/* ============================================
   Home Page / Landing Page Styles
   ============================================ */

/* ============================================
   Hero Slider Styles - Modern Professional Design
   ============================================ */
.hero-slider {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    background: #1a3d2a;
}

.hero-slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transform: scale(1.1);
    transition: all 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    will-change: opacity, transform;
}

.hero-slide.active {
    opacity: 1;
    transform: scale(1);
    z-index: 1;
}

.hero-slide.prev {
    transform: translateX(-100%) scale(0.95);
}

.hero-slide.next {
    transform: translateX(100%) scale(0.95);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 61, 42, 0.6) 0%, rgba(45, 95, 61, 0.6) 100%);
    z-index: 1;
}

.hero-slide .container {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    padding: 0 20px;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero-slide h1 {
    font-size: clamp(2.5em, 5vw, 4.5em);
    margin-bottom: 24px;
    color: #fff;
    font-weight: 700;
    letter-spacing: -1px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    animation: heroFadeInUp 1s cubic-bezier(0.4, 0, 0.2, 1) 0.2s both;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: clamp(1.3em, 2.5vw, 2em);
    margin-bottom: 20px;
    color: #52c97a;
    font-weight: 600;
    letter-spacing: 0.5px;
    animation: heroFadeInUp 1s cubic-bezier(0.4, 0, 0.2, 1) 0.4s both;
}

.hero-description {
    font-size: clamp(1em, 1.5vw, 1.3em);
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: heroFadeInUp 1s cubic-bezier(0.4, 0, 0.2, 1) 0.6s both;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    animation: heroFadeInUp 1s cubic-bezier(0.4, 0, 0.2, 1) 0.8s both;
}

/* Navigation Buttons - Modern Design */
.hero-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    font-size: 28px;
    font-weight: 300;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.hero-nav-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(39, 174, 96, 0.3), rgba(82, 201, 122, 0.3));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.hero-nav-btn:hover {
    background: rgba(39, 174, 96, 0.9);
    border-color: #27ae60;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 6px 30px rgba(39, 174, 96, 0.4);
}

.hero-nav-btn:hover::before {
    opacity: 1;
}

.hero-nav-btn:active {
    transform: translateY(-50%) scale(0.95);
}

.prev-btn {
    left: 40px;
}

.next-btn {
    right: 40px;
}

/* Indicators - Modern Design */
.hero-indicators {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    align-items: center;
    z-index: 10;
    padding: 12px 20px;
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.indicator::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: scale(0);
    transition: transform 0.3s ease;
}

.indicator:hover {
    background: rgba(255, 255, 255, 0.7);
    transform: scale(1.3);
    border-color: rgba(255, 255, 255, 0.5);
}

.indicator:hover::before {
    transform: scale(1);
}

.indicator.active {
    width: 32px;
    height: 10px;
    border-radius: 5px;
    background: linear-gradient(90deg, #27ae60, #52c97a);
    border-color: transparent;
    box-shadow: 0 0 15px rgba(39, 174, 96, 0.6);
}

.indicator.active::before {
    display: none;
}

/* Animations */
@keyframes heroFadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ============================================
   Services Overview Section
   ============================================ */
.services-overview {
    padding: 80px 0;
    background: #fff;
}

.services-overview h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 50px;
    color: #1e8449;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.services-overview h2.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Key Features Section
   ============================================ */
.key-features {
    padding: 80px 0;
    background: #f8f9fa;
}

.key-features h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 50px;
    color: #1e8449;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.key-features h2.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.feature-item {
    text-align: center;
    padding: 30px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.feature-item.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.feature-item:nth-child(1) { transition-delay: 0.1s; }
.feature-item:nth-child(2) { transition-delay: 0.2s; }
.feature-item:nth-child(3) { transition-delay: 0.3s; }
.feature-item:nth-child(4) { transition-delay: 0.4s; }

.feature-icon {
    font-size: 3em;
    color: #27ae60;
    margin-bottom: 15px;
}

.feature-item h3 {
    margin-bottom: 10px;
    color: #1e8449;
}

.feature-item p {
    color: #666;
}

/* ============================================
   Applications Section (Home Page)
   ============================================ */
.applications {
    padding: 80px 0;
    background: #fff;
}

