/* 扁平化设计 - 简洁快速 */
:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --transition: all 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-tap-highlight-color: transparent;
}

@media (max-width: 768px) {
    body {
        font-size: 16px;
        -webkit-text-size-adjust: 100%;
    }
}

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

/* Header & Navigation */
.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.nav {
    padding: 1rem 0;
}

@media (max-width: 768px) {
    .nav {
        padding: 0.75rem 0;
    }
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    height: 40px;
}

.logo-img {
    height: 40px;
    width: auto;
    max-width: 150px;
    object-fit: contain;
    display: block;
}

.logo:hover {
    opacity: 0.8;
}

.logo:hover .logo-img {
    opacity: 0.8;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 101;
}

.nav-toggle span {
    width: 26px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition);
    border-radius: 2px;
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    text-align: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    opacity: 0.95;
    font-weight: 500;
}

.hero-desc {
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

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

/* Sections */
.section {
    padding: 5rem 0;
}

.section-alt {
    background: var(--bg-secondary);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.125rem;
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

@media (max-width: 768px) {
    .content-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

.content-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.content-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
    border-color: var(--primary-color);
}

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

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

/* Space Features */
.space-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border-color);
}

@media (max-width: 768px) {
    .space-features {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

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

.feature-item strong {
    display: block;
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Career Section */
.career-content {
    max-width: 1000px;
    margin: 0 auto;
}

.career-intro {
    text-align: center;
    margin-bottom: 3rem;
}

.career-intro p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.jobs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.job-item {
    padding: 2rem;
    background: var(--bg-primary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.job-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
    border-color: var(--primary-color);
}

.job-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.job-info {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.job-info span {
    padding: 0.25rem 0.75rem;
    background: var(--bg-secondary);
    border-radius: 4px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.job-item p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.job-link {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.job-link:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.career-benefits {
    text-align: center;
    padding-top: 3rem;
    border-top: 1px solid var(--border-color);
}

.career-benefits h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.benefits-list {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.benefits-list span {
    padding: 0.5rem 1.5rem;
    background: var(--bg-secondary);
    border-radius: 6px;
    font-size: 0.875rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* About Section */
.about-content {
    max-width: 1000px;
    margin: 0 auto;
}

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

.about-text .lead {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 500;
}

.about-text p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    line-height: 1;
}

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

.about-values {
    margin-top: 3rem;
}

.about-values h3 {
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
}

.value-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 8px;
}

.value-item h4 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.value-item p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

.service-item {
    padding: 2rem;
    background: var(--bg-primary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.service-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
    border-color: var(--primary-color);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-align: center;
    line-height: 1;
}

@media (max-width: 768px) {
    .service-icon {
        font-size: 2.5rem;
    }
}

.service-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    text-align: center;
}

.service-item p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    text-align: center;
    line-height: 1.7;
}

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

.service-features li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    padding-left: 1.5rem;
    position: relative;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Portfolio Section */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    padding: 2rem;
    background: var(--bg-primary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.portfolio-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
    border-color: var(--primary-color);
}

.portfolio-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-align: center;
}

.portfolio-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    text-align: center;
}

.portfolio-item p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
    text-align: center;
}

.portfolio-tags {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.portfolio-tags span {
    padding: 0.25rem 0.75rem;
    background: var(--bg-secondary);
    border-radius: 4px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* News Section */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.news-item {
    padding: 2rem;
    background: var(--bg-primary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.news-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
    border-color: var(--primary-color);
}

.news-date {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.news-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.news-item p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.news-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.news-link:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Contact Section */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info-section {
    padding: 2rem 0;
}

.contact-intro {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-method {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.contact-method h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.contact-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.contact-link:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.contact-text {
    color: var(--text-secondary);
}

/* Contact Form */
.contact-form-section {
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: 8px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg-primary);
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: 0.875rem;
        font-size: 16px; /* 防止iOS自动缩放 */
    }
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-group select {
    cursor: pointer;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1rem;
}

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

.footer-section h4 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    opacity: 0.8;
    line-height: 1.7;
    font-size: 0.875rem;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
    text-decoration: underline;
}

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

.footer-bottom p {
    opacity: 0.8;
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: var(--bg-primary);
        width: 100%;
        padding: 1.5rem;
        border-top: 1px solid var(--border-color);
        transition: left 0.3s ease;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        max-height: calc(100vh - 70px);
        overflow-y: auto;
    }

    .nav-menu li {
        margin-bottom: 0.5rem;
    }

    .nav-menu a {
        display: block;
        padding: 1rem;
        font-size: 1.125rem;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu a::after {
        display: none;
    }

