/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background-color: #f8fafc;
    overflow-x: hidden;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #6366f1, #8b5cf6);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #4f46e5, #7c3aed);
}

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

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.15), transparent);
    transform: translateX(-100%);
    transition: transform 0.4s ease;
    z-index: -1;
}

.btn:hover::before {
    transform: translateX(100%);
}

.btn-primary {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: #6366f1;
    border: 2px solid #6366f1;
    box-shadow: 0 2px 10px rgba(99, 102, 241, 0.1);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

/* 导航栏样式 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.navbar-brand a {
    display: flex;
    align-items: center;
    text-decoration: none;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 26px;
    font-weight: 700;
    transition: all 0.3s ease;
}

.navbar-brand:hover a {
    transform: scale(1.05);
}

.navbar-brand i {
    margin-right: 10px;
    font-size: 30px;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-item {
    margin-left: 35px;
}

.nav-link {
    text-decoration: none;
    color: #64748b;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: #6366f1;
}

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

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: #333;
    cursor: pointer;
}

/* 英雄区域样式 */
.hero {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.1"><path d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/></g></g></svg>');
    opacity: 0.5;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 550px;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    margin-bottom: 25px;
    line-height: 1.1;
    letter-spacing: -1px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
    line-height: 1.6;
}

.hero-buttons .btn {
    margin-right: 20px;
    margin-bottom: 15px;
    font-size: 17px;
    padding: 14px 32px;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    animation: float 6s ease-in-out infinite;
}

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

/* 关于我们样式 */
.about {
    padding: 120px 0;
    background-color: white;
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.about::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
    position: relative;
    z-index: 1;
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    color: #2c3e50;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 18px;
    color: #64748b;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

.about-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.about-image {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.about-image:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.about-image img {
    max-width: 100%;
    height: auto;
    transition: all 0.3s ease;
}

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

.about-text {
    max-width: 550px;
    margin-left: 80px;
}

.about-text h3 {
    font-size: 28px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 30px;
    color: #64748b;
    font-size: 16px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    padding: 20px;
    background-color: #f8fafc;
    border-radius: 10px;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    border-left-color: #6366f1;
}

.feature-item i {
    font-size: 28px;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-right: 20px;
    margin-top: 5px;
    flex-shrink: 0;
}

.feature-item h4 {
    font-size: 18px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 14px;
    color: #64748b;
    margin-bottom: 0;
    line-height: 1.6;
}

/* 服务样式 */
.services {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, white 0%, transparent 100%);
    z-index: 1;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 35px;
    position: relative;
    z-index: 2;
}

.service-card {
    background: white;
    padding: 50px 35px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid transparent;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #6366f1 0%, #8b5cf6 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-20px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
    border-color: #e2e8f0;
}

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

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
    font-size: 28px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(10deg);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.service-title {
    font-size: 22px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 20px;
    transition: color 0.3s ease;
}

.service-card:hover .service-title {
    color: #6366f1;
}

.service-description {
    color: #64748b;
    margin-bottom: 25px;
    line-height: 1.7;
    font-size: 15px;
}

.service-link {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
}

.service-link::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    transition: width 0.3s ease;
}

.service-link:hover {
    transform: translateX(5px);
}

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

.service-link i {
    margin-left: 8px;
    transition: transform 0.3s ease;
    font-size: 18px;
}

.service-link:hover i {
    transform: translateX(5px) rotate(45deg);
}

/* 团队样式 */
.team {
    padding: 120px 0;
    background-color: white;
    position: relative;
    overflow: hidden;
}

.team::before {
    content: '';
    position: absolute;
    bottom: -30%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    position: relative;
    z-index: 1;
}

.team-card {
    background-color: white;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
    border: 1px solid transparent;
}

.team-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #6366f1 0%, #8b5cf6 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.team-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
    border-color: #e2e8f0;
}

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

.team-image {
    position: relative;
    overflow: hidden;
    height: 350px;
}

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

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

.team-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to top, rgba(255, 255, 255, 1), rgba(255, 255, 255, 0));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.team-card:hover .team-image::after {
    opacity: 1;
}

.team-info {
    padding: 30px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.team-name {
    font-size: 24px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 8px;
    transition: color 0.3s ease;
}

.team-card:hover .team-name {
    color: #6366f1;
}

.team-role {
    font-size: 16px;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    font-weight: 500;
}

.team-bio {
    color: #64748b;
    font-size: 15px;
    margin-bottom: 25px;
    line-height: 1.6;
}

.team-social {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.team-social a {
    width: 45px;
    height: 45px;
    background-color: #f8fafc;
    color: #64748b;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    text-decoration: none;
    font-size: 18px;
    border: 2px solid transparent;
}

.team-social a:hover {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3);
    border-color: rgba(255, 255, 255, 0.3);
}

/* 客户评价样式 */
.testimonials {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    position: relative;
    overflow: hidden;
}

.testimonials::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
}

.testimonials-slider {
    overflow: hidden;
    position: relative;
    margin-bottom: 50px;
    z-index: 1;
}

.testimonial-card {
    display: none;
    text-align: center;
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.testimonial-card.active {
    display: block;
}

.testimonial-content {
    max-width: 900px;
    margin: 0 auto;
    background-color: white;
    padding: 60px;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
    position: relative;
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.testimonial-content::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 40px;
    font-size: 120px;
    font-family: Georgia, serif;
    color: rgba(99, 102, 241, 0.1);
    line-height: 1;
    z-index: 0;
}

.testimonial-text {
    font-size: 20px;
    color: #475569;
    margin-bottom: 40px;
    font-style: italic;
    line-height: 1.8;
    position: relative;
    z-index: 1;
    font-weight: 500;
}

