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

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "WenQuanYi Micro Hei", sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.primary-btn {
    background-color: #007bff;
    color: #fff;
}

.primary-btn:hover {
    background-color: #0069d9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 123, 255, 0.3);
}

.secondary-btn {
    background-color: #6c757d;
    color: #fff;
}

.secondary-btn:hover {
    background-color: #5a6268;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(108, 117, 125, 0.3);
}

/* 部分标题 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 15px;
    color: #333;
}

.section-header p {
    font-size: 20px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* 导航栏 - 全新设计 */
.navbar {
    background: transparent;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 20px 0;
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0;
    height: 60px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    height: 100%;
}

.logo img {
    height: 40px;
    transition: all 0.3s ease;
    filter: brightness(0) invert(1);
}

.logo-text {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
    letter-spacing: 1px;
    transition: color 0.3s ease;
}

.nav-menu {
    height: 100%;
}

.nav-menu ul {
    display: flex;
    list-style: none;
    align-items: center;
    height: 100%;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    margin: 0;
    height: 100%;
    display: flex;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.9);
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    letter-spacing: 0.5px;
}

.nav-link:hover {
    color: #ffffff;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: #ffffff;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 50%;
}

.navbar-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: #ffffff;
    padding: 10px;
    transition: all 0.3s ease;
}

.navbar-toggle:hover {
    opacity: 0.8;
}

/* 滚动时导航栏样式 */
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    padding: 0;
}

.navbar.scrolled .logo img {
    height: 36px;
    filter: none;
}

.navbar.scrolled .logo-text {
    color: #1890ff;
}

.navbar.scrolled .nav-link {
    color: rgba(0, 0, 0, 0.75);
}

.navbar.scrolled .nav-link:hover {
    color: #1890ff;
}

.navbar.scrolled .nav-link::after {
    background-color: #1890ff;
}

.navbar.scrolled .navbar-toggle {
    color: #333333;
}

/* 英雄区 */
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    padding: 100px 0;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(10, 25, 47, 0.85) 0%, rgba(23, 42, 69, 0.85) 100%);
    z-index: 1;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 20px;
}

.hero-text {
    width: 100%;
}

.hero-text h1 {
    font-size: 80px;
    font-weight: 700;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
    line-height: 1.1;
    background: linear-gradient(135deg, #ffffff 0%, #64ffda 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text h2 {
    font-size: 40px;
    font-weight: 500;
    margin-bottom: 24px;
    animation: fadeInUp 1s ease 0.2s both;
    color: #64ffda;
}

.hero-text p {
    font-size: 22px;
    margin-bottom: 48px;
    animation: fadeInUp 1s ease 0.4s both;
    color: #a8b2d1;
    line-height: 1.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 24px;
    justify-content: center;
    animation: fadeInUp 1s ease 0.6s both;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    padding: 16px 40px;
    font-size: 17px;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 160px;
}

.hero-buttons .primary-btn {
    background: linear-gradient(135deg, #1890ff 0%, #096dd9 100%);
    box-shadow: 0 4px 20px rgba(24, 144, 255, 0.5);
}

.hero-buttons .primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(24, 144, 255, 0.6);
}

.hero-buttons .secondary-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 核心优势 */
.core-advantages {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.advantage-item {
    background-color: #fff;
    border-radius: 12px;
    padding: 40px 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.advantage-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    box-shadow: 0 10px 20px rgba(0, 123, 255, 0.2);
    transition: all 0.3s ease;
}

.advantage-item:hover .advantage-icon {
    transform: scale(1.1);
    box-shadow: 0 15px 30px rgba(0, 123, 255, 0.3);
}

.advantage-icon i {
    font-size: 32px;
    color: #fff;
}

.advantage-item h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.advantage-item p {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
}

/* 关于我们 */
.about {
    padding: 100px 0;
    background: #ffffff;
}

.about-content {
    display: flex;
    align-items: flex-start;
    gap: 60px;
}

