:root {
    --hero-primary-color: #73B8D1;
    --hero-secondary-color: #FFFFFF;
    --hero-title-font-size: 3.5rem;
    --hero-subtitle-font-size: 4.5rem;
    --hero-description-font-size: 1rem;
    --hero-letter-spacing: 0.3em;
    --hero-subtitle-letter-spacing: 0.4em;
    --hero-description-letter-spacing: 0.1em;
    --primary-color: #73B8D1;
    --text-color: #333333;
    --text-secondary: #666666;
    --bg-color: #FFFFFF;
    --section-padding: 60px 0;
}

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

html, body {
    height: 100%;
    width: 100%;
    font-family: 'Arial', 'Helvetica', sans-serif;
}

.hero-section {
    width: 100%;
    height: 850px;
    padding-top: 125px;
    background-image: url('../images/1.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.hero-content {
    text-align: left;
    z-index: 2;
    margin-left: 10%;
    margin-bottom: 10rem;
    max-width: 650px;
}

.hero-tag {
    display: inline-block;
    font-family: "DM Serif Text", Sans-serif;
    font-size: 20px;
    font-weight: 600;
    color: #73B8D1;
    letter-spacing: 0.05em;
    margin-bottom: 1.2rem;
}

.hero-title {
    font-family:DMSerifText-Regular, serif;
    font-size: 43px;
    font-weight: 400;
    color: #222222;
    letter-spacing: 0.01rem;
    margin-bottom: 1.8rem;
    line-height: 1.2;
    text-align: left;
}

.hero-features {
    list-style: none;
    padding: 0;
    margin: 0 0 2.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.hero-features li {
    font-family: 'Arial', 'Helvetica', sans-serif;
    font-size: var(--hero-feature-font-size);
    font-weight: 600;
    color:#222222;
    line-height: 1.6;
    padding-left: 28px;
    position: relative;
}

.hero-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    width: 20px;
    height: 20px;
    background: #73B8D1;
    border-radius: 50%;
    color: white;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.hero-video-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--hero-text-color);
    font-family: 'Arial', 'Helvetica', sans-serif;
    font-size: var(--hero-video-font-size);
    font-weight: 500;
    transition: all 0.3s ease;
}

.hero-video-btn:hover {
    color: #73B8D1;
}

.hero-video-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all 0.3s ease;
}

.hero-video-icon::before {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    border-left: 8px solid var(--hero-text-color);
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    margin-left: 3px;
}

.hero-video-btn:hover .hero-video-icon {
    background: rgba(115, 184, 209, 0.3);
    border-color: #73B8D1;
}

.hero-video-btn:hover .hero-video-icon::before {
    border-left-color: #73B8D1;
}

.solutions-section {
    width: 100%;
    background: var(--bg-color);
    padding: var(--section-padding);
}

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

.section-title h2 {
    font-family: DMSerifText-Regular, serif;
    font-size: 2rem;
    font-weight: 400;
    color: var(--text-color);
    letter-spacing: 0.05em;
}

.solutions-main {
    max-width: 1200px;
    width: 90%;
    margin: 0 auto 3rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 80px;
}

.solutions-main-image {
    flex: 0 0 50%;
    max-width: 50%;
}

.solutions-main-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
}

.solutions-main-content {
    flex: 0 0 35%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 40px;
}

.solutions-main-content h2 {
    font-family: DMSerifText-Regular, serif;
    color: var(--text-color);
    letter-spacing: 0.02em;
    font-weight: 400;
}

.btn-learn-more {
    display: inline-block;
    padding: 12px 48px;
    background: #73B8D1;
    color: var(--bg-color);
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: background 0.3s ease;
}


.btn-learn-more:active {
    background: #73B8D1;
    color: #FFFFFF;
}

.carousel-container {
    max-width: 1200px;
    width: 90%;
    margin: 0 auto;
    position: relative;
    display: flex;
    align-items: center;
    gap: 20px;
}

.carousel-prev,
.carousel-next {
    width: 40px;
    height: 40px;
    background: #73B8D1;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: background 0.3s ease;
}

