@charset "utf-8";
/* ============================================================
   首页「新闻中心」板块 —— 独立样式文件
   作用域：.index__news.news-sec
   PC（≥1201px）：rem 等比，基准 1920px（1rem = 100px）
   平板（769-1200px）：固定 px
   手机（≤768px）：纵向 4 条，不滚动，基准 750px
   ============================================================ */

.index__news.news-sec{
    --news-red:#bf0008;
    --news-mark:#e8e8e8;
    --news-desc:#9a9a9a;
    display:flex;
    align-items:center;
    justify-content:center;
    box-sizing:border-box;
    padding:0;
    background:#f2f2f2;
    overflow:hidden;
}
.news-sec__inner{
    width:100%;
    max-width:16.04rem;
    margin:0 auto;
    box-sizing:border-box;
}

/* ---------- 标题 ---------- */
.news-sec__head{
    position:relative;
    padding-top:.3rem;
    text-align:center;
}
.news-sec__en{
    position:absolute;
    left:50%;
    top:0;
    transform:translateX(-50%);
    font-family:Arial,Helvetica,"Microsoft YaHei",sans-serif;
    font-size:.7rem;
    line-height:1;
    font-weight:700;
    letter-spacing:.05em;
    text-transform:uppercase;
    color:var(--news-mark);
    white-space:nowrap;
    pointer-events:none;
    -webkit-user-select:none;
    user-select:none;
}
.news-sec__cn{
    position:relative;
    margin:0;
    padding:0;
    font-size:.52rem;
    line-height:1.1;
    font-weight:700;
    letter-spacing:.02em;
    color:var(--news-red);
}
.news-sec__cn:after{
    content:"";
    display:block;
    width:.7rem;
    height:.05rem;
    margin:.16rem auto 0;
    background:var(--news-red);
}

/* ---------- 主体 / 轮播 ---------- */
.news-sec__body{
    position:relative;
    margin-top:.5rem;
    padding:0 1.05rem;
    box-sizing:border-box;
}
.news-slider{
    width:100%;
    box-sizing:border-box;
    overflow:hidden;
}
.news-slider .swiper-wrapper{
    align-items:stretch;
}
.news-slider .swiper-slide{
    display:flex;
    height:auto;
    box-sizing:border-box;
    padding:0 .355rem;
}

/* ---------- 卡片 ---------- */
.news-card{
    width:100%;
    height:100%;
    background:#fff;
    border-radius:.14rem;
    box-shadow:0 .06rem .32rem rgba(0,0,0,.07);
    box-sizing:border-box;
    overflow:hidden;
    transition:box-shadow .35s ease,transform .35s ease;
}
.news-card:hover{
    box-shadow:0 .1rem .5rem rgba(0,0,0,.12);
    transform:translateY(-.04rem);
}
.news-card__link{
    display:block;
    height:100%;
    padding:.09rem .09rem .18rem;
    box-sizing:border-box;
    color:inherit;
}
.news-card__pic{
    height:2.7rem;
    border-radius:.08rem;
    overflow:hidden;
    background:#f4f4f4;
    font-size:0;
}
.news-card__pic img{
    display:block;
    width:100%;
    height:100%;
    object-fit:cover;
}
.news-card__txt{
    padding:.24rem .15rem 0;
}
.news-card__title{
    margin:0 0 .14rem;
    padding:0;
    font-size:.25rem;
    line-height:1.4;
    font-weight:700;
    color:#141414;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
}
.news-card__desc{
    margin:0;
    font-size:.185rem;
    line-height:1.75;
    color:var(--news-desc);
    display:-webkit-box;
    -webkit-line-clamp:4;
    -webkit-box-orient:vertical;
    overflow:hidden;
    word-break:break-word;
    /* 摘要缺失时也保持卡片等高 */
    min-height:calc(.185rem * 1.75 * 4);
}
.news-card__date{
    display:block;
    margin-top:.14rem;
    font-size:.18rem;
    line-height:1;
    color:var(--news-desc);
    text-align:right;
    font-variant-numeric:tabular-nums;
}

/* ---------- 左右箭头 ---------- */
.news-nav{
    position:absolute;
    top:50%;
    transform:translateY(-50%);
    width:.64rem;
    height:.64rem;
    border:1px solid #d8d8d8;
    border-radius:50%;
    background:transparent;
    color:#a8a8a8;
    display:flex;
    align-items:center;
    justify-content:center;
    cursor:pointer;
    z-index:6;
    transition:border-color .3s ease,color .3s ease,background-color .3s ease;
}
.news-nav i{
    font-size:.26rem;
    line-height:1;
}
.news-nav:hover{
    border-color:var(--news-red);
    color:var(--news-red);
    background:rgba(255,255,255,.7);
}
.news-nav.swiper-button-disabled{
    opacity:.35;
    cursor:default;
    border-color:#d8d8d8;
    color:#a8a8a8;
}
.news-nav--prev{left:0;}
.news-nav--next{right:0;}