.about-left {
    flex: 0 0 45%;
    max-width: 45%;
}

.about-image {
    margin-bottom: 30px;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    display: block;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stat-item {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    padding: 25px 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid #e8e8e8;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(24, 144, 255, 0.15);
    border-color: #1890ff;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: #1890ff;
    margin-bottom: 8px;
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: #666666;
    font-weight: 500;
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #1a1a1a;
}

.about-text p {
    font-size: 16px;
    line-height: 1.8;
    color: #666666;
    margin-bottom: 20px;
    text-align: justify;
}

.about-features {
    list-style: none;
    padding: 0;
    margin: 30px 0;
}

.about-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 16px;
    color: #333333;
}

.about-features li i {
    color: #1890ff;
    font-size: 20px;
    flex-shrink: 0;
}

.about-text .btn {
    margin-top: 10px;
}

/* 服务项目 */
.services {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-item {
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background-color: #e3f2fd;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
}

.service-item:hover .service-icon {
    background-color: #007bff;
}

.service-icon i {
    font-size: 32px;
    color: #007bff;
    transition: all 0.3s ease;
}

.service-item:hover .service-icon i {
    color: #fff;
}

.service-item h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.service-item p {
    font-size: 16px;
    line-height: 1.6;
    color: #666;
}

/* 案例展示 */
.cases {
    padding: 100px 0;
    background-color: #fff;
}

.case-filter {
    display: flex;
    justify-content: center;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    padding: 10px 20px;
    margin: 0 10px 10px 0;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    background-color: #e9ecef;
}

.filter-btn.active {
    background-color: #007bff;
    color: #fff;
    border-color: #007bff;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

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

.case-item:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.case-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.case-item:hover .case-image img {
    transform: scale(1.1);
}

.case-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.6), transparent);
    padding: 30px 20px 20px;
    color: #fff;
    transition: all 0.4s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    opacity: 0;
}

.case-item:hover .case-overlay {
    opacity: 1;
    background: linear-gradient(to top, rgba(0, 123, 255, 0.9), rgba(0, 123, 255, 0.6), transparent);
}

.case-overlay h4 {
    color: #fff;
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 10px;
    z-index: 2;
}

.case-overlay p {
    color: #fff;
    font-size: 14px;
    opacity: 0.9;
    margin: 0;
    z-index: 2;
    line-height: 1.5;
}

/* 客户评价 */
.testimonials {
    padding: 100px 0;
    background-color: #f8f9fa;
    position: relative;
    overflow: hidden;
}

.testimonials::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, rgba(255,255,255,0), #f8f9fa);
    z-index: 1;
}

.testimonials-container {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    position: relative;
    z-index: 2;
}

.testimonial-card {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    padding: 40px;
    max-width: 380px;
    flex: 1;
    min-width: 300px;
    position: relative;
    transition: all 0.4s ease;
}

.testimonial-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.testimonial-quote {
    position: absolute;
    top: -15px;
    left: 30px;
    width: 60px;
    height: 60px;
    background-color: #007bff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.testimonial-quote i {
    color: #fff;
    font-size: 24px;
}

.testimonial-text {
    margin-top: 30px;
    margin-bottom: 30px;
}

.testimonial-text p {
    font-size: 18px;
    line-height: 1.8;
    color: #666;
    font-style: italic;
}

.testimonial-author {
    border-top: 1px solid #f0f0f0;
    padding-top: 20px;
    display: flex;
    align-items: center;
}

.author-details h5 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 5px;
    color: #333;
}

.author-details p {
    font-size: 14px;
    color: #666;
    margin: 0;
}

/* 合作伙伴 */
.partners {
    padding: 80px 0;
    background: #f8f9fa;
}

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

.partner-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.partner-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.partner-card a {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.partner-card img {
    max-width: 180px;
    max-height: 80px;
    object-fit: contain;
    margin-bottom: 15px;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: all 0.3s ease;
}

.partner-card:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

.partner-card span {
    font-size: 16px;
    font-weight: 600;
    color: #333333;
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
}