.carousel-prev:hover,
.carousel-next:hover {
    background: #0099B3;
}

.carousel-prev img,
.carousel-next img {
    width: 20px;
    height: 20px;
}

.carousel-prev img {
    transform: rotate(180deg);
}

.carousel-track {
    flex: 1;
    display: flex;
    gap: 2rem;
    
    overflow: hidden;
    scroll-behavior: smooth;
}

.carousel-card {
    flex: 0 0 calc(50% - 20px);
    display: flex;
    align-items: center;
    gap: 20px;
}

.card-image {
    flex: 0 0 55%;
    gap: 1rem;
}

.card-image img {
    width: 100%;
    height: 15rem;
    object-fit: cover;
    display: block;
    border-radius: 8px;
}

.card-content {
    flex: 0 0 40%;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    justify-content: center;
}

.card-content h2 {
    font-family: DMSerifText-Regular, serif;
    font-weight: 500;
    line-height: 1.4;
    color: #333333;
}

.card-link {
    color: #73B8D1;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    border-bottom: 1px solid #73B8D1 ;
    display: inline-block;
    padding-bottom: 2px;
    width: fit-content;
}

.card-link:hover {
    color: #5CA8C3;
    border-bottom-color: #5CA8C3;
    text-decoration: none;
}

.card-link:active {
    color: #73B8D1;
    border-bottom-color: #73B8D1;
}

.products-section {
    width: 100%;
    background: var(--bg-color);
    padding: var(--section-padding);
}


.products-section .section-title h2 {
    font-family: DMSerifText-Regular, serif;
    font-weight: 400;
    color: #333333;
}






.products-grid {
    max-width: 1200px;
    width: 90%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem 1rem;
}

.product-item {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

.product-image {
    width: 380px;
    height: 380px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

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

.product-name {
    font-size: 1.5rem;
    font-weight: 400;
    font-family: DMSerifText-Regular, serif;

    color:var(--text-color);
; /* 默认黑色 */
    letter-spacing: 0.02em;
    text-decoration: none; /* 去掉a标签默认下划线 */
    transition: color 0.3s ease; 
}

.product-name:hover {
  color: #73B8D1;
}

.product-name-highlight {
    color: #73B8D1;
}

.why-choose-section {
    width: 100%;
    background: var(--bg-color);
    padding: var(--section-padding);
    position: relative;
}

.why-choose-container {
    max-width: 1200px;
    width: 90%;
    margin: 0 auto;
    position: relative;
}

.why-choose-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}

.center-circle {
    width: 200px;
    height: 200px;
    background: #73B8D1;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.circle-text {
    font-family: DMSerifText-Regular, serif;
    font-size: 2.5rem;
    font-weight: 400;
    color: #333333;
    line-height: 1.4;
}

.why-choose-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 60px;
    position: relative;
}

.why-choose-grid::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: #E0E0E0;
    transform: translateY(-50%);
    z-index: 1;
}

.why-choose-grid::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 1px;
    background: #E0E0E0;
    transform: translateX(-50%);
    z-index: 1;
}

.why-choose-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 15px;
    padding: 20px;
    position: relative;
    z-index: 2;
}

.item-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.item-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.why-choose-item h4 {
    font-family: DMSerifText-Regular, serif;
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-color);
    letter-spacing: 0.02em;
}

.why-choose-item p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 10px;
}

.manufacturing-section {
    width: 100%;
    background: var(--bg-color);
    padding: var(--section-padding);
}

.manufacturing-container {
    max-width: 1200px;
    width: 90%;
    margin: 0 auto;
}

.manufacturing-title {
    font-weight: 400;
    font-family: DMSerifText-Regular, serif;
    text-align: center;
    font-size: 2rem;
    
    color: var(--text-color);
    letter-spacing: 0.05em;
    margin-bottom: 40px;
}

.manufacturing-carousel {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0 auto 40px;
    margin-bottom: 40px;
    width: 100%;
    max-width: 1200px;
}

