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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    color: #323233;
}
.nav-logo span {
    color: #5c6268;
}

.nav-logo i {
    margin-right: 10px;
    color: #3498db;
    font-size: 28px;
}

.nav-logo img {
    height: 5px;
    width: 5px;
    margin-right: 20px;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    list-style: none;
}

.nav-menu li {
    margin-left: 30px;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #3498db;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #3498db;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: all 0.3s ease;
}

.hero {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    /* background: #002fa7; 克莱因蓝 */
background: linear-gradient(180deg, rgba(0,113,227,0.25) 0%, rgba(0,113,227,0.24) 8%, rgba(0,113,227,0.23) 16%, rgba(0,113,227,0.22) 24%, rgba(0,113,227,0.22) 32%, rgba(0,113,227,0.20) 40%, rgba(0,113,227,0.18) 48%, rgba(0,113,227,0.16) 56%, rgba(0,113,227,0.14) 64%, rgba(0,113,227,0.12) 72%, rgba(0,113,227,0.10) 80%, rgba(0,113,227,0.08) 88%, rgba(0,113,227,0.06) 92%, rgba(0,113,227,0.04) 96%, rgba(0,113,227,0.02) 98%, rgba(0,113,227,0) 100%);/* 更淡更慢渐变 */
   
    position: relative;
    overflow: hidden;
    padding-top: 70px;
}

.hero-content {
    text-align: center;
    z-index: 2;
    color: #fff;
    max-width: 1200px;
    padding: 0 40px;
    width: 90%;
}

.hero-title {
    font-size: 62px;
    font-weight: 800;
    margin-bottom: 30px;
    color: #464545;
    background: #525151;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
    line-height: 1.2;
    animation: titleGlow 3s ease-in-out infinite;
}

@keyframes titleGlow {
    0%, 100% {
        filter: drop-shadow(0 2px 10px rgb(79, 78, 78));
    }
    50% {
        filter: drop-shadow(0 4px 20px rgb(122, 121, 121));
    }
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 18px;
    opacity: 0.95;
    line-height: 1.8;
    letter-spacing: 1px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    color: #000;
    white-space: nowrap;
}

.hero-subtitle:nth-of-type(2) {
    margin-bottom: 18px;
}

.hero-subtitle:last-of-type {
    margin-bottom: 50px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.btn-primary {
    background: #fff;
    color: #667eea;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #0071e3;
    border: 1px solid #0071e3;
    font-weight: 400;
}

.btn-secondary:hover {
    background: #0071e3;
    color: #fff;
}

.btn-sm {
    padding: 10px 25px;
    font-size: 14px;
}

.btn-full {
    width: 100%;
}

.btn-large {
    padding: 20px 60px;
    font-size: 18px;
}

.hero-visual {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
}

.floating-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.3;
}

.circle-1 {
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.2);
    top: 10%;
    right: 10%;
    animation: float 6s ease-in-out infinite;
}

.circle-2 {
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.15);
    bottom: 20%;
    left: 15%;
    animation: float 8s ease-in-out infinite reverse;
}

.circle-3 {
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    top: 50%;
    left: 50%;
    animation: float 5s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(10deg); }
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 60px;
    color: #2c3e50;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 2px;
}

.features {
    padding: 100px 0;
    background: #f8f9fa;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 32px;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.feature-card p {
    color: #666;
    font-size: 14px;
}

.products-preview, .services-preview {
    padding: 60px 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.product-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.product-image {
    height: 200px;
    overflow: hidden;
}

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

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

.product-info {
    padding: 25px;
}

.product-info h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.product-info p {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
}

.product-price {
    font-size: 24px;
    font-weight: bold;
    color: #667eea;
    margin-bottom: 15px;
}

.services-preview .services-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 20px;
}

.services-preview .service-card {
    perspective: 1000px;
}

.services-preview .service-card:nth-child(1) {
    grid-column: span 4;
}

.services-preview .service-card:nth-child(2) {
    grid-column: span 4;
}

.services-preview .service-card:nth-child(3) {
    grid-column: span 4;
}

.services-preview .service-card:nth-child(4) {
    grid-column: 1 / span 3;
}

.services-preview .service-card:nth-child(5) {
    grid-column: span 3;
}

.services-preview .service-card:nth-child(6) {
    grid-column: span 3;
}

.services-preview .service-card:nth-child(7) {
    grid-column: span 3;
}

.services-preview .flip-card-inner {
    position: relative;
    width: 100%;
    height: 180px;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.services-preview .service-card:hover .flip-card-inner {
    transform: rotateY(180deg);
}

.services-preview .flip-card-front, .services-preview .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.services-preview .flip-card-front {
    background: linear-gradient(135deg, #e3f2fd 0%, #90caf9 20%, #42a5f5 40%, #2196f3 60%, #1976d2 80%, #0d47a1 100%);
    color: #fff;
    box-shadow: 0 4px 15px rgba(13, 71, 161, 0.3);
}

.services-preview .flip-card-front h3 {
    font-size: 15px;
    text-align: center;
    margin: 0;
}

