/* ============================================
   About Us Page Styles - Pixel Perfect
   ============================================ */

/* Hero Image Section */
.about-hero-section {
    margin-top: 65px;
    width: 100%;
    height: 600px;
    overflow: hidden;
    position: relative;
}

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

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

/* Introduction Section */
.introduction-section {
    padding: 120px 0;
    background: var(--white);
    position: relative;
}
.introduction-section .container{
    position: relative;
    z-index: 1;
}
.introduction-content {
    display: flex;
    align-items: flex-start;
    gap: 80px;
    margin-top: 60px;
}

.introduction-logo {
    flex: 0 0 500px;
    position: relative;
}

.linker-logo-graphic {
    width: 100%;
    height: auto;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 40px 0;
}

.linker-logo-text {
    font-size: 180px;
    font-weight: 900;
    line-height: 0.9;
    letter-spacing: -5px;
    text-transform: uppercase;
    position: relative;
    color: #2a2a2a;
    text-shadow: 
        2px 2px 0 rgba(255, 255, 255, 0.8),
        -2px -2px 0 rgba(0, 0, 0, 0.1),
        4px 4px 8px rgba(0, 0, 0, 0.15);
    background: linear-gradient(135deg, #4a4a4a 0%, #1a1a1a 50%, #4a4a4a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.linker-logo-text::before {
    content: 'Linker';
    position: absolute;
    top: 0;
    left: 0;
    font-size: 180px;
    font-weight: 900;
    color: #000;
    text-shadow: none;
    z-index: -1;
    opacity: 0.3;
}

.linker-play-button {
    position: absolute;
    right: 0;
    left: 0;
    margin:auto;
    top: 50%;
    transform: translateY(-50%);
    width: 80px;
    height: 80px;
    background: var(--primary-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(199, 0, 0, 0.4);
    transition: all 0.3s ease;
    z-index: 10;
}

.linker-play-button:hover {
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 6px 20px rgba(199, 0, 0, 0.5);
}

.linker-play-button i {
    margin-left: 3px;
}

.introduction-text {
    flex: 1;
}

.company-name {
    font-size: 48px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 30px;
    margin-top: 0;
}

.company-description {
    font-size: 20px;
    color: var(--text-dark);
    line-height: 2;
    margin-bottom: 30px;
}

.intro-stats {
    display: flex;
    gap: 60px;
    padding-top: 40px;
    padding: 40px 30px 30px;
    border-radius: 10px;
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 60px auto 0;
}

.intro-stat-item {
    display: flex;
    align-items: center;
    gap: 30px;
    flex: 1;
}

.stat-icon-wrapper {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

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

.stat-content {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.stat-number {
    font-size: 64px;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1;
    margin-bottom: 0;
}

.stat-label {
    font-size: 16px;
    color: #333;
    text-align: left;
    line-height: 1.4;
}
.logo-txt{
    font-size: 194px;
    text-align: center;
}
.logo-txt span{
    right: 0;
    top: -80px;
}
/* Professional Manufacturer Section */
.professional-manufacturer-section {
    padding: 120px 0;
    background: var(--bg-gray);
}

.professional-manufacturer-section .section-title {
    font-size: 32px;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 30px;
}

.professional-manufacturer-section .section-description {
    max-width: 900px;
    margin: 0 auto 60px;
    font-size: 16px;
    line-height: 1.8;
}

.manufacturer-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.manufacturer-feature-item {
    text-align: center;
}

.feature-icon-box {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: var(--white);
    border: 2px solid var(--border-gray);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--text-dark);
    transition: all 0.3s ease;
}

.manufacturer-feature-item:hover .feature-icon-box {
    border-color: var(--primary-red);
    background: var(--primary-red);
    color: var(--white);
}

.manufacturer-feature-item p {
    font-size: 16px;
    color: var(--text-dark);
    line-height: 1.6;
}

    .professional-manufacturer-section .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 15px 40px;
    }
    
