/* ===== 轮播图样式 (使用 img 标签，固定 H1，独立描述) ===== */
.yzg-hero-slider {
    position: relative;
    height: 600px;
    margin-top: 82px;
    overflow: hidden;
}
.yzg-fixed-heading {
    position: absolute;
    top: 40%;
    left: 10%;
    transform: translateY(-50%);
    z-index: 20;
    max-width: 650px;
    pointer-events: none;
}
.yzg-fixed-heading h1 {
    background: rgba(0, 102, 166, 0.75);
    color: white;
    padding: 40px;
    border-radius: 8px;
    font-size: 2.8rem;
    line-height: 1.2;
    margin: 0;
    display: inline-block;
    width: 100%;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
    font-weight: 600;
}
.yzg-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
    z-index: 1;
}
.yzg-slide.yzg-active {
    opacity: 1;
    z-index: 2;
}
.yzg-slide-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.yzg-slide-description {
    position: absolute;
    top: 60%;
    left: 10%;
    z-index: 15;
    max-width: 650px;
    background: rgba(0, 102, 166, 0.75);
    padding: 20px 40px;
    border-radius: 8px;
    color: white;
    pointer-events: none;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
    font-weight: 500;
}
.yzg-slide-description p,
.yzg-slide-description h2 {
    margin: 0;
    font-size: 1.4rem;
    line-height: 1.5;
    color: white;
}
.yzg-slide-description h2 {
    font-weight: 500;
    letter-spacing: 1px;
}
.yzg-slider-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    z-index: 30;
    gap: 12px;
}
.yzg-slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}
.yzg-slider-dot.yzg-active {
    background-color: white;
    transform: scale(1.2);
}
@media (max-width: 1200px) {
    .yzg-hero-slider {
        height: 550px;
    }
    .yzg-fixed-heading {
        left: 8%;
        max-width: 550px;
    }
    .yzg-fixed-heading h1 {
        font-size: 2.4rem;
        padding: 30px;
    }
    .yzg-slide-description {
        left: 8%;
        max-width: 550px;
        padding: 25px;
    }
    .yzg-slide-description p,
    .yzg-slide-description h2 {
        font-size: 1.5rem;
    }
}
@media (max-width: 768px) {
    .yzg-hero-slider {
        height: 500px;
    }
    .yzg-fixed-heading {
        top: 35%;
        left: 5%;
        right: 5%;
        max-width: 90%;
    }
    .yzg-fixed-heading h1 {
        font-size: 1.8rem;
        padding: 20px;
    }
    .yzg-slide-description {
        top: 50%;
        left: 5%;
        padding: 15px 25px;
        max-width: 90%;
    }
    .yzg-slide-description p,
    .yzg-slide-description h2 {
        font-size: 1.2rem;
    }
}

/* ===== 产品品牌展示 ===== */
.yzg-product-brands {
    background-color: white;
    padding: 70px 0;
}
.yzg-brands-title {
    text-align: center;
    margin-bottom: 50px;
}
.yzg-brands-title h2 {
    font-size: 2.2rem;
    color: var(--yzg-secondary-color);
    margin-bottom: 10px;
}
.yzg-brands-title p {
    color: var(--yzg-text-light);
    font-size: 1.1rem;
}
.yzg-brands-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}
.yzg-brand-item {
    background-color: white;
    width: 220px;
    height: 170px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--yzg-shadow-light);
    transition: var(--yzg-transition);
    border: 1px solid var(--yzg-border-color);
    text-decoration: none;
    color: inherit;
    display: block;
    text-align: center;
}
.yzg-brand-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--yzg-shadow-medium);
    border-color: var(--yzg-primary-blue);
}
.yzg-brand-logo-container {
    width: 100%;
    height: 110px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.yzg-brand-logo {
    max-width: 100%;
    max-height: 110px;
    object-fit: contain;
}
.yzg-brand-content {
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-top: 1px solid var(--yzg-border-color);
    background-color: white;
}
.yzg-brand-content h3 {
    font-size: 1.1rem;
    color: var(--yzg-secondary-color);
}

