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

body {
    font-family: "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* 头部样式 */
.header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo h1 {
    font-size: 24px;
    color: #1a73e8;
}

.main-nav {
    position: relative;
}

.main-nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav ul li {
    margin-left: 30px;
}

.main-nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
    font-size: 16px;
    padding: 5px 0;
    position: relative;
}

.main-nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
    transition: width 0.3s ease;
}

.main-nav ul li a:hover {
    color: #1a73e8;
}

.main-nav ul li a:hover::after {
    width: 100%;
}

/* 移动端导航按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: #1a73e8;
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .menu-toggle {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: #fff;
        box-shadow: -2px 0 5px rgba(0,0,0,0.1);
        transition: right 0.3s ease;
        z-index: 1000;
    }

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

    .main-nav ul {
        flex-direction: column;
        padding: 80px 20px 20px;
    }

    .main-nav ul li {
        margin: 0;
        padding: 10px 0;
        border-bottom: 1px solid #eee;
    }

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

    .main-nav ul li a {
        display: block;
        font-size: 16px;
        padding: 10px 0;
    }

    .main-nav ul li a::after {
        display: none;
    }

    /* 菜单按钮动画 */
    .menu-toggle.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    /* 遮罩层 */
    .nav-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.5);
        z-index: 999;
    }

    .nav-overlay.active {
        display: block;
    }
}

@media (max-width: 768px) {
    .header .container {
        padding: 12px 15px;
    }

    .logo h1 {
        font-size: 20px;
    }

    .main-nav {
        width: 260px;
    }

    .main-nav ul {
        padding: 70px 15px 15px;
    }

    .main-nav ul li a {
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .header .container {
        padding: 10px;
    }

    .logo h1 {
        font-size: 18px;
    }

    .menu-toggle {
        width: 25px;
        height: 18px;
    }

    .menu-toggle span {
        height: 2px;
    }

    .main-nav {
        width: 240px;
    }

    .main-nav ul {
        padding: 60px 12px 12px;
    }

    .main-nav ul li {
        padding: 8px 0;
    }

    .main-nav ul li a {
        font-size: 14px;
        padding: 8px 0;
    }
}

/* 英雄区域样式 */
.hero {
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: #fff;
    padding: 150px 0 100px;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.hero-text {
    flex: 1;
    text-align: left;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0px);
    }
}

.hero-text h2 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero-text p {
    font-size: 24px;
    margin-bottom: 40px;
}

.hero-stats {
    display: flex;
    gap: 60px;
    margin-bottom: 40px;
}

.stat-item {
    text-align: left;
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 10px;
}

.stat-text {
    font-size: 18px;
    opacity: 0.9;
}

.cta-buttons {
    text-align: left;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
    margin: 0 10px;
}

.btn-primary {
    background-color: #fff;
    color: #1a73e8;
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid #fff;
    color: #fff;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* 服务区域样式 */
.services {
    padding: 80px 0;
    background: linear-gradient(to bottom, #f8f9fa 0%, #ffffff 100%);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
}

.section-title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 60px;
    color: #1a73e8;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
    border-radius: 3px;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 20px;
    position: relative;
}

.service-grid::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #1a73e8, transparent);
}

.service-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 280px;
    border: 1px solid rgba(26, 115, 232, 0.1);
    position: relative;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.service-card:hover::before {
    opacity: 1;
}

.service-header {
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: #fff;
    padding: 15px;
    text-align: center;
    position: relative;
}

.service-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: rgba(255, 255, 255, 0.3);
}

.service-icon {
    font-size: 24px;
    margin-bottom: 8px;
    display: inline-block;
    padding: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.service-header h3 {
    font-size: 16px;
    margin: 0;
    color: #fff;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.service-body {
    padding: 12px;
    flex-grow: 1;
    background: #fff;
}

.service-features ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-features li {
    padding: 6px 0;
    border-bottom: 1px solid #eee;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: #444;
    transition: color 0.3s ease;
}

.service-features li:hover {
    color: #1a73e8;
}

.service-features li:last-child {
    border-bottom: none;
}

.feature-icon {
    font-size: 12px;
    min-width: 14px;
    text-align: center;
    color: #1a73e8;
}

.service-footer {
    padding: 10px 12px;
    background: #f8f9fa;
    text-align: center;
    border-top: 1px solid #eee;
}

.service-footer .btn {
    width: 100%;
    padding: 8px;
    font-size: 14px;
    background: #1a73e8;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.service-footer .btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

