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

body {
    font-family: 'Microsoft YaHei', sans-serif;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    box-shadow: none;
    transition: background-color 0.4s ease, box-shadow 0.4s ease;
}

.header.scrolled {
    background-color: #2ECC71 !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.header.scrolled .nav ul li a {
    color: #ffffff !important;
}

.header.scrolled .search-btn {
    color: #ffffff !important;
}

.header.scrolled .phone-link {
    color: #ffffff !important;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 75px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo img {
    height: 45px;
    width: auto;
}

.nav ul {
    display: flex;
    list-style: none;
}

.nav ul li {
    margin-left: 35px;
    position: relative;
    padding: 8px 0;
}

.nav ul li a {
    text-decoration: none;
    color: #fff;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    letter-spacing: 1px;
}

.nav ul li a:hover,
.nav ul li a.active {
    color: #2ECC71;
}

.nav ul li a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #2ECC71, #27AE60);
    border-radius: 1px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.search-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: #fff;
    transition: all 0.3s ease;
}

.search-btn:hover {
    color: #2ECC71;
    transform: scale(1.1);
}

.search-btn svg {
    width: 20px;
    height: 20px;
}

.phone-link {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.3s ease;
}

.phone-link:hover {
    color: #2ECC71;
}

.phone-link svg {
    width: 18px;
    height: 18px;
    color: #2ECC71;
}

.hero {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.5) 50%, rgba(0, 0, 0, 0.6) 100%), 
                url('../images/index/banner.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 180px 0 140px;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 52px;
    margin-bottom: 25px;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: 2px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: 24px;
    margin-bottom: 18px;
    opacity: 0.92;
    font-weight: 400;
    letter-spacing: 1px;
}

.hero-subtitle {
    font-size: 18px !important;
    margin-bottom: 35px !important;
    opacity: 0.7 !important;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-promotion {
    margin-bottom: 30px;
    text-align: center;
}

.promo-text {
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 2px;
}

.product-tags {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.product-tags span {
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 25px;
    font-size: 13px;
    opacity: 0.85;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
}

.product-tags span:hover {
    background: rgba(46, 204, 113, 0.2);
    border-color: rgba(46, 204, 113, 0.4);
    transform: translateY(-2px);
}

.hero-buttons {
    margin-bottom: 70px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.btn {
    padding: 16px 40px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    letter-spacing: 1px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, #2ECC71 0%, #27AE60 100%);
    color: #fff;
    box-shadow: 0 4px 15px rgba(46, 204, 113, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(46, 204, 113, 0.5);
    background: linear-gradient(135deg, #27AE60 0%, #1E8449 100%);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 80px;
    flex-wrap: wrap;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 50px 30px;
    margin-top: 50px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.stat-item {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 30px;
    position: relative;
}

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
}

.stat-icon {
    width: 28px;
    height: 28px;
    color: #2ECC71;
    margin-bottom: 12px;
    filter: drop-shadow(0 0 8px rgba(46, 204, 113, 0.5));
}

.stat-icon svg {
    width: 100%;
    height: 100%;
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: #2ECC71;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.7;
}

.about {
    padding: 100px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(46, 204, 113, 0.2), transparent);
}

.about h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 80px;
    color: #2c3e50;
    font-weight: 600;
    letter-spacing: 2px;
    position: relative;
}

.about h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #2ECC71, #27AE60);
    border-radius: 2px;
}

.about-content {
    display: flex;
    gap: 60px;
    align-items: center;
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #2c3e50;
    font-weight: 600;
}

.about-text p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 16px;
    text-align: justify;
}

.about-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.about-main-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.about-main-image img {
    width: 100%;
    height: 280px;
    object-fit: cover;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.product-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.product-item:hover {
    transform: translateY(-3px);
}

.product-item img {
    width: 100%;
    height: 100px;
    object-fit: cover;
}

.product-item span {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    padding: 6px 10px;
    font-size: 12px;
    text-align: center;
}

.factory {
    padding: 100px 0;
    background: #f5f5f5;
}

.factory h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #2c3e50;
    font-weight: 600;
    letter-spacing: 2px;
    position: relative;
}

.factory h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #2ECC71, #27AE60);
    border-radius: 2px;
}