.services-preview .flip-card-back {
    background: #fff;
    color: #333;
    transform: rotateY(180deg);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.services-preview .service-icon {
    font-size: 36px;
    margin-bottom: 10px;
}

.services-preview .flip-card-back p {
    text-align: center;
    font-size: 12px;
    margin-bottom: 15px;
    line-height: 1.5;
}

.about-preview {
    padding: 100px 0;
    background: #f8f9fa;
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.about-content h2 {
    font-size: 32px;
    margin-bottom: 20px;
    color: #2c3e50;
}

.about-content p {
    font-size: 16px;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.8;
}

.cta {
    padding: 100px 0;
    background: linear-gradient(180deg, rgba(0,113,227,0) 0%, rgba(0,113,227,0.02) 2%, rgba(0,113,227,0.04) 4%, rgba(0,113,227,0.06) 8%, rgba(0,113,227,0.08) 12%, rgba(0,113,227,0.10) 20%, rgba(0,113,227,0.12) 28%, rgba(0,113,227,0.14) 36%, rgba(0,113,227,0.16) 44%, rgba(0,113,227,0.18) 52%, rgba(0,113,227,0.20) 60%, rgba(0,113,227,0.22) 68%, rgba(0,113,227,0.22) 76%, rgba(0,113,227,0.23) 84%, rgba(0,113,227,0.24) 92%, rgba(0,113,227,0.25) 100%);
    text-align: center;
    color: #fff;
}

.cta-title {
    font-size: 40px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #000000 0%, #2a2a2a 25%, #4a4a4a 50%, #6a6a6a 75%, #8a8a8a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-text {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
    color: #000;
}

.footer {
    background: linear-gradient(180deg, #0d47a1 0%, #1565c0 30%, #1976d2 60%, #1a3a6b 100%);
    color: #fff;
    padding: 50px 0 20px;
}

.footer-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 50px;
    display: flex;
    gap: 40px;
    margin-bottom: 30px;
    align-items: stretch;
}

.footer-left {
    flex: 1.3;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    padding: 28px;
    backdrop-filter: blur(8px);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.footer-left:hover {
    border-color: rgba(100, 181, 246, 0.4);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.footer-left .section-title {
    color: #fff;
    margin-bottom: 20px;
    text-align: left;
    font-size: 22px;
}

.footer-left .section-title::after {
    left: 0;
    transform: none;
    background: linear-gradient(135deg, #64b5f6, #1976d2);
}

.footer-right {
    flex: 1;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    padding: 28px;
    backdrop-filter: blur(8px);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.footer-right:hover {
    border-color: rgba(100, 181, 246, 0.4);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.footer-right h3 {
    margin-bottom: 20px;
    color: #fff;
    font-size: 18px;
    position: relative;
    padding-bottom: 12px;
    display: inline-block;
}

.footer-right h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: linear-gradient(135deg, #64b5f6, #1976d2);
    border-radius: 2px;
}

.footer-right p {
    color: #b0b8d0;
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 25px;
}

.footer-right i {
    margin-right: 10px;
    color: #64b5f6;
}

.footer-qrcodes {
    display: flex;
    gap: 30px;
    margin-top: 20px;
}

.footer-qrcode-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.footer-qrcode-item img {
    width: 100px;
    height: 100px;
    border-radius: 12px;
    background: #fff;
    padding: 6px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.footer-qrcode-item img:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 25px rgba(25, 118, 210, 0.4);
}

.footer-qrcode-item span {
    color: #b0b8d0;
    font-size: 13px;
}

.footer-bottom {
    text-align: center;
    padding-top: 25px;
    border-top: 1px solid rgba(100, 181, 246, 0.3);
    color: #b3d4fc;
    font-size: 13px;
}

.page-header {
    padding: 150px 0 80px;
    background: linear-gradient(180deg, rgba(0,113,227,0.25) 0%, rgba(0,113,227,0.24) 8%, rgba(0,113,227,0.23) 16%, rgba(0,113,227,0.22) 24%, rgba(0,113,227,0.22) 32%, rgba(0,113,227,0.20) 40%, rgba(0,113,227,0.18) 48%, rgba(0,113,227,0.16) 56%, rgba(0,113,227,0.14) 64%, rgba(0,113,227,0.12) 72%, rgba(0,113,227,0.10) 80%, rgba(0,113,227,0.08) 88%, rgba(0,113,227,0.06) 92%, rgba(0,113,227,0.04) 96%, rgba(0,113,227,0.02) 98%, rgba(0,113,227,0) 100%);
    text-align: center;
    color: #fff;
}

.page-title {
    font-size: 48px;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #000000 0%, #2a2a2a 25%, #4a4a4a 50%, #6a6a6a 75%, #8a8a8a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    font-size: 20px;
    opacity: 0.9;
    color: #000;
}

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

.about-main h2 {
    font-size: 32px;
    margin-bottom: 25px;
    color: #2c3e50;
}

.about-main p {
    font-size: 16px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.8;
}

.stats-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

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

.stat-number {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 16px;
    opacity: 0.8;
}

