/* =========================================================
   首頁 RWD 改版覆蓋樣式 (index-rwd-override.css)
   依 2026-07 設計稿製作,載入順序在 index.min.css 之後,
   用於覆蓋首頁版型;非首頁不載入此檔。
   ========================================================= */

/* ─────────────────────────────
   預設主題：草木綠 (Sage Green) - 對齊設計稿綠 A
   ───────────────────────────── */
:root {
    /* 圓角系統 (Radius Design Tokens) */
    --radius-sm: 4px;      /* 內層滑動容器、微小微調 */
    --radius-md: 6px;      /* 表單、按鈕 */
    --radius-lg: 10px;     /* 標準卡片、縮圖 (含 .news-thumb) */
    --radius-xl: 14px;     /* 大型主容器 (電子報、一體化卡片) */
    --radius-pill: 999px;  /* 膠囊造型標籤/按鈕 */
    --radius-circle: 50%;  /* 正圓徽章、圓形箭頭 */
}

:root, [data-theme="green"] {
    /* 4 款核心色碼定義 (日後調整顏色只需改此處) */
    --color-green-bg: #dfedc8;          /* 1. 底色：交替區塊底色、漸層色 */
    --color-green-panel: #ccdba5;       /* 2. 內容面板色：科學專題卡片底色、文字底色 */
    --color-green-accent: #84ae63;      /* 3. 主強調色：英文副標題、我要投稿按鈕、熱門文章標籤 */
    --color-green-highlight: #c0ff6a;   /* 4. 亮綠強調色：最新文章 NEWS 亮綠膠囊標籤 */

    /* 語義化變數對應 (供首頁元件直接引用) */
    --rwd-bg-alt: var(--color-green-bg);                   /* 推薦活動/科學專題交替底色 */
    --rwd-bg-hero: linear-gradient(180deg, #ffffff 0%, var(--color-green-bg) 100%); /* 頂部最新文章漸層底色 */
    --rwd-accent: var(--color-green-accent);               /* 英文副標題色、線條色 */
    --rwd-accent-hover: #658c49;                           /* 懸停稍深 */
    --rwd-line: var(--color-green-panel);                  /* 區塊裝飾細線 */
    --rwd-news-panel-bg: var(--color-green-panel);         /* 最新文章文字面板底色 */
    --rwd-news-panel-color: #2B2B2B;                       /* 深黑易讀文字 */
    --rwd-news-label-bg: var(--color-green-highlight);     /* NEWS 膠囊亮綠底色 */
    --rwd-news-label-color: #2B2B2B;                       /* 亮綠底配深黑文字，高對比易讀 */
    --rwd-news-label-tag: #2B2B2B;                         /* 綠色主題下 NEWS 標籤文字為黑色，清晰易讀 */
    --rwd-btn-accent-bg: var(--color-green-accent);        /* 我要投稿按鈕綠底 */
    --rwd-btn-accent-color: #ffffff;
    --rwd-tag-bg: var(--color-green-accent);               /* 熱門文章草綠標籤底色 */
    --rwd-tag-color: #ffffff;
    --rwd-sproject-content-bg: var(--color-green-panel);   /* 科學專題文字淡綠底 */
    --rwd-frame-border: #84ae63;                          /* 最新文章大圖外框預設色 */
    --rwd-frame-gradient: linear-gradient(135deg, var(--color-green-highlight) 0%, var(--color-green-accent) 100%); /* 亮綠漸層外框 */
    --rwd-frame-shadow: 0 16px 36px rgba(100, 140, 60, 0.18), 0 4px 12px rgba(0, 0, 0, 0.08); /* 柔和綠光環境陰影 */
    --rwd-newsletter-bg: #F3E3C1;                          /* 電子報卡片底色：暖米金底色 */
    --rwd-dark: #2B2B2B;
    --rwd-footer-bg: #282829;
    --rwd-orange: #F0A22E;
    --rwd-yellow: var(--color-green-highlight);
}