.factory-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.factory-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    display: block;
    text-decoration: none;
    color: inherit;
}

.factory-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.factory-item span {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 12px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    font-size: 14px;
    text-align: center;
}

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

.article-section .container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.article-item {
    padding: 30px;
    background: #fafafa;
    border-radius: 12px;
}

.article-item h3 {
    font-size: 20px;
    margin-bottom: 16px;
    color: #2c3e50;
    font-weight: 600;
}

.article-item p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 12px;
    text-align: justify;
}

.video-section {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), 
                url('https://www.hongyun368.com/uploadfile/2021/0526/20210526094015864.jpg');
    background-size: cover;
    background-position: center;
    padding: 100px 0;
    color: #fff;
}

.video-section .container {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
}

.video-content {
    text-align: center;
    margin-bottom: 40px;
}

.video-content h2 {
    font-size: 28px;
    margin-bottom: 20px;
}

.video-content p {
    margin-bottom: 30px;
    opacity: 0.8;
}

.video-placeholder {
    width: 400px;
    height: 250px;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 10px;
}

.play-btn {
    width: 80px;
    height: 80px;
    background-color: #2ECC71;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    transition: transform 0.3s;
}

.play-btn:hover {
    transform: scale(1.1);
}

.products {
    padding: 80px 0;
}

.products h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
    color: #333;
}

.product-categories {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.category-btn {
    padding: 10px 25px;
    border: 1px solid #ddd;
    background-color: #fff;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s;
}

.category-btn.active,
.category-btn:hover {
    background-color: #2ECC71;
    color: #fff;
    border-color: #2ECC71;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.product-item {
    text-align: center;
    border: 1px solid #eee;
    padding: 20px;
    border-radius: 10px;
    transition: box-shadow 0.3s;
    display: block;
    text-decoration: none;
    color: inherit;
}

.product-item:hover {
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.product-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 5px;
    margin-bottom: 15px;
}

.product-item h3 {
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
}

.product-item p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}

.more-product {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 280px;
    background: #fafafa;
    border-radius: 10px;
}

.more-product .more-text h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 5px;
}

.more-product .more-text p {
    font-size: 16px;
    color: #666;
    margin-bottom: 20px;
}

.btn-more {
    padding: 10px 40px;
    border: 1px solid #2ECC71;
    background: transparent;
    color: #2ECC71;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.btn-more:hover {
    background: #2ECC71;
    color: #fff;
}

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

.contact h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 60px;
    color: #333;
}

.contact-content {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
}

.contact-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px 15px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    min-width: 200px;
    max-width: 220px;
    transition: transform 0.3s ease;
}

.contact-info:hover {
    transform: translateY(-3px);
}

.contact-info h3,
.contact-form h3 {
    font-size: 16px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: #2ECC71;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.contact-icon svg {
    width: 22px;
    height: 22px;
}

.contact-item span:last-child {
    font-size: 13px;
    color: #666;
    line-height: 1.4;
}

.contact-form form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input,
.contact-form textarea {
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    width: 100%;
}

.contact-form textarea {
    height: 120px;
}

.cooperation-section {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.cooperation-intro {
    text-align: center;
    margin-bottom: 50px;
}

.cooperation-intro h2 {
    font-size: 32px;
    color: #333;
    margin-bottom: 15px;
}

.cooperation-intro p {
    font-size: 16px;
    color: #666;
}

.cooperation-image {
    margin-bottom: 50px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.cooperation-image img {
    width: 100%;
    height: auto;
    display: block;
}

.cooperation-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.cooperation-card {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.cooperation-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #2ECC71, #27AE60);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 32px;
}

.cooperation-card h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 15px;
}

.cooperation-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

.cooperation-modes {
    margin-bottom: 50px;
}

.cooperation-modes h2 {
    text-align: center;
    font-size: 32px;
    color: #333;
    margin-bottom: 40px;
}

.modes-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.mode-item {
    background: #fff;
    border-radius: 12px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease;
}

.mode-item:hover {
    transform: translateY(-3px);
}

.mode-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    background: #f0f0f0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2ECC71;
    font-size: 24px;
}

