:root {
    /* 参考LiDong网站的深色专业配色方案 */
    --primary-bg: #FFFFFF;
    --secondary-bg: #F6F8FC;
    --dark-bg: #102a52;
    --accent-primary: #2e6bd6;
    --accent-secondary: #ff8c1a;
    --text-primary: #1a3a6b;
    --text-secondary: #7a8ba0;
    --text-light: #999999;
    --border-color: #E5E5E5;
    --shadow-sm: 0 2px 12px rgba(0,0,0,0.08);
    --shadow-md: 0 6px 24px rgba(22,54,92,0.08);
    --shadow-lg: 0 8px 28px rgba(9,43,85,0.1);
}

/* 重点文字标签 */
.highlight-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    line-height: 1.4;
    margin: 0 4px;
}

.highlight-tag.blue {
    background: var(--accent-primary);
    color: white;
}

.highlight-tag.red {
    background: #DC2626;
    color: white;
}

.highlight-tag.orange {
    background: var(--accent-secondary);
    color: white;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
    overflow-x: hidden;
}

/* 图片优化 - 防止闪烁黑屏 */
img {
    display: block;
    max-width: 100%;
    height: auto;
    background-color: var(--secondary-bg);
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* 导航栏 - 更精致 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateZ(0);
    will-change: box-shadow;
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0;
    align-items: center;
}

.nav-menu li {
    position: relative;
}

.nav-menu > li > a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    position: relative;
    transition: color 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0 20px;
    display: block;
}

.nav-menu > li:not(:last-child) > a::after {
    content: '/';
    position: absolute;
    right: 0;
    color: var(--accent-primary);
    font-weight: 400;
}

.nav-menu a:hover {
    color: var(--accent-primary);
}

/* 下拉菜单 */
.nav-menu .dropdown {
    position: relative;
}

.nav-menu .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 180px;
    box-shadow: var(--shadow-md);
    border-radius: 6px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) translateZ(0);
    transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1), 
                visibility 0.25s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    margin-top: 10px;
    will-change: transform, opacity;
}

.nav-menu .dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) translateZ(0);
}

.nav-menu .dropdown-menu a {
    display: block;
    padding: 10px 20px;
    color: var(--text-primary);
    font-size: 13px;
    transition: background-color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                color 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-menu .dropdown-menu a::after {
    display: none;
}

.nav-menu .dropdown-menu a:hover {
    background: var(--secondary-bg);
    color: var(--accent-primary);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-primary);
}

/* Hero区域 - 参考LiDong深色渐变风格 */
.hero {
    min-height: 600px;
    display: flex;
    align-items: center;
    padding: 120px 40px 80px;
    background: linear-gradient(120deg, #102a52 0%, #1a3a6b 45%, #2e6bd6 100%);
    position: relative;
    overflow: hidden;
    color: #fff;
}

.hero::before {
    content: '';
    position: absolute;
    right: -120px;
    bottom: -160px;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    z-index: 0;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #fff;
    letter-spacing: -1px;
}

.hero-content p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(10px);
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

/* CTA按钮 - 参考LiDong橙色按钮风格 */
.cta-button {
    display: inline-block;
    padding: 13px 34px;
    background: var(--accent-secondary);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    transform: translateZ(0);
    will-change: transform;
}

.cta-button:hover {
    background: #e67a00;
    transform: translateY(-2px) translateZ(0);
    box-shadow: 0 6px 18px rgba(255, 140, 26, 0.4);
}

.cta-button.secondary {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.7);
    margin-left: 14px;
}

.cta-button.secondary:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px) translateZ(0);
}

/* Section通用样式 */
.section {
    padding: 80px 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 15px;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 特性卡片 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.feature-card {
    background: var(--primary-bg);
    padding: 35px 28px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    transform: translateZ(0);
    will-change: transform;
}

.feature-card:hover {
    transform: translateY(-5px) translateZ(0);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-primary);
}

.feature-icon {
    width: 100%;
    height: 80px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--secondary-bg);
    border-radius: 6px;
    overflow: hidden;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.feature-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-description {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 产品网格 */
/* 产品中心布局 - 左侧分类栏 */
.products-container {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 40px;
    margin-top: 50px;
}

.products-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--accent-primary);
}

.category-list {
    list-style: none;
}

.category-item {
    margin-bottom: 8px;
}

.category-item button {
    width: 100%;
    text-align: left;
    padding: 12px 16px;
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                color 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transform: translateZ(0);
}

.category-item button:hover {
    background: var(--secondary-bg);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.category-item button.active {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.category-count {
    font-size: 12px;
    opacity: 0.8;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.product-card {
    background: #f0f0f0;
    border-radius: 8px;
    overflow: hidden;
    border: none;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    transform: translateZ(0);
    will-change: transform;
}

.product-card:hover {
    transform: translateY(-4px) translateZ(0);
    box-shadow: 0 12px 28px rgba(13,42,82,.14);
}

.product-image {
    width: 100%;
    height: 240px;
    object-fit: contain;
    background: #fff;
    padding: 18px;
    transition: transform 1.2s ease;
    transform: translateZ(0);
}

.product-card:hover .product-image {
    transform: scale(1.05) translateZ(0);
}

.product-info {
    padding: 24px;
}

.product-category {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(0,102,204,0.1);
    color: var(--accent-primary);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.product-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
    line-height: 1.4;
}

.product-description {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 15px;
}

.product-features {
    list-style: none;
    margin-bottom: 15px;
}

.product-features li {
    font-size: 12px;
    color: var(--text-secondary);
    padding: 4px 0;
    padding-left: 20px;
    position: relative;
}

