/* 基础样式 */
:root {
    --primary-color: #333;
    --secondary-color: #b37f45;
    --light-color: #f8f9fa;
    --dark-color: #212529;
}

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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f9f9f9;
}

/* 语言切换功能 */
[data-lang] {
    display: none !important;
}

/* 默认显示英文（当html标签lang属性为en或未设置时） */
html:not([lang="zh-CN"]) [data-lang="en"] {
    display: block !important;
}

/* 当html标签lang属性为zh-CN时显示中文 */
html[lang="zh-CN"] [data-lang="zh"] {
    display: block !important;
}

/* 对于内联元素需特殊处理 */
a[data-lang], span[data-lang], button[data-lang], label[data-lang] {
    display: none !important;
}

html:not([lang="zh-CN"]) a[data-lang="en"],
html:not([lang="zh-CN"]) span[data-lang="en"],
html:not([lang="zh-CN"]) button[data-lang="en"],
html:not([lang="zh-CN"]) label[data-lang="en"] {
    display: inline-block !important;
}

html[lang="zh-CN"] a[data-lang="zh"],
html[lang="zh-CN"] span[data-lang="zh"],
html[lang="zh-CN"] button[data-lang="zh"],
html[lang="zh-CN"] label[data-lang="zh"] {
    display: inline-block !important;
}

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

.dropdown-content {
    display: none;
    position: absolute;
    background-color: white;
    min-width: 120px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1000;
    border-radius: 4px;
    overflow: hidden;
    right: 0;
    top: 100%;
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a {
    color: var(--dark-color);
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
}

.dropdown-content a:hover {
    background-color: #f1f1f1;
    color: var(--secondary-color);
}

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

/* 头部样式 */
header {
    background-color: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 15px 0;
    position: relative;
    z-index: 100;
}

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

nav ul {
    list-style: none;
    display: flex;
    justify-content: flex-end;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: color 0.3s;
}

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

.logo img {
    height: 60px;
    width: auto;
    display: block;
    margin-bottom: 0;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--secondary-color);
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid var(--secondary-color);
    box-shadow: 0 3px 6px rgba(0,0,0,0.1);
    min-width: 160px;
    margin: 10px 5px;
}

.btn:hover {
    background-color: #c29365;
    border-color: #c29365;
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(0,0,0,0.15);
}

.btn-secondary {
    background-color: transparent;
    color: var(--secondary-color);
}

.btn-secondary:hover {
    background-color: var(--secondary-color);
    color: white;
}

.btn-large {
    padding: 14px 28px;
    font-size: 1.1rem;
}

/* 页脚样式 */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 60px 0 30px;
    margin-top: 60px;
}

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

.footer-info img {
    height: 50px;
    width: auto;
    margin-bottom: 15px;
}

.footer-info p, .footer-contact p {
    color: #ddd;
    margin-bottom: 10px;
}

.footer-contact h3, .footer-links h3, .footer-social h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.2rem;
}

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

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

.footer-links ul li a {
    color: #ddd;
    text-decoration: none;
    transition: color 0.3s;
}

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

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

.copyright {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    text-align: center;
    color: #ddd;
}

/* 联系页面特定样式 */
.contact-header {
    background-color: var(--secondary-color);
    color: white;
    padding: 50px 0;
    text-align: center;
    position: relative;
    z-index: 10;
    overflow: hidden;
}

.contact-header:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(179, 127, 69, 0.9) 0%, rgba(179, 127, 69, 0.7) 100%);
    z-index: 1;
}

.contact-header .container {
    position: relative;
    z-index: 2;
}

.contact-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    position: relative;
}

.contact-header h1:after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: white;
    margin: 15px auto 0;
}

.contact-header p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.contact-main {
    margin: 60px auto;
    display: flex;
    flex-wrap: wrap;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-radius: 10px;
    overflow: hidden;
    background: white;
}

.contact-info-wrapper {
    flex: 1;
    min-width: 350px;
    padding: 40px;
    background-color: white;
}

.contact-info-title {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--dark-color);
    position: relative;
    padding-bottom: 15px;
}

.contact-info-title:after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: var(--secondary-color);
    position: absolute;
    bottom: 0;
    left: 0;
}

.contact-item {
    display: flex;
    margin-bottom: 25px;
    align-items: flex-start;
}

.contact-icon {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-right: 15px;
    background-color: rgba(179, 127, 69, 0.1);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
}

.contact-details {
    flex: 1;
}

.contact-details h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.contact-details p {
    color: #666;
    line-height: 1.5;
}

.map-wrapper {
    flex: 1;
    min-width: 350px;
    min-height: 450px;
}

.map-wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

/* 首页特定样式 */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), 
                url('https://images.pexels.com/photos/1599791/pexels-photo-1599791.jpeg');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 100px 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
}

.features {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.section-title p {
    max-width: 700px;
    margin: 0 auto;
    color: #666;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature {
    text-align: center;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

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

.feature img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    background-color: #e0e0e0;
    margin-bottom: 20px;
    border-radius: 8px;
}