    .btn-primary.btn2 {
        font-size: 14px;
        padding: 12px 30px;
    }

/* Development History Section */
.development-history-section {
    padding: 120px 0;
    background: url(../images/history-bg.jpg) no-repeat center center;
    background-size: cover;
}

.history-timeline {
    margin-top: 60px;
}

.timeline-years {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-bottom: 60px;
    padding: 0 20px;
    flex-wrap: wrap;
}

.timeline-year {
    font-size: 22px;
    font-weight: 500;
    color: var(--text-light);
    line-height: 48px;
    cursor: pointer;
    padding: 10px 20px;
    position: relative;
    transition: all 0.3s ease;
}


.timeline-year.active {
    color: #000;
    font-weight: 600;
    line-height: 1;
    font-size: 48px;
}


.history-cards {
    position: relative;
    min-height: 300px;
}

.history-card-content {
    display: none;
    gap: 30px;
    align-items: stretch;
}

.history-card-content.active {
    display: flex;
}

.history-card-left {
    flex: 0 0 280px;
    background: var(--white);
    border: none;
    padding: 30px 25px;
    border-radius: 10px;
    position: relative;
    display: flex;
    flex-direction: column;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.history-year-label {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
}
.history-year-label span{
    color: var(--primary-red);
    font-size: 64px;
}
.history-category {
    font-size: 40px;
    color: #d6d6d6;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    font-weight: 600;
}

.history-indicator {
    width: 20px;
    height: 20px;
    background: var(--primary-red);
    border-radius: 4px;
}

.history-card-right {
    flex: 1;
    background: url(../images/history-bg2.jpg) no-repeat bottom center #fff;
    background-size: 100%;
    border: none;
    padding: 40px 35px;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.history-year {
    font-size: 22px;
    font-weight: 600;
    color: #000;
    margin-bottom: 20px;
}

.history-description {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
}

/* Employee Profile Section */
.employee-profile-section {
    padding: 120px 0;
    background: url(../images/employee-bg.jpg) no-repeat center center;
    background-size: 100%;
    position: relative;
    overflow: hidden;
}

.employee-gallery-wrapper {
    margin-top: 60px;
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: flex-end;
}

.employee-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    width: 1060px;
    max-width: 100%;
    align-items: start;
}

.employee-gallery-item {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    break-inside: avoid;
    display: none;
    flex-direction: column;
}

.employee-gallery-item.active {
    display: flex;
}

.employee-gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.employee-gallery-item img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* 瀑布流布局 - 两列自然排列，每页4张图片按顺序排列 */
.employee-gallery-item:nth-child(4n+1) {
    grid-column: 1;
}

.employee-gallery-item:nth-child(4n+2) {
    grid-column: 2;
}

.employee-gallery-item:nth-child(4n+3) {
    grid-column: 1;
}

.employee-gallery-item:nth-child(4n+4) {
    grid-column: 2;
}

.employee-gallery-nav {
    position: absolute;
    bottom: -60px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    z-index: 10;
}

.gallery-nav-btn {
    width: 50px;
    height: 50px;
    background: var(--white);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.gallery-nav-btn.prev {
    background: rgba(0, 0, 0, 0.1);
    color: var(--text-dark);
}

.gallery-nav-btn.next {
    background: var(--primary-red);
    color: var(--white);
}

.gallery-nav-btn.prev:hover {
    background: rgba(0, 0, 0, 0.2);
}

.gallery-nav-btn.next:hover {
    background: #A50000;
}

.gallery-pagination {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-red);
}

.gallery-pagination .separator {
    margin: 0 5px;
    color: var(--text-light);
}

.city-skyline-bg {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 400px;
    height: 200px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 400 200"><path d="M0,200 L50,150 L100,180 L150,120 L200,160 L250,100 L300,140 L350,80 L400,120 L400,200 Z" fill="none" stroke="rgba(0,0,0,0.05)" stroke-width="2"/></svg>') no-repeat;
    background-size: contain;
    opacity: 0.3;
    z-index: 1;
}