.product-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: 600;
}

.product-link {
    color: var(--accent-primary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: gap 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-link:hover {
    gap: 10px;
}

/* 产品分类过滤 */
.product-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 10px 24px;
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: background-color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateZ(0);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

/* 案例卡片 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 30px;
}

.case-card {
    background: var(--primary-bg);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #e4eaf2;
    box-shadow: 0 8px 22px rgba(13,42,82,.07);
    transition: transform 0.3s ease,
                box-shadow 0.3s ease;
    transform: translateZ(0);
}

.case-card:hover {
    box-shadow: 0 12px 32px rgba(13,42,82,.12);
    transform: translateY(-4px) translateZ(0);
}

.case-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 1.2s ease;
}

.case-card:hover .case-image {
    transform: scale(1.05);
}

.case-info {
    padding: 28px;
}

.case-title {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.case-description {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 10px;
}

/* 新闻列表 */
.news-list {
    max-width: 900px;
    margin: 0 auto;
}

.news-item {
    background: #f5f7fa;
    padding: 32px;
    border-radius: 8px;
    border: 1px solid #e5eaf1;
    border-top: 3px solid var(--accent-primary);
    margin-bottom: 25px;
    transition: transform 0.3s ease,
                box-shadow 0.3s ease,
                border-color 0.3s ease;
    transform: translateZ(0);
}

.news-item:hover {
    box-shadow: 0 8px 24px rgba(13,42,82,.1);
    border-top-color: var(--accent-secondary);
    transform: translateY(-2px) translateZ(0);
}

.news-date {
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.news-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.news-excerpt {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 15px;
}

.news-link {
    color: var(--accent-primary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: gap 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.news-link:hover {
    gap: 10px;
}

/* 联系表单 */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info {
    padding: 20px 0;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

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

.contact-icon {
    font-size: 28px;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.contact-details p {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 3px 0;
}

.contact-form {
    background: var(--secondary-bg);
    padding: 40px;
    border-radius: 8px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 13px;
    font-family: inherit;
    background: var(--primary-bg);
    color: var(--text-primary);
    transition: border-color 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-button {
    width: 100%;
    padding: 14px;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateZ(0);
    will-change: transform;
}

.submit-button:hover {
    background: var(--accent-secondary);
    transform: translateY(-2px) translateZ(0);
}

/* 时间线 */
.timeline {
    max-width: 900px;
    margin: 50px auto;
    position: relative;
    padding-left: 60px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    padding: 24px;
    background: var(--primary-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -47px;
    top: 28px;
    width: 14px;
    height: 14px;
    background: var(--accent-primary);
    border: 3px solid var(--primary-bg);
    border-radius: 50%;
}

.timeline-year {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 8px;
}

.timeline-content {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 页脚 */
.footer {
    background: var(--dark-bg);
    color: #CCCCCC;
    padding: 60px 40px 30px;
    margin-top: 80px;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 40px;
}

.footer-about h3 {
    color: white;
    font-size: 18px;
    margin-bottom: 15px;
    font-weight: 700;
}

.footer-about p {
    font-size: 13px;
    line-height: 1.7;
    color: #999999;
}

.footer-links h4 {
    color: white;
    font-size: 14px;
    margin-bottom: 15px;
    font-weight: 600;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: #CCCCCC;
    text-decoration: none;
    font-size: 12px;
    transition: color 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.footer-links a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    color: #666666;
    font-size: 12px;
}

/* 产品详情页特殊样式 */
.product-detail-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 40px 60px;
}

.product-detail-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.product-gallery {
    position: relative;
}

.main-image-container {
    width: 100%;
    height: 500px;
    border-radius: 8px;
    overflow: hidden;
    background: var(--secondary-bg);
    margin-bottom: 15px;
}

.main-product-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    cursor: zoom-in;
}

.thumbnail-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.thumbnail {
    width: 100%;
    height: 110px;
    object-fit: cover;
    border-radius: 6px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateZ(0);
}

.thumbnail:hover {
    border-color: var(--accent-primary);
    opacity: 0.8;
    transform: scale(1.05) translateZ(0);
}

.thumbnail.active {
    border-color: var(--accent-primary);
}

.product-detail-info h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.product-detail-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
}

.product-detail-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 30px;
}

.product-detail-features {
    background: var(--secondary-bg);
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 25px;
}

.product-detail-features h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 15px;
}

.product-detail-features ul {
    list-style: none;
}

.product-detail-features li {
    font-size: 13px;
    color: var(--text-secondary);
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
}

.product-detail-features li::before {
    content: '●';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
}

/* 参数表格 */
.params-table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
}

.params-table th,
.params-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 13px;
}

.params-table th {
    background: var(--secondary-bg);
    font-weight: 600;
    color: var(--text-primary);
}

.params-table td {
    color: var(--text-secondary);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-container,
    .contact-container,
    .product-detail-header {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-container {
        grid-template-columns: 1fr 1fr;
    }

    .products-grid,
    .cases-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .section {
        padding: 50px 20px;
    }

    .nav-container {
        padding: 0 20px;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .hero-content h1 {
        font-size: 32px;
    }

    .section-title {
        font-size: 26px;
    }

    .features-grid,
    .products-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }

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

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .product-filter {
        gap: 10px;
    }

    .filter-btn {
        padding: 8px 16px;
        font-size: 12px;
    }

    .main-image-container {
        height: 350px;
    }

    .thumbnail-container {
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
    }

    .thumbnail {
        height: 70px;
    }
}

/* 加载动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px) translateZ(0);
    }
    to {
        opacity: 1;
        transform: translateY(0) translateZ(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    transform: translateZ(0);
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--secondary-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}