/* 全局样式 */
:root {
    --primary-color: #4361ee;
    --secondary-color: #f0f2f5;
    --accent-color: #3f37c9;
    --gradient-start: #4361ee;
    --gradient-end: #3f37c9;
    --text-color: #2b2d42;
    --light-text: #555b6e;
    --white: #fff;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --card-shadow: 0 8px 24px rgba(149, 157, 165, 0.1);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --section-spacing: 100px;
}

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

body {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: #fcfcfc;
}

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

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
    font-family: inherit;
}

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

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

/* 头部样式 */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 5%;
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.logo img {
    height: 40px;
}

nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-tabs {
    display: flex;
    gap: 40px;
    padding: 0 20px;
}

.nav-item {
    position: relative;
    padding: 12px 0;
    font-weight: 500;
    font-size: 1rem;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav-item:hover::after,
.nav-item.active::after {
    transform: scaleX(1);
}

.language-selector {
    display: flex;
    gap: 10px;
}

/* 语言下拉菜单样式 */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-btn {
    padding: 8px 16px;
    background-color: var(--white);
    border: 1px solid #eee;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
}

.dropdown-btn:hover {
    background-color: #f8f8f8;
}

.arrow-down {
    font-size: 10px;
}

.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    background-color: var(--white);
    min-width: 120px;
    box-shadow: var(--shadow);
    border-radius: var(--border-radius);
    z-index: 110;
    overflow: hidden;
}

.dropdown:hover .dropdown-content {
    display: block;
    animation: fadeIn 0.3s ease;
}

.dropdown-content a {
    color: var(--text-color);
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    font-size: 14px;
    transition: var(--transition);
}

.dropdown-content a:hover {
    background-color: #f8f8f8;
    color: var(--primary-color);
}

.dropdown-content a.active {
    background-color: var(--primary-color);
    color: var(--white);
}

/* 主要内容区域 */
main {
    min-height: calc(100vh - 200px);
}

.tab-content {
    display: none;
    padding: 60px 5% 80px;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 首页样式 */
.hero {
    padding: 160px 0;
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.03), rgba(63, 55, 201, 0.03));
    border-radius: var(--border-radius);
    margin: 0 auto;
    max-width: none;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(67, 97, 238, 0.08), transparent 70%);
    border-radius: 50%;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 4.2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 35px;
    color: var(--text-color);
    letter-spacing: -0.02em;
    position: relative;
    display: inline-block;
}

.hero-content h1::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    border-radius: 2px;
}

.hero-content p {
    font-size: 1.5rem;
    color: var(--light-text);
    margin-bottom: 50px;
    line-height: 1.6;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-content .cta-button {
    font-size: 1.15rem;
    padding: 20px 48px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--white);
    border-radius: 30px;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 10px 30px rgba(67, 97, 238, 0.25);
    transition: all 0.4s ease;
}

.hero-content .cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(67, 97, 238, 0.35);
    background: linear-gradient(135deg, var(--gradient-end), var(--gradient-start));
}

.hero-graphics {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.dots-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.dot {
    position: absolute;
    border-radius: 50%;
    filter: blur(10px);
    opacity: 0.5;
    transition: all 0.8s ease;
}

.dot-1 {
    width: 180px;
    height: 180px;
    background: rgba(255, 107, 107, 0.2);
    top: 15%;
    left: 10%;
    animation: float 12s ease-in-out infinite;
}

.dot-2 {
    width: 140px;
    height: 140px;
    background: rgba(78, 205, 196, 0.2);
    top: 60%;
    left: 15%;
    animation: float 10s ease-in-out infinite;
}

.dot-3 {
    width: 200px;
    height: 200px;
    background: rgba(255, 217, 61, 0.2);
    top: 30%;
    right: 15%;
    animation: float 14s ease-in-out infinite;
}

.dot-4 {
    width: 120px;
    height: 120px;
    background: rgba(108, 99, 255, 0.2);
    top: 70%;
    right: 20%;
    animation: float 11s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0);
    }
    25% {
        transform: translate(-15px, 15px);
    }
    50% {
        transform: translate(15px, -15px);
    }
    75% {
        transform: translate(15px, 15px);
    }
}

/* 内容区块样式 */
.section {
    margin-bottom: 80px;
    padding: 0 40px;
}

.section h2 {
    font-size: 2.2rem;
    margin-bottom: 30px;
    text-align: center;
    font-weight: 600;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section h2:after {
    content: '';
    position: absolute;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.section > p {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px;
    color: var(--light-text);
    font-size: 1.15rem;
}

