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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fff;
    overflow-x: hidden;
}

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

/* 导航栏 */
.header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.logo-icon {
    font-size: 24px;
    margin-right: 12px;
}

.logo-text {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    gap: 8px;
}

.nav-link {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-link:hover,
.nav-link.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

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

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: #fff;
    margin: 3px 0;
    transition: 0.3s;
}

/* 页面标题区域 */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-top: 70px;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.page-title {
    color: #fff;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 16px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 2;
}

.page-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.back-button {
    position: absolute;
    top: 24px;
    left: 24px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    padding: 8px 16px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.back-button:hover {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.1);
}

/* 英雄区域 */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
    margin-top: 70px;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    color: #fff;
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.3rem;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-visual {
    position: absolute;
    top: 50%;
    right: 10%;
    transform: translateY(-50%);
    z-index: 1;
}

.floating-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    color: #fff;
    animation: float 6s ease-in-out infinite;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.card-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 16px;
}

.card-text {
    font-weight: 600;
    font-size: 1.1rem;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: #fff;
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(255, 107, 107, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: #fff;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
}

/* 区域样式 */
.advantages-section,
.services-section,
.contact-section,
.company-intro,
.team-advantages,
.company-timeline,
.company-culture,
.services-overview,
.development-process,
.tech-advantages,
.faq-section,
.contact-info,
.contact-form,
.map-section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    color: #1a1a1a;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

/* 优势卡片 */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
}

.advantage-card {
    background: #fff;
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.advantage-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.advantage-card h3 {
    margin-bottom: 16px;
    color: #1a1a1a;
    font-size: 1.3rem;
}

.advantage-card p {
    color: #666;
    line-height: 1.6;
}

/* 服务卡片 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 32px;
}

.service-card {
    background: #fff;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.service-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.service-icon {
    font-size: 48px;
}

.service-card h3 {
    margin: 0;
    color: #1a1a1a;
    font-size: 1.5rem;
}

.service-card > p {
    color: #666;
    margin-bottom: 24px;
    line-height: 1.6;
}

.service-section {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid #eee;
}

.service-section:last-child {
    border-bottom: none;
}

.service-section h4 {
    color: #1a1a1a;
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.service-features {
    list-style: none;
    padding: 0;
}

.service-features li {
    padding: 8px 0;
    color: #666;
    position: relative;
    padding-left: 24px;
}

.service-features li::before {
    content: '✅';
    position: absolute;
    left: 0;
    color: #52c41a;
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    background: #e6f7ff;
    color: #1890ff;
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 0.9rem;
    border: 1px solid #91d5ff;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
}

.step {
    background: #f5f5f5;
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    color: #666;
    font-size: 0.9rem;
    border: 1px solid #e8e8e8;
}

.service-actions {
    text-align: center;
    margin-top: 24px;
}

/* 联系卡片 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
}

.contact-card {
    background: #fff;
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.contact-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.contact-card h3 {
    margin-bottom: 16px;
    color: #1a1a1a;
}

.contact-content {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1890ff;
    margin-bottom: 8px;
}

.contact-desc {
    color: #666;
    margin-bottom: 16px;
}

.contact-action {
    color: #1890ff;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.contact-action:hover {
    color: #096dd9;
}

/* 公司介绍 */
.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.intro-text h2 {
    font-size: 2rem;
    margin-bottom: 24px;
    color: #1a1a1a;
}

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

.intro-buttons {
    display: flex;
    gap: 16px;
    margin-top: 32px;
}

.company-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background: #f8f9fa;
    padding: 24px;
    border-radius: 16px;
    border: 1px solid #e9ecef;
}

.stat-icon {
    font-size: 32px;
}

.stat-content h3 {
    font-size: 1.8rem;
    color: #1890ff;
    margin-bottom: 4px;
}

.stat-content p {
    color: #666;
    margin: 0;
}

/* 时间线 */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: 0;
    margin-right: 50%;
    text-align: right;
    padding-right: 40px;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 50%;
    margin-right: 0;
    text-align: left;
    padding-left: 40px;
}

.timeline-content {
    background: #fff;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 50%;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    transform: translateY(-50%);
}

.timeline-item:nth-child(odd) .timeline-content::before {
    right: -60px;
}

.timeline-item:nth-child(even) .timeline-content::before {
    left: -60px;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.timeline-year {
    color: #1890ff;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.timeline-content h3 {
    margin-bottom: 12px;
    color: #1a1a1a;
}

.timeline-content p {
    color: #666;
    line-height: 1.6;
}

/* 企业文化 */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.culture-card {
    background: #fff;
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.culture-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.culture-card h3 {
    color: #1a1a1a;
    margin-bottom: 16px;
    font-size: 1.3rem;
}

.culture-card p {
    color: #666;
    line-height: 1.6;
}

/* 开发流程 */
.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.process-card {
    background: #fff;
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.process-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.process-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.process-card h4 {
    color: #1a1a1a;
    margin-bottom: 16px;
    font-size: 1.2rem;
}

