/* ============================================================
   轮播幻灯片 + 热点排行榜模块样式
   高度由 PHP 动态输出，此处只定义布局和装饰样式
   ============================================================ */

/* 主容器 */
.news-block-wrap {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    width: 100%;
}
.news-block-left {
    flex: 1;
    min-width: 0;
}
.news-block-right {
    flex: 0 0 311px;
    width: 311px;
}

/* ===== 幻灯片 ===== */
.nb-slider {
    margin-bottom: 16px;
    border-radius: var(--main-radius, 12px);
    overflow: hidden;
}
.nb-slider .swiper-container {
    /* 高度由动态内联 style 设置 */
}
.nb-slider .swiper-slide {
    overflow: hidden;
}
.nb-slider .swiper-slide a {
    display: block;
    height: 100%;
}
.nb-slider .swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .3s;
}
.nb-slider .swiper-slide:hover img {
    transform: scale(1.02);
}
.nb-slider .swiper-pagination {
    bottom: 10px;
    z-index: 10;
}
.nb-slider .swiper-pagination-bullet {
    width: 8px;
    height: 8px;
    background: rgba(255,255,255,.6);
    opacity: 1;
    transition: all .3s;
}
.nb-slider .swiper-pagination-bullet-active {
    background: #fff;
    width: 20px;
    border-radius: 4px;
}

/* ===== 4图卡片 ===== */
.nb-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 16px;
}
.nb-card a {
    display: block;
}
.nb-card-img {
    position:relative;
    /* 高度由动态内联 style 设置 */
    border-radius: var(--main-radius, 12px);
    overflow: hidden;
}
.nb-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .3s;
    display: block;
}
.nb-card a:hover img {
    transform: scale(1.1);
}
.nb-overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 80px;
    background: linear-gradient(to top, rgba(0,0,0,.7) 0%, transparent 100%);
    border-radius: 0 0 var(--main-radius, 12px) var(--main-radius, 12px);
}
.nb-card-title {
    position: absolute;
    bottom: 12px;
    left: 12px;
    right: 12px;
    font-size: 14px;
    line-height: 1.4;
    color: #fff;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-shadow: 0 1px 3px rgba(0,0,0,.3);
}

/* ===== 排行榜 ===== */
.nb-rank-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding: 12px 16px;
    background: var(--main-bg-color, #fff);
    border-radius: var(--main-radius, 12px);
    border: 1px solid var(--main-border-color, #ebedf0);
}
.nb-rank-title {
    font-size: 16px;
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.nb-rank-title i {
    color: #ff4757;
}
.nb-nav {
    display: flex;
    gap: 8px;
}
.nb-nav-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--main-border-color, #ebedf0);
    border-radius: var(--main-radius, 8px);
    cursor: pointer;
    background: var(--main-bg-color, #fff);
    font-weight: bold;
    font-size: 18px;
    color: var(--muted-2-color, #999);
    transition: all .3s;
    user-select: none;
    line-height: 1;
}
.nb-nav-btn:hover:not(.disabled) {
    border-color: var(--focus-color, #306AF1);
    color: var(--focus-color, #306AF1);
}
.nb-nav-btn.disabled {
    opacity: .35;
    cursor: not-allowed;
}

/* 排行榜内容包装 - 关键：背景+边框+圆角+padding */
.nb-rank-wrap {
    overflow: hidden;
    position: relative;
    background: var(--main-bg-color, #fff);
    border-radius: var(--main-radius, 12px);
    border: 1px solid var(--main-border-color, #ebedf0);
    padding: 16px;
}
.nb-rank-list {
    display: flex;
    gap: 0;
    transition: transform .35s ease;
    overflow: hidden;
}
.nb-rank-page {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 0 0 100%;
    width: 100%;
    min-width: 100%;
}
.nb-rank-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 14px;
    box-sizing: border-box;
    border: 1px solid var(--main-border-color, #ebedf0);
    border-radius: var(--main-radius, 10px);
    background: var(--main-bg-color, #fff);
    transition: all .25s;
    text-decoration: none;
    color: var(--main-color, #333);
    flex-shrink: 0;
}
.nb-rank-item:hover {
    background: #f5f7fe;
    border-color: var(--focus-color, #306AF1);
    box-shadow: 0 2px 8px rgba(48,106,241,.08);
}
.nb-num {
    font-weight: 700;
    min-width: 32px;
    font-size: 24px;
    color: var(--muted-2-color, #c5c9cd);
    flex-shrink: 0;
    padding-top: 1px;
    line-height: 1;
}
.nb-num-1 { color: #ff4757; }
.nb-num-2 { color: #ff7f50; }
.nb-num-3 { color: #ffa502; }

.nb-item-1 { border-color: rgba(255,71,87,.25); background: #fffaf9; }
.nb-item-2 { border-color: rgba(255,127,80,.25); background: #fffbf8; }
.nb-item-3 { border-color: rgba(255,165,2,.25); background: #fffef8; }

.nb-rank-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.nb-rank-t {
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--main-color, #333);
}
.nb-rank-desc {
    font-size: 12px;
    line-height: 1.5;
    color: var(--muted-2-color, #999);
    padding: 7px 10px;
    background: var(--body-bg-color, #f5f7fa);
    border-radius: var(--main-radius, 8px);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 显示更多 */
.nb-rank-more {
    text-align: center;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px dashed var(--main-border-color, #ebedf0);
}
.nb-rank-more a {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    color: var(--muted-2-color, #999);
    text-decoration: none;
    transition: color .25s;
    padding: 4px 12px;
    border-radius: 20px;
}
.nb-rank-more a:hover {
    color: var(--focus-color, #306AF1);
    background: #f0f4ff;
}
.nb-rank-more a i {
    font-size: 14px;
    transition: transform .25s;
}
.nb-rank-more a:hover i {
    transform: translateX(3px);
}

/* ===== 响应式 ===== */
@media(max-width: 991px) {
    .news-block-wrap {
        flex-direction: column;
    }
    .news-block-left,
    .news-block-right {
        flex: 0 0 100%;
        width: 100%;
    }
    .news-block-right {
        max-width: 100%;
    }
}

@media(max-width: 768px) {
    .nb-slider-hide-mobile,
    .nb-rank-hide-mobile,
    .nb-cards-hide-mobile {
        display: none !important;
    }
    .nb-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .nb-rank-header {
        padding: 10px 12px;
    }
    .nb-rank-title {
        font-size: 15px;
    }
    .nb-rank-item {
        padding: 10px 12px;
        gap: 8px;
    }
    .nb-num {
        font-size: 20px;
        min-width: 26px;
    }
    .nb-rank-t {
        font-size: 13px;
    }
    .nb-rank-desc {
        font-size: 11px;
        padding: 5px 8px;
    }
    .nb-rank-wrap {
        padding: 12px;
    }
}