.feature h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

/* 改进项目展示部分 */
.portfolio-preview {
    padding: 80px 0;
    background-color: var(--light-color);
    position: relative;
    overflow: hidden;
}

.portfolio-preview:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(249, 249, 249, 0.8) 0%, rgba(249, 249, 249, 0.2) 100%);
    z-index: 1;
}

.portfolio-preview .container {
    position: relative;
    z-index: 2;
}

.portfolio-preview h2 {
    position: relative;
    display: inline-block;
    margin-bottom: 50px;
    font-size: 2.2rem;
    color: var(--dark-color);
    text-align: center;
    width: 100%;
}

.portfolio-preview h2:after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--secondary-color);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.portfolio-item {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.4s ease;
    position: relative;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.portfolio-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.6s ease;
    display: block;
}

.portfolio-item:hover img {
    transform: scale(1.05);
}

.portfolio-item h3[data-lang] {
    display: none !important;
}

html:not([lang="zh-CN"]) .portfolio-item h3[data-lang="en"] {
    display: block !important;
}

html[lang="zh-CN"] .portfolio-item h3[data-lang="zh"] {
    display: block !important;
}

.portfolio-item .view-project {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: var(--secondary-color);
    color: white;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(179, 127, 69, 0.4);
    text-decoration: none;
    font-size: 20px;
}

.portfolio-item:hover .view-project {
    opacity: 1;
    transform: translateY(0);
}

/* 响应式调整 */
@media (max-width: 992px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-item img {
        height: 250px;
    }
}

/* 响应式样式 */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
    }
    
    .logo {
        margin-bottom: 15px;
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    nav ul li {
        margin: 5px 0;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .contact-header {
        padding: 40px 0;
    }
    
    .contact-header h1 {
        font-size: 2rem;
    }
    
    .contact-main {
        margin: 30px auto;
    }
    
    .map-wrapper {
        min-height: 300px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

/* 重新设计CTA部分 */
.cta {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), 
                url('images/backgrounds/cta-background.jpg');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 80px 0;
    text-align: center;
    position: relative;
    box-shadow: inset 0 0 200px rgba(0, 0, 0, 0.5);
}

.cta:before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(179, 127, 69, 0.9) 0%, rgba(0, 0, 0, 0.8) 100%);
    opacity: 0.8;
    z-index: 1;
}

.cta .container {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.cta h2 {
    font-size: 2.8rem;
    margin-bottom: 30px;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    line-height: 1.2;
}

.cta p {
    font-size: 1.3rem;
    max-width: 700px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

.cta-highlight {
    display: block;
    font-size: 1.4rem;
    margin: 20px 0;
    color: #ffcc80;
    font-weight: 600;
}

.cta-benefits {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.cta-benefit {
    margin: 10px 20px;
    display: flex;
    align-items: center;
}

.cta-benefit-icon {
    margin-right: 10px;
    background-color: rgba(255, 255, 255, 0.2);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 30px;
}

.cta .btn {
    font-size: 1.2rem;
    padding: 15px 35px;
    border-radius: 50px;
    margin: 10px 15px;
    min-width: 200px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-width: 3px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    transition: all 0.4s ease;
}

.cta .btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
}

.cta .phone-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin: 30px 0;
    text-decoration: none;
    transition: all 0.3s;
}

.cta .phone-number:hover {
    color: var(--secondary-color);
    transform: scale(1.05);
}

.cta-buttons a[data-lang] {
    display: none !important;
}

html:not([lang="zh-CN"]) .cta-buttons a[data-lang="en"] {
    display: inline-block !important;
}

html[lang="zh-CN"] .cta-buttons a[data-lang="zh"] {
    display: inline-block !important;
}

@media (max-width: 768px) {
    .cta h2 {
        font-size: 2.2rem;
    }
    
    .cta p {
        font-size: 1.1rem;
    }
    
    .cta-benefit {
        margin: 10px;
    }
    
    .cta .phone-number {
        font-size: 1.8rem;
    }
}

/* 关于我们页面样式 */
.about-header {
    background-color: var(--secondary-color);
    color: white;
    padding: 60px 0;
    text-align: center;
    position: relative;
    z-index: 10;
}

.about-header h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.about-header p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
}

.about-content {
    padding: 60px 0;
}

.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
    align-items: center;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.about-history, .about-services, .about-approach, .about-process {
    margin-bottom: 60px;
}

.about-history h2, .about-services h2, .about-approach h2, .about-process h2 {
    color: var(--secondary-color);
    margin-bottom: 20px;
    font-size: 2rem;
    position: relative;
    padding-bottom: 15px;
}

.about-history h2:after, .about-services h2:after, .about-approach h2:after, .about-process h2:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--secondary-color);
}

.about-history p, .about-services p, .about-approach p, .about-process p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-cta {
    background-color: #f8f9fa;
    padding: 60px;
    border-radius: 12px;
    text-align: center;
    margin-top: 60px;
}

.about-cta h2 {
    color: var(--dark-color);
    margin-bottom: 20px;
    font-size: 2.2rem;
}

.about-cta p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .about-intro {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
    
