/* ========================================
   HOLLERK - CNHAWE Style Replica
   ======================================== */


/* Reset & Base */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    width: 80%;
    margin: 0 10%;
    padding: 0 20px;
}


/* ========================================
   Top Bar
   ======================================== */

.top-bar {
    background-color: #1a1a1a;
    color: #fff;
    padding: 12px 0;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 0;
    width: 80%;
    margin: 0 10%;
}

.top-bar-left .highlight {
    color: #4a9eff;
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.top-bar-right {
    font-size: 14px;
    color: #ccc;
}


/* ========================================
   Full Screen Image
   ======================================== */

.full-screen-image {
    width: 100%;
    height: 100vh;
    overflow: hidden;
    position: relative;
}

.full-screen-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}


/* ========================================
   Header
   ======================================== */

.site-header {
    background-color: #000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

#header-placeholder {
    height: 80px;
    /* 与header高度一致，避免内容被遮挡 */
}

.header-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    width: 80%;
    max-width: 80%;
    margin: 0 10%;
}

.logo a {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 2px;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-menu a {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #fff;
    position: relative;
    padding: 5px 0;
    transition: color 0.3s ease, transform 0.3s ease;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #1E3A8A;
    transition: width 0.3s ease;
}

.nav-menu a:hover {
    color: #60A5FA;
    transform: translateY(-2px);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-menu a.active {
    color: #60A5FA;
    font-weight: 700;
}

.nav-menu a.active::after {
    width: 100%;
}


/* 下拉菜单样式 */

.nav-menu .dropdown {
    position: relative;
}

.nav-menu .dropdown>a i {
    font-size: 12px;
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.nav-menu .dropdown:hover>a i {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #1a1a1a;
    min-width: 180px;
    padding: 10px 0;
    border-radius: 4px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

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

.dropdown-menu li {
    display: block;
}

.dropdown-menu a {
    display: block;
    padding: 10px 20px;
    font-size: 13px;
    color: #fff;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.dropdown-menu a:hover {
    background-color: #1E3A8A;
    color: #000;
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.language-toggle {
    background: none;
    border: 1px solid #fff;
    color: #fff;
    padding: 8px 15px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.language-toggle:hover {
    background-color: #1E3A8A;
    border-color: #1E3A8A;
    color: #000;
}

.btn {
    display: inline-block;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 4px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    float: right;
}

.btn-primary {
    background-color: #1E3A8A;
    color: #fff;
}

.btn-primary:hover {
    background-color: #1E40AF;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: #1E3A8A;
    border: 2px solid #1E3A8A;
}

.btn-secondary:hover {
    background-color: #1E3A8A;
    color: #000;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #fff;
    transition: all 0.3s ease;
}


/* ========================================
   Hero Banner
   ======================================== */

.hero-banner {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.hero-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 24px;
    font-weight: 600;
    color: #1E3A8A;
    margin-bottom: 20px;
    line-height: 1.4;
}

.hero-description {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
}

.hero-media img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}


/* ========================================
   Stats Bar
   ======================================== */

.stats-bar {
    background-color: #1a1a1a;
    padding: 60px 0;
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-box {
    text-align: center;
    color: #fff;
}

.stat-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-text {
    font-size: 14px;
    color: #999;
    margin-bottom: 15px;
    line-height: 1.5;
    min-height: 60px;
}

.stat-number-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-num {
    font-size: 48px;
    font-weight: 700;
    color: #1E3A8A;
}

.stat-plus {
    font-size: 48px;
    font-weight: 700;
    color: #1E3A8A;
    margin-left: 5px;
}


/* ========================================
   Products Section
   ======================================== */

.products-section {
    padding: 80px 0;
    background-color: #fff;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    font-weight: 700;
    color: #1a1a1a;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: #1E3A8A;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.product-card {
    background-color: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.product-card-inner {
    padding: 30px;
}

.product-name {
    font-size: 22px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 20px;
}

.product-image {
    margin-bottom: 20px;
    border-radius: 6px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 200px;
}


/* ========================================
   Why Choose Section
   ======================================== */

.why-choose-section {
    padding: 80px 0;
    background-color: #fff;
}

.advantages-content {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.advantage-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.advantage-text {
    padding-right: 20px;
}

.advantage-text h3 {
    font-size: 24px;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
}

.advantage-subtitle {
    font-size: 16px;
    color: #666;
    font-weight: 600;
    margin-bottom: 20px;
}

.advantage-text p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
}

.advantage-link {
    font-size: 14px;
    color: #333;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.3s ease;
}

