/* ===== 新闻资讯页面专用样式 ===== */

/* 顶部背景图区域 - 使用网络图片 */
.news-banner {
    position: relative;
    height: 75vh;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
}

/* 隐藏视频元素，只显示背景图 */
.news-banner video {
    display: none;
}

/* 新闻资讯页面横幅内容 */
.news-banner .banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    z-index: 5;
    width: 100%;
}

.news-banner .banner-title {
    font-size: 4em;
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    letter-spacing: 2px;
}

.news-banner .banner-subtitle {
    font-size: 1.8em;
    font-weight: 300;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    opacity: 0.9;
}

/* 新闻资讯页面导航栏初始样式 - 与首页相同，透明背景，白色按钮和logo */
.news-banner .nav-bar {
    background-color: transparent;
    box-shadow: none;
}

.news-banner .menu-button {
    color: white;
}

.news-banner .logo-white {
    display: block;
}

.news-banner .logo-black {
    display: none;
}

/* 新闻资讯页面导航栏滚动样式 - 与首页相同 */
.news-banner .nav-bar.scrolled {
    position: fixed;
    background-color: white;
    align-items: center;
    opacity: 1;
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.news-banner .nav-bar.scrolled .menu-button {
    color: black;
}

.news-banner .nav-bar.scrolled .logo-white {
    display: none;
}

.news-banner .nav-bar.scrolled .logo-black {
    display: block;
}

/* 新闻资讯内容容器 */
.news-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 80px 20px;
    background-color: white;
}

.news-content {
    width: 100%;
}

/* 新闻网格布局 - 每行3列 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    width: 100%;
}

/* 单个新闻项目样式 */
.news-item {
    display: flex;
    flex-direction: column;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background-color: white;
    height: 100%;
}

.news-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* 新闻图片容器 */
.news-image-container {
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.news-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-item:hover .news-image {
    transform: scale(1.05);
}

/* 新闻文字内容 */
.news-text {
    flex: 1;
    padding: 25px;
    display: flex;
    flex-direction: column;
}

.news-date {
    font-size: 0.9em;
    color: #666;
    margin-bottom: 10px;
    font-weight: 300;
}

.news-title {
    font-size: 1.4em;
    font-weight: bold;
    margin-bottom: 15px;
    color: #333;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-summary {
    font-size: 1em;
    line-height: 1.6;
    color: #666;
    font-weight: 300;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 去掉所有绿色线条和背景块 */
.news-item::before,
.news-title::before,
.news-title::after {
    display: none !important;
}

.news-item,
.news-title {
    background-color: transparent !important;
    border: none !important;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .news-grid {
        gap: 30px;
    }

    .news-image-container {
        height: 200px;
    }

    .news-text {
        padding: 20px;
    }

    .news-title {
        font-size: 1.3em;
    }
}

@media (max-width: 992px) {
    .news-container {
        padding: 60px 20px;
    }

    .news-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .news-image-container {
        height: 220px;
    }
}

@media (max-width: 768px) {
    .news-banner {
        height: 60vh;
    }

    .news-banner .banner-title {
        font-size: 2.5em;
        margin-bottom: 15px;
    }

    .news-banner .banner-subtitle {
        font-size: 1.2em;
    }

    .news-container {
        padding: 50px 15px;
    }

    .news-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .news-image-container {
        height: 180px;
    }

    .news-text {
        padding: 15px;
    }

    .news-title {
        font-size: 1.2em;
    }

    .news-summary {
        font-size: 0.95em;
        -webkit-line-clamp: 3;
    }
}

@media (max-width: 576px) {
    .news-banner {
        height: 50vh;
    }

    .news-banner .banner-title {
        font-size: 2em;
    }

    .news-banner .banner-subtitle {
        font-size: 1em;
    }

    .news-container {
        padding: 40px 10px;
    }

    .news-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .news-image-container {
        height: 200px;
    }

    .news-text {
        padding: 20px;
    }

    .news-title {
        font-size: 1.3em;
    }

    .news-summary {
        font-size: 1em;
        -webkit-line-clamp: 4;
    }
}