.team-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.team-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
}

.team-image {
    height: 250px;
    overflow: hidden;
}

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

.team-info {
    padding: 25px;
}

.team-info h3 {
    font-size: 20px;
    margin-bottom: 8px;
    color: #2c3e50;
}

.team-position {
    color: #667eea;
    font-weight: 600;
    margin-bottom: 15px;
}

.team-bio {
    color: #666;
    font-size: 14px;
}

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

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.value-card {
    text-align: center;
    padding: 40px 20px;
    background: #f8f9fa;
    border-radius: 15px;
}

.value-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 24px;
}

.value-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.value-card p {
    color: #666;
    font-size: 14px;
}

.products-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.product-card-large {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

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

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

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

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card-large:hover .product-overlay {
    opacity: 1;
}

.product-details {
    padding: 30px;
}

.product-details h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.product-details p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.8;
}

.product-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product-meta .price {
    font-size: 28px;
    font-weight: bold;
    color: #667eea;
}

.product-meta .date {
    color: #999;
    font-size: 14px;
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 40px;
    background: #fff;
    border-radius: 15px;
}

.empty-state i {
    font-size: 64px;
    color: #ccc;
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 24px;
    margin-bottom: 10px;
    color: #333;
}

.empty-state p {
    color: #666;
}

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

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
}

.category-card {
    background: #f8f9fa;
    padding: 30px 20px;
    border-radius: 10px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-card i {
    font-size: 32px;
    margin-bottom: 15px;
    color: #666;
    transition: color 0.3s ease;
}

.category-card span {
    color: #333;
    font-weight: 500;
}

.category-card:hover, .category-card.active {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.category-card:hover i, .category-card.active i {
    color: #fff;
}

.category-card:hover span, .category-card.active span {
    color: #fff;
}

.features-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.feature-number {
    font-size: 48px;
    font-weight: bold;
    color: #667eea;
    opacity: 0.3;
}

.feature-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.feature-content p {
    color: #666;
    font-size: 14px;
}

.services-section {
    padding: 40px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
}

.services-section .container {
    max-width: 1400px;
}

.services-section .services-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 20px;
}

.services-section .service-card-large:nth-child(1) {
    grid-column: span 4;
}

.services-section .service-card-large:nth-child(2) {
    grid-column: span 4;
}

.services-section .service-card-large:nth-child(3) {
    grid-column: span 4;
}

.services-section .service-card-large:nth-child(4) {
    grid-column: span 3;
    transform: translateX(10px);
}

.services-section .service-card-large:nth-child(5) {
    grid-column: span 3;
}

.services-section .service-card-large:nth-child(6) {
    grid-column: span 3;
}

.services-section .service-card-large:nth-child(7) {
    grid-column: span 3;
}

.services-section .service-card-large {
    background: #fff;
    padding: 25px 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.services-section .service-card-large::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.services-section .service-card-large:hover::before {
    transform: scaleX(1);
}

.services-section .service-card-large:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.18);
}

.services-section .service-icon-large {
    width: 70px;
    height: 70px;
    margin: 0 auto 15px;
    background: #fff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 30px;
    transition: all 0.4s ease;
    position: relative;
    box-shadow: 0 4px 12px rgba(0, 113, 227, 0.12);
    overflow: hidden;
}

.services-section .service-icon-large::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.15), rgba(13, 71, 161, 0.15));
    transform: scale(0);
    transition: transform 0.4s ease;
    z-index: 0;
}

.services-section .service-card-large:hover .service-icon-large {
    transform: scale(1.08);
    box-shadow: 0 6px 20px rgba(0, 113, 227, 0.2);
}

.services-section .service-card-large:hover .service-icon-large::after {
    transform: scale(1);
}

.services-section .service-logo-img {
    width: 55px;
    height: 55px;
    object-fit: contain;
    border-radius: 50%;
    position: relative;
    z-index: 1;
    display: block;
}

.services-section .service-card-large h3 {
    font-size: 16px;
    margin-bottom: 12px;
    color: #2c3e50;
    font-weight: 700;
    position: relative;
}

.services-section .service-card-large p {
    color: #666;
    margin-bottom: 15px;
    line-height: 1.6;
    font-size: 13px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.services-section .service-features {
    list-style: none;
    margin-bottom: 15px;
    text-align: left;
    padding-left: 10px;
}

.services-section .service-features li {
    padding: 4px 0;
    color: #555;
    font-size: 12px;
    position: relative;
    transition: all 0.3s ease;
}

.services-section .service-features li::before {
    content: '';
    position: absolute;
    left: -15px;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.services-section .service-features li i {
    color: #667eea;
    margin-right: 8px;
    font-size: 12px;
}

.services-section .service-card-large .btn-primary {
    background: linear-gradient(135deg, #e3f2fd 0%, #90caf9 20%, #42a5f5 40%, #2196f3 60%, #1976d2 80%, #0d47a1 100%);
    color: #fff;
    border-radius: 50px;
    padding: 8px 24px;
    font-weight: 600;
    font-size: 13px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(13, 71, 161, 0.3);
}

