/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Roboto', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background-color: #f8fafc;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2563eb, #1e40af);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

.btn-secondary {
    background: transparent;
    color: #3b82f6;
    border: 2px solid #3b82f6;
}

.btn-secondary:hover {
    background: rgba(59, 130, 246, 0.1);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: #3b82f6;
    border: 2px solid #3b82f6;
    padding: 10px 24px;
}

.btn-outline:hover {
    background: #3b82f6;
    color: white;
    transform: translateY(-2px);
}

/* 语言切换器 */
.language-switcher {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    background: white;
    border-radius: 50px;
    padding: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.lang-btn {
    padding: 8px 16px;
    border: none;
    background: transparent;
    font-size: 14px;
    font-weight: 600;
    color: #64748b;
    cursor: pointer;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.lang-btn.active {
    background: #3b82f6;
    color: white;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 999;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 15px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #1e293b;
}

.logo-icon {
    font-size: 32px;
    color: #3b82f6;
    margin-right: 12px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-size: 20px;
    font-weight: 700;
    color: #1e293b;
}

.logo-sub {
    font-size: 12px;
    color: #64748b;
    margin-top: 2px;
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-link {
    text-decoration: none;
    color: #475569;
    font-weight: 500;
    font-size: 16px;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: #3b82f6;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #60a5fa);
    border-radius: 3px;
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    color: #1e293b;
    cursor: pointer;
}

/* 移动端菜单 */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: white;
    z-index: 1001;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #e2e8f0;
}

.mobile-menu-close {
    font-size: 24px;
    color: #64748b;
    cursor: pointer;
}

.mobile-nav-links {
    list-style: none;
    padding: 20px;
    flex: 1;
}

.mobile-nav-link {
    display: block;
    padding: 16px 0;
    text-decoration: none;
    color: #475569;
    font-size: 18px;
    font-weight: 500;
    border-bottom: 1px solid #f1f5f9;
    transition: color 0.3s ease;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: #3b82f6;
}

/* 页面标题 */
.page-header {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    text-align: center;
}

.page-title {
    font-size: 48px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 16px;
}

.page-subtitle {
    font-size: 18px;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
}

/* 首页横幅 */
.hero {
    padding: 160px 0 120px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #bae6fd 100%);
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.2;
    color: #1e293b;
    margin-bottom: 24px;
}

.hero-description {
    font-size: 18px;
    color: #475569;
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.floating-element {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: float 6s ease-in-out infinite;
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.3);
}

.floating-element i {
    font-size: 100px;
    color: white;
}

.floating-element.large {
    width: 400px;
    height: 400px;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    transform: rotate(180deg);
    color: rgba(255, 255, 255, 0.8);
}

.hero-wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 120px;
}

/* 核心优势 */
.advantages {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 16px;
}

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

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.advantage-card {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-align: center;
    border: 1px solid #f1f5f9;
}

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: #e0f2fe;
}

.advantage-icon {
    font-size: 48px;
    color: #3b82f6;
    margin-bottom: 24px;
}

.advantage-title {
    font-size: 24px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 16px;
}

.advantage-description {
    color: #64748b;
    line-height: 1.6;
}

/* 业务介绍 */
.business {
    padding: 100px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

.business-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.business-text {
    flex: 1;
}

.business-text p {
    margin-bottom: 20px;
    color: #475569;
    font-size: 17px;
    line-height: 1.6;
}

.business-image {
    flex: 1;
}

.dashboard-preview {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid #e2e8f0;
}

.dashboard-header {
    background: #1e293b;
    padding: 16px;
    display: flex;
    gap: 8px;
}

.dashboard-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dashboard-dot.red { background: #ef4444; }
.dashboard-dot.yellow { background: #f59e0b; }
.dashboard-dot.green { background: #10b981; }

.dashboard-content {
    padding: 30px;
}

.dashboard-chart {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    height: 200px;
    margin-bottom: 40px;
    padding: 20px 0;
}

.chart-bar {
    width: 40px;
    background: linear-gradient(to top, #3b82f6, #60a5fa);
    border-radius: 8px 8px 0 0;
    animation: growBar 1.5s ease-out;
}

.dashboard-stats {
    display: flex;
    justify-content: space-around;
    text-align: center;
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: #3b82f6;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 页脚 */
.footer {
    background: #1e293b;
    color: white;
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-logo i {
    margin-right: 12px;
    color: #60a5fa;
}