.mode-item h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
}

.mode-item p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}

.cooperation-contact {
    text-align: center;
    padding: 40px;
    background: linear-gradient(135deg, #2ECC71, #27AE60);
    border-radius: 12px;
    color: #fff;
}

.cooperation-contact h2 {
    font-size: 28px;
    margin-bottom: 15px;
}

.cooperation-contact p {
    font-size: 16px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.contact-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.contact-buttons .btn {
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.contact-buttons .btn-primary {
    background: #fff;
    color: #2ECC71;
}

.contact-buttons .btn-primary:hover {
    background: #f8f9fa;
}

.contact-buttons .btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.contact-buttons .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
}

@media (max-width: 768px) {
    .cooperation-content {
        grid-template-columns: 1fr;
    }

    .modes-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cooperation-contact {
        padding: 30px 20px;
    }
}

.footer {
    background-color: #333;
    color: #fff;
    padding: 40px 0;
}

.footer-hotline {
    text-align: center;
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-hotline span {
    font-size: 16px;
    color: #999;
}

.footer-hotline .hotline-number {
    font-size: 24px;
    color: #2ECC71;
    font-weight: 700;
    margin-left: 10px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-logo img {
    height: 40px;
}

.footer-links ul {
    display: flex;
    list-style: none;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-links ul li a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
}

.footer-links ul li a:hover {
    color: #2ECC71;
}

.footer-contact .phone {
    color: #2ECC71;
    font-weight: bold;
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: row;
        justify-content: space-between;
        height: 60px;
        padding: 0 15px;
    }
    
    .logo img {
        height: 35px;
    }
    
    .header-right {
        gap: 10px;
    }
    
    .nav {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background-color: #2ECC71;
        z-index: 999;
        display: none;
    }
    
    .nav.active {
        display: block;
    }
    
    .nav ul {
        flex-direction: column;
        margin: 0;
        padding: 10px 0;
    }
    
    .nav ul li {
        margin: 0;
        text-align: center;
        padding: 10px 0;
    }
    
    .nav ul li a {
        font-size: 16px;
        color: #fff;
    }
    
    .nav ul li a:hover,
    .nav ul li a.active {
        color: #fff;
    }
    
    .nav ul li a.active::after {
        display: none;
    }
    
    .menu-btn {
        display: flex;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        padding: 8px;
        z-index: 1001;
    }
    
    .menu-btn span {
        width: 24px;
        height: 2px;
        background-color: #fff;
        transition: all 0.3s ease;
    }
    
    .menu-btn.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-6px, 5px);
    }
    
    .menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-btn.active span:nth-child(3) {
        transform: rotate(45deg) translate(-6px, -5px);
    }
    
    .header.scrolled .menu-btn span {
        background-color: #fff;
    }
    
    .nav ul {
        margin-top: 0;
        flex-direction: column;
        justify-content: flex-start;
    }
    
    .nav ul li {
        margin-left: 0;
        margin-top: 0;
        padding: 12px 20px;
        text-align: left;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav ul li:last-child {
        border-bottom: none;
    }
    
    .nav ul li a {
        font-size: 16px;
        color: #fff;
    }
    
    .header.scrolled .menu-btn span {
        background-color: #fff;
    }
    
    .phone-link span {
        display: none;
    }
    
    .hero {
        padding: 140px 20px 100px;
        background-attachment: scroll;
    }
    
    .hero-content h1 {
        font-size: 32px;
        letter-spacing: 1px;
    }
    
    .hero-content p {
        font-size: 18px;
    }
    
    .hero-subtitle {
        font-size: 14px !important;
        letter-spacing: 1px;
    }

    .hero-highlight {
        padding: 15px 20px;
    }

    .highlight-text {
        font-size: 18px;
    }

    .highlight-badge {
        font-size: 14px;
        padding: 6px 15px;
    }

    .highlight-main {
        font-size: 20px;
        letter-spacing: 2px;
    }

    .highlight-price {
        font-size: 16px;
    }
    
    .product-tags {
        gap: 8px;
    }
    
    .product-tags span {
        padding: 8px 12px;
        font-size: 12px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
    }
    
    .hero-stats {
        gap: 30px;
        padding: 30px 20px;
        margin-top: 30px;
    }
    