/* 解决方案卡片 */
.solutions-grid,
.methodology-grid,
.industries-grid,
.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.solution-card,
.methodology-card,
.industry-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 40px;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.solution-card::before,
.methodology-card::before,
.industry-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.solution-card:hover::before,
.methodology-card:hover::before,
.industry-card:hover::before {
    transform: scaleX(1);
}

.solution-card .icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.solution-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-color);
}

.solution-card p {
    color: var(--light-text);
    line-height: 1.6;
    font-size: 1.1rem;
}

/* 解决方案卡片样式 */
.solution-image {
    margin-bottom: 24px;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.1), rgba(63, 55, 201, 0.1));
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
}

.solution-image img {
    width: 120px;
    height: 120px;
    object-fit: contain;
    transition: var(--transition);
}

.solution-card:hover .solution-image {
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.15), rgba(63, 55, 201, 0.15));
}

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

/* 行业卡片样式 */
.industry-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.1), rgba(63, 55, 201, 0.1));
    border-radius: 50%;
    transition: var(--transition);
}

.industry-icon img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    transition: var(--transition);
}

.industry-card:hover .industry-icon {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    transform: rotate(360deg);
}

.industry-card:hover .industry-icon img {
    filter: brightness(0) invert(1);
}

/* 案例研究卡片 */
.case-study-card {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    background-color: var(--white);
    border: 1px solid rgba(0,0,0,0.05);
    opacity: 0;
    transform: translateY(20px);
}

.case-study-card.animate {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.case-study-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.case-study-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.case-study-card h3 {
    padding: 24px 24px 12px;
    font-size: 1.4rem;
    font-weight: 600;
}

.case-study-card p {
    padding: 0 24px 24px;
    color: var(--light-text);
}

/* 全球覆盖区域 */
.global-reach {
    padding: 40px;
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid rgba(0,0,0,0.05);
}

.international-presence {
    margin-bottom: 40px;
}

.international-presence h3,
.global-footprint h3 {
    font-size: 1.6rem;
    margin-bottom: 18px;
    font-weight: 600;
    color: var(--text-color);
}

.regions {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 10px;
}

.region {
    flex: 1;
    min-width: 250px;
    margin-top: 20px;
}

.region .dot {
    position: static;
    width: 40px;
    height: 40px;
    margin-bottom: 15px;
    animation: none;
}

.dot.asia {
    background-color: #4ECDC4;
}

.dot.europe {
    background-color: #FFD166;
}

.dot.north-america {
    background-color: #FF6B6B;
}

.region h4 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    font-weight: 600;
}

.region p {
    color: var(--light-text);
}

/* 关于我们 Tab 样式 */
.about-hero {
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.08), rgba(63, 55, 201, 0.08));
    padding: 120px 0;
    margin-bottom: var(--section-spacing);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.about-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top left, rgba(67, 97, 238, 0.1), transparent 70%);
}

.about-hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 25px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: relative;
    display: inline-block;
    text-shadow: 0px 4px 12px rgba(67, 97, 238, 0.1);
}

.about-hero p {
    font-size: 1.4rem;
    color: var(--light-text);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
    opacity: 0.9;
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 60px;
    margin-bottom: var(--section-spacing);
}

.about-section {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0,0,0,0.05);
}

.about-section h2 {
    font-size: 1.8rem;
    margin-bottom: 24px;
    text-align: left;
    font-weight: 600;
}

.about-section h2:after {
    left: 0;
    transform: none;
}

.about-section p {
    margin-bottom: 30px;
    color: var(--light-text);
    line-height: 1.7;
}

.team-member {
    margin-top: 36px;
}

.team-member h3 {
    font-size: 1.5rem;
    margin-bottom: 24px;
    font-weight: 600;
}

.member-profile {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-top: 20px;
}

.member-photo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: #eee;
}

.member-info h4 {
    font-size: 1.25rem;
    margin-bottom: 6px;
    color: var(--text-color);
    font-weight: 600;
}

.member-info p {
    margin-bottom: 0;
}

/* 洞察与思想领导 Tab 样式 */
.insights-hero {
    text-align: center;
    margin-bottom: 70px;
}

.insights-hero h1 {
    font-size: 2.8rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--primary-color), #7654ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 40px;
    margin-bottom: var(--section-spacing);
}