.manufacturing-prev,
.manufacturing-next {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: background 0.3s ease;
}

.manufacturing-prev:hover,
.manufacturing-next:hover {
    background: #0099B3;
}

.manufacturing-prev img,
.manufacturing-next img {
    width: 20px;
    height: 20px;
}

.manufacturing-prev img {
    transform: rotate(180deg);
}

.manufacturing-track {
    flex: 1;
    display: flex;
    gap: 20px;
    margin: 0 1rem;
    overflow: hidden;
    scroll-behavior: smooth;
}

.manufacturing-card {
    flex: 0 0 calc(33.333% - 14px);
    
}

.manufacturing-image {
    width: 100%;
    overflow: hidden;
    margin: 0;
}

.manufacturing-image img {
    width: 100%;
    height: 15rem;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

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

.manufacturing-stats {
    display: flex;
    justify-content: center;
    gap: 6rem;
    padding-top: 40px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.stat-number {
    font-size: 3rem;
    font-weight: 400;
    color: #73B8D1;
    letter-spacing: 0.02em;
}

.stat-label {
    font-size: 1rem;
    color: #666666;
    letter-spacing: 0.02em;
    text-align: center;
    font-weight: 500;
}

.stat-sub-label {
    font-size: 0.75rem;
    color: #999999;
    letter-spacing: 0.02em;
    text-align: center;
}

.quality-section {
    width: 100%;
    background: #FFFFFF;
    padding: 0 0 180px 0;
}

.quality-container {
    max-width: 1200px;
    width: 90%;
    margin: 0 auto;
    display: flex;
    gap: 30px;
}

.quality-title {
    font-family: DMSerifText-Regular, serif;
    text-align: center;
    font-size: 32px;
    font-weight: 400;
    color: #333333;
    letter-spacing: 0.05em;
    margin: 0 auto 40px auto;
    display: block;
}

.quality-card {
    flex: 1;
    position: relative;
    border-radius: 8px;
    display: block;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background: #FFFFFF;
}

.quality-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.quality-card-image {
    width: 100%;
    overflow: hidden;
}

.quality-card-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

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

.quality-card-content {
    position: absolute;
    width: 30rem;
    height: 9rem;
    bottom: -6rem;
    left: 3.25rem;
    right: 1.25rem;
    padding: 1.25rem 1.5rem;
    background: #FFFFFF;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    z-index: 2;
}

.quality-card-text {
    flex: 1;
}

.quality-card-title {
    font-family: DMSerifText-Regular, serif;
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-color);
    margin: 0 0 6px 0;
    line-height: 1.3;
}

.quality-card-desc {
    font-size: 1.1rem;
    font-weight: 400;
    color: #666666;
    line-height: 1.5;
    margin: 0;
}

.quality-card-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    margin-left: 16px;
    border-radius: 50%;
    background: #73B8D1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
}

.quality-card:hover .quality-card-icon {
    background: #5CA8C3;
}

.quality-card-icon img {
    width: 18px;
    height: 18px;
}

.success-stories-section {
    width: 100%;
    background: #F8F9FA;
    padding: var(--section-padding);
}

.success-stories-container {
    max-width: 1200px;
    width: 90%;
    margin: 0 auto;
    
}

.success-stories-title {
    font-family: DMSerifText-Regular, serif;
    color: #333333;
    font-weight: 400;
    font-size: 2rem;
    text-align: center;
    margin: 0 0 2rem 0;
    
}

.clients-section {
    width: 100%;
    background: var(--bg-color);
    padding: var(--section-padding);
    
}

.clients-container {
    max-width: 1200px;
    width: 90%;
    margin: 0 auto;
}

.clients-title {
    font-family: DMSerifText-Regular, serif;
    text-align: center;
    font-size: 2rem;
    font-weight: 400;
    color: var(--text-color);
    letter-spacing: 0.05em;
    margin-bottom: 40px;
}

.clients-carousel {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0 auto 50px;
    width: 100%;
    max-width: 1200px;
}