    .stat-item {
        padding: 0 15px;
    }
    
    .stat-item:not(:last-child)::after {
        display: none;
    }
    
    .stat-icon {
        width: 24px;
        height: 24px;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    .stat-label {
        font-size: 12px;
    }
    
    .about {
        padding: 60px 0;
    }
    
    .about h2 {
        font-size: 28px;
        margin-bottom: 50px;
    }
    
    .features {
        gap: 15px;
    }
    
    .feature-item {
        width: 150px;
        padding: 20px 15px;
    }
    
    .feature-icon {
        width: 45px;
        height: 45px;
    }
    
    .feature-item h3 {
        font-size: 15px;
    }
    
    .feature-item p {
        font-size: 12px;
    }
    
    .video-section {
        padding: 60px 0;
    }
    
    .video-content h2 {
        font-size: 24px;
    }
    
    .video-placeholder {
        width: 100%;
        max-width: 350px;
        height: 200px;
    }
    
    .play-btn {
        width: 60px;
        height: 60px;
    }
    
    .products {
        padding: 60px 0;
    }
    
    .products h2 {
        font-size: 28px;
    }
    
    .product-categories {
        gap: 10px;
    }
    
    .category-btn {
        padding: 8px 16px;
        font-size: 12px;
    }
    
    .product-grid {
        gap: 20px;
    }
    
    .product-item {
        padding: 15px;
    }
    
    .product-item img {
        height: 150px;
    }
    
    .contact {
        padding: 60px 0;
    }
    
    .contact h2 {
        font-size: 28px;
        margin-bottom: 40px;
    }
    
    .contact-content {
        flex-direction: column;
    }
    
    .contact-info,
    .contact-form {
        width: 100%;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links ul {
        justify-content: center;
        margin: 20px 0;
    }

    .factory {
        padding: 60px 0;
    }

    .factory h2 {
        font-size: 28px;
        margin-bottom: 30px;
    }

    .factory-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .factory-item img {
        height: 120px;
    }

    .factory-item span {
        font-size: 12px;
        padding: 8px;
    }

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

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

    .article-section h3 {
        font-size: 18px;
    }

    .article-section p {
        font-size: 13px;
    }

    .about-content {
        flex-direction: column;
        gap: 30px;
    }

    .about-image img {
        width: 100%;
        height: auto;
    }

    .product-grid {
        grid-template-columns: 1fr !important;
    }
}

.about-banner {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.5) 50%, rgba(0, 0, 0, 0.6) 100%), 
                url('https://www.hongyun368.com/uploadfile/2021/0526/20210526093951989.jpg');
    background-size: cover;
    background-position: center;
    padding: 150px 0 80px;
    color: #fff;
    text-align: center;
}

.about-banner-content h1 {
    font-size: 42px;
    margin-bottom: 15px;
    font-weight: 700;
    letter-spacing: 2px;
}

.about-banner-content p {
    font-size: 18px;
    opacity: 0.85;
    letter-spacing: 1px;
}

.about-section {
    padding: 100px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
}

.about-section .about-content {
    display: flex;
    gap: 60px;
    align-items: center;
}

.about-section .about-text {
    flex: 1;
}

.about-section .about-text h2 {
    font-size: 28px;
    margin-bottom: 25px;
    color: #2c3e50;
    font-weight: 600;
    position: relative;
    padding-bottom: 15px;
}

.about-section .about-text h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #2ECC71, #27AE60);
    border-radius: 2px;
}

.about-section .about-text p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 16px;
    text-align: justify;
}

.about-section .about-highlights {
    display: flex;
    gap: 40px;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid #eee;
}

.about-section .highlight-item {
    text-align: center;
    flex: 1;
}

.about-section .highlight-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: #2ECC71;
    margin-bottom: 8px;
}

.about-section .highlight-label {
    font-size: 14px;
    color: #666;
}

.about-section .about-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.about-section .about-main-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.about-section .about-main-image img {
    width: 100%;
    height: 280px;
    object-fit: cover;
}

.about-section .product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.about-section .product-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.about-section .product-item:hover {
    transform: translateY(-3px);
}

