/* ============================================
   PROFESSIONAL ABOUT PAGE STYLES
   ============================================ */

/* Hero Banner */
.about-hero {
    background: linear-gradient(135deg, #0a2a5f 0%, #1e429f 100%);
    color: white;
    min-height: 600px;  /* 添加：统一最小高度 */
    display: flex;
    align-items: center;  /* 添加：内容垂直居中 */
    padding: 0;  /* 修改：移除上下内边距，让flex控制居中 */
    position: relative;
    overflow: hidden;
}

/* 确保容器占满高度 */
.about-hero .container {
    width: 100%;
    padding: 2rem 1rem;  /* 添加：统一内边距 */
}

/* 调整行高确保垂直居中 */
.about-hero .row {
    align-items: center;
    width: 100%;
}

/* 限制图片高度，避免撑高 */
.about-hero .hero-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    max-height: 400px;  /* 添加：限制图片高度 */
}

.about-hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: rgba(255, 255, 255, 0.05);
    clip-path: polygon(100% 0, 0 0, 100% 100%);
}

.hero-content .hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-content .hero-title .highlight {
    color: #4dc0ff;
    position: relative;
    display: inline-block;
}

.hero-content .hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background: #4dc0ff;
    border-radius: 2px;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 3rem;
    max-width: 600px;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
    color: #4dc0ff;
}

.stat-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
    margin-top: 0.5rem;
}

.hero-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.hero-image img {
    width: 100%;
    height: auto;
    transition: transform 0.5s ease;
}

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

.experience-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.95);
    color: #1e429f;
    padding: 0.75rem 1.5rem;
    border-radius: 30px;
    font-weight: 700;
    font-size: 1rem;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* About 页面统计数字 */
.about-hero .hero-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;  /* 统一上边距 */
    flex-wrap: wrap;
}

.about-hero .stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
    color: #4dc0ff;
}

.about-hero .stat-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
    margin-top: 0.5rem;
}

/* Company Introduction */
.company-intro {
    padding: 6rem 0;
    background: #f8fafc;
}

.section-header {
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: #1e293b;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: #4dc0ff;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
}

.intro-content {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

.intro-text h3 {
    font-size: 2rem;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.intro-text p {
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.achievements {
    margin-top: 2rem;
}

.achievement-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.achievement-item i {
    color: #4dc0ff;
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.achievement-item h4 {
    color: #1e293b;
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
}

.achievement-item p {
    color: #64748b;
    margin: 0;
    font-size: 0.95rem;
}

.intro-image {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    height: 100%;
}

.intro-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    padding: 2rem;
}

.overlay-content h4 {
    color: white;
    margin-bottom: 0.5rem;
}

.overlay-content p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    font-size: 0.95rem;
}

/* Mission & Vision */
.mission-vision-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.mission-card, .vision-card {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    height: 100%;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.mission-card:hover, .vision-card:hover {
    transform: translateY(-10px);
}

.card-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #4dc0ff 0%, #3498db 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
}

.card-icon i {
    color: white;
    font-size: 2rem;
}

.mission-card h3, .vision-card h3 {
    color: #1e293b;
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.mission-card p, .vision-card p {
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.mission-points {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mission-points li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: #475569;
}

.mission-points li i {
    color: #10b981;
    margin-top: 0.25rem;
}

.vision-goals {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.goal-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 10px;
    border-left: 4px solid #4dc0ff;
}

.goal-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: #4dc0ff;
    min-width: 60px;
}

.goal-text {
    color: #475569;
    font-weight: 500;
}

/* Core Values */
.values-section {
    padding: 6rem 0;
    background: white;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.value-item {
    background: #f8fafc;
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.value-item:hover {
    border-color: #4dc0ff;
    background: white;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.value-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: white;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: #4dc0ff;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.value-item:hover .value-icon {
    transform: scale(1.1) rotate(5deg);
    background: #4dc0ff;
    color: white;
}

.value-item h3 {
    color: #1e293b;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.value-item p {
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.value-stats {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.value-stats .stat {
    text-align: center;
}

.value-stats .number {
    display: block;
    font-size: 1.75rem;
    font-weight: 800;
    color: #4dc0ff;
    line-height: 1;
}

.value-stats .label {
    font-size: 0.8rem;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 0.25rem;
}

/* Timeline */
.timeline-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: white;
}

.timeline-section .section-title,
.timeline-section .section-subtitle {
    color: white;
}

.timeline-section .section-subtitle {
    opacity: 0.8;
}

.timeline {
    position: relative;
    max-width: 1200px;
    margin: 4rem auto 0;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background: #4dc0ff;
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    box-sizing: border-box;
}

.timeline-item::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: #4dc0ff;
    border: 4px solid #0f172a;
    top: 15px;
    border-radius: 50%;
    z-index: 1;
}

.left {
    left: 0;
}

.right {
    left: 50%;
}

.left::after {
    right: -12px;
}

.right::after {
    left: -12px;
}

.timeline-content {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.timeline-content:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.timeline-year {
    font-size: 3rem;
    font-weight: 800;
    color: #4dc0ff;
    margin-bottom: 0.5rem;
    line-height: 1;
}

.timeline-content h4 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: white;
}