.services-section .service-card-large .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(13, 71, 161, 0.4);
}

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

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.support-card {
    background: #f8f9fa;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
}

.support-card i {
    font-size: 40px;
    margin-bottom: 20px;
    color: #667eea;
}

.support-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.support-card p {
    color: #666;
    font-size: 14px;
    margin-bottom: 20px;
}

.faq-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: #fff;
    border-radius: 10px;
    margin-bottom: 15px;
    overflow: hidden;
}

.faq-question {
    padding: 25px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    color: #2c3e50;
    font-weight: 500;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: #f8f9fa;
}

.faq-question i {
    transition: transform 0.3s ease;
    color: #667eea;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 25px 30px;
    max-height: 200px;
}

.faq-answer p {
    color: #666;
    line-height: 1.8;
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 32px;
    margin-bottom: 40px;
    color: #2c3e50;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-item i {
    font-size: 28px;
    color: #667eea;
    width: 50px;
    height: 50px;
    background: #f0f4ff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.contact-item h3 {
    font-size: 18px;
    margin-bottom: 5px;
    color: #2c3e50;
}

.contact-item p {
    color: #666;
    font-size: 14px;
}

.contact-form h2 {
    font-size: 32px;
    margin-bottom: 40px;
    color: #2c3e50;
}

.qrcode-container {
    display: flex;
    gap: 50px;
    justify-content: center;
    align-items: flex-start;
    flex-wrap: wrap;
    margin-top: 80px;
}

.qrcode-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.qrcode-item span {
    font-size: 15px;
    color: #555;
    font-weight: 600;
    letter-spacing: 1px;
}

.qrcode-image {
    width: 180px;
    height: 180px;
    object-fit: contain;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    background: #fff;
    padding: 8px;
}

.qrcode-image:hover {
    transform: scale(1.08) translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: #333;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

.form-group textarea {
    resize: vertical;
}

.map-section {
    padding: 80px 0;
    background: transparent;
}

.map-container {
    height: 350px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.map-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #fff;
}

.map-placeholder i {
    font-size: 64px;
    margin-bottom: 20px;
}

.map-placeholder p {
    font-size: 18px;
}

.social-section {
    padding: 60px 0;
    text-align: center;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
}

.social-link {
    width: 60px;
    height: 60px;
    background: #f8f9fa;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #666;
    font-size: 24px;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    transform: translateY(-5px);
}

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

@keyframes slideUp {
    from { opacity: 0; transform: translateY(50px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideLeft {
    from { opacity: 0; transform: translateX(-50px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideRight {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes zoomIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

.fade-in {
    animation: fadeIn 1s ease-out;
}

.slide-up {
    animation: slideUp 1s ease-out 0.3s both;
}

.slide-left {
    animation: slideLeft 1s ease-out;
}

.slide-right {
    animation: slideRight 1s ease-out;
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}

.bounce {
    animation: bounce 2s ease-in-out infinite;
}

.zoom-in {
    animation: zoomIn 0.6s ease-out;
}

.hover-lift:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* ===== 项目案例页面样式 ===== */
.cases-filter-section {
    padding: 40px 0 0;
    background: #f8f9fa;
}

.cases-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 30px;
    border: 2px solid #e0e0e0;
    border-radius: 50px;
    background: #fff;
    color: #333;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    border-color: #667eea;
    color: #667eea;
}

.filter-btn.active {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    border-color: transparent;
}

.cases-nav-section {
    padding: 30px 0;
    background: #fff;
    border-bottom: 1px solid #eee;
}

.cases-nav {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.cases-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 25px;
    border: 1px solid #0071e3;
    border-radius: 50px;
    background: transparent;
    color: #0071e3;
    font-size: 15px;
    font-weight: 400;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cases-nav-btn:hover {
    background: #0071e3;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 113, 227, 0.3);
}

.cases-nav-btn.active {
    background: #0071e3;
    color: #fff;
    border-color: #0071e3;
}

.cases-nav-btn i {
    font-size: 14px;
}

.cases-section {
    padding: 60px 0;
    background: #f8f9fa;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.cases-default {
    display: contents;
}

.case-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
}

.case-card.hidden {
    display: none;
}

.case-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

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

.case-card:hover .case-image img {
    transform: scale(1.08);
}

.case-category-tag {
    position: absolute;
    top: 15px;
    left: 15px;
    background: linear-gradient(135deg, #e3f2fd 0%, #90caf9 20%, #42a5f5 40%, #2196f3 60%, #1976d2 80%, #0d47a1 100%);
    color: #fff;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(13, 71, 161, 0.3);
}

.case-content {
    padding: 25px;
}

.case-content h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: #2c3e50;
}

.case-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
    font-size: 13px;
    color: #999;
}

.case-meta i {
    margin-right: 5px;
    color: #667eea;
}

.case-date {
    font-size: 13px;
    color: #999;
    font-weight: 500;
}

.case-desc {
    color: #666;
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 15px;
}

.case-result {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    border-left: 3px solid #667eea;
}

