/* 关于我们页面样式 */

/* 页面标题区域 - 现在用于显示平台简介 */
.page-header {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 50%, #42a5f5 100%);
    color: white;
    padding: 120px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    animation: float 6s ease-in-out infinite;
}

.page-header::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    opacity: 0.3;
    animation: drift 20s linear infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

@keyframes drift {
    0% { transform: translateX(0px); }
    100% { transform: translateX(-20px); }
}

.page-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin: 0 0 15px 0;
    position: relative;
    z-index: 2;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    animation: slideInUp 1s ease-out;
    background: linear-gradient(45deg, #fff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    font-size: 1.4rem;
    opacity: 0.95;
    margin: 0;
    position: relative;
    z-index: 2;
    font-weight: 300;
    letter-spacing: 1px;
    animation: slideInUp 1s ease-out 0.2s both;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 添加装饰性元素 */
.page-header .container {
    position: relative;
    z-index: 2;
}

.page-header .container::before {
    content: '';
    position: absolute;
    top: -50px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, transparent, #fff, transparent);
    border-radius: 2px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: translateX(-50%) scaleX(1); }
    50% { opacity: 0.8; transform: translateX(-50%) scaleX(1.2); }
}

/* 关于我们页面主体 */
.about-page {
    min-height: 100vh;
}

.about-section {
    padding: 80px 0;
}

.about-section.bg-light {
    background-color: #f8f9fa;
}

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

/* 章节标题 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin: 0 0 20px 0;
    position: relative;
}

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #3498db 0%, #1e88e5 100%);
    margin: 0 auto;
    border-radius: 2px;
}

/* 平台简介样式 */
.company-intro {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 80px;
    align-items: start;
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
}

.intro-content {
    font-size: 1.2rem;
    line-height: 1.9;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    position: relative;
}

.intro-text {
    text-indent: 2em;
    margin-bottom: 1.5rem;
}

.intro-content::before {
    content: '';
    position: absolute;
    left: -30px;
    top: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, #3498db 0%, #1e88e5 100%);
    border-radius: 2px;
}

.intro-text {
    margin-bottom: 30px;
    text-align: justify;
    position: relative;
    padding-left: 20px;
    animation: fadeInLeft 0.8s ease-out;
}

.intro-text:first-child {
    animation-delay: 0.2s;
}

.intro-text:last-child {
    animation-delay: 0.4s;
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.intro-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    position: relative;
}

.intro-stats::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #3498db, #1e88e5);
    border-radius: 2px;
}

.stat-item {
    text-align: center;
    padding: 35px 25px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    box-shadow: 
        0 8px 32px rgba(0,0,0,0.2),
        0 2px 8px rgba(0,0,0,0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3498db, #1e88e5);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.stat-item:hover::before {
    transform: scaleX(1);
}

.stat-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 20px 40px rgba(0,0,0,0.15),
        0 8px 16px rgba(0,0,0,0.1);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    margin-bottom: 12px;
    position: relative;
    animation: countUp 1s ease-out;
}

.stat-number::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, #3498db, #1e88e5);
    border-radius: 1px;
}

@keyframes countUp {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.stat-label {
    font-size: 1.1rem;
    color: white;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

/* 愿景使命样式 */
.vision-mission-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    position: relative;
}

.vision-mission-content::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 2px;
    height: 80%;
    background: linear-gradient(180deg, transparent, #3498db, transparent);
    opacity: 0.3;
}

.vision-card, .mission-card {
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    padding: 50px 40px;
    border-radius: 24px;
    box-shadow: 
        0 10px 40px rgba(0,0,0,0.1),
        0 4px 16px rgba(0,0,0,0.05);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 107, 53, 0.1);
}

.vision-card::before, .mission-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0%, rgba(247, 147, 30, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.vision-card:hover::before, .mission-card:hover::before {
    opacity: 1;
}

.vision-card:hover, .mission-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 
        0 20px 60px rgba(0,0,0,0.15),
        0 8px 24px rgba(0,0,0,0.1);
}

.card-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #3498db 0%, #1e88e5 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    position: relative;
    box-shadow: 0 8px 24px rgba(255, 107, 53, 0.3);
    transition: all 0.3s ease;
}

.card-icon::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    background: linear-gradient(135deg, #3498db, #1e88e5);
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.vision-card:hover .card-icon::before,
.mission-card:hover .card-icon::before {
    opacity: 0.3;
}

.vision-card:hover .card-icon,
.mission-card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
}

.card-icon i {
    font-size: 2.5rem;
    color: white;
    text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.vision-card h3, .mission-card h3 {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #333 0%, #666 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 25px 0;
    position: relative;
}

