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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
    overflow-x: hidden;
}

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

/* 工具类 */
.bg-light {
    background-color: #f8f9fa;
}

/* 排版样式 */
h1, h2, h3, h4, h5 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    line-height: 1.3;
    color: #1a1a1a;
}

a {
    text-decoration: none;
    color: inherit;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-family: 'Inter', sans-serif;
}

.btn-primary {
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: white;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1d4ed8, #2563eb);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background: white;
    color: #2563eb;
    border: 2px solid #2563eb;
}

.btn-secondary:hover {
    background: #f8f9fa;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn-outline {
    background: transparent;
    color: #2563eb;
    border: 2px solid #2563eb;
}

.btn-outline:hover {
    background: #2563eb;
    color: white;
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

.btn-block {
    display: block;
    width: 100%;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
}

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

.logo-name {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 20px;
    color: #1a1a1a;
}

.logo-tagline {
    font-size: 12px;
    color: #666;
    margin-top: 2px;
}

.nav-menu {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: #666;
    transition: color 0.3s ease;
    position: relative;
    padding: 8px 0;
}

.nav-link:hover,
.nav-link.active {
    color: #2563eb;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    border-radius: 3px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: #1a1a1a;
    cursor: pointer;
    padding: 8px;
}

/* 英雄区域样式 */
.hero {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 24px;
    color: #1a1a1a;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 20px;
    color: #666;
    margin-bottom: 40px;
    line-height: 1.6;
}

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

.hero-image {
    text-align: center;
    margin-top: 60px;
}

.image-placeholder {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    padding: 40px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.image-placeholder i {
    font-size: 48px;
    color: #2563eb;
}

.image-placeholder.large {
    padding: 60px;
}

.image-placeholder.large i {
    font-size: 64px;
}

/* 页面标题区域 */
.page-header {
    padding: 140px 0 60px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    text-align: center;
}

.page-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.page-subtitle {
    font-size: 20px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* 板块标题样式 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.section-subtitle {
    font-size: 18px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* 核心业务展示 */
.services {
    padding: 100px 0;
}

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

.service-card {
    background: white;
    border-radius: 16px;
    padding: 40px 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: white;
    font-size: 32px;
}

.service-title {
    font-size: 24px;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.service-description {
    color: #666;
    margin-bottom: 30px;
    line-height: 1.6;
}

.service-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 30px;
    width: 100%;
}

.feature {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #666;
    font-size: 15px;
}

.feature i {
    color: #10b981;
    font-size: 18px;
}

/* 服务详情样式 */
.service-details {
    padding: 100px 0;
}

.details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.details-grid.reverse {
    direction: rtl;
}

.details-grid.reverse > * {
    direction: ltr;
}

.details-title {
    font-size: 32px;
    margin-bottom: 24px;
    color: #1a1a1a;
}

.details-text {
    font-size: 18px;
    color: #666;
    margin-bottom: 40px;
    line-height: 1.6;
}

.details-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

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

.detail-icon {
    width: 60px;
    height: 60px;
    background: #f0f7ff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    font-size: 24px;
    flex-shrink: 0;
}

.detail-info h4 {
    font-size: 20px;
    margin-bottom: 8px;
    color: #1a1a1a;
}

.detail-info p {
    color: #666;
    line-height: 1.6;
}

/* 成功案例样式 */
.case-studies {
    padding: 100px 0;
}

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

.case-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.case-badge {
    display: inline-block;
    padding: 6px 16px;
    background: #f0f7ff;
    color: #2563eb;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
}

.case-title {
    font-size: 24px;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.case-description {
    color: #666;
    margin-bottom: 30px;
    line-height: 1.6;
}

.case-stats {
    display: flex;
    gap: 40px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: #2563eb;
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: #666;
    margin-top: 8px;
}

/* 公司简介样式 */
.company-intro {
    padding: 80px 0;
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.intro-title {
    font-size: 36px;
    margin-bottom: 24px;
    color: #1a1a1a;
}

.intro-text {
    font-size: 18px;
    color: #666;
    margin-bottom: 24px;
    line-height: 1.6;
}

.intro-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.intro-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-size: 40px;
    font-weight: 700;
    color: #2563eb;
    line-height: 1;
}

.stat-label {
    font-size: 16px;
    color: #666;
    margin-top: 12px;
}

/* 核心价值观样式 */
.values {
    padding: 100px 0;
}

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

.value-card {
    background: white;
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.value-card:hover {
    transform: translateY(-10px);
}