/* ─────────────────────────────
   備選主題：米黃色 (Cream / Warm Gold) - 現行測試站風格
   ───────────────────────────── */
[data-theme="cream"] {
    --rwd-bg-alt: #F3ECD6;               /* 暖米黃色底色 */
    --rwd-bg-hero: #F3ECD6;
    --rwd-accent: #A98B2D;               /* 金棕色英文副標 */
    --rwd-accent-hover: #8A701F;
    --rwd-line: #D9CFB4;                 /* 米金裝飾細線 */
    --rwd-news-panel-bg: #BDAD89;        /* 卡其底色 */
    --rwd-news-panel-color: #ffffff;     /* 白色文字 */
    --rwd-news-label-bg: #0E0F0E;        /* 黑底標籤 */
    --rwd-news-label-color: #F2C54D;     /* 黃字 */
    --rwd-news-label-tag: #F2C54D;       /* 米黃主題下 NEWS 文字維持鮮黃 */
    --rwd-btn-accent-bg: #F2C54D;        /* 鮮黃按鈕底 */
    --rwd-btn-accent-color: #3A2F00;
    --rwd-tag-bg: #354870;               /* 深藍灰標籤底 */
    --rwd-tag-color: #ffffff;
    --rwd-sproject-content-bg: #EBE1CD;  /* 卡其文字底色 */
    --rwd-frame-border: #C9A63F;         /* 米黃主題下金邊外框 */
    --rwd-frame-gradient: linear-gradient(135deg, #F2C54D 0%, #C9A63F 100%); /* 金邊漸層外框 */
    --rwd-frame-shadow: 0 16px 36px rgba(169, 139, 45, 0.18), 0 4px 12px rgba(0, 0, 0, 0.08); /* 柔和暖金陰影 */
    --rwd-newsletter-bg: #F3ECD6;        /* 米黃主題電子報底色 */
    --rwd-dark: #2B2B2B;
    --rwd-footer-bg: #282829;
    --rwd-orange: #F0A22E;
    --rwd-yellow: #F2C54D;
}

/* ─────────────────────────────
   備選主題：經典原版 (Classic Original) - 科技藍/灰/黑金原版
   ───────────────────────────── */
[data-theme="original"] {
    --rwd-bg-alt: #f5f5f5;               /* 原版淺灰底色 */
    --rwd-bg-hero: #f5f5f5;
    --rwd-accent: #ffbc00;               /* 原版經典亮黃色強調色 (按鈕、邊框、底線) */
    --rwd-accent-text: #8f6a05;          /* 原版經典文字強調色 (英文副標、文字連結，淺底易讀) */
    --rwd-accent-hover: #705202;         /* 文字連結懸停稍深色 */
    --rwd-line: #a8a8a8;                 /* 原版灰線 */
    --rwd-news-panel-bg: #ffffff;        /* 白底面板 */
    --rwd-news-panel-color: #292929;     /* 深黑文字 */
    --rwd-news-label-bg: #ffbc00;        /* 經典亮黃標籤 */
    --rwd-news-label-color: #292929;     /* 黑字 */
    --rwd-news-label-tag: #292929;
    --rwd-btn-accent-bg: #ffbc00;        /* 經典黃底按鈕 */
    --rwd-btn-accent-color: #292929;
    --rwd-tag-bg: #0d65d9;               /* 原版科技藍標籤 */
    --rwd-tag-color: #ffffff;
    --rwd-sproject-content-bg: #ffffff;  /* 白底卡片 */
    --rwd-frame-border: #ffbc00;         /* 亮黃框 */
    --rwd-frame-gradient: linear-gradient(135deg, #ffbc00 0%, #0d65d9 100%);
    --rwd-frame-shadow: 0 16px 36px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.08);
    --rwd-newsletter-bg: #FFEBB2;                          /* 原版經典暖黃底色 */
    --rwd-dark: #292929;
    --rwd-footer-bg: #282829;
    --rwd-orange: #ffbc00;
    --rwd-yellow: #ffbc00;
}