.service-footer .btn:hover {
    background: #0d47a1;
    transform: translateY(-2px);
}

.service-footer .btn:hover::after {
    left: 100%;
}

/* 流程区域样式 */
.process {
    padding: 80px 0;
    background: linear-gradient(to bottom, #ffffff 0%, #f8f9fa 100%);
    position: relative;
}

.process::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
    z-index: 1;
}

.step {
    text-align: center;
    padding: 30px 20px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
    border: 1px solid rgba(26, 115, 232, 0.1);
}

.step:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 20px;
    position: relative;
    z-index: 3;
    box-shadow: 0 4px 15px rgba(26, 115, 232, 0.3);
}

.step h3 {
    color: #1a73e8;
    font-size: 18px;
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 10px;
}

.step h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
}

.step p {
    color: #666;
    font-size: 14px;
    margin-bottom: 20px;
}

.step-detail {
    margin-top: 20px;
    text-align: left;
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
}

.step-detail ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.step-detail li {
    padding: 8px 0;
    border-bottom: 1px solid #eee;
    color: #444;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.step-detail li::before {
    content: '✓';
    color: #1a73e8;
    font-weight: bold;
}

.step-detail li:last-child {
    border-bottom: none;
}

/* 案例区域样式 */
.cases {
    padding: 80px 0;
    background: linear-gradient(to bottom, #f8f9fa 0%, #ffffff 100%);
    position: relative;
}

.cases::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.cases-grid::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #1a73e8, transparent);
}

.case-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(26, 115, 232, 0.1);
    position: relative;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.case-card:hover::before {
    opacity: 1;
}

.case-content {
    padding: 25px;
    position: relative;
}

.case-content h3 {
    color: #1a73e8;
    font-size: 18px;
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 10px;
}

.case-content h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
}

.case-content p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.case-details {
    margin-top: 20px;
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
}

.case-info {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
}

.case-info span {
    background: #fff;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    color: #444;
    border: 1px solid rgba(26, 115, 232, 0.1);
    display: flex;
    align-items: center;
    gap: 6px;
}

.case-info span::before {
    content: '✓';
    color: #1a73e8;
    font-weight: bold;
}

.case-result {
    padding-top: 15px;
    border-top: 1px solid #eee;
}

.case-result p {
    color: #1a73e8;
    font-size: 14px;
    font-weight: 500;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.case-result p::before {
    content: '→';
    color: #1a73e8;
    font-weight: bold;
}

/* 优势区域样式 */
.advantages {
    padding: 80px 0;
    background: linear-gradient(to bottom, #ffffff 0%, #f8f9fa 100%);
    position: relative;
}

.advantages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.advantages-grid::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #1a73e8, transparent);
}

.advantage-card {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(26, 115, 232, 0.1);
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.advantage-card:hover::before {
    opacity: 1;
}

.advantage-icon {
    font-size: 40px;
    margin-bottom: 20px;
    display: inline-block;
    padding: 15px;
    background: linear-gradient(135deg, rgba(26, 115, 232, 0.1) 0%, rgba(13, 71, 161, 0.1) 100%);
    border-radius: 50%;
    color: #1a73e8;
    position: relative;
}

.advantage-icon::after {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 2px solid rgba(26, 115, 232, 0.1);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.2);
        opacity: 0;
    }
}

.advantage-card h3 {
    color: #1a73e8;
    margin-bottom: 20px;
    font-size: 18px;
    position: relative;
    padding-bottom: 10px;
}

.advantage-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
}

.advantage-card ul {
    list-style: none;
    text-align: left;
    padding: 0;
    margin: 0;
}

.advantage-card li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
    color: #444;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.3s ease;
}

.advantage-card li::before {
    content: '✓';
    color: #1a73e8;
    font-weight: bold;
}

.advantage-card li:hover {
    color: #1a73e8;
}

.advantage-card li:last-child {
    border-bottom: none;
}

/* FAQ区域样式 */
.faq {
    padding: 80px 0;
    background: linear-gradient(to bottom, #f8f9fa 0%, #ffffff 100%);
    position: relative;
}

.faq::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.faq-grid::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #1a73e8, transparent);
}

.faq-item {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(26, 115, 232, 0.1);
    position: relative;
    overflow: hidden;
}

.faq-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.faq-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.faq-item:hover::before {
    opacity: 1;
}

.faq-item h3 {
    color: #1a73e8;
    font-size: 18px;
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.faq-item h3::before {
    content: 'Q';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: #fff;
    border-radius: 50%;
    font-size: 14px;
    font-weight: bold;
}