.case-result h4 {
    font-size: 14px;
    color: #2c3e50;
    margin-bottom: 8px;
}

.case-result h4 i {
    color: #f39c12;
    margin-right: 5px;
}

.case-result p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}

.btn-case {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
}

.btn-case:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

/* 项目数据统计 */
.category-section {
    margin-bottom: 60px;
    padding: 30px;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.05);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding-bottom: 25px;
    margin-bottom: 30px;
    border-bottom: 2px solid #f0f0f0;
}

.category-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    background: linear-gradient(135deg, #e3f2fd 0%, #90caf9 20%, #42a5f5 40%, #2196f3 60%, #1976d2 80%, #0d47a1 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(13, 71, 161, 0.3);
}

.category-icon i {
    font-size: 28px;
    color: #fff;
}

.category-info h2 {
    font-size: 24px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 5px;
}

.category-desc {
    font-size: 14px;
    color: #666;
}

.category-cases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
}

.cases-stats-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.cases-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

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

.case-stat-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 28px;
}

.case-stat-number {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 8px;
}

.case-stat-label {
    font-size: 16px;
    opacity: 0.8;
}

/* 项目流程时间线 */
.cases-process-section {
    padding: 80px 0;
}

.process-timeline {
    display: flex;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
    position: relative;
}

.process-step {
    flex: 1;
    min-width: 180px;
    text-align: center;
    padding: 30px 20px;
    position: relative;
}

.process-step::after {
    content: '';
    position: absolute;
    top: 58px;
    right: -30%;
    width: 60%;
    height: 2px;
    background: linear-gradient(90deg, #667eea, #764ba2);
}

.process-step:last-child::after {
    display: none;
}

.process-number {
    font-size: 36px;
    font-weight: bold;
    color: #667eea;
    opacity: 0.2;
    margin-bottom: 15px;
}

.process-content i {
    font-size: 32px;
    color: #667eea;
    margin-bottom: 15px;
    display: block;
}

.process-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.process-content p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}

/* 合作伙伴 */
.cases-partners-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 25px;
}

.partner-item {
    background: #fff;
    padding: 35px 20px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.05);
}

.partner-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.partner-item i {
    font-size: 36px;
    margin-bottom: 15px;
    color: #667eea;
    display: block;
}

.partner-item span {
    font-size: 14px;
    font-weight: 500;
    color: #333;
}

/* ===== 产品详情页样式 ===== */
.service-detail-hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
}

.service-detail-hero-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 80px;
    align-items: center;
}

.service-detail-hero-icon {
    position: relative;
    display: flex;
    justify-content: center;
}

.icon-circle {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.4);
    animation: float 4s ease-in-out infinite;
}

.icon-inner {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-inner i {
    font-size: 72px;
    color: #fff;
}

.icon-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.3) 0%, transparent 70%);
    z-index: 1;
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.8; }
}

.service-detail-hero-content h2 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 25px;
    color: #2c3e50;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.service-detail-hero-desc {
    font-size: 17px;
    color: #555;
    line-height: 2.2;
    margin-bottom: 30px;
}

.service-detail-hero-buttons {
    display: flex;
    gap: 20px;
}

.btn-hero {
    padding: 15px 40px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 50px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.btn-outline {
    background: transparent;
    color: #667eea;
    border: 2px solid #667eea;
}

.btn-outline:hover {
    background: #667eea;
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.service-detail-intro {
    padding: 100px 0;
    background: #fff;
}

.intro-wrapper {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px;
    background: linear-gradient(135deg, #f8f9fc 0%, #f0f2f5 100%);
    border-radius: 20px;
    border-left: 4px solid #667eea;
}

.intro-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.intro-icon i {
    font-size: 28px;
    color: #fff;
}

.intro-text p {
    font-size: 17px;
    line-height: 2.2;
    color: #555;
    text-indent: 2em;
}

.service-features-section {
    padding: 100px 0;
    background: #f8f9fa !important;
}

.service-features-section .container {
    position: relative;
}

.service-features-section .section-title {
    color: #0d47a1 !important;
}

.service-features-section .section-title::after {
    background: #0d47a1 !important;
}

.service-features-section .detail-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.service-features-section .detail-feature-item,
.service-features-section .detail-feature-item.hover-lift {
    background: #ffffff !important;
    color: #333 !important;
    padding: 24px 28px;
    border-radius: 15px;
    border: 1px solid rgba(0, 113, 227, 0.15) !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05) !important;
    transition: all 0.4s ease;
}

.service-features-section .detail-feature-item:hover,
.service-features-section .detail-feature-item.hover-lift:hover {
    background: linear-gradient(135deg, #e3f2fd 0%, #90caf9 20%, #42a5f5 40%, #2196f3 60%, #1976d2 80%, #0d47a1 100%) !important;
    color: #fff !important;
    transform: translateY(-10px) !important;
    box-shadow: 0 15px 35px rgba(13, 71, 161, 0.35) !important;
}

