.product-hero {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 180px 0;
    position: relative;
}

.product-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
}

.product-hero .container {
    position: relative;
    z-index: 1;
}

.product-hero h1 {
    font-size: 3rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

.product-hero p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 20px;
}

@media (max-width: 992px) {
    .product-hero {
        padding: 120px 0 80px;
    }

    .product-hero h1 {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .product-hero {
        padding: 90px 0 60px;
    }

    .product-hero h1 {
        font-size: 1.8rem;
    }

    .product-hero p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .product-hero {
        padding: 70px 0 50px;
    }

    .product-hero h1 {
        font-size: 1.5rem;
    }

    .product-hero p {
        font-size: 0.9rem;
    }
}

.news-section {
    padding: 70px 0 90px;
    background: #f8fafd;
}

.news-wrapper {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 40px;
    align-items: start;
}

.news-main {
    min-width: 0;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.news-item {
    display: flex;
    gap: 28px;
    padding: 26px;
    background: #fff;
    border-radius: 12px;
    border: 1px solid #eef2f8;
    box-shadow: 0 4px 18px rgba(18, 83, 160, 0.04);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.news-item:hover {
    transform: translateY(-4px);
    border-color: #d9e6f5;
    box-shadow: 0 18px 40px rgba(18, 83, 160, 0.12);
}

.news-item .news-img {
    width: 260px;
    min-height: 170px;
    flex-shrink: 0;
    border-radius: 8px;
    overflow: hidden;
    background: #f5f6fa;
}

.news-item .news-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

/* 文字区 */
.news-item .news-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-item .news-title {
    font-size: 22px;
    font-weight: 700;
    color: #1a1a2e;
    line-height: 1.45;
    margin-bottom: 10px;
    transition: color 0.3s;
}

.news-item:hover .news-title {
    color: #1253A0;
}

.news-item .news-date {
    font-size: 13px;
    color: #9aa6b8;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.news-item .news-desc {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.8;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-item .news-more {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    font-weight: 500;
    color: #1253A0;
    transition: all 0.3s;
}

.news-item:hover .news-more {
    transform: translateX(4px);
}


.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 50px;
}

.pagination a {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 12px;
    border-radius: 8px;
    font-size: 14px;
    color: #666;
    background: #fff;
    border: 1px solid #e8ecf1;
    transition: all 0.25s;
}

.pagination a:hover {
    background: #eaf2fc;
    border-color: #1253A0;
    color: #1253A0;
}

.pagination a.active {
    background: #1253A0;
    border-color: #1253A0;
    color: #fff;
}

.pagination a.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pagination a.disabled:hover {
    background: #fff;
    border-color: #e8ecf1;
    color: #666;
}

.news-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sidebar-box {
    background: #fff;
    border: 1px solid #eef2f8;
    border-radius: 12px;
    padding: 24px 22px;
    box-shadow: 0 4px 18px rgba(18, 83, 160, 0.04);
}

.sidebar-title {
    position: relative;
    font-size: 18px;
    font-weight: 700;
    color: #1a1a2e;
    padding-left: 14px;
    margin-bottom: 18px;
    line-height: 1.4;
}

.sidebar-title::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    width: 4px;
    height: 18px;
    background: #1253A0;
    border-radius: 2px;
}

.sidebar-articles {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sidebar-articles li a {
    display: flex;
    gap: 12px;
    align-items: center;
}

.sidebar-thumb {
    width: 80px;
    height: 60px;
    flex-shrink: 0;
    border-radius: 6px;
    overflow: hidden;
    background: #f5f6fa;
}

.sidebar-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.sidebar-articles li a:hover .sidebar-thumb img {
    transform: scale(1.08);
}

.sidebar-info {
    flex: 1;
    min-width: 0;
}

.sidebar-article-title {
    font-size: 13.5px;
    font-weight: 500;
    color: #1a1a2e;
    line-height: 1.5;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.25s;
}

.sidebar-articles li a:hover .sidebar-article-title {
    color: #1253A0;
}

.sidebar-article-date {
    font-size: 12px;
    color: #9aa6b8;
}

@media (max-width: 1200px) {
    .news-wrapper {
        grid-template-columns: 1fr 300px;
        gap: 30px;
    }

    .news-item .news-img {
        width: 220px;
    }
}

@media (max-width: 992px) {
    .product-hero {
        padding: 120px 0 80px;
    }

    .product-hero h1 {
        font-size: 2.2rem;
    }

    .news-section {
        padding: 50px 0 60px;
    }

    .news-wrapper {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .news-sidebar {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 18px;
    }

    .sidebar-box {
        flex: 1 1 calc(50% - 9px);
        min-width: 260px;
    }
}

@media (max-width: 768px) {
    .product-hero {
        padding: 90px 0 60px;
    }

    .product-hero h1 {
        font-size: 1.8rem;
    }

    .product-hero p {
        font-size: 1rem;
    }

    .news-section {
        padding: 40px 0 50px;
    }

    .news-item {
        flex-direction: column;
        gap: 16px;
        padding: 18px;
    }

    .news-item .news-img {
        width: 100%;
        height: 180px;
        min-height: auto;
    }

    .news-item .news-title {
        font-size: 17px;
        margin-bottom: 8px;
    }

    .news-item .news-date {
        font-size: 12.5px;
        margin-bottom: 10px;
    }

    .news-item .news-desc {
        font-size: 13.5px;
        -webkit-line-clamp: 2;
        margin-bottom: 12px;
    }

    .sidebar-box {
        flex: 1 1 100%;
        min-width: 0;
        padding: 20px 18px;
    }

    .sidebar-title {
        font-size: 16px;
        margin-bottom: 14px;
    }
}

@media (max-width: 480px) {
    .product-hero {
        padding: 70px 0 50px;
    }

    .product-hero h1 {
        font-size: 1.5rem;
    }

    .product-hero p {
        font-size: 0.9rem;
    }

    .news-item {
        padding: 14px;
    }

    .news-item .news-img {
        height: 160px;
    }

    .news-item .news-title {
        font-size: 16px;
    }

    .news-item .news-desc {
        font-size: 12.5px;
    }

    .sidebar-links {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .pagination a {
        min-width: 32px;
        height: 32px;
        padding: 0 8px;
        font-size: 13px;
    }
}