/* 經典原版專屬細節微調 */
[data-theme="original"] .sec-tit-en,
[data-theme="original"] .sec-more {
    color: #8f6a05;
}
[data-theme="original"] .sec-more:hover {
    color: #705202;
}
[data-theme="original"] .event-card-time {
    color: #292929;
}
[data-theme="original"] .event-card:hover .event-card-tit,
[data-theme="original"] .popular-card:hover .popular-card-tit,
[data-theme="original"] .sproject-card:hover .sproject-card-tit,
[data-theme="original"] .talkx-item:hover .talkx-item-tit {
    color: #8f6a05;
}

/* ---------- 共用 ---------- */
body {
    font-family: "Noto Sans TC", "Microsoft Jhenghei", 微軟正黑體, "Trebuchet MS", Arial, "Helvetica Neue", Helvetica, sans-serif;
}

.home-rwd { background: #fff; }

.news-wrap, .video-wrap, .events-wrap, .popular-wrap,
.sproject-wrap, .techtalk-wrap, .talk-picks-wrap { padding: 60px 0; }

.news-wrap { background: var(--rwd-bg-hero, var(--rwd-bg-alt)); }
.events-wrap, .sproject-wrap { background: var(--rwd-bg-alt); }
.video-wrap, .popular-wrap, .techtalk-wrap, .talk-picks-wrap { background: #fff; }

/* 區塊標題列:中文+英文+細線+see more */
.sec-head { display: flex; align-items: center; gap: 18px; margin-bottom: 36px; }
.sec-tit { display: flex; align-items: baseline; gap: 14px; margin: 0; }
.sec-tit-cn { font-size: 30px; font-weight: 700; color: var(--rwd-dark); letter-spacing: .05em; }
.sec-tit-en { font-size: 19px; font-weight: 700; color: var(--rwd-accent); letter-spacing: .14em; }
.sec-head-line { flex: 1 1 auto; height: 1px; background: var(--rwd-line); }
.sec-more { flex: 0 0 auto; color: var(--rwd-accent); font-size: 15px; letter-spacing: .05em; white-space: nowrap; }
.sec-more:hover { color: var(--rwd-accent-hover); text-decoration: none; }

/* 文字行數限制(補足既有 css 缺少的行數) */
.truncate-4 {
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* =========================================================
   最新文章 NEWS 大 Banner
   相框與文字面板固定,內容在框內左右滑動
   ========================================================= */
.news-hero { position: relative; max-width: 1000px; margin: 0 auto; }

.news-stage { display: flex; align-items: center; padding: 28px 0; }

/* 金邊/亮綠漸層相框(固定不動) */
.news-frame {
    flex: 0 0 54%;
    max-width: 54%;
    min-width: 0;
    overflow: hidden;
    position: relative;
    z-index: 2;
    padding: 10px;
    border: 2px solid transparent;
    background: linear-gradient(#fff, #fff) padding-box,
                var(--rwd-frame-gradient, linear-gradient(135deg, #c0ff6a 0%, #84ae63 100%)) border-box;
    border-radius: 8px;
    box-shadow: var(--rwd-frame-shadow, 0 16px 36px rgba(100, 140, 60, 0.18), 0 4px 12px rgba(0, 0, 0, 0.08));
}
.news-frame .swiper { width: 100%; overflow: hidden; border-radius: var(--radius-sm); }

/* 主圖 4:3 */
.news-media-ratio { position: relative; width: 100%; padding-top: 75%; overflow: hidden; }
.news-media-ratio img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; }
.news-img-link { display: block; }