.advantage-link:hover {
    color: #1E3A8A;
}

.advantage-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.advantage-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .advantage-item {
        grid-template-columns: 1fr;
    }
    
    .advantage-text {
        padding-right: 0;
        order: 2;
    }
    
    .advantage-image {
        order: 1;
    }
}

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

.product-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 20px;
}

.sub-products {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.sub-product-link {
    display: inline-block;
    padding: 8px 16px;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 13px;
    color: #333;
    transition: all 0.3s ease;
}

.sub-product-link:hover {
    background-color: #1E3A8A;
    color: #000;
    border-color: #1E3A8A;
}


/* ========================================
   Series Section
   ========================================
   Format: Two rows with three items each
   Hover effect: Vertical expansion to show details
   ======================================== */

.series-section {
    padding: 100px 0;
    background-color: #f8f9fa;
}

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

.series-item {
    background-color: #fff;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    overflow: hidden;
    height: 150px;
}

.series-item:hover {
    height: auto;
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.series-icon {
    width: 50px;
    height: 50px;
    background-color: #1E3A8A;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.series-icon i {
    font-size: 24px;
    color: #fff;
}

.series-item h3 {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 10px;
}

.series-brief {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

.series-details {
    margin-top: 20px;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.series-item:hover .series-details {
    opacity: 1;
    max-height: 500px;
}

.series-details p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

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

.series-details li {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 5px;
    position: relative;
    padding-left: 20px;
}

.series-details li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #1E3A8A;
    font-weight: bold;
}

.series-btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: #1E3A8A;
    color: #000;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.series-btn:hover {
    background-color: #1E40AF;
    transform: translateY(-2px);
}

@media (max-width: 992px) {
    .series-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .series-section {
        padding: 60px 0;
    }
    .series-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .series-item {
        height: auto;
    }
    .series-details {
        opacity: 1;
        max-height: none;
    }
}


/* ========================================
   Partners Section
   ======================================== */

.partners-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 15px;
}

.section-header p {
    font-size: 16px;
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

.partners-scroll-container {
    position: relative;
    overflow: hidden;
    padding: 20px 0;
}

.partners-logos {
    display: flex;
    align-items: center;
    gap: 40px;
    animation: scroll 30s linear infinite;
    width: max-content;
}

.partners-scroll-container:hover .partners-logos {
    animation-play-state: paused;
}

.partner-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.3s ease;
    min-width: 220px;
    width: 220px;
}

.partner-item:hover {
    transform: translateY(-10px);
}

.partner-item img {
    width: 100%;
    height: 100px;
    object-fit: cover;
    background-color: #fff;
    padding: 10px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 10px;
    transition: all 0.3s ease;
}

.partner-item:hover img {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.partner-item span {
    font-size: 14px;
    font-weight: 600;
    color: #666;
    text-align: center;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}


/* Responsive Design */

@media (max-width: 768px) {
    .partners-section {
        padding: 60px 0;
    }
    .partner-item img {
        width: 150px;
        height: 60px;
    }
    .partners-logos {
        gap: 30px;
    }
}


/* ========================================
   Product Detail Section
   ======================================== */

.product-detail {
    padding: 60px 0;
    background-color: #fff;
}

.product-content {
    display: grid;
    grid-template-columns: 3fr 4fr;
    gap: 40px;
    margin-bottom: 60px;
    align-items: start;
}

.product-image-section {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.main-image {
    width: 100%;
    height: 400px;
    margin-bottom: 20px;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.thumbnail-images {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 10px;
}

.thumbnail {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.thumbnail:hover {
    border-color: #1E3A8A;
    transform: scale(1.05);
}

.product-text-section {
    padding: 20px;
}

#product-title {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 20px;
    line-height: 1.2;
}

#product-description {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 30px;
}

.product-features {
    margin-bottom: 30px;
}

.product-features h2 {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
}

#product-features {
    list-style: none;
    padding: 0;
}

#product-features li {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
    position: relative;
    padding-left: 20px;
}

#product-features li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #1E3A8A;
    font-weight: bold;
}

.product-specs {
    margin-bottom: 40px;
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.product-specs h2 {
    font-size: 24px;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
    text-align: center;
}

.specs-table table {
    width: 100%;
    border-collapse: collapse;
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.specs-table th,
.specs-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.specs-table th {
    background-color: #f2f2f2;
    font-weight: 600;
    color: #333;
}

.specs-table tr:hover {
    background-color: #f9f9f9;
}

.product-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 40px;
}

.product-actions .btn {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 4px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    float: right;
}

.product-actions .btn {
    width: auto;
    background-color: #1E3A8A;
    color: #000;
    border: 2px solid #1E3A8A;
}