/* ===== 行业解决方案中心 ===== */
.yzg-solutions-section {
    background-color: var(--yzg-light-bg);
}
.yzg-solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 30px;
}
.yzg-solution-card {
    background-color: var(--yzg-card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--yzg-shadow-light);
    transition: var(--yzg-transition);
    text-align: center;
    padding: 30px 20px;
    text-decoration: none;
    color: inherit;
    display: block;
    border: 1px solid var(--yzg-border-color);
}
.yzg-solution-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--yzg-shadow-medium);
    border-color: var(--yzg-primary-blue);
}
.yzg-solution-icon {
    font-size: 2.8rem;
    color: var(--yzg-primary-blue);
    margin-bottom: 20px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.yzg-solution-card h3 {
    font-size: 1.3rem;
    color: var(--yzg-secondary-color);
    margin-bottom: 10px;
}
.yzg-solution-card p {
    color: var(--yzg-text-light);
    font-size: 0.95rem;
    line-height: 1.5;
    margin-top: 10px;
}
.yzg-more-solutions {
    text-align: center;
    margin-top: 50px;
    padding-top: 40px;
    border-top: 1px dashed var(--yzg-border-color);
}

/* ===== 真空系统产品滚动展示 ===== */
.yzg-product-showcase {
    background-color: white;
    padding: 50px 0;
    overflow: hidden;
    position: relative;
    margin-top: 40px;
}
.yzg-showcase-title {
    text-align: center;
    margin-bottom: 40px;
}
.yzg-showcase-title h2 {
    font-size: 2.2rem;
    color: var(--yzg-secondary-color);
    margin-bottom: 10px;
}
.yzg-showcase-title p {
    color: var(--yzg-text-light);
    font-size: 1.1rem;
}
.yzg-showcase-container {
    display: flex;
    width: calc(250px * 14);
    animation: yzg-scroll 40s linear infinite;
}
@keyframes yzg-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-250px * 7)); }
}
.yzg-showcase-item {
    width: 230px;
    height: 320px;
    margin: 0 10px;
    flex-shrink: 0;
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--yzg-shadow-light);
    transition: var(--yzg-transition);
    border: 1px solid var(--yzg-border-color);
}
.yzg-showcase-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--yzg-shadow-medium);
    border-color: var(--yzg-primary-blue);
}
.yzg-showcase-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}
.yzg-showcase-content {
    padding: 20px;
    height: 100px;
}
.yzg-showcase-content h3 {
    font-size: 1.1rem;
    color: var(--yzg-secondary-color);
    margin-bottom: 5px;
}
.yzg-showcase-content p {
    color: var(--yzg-text-light);
    font-size: 0.9rem;
    line-height: 1.2;
}

/* ===== 核心能力展示 ===== */
.yzg-capabilities-section {
    background-color: white;
}
.yzg-process-flow-wrapper {
    background-color: var(--yzg-light-bg);
    padding: 40px 30px;
    border-radius: 12px;
    margin-bottom: 60px;
}
.yzg-process-visual-bar {
    display: flex;
    justify-content: space-between;
    flex-wrap: nowrap;
}
.yzg-visual-step {
    flex: 1;
    text-align: center;
    background: white;
    border-radius: 10px;
    margin: 0 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.07);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    min-width: 0;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--yzg-border-color);
}
.yzg-visual-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
    border-color: var(--yzg-primary-blue);
}
.yzg-step-img-container {
    width: 100%;
    height: 150px;
    overflow: hidden;
}
.yzg-step-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.yzg-visual-step:hover .yzg-step-img {
    transform: scale(1.05);
}
.yzg-step-header {
    padding: 25px 15px 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.yzg-step-icon {
    font-size: 2rem;
    color: var(--yzg-primary-blue);
    margin-bottom: 12px;
}
.yzg-step-title {
    font-size: 1.2rem;
    color: var(--yzg-secondary-color);
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.3;
}
.yzg-step-brief {
    font-size: 0.9rem;
    color: var(--yzg-text-light);
    line-height: 1.5;
    margin-top: auto;
}
.yzg-capability-category {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}
.yzg-capability-title {
    grid-column: 1 / -1;
    margin-bottom: 20px;
    font-size: 2rem;
    border-left: 5px solid var(--yzg-secondary-orange);
    padding-left: 20px;
    color: var(--yzg-primary-blue);
}
.yzg-capability-point {
    display: flex;
    flex-direction: column;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--yzg-shadow-light);
    border: 1px solid var(--yzg-border-color);
    transition: none;
    height: 100%;
}
.yzg-capability-point:hover {
    box-shadow: var(--yzg-shadow-light);
    border-color: var(--yzg-border-color);
    transform: none;
}
.yzg-capability-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
    background-color: #f0f0f0;
}
.yzg-capability-text {
    padding: 20px 25px;
    flex: 1;
}
.yzg-capability-text strong {
    color: var(--yzg-primary-blue);
    font-size: 1.1rem;
    display: block;
    margin-bottom: 8px;
}