/* 文字面板(固定不動),較相框矮,相框上下凸出 */
.news-slide-panel {
    flex: 1 1 auto;
    position: relative;
    background: var(--rwd-news-panel-bg);
    color: var(--rwd-news-panel-color);
    padding: 40px 48px 40px 96px;
    margin-left: -60px;
    border-radius: var(--radius-sm);
    align-self: center;
    min-width: 0;
    max-width: 100%; /* 防止內容理想寬度撐爆 flex 行寬(swiper 量測會失準) */
}
.news-label {
    position: absolute;
    top: -12px;
    display: inline-block;
    background: var(--rwd-news-label-bg);
    color: var(--rwd-news-label-color);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .1em;
    padding: 6px 16px;
    margin-bottom: 20px;
}
.news-label span { color: var(--rwd-news-label-tag, #2B2B2B); margin-left: 6px; }

/* 文字軌:在面板內滑動 */
.sp-news-txt { width: 100%; overflow: hidden; }
.news-slide-link { display: block; color: var(--rwd-news-panel-color); }
.news-slide-link:hover { color: var(--rwd-news-panel-color); text-decoration: none; }
.news-slide-link:hover .news-slide-tit { text-decoration: underline; }
.news-slide-tit { font-size: 26px; font-weight: 700; line-height: 1.55; color: var(--rwd-news-panel-color); margin: 0 0 14px; }
.news-slide-desc { font-size: 15px; line-height: 1.9; color: var(--rwd-news-panel-color); opacity: .88; margin: 0; }

/* 輪播控制列 (包含切換箭頭與 Dot 導航)
   電腦版對齊左側圖片(news-frame, 寬度 54%)的正下方水平置中 */
.news-thumbs {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 54%;
    gap: 16px;
    margin: 16px 0 0 0;
}

/* 輪播 Dot 樣式 */
.news-dots {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 0 4px;
}
.news-dots .news-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: var(--radius-circle);
    background: #bbb;
    opacity: 0.6;
    cursor: pointer;
    border: none;
    padding: 0;
    transition: all 0.25s ease;
}
.news-dots .news-dot:hover {
    opacity: 1;
}
.news-dots .news-dot.is-active {
    background: var(--rwd-dark, #2B2B2B);
    opacity: 1;
    width: 24px;
    border-radius: var(--radius-pill);
}

.news-thumbs-prev, .news-thumbs-next {
    flex: 0 0 auto;
    position: relative;
    width: 44px;
    height: 44px;
    border: 1px solid #8d8d8d;
    border-radius: var(--radius-circle);
    background: transparent;
    transition: background .2s, border-color .2s;
    cursor: pointer;
}
.news-thumbs-prev:hover, .news-thumbs-next:hover { background: #fff; border-color: var(--rwd-gold); }
.news-thumbs-prev::before, .news-thumbs-next::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 10px;
    border-left: 2px solid #555;
    border-bottom: 2px solid #555;
}
.news-thumbs-prev::before { transform: translate(-30%, -50%) rotate(45deg); }
.news-thumbs-next::before { transform: translate(-70%, -50%) rotate(225deg); }

/* =========================================================
   影音專區 VIDEO(覆蓋舊版 overlay 樣式)
   ========================================================= */
.video-wrap .sp-video { overflow: hidden; }
.video-wrap .sp-video .swiper-slide { width: 56%; }

/* 影片區塊:封面 + 播放鈕,點擊後就地嵌入播放器 */
.video-wrap .video-embed {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
}
/* 封面圖填滿 16:9 容器(舊 css 的填滿規則綁在 .video-slide 舊類名,這裡明確重定義) */
.video-wrap .video-embed .ratio-video {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    overflow: hidden;
    margin: 0;
}
.video-wrap .video-embed .ratio-video img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.video-wrap .video-cover-link { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 2; }

