/* zonmedia-ud：UD 版型樣式
   資訊架構參考聯合新聞網（容器 1280、灰底、頂部雙廣告、焦點區三欄），
   markup 與樣式為自行撰寫。放在 assets/custom/ 不進 gulp 打包。 */

:root {
    --ud-wrap: 1280px;
    --ud-main: 900px;   /* 拿掉中欄後放大：1240 - 900 - 300 - 20 = 20px 餘裕 */
    --ud-rail: 300px;
    --ud-gap: 20px;
    --ud-line: rgba(0, 0, 0, 0.1);
    --ud-bg: #fafafa;
    --ud-accent: var(--ghost-accent-color, #1F4E79);
}

body { background: var(--ud-bg); }

.ud-wrap {
    /* width:100% 是必要的：.gh-viewport 是 flex column，cross axis 用了 margin:auto
       會關掉 stretch，容器會縮成 fit-content（實測整個版面被壓到 415px）。 */
    width: 100%;
    max-width: var(--ud-wrap);
    margin: 0 auto;
    padding: 0 20px;
}

/* 1. 快訊列 ------------------------------------------------------------- */

.ud-flash {
    background: #fff;
    border-bottom: 1px solid var(--ud-line);
}

.ud-flash-inner {
    display: flex;
    align-items: center;
    gap: 16px;
    height: 46px;
    overflow: hidden;
}

.ud-flash-label {
    flex: none;
    padding: 3px 14px;
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
    background: #c0392b;
    border-radius: 2px;
}

.ud-flash-viewport { flex: 1; overflow: hidden; }

.ud-flash-track {
    display: flex;
    gap: 32px;
    white-space: nowrap;
    animation: ud-flash 60s linear infinite;
}

.ud-flash-track:hover { animation-play-state: paused; }
.ud-flash-track a { font-size: 1.5rem; color: var(--color-primary-text); }

@keyframes ud-flash { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .ud-flash-track { animation: none; } }

.ud-flash-tags { display: flex; flex: none; gap: 16px; }
.ud-flash-tags a { font-size: 1.35rem; color: var(--color-secondary-text); }

@media (max-width: 900px) { .ud-flash-tags { display: none; } }

/* 2. 頂部廣告列（970 + 300 並排）---------------------------------------- */

.ud-adrow {
    display: grid;
    grid-template-columns: minmax(0, 1fr) var(--ud-rail);
    gap: var(--ud-gap);
    margin: 20px auto;
}

.ud-adrow.is-single { grid-template-columns: minmax(0, 1fr); }
.ad-slot--leader { min-height: 270px; }
.ad-slot--leader .ad-box { min-height: 250px; display: flex; flex-direction: column; justify-content: center; }
.ad-slot--box, .ad-slot--rail { min-height: 270px; margin: 0; }
.ad-slot--box .ad-box, .ad-slot--rail .ad-box { min-height: 250px; display: flex; flex-direction: column; justify-content: center; }

@media (max-width: 991px) {
    .ud-adrow { grid-template-columns: minmax(0, 1fr); }
    .ad-slot--box { display: none; }
}

/* 3. 焦點區（輪播 760 / 中欄 / 右欄 300）--------------------------------- */

.ud-focus {
    display: grid;
    grid-template-columns: minmax(0, 1fr) var(--ud-rail);
    gap: var(--ud-gap);
    align-items: start;
    margin-bottom: 28px;
}

/* 中欄已移除（內容與右欄／下方清單重複，且 ≤1200px 本來就隱藏、多數裝置看不到）。
   輪播改吃滿主欄，手機與桌機的版面邏輯一致。 */
@media (max-width: 991px) { .ud-focus { grid-template-columns: minmax(0, 1fr); } .ud-rail { order: 3; } }

.ud-slide-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 24px;
    padding: 14px 16px;
    background: #fff;
    border: 1px solid var(--ud-line);
    border-top: 0;
}

.ud-slide-links a {
    position: relative;
    display: block;
    padding-left: 14px;
    font-size: 1.45rem;
    line-height: 1.5;
    color: var(--color-primary-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ud-slide-links a::before {
    content: "";
    position: absolute;
    top: 0.85em;
    left: 0;
    width: 5px;
    height: 5px;
    background: var(--ud-accent);
    border-radius: 50%;
}


/* 3c. 右欄分頁 ----------------------------------------------------------- */

.ud-rail { background: #fff; border: 1px solid var(--ud-line); }

.ud-tabs { display: flex; border-bottom: 1px solid var(--ud-line); }

.ud-tab {
    flex: 1;
    padding: 12px 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-secondary-text);
    cursor: pointer;
    background: none;
    border: 0;
    border-bottom: 3px solid transparent;
}