/* ===== 公司简介 ===== */
.yzg-about-section {
    background-color: var(--yzg-light-bg);
}
.yzg-about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}
.yzg-about-text {
    flex: 1;
}
.yzg-about-text h3 {
    font-size: 1.8rem;
    color: var(--yzg-primary-blue);
    margin-bottom: 20px;
}
.yzg-about-text p {
    margin-bottom: 20px;
    color: var(--yzg-text-light);
}
.yzg-about-image {
    flex: 1;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--yzg-shadow-medium);
}
.yzg-about-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* ===== 新闻动态模块（新增） ===== */
.yzg-news-section {
    background-color: var(--yzg-light-bg, #f8fafc);
    padding: 70px 0;
}
.yzg-news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 30px;
}
.yzg-news-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
}
.yzg-news-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.12);
    border-color: var(--yzg-primary-blue, #0066a6);
}
.yzg-news-img-wrapper {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background-color: #f1f5f9;
}
.yzg-news-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.yzg-news-card:hover .yzg-news-img {
    transform: scale(1.03);
}
.yzg-news-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.yzg-news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    font-size: 0.85rem;
    color: #5a6e8a;
}
.yzg-news-date i {
    margin-right: 5px;
}
.yzg-news-category {
    background-color: rgba(0, 127, 204, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
    color: var(--yzg-primary-blue);
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s;
	font-size: 0.9rem;
}
.yzg-news-category:hover {
    background-color: #0066a6;
    text-decoration: none;
	color: white;
	font-weight: 600;
	font-size: 0.9rem;
}
.yzg-news-title {
    font-size: 1.2rem;
    line-height: 1.4;
    margin: 0 0 20px 0;
    font-weight: 600;
}
.yzg-news-title a {
    color: var(--yzg-secondary-color, #1e293b);
    text-decoration: none;
    transition: color 0.2s;
}
.yzg-news-title a:hover {
    color: var(--yzg-primary-blue, #0066a6);
    text-decoration: underline;
}
.yzg-news-readmore {
    margin-top: auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
    color: var(--yzg-primary-blue, #0066a6);
    text-decoration: none;
    font-size: 0.9rem;
    transition: gap 0.2s;
}
.yzg-news-readmore:hover {
    gap: 10px;
    text-decoration: underline;
}
.yzg-news-footer {
    text-align: center;
    margin-top: 50px;
}
.yzg-news-more-btn {
    background-color: transparent;
    border: 2px solid var(--yzg-primary-blue, #0066a6);
    color: var(--yzg-primary-blue, #0066a6);
    padding: 12px 32px;
    border-radius: 40px;
    font-weight: 600;
    transition: all 0.3s;
}
.yzg-news-more-btn:hover {
    background-color: var(--yzg-primary-blue, #0066a6);
    color: white;
    text-decoration: none;
}

