; border-bottom: 1px solid var(--ch-color-border); margin-bottom: 32px; }
.page-header .page-title { font-size: 28px; }
.page-header .archive-description { color: var(--ch-color-text-muted); }

.content-layout {
	display: grid;
	grid-template-columns: minmax(0, 1fr) var(--ch-right-w);
	gap: var(--ch-gap);
	padding-bottom: 64px;
	transition: grid-template-columns .25s ease;
}
/* 桌機／平板版側欄旁的收合箭頭鈕收起來時：側欄縮成只剩按鈕的窄條，讓出空間給文章內容 */
.content-layout.sidebar-collapsed { grid-template-columns: minmax(0, 1fr) 32px; }
.content-layout.sidebar-collapsed .single-sidebar { display: none; }

.entry-list { display: flex; flex-direction: column; gap: 28px; }
.entry-card { display: grid; grid-template-columns: 220px 1fr; gap: 20px; }
.entry-card__thumb { border-radius: var(--ch-radius); overflow: hidden; aspect-ratio: 4/3; background: var(--ch-color-surface); }
.entry-card__thumb img { width: 100%; height: 100%; object-fit: cover; }
.entry-card__title { font-size: 20px; margin-bottom: 8px; }
.entry-card__excerpt { color: var(--ch-color-text-muted); font-size: 14px; }
.entry-card__meta { font-size: 12.5px; color: var(--ch-color-text-muted); margin-top: 8px; }

.single-post .entry-header { margin-bottom: 24px; }
.single-post .entry-title { font-size: 32px; }
.single-post .entry-meta { color: var(--ch-color-text-muted); font-size: 13px; margin-bottom: 20px; display: flex; gap: 14px; flex-wrap: wrap; }
.single-post .entry-thumbnail { border-radius: var(--ch-radius); overflow: hidden; margin-bottom: 28px; }
/* 文章內文排版：給 WordPress 內建編輯器（區塊編輯器）產生的內容用，
   標題階層、字級、行距都照通用 SEO／可讀性慣例（H1 只有標題本身用一次，
   內文從 H2 開始往下遞減；本文字級 17px、行高 1.8，方便閱讀與抓取）。 */
.single-post .entry-content {
	font-size: 17px;
	line-height: 1.8;
	color: var(--ch-color-text);
}
.single-post .entry-content > * + * { margin-top: 1.2em; }
.single-post .entry-content p { margin: 0; }
.single-post .entry-content h2 { font-size: 26px; font-weight: 800; line-height: 1.35; margin-top: 1.8em; }
.single-post .entry-content h3 { font-size: 21px; font-weight: 800; line-height: 1.4; margin-top: 1.6em; }
.single-post .entry-content h4 { font-size: 18px; font-weight: 700; line-height: 1.4; margin-top: 1.4em; }
.single-post .entry-content h5,
.single-post .entry-content h6 { font-size: 16px; font-weight: 700; line-height: 1.4; margin-top: 1.2em; }
.single-post .entry-content h2:first-child,
.single-post .entry-content h3:first-child,
.single-post .entry-content h4:first-child { margin-top: 0; }
.single-post .entry-content a { color: var(--ch-color-accent); text-decoration: underline; text-underline-offset: 2px; }
.single-post .entry-content a:hover { color: var(--ch-color-accent-dark); }
.single-post .entry-content strong, .single-post .entry-content b { font-weight: 700; }
.single-post .entry-content ul, .single-post .entry-content ol { padding-left: 1.4em; }
.single-post .entry-content ul { list-style: disc; }
.single-post .entry-content ol { list-style: decimal; }
.single-post .entry-content li + li { margin-top: 0.4em; }
.single-post .entry-content li > ul, .single-post .entry-content li > ol { margin-top: 0.4em; }
.single-post .entry-content hr { border: none; border-top: 1px solid var(--ch-color-border); margin: 2em 0; }
.single-post .entry-content img { max-width: 100%; height: auto; border-radius: var(--ch-radius); display: block; }
.single-post .entry-content figure { margin: 0; }
.single-post .entry-content figcaption { font-size: 13px; color: var(--ch-color-text-muted); text-align: center; margin-top: 8px; }
.single-post .entry-content .alignleft { float: left; margin: 4px 20px 12px 0; }
.single-post .entry-content .alignright { float: right; margin: 4px 0 12px 20px; }
.single-post .entry-content .aligncenter { margin-left: auto; margin-right: auto; }
.single-post .entry-content pre {
	background: var(--ch-color-surface);
	border: 1px solid var(--ch-color-border);
	border-radius: var(--ch-radius-sm);
	padding: 16px;
	overflow-x: auto;
	font-size: 14px;
	line-height: 1.6;
}
.single-post .entry-content code {
	background: var(--ch-color-surface);
	border-radius: 4px;
	padding: 2px 6px;
	font-size: 0.9em;
}
.single-post .entry-content pre code { background: none; padding: 0; }
.single-post .entry-content table {
	width: 100%;
	border-collapse: collapse;
	font-size: 15px;
}
.single-post .entry-content th, .single-post .entry-content td {
	border: 1px solid var(--ch-color-border);
	padding: 10px 14px;
	text-align: left;
}
.single-post .entry-content th { background: var(--ch-color-surface); font-weight: 700; }
.single-post .entry-content blockquote {
	margin: 24px 0;
	padding: 12px 20px;
	border-left: 3px solid var(--ch-color-accent);
	background: var(--ch-color-surface);
	color: var(--ch-color-text-muted);
}
.single-post .entry-tags { margin-top: 28px; display: flex; gap: 8px; flex-wrap: wrap; }
.single-post .entry-tags a {
	font-size: 12.5px;
	padding: 5px 12px;
	border-radius: 999px;
	background: var(--ch-color-surface);
	border: 1px solid var(--ch-color-border);
}