.clients-prev,
.clients-next {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: background 0.3s ease;
}

.clients-prev:hover,
.clients-next:hover {
    background: #0099B3;
}

.clients-prev img,
.clients-next img {
    width: 20px;
    height: 20px;
}

.clients-prev img {
    transform: rotate(180deg);
}

.clients-track {
    flex: 1;
    display: flex;
    gap: 30px;
    margin: 0 1rem;
    overflow: hidden;
    scroll-behavior: smooth;
}

.client-logo {
    flex: 0 0 calc(16.666% - 25px);
    padding: 15px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #FFFFFF;
    transition: all 0.3s ease;
}

.client-logo:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-3px);
}

.client-logo img {
    width: 100%;
    height:100%;
    object-fit: contain;
    display: block;
}

.clients-cta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 40px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.clients-cta-text {
    font-family: DMSerifText-Regular, serif;
    font-size: 2rem;
    font-weight: 400;
    color: var(--text-color);
    letter-spacing: 0.02em;
}

.btn-contact-us {
    display: inline-block;
    padding: 12px 35px;
    background:#73B8D1;
    color: #FFFFFF;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    font-size: 1rem;
    transition: background 0.3s ease;
}

.btn-contact-us:hover {
    background: #0099B3;
}

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

.success-stories-grid > a {
    display: block;
    width: 100%;
}

.success-story-card {
    display: flex;
    flex-direction: column;
    gap: 15px;
    background: #FFFFFF;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.3s ease;
}

.success-story-card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.success-story-image {
    width: 100%;
    overflow: hidden;
}

.success-story-image img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

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

.success-story-content {
    padding: 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 1rem;  /* 数值越大，标题/描述/链接之间的间距越宽 */
    align-items: center;
}

.success-story-card-title {
    font-family: DMSerifText-Regular, serif;
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-color);
    letter-spacing: 0.02em;
    line-height: 1.5;
}

.success-story-card-desc {
    font-size: 1.1rem;
    color: #666666;
    
}

.about-section {
    width: 100%;
    padding: 60px 0;
    background-color: #F8F9FB;
    display: flex;
    align-items: center;
    position: relative;
}

.about-container {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 80px;
}

.about-content {
    flex: 1;
    text-align: left;
    color: #333333;
    padding-right: 20px;
}

.about-title {
    font-family: DMSerifText-Regular, serif;
    font-size: 2rem;
    font-weight: 400;
    color: #333333;
    line-height: 1.2;
    margin: 0 0 20px 0;
}

.about-desc {
    font-family: DMSans-Regular, Arial, sans-serif;
    font-size: 1.1rem;
    font-weight: 400;
    color: #666666;
    line-height: 32px;
    margin: 0 0 30px 0;
}

.btn-about {
    display: inline-block;
    padding: 18px 40px;
    background: #73B8D1;
    color: #FFFFFF;
    text-decoration: none;
    border-radius: 29px;
    font-weight: 400;
    font-size: 16px;
    font-family: DMSans-Regular, Arial, sans-serif;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-about:hover {
    background: #5CA8C3;
    transform: scale(1.05);
}

.about-image {
    flex: 1.2;
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.item-links {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.link-orange,
.link-blue {
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.3s ease;
    border-bottom: 1px solid;
    padding-bottom: 2px;
}

.link-orange {
    color:#73B8D1;
    border-bottom-color: #73B8D1;
}

.link-orange:hover {
    color: #F0991F;
    border-bottom-color: #F0991F;
}

.link-blue {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.link-blue:hover {
    color: #0099B3;
    border-bottom-color: #0099B3;
}

@media screen and (max-width: 1200px) {
    :root {
        --hero-title-font-size: 2.4rem;
        --hero-tag-font-size: 0.95rem;
        --hero-feature-font-size: 0.9rem;
        --hero-video-font-size: 0.9rem;
    }