/* Corporate Culture Section */
.corporate-culture-section {
    padding: 120px 0;
    background: url(../images/culture-bg.jpg) no-repeat center center;
    background-size: cover;
    position: relative;
    overflow: hidden;
}

.culture-wrapper {
    margin-top: 80px;
    display: flex;
    align-items: center;
    position: relative;
    justify-content: space-between;
    z-index: 1;
}

.culture-tabs {
    flex: 0 0 auto;
    min-width: 300px;
}

.culture-tab {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 0;
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--border-gray);
    position: relative;
}

.culture-tab:hover,
.culture-tab.active {
    border-bottom-color: var(--primary-red);
}

.culture-tab-text {
    font-size: 22px;
    font-weight: 500;
    color: var(--text-light);
    transition: color 0.3s ease;
}

.culture-tab:hover .culture-tab-text,
.culture-tab.active .culture-tab-text {
    color: var(--primary-red);
    font-weight: 600;
}

.culture-tab i {
    font-size: 16px;
    color: var(--text-light);
    transition: color 0.3s ease;
}

.culture-tab:hover i,
.culture-tab.active i {
    color: var(--primary-red);
}

.culture-content-area {
    width: 750px;
    max-width: 100%;
    position: relative;
    min-height: 300px;
    display: flex;
    align-items: center;
}

.culture-content-item {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    transform: translateY(-50%);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.culture-content-item.active {
    opacity: 1;
    visibility: visible;
}

.culture-content-title {
    font-size: 30px;
    font-weight: 600;
    color: var(--primary-red);
    margin-bottom: 25px;
}

.culture-content-text {
    font-size: 18px;
    color: var(--text-dark);
    line-height: 1.8;
}


/* Honorary Qualifications Section */
.honorary-qualifications-section {
    padding: 120px 0 100px;
}

.certificates-carousel-wrapper {
    position: relative;
    margin-top: 60px;
    padding: 0 80px;
}

.certificates-swiper {
    padding: 20px 0;
    overflow: visible;
}

.certificates-swiper .swiper-slide {
    height: auto;
}

.certificate-item {
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
    background: var(--white);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.certificate-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.certificate-item img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
}

.cert-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: var(--white);
    border: 2px solid var(--border-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
}

.cert-nav-btn:hover {
    background: var(--primary-red);
    border-color: var(--primary-red);
    color: var(--white);
}

.cert-nav-btn.prev {
    left: 0;
}

.cert-nav-btn.next {
    right: 0;
}

/* About Contact Section */
.about-contact-section {
    padding: 120px 0;
    background: var(--white);
}

.about-contact-content {
    display: flex;
    gap: 80px;
    margin-top: 60px;
    align-items: flex-start;
}

.about-contact-info {
    flex: 1;
}

.contact-detail-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 25px;
}

.contact-detail-item i {
    font-size: 20px;
    color: var(--primary-red);
    margin-top: 3px;
    flex-shrink: 0;
    width: 24px;
    text-align: center;
}

.contact-detail-item span {
    font-size: 16px;
    color: var(--text-dark);
    line-height: 1.8;
    flex: 1;
}

.contact-action-links {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-action-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 18px;
    color: var(--text-dark);
    font-weight: 500;
    padding: 15px 0;
    border-bottom: 1px solid var(--border-gray);
    transition: all 0.3s ease;
}

.contact-action-link:hover {
    color: var(--primary-red);
    border-bottom-color: var(--primary-red);
}

.contact-action-link i {
    color: var(--primary-red);
    font-size: 16px;
    transition: transform 0.3s ease;
}

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

.newsletter-section {
    flex: 1;
}

.newsletter-section h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 30px;
}

/* Search Icon in Header */
.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.search-icon {
    width: 45px;
    height: 45px;
    background: var(--primary-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.search-icon:hover {
    background: #C4000F;
    transform: scale(1.05);
}

