/* Global Styles */
:root {
    --primary-color: #0066CC;
    --secondary-color: #004080;
    --accent-color: #FF9900;
    --text-color: #333333;
    --light-text: #FFFFFF;
    --light-bg: #F5F7FA;
    --dark-bg: #2C3E50;
    --border-color: #E1E5EA;
    --success-color: #27AE60;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #fff;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

a:hover {
    color: var(--secondary-color);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 15px;
}

p {
    margin-bottom: 15px;
}

.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--light-text);
    padding: 12px 25px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    text-align: center;
    font-weight: 500;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 14px;
}

.btn:hover {
    background-color: var(--secondary-color);
    color: var(--light-text);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-small {
    padding: 8px 15px;
    font-size: 12px;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--light-text);
}

/* Header Styles */
header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

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

.logo h1 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.sublogo {
    font-size: 14px;
    color: var(--text-color);
    font-weight: 500;
}

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

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 25px;
}

nav ul li a {
    color: var(--text-color);
    font-weight: 500;
    padding-bottom: 5px;
    position: relative;
}

nav ul li a:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    bottom: 0;
    left: 0;
    transition: var(--transition);
}

nav ul li a:hover:after, 
nav ul li a.active:after {
    width: 100%;
}

nav ul li a.active {
    color: var(--primary-color);
}

/* Banner Styles */
.banner {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--light-text);
    padding: 100px 0;
    text-align: center;
}

.banner h2 {
    font-size: 36px;
    margin-bottom: 20px;
    font-weight: 700;
}

.banner p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto 30px;
}

.page-banner {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--light-text);
    padding: 60px 0;
    text-align: center;
}

.page-banner h2 {
    font-size: 32px;
    margin-bottom: 15px;
}

.page-banner p {
    font-size: 16px;
    max-width: 700px;
    margin: 0 auto;
}

/* Services Overview Section */
.services-overview {
    padding: 80px 0;
}

.services-overview h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 32px;
}

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

.service-card {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.service-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.service-card h3 {
    padding: 20px 20px 10px;
    font-size: 22px;
}

.service-card p {
    padding: 0 20px 20px;
    color: #666;
}

.service-card .btn-small {
    margin: 0 20px 20px;
}

/* Testimonials Section */
.testimonials {
    background-color: var(--light-bg);
    padding: 80px 0;
}

.testimonials h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 32px;
}

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

.testimonial {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.quote {
    font-style: italic;
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.8;
    position: relative;
}

.quote::before {
    content: '\201C';
    font-size: 60px;
    position: absolute;
    left: -20px;
    top: -20px;
    color: rgba(0, 102, 204, 0.1);
}

.author {
    font-weight: 600;
    color: var(--secondary-color);
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--light-text);
    padding: 60px 0;
    text-align: center;
}

.cta h2 {
    font-size: 32px;
    margin-bottom: 15px;
}

.cta p {
    font-size: 16px;
    max-width: 700px;
    margin: 0 auto 30px;
}

.cta .btn {
    background-color: var(--accent-color);
    color: var(--dark-bg);
}

.cta .btn:hover {
    background-color: #e68a00;
}

.cta-large {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--light-text);
    padding: 80px 0;
    text-align: center;
}

.cta-large h2 {
    font-size: 32px;
    margin-bottom: 20px;
}

.cta-large p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto 30px;
}

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

/* Footer Styles */
footer {
    background-color: var(--dark-bg);
    color: var(--light-text);
    padding: 60px 0 20px;
}

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

.footer-logo h3 {
    color: var(--light-text);
    font-size: 18px;
    margin-bottom: 15px;
}

.footer-links h4, 
.footer-contact h4 {
    color: var(--light-text);
    margin-bottom: 20px;
    font-size: 16px;
}

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

.footer-links ul li a {
    color: #ccc;
}

.footer-links ul li a:hover {
    color: var(--light-text);
}

.footer-contact p {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.footer-contact p i {
    margin-right: 10px;
    color: var(--accent-color);
}