.about-section .product-item img {
    width: 100%;
    height: 100px;
    object-fit: cover;
}

.about-section .product-item span {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    padding: 6px 10px;
    font-size: 12px;
    text-align: center;
}

.factory-section {
    padding: 100px 0;
    background: #f5f5f5;
}

.factory-section h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 60px;
    color: #2c3e50;
    font-weight: 600;
    letter-spacing: 2px;
    position: relative;
}

.factory-section h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #2ECC71, #27AE60);
    border-radius: 2px;
}

.factory-section .factory-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.factory-section .factory-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    display: block;
    text-decoration: none;
    color: inherit;
}

.factory-section .factory-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.factory-section .factory-item:hover img {
    transform: scale(1.1);
}

.factory-section .factory-item span {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 12px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    font-size: 14px;
    text-align: center;
}

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

.culture-section h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 60px;
    color: #2c3e50;
    font-weight: 600;
    letter-spacing: 2px;
    position: relative;
}

.culture-section h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #2ECC71, #27AE60);
    border-radius: 2px;
}

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

.culture-section .culture-item {
    text-align: center;
    padding: 40px 30px;
    background: #fafafa;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.culture-section .culture-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.culture-section .culture-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    color: #2ECC71;
    display: flex;
    align-items: center;
    justify-content: center;
}

.culture-section .culture-icon svg {
    width: 100%;
    height: 100%;
}

.culture-section .culture-item h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #2c3e50;
    font-weight: 600;
}

.culture-section .culture-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .about-banner {
        padding: 120px 20px 60px;
    }

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

    .about-banner-content p {
        font-size: 16px;
    }

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

    .about-section .about-content {
        flex-direction: column;
        gap: 30px;
    }

    .about-section .about-text h2 {
        font-size: 24px;
    }

    .about-section .about-highlights {
        flex-direction: column;
        gap: 20px;
    }

    .about-section .about-image img {
        height: 250px;
    }

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

    .factory-section h2 {
        font-size: 28px;
    }

    .factory-section .factory-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .factory-section .factory-item img {
        height: 150px;
    }

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

    .culture-section h2 {
        font-size: 28px;
    }

    .culture-section .culture-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .culture-section .culture-item {
        padding: 30px 20px;
    }
}

.product-banner, .case-banner, .news-banner, .contact-banner {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.5) 50%, rgba(0, 0, 0, 0.6) 100%), 
                url('https://www.hongyun368.com/uploadfile/2021/0526/20210526093951989.jpg');
    background-size: cover;
    background-position: center;
    padding: 150px 0 80px;
    color: #fff;
    text-align: center;
}

.product-banner-content h1, .case-banner-content h1, .news-banner-content h1, .contact-banner-content h1 {
    font-size: 42px;
    margin-bottom: 15px;
    font-weight: 700;
    letter-spacing: 2px;
}

.product-banner-content p, .case-banner-content p, .news-banner-content p, .contact-banner-content p {
    font-size: 18px;
    opacity: 0.85;
    letter-spacing: 1px;
}

.product-section {
    padding: 80px 0;
    background: #f5f5f5;
}

.product-categories {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.category-btn {
    padding: 10px 25px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    color: #666;
}

.category-btn:hover, .category-btn.active {
    background: #2ECC71;
    border-color: #2ECC71;
    color: #fff;
}

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

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

.product-card:hover {
    transform: translateY(-5px);
}

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

.product-info {
    padding: 20px;
}

.product-info h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.product-info p {
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.page-btn {
    padding: 10px 20px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    color: #666;
}

.page-btn:hover, .page-btn.active {
    background: #2ECC71;
    border-color: #2ECC71;
    color: #fff;
}

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

.case-categories {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
    justify-content: center;
    flex-wrap: wrap;
}

.case-category-btn {
    padding: 10px 25px;
    background: #f5f5f5;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    color: #666;
}

.case-category-btn:hover, .case-category-btn.active {
    background: #2ECC71;
    color: #fff;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.case-card {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
}

.case-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    cursor: pointer;
}

.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.lightbox-overlay.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    max-width: 95vw;
    max-height: 95vh;
    position: relative;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 95vh;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.3);
}