    .hero-content {
        margin-left: 8%;
        margin-bottom: 8rem;
    }

    .solutions-main {
        gap: 40px;
    }

    .solutions-main-content h3 {
        font-size: 1.5rem;
    }

    .section-title h2 {
        font-size: 1.8rem;
    }
    
    

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

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

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

    .why-choose-grid {
        gap: 40px;
    }

    .center-circle {
        width: 100px;
        height: 100px;
    }

    .circle-text {
        font-size: 0.85rem;
    }

    .item-icon {
        width: 70px;
        height: 70px;
    }

    .why-choose-item h4 {
        font-size: 1rem;
    }

    .why-choose-item p {
        font-size: 0.85rem;
    }

    .manufacturing-title {
        font-size: 1.8rem;
    }

    .manufacturing-image img {
        height: 200px;
    }

    .manufacturing-stats {
        gap: 4rem;
    }

    .stat-number {
        font-size: 2.2rem;
    }

    .stat-label {
        font-size: 0.85rem;
    }

    .stat-sub-label {
        font-size: 0.7rem;
    }

    .quality-title {
        font-size: 28px;
    }

    .quality-container {
        gap: 20px;
    }

    .quality-card-image img {
        height: 280px;
    }

    .quality-card-content {
        width: auto;
        height: auto;
        bottom: 15px;
        left: 15px;
        right: 15px;
        padding: 16px 20px;
    }

    .quality-card-title {
        font-size: 20px;
    }

    .quality-card-desc {
        font-size: 13px;
    }

    .quality-card-icon {
        width: 40px;
        height: 40px;
        margin-left: 12px;
    }

    .success-stories-title {
        font-size: 1.8rem;
    }

    .success-stories-grid {
        gap: 30px;
    }

    .success-story-image img {
        height: 250px;
    }

    .success-story-card-title {
        font-size: 1rem;
    }

    .about-section {
        padding: 50px 0;
    }

    .about-container {
        gap: 40px;
    }

    .about-title {
        font-size: 32px;
    }

    .about-desc {
        font-size: 13px;
        line-height: 28px;
    }

    .btn-about {
        padding: 15px 35px;
        font-size: 15px;
    }

    .about-image img {
        width: 45%;
    }

    .clients-title {
        font-size: 1.3rem;
    }

    .client-logo {
        flex: 0 0 calc(20% - 24px);
    }

    .clients-cta-text {
        font-size: 2rem;
    }

    .btn-contact-us {
        padding: 11px 30px;
        font-size: 0.95rem;
    }
}

@media screen and (max-width: 992px) {
    :root {
        --hero-title-font-size: 2rem;
        --hero-tag-font-size: 0.9rem;
        --hero-feature-font-size: 0.88rem;
        --hero-video-font-size: 0.88rem;
    }

    .hero-content {
        margin-left: 5%;
        margin-bottom: 6rem;
        max-width: 90%;
    }

    .solutions-main {
        flex-direction: column;
        text-align: center;
        gap: 40px;
    }

    .solutions-main-image {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .solutions-main-content {
        flex: 0 0 100%;
        align-items: center;
    }

    .carousel-card {
        flex: 0 0 calc(50% - 15px);
        flex-direction: column;
        align-items: flex-start;
    }

    .card-image {
        flex: 0 0 100%;
    }

    .card-content {
        flex: 0 0 100%;
    }

    .carousel-track {
        gap: 30px;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .product-image {
        width: 100%;
        height: auto;
    }

    .product-image img {
        height: 180px;
    }

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

    .why-choose-grid::before,
    .why-choose-grid::after {
        display: none;
    }

    .why-choose-center {
        position: static;
        transform: none;
        margin-bottom: 30px;
    }

    .center-circle {
        width: 90px;
        height: 90px;
        margin: 0 auto;
    }

    .circle-text {
        font-size: 0.8rem;
    }

    .item-icon {
        width: 60px;
        height: 60px;
    }

    .manufacturing-title {
        font-size: 1.5rem;
    }

    .manufacturing-card {
        flex: 0 0 calc(50% - 10px);
    }

    .manufacturing-image img {
        height: 180px;
    }

    .manufacturing-stats {
        gap: 40px;
        flex-wrap: wrap;
    }

    .stat-item {
        flex: 0 0 calc(50% - 20px);
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .stat-label {
        font-size: 0.8rem;
    }