.vision-card h3::after, .mission-card h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, #3498db, #1e88e5);
    border-radius: 2px;
}

.vision-card p, .mission-card p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #555;
    margin: 0;
    position: relative;
    z-index: 1;
}

/* 团队介绍样式 */
.team-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
    position: relative;
}

.team-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, transparent, #3498db, transparent);
    opacity: 0.2;
}

.team-features {
    display: flex;
    flex-direction: column;
    gap: 35px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 25px;
    padding: 35px 30px;
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 20px;
    box-shadow: 
        0 8px 32px rgba(0,0,0,0.1),
        0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 107, 53, 0.1);
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, #3498db 0%, #1e88e5 100%);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.feature-item:hover::before {
    transform: scaleY(1);
}

.feature-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 20px 40px rgba(0,0,0,0.15),
        0 8px 16px rgba(0,0,0,0.1);
}

.feature-item i {
    font-size: 2.5rem;
    background: linear-gradient(135deg, #3498db 0%, #1e88e5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: 8px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.feature-item:hover i {
    transform: scale(1.1) rotate(5deg);
}

.feature-item h4 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #333;
    margin: 0 0 15px 0;
    position: relative;
}

.feature-item h4::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, #3498db, #1e88e5);
    border-radius: 1px;
}

.feature-item p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: #555;
    margin: 0;
}

.team-stats {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.team-stat {
    text-align: center;
    padding: 40px 30px;
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 20px;
    box-shadow: 
        0 8px 32px rgba(0,0,0,0.1),
        0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 107, 53, 0.1);
}

.team-stat::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3498db, #1e88e5);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.team-stat:hover::before {
    transform: scaleX(1);
}

.team-stat:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 20px 40px rgba(0,0,0,0.15),
        0 8px 16px rgba(0,0,0,0.1);
}

.team-stat .stat-number {
    font-size: 2.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #3498db 0%, #1e88e5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    position: relative;
    animation: countUp 1s ease-out;
}

.team-stat .stat-number::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, #3498db, #1e88e5);
    border-radius: 2px;
}

.team-stat .stat-label {
    font-size: 1.2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.team-stat .stat-desc {
    font-size: 1rem;
    color: #666;
    line-height: 1.5;
}

/* 荣誉资质样式 */
.honors-content {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.honors-content::before {
    content: '';
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #3498db, #1e88e5);
    border-radius: 2px;
}

.honors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 35px;
}

.honor-item {
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: 
        0 8px 32px rgba(0,0,0,0.1),
        0 2px 8px rgba(0,0,0,0.05);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 107, 53, 0.1);
}

.honor-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0%, rgba(247, 147, 30, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.honor-item:hover::before {
    opacity: 1;
}

.honor-item:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 
        0 20px 60px rgba(0,0,0,0.15),
        0 8px 24px rgba(0,0,0,0.1);
}

.honor-icon {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #3498db 0%, #1e88e5 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    position: relative;
    box-shadow: 0 8px 24px rgba(255, 107, 53, 0.3);
    transition: all 0.3s ease;
}

.honor-icon::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    background: linear-gradient(135deg, #3498db, #1e88e5);
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.honor-item:hover .honor-icon::before {
    opacity: 0.3;
}

.honor-item:hover .honor-icon {
    transform: scale(1.1) rotate(10deg);
}

.honor-icon i {
    font-size: 2rem;
    color: white;
    text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.honor-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 50%;
    background: white;
    padding: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.honor-item h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: #333;
    margin: 0;
    line-height: 1.5;
    position: relative;
    z-index: 1;
}

/* 全球网络样式 */
.global-content {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.global-content::before {
    content: '';
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #3498db, #1e88e5);
    border-radius: 2px;
}

.global-intro {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.global-intro h3 {
    font-size: 2.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #333 0%, #666 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 20px 0;
    position: relative;
}

.global-intro h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #3498db, #1e88e5);
    border-radius: 2px;
}

.global-intro p {
    font-size: 1.2rem;
    color: #666;
    margin: 0 0 40px 0;
    line-height: 1.6;
}

.global-network-image {
    margin: 40px 0;
    text-align: center;
}

.network-coverage-img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.network-coverage-img:hover {
    transform: scale(1.02);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.countries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 25px;
}

.country-item {
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    padding: 25px 20px;
    border-radius: 16px;
    box-shadow: 
        0 6px 24px rgba(0,0,0,0.1),
        0 2px 8px rgba(0,0,0,0.05);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 107, 53, 0.1);
}

.country-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0%, rgba(247, 147, 30, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.country-item:hover::before {
    opacity: 1;
}

.country-item:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 
        0 15px 40px rgba(0,0,0,0.15),
        0 6px 16px rgba(0,0,0,0.1);
}