.contact-info {
    flex: 1;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.info-item {
    background-color: #fff;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.info-icon {
    width: 50px;
    height: 50px;
    background-color: #e3f2fd;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-icon i {
    font-size: 24px;
    color: #007bff;
}

.info-item h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #333;
}

.info-item p {
    font-size: 16px;
    line-height: 1.6;
    color: #666;
}

.contact-form {
    flex: 1;
    min-width: 300px;
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

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

/* 页脚 */
.footer {
    background: linear-gradient(135deg, #0a192f 0%, #172a45 100%);
    color: #a8b2d1;
    padding: 0;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding: 50px 0 40px;
}

.footer-col h4 {
    color: #ffffff;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, #1890ff, #64ffda);
}

.footer-about p {
    font-size: 14px;
    line-height: 1.8;
    color: #a8b2d1;
    margin-top: 15px;
}

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

.footer-logo-wrapper img {
    height: 36px;
    width: auto;
}

.footer-logo-text {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

.footer-col ul li a {
    color: #a8b2d1;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
}

.footer-col ul li a:hover {
    color: #64ffda;
    transform: translateX(5px);
}

.contact-info-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px !important;
}

.contact-info-list li i {
    color: #1890ff;
    margin-top: 3px;
    flex-shrink: 0;
}

.contact-info-list li span {
    font-size: 14px;
    color: #a8b2d1;
}

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: #a8b2d1;
    font-size: 16px;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-link:hover {
    background: #1890ff;
    color: #ffffff;
    transform: translateY(-3px);
}

.footer-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-bottom p {
    font-size: 14px;
    color: #a8b2d1;
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal a {
    color: #a8b2d1;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-legal a:hover {
    color: #64ffda;
}

/* 响应式调整 */
@media (max-width: 992px) {
    /* 导航栏 */
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 300px;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        padding: 80px 30px 30px;
        transition: right 0.3s ease;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu ul {
        flex-direction: column;
        gap: 0;
    }

    .nav-menu ul li {
        border-bottom: 1px solid #f0f0f0;
    }

    .nav-menu ul li:last-child {
        border-bottom: none;
    }

    .nav-link {
        color: rgba(0, 0, 0, 0.75);
        padding: 15px 0;
        display: block;
    }

    .nav-link::after {
        background-color: #1890ff;
    }

    .navbar-toggle {
        display: block;
    }

    .navbar.scrolled .navbar-toggle {
        color: #333333;
    }

    /* Hero区域 */
    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 56px;
    }

    .hero-text h2 {
        font-size: 32px;
    }

    .hero-text p {
        font-size: 18px;
    }

    .hero-buttons {
        justify-content: center;
    }

    /* 核心优势 */
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }

    /* 关于我们 */
    .about-content {
        flex-direction: column;
        gap: 40px;
    }

    .about-left {
        flex: none;
        max-width: 100%;
    }

    .about-image img {
        max-width: 600px;
        margin: 0 auto;
        display: block;
    }

    .about-text {
        text-align: center;
    }

    .about-text h3 {
        font-size: 28px;
    }

    .about-features li {
        justify-content: center;
    }

    .about-text .btn {
        margin: 0 auto;
        display: block;
        width: fit-content;
    }

    /* 服务项目 */
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }

    /* 案例展示 */
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    /* 客户评价 */
    .testimonials-container {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    /* 联系我们 */
    .contact-content {
        flex-direction: column;
        gap: 40px;
    }

    .contact-info,
    .contact-form {
        flex: none;
        width: 100%;
    }

    /* 页脚 */
    .footer-top {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
        padding: 40px 0 30px;
    }
    
    .footer-about {
        grid-column: 1 / -1;
        text-align: center;
    }
    
    .footer-logo-wrapper {
        justify-content: center;
    }
}

/* 手机设备 (最大768px) */
@media (max-width: 768px) {
    /* 全局容器 */
    .container {
        padding: 0 20px;
    }

    /* 导航栏 */
    .navbar {
        padding: 15px 0;
    }

    .navbar.scrolled {
        padding: 12px 0;
    }

    .logo-text {
        font-size: 14px;
    }

    .logo img {
        height: 32px;
    }

    /* Hero区域 */
    .hero {
        min-height: auto;
        padding: 100px 0 60px;
    }