.footer-contact a {
    color: #ccc;
}

.footer-contact a:hover {
    color: var(--light-text);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

/* Service Detail Styles */
.service-detail {
    padding: 80px 0;
    background-color: #fff;
}

.service-content {
    display: flex;
    align-items: flex-start;
    gap: 40px;
    margin-bottom: 30px;
}

.service-content.reverse {
    flex-direction: row-reverse;
}

.service-text {
    flex: 1;
    width: 100%;
}

.service-text h2 {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 15px;
}

.service-text h2:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
}

.service-text h3 {
    font-size: 20px;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.service-text p {
    margin-bottom: 20px;
}

.service-text ul {
    list-style: disc;
    margin-left: 20px;
    margin-bottom: 20px;
}

.service-text ul li {
    margin-bottom: 10px;
}

.service-text h4 {
    font-size: 18px;
    margin: 30px 0 15px;
}

.service-image img {
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.case-study {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
    padding: 20px;
    border-radius: 8px;
    background-color: #fff;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.case-study:hover {
    transform: translateY(-5px);
}

.case-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    flex-shrink: 0;
}

.case-icon i {
    font-size: 24px;
    color: #fff;
}

.case-content {
    flex: 1;
}

.case-content h5 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.case-content p {
    margin-bottom: 0;
}

.service-detail.alternate {
    background-color: var(--light-bg);
}

/* About Page Styles */
.about-intro {
    padding: 80px 0;
}

.about-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about-image img {
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.about-text {
    padding: 20px;
}

.about-text h2 {
    position: relative;
    padding-bottom: 15px;
    margin-bottom: 25px;
    text-align: center;
}

.about-text h2:after {
    content: '';
    position: absolute;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.about-values {
    padding: 80px 0;
    background-color: #fff;
}

.about-values h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 32px;
    color: var(--secondary-color);
    position: relative;
    padding-bottom: 15px;
}

.about-values h2:after {
    content: '';
    position: absolute;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.value-card {
    background-color: var(--light-bg);
    border-radius: 8px;
    padding: 30px 25px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.value-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.value-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: rgba(0, 102, 204, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--primary-color);
    font-size: 30px;
    transition: var(--transition);
}

.value-card:hover .value-icon {
    background-color: var(--primary-color);
    color: #fff;
    transform: scale(1.1);
}

.value-card h3 {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: 22px;
}

.value-card p {
    font-size: 16px;
    line-height: 1.6;
}

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

.team-section h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 32px;
}

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

.team-member {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.team-member img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.team-member h3 {
    padding: 20px 20px 5px;
    font-size: 22px;
}

.team-member .position {
    color: var(--primary-color);
    padding: 0 20px;
    font-weight: 500;
    margin-bottom: 10px;
}

.team-member p {
    padding: 0 20px 20px;
}

.timeline {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.timeline h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 32px;
    color: var(--secondary-color);
    position: relative;
    padding-bottom: 15px;
}

.timeline h2:after {
    content: '';
    position: absolute;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.timeline-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 0;
}

.timeline-container::after {
    content: '';
    position: absolute;
    width: 4px;
    background-color: var(--primary-color);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
    opacity: 0.7;
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    width: 100%;
}

.timeline-item:nth-child(odd) {
    padding-right: calc(50% + 30px);
    text-align: right;
}

.timeline-item:nth-child(even) {
    padding-left: calc(50% + 30px);
    text-align: left;
}

.timeline-dot {
    position: absolute;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background-color: var(--primary-color);
    top: 15px;
    z-index: 1;
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.2);
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: calc(50% - 11px);
}

.timeline-item:nth-child(even) .timeline-dot {
    left: calc(50% - 11px);
}

.timeline-content {
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.timeline-content h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.timeline-date {
    color: #666;
    font-weight: 600;
    margin-bottom: 10px;
    display: inline-block;
    background-color: rgba(0, 102, 204, 0.1);
    padding: 3px 10px;
    border-radius: 4px;
}