.faq-item h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
}

.faq-item p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
    padding-left: 34px;
}

.faq-details {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
}

.faq-details h4 {
    color: #1a73e8;
    margin-bottom: 15px;
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.faq-details h4::before {
    content: 'A';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: #fff;
    border-radius: 50%;
    font-size: 12px;
    font-weight: bold;
}

.faq-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.faq-details li {
    padding: 8px 0;
    border-bottom: 1px solid #eee;
    color: #444;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.3s ease;
}

.faq-details li::before {
    content: '•';
    color: #1a73e8;
    font-weight: bold;
}

.faq-details li:hover {
    color: #1a73e8;
}

.faq-details li:last-child {
    border-bottom: none;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .faq-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .faq {
        padding: 60px 0;
    }

    .faq-item {
        padding: 20px;
    }

    .faq-item h3 {
        font-size: 16px;
    }

    .faq-item p {
        font-size: 13px;
        padding-left: 30px;
    }

    .faq-details {
        padding: 12px;
    }

    .faq-details h4 {
        font-size: 15px;
    }

    .faq-details li {
        font-size: 12px;
        padding: 6px 0;
    }
}

@media (max-width: 480px) {
    .faq-item {
        padding: 15px;
    }

    .faq-item h3 {
        font-size: 15px;
    }

    .faq-item h3::before {
        width: 20px;
        height: 20px;
        font-size: 12px;
    }

    .faq-item p {
        font-size: 12px;
        padding-left: 26px;
    }

    .faq-details {
        padding: 10px;
    }

    .faq-details h4 {
        font-size: 14px;
    }

    .faq-details h4::before {
        width: 18px;
        height: 18px;
        font-size: 11px;
    }

    .faq-details li {
        font-size: 11px;
        padding: 5px 0;
    }
}

/* 联系区域样式 */
.contact {
    padding: 80px 0;
    background: linear-gradient(to bottom, #ffffff 0%, #f8f9fa 100%);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.contact-content::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, #1a73e8, transparent);
}

.contact-info {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border: 1px solid rgba(26, 115, 232, 0.1);
    position: relative;
    overflow: hidden;
}

.contact-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
}

.contact-info h3 {
    color: #1a73e8;
    font-size: 20px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.contact-info h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
}

.contact-details {
    margin-top: 20px;
}

.contact-details p {
    color: #444;
    font-size: 14px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-details p strong {
    color: #1a73e8;
    min-width: 80px;
}

.contact-details ul {
    list-style: none;
    margin-top: 20px;
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
}

.contact-details li {
    padding: 8px 0;
    border-bottom: 1px solid #eee;
    color: #444;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.3s ease;
}

.contact-details li::before {
    content: '✓';
    color: #1a73e8;
    font-weight: bold;
}

.contact-details li:hover {
    color: #1a73e8;
}

.contact-details li:last-child {
    border-bottom: none;
}

.contact-form {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border: 1px solid rgba(26, 115, 232, 0.1);
    position: relative;
    overflow: hidden;
}

.contact-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
}

.contact-form h3 {
    color: #1a73e8;
    font-size: 20px;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.contact-form h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid rgba(26, 115, 232, 0.2);
    border-radius: 8px;
    font-size: 14px;
    color: #444;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #1a73e8;
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
    background: #fff;
}

.form-group textarea {
    height: 120px;
    resize: vertical;
}

.contact-form .btn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.contact-form .btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

.contact-form .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(26, 115, 232, 0.3);
}

.contact-form .btn:hover::after {
    left: 100%;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .contact-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .contact-info {
        order: 2;
    }

    .contact-form {
        order: 1;
    }
}

@media (max-width: 768px) {
    .contact {
        padding: 60px 0;
    }

    .contact-info,
    .contact-form {
        padding: 20px;
    }

    .contact-info h3,
    .contact-form h3 {
        font-size: 18px;
    }

    .contact-details p {
        font-size: 13px;
    }

    .contact-details li {
        font-size: 12px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 10px 12px;
        font-size: 13px;
    }

    .contact-form .btn {
        padding: 10px;
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .contact-info,
    .contact-form {
        padding: 15px;
    }

    .contact-info h3,
    .contact-form h3 {
        font-size: 16px;
    }

    .contact-details p {
        font-size: 12px;
    }

    .contact-details li {
        font-size: 11px;
    }

    .form-group {
        margin-bottom: 15px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 8px 10px;
        font-size: 12px;
    }