/* Responsive Design */
@media (max-width: 1440px) {
    .company-name{
        font-size: 32px;
    }
    .company-description{
        font-size: 14px;
    }
    .stat-icon-wrapper{
        width: 40px;
        height: 40px;
    }
    .stat-number{
        font-size: 48px;
    }
    .stat-label{
        font-size: 12px;
    }
    .logo-txt{
        font-size: 140px;
    }
    .manufacturer-section .section-title{
        font-size: 32px;
    }
    .introduction-content {
        gap: 60px;
    }
    
    .introduction-logo {
        flex: 0 0 350px;
    }
    
    .manufacturer-features {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 992px) {
    .introduction-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .introduction-logo {
        flex: 0 0 auto;
        width: 100%;
        max-width: 400px;
    }
    
    .intro-stats {
        justify-content: center;
        gap: 40px;
    }
    
    .manufacturer-features {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .history-cards {
        flex-direction: column;
    }
    
    .history-card-left {
        flex: 0 0 auto;
    }
    
    .employee-gallery {
        height: auto;
        min-height: 500px;
    }
    
    .employee-gallery {
        grid-template-columns: repeat(2, 1fr);
        width: 100%;
    }
    
    .employee-gallery-item.item-1,
    .employee-gallery-item.item-2,
    .employee-gallery-item.item-3,
    .employee-gallery-item.item-4 {
        grid-column: auto;
        grid-row: auto;
    }
    
    .employee-gallery-nav {
        position: relative;
        bottom: auto;
        right: auto;
        justify-content: center;
        margin-top: 30px;
    }
    
    .about-contact-content {
        flex-direction: column;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    /* 内页 Banner 优化 */
    .inner-page-banner {
        margin-top: 65px;
    }
    
    .inner-page-banner img {
        width: 100%;
        height: auto;
        display: block;
    }
    
    /* 容器内边距优化 */
    .introduction-section .container,
    .professional-manufacturer-section .container,
    .development-history-section .container,
    .employee-profile-section .container,
    .corporate-culture-section .container,
    .honorary-qualifications-section .container,
    .about-contact-section .container {
        padding-left: 20px;
        padding-right: 20px;
    }
    
    /* Hero 区域优化 */
    .about-hero-section {
        height: 300px;
        margin-top: 65px;
    }
    
    /* 各区域 padding 优化 */
    .introduction-section,
    .professional-manufacturer-section,
    .development-history-section,
    .employee-profile-section,
    .corporate-culture-section,
    .honorary-qualifications-section,
    .about-contact-section {
        padding: 40px 0;
    }
    
    /* Introduction 区域优化 */
    .introduction-section .section-title {
        font-size: 28px;
    }
    
    .introduction-content {
        flex-direction: column;
        gap: 30px;
        margin-top: 30px;
    }
    
    .introduction-logo {
        flex: 0 0 auto;
        width: 100%;
        max-width: 100%;
    }
    
    .linker-logo-graphic {
        padding: 20px 0;
        justify-content: center;
    }
    
    .linker-logo-text {
        font-size: 120px;
        letter-spacing: -3px;
    }
    
    .linker-logo-text::before {
        font-size: 120px;
    }
    
    .linker-play-button {
        width: 60px;
        height: 60px;
        font-size: 20px;
    }
    
    .introduction-text {
        width: 100%;
    }
    
    .company-name {
        font-size: 32px;
        margin-bottom: 20px;
    }
    
    .company-description {
        font-size: 16px;
        line-height: 1.8;
        margin-bottom: 20px;
    }
    
    /* 统计数据优化 */
    .intro-stats {
        flex-direction: column;
        gap: 25px;
        padding: 30px 20px;
        margin-top: 40px;
    }
    
    .intro-stat-item {
        flex-direction: row;
        gap: 20px;
        width: 100%;
    }
    