.testimonial-rating {
    color: #f59e0b;
    margin-bottom: 40px;
    font-size: 24px;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.testimonial-author img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 25px;
    border: 4px solid #6366f1;
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.2);
    transition: transform 0.3s ease;
}

.testimonial-card:hover .testimonial-author img {
    transform: scale(1.1);
}

.testimonial-author h4 {
    font-size: 20px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 5px;
}

.testimonial-author p {
    font-size: 16px;
    color: #64748b;
    margin: 0;
    font-weight: 500;
}

.testimonials-controls {
    display: flex;
    justify-content: center;
    gap: 20px;
    position: relative;
    z-index: 1;
}

.testimonial-control {
    width: 60px;
    height: 60px;
    background-color: white;
    border: 2px solid #e2e8f0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.4s ease;
    color: #6366f1;
    font-size: 20px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.testimonial-control:hover {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    border-color: transparent;
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(99, 102, 241, 0.3);
}

/* 联系我们样式 */
.contact {
    padding: 120px 0;
    background-color: white;
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: -20%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.contact::after {
    content: '';
    position: absolute;
    bottom: -30%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.contact-content {
    display: flex;
    justify-content: space-between;
    gap: 60px;
    position: relative;
    z-index: 1;
    align-items: flex-start;
}

.contact-info {
    flex: 1;
    min-width: 350px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 40px;
    padding: 25px;
    background-color: #f8fafc;
    border-radius: 15px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    border-left: 4px solid transparent;
}

.contact-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
    border-color: #e2e8f0;
    border-left-color: #6366f1;
}

.contact-item i {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-right: 25px;
    flex-shrink: 0;
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
    transition: transform 0.3s ease;
}

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

.contact-item h4 {
    font-size: 20px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 10px;
}

.contact-item p {
    color: #64748b;
    margin: 0;
    font-size: 16px;
    line-height: 1.6;
}

.contact-form {
    flex: 1.5;
    background-color: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
    border: 1px solid #e2e8f0;
}

.form-group {
    margin-bottom: 30px;
}

.form-group label {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 12px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s ease;
    background-color: #fafbfc;
    color: #374151;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    background-color: white;
    transform: translateY(-2px);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
    font-family: inherit;
}

.contact-form .btn {
    width: 100%;
    padding: 16px 0;
    font-size: 18px;
    font-weight: 600;
    margin-top: 10px;
}

/* 统计数据样式 */
.numbers {
    padding: 80px 0;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.numbers::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.1"><path d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/></g></g></svg>');
    opacity: 0.5;
}

.numbers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    position: relative;
    z-index: 1;
}

.number-item {
    text-align: center;
    padding: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.number-item:hover {
    transform: translateY(-10px) scale(1.05);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.number-icon {
    font-size: 48px;
    margin-bottom: 25px;
    background: linear-gradient(135deg, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.7) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: transform 0.3s ease;
}

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

.number-value {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.number-label {
    font-size: 18px;
    font-weight: 500;
    opacity: 0.9;
}

/* 合作伙伴样式 */
.partners {
    padding: 100px 0;
    background-color: white;
    position: relative;
    overflow: hidden;
}

.partners::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 60px;
    position: relative;
    z-index: 1;
    align-items: center;
    justify-items: center;
}

.partner-item {
    font-size: 48px;
    color: #64748b;
    opacity: 0.7;
    transition: all 0.3s ease;
    filter: grayscale(100%);
}

.partner-item:hover {
    color: #6366f1;
    opacity: 1;
    transform: scale(1.2) rotate(5deg);
    filter: grayscale(0%);
}

/* 页脚样式 */
.footer {
    background-color: #2c3e50;
    color: white;
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: white;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
}

.footer-brand i {
    margin-right: 10px;
    font-size: 28px;
}

.footer-description {
    color: #bdc3c7;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 10px;
    transition: all 0.3s ease;
    text-decoration: none;
}

.footer-social a:hover {
    background-color: #3498db;
}

.footer-links h4,
.footer-services h4,
.footer-newsletter h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

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

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a,
.footer-services ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links ul li a:hover,
.footer-services ul li a:hover {
    color: #3498db;
}

.footer-newsletter p {
    color: #bdc3c7;
    margin-bottom: 20px;
}

.newsletter-form {
    display: flex;
}

.newsletter-form input {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 4px 0 0 4px;
    font-size: 14px;
}

.newsletter-form .btn {
    border-radius: 0 4px 4px 0;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-policies a {
    color: #bdc3c7;
    text-decoration: none;
    margin-left: 20px;
    transition: color 0.3s ease;
}

.footer-policies a:hover {
    color: #3498db;
}

/* 返回顶部按钮样式 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero .container,
    .about-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-content,
    .about-text {
        max-width: 100%;
        margin-bottom: 50px;
    }

    .about-text {
        margin-left: 0;
    }

    .contact-content {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .navbar-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: 100vh;
        background-color: white;
        transition: left 0.3s ease;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    }

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

    .navbar-nav {
        flex-direction: column;
        padding: 20px;
    }

    .nav-item {
        margin: 15px 0;
    }

    .navbar-toggle {
        display: block;
    }

    .hero-title {
        font-size: 36px;
    }

    .section-title {
        font-size: 30px;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

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

    .hero-buttons .btn {
        margin-right: 0;
        width: 200px;
    }

    .testimonial-content {
        padding: 30px 20px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .footer-policies {
        margin-top: 15px;
    }

    .footer-policies a {
        margin: 0 10px;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 28px;
    }

    .section-title {
        font-size: 24px;
    }

    .service-card {
        padding: 30px 20px;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .newsletter-form .btn {
        border-radius: 4px;
        margin-top: 10px;
    }
}