/* 修复关于我们板块视频 */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.old-about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-video {
    width: 100%;
}

.video-container {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    overflow: hidden;
    border-radius: 16px;
    background: #000;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* 修复产品介绍视频全屏 */
.product-video-section {
    padding: 100px 0;
    background: var(--bg-darker);
    width: 100%;
}

.product-video-section .container-fluid {
    width: 100%;
    max-width: 100%;
    padding: 0 20px;
}

.video-wrapper-full {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    overflow: hidden;
    border-radius: 16px;
    background: #000;
    margin-top: 2rem;
}

.video-wrapper-full iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    box-shadow: 0 0 40px rgba(0, 123, 255, 0.5);
}

/* Hero 区域全屏修复 */
.hero {
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    padding: 120px 0 !important;
}

.hero-bg {
    width: 100% !important;
    height: 100% !important;
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
}
/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1e40af;
    --primary-dark: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary-color: #0891b2;
    --accent-color: #f59e0b;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --bg-light: #f1f5f9;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 顶部联系栏 */
.top-bar {
    background: var(--text-dark);
    color: white;
    padding: 0.75rem 0;
    font-size: 0.875rem;
}

.top-bar-content {
    display: inline-flex;
    white-space: nowrap;
    justify-content: space-between;
    align-items: center;
}

.contact-info {
    display: inline-flex;
    white-space: nowrap;
    gap: 2rem;
    flex-wrap: wrap;
}

.contact-info span {
    display: inline-flex;
    white-space: nowrap;
    align-items: center;
    gap: 0.5rem;
}

.lang-switch {
    display: inline-flex;
    white-space: nowrap;
    gap: 1rem;
}

.lang-switch a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.lang-switch a:hover,
.lang-switch a.active {
    color: white;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    padding: 1rem 0;
}

.navbar .container {
    display: inline-flex;
    white-space: nowrap;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: inline-flex;
    white-space: nowrap;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    font-size: 2.5rem;
}

.logo-text {
    display: inline-flex;
    white-space: nowrap;
    flex-direction: column;
}

.logo-main {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.2;
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--text-light);
    font-weight: 400;
}

.nav-links {
    display: inline-flex;
    white-space: nowrap;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.btn-nav {
    background: var(--primary-color);
    color: white !important;
    padding: 0.6rem 1.5rem;
    border-radius: 5px;
}

.btn-nav:hover {
    background: var(--primary-dark);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero 区域 */
.hero {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, #1e3a8a 0%, #0891b2 100%);
    color: white;
    min-height: 80vh;
    display: inline-flex;
    white-space: nowrap;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('../images/hero-bg.gif');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.3;
}

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

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2.5rem;
}

.hero-highlights {
    display: inline-flex;
    white-space: nowrap;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.highlight-item {
    display: inline-flex;
    white-space: nowrap;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    backdrop-filter: blur(10px);
}

.highlight-icon {
    font-size: 1.25rem;
}

.highlight-text {
    font-weight: 500;
}

.hero-buttons {
    display: inline-flex;
    white-space: nowrap;
    gap: 1rem;
    justify-content: center;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--bg-light);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

/* 通用区域样式 */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* 核心优势 */
.advantages {
    background: var(--bg-white);
    margin-top: -60px;
    position: relative;
    z-index: 10;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.advantage-card {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
    text-align: center;
    transition: all 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.advantage-number {
    display: block;
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.advantage-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.advantage-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* 关于我们 */
.about {
    background: var(--bg-light);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.old-about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h3 {
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
}

.stat-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-light);
}

.about-image .image-placeholder {
    background: white;
    border-radius: 15px;
    padding: 4rem;
    text-align: center;
    box-shadow: var(--shadow-md);
}

.about-image .image-placeholder span {
    font-size: 6rem;
    display: block;
    margin-bottom: 1rem;
}

.about-image .image-placeholder p {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* 生产能力 */
.capabilities {
    background: var(--bg-white);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.capability-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.capability-card:hover {
    background: white;
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.capability-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.capability-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.capability-card ul {
    list-style: none;
}

.capability-card ul li {
    padding: 0.5rem 0;
    color: var(--text-light);
    font-size: 0.9rem;
    padding-left: 1.5rem;
    position: relative;
}