.service-features-section .detail-feature-icon {
    width: 36px;
    height: 36px;
    min-width: 36px;
    background: linear-gradient(135deg, #e3f2fd 0%, #90caf9 20%, #42a5f5 40%, #2196f3 60%, #1976d2 80%, #0d47a1 100%) !important;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff !important;
    font-size: 14px;
    transition: all 0.3s ease;
}

.service-features-section .detail-feature-item span,
.service-features-section .detail-feature-item p {
    color: #333 !important;
}

.service-features-section .detail-feature-item:hover span,
.service-features-section .detail-feature-item:hover p {
    color: #fff !important;
}

.service-features-section .detail-feature-item p {
    opacity: 0.8;
    margin: 0;
    line-height: 1.5;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 50px;
}

.feature-card {
    background: #fff;
    padding: 35px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.06);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.feature-number {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 48px;
    font-weight: 800;
    color: rgba(102, 126, 234, 0.08);
    line-height: 1;
}

.feature-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon i {
    font-size: 22px;
    color: #fff;
}

.feature-text {
    font-size: 15px;
    color: #555;
    line-height: 1.7;
    font-weight: 500;
}

.service-feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: #2c3e50;
}

.service-feature-card p {
    color: #666;
    font-size: 14px;
    line-height: 1.8;
}

/* ===== 产品详情页扩展样式 ===== */
.service-detail-buttons {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.btn-secondary-detail {
    background: transparent;
    color: #667eea;
    border: 2px solid #667eea;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-secondary-detail:hover {
    background: #667eea;
    color: #fff;
    transform: translateY(-2px);
}

.service-detail-intro {
    padding: 100px 0;
    background: #f8f9fa;
}

.detail-intro-content {
    max-width: 900px;
    margin: 0 auto;
    font-size: 16px;
    color: #555;
    line-height: 2;
    text-align: justify;
    text-indent: 2em;
    background: #fff;
    padding: 50px 40px;
    border-radius: 20px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.06);
}

.detail-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.detail-feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    padding: 24px 28px;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    transition: all 0.4s ease;
    backdrop-filter: blur(10px);
}

.detail-feature-item:hover {
    background: rgba(255, 255, 255, 0.2) !important;
    color: #fff !important;
    transform: translateY(-10px) !important;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25) !important;
}

.detail-feature-item:hover .detail-feature-icon {
    background: rgba(255, 255, 255, 0.4) !important;
}

.detail-feature-icon {
    width: 36px;
    height: 36px;
    min-width: 36px;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 14px;
    transition: background 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.detail-feature-item span {
    font-size: 15px;
    font-weight: 500;
    color: #fff;
}

.detail-feature-item p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

.service-scenarios-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.detail-scenarios {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.detail-scenario-card {
    background: transparent;
    padding: 35px 20px;
    border-radius: 15px;
    border: 1px solid #0071e3;
    transition: all 0.3s ease;
    text-decoration: none;
    color: #0071e3;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    cursor: pointer;
}

.detail-scenario-card:hover {
    background: #0071e3;
    border-color: #0071e3;
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 113, 227, 0.3);
    color: #fff;
}

.detail-scenario-card i {
    font-size: 28px;
    color: #0071e3;
    transition: all 0.3s ease;
}

.detail-scenario-card:hover i {
    color: #fff;
    transform: scale(1.1);
}

.detail-scenario-card span {
    font-size: 15px;
    font-weight: 500;
}

.detail-scenario-card:hover span {
    font-weight: 600;
}

.service-scenarios-section {
    padding: 100px 0;
    background: #fff;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 50px;
}

.scenario-card {
    background: linear-gradient(135deg, #f8f9fc 0%, #f0f2f5 100%);
    padding: 30px;
    border-radius: 15px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.scenario-card:hover {
    background: #fff;
    border-color: #667eea;
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.15);
}

.scenario-icon {
    width: 45px;
    height: 45px;
    border-radius: 12px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}

.scenario-icon i {
    font-size: 20px;
    color: #fff;
}

.scenario-text {
    font-size: 15px;
    font-weight: 500;
    color: #555;
    line-height: 1.6;
}

.service-detail-benefits {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.service-detail-benefits .section-title {
    color: #fff;
}

.service-detail-benefits .section-title::after {
    background: rgba(255, 255, 255, 0.3);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.benefit-item {
    text-align: center;
    padding: 40px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.benefit-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-8px);
}

.benefit-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.benefit-icon i {
    font-size: 30px;
    color: #fff;
}

.benefit-item h3 {
    font-size: 20px;
    color: #fff;
    margin-bottom: 10px;
    font-weight: 600;
}

.benefit-item p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

.architecture-image {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    margin-top: 30px;
    margin-left: auto;
    margin-right: auto;
    display: block;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.architecture-image:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
}

.products-download-section {
    padding: 100px 0;
    background: #fff;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.download-card {
    background: linear-gradient(135deg, #f8f9fc 0%, #f0f2f5 100%);
    padding: 45px 35px;
    border-radius: 20px;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.download-card:hover {
    background: #fff;
    border-color: #667eea;
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.15);
}

.download-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 32px;
    transition: all 0.4s ease;
}