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

    .nav-toggle {
        display: flex;
    }

    .logo {
        font-size: 1.25rem;
        height: 35px;
    }

    .logo-img {
        height: 35px;
        max-width: 120px;
    }

    .hero {
        padding: 3rem 0;
    }

    .hero-title {
        font-size: 2rem;
        margin-bottom: 1rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
        margin-bottom: 0.75rem;
    }

    .hero-desc {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .section-title {
        font-size: 1.75rem;
        margin-bottom: 1rem;
    }

    .section-subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .section {
        padding: 2.5rem 0;
    }

    .container {
        padding: 0 1rem;
    }

    .page-intro {
        margin-bottom: 2rem;
    }

    .page-intro p {
        font-size: 1rem;
        line-height: 1.8;
    }

    /* 服务网格 - 移动端2列 */
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    /* 内容网格 - 移动端2列 */
    .content-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    /* 优势展示 - 移动端2列 */
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    /* 价值展示 - 移动端2列 */
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    /* 流程步骤 - 移动端2列 */
    .process-steps {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        -webkit-grid-template-columns: repeat(2, 1fr) !important;
        grid-auto-flow: row !important;
        gap: 1rem !important;
        width: 100%;
        box-sizing: border-box;
    }

    /* 空间特色 - 移动端2列 */
    .space-features {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        -webkit-grid-template-columns: repeat(2, 1fr) !important;
        grid-auto-flow: row !important;
        gap: 1rem !important;
        width: 100%;
        box-sizing: border-box;
    }

    /* 统计数据 - 移动端2列 */
    .about-stats {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        -webkit-grid-template-columns: repeat(2, 1fr) !important;
        grid-auto-flow: row !important;
        gap: 1rem !important;
        width: 100%;
        box-sizing: border-box;
    }

    /* 价格方案 - 移动端2列 */
    .pricing-grid {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        -webkit-grid-template-columns: repeat(2, 1fr) !important;
        grid-auto-flow: row !important;
        gap: 1rem !important;
        width: 100%;
        box-sizing: border-box;
    }

    /* 招聘信息 - 移动端2列 */
    .jobs-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    /* 单列布局的内容（内容较多，需要完整显示） */
    .portfolio-grid,
    .news-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .service-item,
    .content-card {
        padding: 1rem;
    }

    .service-item h3,
    .content-card h3 {
        font-size: 0.9375rem;
        margin-bottom: 0.5rem;
    }

    .service-item p,
    .content-card p {
        font-size: 0.8125rem;
        line-height: 1.5;
        margin-bottom: 0.5rem;
    }

    .service-features {
        margin-top: 0.75rem;
    }

    .service-features {
        margin-top: 0.5rem;
    }

    .service-features li {
        font-size: 0.75rem;
        padding: 0.25rem 0;
        padding-left: 1rem;
        line-height: 1.4;
    }

    .service-price {
        font-size: 0.875rem;
        margin-top: 0.5rem;
        padding-top: 0.5rem;
        font-weight: 600;
    }

    .service-icon {
        font-size: 1.75rem;
        margin-bottom: 0.5rem;
    }

    .page-title {
        font-size: 1.75rem;
    }

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

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .btn {
        padding: 1rem 2rem;
        font-size: 1rem;
        width: 100%;
        text-align: center;
    }

    .benefits-list {
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .benefits-list span {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-form-section {
        padding: 1.5rem;
    }

    .form-group input,
    .form-group textarea,
    .form-group select {
        font-size: 16px; /* 防止iOS自动缩放 */
    }

    .section-subtitle {
        line-height: 1.6;
    }

    .page-intro p {
        text-align: left;
    }

    .service-item,
    .content-card,
    .advantage-item,
    .pricing-item {
        margin-bottom: 0;
    }

    .contact-methods {
        gap: 1.5rem;
    }

    .contact-method {
        gap: 0.75rem;
    }

    .contact-icon {
        font-size: 1.5rem;
    }

    .footer {
        padding: 2.5rem 0 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr !important;
        gap: 2rem;
        text-align: left;
        margin-bottom: 2rem;
    }

    .footer-section {
        margin-bottom: 0;
        padding-bottom: 1.5rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .footer-section:last-of-type {
        border-bottom: none;
        padding-bottom: 0;
    }

    .footer-section h4 {
        font-size: 1rem;
        margin-bottom: 1rem;
        font-weight: 600;
    }

    .footer-section p {
        font-size: 0.875rem;
        line-height: 1.7;
        margin-bottom: 0.5rem;
    }