.capability-card ul li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: 700;
}

.capacity-chart {
    background: var(--bg-light);
    padding: 3rem;
    border-radius: 15px;
    text-align: center;
}

.capacity-chart h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.chart-bars {
    display: inline-flex;
    white-space: nowrap;
    justify-content: space-around;
    align-items: flex-end;
    gap: 2rem;
    flex-wrap: wrap;
}

.chart-item {
    display: inline-flex;
    white-space: nowrap;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.bar {
    width: 80px;
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 10px 10px 0 0;
    display: inline-flex;
    white-space: nowrap;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1rem;
    min-height: 60px;
    transition: all 0.3s ease;
}

.chart-item:hover .bar {
    transform: scaleY(1.05);
}

.label {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 500;
}

/* 产品服务 */
.products {
    background: var(--bg-light);
}

.service-tabs {
    display: inline-flex;
    white-space: nowrap;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.tab-btn {
    padding: 1rem 2.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-light);
}

.tab-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.tab-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.service-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    background: white;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
}

.service-text h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.service-text p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.service-features {
    list-style: none;
    margin-bottom: 2rem;
}

.service-features li {
    padding: 0.5rem 0;
    color: var(--text-dark);
    font-weight: 500;
}

.moq-info {
    display: inline-flex;
    white-space: nowrap;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--bg-light);
    border-radius: 10px;
    margin-top: 1.5rem;
}

.moq-label {
    color: var(--text-light);
    font-weight: 500;
}

.moq-value {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.25rem;
}

.service-image .image-placeholder {
    background: var(--bg-light);
    border-radius: 15px;
    padding: 4rem;
    text-align: center;
}

.service-image .image-placeholder span {
    font-size: 6rem;
    display: block;
    margin-bottom: 1rem;
}

.service-image .image-placeholder p {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* 认证资质 */
.certifications {
    background: var(--bg-white);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 2rem;
}

.cert-card {
    background: var(--bg-light);
    padding: 2rem 1.5rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
}

.cert-card:hover {
    background: white;
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.cert-badge {
    display: inline-block;
    width: 80px;
    height: 80px;
    line-height: 80px;
    background: var(--primary-color);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: 1rem;
}

.cert-card h4 {
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.cert-card p {
    font-size: 0.8rem;
    color: var(--text-light);
}

/* 合作流程 */
.process {
    background: var(--bg-light);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1.5rem;
    position: relative;
}

.process-timeline:before {
    content: '';
    position: absolute;
    top: 40px;
    left: 50px;
    right: 50px;
    height: 3px;
    background: var(--primary-light);
    z-index: 0;
}

.process-step {
    position: relative;
    z-index: 1;
    text-align: center;
}

.step-number {
    width: 80px;
    height: 80px;
    line-height: 80px;
    background: var(--primary-color);
    color: white;
    font-size: 2rem;
    font-weight: 700;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    box-shadow: var(--shadow-md);
}

.process-step h4 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.process-step p {
    font-size: 0.875rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* 联系询盘 */
.contact {
    background: var(--bg-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info-box {
    background: var(--primary-color);
    color: white;
    padding: 3rem;
    border-radius: 15px;
}

.contact-info-box h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

.info-item {
    display: inline-flex;
    white-space: nowrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-icon {
    font-size: 1.5rem;
}

.info-item strong {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
    opacity: 0.8;
}

.info-item p {
    font-size: 1rem;
}

.contact-form {
    background: var(--bg-light);
    padding: 3rem;
    border-radius: 15px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

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

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-light);
    font-size: 0.8rem;
}

.form-note {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

/* 页脚 */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--primary-light);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: white;
}

.social-links {
    display: inline-flex;
    white-space: nowrap;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.social-links a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    transition: all 0.3s ease;
    font-size: 0.875rem;
}

.social-links a:hover {
    background: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 0.5rem;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
}

.footer-bottom a:hover {
    color: white;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .advantages-grid,
    .capabilities-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cert-grid,
    .process-timeline {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .process-timeline:before {
        display: none;
    }
}