    .stat-icon-wrapper {
        width: 50px;
        height: 50px;
    }
    
    .stat-number {
        font-size: 48px;
    }
    
    .stat-label {
        font-size: 14px;
    }
    
    .logo-txt {
        font-size: 120px;
        margin-top: 30px;
    }
    
    /* 通用标题优化 */
    .section-title,
    .section-title-left {
        font-size: 28px !important;
    }
    
    /* Professional Manufacturer 区域优化 */
    .professional-manufacturer-section .section-title {
        font-size: 24px;
        letter-spacing: 1px;
        margin-bottom: 20px;
    }
    
    .professional-manufacturer-section .section-description {
        font-size: 14px;
        margin-bottom: 40px;
    }
    
    .manufacturer-features {
        grid-template-columns: 1fr;
        gap: 30px;
        margin-bottom: 40px;
    }
    
    .feature-icon-box {
        width: 70px;
        height: 70px;
        font-size: 28px;
        margin-bottom: 20px;
    }
    
    .manufacturer-feature-item p {
        font-size: 14px;
    }
    
    /* Features Grid 优化 */
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
        margin-bottom: 40px;
    }
    
    .feature-item {
        text-align: center;
    }
    
    .feature-item .feature-icon {
        margin-bottom: 15px;
    }
    
    .feature-item .feature-icon img {
        max-width: 60px;
        height: auto;
    }
    
    .feature-item h3 {
        font-size: 14px;
        line-height: 1.5;
    }
    
    /* Development History 区域优化 */
    .development-history-section .section-title {
        font-size: 28px;
    }
    
    .history-timeline {
        margin-top: 40px;
    }
    
    .timeline-years {
        gap: 15px;
        margin-bottom: 40px;
        padding: 0 10px;
        justify-content: flex-start;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        flex-wrap: nowrap;
    }
    
    .timeline-year {
        font-size: 18px;
        padding: 8px 15px;
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    .timeline-year.active {
        font-size: 32px;
    }
    
    .history-cards {
        min-height: auto;
    }
    
    .history-card-content {
        flex-direction: column;
        gap: 20px;
    }
    
    .history-card-left {
        flex: 0 0 auto;
        padding: 25px 20px;
    }
    
    .history-year-label {
        font-size: 18px;
        margin-bottom: 8px;
    }
    
    .history-year-label span {
        font-size: 48px;
    }
    
    .history-category {
        font-size: 28px;
        margin-bottom: 15px;
    }
    
    .history-card-right {
        padding: 30px 25px;
    }
    
    .history-year {
        font-size: 20px;
        margin-bottom: 15px;
    }
    
    .history-description {
        font-size: 14px;
        line-height: 1.7;
    }
    
    /* Employee Profile 区域优化 */
    .employee-profile-section .section-title-left {
        font-size: 28px;
    }
    
    .employee-gallery-wrapper {
        margin-top: 40px;
        justify-content: center;
    }
    
    .employee-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        width: 100%;
    }
    
    .employee-gallery-nav {
        position: relative;
        bottom: auto;
        right: auto;
        justify-content: center;
        margin-top: 30px;
    }
    
    .gallery-nav-btn {
        width: 45px;
        height: 45px;
        font-size: 16px;
    }
    
    .gallery-pagination {
        font-size: 16px;
    }
    
    /* Corporate Culture 区域优化 */
    .corporate-culture-section .section-title-left {
        font-size: 28px;
    }
    
    .culture-wrapper {
        flex-direction: column;
        gap: 30px;
        margin-top: 40px;
    }
    
    .culture-tabs {
        min-width: auto;
        width: 100%;
    }
    
    .culture-tab {
        padding: 20px 0;
    }
    
    .culture-tab-text {
        font-size: 18px;
    }
    
    .culture-content-area {
        width: 100%;
        min-height: 200px;
    }
    
    .culture-content-title {
        font-size: 24px;
        margin-bottom: 20px;
    }
    