    .hero-text h1 {
        font-size: 42px;
    }

    .hero-text h2 {
        font-size: 24px;
    }

    .hero-text p {
        font-size: 16px;
        margin-bottom: 30px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .hero-buttons .btn {
        width: 100%;
        text-align: center;
    }

    /* 核心优势 */
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .advantage-item {
        padding: 30px 20px;
    }

    .advantage-icon {
        width: 60px;
        height: 60px;
        font-size: 28px;
    }

    .advantage-item h3 {
        font-size: 20px;
    }

    /* 关于我们 */
    .about {
        padding: 60px 0;
    }

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .stat-item {
        padding: 20px 15px;
    }

    .stat-number {
        font-size: 28px;
    }

    .stat-label {
        font-size: 13px;
    }

    .about-text h3 {
        font-size: 26px;
    }

    .about-text p {
        font-size: 15px;
        text-align: left;
    }

    .about-features {
        margin: 25px 0;
    }

    .about-features li {
        justify-content: flex-start;
        font-size: 15px;
    }

    /* 服务项目 */
    .services {
        padding: 60px 0;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .service-item {
        padding: 30px 25px;
    }

    .service-icon {
        width: 70px;
        height: 70px;
        font-size: 32px;
    }

    .service-item h3 {
        font-size: 22px;
    }

    /* 案例展示 */
    .cases {
        padding: 60px 0;
    }

    .cases-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .case-item {
        max-width: 500px;
        margin: 0 auto;
        width: 100%;
    }

    /* 客户评价 */
    .testimonials {
        padding: 60px 0;
    }

    .testimonial-card {
        padding: 30px 25px;
    }

    /* 联系我们 */
    .contact {
        padding: 60px 0;
    }

    .contact-info {
        gap: 25px;
    }

    .info-icon {
        width: 50px;
        height: 50px;
        font-size: 24px;
    }

    .info-item h4 {
        font-size: 16px;
    }

    .info-item p {
        font-size: 14px;
    }

    .contact-form form {
        padding: 25px;
    }

    .form-group input,
    .form-group textarea {
        padding: 12px 15px;
        font-size: 14px;
    }

    .contact-form .btn {
        width: 100%;
    }

    /* 页脚 */
    .footer {
        padding: 0;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 30px 0 25px;
    }

    .footer-col {
        text-align: center;
    }

    .footer-col h4 {
        font-size: 16px;
        margin-bottom: 15px;
    }

    .footer-col h4::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .footer-about p {
        font-size: 14px;
    }

    .footer-col ul li {
        margin-bottom: 8px;
    }

    .footer-col ul li a {
        font-size: 14px;
    }

    .footer-col ul li a:hover {
        transform: none;
    }

    .contact-info-list li {
        justify-content: center;
        margin-bottom: 10px !important;
    }

    .footer-social {
        justify-content: center;
        margin-top: 15px;
    }

    .social-link {
        width: 38px;
        height: 38px;
        font-size: 18px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        padding: 20px 0;
        gap: 12px;
    }

    .footer-bottom p {
        font-size: 13px;
    }

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

    .footer-legal a {
        font-size: 13px;
    }
}

/* 小屏手机 (最大480px) */
@media (max-width: 480px) {
    /* 导航栏 */
    .logo-text {
        font-size: 12px;
        letter-spacing: 0;
    }

    /* Hero区域 */
    .hero-text h1 {
        font-size: 32px;
    }

    .hero-text h2 {
        font-size: 20px;
    }

    .hero-text p {
        font-size: 15px;
    }

    /* 关于我们 */
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .stat-item {
        padding: 15px 10px;
    }

    .stat-number {
        font-size: 24px;
    }

    .stat-label {
        font-size: 12px;
    }

    /* 标题 */
    .section-header h2 {
        font-size: 26px;
    }

    .section-header p {
        font-size: 14px;
    }
}

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}