/* 全局样式 */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --text-color: #333;
    --text-light: #7f8c8d;
    --font-main: 'Helvetica Neue', Arial, sans-serif;
    --transition: all 0.3s ease;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --border-radius: 5px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    line-height: 1.6;
    color: var(--text-color);
    background-color: #f9f9f9;
}

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

.section {
    padding: 70px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
}

.section-title h2 {
    font-size: 2.2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

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

.section-title p {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 25px;
    background-color: var(--secondary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: bold;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* 导航菜单样式 */
.main-nav {
    flex: 1;
    margin: 0 20px;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    justify-content: center;
}

.nav-menu li {
    margin: 0 15px;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    padding: 5px 0;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
}

.nav-menu a i {
    margin-right: 5px;
}

.nav-menu a:hover {
    color: rgba(255, 255, 255, 0.9);
}

/* 移动端菜单按钮 - 完全隐藏 */
.mobile-menu-toggle {
    display: none !important; /* 确保永远隐藏 */
}

/* 简单响应式导航适配 */
@media (max-width: 992px) {
    .main-nav {
        display: none; /* 移动端直接隐藏整个导航 */
    }
}

/* 菜单遮罩层 */
.menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 98;
}

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

/* 更新头部样式 */
.header {
    background-color: var(--primary-color);
    color: white;
    position: relative;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    transition: all 0.3s ease;
}

/* Logo样式 */
.logo {
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

.logo h1 {
    margin: 0;
    font-size: 2rem;
    font-weight: bold;
    color: white;
}

.logo .slogan {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.redirect-button .btn {
    padding: 8px 16px;
    font-size: 0.9rem;
    white-space: nowrap;
    background-color: var(--accent-color);
}

.redirect-button .btn:hover {
    background-color: #c0392b;
}

@media (max-width: 768px) {
    .header .container {
        padding: 10px 20px;
    }
    
    .logo h1 {
        font-size: 1.5rem;
    }
    
    .logo .slogan {
        font-size: 0.9rem;
    }
}

/* 移动端导航适配 */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }
    
    .nav-menu li {
        margin: 0 10px;
    }
    
    .service-card, .advantage-card, .case-card {
        flex-basis: calc(33.33% - 20px);
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 720px;
    }
    
    .service-card, .advantage-card, .case-card {
        flex-basis: calc(50% - 20px);
    }
    
    .intro-content {
        flex-direction: column;
    }
    
    .intro-text, .district-streets {
        width: 100%;
        margin-right: 0;
        margin-bottom: 30px;
    }
    
    .section {
        padding: 60px 0;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 50px 0;
    }
    
    .section-title h2 {
        font-size: 1.8rem;
    }
    
    .header .container {
        flex-direction: column;
        text-align: center;
    }
    
    .logo {
        margin-bottom: 20px;
    }
    
    .process-timeline:before {
        left: 15px;
    }
    
    .process-step {
        padding: 25px 25px 25px 60px;
    }
    
    .process-icon {
        left: -17px;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .footer-content {
        gap: 30px;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }
    
    .logo h1 {
        font-size: 1.3rem;
    }
    
    .logo .slogan {
        font-size: 0.8rem;
    }
    
    .section-title h2 {
        font-size: 1.5rem;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .streets-list {
        column-count: 1;
    }
    
    .breadcrumb-list {
        flex-wrap: wrap;
    }
    
    .consultation-form .form-row {
        flex-direction: column;
    }
    
    .consultation-form .form-group {
        width: 100%;
        margin-right: 0;
    }
}

/* 面包屑导航 */
.breadcrumb {
    background-color: #f5f5f5;
    padding: 15px 0;
    border-bottom: 1px solid #e0e0e0;
}

.breadcrumb-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
}

.breadcrumb-list li {
    display: inline;
    font-size: 0.9rem;
}

.breadcrumb-list li:not(:last-child):after {
    content: '/';
    margin: 0 10px;
    color: var(--text-light);
}

.breadcrumb-list a {
    color: var(--secondary-color);
    text-decoration: none;
}

.breadcrumb-list a:hover {
    text-decoration: underline;
}

/* 服务项目样式 */
.services-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px;
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.service-title {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.service-description {
    color: var(--text-light);
    margin-bottom: 20px;
}

.service-items {
    list-style: none;
    text-align: left;
}

.service-items li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
}

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

/* 优势特点样式 */
.advantages {
    background-color: #f0f4f8;
}

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

.advantage-card {
    text-align: center;
    padding: 30px;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.advantage-icon {
    font-size: 2.2rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.advantage-title {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.advantage-description {
    color: var(--text-light);
}

/* 调查流程样式 */
.process-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 0;
}

.process-timeline:before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 20px;
    width: 4px;
    background: linear-gradient(to bottom, var(--secondary-color), var(--primary-color));
    border-radius: 4px;
}

.process-step {
    position: relative;
    padding-left: 60px;
    margin-bottom: 40px;
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px 30px 30px 70px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border-left: 3px solid var(--secondary-color);
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.process-step:last-child {
    margin-bottom: 0;
}

.process-icon {
    position: absolute;
    left: -22px;
    top: 25px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: 0 0 0 6px white, 0 5px 15px rgba(0, 0, 0, 0.15);
    z-index: 1;
    transition: all 0.3s ease;
}

.process-step:hover .process-icon {
    transform: scale(1.1);
}

.process-title {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: 12px;
    font-weight: 600;
}