    .stat-sub-label {
        font-size: 0.65rem;
    }

    .quality-title {
        font-size: 24px;
    }

    .quality-container {
        gap: 25px;
    }

    .quality-card-image img {
        height: 220px;
    }

    .quality-card-content {
        width: auto;
        height: auto;
        bottom: 12px;
        left: 12px;
        right: 12px;
        padding: 14px 18px;
    }

    .quality-card-title {
        font-size: 18px;
    }

    .quality-card-desc {
        font-size: 13px;
    }

    .quality-card-icon {
        width: 38px;
        height: 38px;
        margin-left: 10px;
    }

    .success-stories-title {
        font-size: 1.5rem;
    }

    .success-stories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .success-story-image img {
        height: 220px;
    }

    .success-story-card-title {
        font-size: 0.95rem;
    }

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

    .about-container {
        gap: 30px;
    }

    .about-title {
        font-size: 28px;
    }

    .about-desc {
        font-size: 13px;
        line-height: 26px;
    }

    .btn-about {
        padding: 13px 30px;
        font-size: 14px;
    }

    .about-image img {
        width: 42%;
    }

    .clients-title {
        font-size: 1.2rem;
    }

    .client-logo {
        flex: 0 0 calc(33.333% - 20px);
        height: 100px;
        padding: 15px;
    }

    .client-logo img {
        height: 60px;
        width: 100%;
        object-fit: contain;
    }

    .clients-cta-text {
        font-size: 1rem;
    }

    .btn-contact-us {
        padding: 10px 25px;
        font-size: 0.9rem;
    }
}

@media screen and (max-width: 768px) {
    :root {
        --hero-title-font-size: 1.5rem;
        --hero-tag-font-size: 0.85rem;
        --hero-feature-font-size: 0.82rem;
        --hero-video-font-size: 0.85rem;
        --section-padding: 40px 0;
    }

    .hero-content {
        margin-left: 5%;
        margin-right: 5%;
        margin-bottom: 4rem;
        text-align: left;
        max-width: 90%;
    }

    .hero-tag {
        margin-bottom: 1rem;
    }

    .hero-title {
        margin-bottom: 1.4rem;
    }

    .hero-features {
        gap: 0.6rem;
        margin-bottom: 2rem;
    }

    .hero-features li {
        padding-left: 24px;
    }

    .hero-features li::before {
        width: 18px;
        height: 18px;
        font-size: 0.65rem;
    }

    .hero-video-icon {
        width: 36px;
        height: 36px;
    }

    .hero-video-icon::before {
        border-left-width: 7px;
        border-top-width: 4px;
        border-bottom-width: 4px;
    }

    .section-title h2 {
        font-size: 1.5rem;
    }

    .solutions-main-content h3 {
        font-size: 1.3rem;
    }

    .btn-learn-more {
        padding: 10px 30px;
        font-size: 0.9rem;
    }

    .card-image img {
        height: 120px;
        width: 100%;
    }

    .carousel-card {
        flex: 0 0 100%;
        flex-direction: row;
        align-items: center;
        gap: 15px;
    }

    .card-image {
        flex: 0 0 45%;
    }

    .card-content {
        flex: 0 0 50%;
        padding: 0;
        justify-content: center;
    }

    .card-content h2 {
        font-size: 0.9rem;
    }

    .card-link {
        font-size: 0.85rem;
        color: #73B8D1 !important;
        border-bottom-color: #73B8D1 !important;
        display: inline-block !important;
    }

    .carousel-track {
        gap: 20px;
    }

    .carousel-prev,
    .carousel-next {
        width: 35px;
        height: 35px;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .product-image {
        width: 100%;
        height: auto;
    }

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

    .product-name {
        font-size: 0.85rem;
    }

    .why-choose-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .why-choose-center {
        position: static;
        transform: none;
        margin-bottom: 25px;
    }