.timeline-content p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1rem;
}

.timeline-milestone {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

.timeline-milestone i {
    color: #4dc0ff;
}

/* Facilities & Capabilities */
.facilities-section {
    padding: 6rem 0;
    background: #f8fafc;
}

.facilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.facility-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.facility-card:hover {
    transform: translateY(-10px);
}

.facility-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

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

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

.facility-overlay {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(77, 192, 255, 0.95);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.9rem;
}

.facility-content {
    padding: 2rem;
}

.facility-content h3 {
    color: #1e293b;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.facility-content ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.facility-content ul li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: #64748b;
    font-size: 0.95rem;
}

.facility-content ul li i {
    color: #4dc0ff;
    margin-top: 0.25rem;
}

.production-stats {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
}

.production-stat {
    text-align: center;
    padding: 1.5rem;
}

.production-stat:hover .stat-icon {
    transform: scale(1.1);
}

.stat-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, #4dc0ff 0%, #3498db 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
    transition: transform 0.3s ease;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: #1e293b;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #64748b;
    font-size: 0.95rem;
}

/* Certifications */
.certifications-section {
    padding: 6rem 0;
    background: white;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.certification-item {
    text-align: center;
    padding: 2rem;
    background: #f8fafc;
    border-radius: 15px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.certification-item:hover {
    border-color: #4dc0ff;
    background: white;
    transform: translateY(-5px);
}

.cert-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: white;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.cert-icon img {
    max-width: 100%;
    max-height: 100%;
}

.certification-item h4 {
    color: #1e293b;
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.certification-item p {
    color: #64748b;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.cert-year {
    font-size: 0.8rem;
    color: #94a3b8;
    font-weight: 500;
}

/* Leadership Team */
.leadership-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.leadership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.leader-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.leader-card:hover {
    transform: translateY(-10px);
}

.leader-image {
    position: relative;
    height: 300px;
    overflow: hidden;
}

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

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

.leader-social {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    gap: 0.5rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.leader-card:hover .leader-social {
    opacity: 1;
}

.leader-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1e293b;
    text-decoration: none;
    transition: all 0.3s ease;
}

.leader-social a:hover {
    background: #4dc0ff;
    color: white;
    transform: scale(1.1);
}

.leader-info {
    padding: 2rem;
}

.leader-info h3 {
    color: #1e293b;
    margin-bottom: 0.25rem;
    font-size: 1.5rem;
}

.leader-title {
    color: #4dc0ff;
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1rem;
}

.leader-bio {
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.leader-expertise {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.expertise-tag {
    background: #f1f5f9;
    color: #475569;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Global Presence */
.global-section {
    padding: 6rem 0;
    background: white;
}

.map-container {
    position: relative;
    height: 400px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 3rem;
}

.map-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.location-marker {
    position: absolute;
    cursor: pointer;
    transition: all 0.3s ease;
}

.location-marker:hover {
    transform: scale(1.2);
}

.location-marker.europe {
    top: 40%;
    left: 50%;
}

.location-marker.usa {
    top: 45%;
    left: 25%;
}

.location-marker.japan {
    top: 45%;
    left: 75%;
}

.marker-dot {
    width: 12px;
    height: 12px;
    background: #4dc0ff;
    border: 3px solid white;
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(77, 192, 255, 0.3);
}

.marker-label {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    color: #1e293b;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.location-marker:hover .marker-label {
    opacity: 1;
}

.global-stats {
    background: #f8fafc;
    border-radius: 20px;
    padding: 2rem;
}

.global-stat {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.global-stat .stat-icon {
    width: 60px;
    height: 60px;
    background: #4dc0ff;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.stat-content h4 {
    color: #1e293b;
    margin-bottom: 0.25rem;
    font-size: 1.25rem;
}

.stat-content p {
    color: #64748b;
    margin: 0;
    font-size: 0.9rem;
}

/* CTA Section */
.about-cta {
    background: linear-gradient(135deg, #1e429f 0%, #0a2a5f 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
}

.about-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 800;
}

.about-cta p {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn {
    padding: 1rem 2rem;
    font-size: 1.125rem;
    border-radius: 50px;
    font-weight: 600;
}

.cta-buttons .btn-light {
    background: white;
    color: #1e429f;
    border: none;
}

.cta-buttons .btn-light:hover {
    background: #f8fafc;
    transform: translateY(-2px);
}

.cta-buttons .btn-outline-light {
    border: 2px solid white;
    background: transparent;
}

.cta-buttons .btn-outline-light:hover {
    background: white;
    color: #1e429f;
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 1199.98px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .timeline-item {
        width: 100%;
        left: 0;
        padding-left: 70px;
        padding-right: 25px;
    }
    
    .timeline-item::after {
        left: 30px;
    }
    
    .timeline::after {
        left: 30px;
    }
    
    .left::after, .right::after {
        left: 18px;
    }
}

@media (max-width: 991.98px) {
    .about-hero {
        padding: 4rem 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .facilities-grid {
        grid-template-columns: 1fr;
    }
    
    .leadership-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767.98px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .intro-content {
        padding: 1.5rem;
    }
    
    .mission-card, .vision-card {
        padding: 2rem;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .leadership-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 575.98px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .timeline-item {
        padding-left: 50px;
    }
    
    .timeline::after {
        left: 20px;
    }
    
    .timeline-item::after {
        left: 10px;
    }
}