/* =====================================================================
 * [PBCS PATCH] show-download.html 专用现代样式 — show-download-modern.css
 * ---------------------------------------------------------------------
 * 背景：show-download.html 之前是「左 5/12 图标+截图 + 右 7/12 标题+属性表+下载按钮」，
 *       视觉陈旧。改成与 show-news.html 一致的 8/12 + 4/12 现代布局。
 *
 * 设计：
 *   - 复用 home-modern.css 通用组件（.pbcs-section / .pbcs-home-wrap / .pbcs-stats）
 *   - 复用 show-news-modern.css 通用组件（.pbcs-news-banner / .pbcs-news-breadcrumb /
 *     .pbcs-news-layout / .pbcs-news-cover / .pbcs-news-eyebrow / .pbcs-news-meta /
 *     .pbcs-news-content / .pbcs-news-tags / .pbcs-news-prevnext / .pbcs-sidebar /
 *     .pbcs-widget / .pbcs-related-list / .pbcs-tagcloud / .pbcs-cta-widget）
 *   - 本文件只加 show-download 独有：screenshots（软件截图缩略图）/ actionbox（下载卡）/
 *     btn（下载按钮组）
 *   - 命名空间：所有 class 加 .pbcs-dl 前缀，避免污染其他页
 *
 * 引用：show-download.html 自己在 head 之后 <link> 引入
 * ===================================================================== */

/* ---------- 主题变量（与 show-news 一致） ---------- */
.pbcs-dl-page {
    --pbcs-primary: #667eea;
    --pbcs-primary-dark: #5568d3;
    --pbcs-accent: #ff6b35;
    --pbcs-text: #212529;
    --pbcs-muted: #6c757d;
    --pbcs-border: #e9ecef;
    --pbcs-radius: 12px;
    --pbcs-radius-lg: 16px;
    --pbcs-shadow-sm: 0 2px 8px rgba(0, 0, 0, .06);
    --pbcs-shadow-md: 0 8px 24px rgba(0, 0, 0, .08);
}

/* =====================================================================
 * 软件截图缩略图 — 0 依赖，纯 CSS 网格 + JS 切换主图
 * ===================================================================== */
.pbcs-dl-screenshots {
    margin: 24px 0;
    padding: 16px;
    background: linear-gradient(180deg, #f8f9fa 0%, #fafbfc 100%);
    border-radius: var(--pbcs-radius);
    border: 1px solid var(--pbcs-border);
}
.pbcs-dl-screenshots .screenshots-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--pbcs-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.pbcs-dl-screenshots .screenshots-label i {
    color: var(--pbcs-primary);
}
.pbcs-dl-screenshots .screenshot-thumb {
    display: inline-block;
    width: 110px;
    height: 70px;
    margin: 0 6px 6px 0;
    border-radius: 6px;
    overflow: hidden;
    border: 2px solid #fff;
    box-shadow: 0 2px 6px rgba(0, 0, 0, .08);
    cursor: pointer;
    transition: all .2s ease;
    text-decoration: none;
    vertical-align: top;
    background: #e9ecef;
}
.pbcs-dl-screenshots .screenshot-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .2s ease;
}
.pbcs-dl-screenshots .screenshot-thumb:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, .25);
    border-color: var(--pbcs-primary);
}
.pbcs-dl-screenshots .screenshot-thumb:hover img {
    transform: scale(1.05);
}
.pbcs-dl-screenshots .screenshot-thumb.active {
    border-color: var(--pbcs-primary);
    box-shadow: 0 4px 12px rgba(102, 126, 234, .35);
}

/* =====================================================================
 * 头部网格：cover (5fr) + 下载卡 (7fr) 横向并排
 * 桌面端 grid 5/7，移动端 < 992px 改单列竖排
 * ===================================================================== */
.pbcs-dl-header {
    display: grid;
    grid-template-columns: 8fr 4fr;
    gap: 24px;
    align-items: start;
    margin-bottom: 24px;
}
@media (max-width: 992px) {
    .pbcs-dl-header {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}
/* grid 子元素防御（避免内容撑大） */
.pbcs-dl-header > * { min-width: 0; min-height: 0; }

/* =====================================================================
 * 下载卡（搬到左栏后独立卡片，不再是 sidebar widget）
 * ===================================================================== */
.pbcs-dl-actionbox {
    background: linear-gradient(135deg, #fff 0%, #f8f9ff 100%);
    border: 2px solid rgba(102, 126, 234, .12);
    box-shadow: 0 8px 28px rgba(102, 126, 234, .1);
    border-radius: var(--pbcs-radius-lg);
    padding: 24px 24px 20px;
}
.pbcs-dl-actionbox .actionbox-title {
    color: var(--pbcs-primary);
    font-size: 18px;
    font-weight: 600;
    border-bottom: 1px dashed rgba(102, 126, 234, .2);
    padding-bottom: 12px;
    margin: 0 0 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    line-height: 1.3;
}
.pbcs-dl-actionbox .actionbox-title i {
    color: var(--pbcs-accent);
    background: rgba(255, 107, 53, .1);
    padding: 5px 7px;
    border-radius: 6px;
    font-size: 16px;
}
/* 并排时按钮加大（与 cover 平级，更显眼） */
.pbcs-dl-header .pbcs-dl-btn {
    padding: 14px 18px;
    font-size: 15px;
}
.pbcs-dl-header .pbcs-dl-btn.pbcs-dl-primary {
    padding: 16px 18px;
    font-size: 16px;
}