.footer-description {
    color: #94a3b8;
    margin-bottom: 24px;
    line-height: 1.6;
}

.footer-social {
    display: flex;
    gap: 16px;
}

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

.social-icon:hover {
    background: #3b82f6;
    transform: translateY(-3px);
}

.footer-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
    color: white;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #60a5fa;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 16px;
    color: #94a3b8;
}

.footer-contact i {
    margin-right: 12px;
    color: #60a5fa;
    min-width: 20px;
}

.footer-newsletter {
    color: #94a3b8;
    margin-bottom: 20px;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.newsletter-form input {
    padding: 12px 16px;
    border: 1px solid #475569;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    color: white;
    font-size: 16px;
}

.newsletter-form input::placeholder {
    color: #94a3b8;
}

.newsletter-form button {
    padding: 12px 24px;
    background: #3b82f6;
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.newsletter-form button:hover {
    background: #2563eb;
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid #475569;
    color: #94a3b8;
    font-size: 14px;
}

/* 关于页面样式 */
.company-intro {
    padding: 80px 0;
}

.company-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.company-text h2 {
    font-size: 36px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 24px;
}

.company-text p {
    margin-bottom: 20px;
    color: #475569;
    font-size: 17px;
    line-height: 1.6;
}

.mission-vision {
    padding: 80px 0;
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
}

.mv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.mv-card {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: all 0.3s ease;
}

.mv-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.mv-icon {
    font-size: 48px;
    color: #3b82f6;
    margin-bottom: 24px;
}

.mv-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 16px;
}

.mv-card p {
    color: #64748b;
    line-height: 1.6;
}

.tech-capabilities {
    padding: 80px 0;
}

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

.tech-item {
    text-align: center;
    padding: 30px;
}

.tech-icon {
    font-size: 48px;
    color: #3b82f6;
    margin-bottom: 20px;
}

.tech-item h3 {
    font-size: 22px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 12px;
}

.tech-item p {
    color: #64748b;
    line-height: 1.6;
}

.testimonials {
    padding: 80px 0;
    background: #f8fafc;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.testimonial-card {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.testimonial-content {
    font-size: 18px;
    font-style: italic;
    color: #475569;
    line-height: 1.8;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid #f1f5f9;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.author-info h4 {
    font-size: 18px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 4px;
}

.author-info p {
    color: #64748b;
    font-size: 14px;
}

/* 服务页面样式 */
.services-overview {
    padding: 80px 0;
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
}

.service-process {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    position: relative;
}

.service-process::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 100px;
    right: 100px;
    height: 2px;
    background: #cbd5e1;
    z-index: 1;
}

.process-step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 2;
}

.step-number {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 700;
    margin: 0 auto 24px;
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3);
}

.process-step h3 {
    font-size: 24px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 12px;
}

.process-step p {
    color: #64748b;
    line-height: 1.6;
}

.core-services {
    padding: 80px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.service-card {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid #f1f5f9;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: #3b82f6;
}

.service-icon {
    font-size: 48px;
    color: #3b82f6;
    margin-bottom: 24px;
}

.service-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 16px;
}

.service-card p {
    color: #64748b;
    margin-bottom: 20px;
    line-height: 1.6;
}

.service-features {
    list-style: none;
    margin-top: 20px;
}

.service-features li {
    margin-bottom: 8px;
    color: #475569;
    padding-left: 24px;
    position: relative;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

.tech-architecture {
    padding: 80px 0;
    background: #f8fafc;
}

.architecture-diagram {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.arch-layer {
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 20px;
    border: 1px solid #bae6fd;
}

.arch-title {
    font-size: 20px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 16px;
    text-align: center;
}

.arch-items {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.arch-items span {
    background: white;
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 14px;
    color: #3b82f6;
    border: 1px solid #bfdbfe;
}

.arch-arrow {
    text-align: center;
    margin: 20px 0;
    color: #3b82f6;
    font-size: 24px;
}

.case-studies {
    padding: 80px 0;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.case-card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid #f1f5f9;
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: #3b82f6;
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.case-industry {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #64748b;
    font-size: 14px;
}

.case-industry i {
    color: #3b82f6;
}

.case-result {
    font-size: 32px;
    font-weight: 700;
    color: #3b82f6;
}

.case-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 16px;
}

.case-card p {
    color: #64748b;
    line-height: 1.6;
}

.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 18px;
    margin-bottom: 32px;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-content .btn-primary {
    background: white;
    color: #3b82f6;
    font-weight: 600;
}