    .center-circle {
        width: 80px;
        height: 80px;
        margin: 0 auto;
    }

    .circle-text {
        font-size: 0.75rem;
    }

    .item-icon {
        width: 55px;
        height: 55px;
    }

    .why-choose-item h4 {
        font-size: 0.95rem;
    }

    .why-choose-item p {
        font-size: 0.8rem;
    }

    .link-orange,
    .link-blue {
        font-size: 0.85rem;
    }

    .manufacturing-title {
        font-size: 1.3rem;
    }

    .manufacturing-carousel {
        width: 100%;
        max-width: 100%;
        margin: 0 0 30px;
    }

    .manufacturing-card {
        flex: 0 0 100%;
    }

    .manufacturing-image img {
        height: 200px;
    }

    .manufacturing-prev,
    .manufacturing-next {
        width: 35px;
        height: 35px;
    }

    .manufacturing-stats {
        gap: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .stat-item {
        flex: 0 0 calc(50% - 10px);
        text-align: center;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }

    .stat-sub-label {
        font-size: 0.6rem;
    }

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

    .quality-title {
        font-size: 20px;
    }

    .quality-container {
        flex-direction: column;
        gap: 20px;
    }

    .quality-card-image img {
        height: 200px;
    }

    .quality-card-content {
        width: auto;
        height: auto;
        bottom: 10px;
        left: 10px;
        right: 10px;
        padding: 12px 16px;
    }

    .quality-card-title {
        font-size: 16px;
    }

    .quality-card-desc {
        font-size: 12px;
    }

    .quality-card-icon {
        width: 34px;
        height: 34px;
        margin-left: 8px;
    }

    .quality-card-icon img {
        width: 14px;
        height: 14px;
    }

    .success-stories-title {
        font-size: 1.3rem;
    }

    .success-stories-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .success-story-image img {
        height: 180px;
    }

    .success-story-card-title {
        font-size: 0.9rem;
    }

    .about-section {
        padding: 30px 0;
    }

    .about-container {
        flex-direction: column;
        gap: 25px;
        text-align: center;
    }

    .about-content {
        order: 2;
        text-align: center;
    }

    .about-title {
        font-size: 24px;
    }

    .about-desc {
        font-size: 13px;
        line-height: 24px;
    }

    .btn-about {
        padding: 12px 28px;
        font-size: 14px;
    }

    .about-image {
        order: 1;
    }

    .about-image img {
        width: 100%;
        max-width: 350px;
    }

    .clients-title {
        font-size: 1.1rem;
    }

    .client-logo {
        flex: 0 0 calc(33.333% - 20px);
        padding: 15px;
        height: 100px;
    }

    .client-logo img {
        height: 60px;
        width: 100%;
        object-fit: contain;
    }

    .clients-cta {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .clients-cta-text {
        font-size: 0.95rem;
    }

    .btn-contact-us {
        padding: 10px 25px;
        font-size: 0.9rem;
    }

    .clients-prev,
    .clients-next {
        width: 35px;
        height: 35px;
    }
}

@media screen and (max-width: 480px) {
    :root {
        --hero-title-font-size: 1.2rem;
        --hero-tag-font-size: 0.8rem;
        --hero-feature-font-size: 0.78rem;
        --hero-video-font-size: 0.8rem;
    }

    .hero-content {
        margin-left: 5%;
        margin-right: 5%;
        margin-bottom: 3rem;
        max-width: 94%;
    }

    .hero-title {
        margin-bottom: 1.2rem;
    }

    .hero-features {
        gap: 0.5rem;
        margin-bottom: 1.8rem;
    }

    .hero-features li {
        padding-left: 22px;
    }

    .hero-features li::before {
        width: 16px;
        height: 16px;
        font-size: 0.6rem;
    }

    .hero-video-icon {
        width: 32px;
        height: 32px;
    }

    .hero-video-icon::before {
        border-left-width: 6px;
        border-top-width: 4px;
        border-bottom-width: 4px;
    }