    .culture-content-text {
        font-size: 16px;
        line-height: 1.7;
    }
    
    /* Honorary Qualifications 区域优化 */
    .honorary-qualifications-section .section-title {
        font-size: 28px;
    }
    
    .certificates-carousel-wrapper {
        margin-top: 40px;
        padding: 0 50px;
        overflow: hidden;
    }
    
    .certificates-swiper {
        overflow: hidden;
    }
    
    .certificate-item {
        height: 300px;
        padding: 15px;
    }
    
    .cert-nav-btn {
        width: 40px;
        height: 40px;
        font-size: 14px;
    }
    
    .cert-nav-btn.prev {
        left: 5px;
    }
    
    .cert-nav-btn.next {
        right: 5px;
    }
    
    /* About Contact 区域优化 */
    .about-contact-content {
        flex-direction: column;
        gap: 30px;
        margin-top: 40px;
    }
    
    .contact-detail-item {
        gap: 15px;
        margin-bottom: 20px;
    }
    
    .contact-detail-item i {
        font-size: 18px;
    }
    
    .contact-detail-item span {
        font-size: 14px;
    }
    
    .contact-action-links {
        margin-top: 30px;
        gap: 15px;
    }
    
    .contact-action-link {
        font-size: 16px;
        padding: 12px 0;
    }
    
    .newsletter-section h3 {
        font-size: 20px;
        margin-bottom: 20px;
    }
}

@media (max-width: 576px) {
    /* 内页 Banner 进一步优化 */
    .inner-page-banner {
        margin-top: 65px;
    }
    
    /* 容器内边距进一步优化 */
    .introduction-section .container,
    .professional-manufacturer-section .container,
    .development-history-section .container,
    .employee-profile-section .container,
    .corporate-culture-section .container,
    .honorary-qualifications-section .container,
    .about-contact-section .container {
        padding-left: 15px;
        padding-right: 15px;
    }
    
    /* Hero 区域进一步优化 */
    .about-hero-section {
        height: 250px;
    }
    
    /* 各区域 padding 进一步优化 */
    .introduction-section,
    .professional-manufacturer-section,
    .development-history-section,
    .employee-profile-section,
    .corporate-culture-section,
    .honorary-qualifications-section,
    .about-contact-section {
        padding: 30px 0;
    }
    
    /* Introduction 区域进一步优化 */
    .introduction-section .section-title {
        font-size: 24px;
    }
    
    .introduction-content {
        gap: 25px;
        margin-top: 25px;
    }
    
    .linker-logo-text {
        font-size: 80px;
        letter-spacing: -2px;
    }
    
    .linker-logo-text::before {
        font-size: 80px;
    }
    
    .linker-play-button {
        width: 50px;
        height: 50px;
        font-size: 18px;
    }
    
    .company-name {
        font-size: 28px;
        margin-bottom: 15px;
    }
    
    .company-description {
        font-size: 14px;
        line-height: 1.7;
        margin-bottom: 15px;
    }
    
    /* 统计数据进一步优化 */
    .intro-stats {
        gap: 20px;
        padding: 25px 15px;
        margin-top: 30px;
    }
    
    .intro-stat-item {
        gap: 15px;
    }
    
    .stat-icon-wrapper {
        width: 45px;
        height: 45px;
    }
    
    .stat-number {
        font-size: 40px;
    }
    
    .stat-label {
        font-size: 13px;
    }
    
    .logo-txt {
        font-size: 80px;
        margin-top: 25px;
    }
    
    /* 通用标题进一步优化 */
    .section-title,
    .section-title-left {
        font-size: 24px !important;
    }
    
    /* Professional Manufacturer 区域进一步优化 */
    .professional-manufacturer-section .section-title {
        font-size: 20px;
        margin-bottom: 15px;
    }
    
    .professional-manufacturer-section .section-description {
        font-size: 13px;
        margin-bottom: 30px;
    }
    