.applications h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 50px;
    color: #1e8449;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.applications h2.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.application-card {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: opacity 0.6s ease, transform 0.6s ease;
    opacity: 0;
    transform: translateX(-30px);
}

.application-card.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.applications-grid .application-card:nth-child(1) { transition-delay: 0.1s; }
.applications-grid .application-card:nth-child(2) { transition-delay: 0.2s; }
.applications-grid .application-card:nth-child(3) { transition-delay: 0.3s; }

.application-card:hover {
    transform: translateX(0) translateY(-5px);
    box-shadow: 0 10px 30px rgba(39, 174, 96, 0.2);
}

.application-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.application-card h3 {
    padding: 20px;
    background: #fff;
    margin: 0;
}

.application-card h3 a {
    color: #1e8449;
    text-decoration: none;
    font-size: 1.2em;
    font-weight: 600;
}

.application-card h3 a:hover {
    color: #27ae60;
}

/* ============================================
   Case Studies Section
   ============================================ */
.case-studies {
    padding: 80px 0;
    background: #f8f9fa;
}

.case-studies h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 50px;
    color: #1e8449;
}

/* ============================================
   CTA Section (Home Page)
   ============================================ */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #1e8449 0%, #2d5f3d 100%);
    color: #fff;
    text-align: center;
}

.cta-section h2 {
    font-size: 2.5em;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.2em;
    margin-bottom: 30px;
    color: #ecf0f1;
}

/* ============================================
   视差滚动 Section Styles
   ============================================ */
.parallax-section {
    position: relative;
    min-height: 700px;
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: #1a3d2a; /* 备用背景色，图片加载前显示 */
}

.parallax-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent; /* 移除渐变覆盖层 */
    z-index: 1;
}

.parallax-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    padding: 80px 20px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8); /* 添加文字阴影，确保在背景图片上清晰可见 */
}

.parallax-content.in-view {
    opacity: 1;
    transform: translateY(0);
}

.parallax-content h2 {
    font-size: clamp(2em, 4vw, 3.5em);
    margin-bottom: 20px;
    color: #fff;
    font-weight: 700;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.9); /* 标题阴影更明显 */
}

.parallax-content > p {
    font-size: 1.2em;
    margin-bottom: 50px;
    color: #fff;
    text-shadow: 1px 1px 6px rgba(0, 0, 0, 0.8);
}

.parallax-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.stat-item {
    text-align: center;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.stat-item.in-view {
    opacity: 1;
    transform: translateY(0);
}

.stat-number {
    font-size: clamp(2.5em, 5vw, 4em);
    font-weight: 700;
    color: #52c97a;
    margin-bottom: 10px;
    line-height: 1.2;
}

.stat-label {
    font-size: 1em;
    color: #ecf0f1;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ============================================
   工厂展示 Section Styles - 悬停展开效果
   ============================================ */
.factory-showcase {
    padding: 100px 0;
    background: #f8f9fa;
    width: 100%;
    overflow: hidden; /* 防止内容溢出 */
}

.factory-showcase-header {
    margin-bottom: 60px;
}

.factory-showcase h2 {
    text-align: center;
    font-size: clamp(2em, 4vw, 3em);
    margin-bottom: 16px;
    color: #1a3d2a;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1em;
    color: #666;
    margin-bottom: 0;
}

.factory-grid {
    display: flex;
    gap: 0;
    width: 100vw; /* 完整视口宽度 */
    margin: 0;
    overflow: hidden; /* 移除滚动 */
    position: relative;
    left: 50%;
    transform: translateX(-50%); /* 居中并突破父容器限制 */
}

.factory-card {
    background: #fff;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    height: 500px; /* 固定高度，悬停时不变 */
    flex: 1; /* 平均分配空间 */
    min-width: 0; /* 允许收缩 */
    display: flex;
    flex-direction: column;
    border-right: 1px solid rgba(0, 0, 0, 0.05);
}