.product-actions .btn:hover {
    background-color: #1E40AF;
    transform: translateY(-2px);
}

@media (max-width: 992px) {
    .product-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .product-image-section {
        order: 1;
    }
    .product-text-section {
        order: 2;
    }
    #product-title {
        font-size: 28px;
        text-align: center;
    }
    #product-description {
        text-align: center;
    }
    .product-features {
        text-align: center;
    }
    #product-features li {
        text-align: left;
    }
    .product-actions {
        flex-direction: column;
        align-items: center;
    }
    .product-actions .btn {
        width: 200px;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .product-detail {
        padding: 40px 0;
    }
    .product-content {
        gap: 30px;
    }
    .product-image-section,
    .product-text-section,
    .product-specs {
        padding: 20px;
    }
    #product-title {
        font-size: 24px;
    }
    .product-specs h2 {
        font-size: 20px;
    }
    .specs-table th,
    .specs-table td {
        padding: 10px;
        font-size: 14px;
    }
}


/* ========================================
   News-style Products Section
   ======================================== */

.news-style-products {
    padding: 60px 0;
    overflow: visible !important;
    padding-bottom: 80px;
}

.news-grid-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: flex-start;
    grid-auto-flow: row;
    min-height: auto;
    height: auto;
}

/* Columns */
.news-column {
    display: flex;
    flex-direction: column;
    gap: 30px;
    align-items: stretch;
    justify-content: flex-start;
    min-height: 100%;
}

.news-column-right {
    margin-top: 200px;
}

/* News Card Base Styles */
.news-style-products .news-card {
    overflow: visible !important;
    transition: all 0.3s ease;
    background-color: transparent !important;
    border-radius: 0 !important;
    box-shadow: none !important;
}

/* Text Header Card (Top-left) */
.news-card.text-header {
    background-color: #f5f5f5;
    padding: 50px 40px;
}

.news-card.text-header .news-category {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    color: #e74c3c;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.news-card.text-header h2 {
    font-size: 42px;
    font-weight: 700;
    color: #1a1a1a;
    line-height: 1.2;
    margin-bottom: 15px;
}

.news-card.text-header p {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
}

/* Image + Text Card */
.news-card.image-top-card {
    background-color: #fff;
    display: flex;
    flex-direction: column;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    min-height: auto !important;
    height: auto !important;
    position: relative;
    overflow: visible !important;
}

.news-card.image-top-card .card-image {
    width: 100%;
    overflow: hidden;
    flex-shrink: 0;
    height: 200px;
}

.news-card.image-top-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card.image-top-card:hover .card-image img {
    transform: scale(1.05);
}

.news-card.image-top-card .card-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-height: auto !important;
    height: auto !important;
    overflow: visible !important;
}

.news-card.image-top-card .card-content h3 {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 10px;
    line-height: 1.3;
}

.news-card.image-top-card .card-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
    flex-grow: 1;
}

.news-card.image-top-card .card-content .card-link {
    display: inline-flex;
    align-items: center;
    font-size: 13px;
    font-weight: 600;
    color: #e74c3c;
    text-decoration: none;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.news-card.image-top-card .card-content .card-link:hover {
    color: #c0392b;
}

/* Image-only Card */
.news-card.image-card {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.news-card.image-card .card-image-wide {
    width: 100%;
    overflow: hidden;
    height: 250px;
}

.news-card.image-card .card-image-wide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card.image-card:hover .card-image-wide img {
    transform: scale(1.05);
}

/* Responsive Design for News-style Products */
@media (max-width: 1200px) {
    .news-grid-layout {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .news-column-right {
        margin-top: 0;
    }
    
    .news-card.text-header {
        padding: 40px 30px;
    }
    
    .news-card.text-header h2 {
        font-size: 32px;
    }
    
    .news-card.image-top-card .card-image img {
        height: 220px;
    }
}

@media (max-width: 768px) {
    .news-style-products {
        padding: 40px 0;
    }
    
    .news-grid-layout {
        gap: 20px;
    }
    
    .news-card.text-header {
        padding: 30px 25px;
    }
    
    .news-card.text-header h2 {
        font-size: 26px;
    }
    
    .news-card.image-top-card .card-image img {
        height: 180px;
    }
    
    .news-card.image-top-card .card-content {
        padding: 20px;
    }
    
    .news-card.image-top-card .card-content h3 {
        font-size: 18px;
    }
    
    .news-card.image-card .card-image-wide img {
        height: 160px;
    }
}

/* ========================================
   More Products Section
   ======================================== */