.video-wrap .video-play-btn {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    background: transparent;
    border: 0;
    cursor: pointer;
    padding: 0;
}
.video-wrap .video-play-btn::before {
    content: '';
    position: absolute;
    transform: translate(-50%, -50%);
    width: 64px;
    height: 64px;
    border-radius: var(--radius-circle);
    background: rgba(0, 0, 0, .55);
    box-shadow: 0 2px 12px rgba(0, 0, 0, .35);
    transition: background .2s, transform .2s;
}
.video-wrap .video-play-btn::after {
    content: '';
    position: absolute;
    transform: translate(-50%, -50%);
    border-style: solid;
    border-width: 13px 0 13px 22px;
    border-color: transparent transparent transparent #fff;
    transition: transform .2s;
}
.video-wrap .video-play-btn:hover::before { background: rgba(0, 0, 0, .8); transform: translate(-50%, -50%) scale(1.08); }
.video-wrap .video-play-btn:hover::after { transform: translate(-50%, -50%) scale(1.08); }
/* 播放中:隱藏播放鈕,iframe 覆蓋封面 */
.video-wrap .video-embed.is-playing .video-play-btn { display: none; }
.video-wrap .video-embed-iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
    z-index: 3;
}

.video-wrap .video-slide-content {
    position: static;
    background: none;
    padding: 14px 4px 0;
}
.video-wrap .video-title-link { display: block; color: inherit; }
.video-wrap .video-title-link:hover { color: inherit; text-decoration: none; }
.video-wrap .video-title-link:hover .video-slide-tit { text-decoration: underline; }
.video-wrap .video-slide-tit {
    font-size: 20px;
    font-weight: 700;
    color: var(--rwd-dark);
    line-height: 1.6;
}
.video-wrap .video-slide-desc { display: none; }

/* 兩側影片維持全彩(比照設計稿);僅播放鈕只在置中片顯示重點 */
.video-wrap .sp-video .swiper-slide { transition: opacity .3s; }

.video-wrap .sp-video-control {
    position: relative !important;
    top: auto !important;
    bottom: auto !important;
    left: auto !important;
    right: auto !important;
    width: auto !important;
    height: auto !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 16px !important;
    margin: 24px 0 0 !important;
}
.video-wrap .sp-video-control::after {
    display: none !important;
}
.video-wrap .sp-video-control .swiper-button-prev,
.video-wrap .sp-video-control .swiper-button-next {
    position: relative;
    top: auto;
    left: auto;
    right: auto;
    transform: none; /* 蓋掉舊版 css 的 rotate(180deg),否則箭頭方向相反 */
    background-image: none;
    margin: 0;
    width: 44px;
    height: 44px;
    border: 1px solid #8d8d8d;
    border-radius: var(--radius-circle);
    background: transparent;
    transition: background .2s, border-color .2s;
}
.video-wrap .sp-video-control .swiper-button-prev:hover,
.video-wrap .sp-video-control .swiper-button-next:hover { background: var(--rwd-cream); border-color: var(--rwd-gold); }
.video-wrap .sp-video-control .swiper-button-prev::after,
.video-wrap .sp-video-control .swiper-button-next::after { display: none; }
.video-wrap .sp-video-control .swiper-button-prev::before,
.video-wrap .sp-video-control .swiper-button-next::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 10px;
    border-left: 2px solid #555;
    border-bottom: 2px solid #555;
}
.video-wrap .sp-video-control .swiper-button-prev::before { transform: translate(-30%, -50%) rotate(45deg); }
.video-wrap .sp-video-control .swiper-button-next::before { transform: translate(-70%, -50%) rotate(225deg); }

@media (max-width: 991.98px) {
    .video-wrap .sp-video .swiper-slide { width: 82%; }
}

/* =========================================================
   推薦活動 EVENTS
   ========================================================= */
.btn-submit-activity {
    flex: 0 0 auto;
    background: var(--rwd-btn-accent-bg);
    color: var(--rwd-btn-accent-color);
    font-size: 15px;
    font-weight: 700;
    padding: 8px 24px;
    border-radius: var(--radius-pill);
    white-space: nowrap;
    transition: opacity .2s, background .2s;
}
.btn-submit-activity:hover { opacity: .88; color: var(--rwd-btn-accent-color); text-decoration: none; }