    .section-title h2 {
        font-size: 1.2rem;
    }

    .solutions-main-content h3 {
        font-size: 1.1rem;
    }

    .btn-learn-more {
        padding: 8px 24px;
        font-size: 0.85rem;
    }

    .card-image img {
        height: 100px;
    }

    .card-content h2 {
        font-size: 0.85rem;
    }

    .card-link {
        font-size: 0.8rem;
        color: #73B8D1 !important;
        border-bottom-color: #73B8D1 !important;
        display: inline-block !important;
    }

    .carousel-card {
        flex: 0 0 100%;
        flex-direction: row;
        align-items: center;
        gap: 12px;
    }

    .card-image {
        flex: 0 0 45%;
    }

    .card-content {
        flex: 0 0 50%;
        padding: 0;
        justify-content: center;
    }

    .carousel-track {
        gap: 15px;
    }

    .carousel-prev,
    .carousel-next {
        width: 30px;
        height: 30px;
    }

    .products-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .product-image {
        width: 100%;
        height: auto;
    }

    .product-image img {
        height: 120px;
    }

    .product-name {
        font-size: 0.8rem;
    }

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

    .why-choose-center {
        position: static;
        transform: none;
        margin-bottom: 20px;
    }

    .center-circle {
        width: 70px;
        height: 70px;
        margin: 0 auto;
    }

    .circle-text {
        font-size: 0.7rem;
    }

    .item-icon {
        width: 50px;
        height: 50px;
    }

    .why-choose-item h4 {
        font-size: 0.9rem;
    }

    .why-choose-item p {
        font-size: 0.75rem;
    }

    .link-orange,
    .link-blue {
        font-size: 0.8rem;
    }

    .manufacturing-title {
        font-size: 1.1rem;
    }

    .manufacturing-card {
        flex: 0 0 100%;
    }

    .manufacturing-image img {
        height: 120px;
    }

    .manufacturing-prev,
    .manufacturing-next {
        width: 30px;
        height: 30px;
    }

    .manufacturing-stats {
        gap: 20px;
        flex-direction: column;
    }

    .stat-item {
        flex: 0 0 100%;
    }

    .stat-number {
        font-size: 1.3rem;
    }

    .stat-label {
        font-size: 0.7rem;
    }

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

    .quality-title {
        font-size: 18px;
    }

    .quality-container {
        flex-direction: column;
        gap: 15px;
    }

    .quality-card-image img {
        height: 180px;
    }

    .quality-card-content {
        width: auto;
        height: auto;
        bottom: 8px;
        left: 8px;
        right: 8px;
        padding: 10px 14px;
    }

    .quality-card-title {
        font-size: 14px;
    }

    .quality-card-desc {
        font-size: 11px;
    }

    .quality-card-icon {
        width: 30px;
        height: 30px;
        margin-left: 6px;
    }

    .quality-card-icon img {
        width: 12px;
        height: 12px;
    }

    .success-stories-title {
        font-size: 1.1rem;
    }

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

    .success-story-image img {
        height: 150px;
    }

    .success-story-card-title {
        font-size: 0.85rem;
    }

    .about-section {
        padding: 25px 0;
    }

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

    .about-title {
        font-size: 20px;
    }

    .about-desc {
        font-size: 12px;
        line-height: 22px;
    }

    .btn-about {
        padding: 10px 24px;
        font-size: 13px;
    }

    .about-image img {
        max-width: 300px;
    }

    .clients-title {
        font-size: 1rem;
    }

    .client-logo {
        flex: 0 0 calc(50% - 15px);
        padding: 15px;
        height: 120px;
    }

    .client-logo img {
        height: 80px;
        width: 100%;
        object-fit: contain;
    }

    .clients-cta {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .clients-cta-text {
        font-size: 0.9rem;
    }

    .btn-contact-us {
        padding: 10px 30px;
        font-size: 0.85rem;
    }

    .clients-prev,
    .clients-next {
        width: 30px;
        height: 30px;
    }
}