.lightbox-prev {
    left: -50px;
}

.lightbox-next {
    right: -50px;
}

.case-overlay {
    position: absolute;
    top: 10px;
    left: 10px;
}

.case-category {
    background: rgba(46, 204, 113, 0.9);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    color: #fff;
}

.case-info {
    padding: 20px;
}

.case-info h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.case-info p {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
}

.news-section {
    padding: 80px 0;
    background: #f5f5f5;
}

.news-section .container {
    display: flex;
    gap: 40px;
}

.news-sidebar {
    width: 250px;
    flex-shrink: 0;
}

.sidebar-title {
    font-size: 16px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #2ECC71;
}

.sidebar-list {
    list-style: none;
    margin-bottom: 30px;
}

.sidebar-list li {
    margin-bottom: 10px;
}

.sidebar-list li a {
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.sidebar-list li:hover a, .sidebar-list li.active a {
    color: #2ECC71;
}

.news-content {
    flex: 1;
}

.news-card {
    display: flex;
    gap: 20px;
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.news-card:hover {
    transform: translateY(-3px);
}

.news-image img {
    width: 200px;
    height: 120px;
    object-fit: cover;
    border-radius: 8px;
}

.news-info h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.news-info h3 a {
    color: #2c3e50;
    text-decoration: none;
    transition: color 0.3s ease;
}

.news-info h3 a:hover {
    color: #2ECC71;
}

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

.news-meta {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: #999;
}

.news-category {
    background: #f0f0f0;
    padding: 3px 10px;
    border-radius: 10px;
}

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

.contact-section .container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.contact-section h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 60px;
    color: #333;
}

.contact-info-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    max-width: 900px;
    width: 100%;
}

.contact-info-card {
    display: flex;
    gap: 15px;
    padding: 25px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.contact-info-card:hover {
    transform: translateY(-3px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: #2ECC71;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-text h3 {
    font-size: 16px;
    margin-bottom: 5px;
    color: #2c3e50;
}

.contact-text p {
    font-size: 14px;
    color: #666;
    margin-bottom: 3px;
}

.contact-form-section h2 {
    font-size: 24px;
    margin-bottom: 30px;
    color: #2c3e50;
}

.contact-form {
    background: #f9f9f9;
    padding: 30px;
    border-radius: 12px;
}

.form-row {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.form-row input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
}

.contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    resize: none;
    margin-bottom: 20px;
}

.map-section {
    padding: 80px 0;
    background: #f5f5f5;
}

.map-section h2 {
    text-align: center;
    font-size: 24px;
    margin-bottom: 30px;
    color: #2c3e50;
}

.map-container {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.map-container img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

@media (max-width: 768px) {
    .product-banner, .case-banner, .news-banner, .contact-banner {
        padding: 120px 20px 60px;
    }

    .product-banner-content h1, .case-banner-content h1, .news-banner-content h1, .contact-banner-content h1 {
        font-size: 32px;
    }

    .product-grid, .case-grid {
        grid-template-columns: 1fr;
    }

    .news-section .container {
        flex-direction: column;
    }

    .news-sidebar {
        width: 100%;
    }

    .news-card {
        flex-direction: column;
    }

    .news-image img {
        width: 100%;
        height: 180px;
    }

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

    .contact-info-section {
        grid-template-columns: 1fr;
    }

    .form-row {
        flex-direction: column;
    }

    .category-btn, .case-category-btn {
        padding: 8px 18px;
        font-size: 13px;
    }

    .product-banner-content h1, 
    .case-banner-content h1, 
    .news-banner-content h1, 
    .contact-banner-content h1 {
        font-size: 32px;
    }

    .product-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .product-item {
        padding: 15px;
    }

    .product-item img {
        height: 150px;
    }

    .case-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .case-card img {
        height: 150px;
    }

    .cooperation-section {
        padding: 40px 0;
    }

    .cooperation-intro h2 {
        font-size: 24px;
    }

    .cooperation-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .cooperation-card {
        padding: 20px;
    }

    .modes-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .mode-item {
        padding: 20px 15px;
    }

    .cooperation-contact {
        padding: 30px 20px;
    }

    .contact-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .contact-buttons .btn {
        width: 100%;
        max-width: 200px;
    }
}