.event-row > [class*="col-"] { margin-bottom: 28px; }
.event-card { display: block; color: inherit; }
.event-card:hover { text-decoration: none; color: inherit; }
.event-card-img {
    position: relative;
    width: 100%;
    padding-top: 75%; /* 4:3 */
    margin: 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0, 0, 0, .12);
}
.event-card-img img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.event-card-date {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 18px 0 12px;
    padding-bottom: 10px;
    border-bottom: 3px solid var(--rwd-accent); /* 設計稿綠 A:日期列下方強調色底線 */
}
.event-card-day {
    font-size: 34px;
    font-weight: 800;
    line-height: 1;
    color: #1e1e1e;
    letter-spacing: .02em;
}
/* 時間徽章:正圓形綠底/強調色底,起訖時間兩行堆疊,白字置中 */
.event-card-time {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-circle);
    background: var(--rwd-accent);
    color: #fff;
    font-weight: 700;
}
.event-card-time i {
    font-style: normal;
    font-size: 11px;
    line-height: 1.25;
    letter-spacing: .02em;
}
.event-card-year { display: none; }
.event-card-tit { font-size: 16px; font-weight: 600; color: var(--rwd-dark); line-height: 1.7; }
.event-card:hover .event-card-tit { text-decoration: underline; }

/* =========================================================
   熱門文章 POPULAR
   ========================================================= */
.popular-row > [class*="col-"] { margin-bottom: 28px; }
.popular-card { display: block; color: inherit; }
.popular-card:hover { text-decoration: none; color: inherit; }
.popular-card-img { border-radius: var(--radius-lg); overflow: hidden; }
.popular-card-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 0 10px; }
.popular-tag {
    font-size: 12px;
    font-weight: 600;
    color: var(--rwd-tag-color);
    background: var(--rwd-tag-bg);
    border-radius: var(--radius-pill);
    padding: 3px 12px;
    white-space: nowrap;
}
.popular-card-tit {
    font-size: 20px;
    font-weight: 700;
    color: var(--rwd-dark);
    line-height: 1.6;
    margin-bottom: 8px;
}
.popular-card:hover .popular-card-tit { text-decoration: underline; }
.popular-card-desc { font-size: 14px; color: #666; line-height: 1.9; margin: 0; }

/* =========================================================
   科學專題 SCIENCE PROJECT
   ========================================================= */
.sproject-row > [class*="col-"] { margin-bottom: 28px; }
.sproject-card {
    display: block;
    color: inherit;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0, 0, 0, .1);
    background: #fff;
}
.sproject-card:hover { text-decoration: none; color: inherit; }
.sproject-card-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 14px 18px;
    background: var(--rwd-sproject-content-bg);
}
.sproject-card-tit { font-size: 20px; font-weight: 700; color: var(--rwd-dark); min-width: 0; max-width: 100%; }
.sproject-card:hover .sproject-card-tit { text-decoration: underline; }
.sproject-card-date { font-size: 13px; color: #8a8a8a; }

/* =========================================================
   閱讀科學大師 TECHTALK
   ========================================================= */
.talkx-row > [class*="col-"] { position: relative; margin-bottom: 24px; }
.talkx-item { display: block; color: inherit; padding: 4px 8px; }
.talkx-item:hover { text-decoration: none; color: inherit; }
.talkx-item-tit {
    font-size: 20px;
    font-weight: 700;
    color: var(--rwd-dark);
    line-height: 1.6;
    margin-bottom: 12px;
}
.talkx-item:hover .talkx-item-tit { text-decoration: underline; }
.talkx-item-desc { font-size: 14px; color: #666; line-height: 1.9; margin: 0 0 14px; }
.talkx-item-date { font-size: 13px; color: #999; }

@media (min-width: 992px) {
    .talkx-row > [class*="col-"]:not(:first-child)::before {
        content: '';
        position: absolute;
        left: 0;
        top: 6px;
        bottom: 6px;
        width: 1px;
        background: var(--rwd-line);
    }
}