.ud-tab.is-active { color: var(--ud-accent); border-bottom-color: var(--ud-accent); }

.ud-tabpanel { display: none; margin: 0; padding: 6px 14px 14px; list-style: none; }
.ud-tabpanel.is-active { display: block; }

.ud-tabpanel li {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 8px;
    padding: 9px 0;
    border-bottom: 1px solid var(--ud-line);
    font-size: 1.4rem;
    line-height: 1.45;
}

.ud-tabpanel li:last-child { border-bottom: 0; }
.ud-tabpanel a { color: var(--color-primary-text); }
.ud-tabpanel time { font-size: 1.2rem; color: var(--color-secondary-text); }
.ud-rank { font-weight: 700; color: var(--ud-accent); text-align: center; }
.ud-empty { display: block !important; color: var(--color-secondary-text); }

/* 4. 關鍵字列 ------------------------------------------------------------ */

.ud-keywords { background: #fff; border-block: 1px solid var(--ud-line); }

.ud-keywords-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    align-items: center;
    min-height: 62px;
    padding-block: 12px;
}

.ud-keywords-label { font-size: 1.4rem; font-weight: 700; color: var(--color-secondary-text); }

.ud-keywords-inner a {
    padding: 4px 14px;
    font-size: 1.4rem;
    color: var(--color-primary-text);
    background: var(--ud-bg);
    border: 1px solid var(--ud-line);
    border-radius: 999px;
}

/* 5. 下段：主清單 + 側欄 ------------------------------------------------- */

.ud-lower {
    display: grid;
    grid-template-columns: minmax(0, 1fr) var(--ud-rail);
    gap: 28px var(--ud-gap);
    margin-block: 28px 48px;
    align-items: start;
}

@media (max-width: 991px) { .ud-lower { grid-template-columns: minmax(0, 1fr); } }

.ud-block-title {
    margin: 0 0 14px;
    padding-bottom: 8px;
    font-size: 2rem;
    border-bottom: 2px solid var(--ud-accent);
}

.ud-stream-col { display: grid; gap: 36px; }
.ud-stream-list { display: grid; gap: 18px; }

.ud-block-title { display: flex; align-items: baseline; justify-content: space-between; }
.ud-more { font-size: 1.35rem; font-weight: 400; color: var(--color-secondary-text); }
.ud-stream-list .zn-item { padding-bottom: 18px; border-bottom: 1px solid var(--ud-line); }

.ud-guess { margin: 0; padding: 0; list-style: none; }
.ud-guess li { border-bottom: 1px solid var(--ud-line); }
.ud-guess a { display: grid; grid-template-columns: 76px minmax(0, 1fr); gap: 10px; padding: 10px 0; align-items: center; }
.ud-guess img { display: block; width: 76px; height: 52px; object-fit: cover; }
.ud-guess span { font-size: 1.35rem; line-height: 1.45; color: var(--color-primary-text); }

/* 3. 頭條輪播 ------------------------------------------------------------- */
/* 用原生捲動 + scroll-snap 當底：手指滑動、觸控板、鍵盤都是瀏覽器原生行為，
   JS 只負責「自動輪播」與「圓點狀態」。不依賴任何輪播套件。 */

.zn-hero-carousel {
    position: relative;
    margin-bottom: 3.2rem;
}

.zn-hero-track {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    border-radius: 6px;
    scrollbar-width: none;              /* 捲軸藏起來，但捲動能力保留 */
}

.zn-hero-track::-webkit-scrollbar { display: none; }

.zn-hero-track:focus-visible {
    outline: 2px solid var(--ghost-accent-color, #1F4E79);
    outline-offset: 3px;
}

.zn-hero-slide {
    flex: 0 0 100%;
    scroll-snap-align: start;
}

/* 防線：廣告插入器等外部腳本若把節點塞進軌道，會打亂 scroll-snap 與張數換算 */
.zn-hero-track > :not(.zn-hero-slide) {
    display: none !important;
}

.zn-hero-media {
    position: relative;
    display: block;
    aspect-ratio: 16 / 9;        /* 放在容器而不是 img：沒有首圖的文章也不會塌高度 */
    background: #15171a;
}

.zn-hero-media img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    opacity: 0.85;
}

.zn-hero-caption {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    padding: 6rem 2.4rem 2rem;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.72), transparent);
}