    .btn-primary.btn2 {
        font-size: 13px;
        padding: 10px 25px;
    }
    
    .manufacturer-features {
        gap: 25px;
        margin-bottom: 30px;
    }
    
    .feature-icon-box {
        width: 60px;
        height: 60px;
        font-size: 24px;
        margin-bottom: 15px;
    }
    
    .manufacturer-feature-item p {
        font-size: 13px;
    }
    
    /* Features Grid 进一步优化 */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 30px;
    }
    
    .feature-item .feature-icon img {
        max-width: 50px;
    }
    
    .feature-item h3 {
        font-size: 13px;
        line-height: 1.4;
    }
    
    /* Development History 区域进一步优化 */
    .development-history-section .section-title {
        font-size: 24px;
    }
    
    .history-timeline {
        margin-top: 30px;
    }
    
    .timeline-years {
        gap: 10px;
        margin-bottom: 30px;
        padding: 0 5px;
    }
    
    .timeline-year {
        font-size: 16px;
        padding: 6px 12px;
    }
    
    .timeline-year.active {
        font-size: 28px;
    }
    
    .history-card-content {
        gap: 15px;
    }
    
    .history-card-left {
        padding: 20px 15px;
    }
    
    .history-year-label {
        font-size: 16px;
        margin-bottom: 6px;
    }
    
    .history-year-label span {
        font-size: 40px;
    }
    
    .history-category {
        font-size: 24px;
        margin-bottom: 12px;
    }
    
    .history-card-right {
        padding: 25px 20px;
    }
    
    .history-year {
        font-size: 18px;
        margin-bottom: 12px;
    }
    
    .history-description {
        font-size: 13px;
        line-height: 1.6;
    }
    
    /* Employee Profile 区域进一步优化 */
    .employee-profile-section .section-title-left {
        font-size: 24px;
    }
    
    .employee-gallery-wrapper {
        margin-top: 30px;
    }
    
    .employee-gallery {
        gap: 15px;
    }
    
    .employee-gallery-nav {
        margin-top: 25px;
    }
    
    .gallery-nav-btn {
        width: 40px;
        height: 40px;
        font-size: 14px;
    }
    
    .gallery-pagination {
        font-size: 14px;
    }
    
    /* Corporate Culture 区域进一步优化 */
    .corporate-culture-section .section-title-left {
        font-size: 24px;
    }
    
    .culture-wrapper {
        gap: 25px;
        margin-top: 30px;
    }
    
    .culture-tab {
        padding: 15px 0;
    }
    
    .culture-tab-text {
        font-size: 16px;
    }
    
    .culture-content-area {
        min-height: 150px;
    }
    
    .culture-content-title {
        font-size: 20px;
        margin-bottom: 15px;
    }
    
    .culture-content-text {
        font-size: 14px;
        line-height: 1.6;
    }
    
    /* Honorary Qualifications 区域进一步优化 */
    .honorary-qualifications-section .section-title {
        font-size: 24px;
    }
    
    .certificates-carousel-wrapper {
        margin-top: 30px;
        padding: 0 40px;
    }
    
    .certificate-item {
        height: 250px;
        padding: 10px;
    }
    
    .cert-nav-btn {
        width: 35px;
        height: 35px;
        font-size: 12px;
    }
    
    .cert-nav-btn.prev {
        left: 0;
    }
    
    .cert-nav-btn.next {
        right: 0;
    }
    
    /* About Contact 区域进一步优化 */
    .about-contact-content {
        gap: 25px;
        margin-top: 30px;
    }
    
    .contact-detail-item {
        gap: 12px;
        margin-bottom: 15px;
    }
    
    .contact-detail-item i {
        font-size: 16px;
    }
    
    .contact-detail-item span {
        font-size: 13px;
    }
    
    .contact-action-links {
        margin-top: 25px;
        gap: 12px;
    }
    
    .contact-action-link {
        font-size: 14px;
        padding: 10px 0;
    }
    
    .newsletter-section h3 {
        font-size: 18px;
        margin-bottom: 15px;
    }
}