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

:root {
    --primary-color: #1a56db;
    --primary-dark: #1e40af;
    --secondary-color: #0f172a;
    --accent-color: #3b82f6;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
}

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

/* 导航栏 */
.navbar {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 0;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* 英雄区 */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    margin-top: 70px;
    color: white;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 2rem;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.btn-primary {
    display: inline-block;
    background: var(--bg-white);
    color: var(--primary-color);
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.1rem;
}

/* 通用区块样式 */
section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.divider {
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    margin: 0 auto;
    border-radius: 2px;
}

.section-desc {
    text-align: center;
    color: var(--text-secondary);
    margin-top: 1rem;
    font-size: 1.1rem;
}

/* 公司简介区块 */
.about-section {
    background: var(--bg-light);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--bg-white);
    border-radius: 10px;
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* 核心优势区块 */
.advantages-section {
    background: var(--bg-white);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.advantage-card {
    background: var(--bg-light);
    padding: 2.5rem;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.advantage-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.advantage-card h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.advantage-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 服务领域区块 */
.services-section {
    background: var(--bg-light);
}

.services-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.service-left h3,
.service-right h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.client-list,
.position-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.client-list li,
.position-list li {
    padding: 0.75rem;
    background: var(--bg-white);
    border-radius: 5px;
    color: var(--text-primary);
    font-size: 0.95rem;
    border-left: 3px solid var(--primary-color);
}

.service-desc {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

/* 合作流程区块 */
.process-section {
    background: var(--bg-white);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.process-step {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 10px;
    position: relative;
    border: 1px solid var(--border-color);
}

.step-number {
    position: absolute;
    top: -15px;
    left: 20px;
    background: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.process-step h3 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1.3rem;
}

.process-step p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* CTA 区块 */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
    padding: 4rem 0;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-small {
    padding: 3rem 0;
}

.cta-small h2 {
    font-size: 2rem;
}

/* 页脚 */
.footer {
    background: var(--secondary-color);
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-info p {
    opacity: 0.8;
}

.footer-contact .contact-item {
    margin-bottom: 1rem;
    display: flex;
    gap: 0.5rem;
}

.footer-contact .label {
    font-weight: 600;
    opacity: 0.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

/* 页面标题区块 */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    margin-top: 70px;
    color: white;
}

.page-header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.page-header-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 2rem;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.95;
}

/* 团队页面样式 */
.team-intro {
    max-width: 800px;
    margin: 0 auto 3rem;
    text-align: center;
}

.intro-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.team-member {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--bg-light);
    display: flex;
    flex-direction: column;
    height: 100%;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.member-photo {
    width: 100%;
    height: 350px;
    background: var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.member-photo img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    display: block;
}

.member-info {
    padding: 2rem;
}

.member-info h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.member-desc {
    color: var(--text-secondary);
    line-height: 1.7;
}

.team-additional {
    text-align: center;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 10px;
}

.team-additional .note {
    color: var(--text-secondary);
}

/* 案例页面样式 */
.cases-intro {
    margin-bottom: 3rem;
}

.cases-intro h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.process-card {
    background: var(--bg-light);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.process-card-header {
    background: var(--primary-color);
    color: white;
    padding: 1.5rem;
}

.process-card-header h3 {
    font-size: 1.3rem;
}

.process-card-body {
    padding: 2rem;
}

.process-card-body ol {
    padding-left: 1.5rem;
}

.process-card-body li {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.process-card-body strong {
    color: var(--text-primary);
}

.cases-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.case-item {
    background: var(--bg-light);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.case-photo-placeholder {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    border: 2px dashed var(--border-color);
}

.placeholder-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.case-photo-placeholder span {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.case-photo-placeholder small {
    font-size: 0.9rem;
    opacity: 0.7;
}

.case-info {
    padding: 1.5rem;
}

.case-info h4 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.case-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.cases-note {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.cases-note p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.cases-note a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

/* 联系页面样式 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.contact-info h2,
.contact-form-wrapper h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.contact-detail {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 10px;
}

.detail-icon {
    font-size: 2rem;
}

.detail-content h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.detail-content p {
    color: var(--text-secondary);
}

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

.contact-business-hours {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 10px;
    margin-top: 2rem;
}

.contact-business-hours h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.contact-business-hours p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.contact-form {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 10px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-submit {
    width: 100%;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.map-section {
    background: var(--bg-light);
}

.map-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    border: 2px dashed var(--border-color);
    border-radius: 10px;
}

.faq-section {
    background: var(--bg-white);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.faq-item {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.faq-item h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.faq-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 关于我们页面详情样式 */
.about-detail-content {
    display: grid;
    gap: 3rem;
}

.about-text-block {
    max-width: 900px;
    margin: 0 auto;
}

.about-text-block h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.about-text-block p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.about-stats-detailed {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow-md);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.stat-card .stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-card .stat-label {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.stat-card .stat-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.advantages-detail-section {
    background: var(--bg-light);
}

.advantages-detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.advantage-detail-item {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
}

.advantage-detail-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.advantage-icon-large {
    font-size: 2.5rem;
}

.advantage-detail-header h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
}

.advantage-detail-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.services-detail-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.service-category h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.category-desc {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.client-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    list-style: none;
}

.client-tags li {
    padding: 0.75rem 1.5rem;
    background: var(--bg-light);
    border-radius: 50px;
    color: var(--text-primary);
    font-size: 0.95rem;
    border: 1px solid var(--border-color);
}

.positions-detail h3 {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    text-align: center;
}

.position-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.position-tag {
    padding: 1rem;
    background: var(--bg-light);
    border-radius: 5px;
    text-align: center;
    color: var(--text-primary);
    font-size: 0.95rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.position-tag:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.vision-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.vision-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.vision-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.vision-content .divider {
    background: white;
}

.vision-text {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 3rem;
    opacity: 0.95;
}

.vision-values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.value-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

.value-item h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.value-item p {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

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

    .hero-subtitle {
        font-size: 1rem;
    }

    section {
        padding: 3rem 0;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .about-stats,
    .advantages-grid,
    .process-timeline,
    .team-grid,
    .cases-gallery,
    .faq-grid {
        grid-template-columns: 1fr;
    }

    .client-list,
    .position-list {
        grid-template-columns: 1fr;
    }

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

    .page-header h1 {
        font-size: 2rem;
    }

    .cta-section h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.5rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .process-card,
    .advantage-detail-item {
        padding: 1.5rem;
    }
}