/* ============================================================
 * 频道公告页 Wonder Vision - 页面专属样式
 * 依赖：style.css (变量 / 重置 / 容器 / Header / Footer / Banner / 侧栏 / 公告列表 PC 基准)
 * 说明：PC 样式沿用 style.css，不在此覆盖；
 *       本文件仅承载 pad / wap 响应式，由 channel/announcement.html 单独引入
 * 结构：Banner + 左侧边栏菜单 + 右侧公告列表
 * 导航样式与 page-programs.css / page-cooperation.css 保持一致
 * ============================================================ */

/* ========== Pad：≤1024px ========== */
@media (max-width: 1024px) {
    .wv-channel-banner {
        height: 160px;
    }
    .wv-channel-main {
        padding: 24px 0 44px;
    }
    .wv-channel-inner {
        gap: 20px;
    }
    .wv-channel-sidebar {
        width: 170px;
    }
    .wv-sidebar-item {
        padding: 12px 16px;
        font-size: 14px;
    }
    .wv-news-title {
        font-size: 16px;
    }
}

/* ========== Wap：≤768px ========== */
@media (max-width: 768px) {
    .wv-channel-banner {
        height: 120px;
    }
    .wv-channel-banner-dots {
        bottom: 10px;
    }
    .wv-channel-main {
        padding: 20px 0 36px;
    }
    .wv-channel-inner {
        flex-direction: column;
        gap: 16px;
    }
    .wv-channel-sidebar {
        width: 100%;
        background: transparent;
    }

    /* ---- 栏目导航：瘦身红条 + 横滑胶囊（同 programs/cooperation） ---- */
    .wv-sidebar-title {
        width: 100%;
        box-sizing: border-box;
        margin: 0;
        padding: 9px 14px;
        font-size: 14px;
        font-weight: 700;
        letter-spacing: 2px;
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 2px 8px rgba(220, 38, 38, 0.16);
    }
    .wv-sidebar-title::after {
        display: none;
    }
    .wv-sidebar-menu {
        display: flex;
        gap: 8px;
        margin-top: 12px;
        padding-bottom: 4px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .wv-sidebar-menu::-webkit-scrollbar {
        display: none;
    }
    .wv-sidebar-menu li {
        flex-shrink: 0;
    }
    .wv-sidebar-item {
        display: inline-block;
        padding: 8px 15px;
        font-size: 13px;
        line-height: 1.4;
        white-space: nowrap;
        color: #444;
        background: #ffffff;
        border: 1px solid #ececec;
        border-bottom: 1px solid #ececec;
        border-radius: 999px;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    }
    .wv-sidebar-item:hover {
        padding-left: 15px;
        color: var(--color-primary);
    }
    .wv-sidebar-active {
        background: var(--color-primary) !important;
        color: #ffffff !important;
        border-color: var(--color-primary) !important;
        border-left: none;
        box-shadow: 0 2px 8px rgba(220, 38, 38, 0.28);
    }

    /* 公告列表：字号收敛，摘要最多两行 */
    .wv-news-item {
        padding: 14px 0;
    }
    .wv-news-title {
        font-size: 16px;
        line-height: 1.5;
    }
    .wv-news-summary {
        font-size: 13px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .wv-channel-title {
        font-size: 20px;
        margin-bottom: 16px;
        padding-bottom: 10px;
    }
}

/* ========== 小屏：≤480px ========== */
@media (max-width: 480px) {
    .wv-channel-banner {
        height: 100px;
    }
    .wv-channel-main {
        padding: 16px 0 28px;
    }
    .wv-sidebar-title {
        padding: 8px 12px;
        font-size: 13px;
    }
    .wv-sidebar-item {
        padding: 7px 13px;
        font-size: 12.5px;
    }
    .wv-news-title {
        font-size: 15px;
    }
    .wv-news-summary {
        font-size: 12px;
    }
    .wv-channel-title {
        font-size: 18px;
    }
}