.post-navigation { display: flex; justify-content: space-between; gap: 20px; margin: 40px 0; padding-top: 24px; border-top: 1px solid var(--ch-color-border); }
.post-navigation a { font-size: 14px; font-weight: 600; max-width: 45%; }
.post-navigation .nav-subtitle { display: block; font-size: 11px; color: var(--ch-color-text-muted); text-transform: uppercase; margin-bottom: 4px; }

/* 延伸閱讀：同標籤文章，項目之間有底線分隔，清楚分開 */
.entry-related { margin: 40px 0 0; padding-top: 28px; border-top: 1px solid var(--ch-color-border); }
.entry-related__title { font-size: 20px; font-weight: 800; margin: 0 0 18px; }
.entry-related__list { list-style: none; margin: 0; padding: 0; }
.entry-related__item {
	display: flex;
	align-items: center;
	gap: 14px;
	padding: 14px 0;
	border-bottom: 1px solid var(--ch-color-border);
}
.entry-related__item:first-child { padding-top: 0; }
.entry-related__item:last-child { padding-bottom: 0; border-bottom: none; }
.entry-related__thumb {
	flex: 0 0 84px;
	width: 84px;
	height: 64px;
	border-radius: var(--ch-radius-sm);
	overflow: hidden;
	background: var(--ch-color-surface);
}
.entry-related__thumb img,
.entry-related__thumb .ph-fallback { width: 100%; height: 100%; }
.entry-related__thumb img { object-fit: cover; display: block; }
.entry-related__body { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.entry-related__title-link {
	font-size: 14.5px;
	font-weight: 700;
	line-height: 1.4;
	color: var(--ch-color-text);
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
}
.entry-related__title-link:hover { color: var(--ch-color-accent); }
.entry-related__date { font-size: 12px; color: var(--ch-color-text-muted); }

/* 文章頁側欄／首頁右欄：手機、平板預設隱藏，用開關按鈕控制顯示
   （文章頁見 assets/js/main.js initSingleSidebarToggle；首頁見 front-page.php 內對應 script） */
.single-sidebar-toggle,
.portal-sidebar-toggle {
	display: none;
	align-items: center;
	gap: 8px;
	width: 100%;
	margin-bottom: 16px;
	padding: 12px 16px;
	border: 1px solid var(--ch-color-border);
	border-radius: 999px;
	background: var(--ch-color-surface);
	font-size: 14px;
	font-weight: 700;
	color: var(--ch-color-text);
	cursor: pointer;
}
.single-sidebar-toggle:hover,
.portal-sidebar-toggle:hover { border-color: var(--ch-color-accent); color: var(--ch-color-accent); }
.single-sidebar-toggle__icon,
.portal-sidebar-toggle__icon { display: flex; width: 18px; height: 18px; }
.single-sidebar-toggle__icon svg,
.portal-sidebar-toggle__icon svg { width: 100%; height: 100%; }