.factory-card:last-child {
    border-right: none;
}

/* 悬停效果 - 水平展开 */
.factory-card:hover {
    z-index: 10; /* 提升层级 */
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2); /* 增强阴影 */
    flex: 2; /* 悬停时占据更多空间 */
    min-width: 350px; /* 最小展开宽度 */
}

.factory-card-image {
    width: 100%;
    height: 100%;
    overflow: hidden;
    position: absolute;
    top: 0;
    left: 0;
}

.factory-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.factory-card:hover .factory-card-image img {
    transform: scale(1.1);
}

.factory-card-caption-wrapper {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.5) 50%, rgba(0, 0, 0, 0) 100%);
    padding: 24px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: flex-end;
    height: auto;
    max-height: 200px;
    overflow: hidden;
}

/* 悬停时展开背景 */
.factory-card:hover .factory-card-caption-wrapper {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.7) 50%, rgba(0, 0, 0, 0.5) 100%);
    max-height: 100%; /* 覆盖整个卡片 */
    align-items: flex-start; /* 内容从顶部开始 */
    padding: 30px 24px;
    justify-content: center; /* 水平居中 */
}

.factory-card-caption {
    width: 100%;
    color: #fff;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.factory-card-caption h3 {
    font-size: 1.4em;
    margin-bottom: 12px;
    color: #fff;
    font-weight: 600;
    white-space: nowrap; /* 标题不换行 */
    overflow: hidden;
    text-overflow: ellipsis;
}

.factory-card:hover .factory-card-caption h3 {
    white-space: normal; /* 悬停时允许换行 */
}

.factory-card-summary {
    color: #ecf0f1;
    font-size: 0.95em;
    line-height: 1.6;
    margin-bottom: 12px;
}

/* 可展开内容区域 */
.factory-card-expandable {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    width: 0;
}

.factory-card:hover .factory-card-expandable {
    opacity: 1;
    max-height: 400px;
    width: 100%;
    margin-top: 16px;
}

/* 悬停时显示更多内容 */
.factory-card-description {
    color: #ecf0f1;
    font-size: 0.9em;
    line-height: 1.6;
    margin-bottom: 16px;
}

.factory-card-details {
    margin-top: 16px;
}

.factory-card-details ul {
    list-style: none;
    padding: 0;
    margin: 0 0 20px 0;
}

.factory-card-details ul li {
    padding: 8px 0;
    color: #ecf0f1;
    font-size: 0.9em;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.factory-card-details ul li:last-child {
    border-bottom: none;
}

.factory-card-details ul li strong {
    color: #52c97a;
    margin-right: 8px;
}

.btn-outline {
    display: inline-block;
    padding: 10px 24px;
    background: transparent;
    color: #52c97a;
    border: 2px solid #52c97a;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    text-align: center;
    margin-top: 8px;
}

.btn-outline:hover {
    background: #52c97a;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(82, 201, 122, 0.3);
}

/* ============================================
   左右分栏布局 Section Styles
   ============================================ */
.split-section {
    padding: 100px 0;
    background: #fff;
}

.split-section-alt {
    background: #f8f9fa;
}

.split-container {
    max-width: 1200px; /* 与 header 导航栏的 container 宽度一致 */
    margin: 0 auto;
    padding: 0 20px; /* 与 header 导航栏的 padding 一致 */
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.split-content {
    padding: 20px;
}

.split-content h2 {
    font-size: clamp(2em, 4vw, 3em);
    margin-bottom: 16px;
    color: #1a3d2a;
    font-weight: 700;
}

.split-subtitle {
    font-size: 1.2em;
    color: #27ae60;
    margin-bottom: 20px;
    font-weight: 600;
}

.split-content > p {
    font-size: 1.05em;
    line-height: 1.8;
    color: #555;
    margin-bottom: 30px;
}

.split-features {
    list-style: none;
    padding: 0;
    margin: 0 0 30px 0;
}

.split-features li {
    padding: 12px 0;
    padding-left: 30px;
    position: relative;
    color: #555;
    font-size: 1em;
    line-height: 1.6;
}