.download-card:hover .download-icon {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.download-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #2c3e50;
    font-weight: 700;
}

.download-card p {
    color: #666;
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 25px;
}

.download-btn {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    border-radius: 50px;
    padding: 14px 30px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.download-btn i {
    margin-right: 8px;
}

.architecture-images-row {
    display: flex;
    gap: 25px;
    margin-top: 30px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.architecture-images-row .architecture-image {
    width: 100%;
    max-width: 250px;
    height: 250px;
    object-fit: contain;
    margin: 0;
    cursor: pointer;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    background: #f8f9fa;
    border-radius: 15px;
    padding: 15px;
    box-sizing: border-box;
}

.architecture-images-row .architecture-diagram {
    max-width: 500px;
    height: 250px;
    object-fit: contain;
}

.architecture-images-row .architecture-product {
    max-width: 200px;
    height: 250px;
    object-fit: contain;
}

.architecture-images-row a {
    display: flex;
    justify-content: center;
    align-items: center;
}

.architecture-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.architecture-caption {
    font-size: 14px;
    color: #555;
    font-weight: 500;
    text-align: center;
    line-height: 1.4;
    letter-spacing: 0.5px;
    margin: 0;
    padding: 0 5px;
}

.architecture-item .architecture-image {
    width: 100%;
    max-width: 220px;
    height: 200px;
    object-fit: contain;
    background: #f8f9fa;
    border-radius: 15px;
    padding: 15px;
    box-sizing: border-box;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    cursor: pointer;
}

.architecture-item .architecture-image:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 113, 227, 0.2);
}

.architecture-item.architecture-diagram .architecture-image {
    max-width: 400px;
    height: 200px;
}

.architecture-item.architecture-product .architecture-image {
    max-width: 160px;
    height: 200px;
}

.architecture-item:hover .architecture-caption {
    color: #0071e3;
}

.image-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.92);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    cursor: zoom-out;
    animation: fadeIn 0.3s ease-out;
    backdrop-filter: blur(5px);
}

.image-modal.active {
    display: flex;
}

.image-modal-content {
    max-width: 95vw;
    max-height: 95vh;
    width: auto;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 0 80px rgba(102, 126, 234, 0.4), 0 0 120px rgba(0, 0, 0, 0.6);
    animation: zoomIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    object-fit: contain;
    transition: transform 0.3s ease;
}

.image-modal:hover .image-modal-content {
    transform: scale(1.02);
}

.image-modal-close {
    position: absolute;
    top: 25px;
    right: 40px;
    font-size: 45px;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    line-height: 1;
}

.image-modal-close:hover {
    transform: scale(1.1) rotate(90deg);
    background: rgba(102, 126, 234, 0.3);
    border-color: rgba(102, 126, 234, 0.5);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ===== 公司介绍页 ===== */
.company-intro {
    padding: 100px 0;
    background: #fff;
}

.company-summary {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.company-summary-text {
    font-size: 16px;
    line-height: 2;
    color: #555;
    margin-bottom: 20px;
    text-indent: 2em;
    text-align: left;
}

.company-detail-btn {
    margin-top: 20px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.company-detail-btn i {
    transition: transform 0.3s ease;
}

.company-detail-btn:hover i {
    transform: translateX(5px);
}

.company-intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.section-title-left {
    font-size: 36px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 15px;
}

.section-title-left::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 2px;
}

.company-intro-text p {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    margin-bottom: 20px;
    text-indent: 2em;
}

.company-intro-image img {
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.project-process-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-top: 50px;
}

.process-card {
    background: #fff;
    padding: 35px 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: flex-start;
    gap: 25px;
    border-left: 4px solid transparent;
}

.process-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.15);
    border-left-color: #667eea;
}

.process-number {
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    min-width: 70px;
}

.process-content h3 {
    font-size: 20px;
    color: #2c3e50;
    margin-bottom: 10px;
    font-weight: 700;
}

.process-content p {
    font-size: 14px;
    line-height: 1.7;
    color: #666;
}

.company-mission {
    padding: 100px 0;
    background: #fff;
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.mission-card {
    text-align: center;
    padding: 50px 30px;
    border-radius: 15px;
    background: #fff;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mission-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e3f2fd 0%, #90caf9 20%, #42a5f5 40%, #2196f3 60%, #1976d2 80%, #0d47a1 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    box-shadow: 0 4px 15px rgba(13, 71, 161, 0.3);
}

.mission-icon i {
    font-size: 32px;
    color: #fff;
}

.mission-card h3 {
    font-size: 22px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.mission-card p {
    font-size: 15px;
    line-height: 1.7;
    color: #666;
}

.company-advantages {
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.advantage-card {
    padding: 40px 35px;
    border-radius: 15px;
    background: #fff;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.advantage-number {
    font-size: 64px;
    font-weight: 800;
    color: rgba(102, 126, 234, 0.1);
    position: absolute;
    top: 10px;
    right: 20px;
    line-height: 1;
}

.advantage-card h3 {
    font-size: 22px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.advantage-card p {
    font-size: 15px;
    line-height: 1.7;
    color: #666;
}