/* 抽屜背景遮罩：點一下可以關閉，只在手機／平板（開關按鈕出現時）才會用到 */
.sidebar-drawer-backdrop {
	display: none;
	position: fixed;
	inset: 0;
	background: rgba(15,18,25,.45);
	z-index: 205;
	opacity: 0;
	transition: opacity .25s ease;
}
.sidebar-drawer-backdrop.is-open { opacity: 1; }

/* 抽屜面板右上角的關閉鈕 */
.sidebar-drawer-close {
	display: none;
	align-items: center;
	justify-content: center;
	margin-left: auto;
	width: 32px;
	height: 32px;
	flex: 0 0 auto;
	border: 1px solid var(--ch-color-border);
	border-radius: 50%;
	background: #fff;
	color: var(--ch-color-text);
	cursor: pointer;
}
.sidebar-drawer-close:hover { border-color: var(--ch-color-accent); color: var(--ch-color-accent); }
.sidebar-drawer-close svg { width: 16px; height: 16px; }

/* 抽屜開啟時鎖住背景捲動 */
body.ch-drawer-open { overflow: hidden; }

/* 麵包屑導覽（見 ch_render_breadcrumb()），目前主要用在文章頁標題上方 */
.breadcrumb { margin: 20px 0 0; font-size: 13px; }
.breadcrumb ol {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-wrap: wrap;
	align-items: center;
}
.breadcrumb li { display: flex; align-items: center; color: var(--ch-color-text-muted); }
.breadcrumb li:not(:last-child)::after { content: "/"; margin: 0 8px; color: var(--ch-color-border); }
.breadcrumb a { color: var(--ch-color-text-muted); }
.breadcrumb a:hover { color: var(--ch-color-accent); }
.breadcrumb li:last-child span {
	color: var(--ch-color-text);
	font-weight: 600;
	max-width: 320px;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
}

.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 32px; }
.pagination a, .pagination span {
	display: inline-flex; align-items: center; justify-content: center;
	min-width: 38px; height: 38px; padding: 0 10px;
	border-radius: var(--ch-radius-sm); border: 1px solid var(--ch-color-border);
	font-size: 13px; font-weight: 600;
}
.pagination .current { background: var(--ch-color-text); color: #fff; border-color: var(--ch-color-text); }
.pagination a:hover { border-color: var(--ch-color-accent); color: var(--ch-color-accent); }

/* Comments */
.comments-area { margin-top: 48px; }
.comments-title { font-size: 20px; margin-bottom: 20px; }
.comment-list { display: flex; flex-direction: column; gap: 20px; }
.comment-body { border: 1px solid var(--ch-color-border); border-radius: var(--ch-radius); padding: 16px; }
.comment-author { font-weight: 700; font-size: 14px; }
.comment-metadata { font-size: 12px; color: var(--ch-color-text-muted); margin-bottom: 8px; }
.comment-form input, .comment-form textarea {
	width: 100%; padding: 10px 12px; border: 1px solid var(--ch-color-border);
	border-radius: var(--ch-radius-sm); margin-bottom: 12px; background: #fff;
}

/* Sidebar widgets (single/page/archive) */
.widget { margin-bottom: 28px; background: var(--ch-color-surface); border: 1px solid var(--ch-color-border); border-radius: var(--ch-radius); padding: 20px; }
.widget-title { font-size: 15px; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 14px; }

/* 側邊欄「搜尋」區塊小工具（區塊編輯器的核心 Search 區塊，本身不吃主題樣式，
   預設會長得又大又醜——這裡把它縮小、跟其他小工具一致） */
.widget .wp-block-search { width: 100%; }
.widget .wp-block-search__label {
	display: block;
	font-size: 12px;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: .05em;
	color: var(--ch-color-text-muted);
	margin-bottom: 8px;
}
.widget .wp-block-search__inside-wrapper {
	display: flex;
	justify-content: center;
	border: none;
	gap: 8px;
	max-width: 260px;
	margin: 0 auto;
}
.widget .wp-block-search__input {
	flex: 1;
	min-width: 0;
	width: auto;
	max-width: 180px;
	border: 1px solid var(--ch-color-border);
	border-radius: 999px;
	padding: 9px 16px;
	font-size: 14px;
	background: #fff;
}
.widget .wp-block-search__input:focus { outline: 2px solid var(--ch-color-accent); }
.widget .wp-block-search__button {
	flex: 0 0 auto;
	white-space: nowrap;
	border: none;
	border-radius: 999px;
	padding: 9px 18px;
	font-size: 14px;
	font-weight: 600;
	background: var(--ch-color-accent);
	color: #fff;
}
.widget .wp-block-search__button:hover { background: var(--ch-color-accent-dark); }
.widget .wp-block-search__button svg { width: 16px; height: 16px; }