.more-products-section {
    padding: 80px 0;
    background-color: #fff;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    align-items: stretch;
}

.product-item {
    background-color: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.product-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.product-item h3 {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
    margin: 20px;
    text-align: center;
    flex-grow: 1;
}

.product-link {
    display: block;
    text-align: center;
    padding: 10px 0;
    color: #1E3A8A;
    font-size: 14px;
    transition: all 0.3s ease;
    position: relative;
}

.product-link:hover {
    color: #1E40AF;
}

.product-link i {
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.product-link:hover i {
    transform: translateX(5px);
}


/* More Products Info Section */

.more-products-info {
    background-color: #f8f9fa;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.more-products-info h2 {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 20px;
}

.more-products-info p {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 30px;
}

.connect-btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: #1a1a1a;
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
    align-self: flex-start;
}

.connect-btn:hover {
    background-color: #1E3A8A;
    transform: translateY(-2px);
}


/* Responsive Design */

@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .more-products-info {
        grid-column: 1 / -1;
        flex-direction: row;
        align-items: center;
        text-align: left;
    }
    .more-products-info h2 {
        font-size: 28px;
        margin-right: 40px;
    }
    .more-products-info p {
        flex-grow: 1;
        margin-right: 40px;
    }
}

@media (max-width: 992px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .more-products-info {
        flex-direction: column;
        text-align: center;
        padding: 60px 40px;
    }
    .more-products-info h2 {
        margin-right: 0;
        margin-bottom: 20px;
    }
    .more-products-info p {
        margin-right: 0;
        margin-bottom: 30px;
    }
    .connect-btn {
        align-self: center;
    }
}

@media (max-width: 768px) {
    .more-products-section {
        padding: 60px 0;
    }
    .products-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .more-products-info {
        padding: 40px 20px;
    }
    .more-products-info h2 {
        font-size: 24px;
    }
}


/* ========================================
   Why Choose Section
   ======================================== */

.why-choose-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-box {
    background-color: #fff;
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background-color: #1E3A8A;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.feature-icon i {
    font-size: 28px;
    color: #fff;
}

.feature-box h3 {
    font-size: 20px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 15px;
}

.feature-box p {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
}


/* ========================================
   News Section
   ======================================== */

.news-section {
    padding: 80px 0;
    background-color: #fff;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.news-image {
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.news-content {
    padding: 25px;
}

.news-date {
    font-size: 13px;
    color: #1E3A8A;
    font-weight: 600;
    margin-bottom: 10px;
    display: block;
}

.news-content h3 {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}


/* ========================================
   Contact Section
   ======================================== */

.contact-section {
    padding: 100px 0;
    background-color: #fff;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 40px;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 25px;
    background-color: #f8f9fa;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.info-item:hover {
    transform: translateX(10px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.info-icon {
    width: 60px;
    height: 60px;
    background-color: #1E3A8A;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-icon i {
    font-size: 24px;
    color: #fff;
}

.info-content h3 {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 8px;
}

.info-content p {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 5px;
}

.info-content p:last-child {
    margin-bottom: 0;
}

.contact-form-wrap {
    background-color: #f8f9fa;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.contact-main-form {
    width: 100%;
}

.contact-main-form .form-row {
    margin-bottom: 20px;
}

.contact-main-form input,
.contact-main-form select,
.contact-main-form textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 15px;
    font-family: inherit;
    transition: all 0.3s ease;
    background-color: #fff;
}

.contact-main-form input:focus,
.contact-main-form select:focus,
.contact-main-form textarea:focus {
    outline: none;
    border-color: #1E3A8A;
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

.contact-main-form select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    padding-right: 40px;
}

.contact-main-form textarea {
    resize: vertical;
    min-height: 150px;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.checkbox-row input[type="checkbox"] {
    width: auto;
    margin: 0;
    cursor: pointer;
}

.checkbox-row label {
    font-size: 14px;
    color: #666;
    cursor: pointer;
    margin: 0;
}

.btn-submit-large {
    width: auto;
    background-color: #1E3A8A;
    color: #000;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    float: right;
}

.btn-submit-large:hover {
    background-color: #1E40AF;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
}

.btn-submit-large:active {
    transform: translateY(0);
}

@media (max-width: 1024px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .contact-section {
        padding: 60px 0;
    }
    .contact-form-wrap {
        padding: 30px 20px;
    }
    .info-item {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .info-item {
        flex-direction: column;
        text-align: center;
    }
    .info-icon {
        margin: 0 auto 15px;
    }
}


/* Form Animations */

.contact-main-form input,
.contact-main-form select,
.contact-main-form textarea {
    opacity: 0;
    transform: translateY(10px);
    animation: fadeInUp 0.5s ease forwards;
}