.zn-hero-tag {
    display: inline-block;
    margin-bottom: 0.8rem;
    padding: 0.2rem 0.8rem;
    font-size: 1.2rem;
    font-weight: 700;
    color: #4a3b16;
    background: #e6d49b;
    border-radius: 3px;
}

.zn-hero-title {
    margin: 0;
    font-size: clamp(2rem, 1rem + 1.6vw, 3.2rem);
    line-height: 1.3;
    color: #fff;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.55);
}

/* 左右切換鈕：桌機顯示，手機隱藏（手指直接滑比較自然）*/
.zn-hero-nav {
    position: absolute;
    top: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0 0 4px;
    font-size: 2.6rem;
    line-height: 1;
    color: #fff;
    cursor: pointer;
    background: rgba(0, 0, 0, 0.4);
    border: 0;
    border-radius: 50%;
    transform: translateY(-50%);
    transition: background 0.2s, opacity 0.2s;
}

.zn-hero-nav:hover { background: rgba(0, 0, 0, 0.65); }
.zn-hero-nav.is-prev { left: 1.2rem; }
.zn-hero-nav.is-next { right: 1.2rem; }

@media (max-width: 767px) {
    .zn-hero-nav { display: none; }
}

.zn-hero-dots {
    position: absolute;
    right: 0;
    bottom: 1.2rem;
    left: 0;
    display: flex;
    gap: 0.8rem;
    justify-content: center;
}

.zn-hero-dots button {
    width: 9px;
    height: 9px;
    padding: 0;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.45);
    border: 0;
    border-radius: 50%;
    transition: background 0.2s, transform 0.2s;
}

.zn-hero-dots button[aria-selected="true"] {
    background: #fff;
    transform: scale(1.35);
}

.zn-hero-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--ghost-accent-color, #1F4E79);
    border-radius: 0 3px 3px 0;
    pointer-events: none;
}


/* 沿用的清單項目樣式（.zn-item 來自前一版主題，UD 的主清單也用同一組）--- */

.zn-item { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 16px; }
.zn-item-media img { display: block; width: 160px; height: 106px; object-fit: cover; }
.zn-item-title { margin: 0; font-size: 1.7rem; line-height: 1.45; }
.zn-item-body a { color: inherit; }
.zn-item-meta { display: flex; gap: 8px; align-items: center; margin-top: 8px; font-size: 1.25rem; color: var(--color-secondary-text); }
.zn-tag { padding: 1px 8px; color: #7a601c !important; background: #f0e3bd; border-radius: 3px; }

@media (max-width: 600px) { .zn-item { grid-template-columns: 110px minmax(0, 1fr); } .zn-item-media img { width: 110px; height: 74px; } }

/* 內頁（分類／作者）的廣告版位 -------------------------------------------- */

.ud-archive-ad { margin: 24px auto 8px; }

.ad-slot--archive { min-height: 270px; }
.ad-slot--archive .ad-box { min-height: 250px; display: flex; flex-direction: column; justify-content: center; }

@media (max-width: 767px) {
    .ad-slot--archive { min-height: 130px; }
    .ad-slot--archive .ad-box { min-height: 110px; }
}

/* 資訊流版位：Grid 版面時橫跨整排（由 ud.js 每 9 張卡片插入一個）*/
.gh-feed > .ad-slot--feed { grid-column: 1 / -1; min-height: 150px; }
.gh-feed > .ad-slot--feed .ad-box { min-height: 130px; display: flex; flex-direction: column; justify-content: center; }

/* 文章內頁的版位 ---------------------------------------------------------- */

.ad-slot--inline { margin: 2.6rem 0; min-height: 270px; }
.ad-slot--inline .ad-box { min-height: 250px; display: flex; flex-direction: column; justify-content: center; }

.ad-slot--end { width: 100%; max-width: 760px; margin: 3rem auto; padding: 0 20px; min-height: 130px; }
.ad-slot--end .ad-box { min-height: 110px; display: flex; flex-direction: column; justify-content: center; }

@media (max-width: 767px) { .ad-slot--inline { min-height: 290px; } }

/* 放了真廣告的版位：拿掉示範框的底色與虛線，只留一個小小的「廣告」標示 */
.ad-box.is-live {
    position: relative;
    padding: 0;
    background: none;
    border: 0;
    line-height: 0;
}

.ad-box.is-live .ad-tag {
    position: absolute;
    top: 6px;
    left: 6px;
    z-index: 1;
    padding: 2px 8px;
    line-height: 1.4;
    color: #4a3b16;
    background: rgba(240, 227, 189, 0.92);
    border-radius: 3px;
}

.ad-box.is-live img { display: block; width: 100%; height: auto; border-radius: 6px; }