@media (max-width: 992px) {
    .about-content,
    .service-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .top-bar-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .contact-info {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-highlights {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .advantages-grid,
    .capabilities-grid,
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .cert-grid,
    .process-timeline {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .cert-grid,
    .process-timeline {
        grid-template-columns: 1fr;
    }
    
    .service-tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        width: 100%;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.advantage-card,
.capability-card,
.cert-card,
.process-step {
    animation: fadeInUp 0.6s ease forwards;
}

/* 产品展示板块 */
.products-display {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.products-display .section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.products-display .section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.125rem;
    margin-bottom: 3rem;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.product-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
    display: block;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.product-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    background: #f1f5f9;
    display: inline-flex;
    white-space: nowrap;
    align-items: center;
    justify-content: center;
}

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

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

.product-info {
    padding: 1.5rem;
    text-align: center;
}

.product-info h3 {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.product-info p {
    color: var(--text-light);
    font-size: 0.875rem;
}

@media (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .products-display {
        padding: 60px 0;
    }
}

/* 优势板块图片 */
.advantage-image {
    width: 100%;
    padding-top: 56.25%;
    position: relative;
    overflow: hidden;
    background: #0f2442;
}

.advantage-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.advantage-content {
    padding: 1.5rem;
    text-align: center;
}

.advantage-item {
    display: inline-flex;
    white-space: nowrap;
    flex-direction: column;
}

/* 产品图片修复 - 正方形排版 */
.product-card {
    display: inline-flex;
    white-space: nowrap;
    flex-direction: column;
}

.product-image {
    position: relative;
    width: 100%;
    padding-top: 100%;
    background: #ffffff;
    overflow: hidden;
}

.product-image img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.product-card:hover .product-image img {
    transform: translate(-50%, -50%) scale(1.05);
}

/* YouTube 视频响应式容器 */
.video-container,
.video-wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    overflow: hidden;
    border-radius: 16px;
    background: #000;
}

.video-container iframe,
.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.about-video {
    grid-column: 1 / -1;
}

.product-video-section {
    padding: 100px 0;
    background: var(--bg-darker);
}

.product-video-section .video-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    box-shadow: var(--glow-blue);
}
@import url("video-styles.css");
@import url("fix-styles.css");
@import url("final-fix.css");
@import url("layout-fix.css");
@import url("final.css");
@import url("video-layout.css");
@import url("new-layout.css");
@import url("modern-about.css");
/* 关于我们现代化布局 */
.about {
    padding: 100px 0;
    background: var(--bg-dark);
}

.about .container-fluid {
    width: 100%;
    max-width: 100%;
    padding: 0 5%;
}

.about-modern {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    margin-top: 3rem;
    align-items: center;
}

.about-text-wrapper h3 {
    color: var(--text-white);
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.about-text-wrapper p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 1rem;
    font-size: 1rem;
}

/* 数据标签横向排列 */
.data-tags {
    display: flex;
    gap: 2rem;
    margin-top: 2.5rem;
    flex-wrap: wrap;
}

.data-tag {
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.15), rgba(0, 224, 255, 0.1));
    padding: 1.5rem 2rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid rgba(0, 123, 255, 0.3);
    min-width: 140px;
    flex: 1;
}

.data-value {
    display: block;
    font-size: 2rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.data-label {
    color: var(--text-gray);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 视频全屏自适应 */
.about-video-wrapper {
    width: 100%;
}

.video-fullscreen {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    border-radius: 16px;
    overflow: hidden;
    background: #000;
    box-shadow: 0 20px 60px rgba(0, 123, 255, 0.4);
}

.video-fullscreen iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* 响应式 */
@media (max-width: 1024px) {
    .about-modern {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .data-tags {
        gap: 1rem;
    }
    
    .data-tag {
        min-width: 120px;
        padding: 1rem;
    }
}

@media (max-width: 640px) {
    .data-tags {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .data-value {
        font-size: 1.5rem;
    }
}

/* 关于我们标题左对齐 */
.section-title-left {
    color: var(--text-white);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    text-align: left;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.section-title-left:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: 2px;
}

/* 移除原来的居中样式 */
.about .section-title {
    display: none;
}
@import url("mobile-responsive.css");
@import url("mobile-compact.css");