.process-description {
    color: var(--text-light);
    line-height: 1.6;
}

/* 成功案例样式 */
.cases {
    background-color: #f0f4f8;
}

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

.case-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border-bottom: 3px solid transparent;
}

.case-card:before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(to right, var(--secondary-color), var(--accent-color));
    transition: width 0.5s ease;
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.case-card:hover:before {
    width: 100%;
}

.case-icon {
    font-size: 1.8rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
    background: rgba(52, 152, 219, 0.1);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.case-title {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.case-description {
    color: var(--text-color);
    margin-bottom: 20px;
    line-height: 1.6;
}

.case-result {
    font-weight: bold;
    color: var(--accent-color);
    padding: 10px 15px;
    background-color: rgba(231, 76, 60, 0.1);
    border-radius: 4px;
    display: inline-block;
}

/* 咨询区域样式 */
.consultation {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 60px 0;
}

.consultation h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.consultation p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.consultation .btn {
    font-size: 1.1rem;
    padding: 15px 30px;
    background-color: var(--accent-color);
}

.consultation .btn:hover {
    background-color: #c0392b;
}

/* 相关区域样式 */
.related-areas {
    background-color: #f9f9f9;
}

.area-links {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.area-links a {
    color: var(--secondary-color);
    text-decoration: none;
}

.area-links a:hover {
    text-decoration: underline;
}

.related-cities, .related-districts {
    margin-top: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
}

/* 省市区列表样式 */
.intro-content {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.city-list, .district-list, .city-districts {
    margin-top: 30px;
}

.city-list h3, .district-list h3, .city-districts h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 10px;
}

.city-links, .district-links {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.city-links a, .district-links a, .district-links li {
    color: var(--secondary-color);
    text-decoration: none;
    display: block;
    padding: 8px 12px;
    border-radius: var(--border-radius);
    background-color: #f5f5f5;
    transition: var(--transition);
    text-align: center;
}

.city-links a:hover, .district-links a:hover, .district-links li:hover {
    background-color: var(--secondary-color);
    color: white;
}

/* 网站地图样式 */
.sitemap-content {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.provinces-list {
    margin-top: 30px;
}

.province-item {
    margin-bottom: 30px;
}

.province-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 10px;
}

.province-cities {
    padding-left: 20px;
}

.city-item {
    margin-bottom: 20px;
}

.city-title {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.city-districts {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
    padding-left: 20px;
}

.district-item a {
    color: var(--secondary-color);
    text-decoration: none;
}

.district-item a:hover {
    text-decoration: underline;
}

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

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

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.footer-link-group h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-link-group ul {
    list-style: none;
}

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

.footer-link-group ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-link-group ul li a:hover {
    color: white;
}

.footer-info {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

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

.record-info {
    margin-top: 20px;
}

.record-info a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-right: 20px;
    display: inline-block;
}

.record-info a img {
    vertical-align: middle;
    margin-right: 5px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    line-height: 1.6;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 45px;
    height: 45px;
    background-color: var(--secondary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: #2980b9;
    transform: translateY(-3px);
}

/* 响应式样式 */
@media (max-width: 576px) {
    .services-container,
    .advantages-container,
    .cases-container {
        grid-template-columns: 1fr;
    }
    
    .city-links, .district-links,
    .related-cities, .related-districts,
    .city-districts {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* 省份列表 */
.provinces {
    background-color: #f9f9f9;
}

.provinces-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
}

.province-item {
    background-color: #fff;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    text-align: center;
    width: calc(20% - 15px);
}

.province-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.15);
}

.province-item a {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    display: block;
}

.province-item a:hover {
    color: #3498db;
}

@media (max-width: 1200px) {
    .province-item {
        width: calc(25% - 15px);
    }
}

@media (max-width: 992px) {
    .province-item {
        width: calc(33.333% - 15px);
    }
}

@media (max-width: 768px) {
    .province-item {
        width: calc(50% - 15px);
    }
}

@media (max-width: 480px) {
    .province-item {
        width: 100%;
    }
}

/* 首页Banner区域 */
.hero-banner {
    background-color: var(--primary-color);
    background-image: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 80px 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h2 {
    font-size: 2.8rem;
    margin-bottom: 15px;
}

.hero-content h3 {
    font-size: 1.4rem;
    font-weight: normal;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.9);
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.8);
}

.hero-btn {
    padding: 15px 30px;
    font-size: 1.1rem;
    background-color: var(--accent-color);
}

.hero-btn:hover {
    background-color: #c0392b;
}

/* SEO内容区域 */
.seo-content {
    background-color: #f9f9f9;
}

.seo-text {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.seo-text h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-align: center;
}

.seo-text p {
    margin-bottom: 15px;
    color: var(--text-color);
    line-height: 1.7;
}

/* 街道列表样式 */
.district-streets {
    margin-top: 30px;
}

.district-streets h3 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.streets-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
    list-style: none;
}

.streets-list li {
    background-color: #f5f5f5;
    padding: 8px 12px;
    border-radius: var(--border-radius);
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-color);
    transition: var(--transition);
}

.streets-list li:hover {
    background-color: var(--secondary-color);
    color: white;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-content h3 {
        font-size: 1.2rem;
    }
    
    .hero-banner {
        padding: 60px 0;
    }
    
    .streets-list {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
}

@media (max-width: 576px) {
    .hero-content h2 {
        font-size: 1.8rem;
    }
    
    .hero-content h3 {
        font-size: 1rem;
    }
    
    .hero-banner {
        padding: 40px 0;
    }
    
    .streets-list {
        grid-template-columns: repeat(2, 1fr);
    }
}