    .footer-links {
        text-align: left;
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
    }

    .footer-links li {
        margin-bottom: 0;
    }

    .footer-links a {
        font-size: 0.875rem;
        display: flex;
        align-items: center;
        padding: 0.5rem 0;
        min-height: 44px;
    }

    .footer-bottom {
        padding-top: 1.5rem;
        margin-top: 1rem;
    }

    .process-section,
    .advantages-section,
    .pricing-section {
        margin-top: 2.5rem;
        padding-top: 2rem;
    }

    .subsection-title {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .process-step {
        padding: 1rem 0.75rem;
        width: 100%;
        box-sizing: border-box;
        display: block;
        float: none;
    }

    .step-number {
        width: 45px;
        height: 45px;
        font-size: 1.125rem;
        margin-bottom: 0.75rem;
        box-sizing: border-box;
    }

    .process-step h4 {
        font-size: 1rem;
        margin-bottom: 0.5rem;
    }

    .process-step p {
        font-size: 0.8125rem;
        line-height: 1.5;
    }

    .advantage-item {
        padding: 1.5rem 1rem;
    }

    .advantage-icon {
        font-size: 2.5rem;
        width: 70px;
        height: 70px;
        margin-bottom: 0.75rem;
    }

    .advantage-item h4 {
        font-size: 1rem;
        margin-bottom: 0.5rem;
    }

    .advantage-item p {
        font-size: 0.8125rem;
        line-height: 1.6;
    }

    .value-item {
        padding: 1.25rem;
    }

    .value-item h4 {
        font-size: 1rem;
        margin-bottom: 0.5rem;
    }

    .value-item p {
        font-size: 0.8125rem;
        line-height: 1.5;
    }

    .pricing-item {
        padding: 1.5rem 1rem;
        width: 100%;
        box-sizing: border-box;
        display: block;
        float: none;
    }

    .pricing-item h4 {
        font-size: 1rem;
        margin-bottom: 0.75rem;
    }

    .pricing-price {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }

    .pricing-features {
        margin-bottom: 1.5rem;
    }

    .pricing-features li {
        font-size: 0.8125rem;
        padding: 0.5rem 0;
    }

    .job-item {
        padding: 1rem;
    }

    .job-item h3 {
        font-size: 1rem;
        margin-bottom: 0.75rem;
    }

    .job-item p {
        font-size: 0.8125rem;
        line-height: 1.5;
    }

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

    .stat-label {
        font-size: 0.875rem;
    }

    .feature-item strong {
        font-size: 1rem;
        margin-bottom: 0.375rem;
    }

    .feature-item p {
        font-size: 0.8125rem;
        line-height: 1.5;
    }

    .job-item {
        padding: 1.5rem;
    }

    .job-item h3 {
        font-size: 1.125rem;
    }

    .job-info {
        gap: 0.5rem;
    }

    .job-info span {
        font-size: 0.8125rem;
        padding: 0.25rem 0.625rem;
    }

    .space-features {
        gap: 1.5rem;
    }

    .feature-item strong {
        font-size: 1.125rem;
    }

    .feature-item p {
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 15px;
    }

    .container {
        padding: 0 0.875rem;
    }

    .hero {
        padding: 2.5rem 0;
    }

    .hero-title {
        font-size: 1.75rem;
    }

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

    .hero-desc {
        font-size: 0.9375rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .section {
        padding: 2rem 0;
    }

    /* 小屏幕强制保持2列，但间距更小 */
    .services-grid,
    .content-grid,
    .advantages-grid,
    .values-grid,
    .process-steps,
    .space-features,
    .about-stats,
    .pricing-grid,
    .jobs-grid {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        -webkit-grid-template-columns: repeat(2, 1fr) !important;
        grid-auto-flow: row !important;
        gap: 0.75rem !important;
        width: 100%;
        box-sizing: border-box;
    }

    .service-item,
    .content-card {
        padding: 0.875rem;
    }

    .service-item h3,
    .content-card h3 {
        font-size: 0.875rem;
    }

    .service-item p,
    .content-card p {
        font-size: 0.75rem;
    }

    .service-features li {
        font-size: 0.6875rem;
        padding: 0.2rem 0;
        padding-left: 0.875rem;
    }

    .service-icon {
        font-size: 1.5rem;
    }

    .service-price {
        font-size: 0.8125rem;
    }

    .pricing-item {
        padding: 1.25rem 0.75rem;
        width: 100%;
        box-sizing: border-box;
        display: block;
        float: none;
    }