/* 下载按钮组 */
.pbcs-dl-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px 16px;
    margin-bottom: 10px;
    border-radius: var(--pbcs-radius);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    color: #fff;
    border: none;
    cursor: pointer;
    transition: all .2s ease;
    position: relative;
    overflow: hidden;
    text-align: center;
    line-height: 1.4;
}
.pbcs-dl-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, .15);
    color: #fff;
    text-decoration: none;
}
.pbcs-dl-btn:active { transform: translateY(0); }
.pbcs-dl-btn i { font-size: 16px; }

/* 主按钮：橙色（最显眼 CTA，呼应首页强调色） */
.pbcs-dl-btn.pbcs-dl-primary {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    font-size: 15px;
    padding: 14px 16px;
    box-shadow: 0 4px 12px rgba(255, 107, 53, .35);
}
.pbcs-dl-btn.pbcs-dl-primary:hover {
    box-shadow: 0 8px 20px rgba(255, 107, 53, .45);
}
/* 网盘按钮：蓝色 */
.pbcs-dl-btn.pbcs-dl-wp {
    background: linear-gradient(135deg, #12b7f5 0%, #0d8ec2 100%);
    box-shadow: 0 4px 12px rgba(18, 183, 245, .3);
}
.pbcs-dl-btn.pbcs-dl-wp:hover {
    box-shadow: 0 8px 20px rgba(18, 183, 245, .4);
}
/* P2P 按钮：紫色 */
.pbcs-dl-btn.pbcs-dl-p2p {
    background: linear-gradient(135deg, #7e57c2 0%, #5e3a9e 100%);
    box-shadow: 0 4px 12px rgba(126, 87, 194, .3);
}
.pbcs-dl-btn.pbcs-dl-p2p:hover {
    box-shadow: 0 8px 20px rgba(126, 87, 194, .4);
}
/* 空状态 */
.pbcs-dl-btn.pbcs-dl-empty {
    background: #adb5bd;
    cursor: not-allowed;
    box-shadow: none;
}
.pbcs-dl-btn.pbcs-dl-empty:hover {
    transform: none;
    box-shadow: none;
}
/* 返回按钮 */
.pbcs-dl-btn.pbcs-dl-back {
    background: #fff;
    color: var(--pbcs-muted);
    border: 1px solid var(--pbcs-border);
    box-shadow: none;
}
.pbcs-dl-btn.pbcs-dl-back:hover {
    background: var(--pbcs-primary);
    color: #fff;
    border-color: var(--pbcs-primary);
}

/* 倒计时等待态（pbcsDelayOpen 倒计时阶段替换为 warning 配色） */
.pbcs-dl-btn.pbcs-dl-wp-pending,
.pbcs-dl-btn.pbcs-dl-p2p-pending {
    background: linear-gradient(135deg, #ffc107 0%, #e0a800 100%) !important;
    box-shadow: 0 4px 12px rgba(255, 193, 7, .35) !important;
    color: #fff !important;
}
/* 开窗成功态（1.5s 后回到原 class） */
.pbcs-dl-btn.pbcs-dl-wp-done,
.pbcs-dl-btn.pbcs-dl-p2p-done {
    background: linear-gradient(135deg, #28a745 0%, #1e7e34 100%) !important;
    box-shadow: 0 4px 12px rgba(40, 167, 69, .35) !important;
    color: #fff !important;
}

/* 隐藏的网盘码 / P2P 链接（CSS 隐藏，但 JS 可读 textContent） */
.wp-code-hidden,
.p2p-link-hidden {
    display: none !important;
}

/* =====================================================================
 * 副标题
 * ===================================================================== */
.pbcs-dl-page .pbcs-dl-article .dl-subtitle {
    font-size: 15px;
    color: var(--pbcs-muted);
    line-height: 1.5;
    margin: -8px 0 16px;
    padding-left: 14px;
    border-left: 3px solid var(--pbcs-primary);
    background: rgba(102, 126, 234, .03);
    padding: 8px 12px 8px 14px;
    border-radius: 0 6px 6px 0;
}

/* =====================================================================
 * 布局切换（双栏 ↔ 单栏）
 * 说明：show-news-modern.css 已经定义了 .pbcs-news-layout.pbcs-layout-single
 *       的 1fr 切换（line 246），show-download.html 用了双 class
 *       (pbcs-news-layout pbcs-dl-layout)，所以共用同一套样式，不需要再写。
 * ===================================================================== */

/* =====================================================================
 * 响应式微调
 * ===================================================================== */
@media (max-width: 768px) {
    .pbcs-dl-screenshots .screenshot-thumb {
        width: 80px;
        height: 50px;
    }
}

/* =====================================================================
 * 屏幕阅读器专用（保留 {content:precontent}/{content:nextcontent} 字段调用，
 * 但视觉上不可见，避免屏幕阅读器读两遍 — 用 aria-hidden 双重保险）
 * ===================================================================== */
.pbcs-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}