.cta-content .btn-primary:hover {
    background: #f1f5f9;
    transform: translateY(-2px);
}

/* 联系页面样式 */
.contact-info {
    padding: 80px 0;
}

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

.contact-card {
    text-align: center;
    padding: 40px 30px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    font-size: 48px;
    color: #3b82f6;
    margin-bottom: 20px;
}

.contact-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 12px;
}

.contact-card p {
    color: #64748b;
    margin-bottom: 16px;
    line-height: 1.6;
}

.contact-link {
    color: #3b82f6;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s ease;
}

.contact-link:hover {
    color: #1d4ed8;
    transform: translateX(5px);
}

.contact-form-section {
    padding: 80px 0;
    background: #f8fafc;
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 60px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.form-intro {
    text-align: center;
    margin-bottom: 40px;
}

.form-intro h2 {
    font-size: 36px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 16px;
}

.form-intro p {
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 24px;
}

.form-note {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fef3c7;
    color: #92400e;
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 14px;
}

.form-note i {
    color: #f59e0b;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

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

.form-group label {
    font-size: 16px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 16px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    transition: all 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.checkbox-group {
    flex-direction: row;
    align-items: center;
    gap: 12px;
}

.checkbox-group input {
    width: 20px;
    height: 20px;
}

.checkbox-group label {
    margin-bottom: 0;
    font-weight: normal;
}

.submit-btn {
    padding: 16px 32px;
    font-size: 18px;
    font-weight: 600;
    margin-top: 20px;
}

.form-message {
    margin-top: 24px;
    padding: 16px;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
}

.form-message.success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.form-message.error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

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

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

.faq-item {
    background: white;
    border-radius: 12px;
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid #f1f5f9;
}

.faq-question {
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: #f8fafc;
}

.faq-question h3 {
    font-size: 18px;
    font-weight: 600;
    color: #1e293b;
    margin: 0;
}

.faq-question i {
    color: #64748b;
    transition: transform 0.3s ease;
}

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

.faq-answer {
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 24px 24px;
    max-height: 500px;
}

.faq-answer p {
    color: #64748b;
    line-height: 1.6;
}

.map-section {
    padding: 80px 0;
    background: #f8fafc;
}

.map-container {
    max-width: 1000px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.map-container h2 {
    padding: 40px 40px 20px;
    font-size: 36px;
    font-weight: 700;
    color: #1e293b;
}

.map-placeholder {
    display: flex;
    flex-direction: column;
}

.map-content {
    padding: 40px;
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    display: flex;
    align-items: flex-start;
    gap: 24px;
}

.map-pin {
    font-size: 40px;
    color: #ef4444;
}

.map-address h3 {
    font-size: 24px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 8px;
}

.map-address p {
    color: #475569;
    margin-bottom: 8px;
    line-height: 1.6;
}

.map-image {
    height: 400px;
    background: linear-gradient(135deg, #e0f2fe, #bae6fd);
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-fallback {
    text-align: center;
    color: #3b82f6;
}

.map-fallback i {
    font-size: 80px;
    margin-bottom: 16px;
}

.map-fallback p {
    font-size: 18px;
    font-weight: 600;
}

/* 动画关键帧 */
@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
        border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }
}

@keyframes growBar {
    0% {
        height: 0;
    }
    100% {
        height: var(--target-height);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .business-content {
        flex-direction: column;
    }
    
    .company-content {
        flex-direction: column;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .service-process {
        flex-direction: column;
        gap: 50px;
    }
    
    .service-process::before {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-description {
        font-size: 16px;
    }
    
    .page-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .form-container {
        padding: 40px 20px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 140px 0 80px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .floating-element {
        width: 200px;
        height: 200px;
    }
    
    .floating-element i {
        font-size: 60px;
    }
    
    .floating-element.large {
        width: 250px;
        height: 250px;
    }
}
/* 防止页面加载闪烁 */
html {
    opacity: 1;
    transition: opacity 0.3s ease;
}

html.page-loading {
    opacity: 0;
}

/* 页面内容初始隐藏，加载后显示 */
body > *:not(nav):not(.language-switcher):not(.mobile-menu) {
    opacity: 0;
    animation: fadeIn 0.5s ease 0.3s forwards;
}

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