/* 小工具區塊裡的其他核心區塊清單（例如「最新文章」區塊/小工具）本身不吃主題樣式，
   預設會擠成一整塊看不出分項——這裡統一加上分隔線＋前導符號，跟 .popular-list 一致的
   「清楚分隔」原則，未來管理員在小工具區加任何清單型區塊也會自動套用。 */
.widget .wp-block-latest-posts__list,
.widget .wp-block-latest-comments,
.widget ul {
	list-style: none;
	margin: 0;
	padding: 0;
}
.widget .wp-block-latest-posts__list li,
.widget .wp-block-latest-comments li,
.widget ul li {
	padding: 12px 0 12px 18px;
	border-bottom: 1px solid var(--ch-color-border);
	font-size: 13.5px;
	line-height: 1.5;
	position: relative;
}
.widget .wp-block-latest-posts__list li::before,
.widget .wp-block-latest-comments li::before,
.widget ul li::before {
	content: "›";
	position: absolute;
	left: 2px;
	top: 12px;
	color: var(--ch-color-accent);
	font-weight: 800;
}
.widget .wp-block-latest-posts__list li:first-child,
.widget .wp-block-latest-comments li:first-child,
.widget ul li:first-child { padding-top: 0; }
.widget .wp-block-latest-posts__list li:last-child,
.widget .wp-block-latest-comments li:last-child,
.widget ul li:last-child { padding-bottom: 0; border-bottom: none; }
.widget .wp-block-latest-posts__list a,
.widget ul li a { font-weight: 600; color: var(--ch-color-text); }
.widget .wp-block-latest-posts__list a:hover,
.widget ul li a:hover { color: var(--ch-color-accent); }
.widget .wp-block-latest-posts__post-date {
	display: block;
	font-size: 11.5px;
	color: var(--ch-color-text-muted);
	margin-top: 4px;
}
/* 清單型區塊本身若有子清單（例如巢狀選單小工具），不套用前導符號／分隔線，避免样式衝突 */
.widget ul ul,
.widget ul ul li { padding-left: 0; border-bottom: none; }
.widget ul ul li::before { content: none; }

/* =========================================================
   5. Footer
   ========================================================= */
.site-footer { background: var(--ch-color-text); color: rgba(255,255,255,.75); margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; padding: 56px 0 32px; }
.footer-grid .widget-title { color: #fff; font-size: 14px; }
.footer-grid .widget { background: transparent; border: none; padding: 0; }
/* 頁尾背景是深色，小工具清單（例如「彙整」「分類」預設 WordPress 小工具）裡的連結
   原本會沿用 .widget ul li a 的深色文字樣式，在深色底下幾乎看不見，這裡蓋掉改成
   淺色文字，滑鼠移過去再變全白。 */
.footer-grid .widget ul li a,
.footer-grid .widget .wp-block-latest-posts__list a { color: rgba(255,255,255,.75); }
.footer-grid a:hover,
.footer-grid .widget ul li a:hover,
.footer-grid .widget .wp-block-latest-posts__list a:hover { color: #fff; }
.site-footer .footer-bottom {
	border-top: 1px solid rgba(255,255,255,.12);
	padding: 18px 0;
	font-size: 12.5px;
	display: flex;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 8px;
}

/* =========================================================
   6. 回到頂部按鈕（全站固定，捲動一段距離後才出現）
   ========================================================= */
.back-to-top {
	position: fixed;
	right: 24px;
	bottom: 24px;
	z-index: 90;
	width: 44px;
	height: 44px;
	border-radius: 50%;
	border: 1px solid var(--ch-color-border);
	background: #fff;
	color: var(--ch-color-text);
	display: flex;
	align-items: center;
	justify-content: center;
	box-shadow: var(--ch-shadow-hover);
	cursor: pointer;
	opacity: 0;
	transform: translateY(10px);
	pointer-events: none;
	transition: opacity .2s ease, transform .2s ease, background .15s ease, color .15s ease;
}
.back-to-top.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-to-top:hover { background: var(--ch-color-accent); color: #fff; border-color: var(--ch-color-accent); }