.split-features li::before {
    content: '\2713'; /* Unicode 转义序列，确保正确显示 ✓ */
    position: absolute;
    left: 0;
    color: #27ae60;
    font-weight: 700;
    font-size: 1.2em;
}

.split-image {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.split-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 图片从右侧滑入动画 */
.split-image-slide {
    opacity: 0;
    transform: translateX(100px);
    animation: slideInRight 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes slideInRight {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.split-image-slide:hover img {
    transform: scale(1.05);
}

/* 图片从左侧滑入动画 */
.split-image-slide-left {
    opacity: 0;
    transform: translateX(-100px);
    animation: slideInLeft 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes slideInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.split-image-slide-left:hover img {
    transform: scale(1.05);
}

/* 图片淡入+缩放动画 */
.split-image-fade {
    opacity: 0;
    transform: scale(0.9);
    animation: fadeInScale 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes fadeInScale {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.split-image-fade:hover img {
    transform: scale(1.05);
}

/* ============================================
   YouTube 视频产品展示 Section Styles
   ============================================ */
.video-showcase {
    padding: 100px 0;
    background: #fff;
}

.video-showcase h2 {
    text-align: center;
    font-size: clamp(2em, 4vw, 3em);
    margin-bottom: 16px;
    color: #1a3d2a;
}

.video-showcase .section-subtitle {
    text-align: center;
    font-size: 1.1em;
    color: #666;
    margin-bottom: 60px;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.video-item {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.video-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.video-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 宽高比 */
    overflow: hidden;
    background: #000;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-item h3 {
    padding: 24px 24px 12px;
    font-size: 1.3em;
    color: #1a3d2a;
    font-weight: 600;
    margin: 0;
}

.video-item p {
    padding: 0 24px 24px;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* ============================================
   Home Page Responsive Styles
   ============================================ */
@media (max-width: 1400px) {
    .factory-card:hover {
        flex: 2;
        min-width: 300px; /* 中等屏幕悬停宽度 */
    }
}

@media (max-width: 1024px) {
    .parallax-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }

    .factory-card:hover {
        flex: 2;
        min-width: 280px; /* 平板悬停宽度 */
    }

    .split-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .split-image {
        order: -1;
    }

    .split-section-alt .split-image {
        order: 0;
    }

    .video-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .hero-slider {
        min-height: 500px;
        height: 70vh;
    }

    .hero-slide h1 {
        font-size: 2em;
        margin-bottom: 16px;
    }

    .hero-subtitle {
        font-size: 1.2em;
        margin-bottom: 16px;
    }

    .hero-description {
        font-size: 0.95em;
        margin-bottom: 30px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }

    .hero-nav-btn {
        width: 48px;
        height: 48px;
        font-size: 24px;
    }

    .prev-btn {
        left: 16px;
    }

    .next-btn {
        right: 16px;
    }

    .hero-indicators {
        bottom: 24px;
        padding: 10px 16px;
        gap: 10px;
    }

    .indicator {
        width: 8px;
        height: 8px;
    }

    .indicator.active {
        width: 24px;
        height: 8px;
    }

    .parallax-section {
        min-height: 400px;
        background-attachment: scroll;
    }

    .parallax-content {
        padding: 60px 20px;
    }

    .parallax-stats {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .factory-showcase {
        padding: 60px 0;
    }

    .factory-card {
        flex: 1;
        min-width: 250px; /* 移动端最小宽度 */
        height: 400px;
        border-right: 1px solid rgba(0, 0, 0, 0.05);
    }
    
    .factory-card:hover {
        flex: 1.5;
        min-width: 280px; /* 移动端悬停宽度 */
    }

    .factory-card-caption-wrapper {
        max-height: 180px;
    }
    
    .factory-card:hover .factory-card-caption-wrapper {
        max-height: 100%;
    }

    .factory-card-expandable {
        opacity: 0;
        max-height: 0;
    }
    
    .factory-card:hover .factory-card-expandable {
        opacity: 1;
        max-height: 300px;
    }

    .split-section {
        padding: 60px 0;
    }

    .split-container {
        gap: 30px;
    }

    .video-showcase {
        padding: 60px 0;
    }

    .video-grid {
        gap: 30px;
    }
}