.process-card p {
    color: #666;
    line-height: 1.6;
}

/* 技术优势 */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.tech-card {
    background: #fff;
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.tech-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.tech-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}

.tech-card h4 {
    color: #1a1a1a;
    margin-bottom: 16px;
    font-size: 1.2rem;
}

.tech-card p {
    color: #666;
    line-height: 1.6;
}

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

.faq-item {
    background: #fff;
    border-radius: 12px;
    margin-bottom: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.faq-question {
    background: #f8f9fa;
    padding: 20px 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background: #e9ecef;
}

.faq-question h4 {
    margin: 0;
    color: #1a1a1a;
    font-size: 1.1rem;
}

.faq-toggle {
    font-size: 1.5rem;
    color: #1890ff;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

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

.faq-item.active .faq-answer {
    padding: 20px 24px;
    max-height: 200px;
}

.faq-answer p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 联系表单 */
.form-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.form-section h2 {
    font-size: 2rem;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.form-section p {
    color: #666;
    margin-bottom: 32px;
    line-height: 1.6;
}

.contact-form-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

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

.form-group label {
    margin-bottom: 8px;
    color: #1a1a1a;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    border: 2px solid #e8e8e8;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.submit-btn {
    width: 100%;
    padding: 16px;
    font-size: 1.1rem;
    margin-top: 20px;
}

.btn-loading {
    display: none;
}

.submit-btn.loading .btn-text {
    display: none;
}

.submit-btn.loading .btn-loading {
    display: inline;
}

/* 公司信息 */
.company-info-section h2 {
    font-size: 2rem;
    margin-bottom: 32px;
    color: #1a1a1a;
}

.company-info-card {
    background: #f8f9fa;
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 24px;
    border: 1px solid #e9ecef;
}

.company-info-card h4 {
    color: #1a1a1a;
    margin-bottom: 16px;
    font-size: 1.3rem;
}

.company-info-card p {
    color: #666;
    margin-bottom: 24px;
    line-height: 1.6;
}

.info-section {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid #e8e8e8;
}

.info-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.info-section h5 {
    color: #1a1a1a;
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.business-hours {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.hour-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
}

.status {
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 0.9rem;
    font-weight: 500;
}

.status.open {
    background: #f6ffed;
    color: #52c41a;
    border: 1px solid #b7eb8f;
}

.status.closed {
    background: #fff2f0;
    color: #ff4d4f;
    border: 1px solid #ffccc7;
}

.service-promises {
    list-style: none;
    padding: 0;
}

.service-promises li {
    padding: 8px 0;
    color: #666;
    position: relative;
    padding-left: 24px;
}

.service-promises li::before {
    content: '✅';
    position: absolute;
    left: 0;
    color: #52c41a;
}

.quick-contact-card {
    background: #fff;
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    border: 1px solid #e8e8e8;
}

.quick-contact-card h4 {
    color: #1a1a1a;
    margin-bottom: 16px;
    font-size: 1.3rem;
}

.quick-contact-card p {
    color: #666;
    margin-bottom: 24px;
    line-height: 1.6;
}

.quick-call-btn {
    width: 100%;
    padding: 16px;
    font-size: 1.2rem;
}

/* 地图区域 */
.map-card {
    background: #fff;
    border-radius: 20px;
    padding: 60px 40px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.map-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.map-icon {
    font-size: 64px;
    color: #1890ff;
}

.map-card h4 {
    color: #1a1a1a;
    font-size: 1.5rem;
    margin: 0;
}

.map-card p {
    color: #666;
    margin: 0;
    line-height: 1.6;
}

.map-btn {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: #fff;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-bottom: 30px;
}

.footer-section h4 {
    color: #fff;
    margin-bottom: 16px;
    font-size: 1.2rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0 16px;
    display: inline-block;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-visual {
        display: none;
    }
    
    .intro-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .form-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-section,
    .services-section,
    .contact-section,
    .company-intro,
    .team-advantages,
    .company-timeline,
    .company-culture,
    .services-overview,
    .development-process,
    .tech-advantages,
    .faq-section,
    .contact-info,
    .contact-form,
    .map-section {
        padding: 60px 0;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .intro-buttons {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .page-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .btn {
        padding: 10px 24px;
        font-size: 1rem;
    }
    
    .advantages-section,
    .services-section,
    .contact-section,
    .company-intro,
    .team-advantages,
    .company-timeline,
    .company-culture,
    .services-overview,
    .development-process,
    .tech-advantages,
    .faq-section,
    .contact-info,
    .contact-form,
    .map-section {
        padding: 40px 0;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-left: 40px;
        margin-right: 0;
        text-align: left;
        padding-left: 20px;
        padding-right: 20px;
    }
    
    .timeline-item:nth-child(odd) .timeline-content::before,
    .timeline-item:nth-child(even) .timeline-content::before {
        left: -30px;
        right: auto;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
}

/* 选择文本样式 */
::selection {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}