/* 科普講堂 & Q博嚴選 左右並排佈局 */
.talk-picks-wrap { position: relative; }
@media (min-width: 992px) {
    .talk-picks-col.talk-picks-left {
        padding-right: 36px;
        position: relative;
    }
    .talk-picks-col.talk-picks-left::after {
        content: '';
        position: absolute;
        right: 0;
        top: 10px;
        bottom: 10px;
        width: 1px;
        background: var(--rwd-line);
    }
    .talk-picks-col.talk-picks-right {
        padding-left: 36px;
    }
}
@media (max-width: 991.98px) {
    .talk-picks-col.talk-picks-left {
        margin-bottom: 40px;
    }
}

/* =========================================================
   訂閱電子報(深色區)已統一移至 /css/newsletter-section.css
   ========================================================= */

/* =========================================================
   RWD(斷點沿用既有設計:768 / 992)
   ========================================================= */
@media (max-width: 991.98px) {
    .sec-tit-cn { font-size: 24px; }
    .sec-tit-en { font-size: 15px; }

    /* NEWS:改為上下堆疊，控制列置中於 news-stage 畫面正下方 */
    .news-stage { flex-direction: column; align-items: stretch; padding: 12px 0 0; }
    .news-frame { flex: 0 0 auto; max-width: 100%; }
    .news-slide-panel {
        margin-left: 0;
        margin-top: -24px;
        padding: 44px 24px 28px;
    }
    .news-slide-tit { font-size: 22px; }
    .news-thumbs {
        width: 100%;
        margin: 20px auto 0;
        justify-content: center;
    }
}

@media (max-width: 767.98px) {
    .news-wrap, .video-wrap, .events-wrap, .popular-wrap,
    .sproject-wrap, .techtalk-wrap, .talk-picks-wrap { padding: 40px 0; }

    .sec-head { flex-wrap: wrap; gap: 10px 14px; margin-bottom: 24px; }
    .sec-head-line { display: none; }
    .sec-more { margin-left: auto; }

    .news-slide-tit { font-size: 19px; }
    .news-label { position: static; top: 0; }
    .news-thumbs {
        gap: 12px;
        margin: 16px auto 0;
    }
    .news-thumbs-prev, .news-thumbs-next {
        width: 38px;
        height: 38px;
    }
    .news-thumbs-prev::before, .news-thumbs-next::before {
        width: 8px;
        height: 8px;
    }

    .event-card-day { font-size: 28px; }
    .event-card-time { width: 36px; height: 36px; }
    .event-card-time i { font-size: 10px; }
}

/* =========================================================
   主題色彩切換器 (純文字極簡膠囊，無 Emoji)
   ========================================================= */
.theme-switcher-pill {
    position: fixed;
    bottom: 30px;
    left: 30px;
    right: auto;
    z-index: 999;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(0, 0, 0, 0.12);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    border-radius: 30px;
    padding: 4px 6px;
    display: none; /* 預設完全隱藏，需透過 Alt + T / Option + T 快捷鍵喚醒 */
    align-items: center;
    backdrop-filter: blur(4px);
}
.theme-switcher-pill.is-active {
    display: inline-flex !important;
}
.theme-switcher-pill .theme-btn {
    background: transparent;
    border: none;
    padding: 6px 14px;
    font-size: 14px;
    font-weight: 500;
    color: #555;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
    line-height: 1.4;
}
.theme-switcher-pill .theme-btn:hover {
    color: #111;
}
.theme-switcher-pill .theme-btn.active {
    background: var(--rwd-accent);
    color: #fff;
    font-weight: 700;
}
.theme-switcher-pill .theme-divider {
    color: #ccc;
    user-select: none;
    font-size: 12px;
    margin: 0 2px;
}
@media (max-width: 767.98px) {
    .theme-switcher-pill {
        bottom: 20px;
        left: 20px;
        right: auto;
        padding: 3px 5px;
    }
    .theme-switcher-pill .theme-btn {
        padding: 5px 10px;
        font-size: 13px;
    }
}