.value-icon {
    width: 80px;
    height: 80px;
    background: #f0f7ff;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: #2563eb;
    font-size: 32px;
}

.value-title {
    font-size: 22px;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.value-description {
    color: #666;
    line-height: 1.6;
}

/* 时间线样式 */
.timeline {
    padding: 100px 0;
}

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

.timeline-item {
    display: flex;
    gap: 40px;
    margin-bottom: 50px;
    position: relative;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-year {
    width: 100px;
    flex-shrink: 0;
    font-size: 24px;
    font-weight: 700;
    color: #2563eb;
    text-align: center;
}

.timeline-content {
    flex: 1;
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.timeline-title {
    font-size: 20px;
    margin-bottom: 12px;
    color: #1a1a1a;
}

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

/* 团队介绍样式 */
.team {
    padding: 100px 0;
}

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

.team-card {
    background: white;
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.team-card:hover {
    transform: translateY(-10px);
}

.team-avatar {
    width: 120px;
    height: 120px;
    background: #f0f7ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: #2563eb;
    font-size: 48px;
}

.team-name {
    font-size: 24px;
    margin-bottom: 8px;
    color: #1a1a1a;
}

.team-position {
    color: #2563eb;
    font-weight: 500;
    margin-bottom: 16px;
}

.team-bio {
    color: #666;
    line-height: 1.6;
}

/* 荣誉资质样式 */
.certifications {
    padding: 100px 0;
}

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

.cert-card {
    background: white;
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.cert-card:hover {
    transform: translateY(-10px);
}

.cert-icon {
    width: 80px;
    height: 80px;
    background: #f0f7ff;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: #2563eb;
    font-size: 32px;
}

.cert-title {
    font-size: 22px;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.cert-description {
    color: #666;
    line-height: 1.6;
}

/* 联系表单样式 */
.contact-form-section {
    padding: 80px 0;
}

.form-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
}

.form-container {
    background: white;
    border-radius: 16px;
    padding: 50px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.form-title {
    font-size: 32px;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.form-description {
    color: #666;
    margin-bottom: 40px;
    line-height: 1.6;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-weight: 500;
    color: #1a1a1a;
    font-size: 15px;
}

.form-input,
.form-select,
.form-textarea {
    padding: 14px 18px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 16px;
    font-family: 'Inter', sans-serif;
    transition: border-color 0.3s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 150px;
}

.form-check {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.form-checkbox {
    margin-top: 4px;
}

.form-check-label {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

.privacy-link {
    color: #2563eb;
    text-decoration: underline;
}

.privacy-link:hover {
    color: #1d4ed8;
}

.form-success {
    background: #f0f9ff;
    border: 2px solid #bfdbfe;
    border-radius: 12px;
    padding: 30px;
    margin-top: 30px;
}

.success-message {
    text-align: center;
}

.success-message i {
    font-size: 48px;
    color: #10b981;
    margin-bottom: 20px;
}

.success-message h3 {
    font-size: 24px;
    margin-bottom: 12px;
    color: #1a1a1a;
}

.success-message p {
    color: #666;
    line-height: 1.6;
}

/* 联系信息侧边栏 */
.contact-info-sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-card {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.contact-card-header {
    margin-bottom: 30px;
}

.contact-card-header h3 {
    font-size: 22px;
    margin-bottom: 8px;
    color: #1a1a1a;
}

.contact-card-header p {
    color: #666;
    font-size: 15px;
}

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

.contact-method {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.method-icon {
    width: 48px;
    height: 48px;
    background: #f0f7ff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    font-size: 20px;
    flex-shrink: 0;
}

.method-info h4 {
    font-size: 18px;
    margin-bottom: 4px;
    color: #1a1a1a;
}

.method-info p {
    color: #666;
    font-size: 15px;
    line-height: 1.5;
}

.emergency-contact {
    background: #fef2f2;
    border-radius: 12px;
    padding: 20px;
}

.emergency-info {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.emergency-info i {
    font-size: 24px;
    color: #dc2626;
}

.emergency-info h4 {
    font-size: 18px;
    margin-bottom: 4px;
    color: #1a1a1a;
}

.emergency-number {
    font-size: 20px;
    font-weight: 700;
    color: #dc2626;
}

.emergency-note {
    color: #666;
    font-size: 14px;
    line-height: 1.5;
}

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

.social-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.social-button {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.social-button.wechat {
    background: #f0f9f0;
    color: #10b981;
    border: 2px solid #10b981;
}