.insight-card {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    background-color: var(--white);
    border: 1px solid rgba(0,0,0,0.05);
    opacity: 0;
    transform: translateY(20px);
}

.insight-card.animate {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.insight-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.insight-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transform: scale(1);
    transition: transform 0.5s ease;
}

.insight-card:hover img {
    transform: scale(1.05);
}

.insight-card h3 {
    padding: 24px 24px 12px;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-color);
}

.insight-card p {
    padding: 0 24px 20px;
    color: var(--light-text);
}

.insight-card a {
    display: inline-block;
    padding: 0 24px 24px;
    font-weight: 600;
}

.insight-card a:hover {
    text-decoration: underline;
}

/* 联系我们页面样式优化 */
.contact-hero {
    padding: 120px 0 60px;
    margin-bottom: 60px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.contact-hero::before {
    display: none;
}

.contact-hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 25px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: relative;
    display: inline-block;
    text-shadow: 0px 4px 12px rgba(67, 97, 238, 0.1);
}

.contact-hero p {
    font-size: 1.4rem;
    color: var(--light-text);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
    opacity: 0.9;
}

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

.contact-wrapper {
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
}

.map-container {
    width: 100%;
    height: 400px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(0,0,0,0.05);
    background-color: var(--white);
    margin-bottom: 40px;
}

.map {
    width: 100%;
    height: 100%;
    border: none;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    width: 100%;
    margin-bottom: 40px;
}

.contact-section {
    background: var(--white);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition);
    text-align: center;
    position: relative;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--gradient-start), var(--gradient-end));
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.contact-section:hover::before {
    transform: scaleY(1);
}

.contact-section .icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.1), rgba(63, 55, 201, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary-color);
    transition: var(--transition);
}

.contact-section:hover .icon {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--white);
    transform: rotate(360deg);
}

.contact-section h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
    color: var(--text-color);
    font-weight: 600;
}

.contact-section p {
    margin-bottom: 12px;
    color: var(--light-text);
    font-size: 1.1rem;
    line-height: 1.6;
}

.contact-form {
    background: var(--white);
    padding: 50px;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(0,0,0,0.05);
    width: 100%;
}

.contact-form h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    font-weight: 600;
    text-align: center;
    color: var(--text-color);
}

.contact-form > p {
    color: var(--light-text);
    margin-bottom: 40px;
    text-align: center;
    font-size: 1.1rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 12px;
    font-weight: 500;
    color: var(--text-color);
    font-size: 1.1rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--secondary-color);
}

.form-group input:focus,
.form-group textarea:focus {
    background-color: var(--white);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.1);
}

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

.submit-button {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--white);
    border-radius: 30px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: 0 8px 25px rgba(67, 97, 238, 0.3);
    cursor: pointer;
}

.submit-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(67, 97, 238, 0.4);
}

@media (max-width: 1024px) {
    .contact-wrapper {
        max-width: 800px;
    }
}

@media (max-width: 768px) {
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper {
        max-width: 100%;
    }

    .contact-form {
        padding: 30px;
    }
    
    .map-container {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .contact-content {
        padding: 0 15px;
    }

    .contact-section {
        padding: 30px 20px;
    }
}

/* 页脚样式 */
footer {
    background-color: #202a44;
    color: var(--white);
    padding: 60px 5% 30px;
}

#copyright a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

#copyright a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 50px;
}

.footer-info {
    margin-bottom: 20px;
}

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

.footer-links a {
    color: #ddd;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-cta {
    background-color: #2a3655;
    padding: 36px;
    border-radius: var(--border-radius);
    text-align: center;
    margin-bottom: 30px;
}

.footer-cta p:first-child {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.footer-cta p:nth-child(2) {
    color: #ddd;
    margin-bottom: 24px;
}

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

.cta-btn-outline {
    padding: 12px 28px;
    border: 2px solid var(--white);
    color: var(--white);
    border-radius: 30px;
    font-weight: 600;
    transition: var(--transition);
}

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

.cta-btn-filled {
    padding: 12px 28px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 30px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(76, 111, 255, 0.2);
}

.cta-btn-filled:hover {
    background-color: #3a5acc;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(76, 111, 255, 0.3);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .section {
        padding: 0 20px;
    }
    
    .hero-content h1 {
        font-size: 2.8rem;
    }
}

@media (max-width: 1024px) {
    .hero-content h1 {
        font-size: 3rem;
    }