/* =========================================================
   7. Responsive
   ========================================================= */
@media (max-width: 1180px) {
	.portal-layout { grid-template-columns: minmax(0,1fr) 280px; }
	.content-layout { grid-template-columns: minmax(0,1fr) 280px; }
}

@media (max-width: 960px) {
	.category-tile-grid { grid-template-columns: repeat(2, 1fr); }

	/* 手機／平板：3 欄改成一列一欄的自動輪播（見 front-page.php 內的輪播 script） */
	.card-row,
	.picks-row {
		display: flex;
		grid-template-columns: none;
		overflow-x: auto;
		scroll-snap-type: x mandatory;
		gap: 0;
		-webkit-overflow-scrolling: touch;
		scrollbar-width: none;
	}
	.card-row::-webkit-scrollbar,
	.picks-row::-webkit-scrollbar { display: none; }
	.article-card,
	.pick-card {
		flex: 0 0 100%;
		scroll-snap-align: start;
	}
	.carousel-arrow { display: flex; }
	.carousel-dots { display: flex; }
}

@media (max-width: 880px) {
	.portal-layout { grid-template-columns: 1fr; padding-top: 20px; }
	.content-layout { grid-template-columns: 1fr; }
	.entry-card { grid-template-columns: 1fr; }
	.footer-grid { grid-template-columns: repeat(2, 1fr); }

	/* 首頁右欄／文章頁側欄：手機、平板改用開關按鈕控制，從畫面右邊滑出（不是往下展開），
	   按鈕本身排到最上面（分類區塊之前），不用滑到頁面最下面才看得到。 */
	.portal-sidebar-wrap { order: -1; margin-bottom: 20px; }
	.portal-sidebar-toggle,
	.single-sidebar-toggle { display: flex; }

	/* 桌機版的收合箭頭鈕在這個寬度改用開關按鈕＋抽屜取代，就不用顯示了 */
	.sidebar-collapse-toggle { display: none; }

	.sidebar-drawer-backdrop { display: block; pointer-events: none; }
	.sidebar-drawer-backdrop.is-open { pointer-events: auto; }
	.sidebar-drawer-close { display: flex; }

	.portal-sidebar,
	.single-sidebar {
		position: fixed;
		top: 0;
		right: 0;
		height: 100vh;
		height: 100dvh;
		width: min(86vw, 340px);
		max-width: 340px;
		margin: 0;
		background: var(--ch-color-bg);
		box-shadow: -12px 0 28px rgba(16,24,40,.18);
		padding: 24px 20px;
		overflow-y: auto;
		transform: translateX(100%);
		transition: transform .3s ease;
		z-index: 210;
	}
	.portal-sidebar.is-open,
	.single-sidebar.is-open { transform: translateX(0); }
}

/* ---- 手機版：頁首縮小、分類磚塊改一列一個（圖片+標題） ---- */
@media (max-width: 680px) {
	.footer-grid { grid-template-columns: 1fr; padding: 40px 0 20px; }

	:root { --ch-header-h: 56px; }
	.site-header-inner { gap: 12px; }
	.site-branding img.custom-logo { max-height: 30px; }
	.site-title { font-size: 16px; }
	.main-navigation a { padding: 7px 12px; font-size: 13.5px; }
	.nav-scroll-arrow { width: 22px; height: 22px; }
	.nav-scroll-arrow svg { width: 11px; height: 11px; }

	.category-tile-grid { grid-template-columns: 1fr; gap: 14px; }
	.category-tile { aspect-ratio: 16 / 10; }
	.category-tile__body { padding: 14px 16px; }
	.category-tile__name { font-size: 17px; }
	.category-tile__count { display: none; } /* 手機版依需求只顯示圖片＋標題 */

	.back-to-top { right: 16px; bottom: 16px; width: 40px; height: 40px; }

	/* 「熱門介紹」3 個分類磚塊：手機版改一列一個 */
	.intro-row { grid-template-columns: 1fr; gap: 14px; }

	/* 「最新文章」跑馬燈：手機版每行矮一點，字級略縮小 */
	.news-reel__item { height: 48px; padding: 0 4px; }
	.news-reel__item a { font-size: 13.5px; gap: 8px; }

	.entry-related__thumb { flex-basis: 68px; width: 68px; height: 52px; }
}

@media (max-width: 560px) {
	.entry-card__thumb { aspect-ratio: 16/10; }
}