.country-item i {
    background: linear-gradient(135deg, #3498db 0%, #1e88e5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.country-item:hover i {
    transform: scale(1.2) rotate(5deg);
}

.country-item span {
    font-weight: 600;
    color: #333;
    font-size: 1.1rem;
    position: relative;
    z-index: 1;
}

/* 联系我们样式 */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
    position: relative;
}

.contact-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, transparent, #3498db, transparent);
    opacity: 0.2;
}

.contact-content .contact-info {
    display: flex;
    flex-direction: column;
    gap: 35px;
}

.contact-content .contact-item {
    display: flex;
    align-items: center;
    gap: 25px;
    padding: 35px 30px;
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 20px;
    box-shadow: 
        0 8px 32px rgba(0,0,0,0.1),
        0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 107, 53, 0.1);
}

.contact-content .contact-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, #3498db 0%, #1e88e5 100%);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.contact-content .contact-item:hover::before {
    transform: scaleY(1);
}

.contact-content .contact-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 20px 40px rgba(0,0,0,0.15),
        0 8px 16px rgba(0,0,0,0.1);
}

.contact-content .contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3498db 0%, #1e88e5 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.3);
    transition: all 0.3s ease;
}

.contact-content .contact-item:hover .contact-icon {
    transform: scale(1.1) rotate(5deg);
}

.contact-content .contact-icon i {
    font-size: 1.4rem;
    color: white;
    text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.contact-content .contact-details {
    text-align: left;
}

.contact-content .contact-details h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: #333;
    margin: 0 0 8px 0;
    position: relative;
    text-align: left;
}

.contact-content .contact-details h4::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 25px;
    height: 2px;
    background: linear-gradient(90deg, #3498db, #1e88e5);
    border-radius: 1px;
}

.contact-content .contact-details p {
    font-size: 1.05rem;
    color: #666;
    margin: 0;
    line-height: 1.5;
    text-align: left;
}

/* 关于我们页面二维码样式 */
.contact-content .contact-details .qr-code {
    margin-top: 15px;
    text-align: left;
}

.contact-content .contact-details .qr-image {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    object-fit: cover;
    border: 2px solid #e9ecef;
    transition: transform 0.3s ease;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.contact-content .contact-details .qr-image:hover {
    transform: scale(1.05);
    border-color: #3498db;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.contact-form {
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    padding: 50px 40px;
    border-radius: 24px;
    box-shadow: 
        0 10px 40px rgba(0,0,0,0.1),
        0 4px 16px rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 107, 53, 0.1);
}

.contact-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.02) 0%, rgba(247, 147, 30, 0.02) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.contact-form:hover::before {
    opacity: 1;
}

.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #333 0%, #666 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 40px 0;
    text-align: center;
    position: relative;
    z-index: 1;
}

.contact-form h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, #3498db, #1e88e5);
    border-radius: 2px;
}

.contact-form-content {
    display: flex;
    flex-direction: column;
    gap: 25px;
    position: relative;
    z-index: 1;
}

.form-group {
    display: flex;
    flex-direction: column;
    position: relative;
}

.form-group input,
.form-group textarea {
    padding: 18px 20px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    font-size: 1.05rem;
    transition: all 0.3s ease;
    font-family: inherit;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
    transform: translateY(-2px);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-btn {
    background: linear-gradient(135deg, #3498db 0%, #1e88e5 100%);
    color: white;
    border: none;
    padding: 18px 40px;
    border-radius: 12px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 15px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.3);
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.submit-btn:hover::before {
    left: 100%;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(255, 107, 53, 0.4);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .page-title {
        font-size: 2.2rem;
    }
    
    .page-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-section {
        padding: 60px 0;
    }
    
    .company-intro {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .intro-stats {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    
    .vision-mission-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .team-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-page .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .countries-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 15px;
    }
    
    .global-network-image {
        margin: 30px 0;
    }
    
    .network-coverage-img {
        border-radius: 8px;
    }
    
    .honors-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .honor-icon {
        width: 100px;
        height: 100px;
    }
}

@media (max-width: 480px) {
    .page-header {
        padding: 60px 0 40px;
    }
    
    .page-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .about-section {
        padding: 40px 0;
    }
    
    .intro-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-item {
        padding: 20px 15px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .vision-card, .mission-card {
        padding: 30px 20px;
    }
    
    .about-page .contact-form {
        padding: 30px 20px;
    }
    
    .honor-icon {
        width: 80px;
        height: 80px;
    }
    
    .global-network-image {
        margin: 20px 0;
    }
    
    .network-coverage-img {
        border-radius: 6px;
    }
}

/* 导航栏激活状态 */
.nav-link.active {
    color: #3498db;
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}