    .about-cta {
        padding: 40px 20px;
    }
}

@media (max-width: 768px) {
    .about-header {
        padding: 40px 0;
    }
    
    .about-header h1 {
        font-size: 2.2rem;
    }
    
    .about-content {
        padding: 40px 0;
    }
    
    .about-history h2, .about-services h2, .about-approach h2, .about-process h2, .about-cta h2 {
        font-size: 1.8rem;
    }
}

/* 当前页面指示器 */
nav ul li.current-page {
    color: var(--secondary-color);
    font-weight: 600;
    position: relative;
}

nav ul li.current-page:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--secondary-color);
}

nav ul li.current-page span {
    padding: 0 15px;
    display: inline-block;
}

/* 项目展示页面样式 */
.portfolio-header {
    background-color: var(--secondary-color);
    color: white;
    padding: 60px 0;
    text-align: center;
    position: relative;
    z-index: 10;
}

.portfolio-header h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.portfolio-header p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
}

.portfolio-filter {
    padding: 40px 0 20px;
    text-align: center;
}

.filter-buttons {
    display: inline-flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
}

.filter-btn {
    background: transparent;
    border: 2px solid var(--secondary-color);
    color: var(--secondary-color);
    padding: 8px 16px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
}

.filter-btn:hover, .filter-btn.active {
    background-color: var(--secondary-color);
    color: white;
}

.portfolio-gallery {
    padding: 20px 0 60px;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.portfolio-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.portfolio-item:hover {
    transform: translateY(-10px);
}

.portfolio-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(0deg, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 100%);
    color: white;
    padding: 20px;
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.3s;
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
    opacity: 1;
}

.portfolio-overlay h3 {
    margin-bottom: 5px;
    font-size: 1.3rem;
}

.portfolio-overlay p {
    margin-bottom: 10px;
    font-size: 0.9rem;
    opacity: 0.8;
}

.portfolio-link {
    display: inline-block;
    color: white;
    text-decoration: none;
    background-color: var(--secondary-color);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.portfolio-link:hover {
    background-color: #c29365;
}

.portfolio-cta {
    background-color: #f8f9fa;
    padding: 60px 0;
    text-align: center;
    margin-top: 20px;
}

.portfolio-cta h2 {
    color: var(--dark-color);
    margin-bottom: 20px;
    font-size: 2.2rem;
}

.portfolio-cta p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    .portfolio-header {
        padding: 40px 0;
    }
    
    .portfolio-header h1 {
        font-size: 2.2rem;
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 20px;
    }
    
    .portfolio-item img {
        height: 250px;
    }
    
    .portfolio-cta h2 {
        font-size: 1.8rem;
    }
    
    .portfolio-cta p {
        font-size: 1.1rem;
    }
}

/* 服务页面样式 */
.services-header {
    background-color: var(--secondary-color);
    color: white;
    padding: 60px 0;
    text-align: center;
    position: relative;
}

.services-header h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.services-header p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
}

.services-content {
    padding: 60px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

.service-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: center;
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.service-item:nth-child(even) {
    direction: rtl;
}

.service-item:nth-child(even) .service-info {
    direction: ltr;
}

.service-item img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.service-info {
    padding: 30px;
}

.service-info h2 {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: 2rem;
}

.service-info p {
    margin-bottom: 20px;
    line-height: 1.7;
}

.services-process {
    background-color: #f8f9fa;
    padding: 60px 0;
}

.services-process h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.2rem;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.process-step {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    position: relative;
}

.step-number {
    background-color: var(--secondary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: bold;
    margin: 0 auto 20px;
}

.process-step h3 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

.services-cta {
    background-color: var(--secondary-color);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.services-cta h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.services-cta p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 992px) {
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .services-header {
        padding: 40px 0;
    }
    
    .services-header h1 {
        font-size: 2.2rem;
    }
    
    .service-item {
        grid-template-columns: 1fr;
    }
    
    .service-item:nth-child(even) {
        direction: ltr;
    }
    
    .service-item img {
        height: 300px;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .services-cta h2 {
        font-size: 1.8rem;
    }
}

/* 项目卡片内容区样式优化 */
.portfolio-item-content {
    padding: 24px;
    background: #fff;
    transition: background-color 0.3s ease;
}

.portfolio-item:hover .portfolio-item-content {
    background-color: #f8f9fa;
}

.portfolio-item h3 {
    margin: 0 0 12px 0;
    color: #333;
    font-size: 20px;
    font-weight: 600;
    line-height: 1.4;
}

.portfolio-item p {
    margin: 0;
    color: #666;
    font-size: 15px;
    line-height: 1.6;
    letter-spacing: 0.3px;
    min-height: 48px; /* 确保所有描述文本有一致的最小高度 */
}

/* 调整卡片边距和阴影 */
.portfolio-item {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 10px;
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 20px rgba(0,0,0,0.12);
}

/* 调整卡片网格布局 */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
    margin: 40px 0;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .portfolio-item-content {
        padding: 20px;
    }
}

@media (max-width: 576px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .portfolio-item h3 {
        font-size: 18px;
        margin-bottom: 8px;
    }
}