/* Strengths Page Styles */
.strengths-overview {
    padding: 60px 0;
    text-align: center;
}

.strengths-intro {
    max-width: 800px;
    margin: 0 auto;
}

.strengths-intro h2 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

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

.strength-section.alternate {
    background-color: var(--light-bg);
}

.strength-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.strength-content.reverse {
    grid-template-columns: 1fr 1fr;
}

.strength-image img {
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.strength-icon {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 20px;
    background-color: rgba(0, 102, 204, 0.1);
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.strength-text h2 {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.strength-points {
    list-style: none;
    margin: 20px 0;
}

.strength-points li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 15px;
}

.strength-points li:before {
    content: '\f00c';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    color: var(--success-color);
    position: absolute;
    left: 0;
}

/* Contact Page Styles */
.contact-info {
    padding: 80px 0;
}

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

.contact-card {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

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

.contact-icon {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.contact-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

.contact-link {
    display: inline-block;
    margin-top: 10px;
    font-weight: 500;
}

.contact-form-section {
    background-color: var(--light-bg);
    padding: 80px 0;
}

.contact-form-container {
    max-width: 800px;
    margin: 0 auto;
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.form-intro {
    text-align: center;
    margin-bottom: 30px;
}

.form-intro h2 {
    font-size: 32px;
    color: var(--primary-color);
}

.contact-form .form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.contact-form label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 16px;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.2);
}

.form-submit {
    margin-top: 30px;
    text-align: center;
}

.form-submit .btn {
    padding: 12px 30px;
    font-size: 16px;
}

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

.faq-section h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 32px;
}

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

.faq-item {
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background-color: #fff;
    cursor: pointer;
}

.faq-question h3 {
    font-size: 18px;
    margin-bottom: 0;
}

.faq-toggle {
    font-size: 16px;
    color: var(--primary-color);
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 20px 20px;
    max-height: 1000px;
}

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

/* Responsive Styles */
@media (max-width: 1024px) {
    .service-content,
    .service-content.reverse,
    .about-content,
    .strength-content,
    .strength-content.reverse {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .service-image,
    .about-image,
    .strength-image {
        text-align: center;
    }
    
    .timeline-container::after {
        left: 30px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 70px !important;
        padding-right: 0 !important;
        text-align: left !important;
    }
    
    .timeline-item:nth-child(odd) .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
        left: 19px;
    }
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
    }
    
    .logo {
        margin-bottom: 20px;
        text-align: center;
    }
    
    nav ul {
        justify-content: center;
    }
    
    nav ul li {
        margin: 0 12px;
    }
    
    .banner h2 {
        font-size: 28px;
    }
    
    .banner p {
        font-size: 16px;
    }
    
    .page-banner h2 {
        font-size: 26px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons .btn {
        width: 100%;
        margin-bottom: 15px;
    }
    
    .service-detail {
        padding: 60px 0;
    }
    
    .service-text h2 {
        font-size: 24px;
    }
    
    .service-text h3 {
        font-size: 18px;
    }
    
    .case-study {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .case-icon {
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .team-member.no-image {
        padding: 20px;
        min-height: 150px;
    }
}

@media (max-width: 480px) {
    nav ul {
        flex-wrap: wrap;
    }
    
    nav ul li {
        margin: 5px 10px;
    }
    
    .service-card,
    .testimonial,
    .value-card,
    .team-member,
    .contact-card {
        margin: 0 auto;
        max-width: 300px;
    }
    
    .contact-form-container {
        padding: 20px;
    }
    
    .service-detail {
        padding: 40px 0;
    }
    
    .service-text ul {
        padding-left: 20px;
    }
}

/* 在现有的团队部分样式后添加 */
.team-member.no-image {
    text-align: center;
    padding: 30px;
    background-color: var(--light-bg);
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.team-member.no-image:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 8px 8px 0 0;
}

.team-member.no-image:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.team-member.no-image h3 {
    color: var(--secondary-color);
    font-size: 18px;
    margin-bottom: 10px;
}