.contact-main-form .form-row:nth-child(1) input {
    animation-delay: 0.1s;
}

.contact-main-form .form-row:nth-child(2) input {
    animation-delay: 0.2s;
}

.contact-main-form .form-row:nth-child(3) input {
    animation-delay: 0.3s;
}

.contact-main-form .form-row:nth-child(4) input {
    animation-delay: 0.4s;
}

.contact-main-form .form-row:nth-child(5) select {
    animation-delay: 0.5s;
}

.contact-main-form .form-row:nth-child(6) textarea {
    animation-delay: 0.6s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* Info Item Animation */

.info-item {
    opacity: 0;
    transform: translateX(-20px);
    animation: slideInLeft 0.5s ease forwards;
}

.info-item:nth-child(1) {
    animation-delay: 0.1s;
}

.info-item:nth-child(2) {
    animation-delay: 0.2s;
}

.info-item:nth-child(3) {
    animation-delay: 0.3s;
}

.info-item:nth-child(4) {
    animation-delay: 0.4s;
}

.info-item:nth-child(5) {
    animation-delay: 0.5s;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}


/* Success Message */

.form-success {
    display: none;
    padding: 20px;
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    border-radius: 4px;
    color: #155724;
    margin-top: 20px;
    animation: fadeIn 0.5s ease;
}

.form-success.show {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}


/* ========================================
   Footer
   ======================================== */

.site-footer {
    background-color: #1a1a1a;
    color: #fff;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
    width: 80%;
    margin: 0 10% 40px;
}

.footer-brand h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 15px;
}

.footer-brand p {
    font-size: 14px;
    color: #999;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #fff;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    font-size: 14px;
    color: #999;
    transition: color 0.3s ease;
}

.footer-col ul li a:hover {
    color: #1E3A8A;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 0 0;
    width: 80%;
    margin: 0 10%;
}

.footer-bottom p {
    font-size: 14px;
    color: #666;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    width: 40px;
    height: 40px;
    background-color: #333;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-icons a:hover {
    background-color: #1E3A8A;
    transform: translateY(-3px);
}

.social-icons i {
    font-size: 16px;
    color: #fff;
}


/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1024px) {
    .hero-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-media {
        order: -1;
    }
    .products-grid {
        grid-template-columns: 1fr;
    }
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .more-products-gallery {
        grid-template-columns: repeat(3, 1fr);
    }
    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: #000;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    }
    .nav-menu.active {
        display: flex;
    }
    .nav-menu a {
        color: #fff;
    }
    /* 移动端下拉菜单样式 */
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background-color: transparent;
        box-shadow: none;
        padding: 0 0 0 20px;
        min-width: auto;
    }
    .dropdown-menu a {
        padding: 8px 15px;
        font-size: 14px;
    }
    .nav-menu .dropdown>a i {
        display: none;
    }
    .mobile-menu-toggle {
        display: flex;
    }
    .header-actions {
        display: none;
    }
    .hero-title {
        font-size: 36px;
    }
    .hero-subtitle {
        font-size: 20px;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .news-grid {
        grid-template-columns: 1fr;
    }
    .more-products-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .footer-links {
        grid-template-columns: 1fr;
    }
    .stats-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .more-products-gallery {
        grid-template-columns: 1fr;
    }
    .section-title h2 {
        font-size: 28px;
    }
    .stat-num,
    .stat-plus {
        font-size: 36px;
    }
}


/* ========================================
   Animations
   ======================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}


/* Scroll animations */

.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0);
}


/* Hero Buttons */

.hero-buttons {
    margin-top: 30px;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 5px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    float: right;
}

.hero-buttons .btn-primary {
    background-color: #1E3A8A;
    color: #fff;
    border: 2px solid #1E3A8A;
}

.hero-buttons .btn-primary:hover {
    background-color: #1E40AF;
    border-color: #1E40AF;
    transform: translateY(-2px);
}

.hero-buttons .btn-secondary {
    background-color: transparent;
    color: #1E3A8A;
    border: 2px solid #1E3A8A;
}

.hero-buttons .btn-secondary:hover {
    background-color: #1E3A8A;
    color: #000;
    transform: translateY(-2px);
}


/* Product CTA */

.product-cta {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.product-cta .btn {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 5px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    background-color: #1E3A8A;
    color: #000;
    border: 2px solid #1E3A8A;
    float: right;
}

.product-cta .btn:hover {
    background-color: #1E40AF;
    border-color: #1E40AF;
    transform: translateY(-2px);
}