    .contact-form .btn {
        padding: 8px;
        font-size: 14px;
    }
}

/* 页脚样式 */
.footer {
    background: #1a73e8;
    color: #fff;
    padding: 40px 0;
}

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

.footer-info h3 {
    margin-bottom: 10px;
}

.footer-features {
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.footer-features span {
    background: rgba(255, 255, 255, 0.1);
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 14px;
}

.footer-contact p {
    margin: 5px 0;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .process-steps::before {
        display: none;
    }

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

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

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        text-align: center;
    }

    .main-nav ul {
        margin-top: 20px;
        flex-direction: column;
    }

    .main-nav ul li {
        margin: 10px 0;
    }

    .hero-content {
        flex-direction: column;
        text-align: center;
    }

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

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

    .stat-item {
        text-align: center;
    }

    .cta-buttons {
        text-align: center;
    }

    .hero-image {
        margin-top: 40px;
    }

    .hero-image img {
        max-width: 80%;
    }

    .section-title {
        font-size: 24px;
        margin-bottom: 30px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

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

    .footer-features {
        justify-content: center;
    }

    .service-card {
        height: 240px;
    }

    .service-header {
        padding: 12px;
    }

    .service-icon {
        font-size: 22px;
    }

    .service-header h3 {
        font-size: 15px;
    }

    .service-body {
        padding: 10px;
    }

    .service-features li {
        font-size: 12px;
        padding: 5px 0;
    }

    .process {
        padding: 60px 0;
    }

    .step {
        padding: 20px 15px;
    }

    .step-number {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }

    .step h3 {
        font-size: 16px;
    }

    .step p {
        font-size: 13px;
    }

    .step-detail {
        padding: 12px;
    }

    .step-detail li {
        font-size: 12px;
        padding: 6px 0;
    }

    .case-content {
        padding: 20px;
    }

    .case-content h3 {
        font-size: 16px;
    }

    .case-content p {
        font-size: 13px;
    }

    .case-details {
        padding: 12px;
    }

    .case-info span {
        font-size: 12px;
        padding: 5px 10px;
    }

    .case-result p {
        font-size: 13px;
    }

    .advantages {
        padding: 60px 0;
    }

    .advantage-card {
        padding: 20px;
    }

    .advantage-icon {
        font-size: 32px;
        padding: 12px;
        margin-bottom: 15px;
    }

    .advantage-card h3 {
        font-size: 16px;
        margin-bottom: 15px;
    }

    .advantage-card li {
        font-size: 13px;
        padding: 8px 0;
    }
}

@media (max-width: 480px) {
    .hero-text h2 {
        font-size: 28px;
    }

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

    .hero-stats {
        flex-direction: column;
        gap: 30px;
    }

    .hero-image img {
        max-width: 100%;
    }

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

    .service-card {
        height: 220px;
    }

    .service-header {
        padding: 10px;
    }

    .service-icon {
        font-size: 20px;
    }

    .service-header h3 {
        font-size: 14px;
    }

    .service-features li {
        font-size: 11px;
        padding: 4px 0;
    }

    .feature-icon {
        font-size: 11px;
    }

    .section-title {
        font-size: 22px;
        margin-bottom: 25px;
    }

    .process-steps {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .step {
        padding: 15px;
    }

    .step-number {
        width: 40px;
        height: 40px;
        font-size: 18px;
        margin-bottom: 15px;
    }

    .step h3 {
        font-size: 15px;
        margin-bottom: 10px;
    }

    .step p {
        font-size: 12px;
        margin-bottom: 15px;
    }

    .step-detail {
        padding: 10px;
    }

    .step-detail li {
        font-size: 11px;
        padding: 5px 0;
    }

    .cases-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .case-content {
        padding: 15px;
    }

    .case-content h3 {
        font-size: 15px;
    }

    .case-content p {
        font-size: 12px;
    }

    .case-details {
        padding: 10px;
    }

    .case-info {
        gap: 8px;
    }

    .case-info span {
        font-size: 11px;
        padding: 4px 8px;
    }

    .case-result p {
        font-size: 12px;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .advantage-card {
        padding: 15px;
    }

    .advantage-icon {
        font-size: 28px;
        padding: 10px;
        margin-bottom: 12px;
    }

    .advantage-card h3 {
        font-size: 15px;
        margin-bottom: 12px;
    }

    .advantage-card li {
        font-size: 12px;
        padding: 6px 0;
    }
}