    .hero-content p {
        font-size: 1.3rem;
    }

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

    .map-container,
    .contact-form {
        grid-column: auto;
    }

    .contact-info {
        grid-template-columns: 1fr 1fr;
    }
    
    .section h2 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        padding: 15px 5%;
    }

    .logo {
        margin-bottom: 15px;
    }

    .nav-tabs {
        gap: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .language-selector {
        margin-top: 15px;
    }

    .hero {
        flex-direction: column;
        margin-bottom: 60px;
    }

    .hero-content {
        max-width: 100%;
        text-align: center;
        margin-bottom: 40px;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content p {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-content h1::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .hero-graphics {
        width: 100%;
        height: 300px;
    }

    .about-content {
        grid-template-columns: 1fr;
    }
    
    .tab-content {
        padding: 40px 5% 60px;
    }
    
    .section {
        margin-bottom: 60px;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }

    .solution-image {
        height: 150px;
    }
    
    .solution-image img {
        width: 100px;
        height: 100px;
    }
    
    .industry-icon {
        width: 60px;
        height: 60px;
    }
    
    .industry-icon img {
        width: 30px;
        height: 30px;
    }

    :root {
        --section-spacing: 60px;
    }
}

@media (max-width: 480px) {
    .nav-item {
        font-size: 14px;
        padding: 8px 0;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

    .section h2 {
        font-size: 1.8rem;
    }
    
    .section {
        padding: 0 10px;
    }

    .solutions-grid,
    .methodology-grid,
    .industries-grid,
    .case-studies-grid,
    .insights-grid {
        grid-template-columns: 1fr;
    }

    .hero-content .cta-button {
        padding: 16px 36px;
        font-size: 1rem;
    }
}

/* 服务页面样式 */
.services-hero, .team-hero {
    text-align: center;
    margin-bottom: 70px;
}

.services-hero h1, .team-hero h1 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 24px;
    background: linear-gradient(90deg, var(--primary-color), #7654ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.services-hero p, .team-hero p {
    font-size: 1.25rem;
    color: var(--light-text);
    max-width: 700px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.05);
    opacity: 0;
    transform: translateY(20px);
}

.service-card.animate {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 16px;
    color: var(--text-color);
    font-weight: 600;
}

.service-card p {
    color: var(--light-text);
    line-height: 1.6;
}

.service-cta, .team-cta {
    text-align: center;
    margin-top: 80px;
    padding: 60px;
    background-color: var(--secondary-color);
    border-radius: var(--border-radius);
}

.service-cta h2, .team-cta h2 {
    font-size: 2rem;
    margin-bottom: 16px;
    font-weight: 600;
}

.service-cta p, .team-cta p {
    color: var(--light-text);
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* 团队页面样式 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.team-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.05);
    text-align: center;
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.team-photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background-color: #eee;
    margin: 0 auto 24px;
}

.team-card h3 {
    font-size: 1.6rem;
    margin-bottom: 8px;
    color: var(--text-color);
    font-weight: 600;
}

.team-card .position {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 16px;
}

.team-card .bio {
    color: var(--light-text);
    line-height: 1.6;
}

.team-values {
    margin-top: 80px;
}

.team-values h2 {
    font-size: 2.2rem;
    margin-bottom: 40px;
    text-align: center;
    font-weight: 600;
}

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

.value-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.05);
}

.value-card h3 {
    color: var(--primary-color);
    font-size: 1.4rem;
    margin-bottom: 16px;
    font-weight: 600;
}

.value-card p {
    color: var(--light-text);
    line-height: 1.6;
}

/* 社交媒体图标 */
.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
    transition: var(--transition);
}

.social-icon:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.social-icon span {
    font-size: 0;
    width: 0;
    height: 0;
    overflow: hidden;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .service-cta, .team-cta {
        padding: 40px 20px;
    }
}

@media (max-width: 1024px) {
    .team-grid, .values-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .services-hero h1, .team-hero h1 {
        font-size: 2.2rem;
    }
    
    .service-cta h2, .team-cta h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .services-grid, .team-grid, .values-grid {
        grid-template-columns: 1fr;
    }
    
    .service-cta, .team-cta {
        padding: 30px 15px;
    }
}

/* 动画效果 */
[data-aos] {
    opacity: 0;
    transform: translateY(20px);
    transition: transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1),
                opacity 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}