/* 新闻模块响应式 */
@media (max-width: 1200px) {
    .yzg-news-grid {
        gap: 25px;
    }
    .yzg-news-img-wrapper {
        height: 180px;
    }
    .yzg-news-title {
        font-size: 1.1rem;
    }
}
@media (max-width: 768px) {
    .yzg-news-grid {
        grid-template-columns: 1fr;
        gap: 25px;
        padding: 0 15px;
    }
    .yzg-news-section {
        padding: 50px 0;
    }
    .yzg-news-img-wrapper {
        height: 200px;
    }
}

/* ===== 原有响应式设计（保留） ===== */
@media (max-width: 1200px) {
    .yzg-brands-container {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    .yzg-process-visual-bar {
        margin: 0 -5px;
    }
    .yzg-visual-step {
        margin: 0 5px;
    }
    .yzg-step-header {
        padding: 20px 10px 15px;
    }
    .yzg-step-title {
        font-size: 1.1rem;
    }
    .yzg-step-brief {
        font-size: 0.85rem;
    }
}
@media (max-width: 768px) {
    .yzg-brands-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
        padding: 0 15px;
    }
    .yzg-brand-item {
        width: 100%;
        height: auto;
        min-height: 150px;
    }
    .yzg-brand-logo-container {
        height: 100px;
        padding: 10px;
    }
    .yzg-brand-logo {
        max-height: 80px;
    }
    .yzg-brand-content {
        height: auto;
        padding: 12px 8px;
    }
    .yzg-brand-content h3 {
        font-size: 1rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .yzg-showcase-container {
        animation: yzg-scroll-mobile 30s linear infinite;
        width: calc(200px * 14);
    }
    @keyframes yzg-scroll-mobile {
        0% { transform: translateX(0); }
        100% { transform: translateX(calc(-200px * 7)); }
    }
    .yzg-showcase-item {
        width: 180px;
    }
    .yzg-showcase-img {
        height: 150px;
    }
    .yzg-process-visual-bar {
        flex-direction: column;
    }
    .yzg-visual-step {
        margin: 0 0 20px 0;
        flex-direction: row;
        text-align: left;
        align-items: center;
    }
    .yzg-visual-step:last-child {
        margin-bottom: 0;
    }
    .yzg-step-img-container {
        width: 120px;
        height: 120px;
        flex-shrink: 0;
        border-radius: 10px 0 0 10px;
    }
    .yzg-step-header {
        padding: 20px;
        flex-grow: 1;
    }
    .yzg-step-icon {
        margin-bottom: 8px;
        font-size: 1.8rem;
    }
    .yzg-step-title {
        font-size: 1.1rem;
        margin-bottom: 8px;
    }
    .yzg-step-brief {
        font-size: 0.85rem;
        margin-top: 0;
    }
    .yzg-capability-category {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .yzg-capability-img {
        height: 180px;
    }
    .yzg-capability-text {
        padding: 15px 20px;
    }
    .yzg-about-content {
        flex-direction: column;
    }
    .yzg-cases-container {
        flex-direction: column;
    }
    .yzg-case-card {
        max-width: 100%;
    }
    .yzg-product-brands {
        padding: 40px 0;
    }
    .yzg-brands-title {
        margin-bottom: 30px;
    }
    .yzg-brands-title h2 {
        font-size: 1.8rem;
        line-height: 1.3;
    }
    .yzg-brands-title p {
        font-size: 1rem;
        padding: 0 15px;
    }
    .yzg-solutions-grid {
        grid-template-columns: 1fr;
    }
}
@media screen and (min-width: 768px) and (max-width: 1199px) {

    .yzg-container {
        width: 100%;
        max-width: 1200px;
        padding-left: 20px;
        padding-right: 20px;
        margin: 0 auto;
    }
    .yzg-brands-container,
    .yzg-solutions-grid,
    .yzg-process-visual-bar {
        max-width: 100%;
        overflow-x: auto;
    }
    .yzg-section-title h2 {
        font-size: 2.2rem;
    }
    .yzg-hero-slider {
        height: 500px;
    }
}