.social-button.weibo {
    background: #fef2f2;
    color: #dc2626;
    border: 2px solid #dc2626;
}

.social-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.social-note {
    color: #666;
    font-size: 14px;
    line-height: 1.5;
}

/* 分支机构样式 */
.branches {
    padding: 80px 0;
}

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

.branch-card {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.branch-card:hover {
    transform: translateY(-5px);
}

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

.branch-title {
    font-size: 20px;
    color: #1a1a1a;
}

.branch-status {
    background: #f0f7ff;
    color: #2563eb;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.branch-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.branch-address,
.branch-phone {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: #666;
    font-size: 15px;
}

.branch-address i,
.branch-phone i {
    color: #2563eb;
    margin-top: 2px;
}

/* 常见问题样式 */
.faq {
    padding: 80px 0;
}

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

.faq-item {
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    margin-bottom: 16px;
    overflow: hidden;
}

.faq-item:last-child {
    margin-bottom: 0;
}

.faq-question {
    width: 100%;
    padding: 24px;
    border: none;
    background: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 18px;
    font-weight: 500;
    color: #1a1a1a;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

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

.faq-question i {
    color: #666;
    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: #666;
    line-height: 1.6;
}

/* 行动号召样式 */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: white;
    text-align: center;
}

.cta-title {
    font-size: 36px;
    margin-bottom: 20px;
    color: white;
}

.cta-text {
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto 40px;
    opacity: 0.9;
    line-height: 1.6;
}

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

.cta-section .btn-primary {
    background: white;
    color: #2563eb;
}

.cta-section .btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.cta-section .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* 页脚样式 */
.footer {
    background: #111827;
    color: white;
    padding: 80px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    color: white;
}

.footer-logo i {
    color: #3b82f6;
}

.footer-description {
    color: #9ca3af;
    margin-bottom: 24px;
    line-height: 1.6;
}

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

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    transition: all 0.3s ease;
}

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

.footer-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
}

.footer-link {
    color: #9ca3af;
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: #3b82f6;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: #9ca3af;
    font-size: 15px;
}

.contact-item i {
    color: #3b82f6;
    margin-top: 2px;
}

.footer-bottom {
    padding: 30px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    color: #9ca3af;
    font-size: 14px;
}

.footer-bottom .footer-links {
    display: flex;
    gap: 24px;
}

/* 移动端菜单 */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    bottom: 0;
    width: 320px;
    background: white;
    z-index: 1001;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
}

.mobile-menu.show {
    right: 0;
}

.mobile-menu-header {
    padding: 30px 20px;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mobile-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: #1a1a1a;
}

.mobile-logo i {
    color: #2563eb;
}

.mobile-menu-close {
    background: none;
    border: none;
    font-size: 24px;
    color: #666;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-content {
    flex: 1;
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
}

.mobile-nav-link {
    padding: 16px;
    font-size: 18px;
    font-weight: 500;
    color: #666;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    background: #f0f7ff;
    color: #2563eb;
}

.mobile-menu-footer {
    padding: 30px 20px;
    border-top: 1px solid #e5e7eb;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 42px;
    }
    
    .details-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 12px 0;
    }
    
    .nav-menu,
    .nav-cta {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero {
        padding: 140px 0 80px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .page-title {
        font-size: 36px;
    }
    
    .page-subtitle {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 30px;
    }
    
    .services-grid,
    .case-grid {
        grid-template-columns: 1fr;
    }
    
    .service-card {
        padding: 30px 20px;
    }
    
    .intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .intro-stats {
        flex-direction: column;
        gap: 30px;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .certs-grid {
        grid-template-columns: 1fr;
    }
    
    .form-container {
        padding: 30px 20px;
    }
    
    .branches-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 30px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .page-title {
        font-size: 30px;
    }
    
    .section-title {
        font-size: 26px;
    }
    
    .service-icon {
        width: 70px;
        height: 70px;
        font-size: 28px;
    }
    
    .timeline-item {
        flex-direction: column;
        gap: 20px;
    }
    
    .timeline-year {
        width: 100%;
        text-align: left;
    }
    
    .contact-card {
        padding: 20px;
    }
    
    .image-placeholder {
        padding: 20px;
        gap: 20px;
    }
    
    .image-placeholder i {
        font-size: 32px;
    }
    
    .image-placeholder.large {
        padding: 30px;
    }
    
    .image-placeholder.large i {
        font-size: 48px;
    }
}