/* ========================================
   鼎途网络 - 新闻资讯页面样式
   ======================================== */

/* 新闻列表页 */
.news-list-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    padding: 80px 0;
}

.news-list-main {
    background: var(--pure-white);
}

.news-list-item {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 30px;
    padding: 30px;
    margin-bottom: 30px;
    background: var(--pure-white);
    border-radius: 20px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.06);
    transition: all 0.4s ease;
    border: 1px solid var(--border-color);
}

.news-list-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(74, 144, 226, 0.15);
}

.news-list-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 15px;
    transition: transform 0.4s ease;
}

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

.news-list-content {
    padding: 10px 0;
}

.news-list-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 15px;
}

.news-list-date {
    color: var(--medium-gray);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.news-list-category {
    background: var(--sky-blue);
    color: var(--primary-blue);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.news-list-title {
    font-size: 22px;
    color: var(--text-dark);
    margin-bottom: 15px;
    line-height: 1.5;
    transition: color 0.3s ease;
}

.news-list-item:hover .news-list-title {
    color: var(--primary-blue);
}

.news-list-excerpt {
    color: var(--dark-gray);
    font-size: 15px;
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 20px;
}

.news-list-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
}

.news-list-more:hover {
    gap: 15px;
}

/* 新闻侧边栏 */
.news-sidebar {
    position: sticky;
    top: 120px;
    height: fit-content;
}

.sidebar-search {
    background: var(--pure-white);
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.sidebar-search h4 {
    font-size: 18px;
    color: var(--dark-blue);
    margin-bottom: 20px;
}

.search-form {
    display: flex;
    gap: 10px;
}

.search-form input {
    flex: 1;
    padding: 12px 18px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.search-form input:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.search-form button {
    padding: 12px 20px;
    background: var(--primary-blue);
    color: var(--pure-white);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.search-form button:hover {
    background: var(--dark-blue);
}

/* 分类列表 */
.category-list {
    background: var(--pure-white);
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.category-list h4 {
    font-size: 18px;
    color: var(--dark-blue);
    margin-bottom: 20px;
}

.category-list ul li {
    margin-bottom: 8px;
}

.category-list ul li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    color: var(--dark-gray);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.category-list ul li a:hover {
    background: var(--sky-blue);
    color: var(--primary-blue);
}

.category-count {
    background: var(--light-gray);
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 12px;
    color: var(--medium-gray);
}

/* 热门新闻 */
.hot-news {
    background: var(--pure-white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.hot-news h4 {
    font-size: 18px;
    color: var(--dark-blue);
    margin-bottom: 20px;
}

.hot-news-item {
    display: flex;
    gap: 15px;
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.hot-news-item:last-child {
    border-bottom: none;
}

.hot-news-image {
    width: 90px;
    height: 70px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
}

.hot-news-info {
    flex: 1;
}

.hot-news-title {
    font-size: 14px;
    color: var(--text-dark);
    line-height: 1.6;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s ease;
}

.hot-news-item:hover .hot-news-title {
    color: var(--primary-blue);
}

.hot-news-date {
    font-size: 12px;
    color: var(--medium-gray);
}

/* 新闻详情页 */
.news-detail-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 80px 0;
}

.news-detail-header {
    text-align: center;
    margin-bottom: 50px;
    padding-bottom: 40px;
    border-bottom: 2px solid var(--border-color);
}

.news-detail-category {
    display: inline-block;
    background: var(--sky-blue);
    color: var(--primary-blue);
    padding: 6px 20px;
    border-radius: 25px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
}

.news-detail-title {
    font-size: 36px;
    color: var(--text-dark);
    margin-bottom: 25px;
    line-height: 1.4;
}

.news-detail-meta {
    display: flex;
    justify-content: center;
    gap: 30px;
    color: var(--medium-gray);
    font-size: 14px;
}

.news-detail-meta span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.news-detail-cover {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 20px;
    margin-bottom: 50px;
}

.news-detail-body {
    color: var(--dark-gray);
    line-height: 2.2;
    font-size: 17px;
}

.news-detail-body p {
    margin-bottom: 25px;
    text-align: justify;
}

.news-detail-body img {
    width: 100%;
    border-radius: 15px;
    margin: 30px 0;
}

.news-detail-body h2 {
    font-size: 26px;
    color: var(--dark-blue);
    margin: 50px 0 25px;
}

.news-detail-body h3 {
    font-size: 22px;
    color: var(--text-dark);
    margin: 40px 0 20px;
}

.news-detail-body ul,
.news-detail-body ol {
    margin: 25px 0;
    padding-left: 30px;
}

.news-detail-body ul li,
.news-detail-body ol li {
    margin-bottom: 12px;
}

.news-detail-body blockquote {
    background: var(--sky-blue);
    border-left: 5px solid var(--primary-blue);
    padding: 25px 30px;
    margin: 30px 0;
    border-radius: 0 15px 15px 0;
    font-style: italic;
    color: var(--dark-blue);
}

/* 相关新闻板块 */
.related-news-section {
    margin-top: 80px;
    padding-top: 60px;
    border-top: 2px solid var(--border-color);
}

.related-news-section h3 {
    font-size: 24px;
    color: var(--dark-blue);
    margin-bottom: 40px;
    text-align: center;
}

.related-news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

/* 新闻时间分组 */
.news-time-groups {
    margin-top: 60px;
}

.news-time-group {
    margin-bottom: 50px;
}

.news-time-group h4 {
    font-size: 20px;
    color: var(--dark-blue);
    margin-bottom: 25px;
    padding-left: 20px;
    border-left: 4px solid var(--primary-blue);
}

.news-time-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* 标签云 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-cloud a {
    display: inline-block;
    padding: 8px 16px;
    background: var(--light-gray);
    color: var(--dark-gray);
    border-radius: 20px;
    font-size: 13px;
    transition: all 0.3s ease;
}

.tag-cloud a:hover {
    background: var(--primary-blue);
    color: var(--pure-white);
}

/* 响应式 */
@media (max-width: 1024px) {
    .news-list-container {
        grid-template-columns: 1fr;
    }

    .news-sidebar {
        position: static;
    }

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

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

@media (max-width: 768px) {
    .news-list-item {
        grid-template-columns: 1fr;
    }

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

    .news-detail-title {
        font-size: 26px;
    }

    .news-detail-cover {
        height: 300px;
    }

    .related-news-grid {
        grid-template-columns: 1fr;
    }

    .news-time-grid {
        grid-template-columns: 1fr;
    }

    .news-detail-meta {
        flex-direction: column;
        gap: 10px;
    }
}