/* ============================================================
   平板（769 - 1200px）
   ============================================================ */
@media all and (min-width:997px) and (max-width:1200px){
    .index__news.news-sec{padding:0 30px;}
    .news-sec__inner{max-width:1100px;}
    .news-sec__head{padding-top:24px;}
    .news-sec__en{font-size:56px;}
    .news-sec__cn{font-size:42px;}
    .news-sec__cn:after{width:56px;height:4px;margin-top:13px;}
    .news-sec__body{margin-top:34px;padding:0 62px;}
    .news-slider .swiper-slide{padding:0 15px;}
    .news-card{border-radius:11px;}
    .news-card__link{padding:7px 7px 14px;}
    .news-card__pic{height:190px;border-radius:7px;}
    .news-card__txt{padding:18px 12px 0;}
    .news-card__title{font-size:20px;margin-bottom:10px;}
    .news-card__desc{font-size:14px;line-height:1.7;}
    .news-card__date{font-size:14px;margin-top:10px;}
    .news-nav{width:50px;height:50px;}
    .news-nav i{font-size:20px;}
}

@media all and (min-width:769px) and (max-width:996px){
    .index__news.news-sec{padding:0 20px;}
    .news-sec__inner{max-width:1100px;}
    .news-sec__head{padding-top:20px;}
    .news-sec__en{font-size:44px;}
    .news-sec__cn{font-size:34px;}
    .news-sec__cn:after{width:46px;height:3px;margin-top:11px;}
    .news-sec__body{margin-top:26px;padding:0 50px;}
    .news-slider .swiper-slide{padding:0 12px;}
    .news-card{border-radius:10px;}
    .news-card__link{padding:6px 6px 12px;}
    .news-card__pic{height:150px;border-radius:6px;}
    .news-card__txt{padding:14px 10px 0;}
    .news-card__title{font-size:16px;margin-bottom:8px;}
    .news-card__desc{font-size:12px;line-height:1.65;-webkit-line-clamp:4;}
    .news-card__date{font-size:12px;margin-top:8px;}
    .news-nav{width:40px;height:40px;}
    .news-nav i{font-size:17px;}
}

/* ============================================================
   手机竖屏（<= 768px）：纵向 4 条，无滚动
   ============================================================ */
@media all and (max-width:768px){
    .index__news.news-sec{
        display:block;
        height:auto;
        padding:28px 24px 34px;
    }
    .news-sec__inner{max-width:none;}

    .news-sec__head{padding-top:22px;}
    .news-sec__en{font-size:58px;letter-spacing:.04em;}
    .news-sec__cn{font-size:40px;}
    .news-sec__cn:after{width:42px;height:4px;margin-top:12px;}

    .news-sec__body{margin-top:26px;padding:0;}

    /* 手机端不启用轮播：恢复为普通纵向列表 */
    .news-slider .swiper-wrapper{
        display:block;
        transform:none !important;
        transition:none !important;
    }
    .news-slider .swiper-slide{
        display:block;
        width:auto !important;
        padding:0 !important;
        margin:0 0 24px !important;
    }
    .news-slider .swiper-slide:nth-child(n+5){display:none;}
    .news-nav{display:none !important;}

    .news-card{
        border-radius:8px;
        box-shadow:0 3px 14px rgba(0,0,0,.06);
        transform:none !important;
    }
    .news-card:hover{transform:none;box-shadow:0 3px 14px rgba(0,0,0,.06);}
    .news-card__link{
        display:flex;
        align-items:stretch;
        padding:0;
    }
    .news-card__pic{
        flex:0 0 292px;
        width:292px;
        height:212px;
        border-radius:8px 0 0 8px;
    }
    .news-card__txt{
        flex:1 1 auto;
        min-width:0;
        padding:14px 16px 12px 16px;
        display:flex;
        flex-direction:column;
    }
    .news-card__title{
        font-size:19px;
        line-height:1.35;
        margin-bottom:8px;
        white-space:normal;
        overflow:hidden;
        text-overflow:ellipsis;
        display:-webkit-box;
        -webkit-line-clamp:2;
        -webkit-box-orient:vertical;
    }
    .news-card__desc{
        font-size:13px;
        line-height:1.62;
        -webkit-line-clamp:5;
        flex:1 1 auto;
    }
    .news-card__date{
        font-size:13px;
        margin-top:8px;
    }
}