.company-culture {
    padding: 100px 0;
    background: #fff;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.culture-item {
    text-align: center;
    padding: 40px 20px;
    border-radius: 15px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.culture-item i {
    font-size: 36px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
}

.culture-item h3 {
    font-size: 20px;
    color: #2c3e50;
    margin-bottom: 10px;
}

.culture-item p {
    font-size: 14px;
    color: #666;
}

.company-qualifications {
    padding: 100px 0;
    background: #fff;
}

.company-qualifications .section-subtitle {
    text-align: center;
    color: #666;
    font-size: 16px;
    margin-top: -20px;
    margin-bottom: 40px;
}

.qualifications-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.qualification-card {
    background: #fff;
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    text-align: center;
}

.qualification-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(102, 126, 234, 0.25);
}

.qualification-image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    display: block;
    margin: 0 auto;
}

.qualification-image:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.qualification-label {
    margin-top: 15px;
    font-size: 14px;
    color: #667eea;
    font-weight: 600;
    letter-spacing: 1px;
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: #fff;
        flex-direction: column;
        padding: 30px;
        transition: left 0.3s ease;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 20px 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 38px;
        letter-spacing: 1px;
    }

    .hero-subtitle {
        font-size: 17px;
        line-height: 1.6;
        letter-spacing: 0.5px;
        white-space: nowrap;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .services-preview .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .services-preview .service-card:nth-child(1),
    .services-preview .service-card:nth-child(2),
    .services-preview .service-card:nth-child(3),
    .services-preview .service-card:nth-child(4),
    .services-preview .service-card:nth-child(5),
    .services-preview .service-card:nth-child(6),
    .services-preview .service-card:nth-child(7) {
        grid-column: span 1;
    }

    .services-preview .flip-card-inner {
        height: 160px;
    }

    .services-preview .service-icon {
        font-size: 28px;
    }

    .services-preview .flip-card-front h3 {
        font-size: 13px;
    }

    .services-preview .flip-card-back p {
        font-size: 11px;
    }

    .about-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .cases-grid {
        grid-template-columns: 1fr;
    }

    .services-section .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .services-section .service-card-large:nth-child(1),
    .services-section .service-card-large:nth-child(2),
    .services-section .service-card-large:nth-child(3),
    .services-section .service-card-large:nth-child(4),
    .services-section .service-card-large:nth-child(5),
    .services-section .service-card-large:nth-child(6),
    .services-section .service-card-large:nth-child(7) {
        grid-column: span 1;
        transform: none;
    }

    .services-section .service-card-large {
        padding: 20px 15px;
    }

    .services-section .service-icon-large {
        width: 55px;
        height: 55px;
        font-size: 24px;
        margin: 0 auto 12px;
    }

    .services-section .service-icon-large::after {
        width: 65px;
        height: 65px;
    }

    .services-section .service-card-large h3 {
        font-size: 14px;
        margin-bottom: 10px;
    }

    .services-section .service-card-large p {
        font-size: 12px;
        margin-bottom: 12px;
    }

    .services-section .service-features li {
        font-size: 11px;
        padding: 3px 0;
    }

    .services-section .service-card-large .btn-primary {
        padding: 6px 18px;
        font-size: 12px;
    }

    .cases-filter {
        gap: 10px;
    }

    .filter-btn {
        padding: 8px 20px;
        font-size: 13px;
    }

    .process-timeline {
        flex-direction: column;
    }

    .process-step::after {
        display: none;
    }

    .service-detail-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .service-detail-icon {
        width: 150px;
        height: 150px;
        font-size: 60px;
    }

    .company-intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-main {
        flex-direction: column;
        gap: 20px;
        padding: 0 20px;
    }

    .footer-left,
    .footer-right {
        flex: 1;
        padding: 20px;
    }

    .footer-left .section-title {
        text-align: center;
    }

    .footer-left .section-title::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .footer-qrcodes {
        justify-content: center;
    }

    .mission-grid {
        grid-template-columns: 1fr;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .culture-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .qualifications-grid {
        grid-template-columns: 1fr;
    }

    .architecture-images-row {
        gap: 15px;
    }

    .architecture-images-row .architecture-image {
        max-width: 150px;
    }

    .footer-container {
        padding: 0 20px;
    }

    .footer-qrcodes {
        gap: 20px;
    }

    .footer-qrcode-item img {
        width: 80px;
        height: 80px;
    }

    .download-grid {
        grid-template-columns: 1fr;
    }

    .download-card {
        padding: 35px 25px;
    }

    .nav-logo img {
        height: 36px;
    }

    .nav-logo span {
        font-size: 16px;
    }

    .process-grid {
        grid-template-columns: 1fr;
    }

    .process-card {
        padding: 25px 20px;
    }

    .process-number {
        font-size: 36px;
        min-width: 50px;
    }

    .qualifications-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .qualification-card {
        padding: 15px;
    }

    .qrcode-container {
        gap: 20px;
    }

    .qrcode-image {
        width: 140px;
        height: 140px;
    }
}