    .pricing-item h4 {
        font-size: 0.9375rem;
    }

    .pricing-price {
        font-size: 1.25rem;
    }

    .pricing-features li {
        font-size: 0.75rem;
        padding: 0.4rem 0;
    }

    .job-item {
        padding: 0.875rem;
    }

    .job-item h3 {
        font-size: 0.9375rem;
    }

    .job-item p {
        font-size: 0.75rem;
    }

    .advantage-item {
        padding: 1.25rem 0.75rem;
    }

    .advantage-icon {
        font-size: 2rem;
        width: 60px;
        height: 60px;
        margin-bottom: 0.5rem;
    }

    .value-item,
    .process-step {
        padding: 1rem 0.5rem;
        width: 100%;
        box-sizing: border-box;
        display: block;
        float: none;
    }

    .advantage-item h4,
    .value-item h4,
    .process-step h4 {
        font-size: 0.9375rem;
    }

    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9375rem;
    }

    .nav-menu a {
        font-size: 1rem;
        padding: 0.875rem;
    }

    .subsection-title {
        font-size: 1.25rem;
    }

    .pricing-price {
        font-size: 1.75rem;
    }

    .stat-number {
        font-size: 1.75rem;
    }

    .footer {
        padding: 2rem 0 1.25rem;
    }

    .footer-content {
        grid-template-columns: 1fr !important;
        gap: 1.75rem;
        margin-bottom: 1.75rem;
    }

    .footer-section {
        padding-bottom: 1.25rem;
    }

    .footer-section h4 {
        font-size: 0.9375rem;
        margin-bottom: 0.875rem;
    }

    .footer-section p {
        font-size: 0.8125rem;
        line-height: 1.6;
    }

    .footer-links {
        gap: 0.625rem;
    }

    .footer-links a {
        font-size: 0.8125rem;
        min-height: 40px;
        padding: 0.375rem 0;
    }

    .footer-bottom {
        padding-top: 1.25rem;
    }
}

/* Performance Optimizations */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Page Hero (Sub Pages) */
.page-hero {
    padding: 4rem 0;
    text-align: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.page-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
}

.page-intro {
    max-width: 800px;
    margin: 0 auto 3rem;
    text-align: center;
}

.page-intro p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Service Price */
.service-price {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* Process Steps */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
    width: 100%;
    box-sizing: border-box;
}

.process-step {
    text-align: center;
    padding: 2rem 1rem;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.process-step h3,
.process-step h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.process-section,
.advantages-section,
.pricing-section {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border-color);
}

.subsection-title {
    font-size: 1.75rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.process-step p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Advantages Grid - 固定2列布局 */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (max-width: 768px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

.advantage-item {
    padding: 2rem;
    background: var(--bg-primary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.advantage-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.advantage-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    line-height: 1;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(37, 99, 235, 0.05));
    border-radius: 50%;
}

.advantage-item h4 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    font-weight: 600;
}

.advantage-item p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
    font-size: 0.9375rem;
}

/* Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
    width: 100%;
    box-sizing: border-box;
}

.pricing-item {
    padding: 2.5rem 2rem;
    background: var(--bg-primary);
    border-radius: 8px;
    border: 2px solid var(--border-color);
    text-align: center;
    position: relative;
    transition: var(--transition);
}

.pricing-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
    border-color: var(--primary-color);
}

.pricing-item.featured {
    border-color: var(--primary-color);
    background: linear-gradient(to bottom, rgba(37, 99, 235, 0.05), var(--bg-primary));
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.pricing-item h3,
.pricing-item h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.advantage-item h4 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.pricing-price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem;
    text-align: left;
}

.pricing-features li {
    padding: 0.75rem 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    padding-left: 1.5rem;
}

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

.pricing-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Navigation Active State */
.nav-menu a.active {
    color: var(--primary-color);
}

.nav-menu a.active::after {
    width: 100%;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 微信浏览器兼容性 - 确保服务流程和价格方案布局一致 */
@media (max-width: 768px) {
    /* 强制重置可能影响布局的属性 */
    .process-steps > *,
    .pricing-grid > * {
        float: none !important;
        clear: both !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }
    
    /* 确保grid布局在所有浏览器中生效 */
    .process-steps,
    .pricing-grid {
        display: -webkit-grid !important;
        display: grid !important;
        -webkit-grid-template-columns: repeat(2, 1fr) !important;
        grid-template-columns: repeat(2, 1fr) !important;
        -ms-grid-columns: 1fr 1fr !important;
    }
}

@media (max-width: 480px) {
    /* 小屏幕同样处理 */
    .process-steps > *,
    .pricing-grid > * {
        float: none !important;
        clear: both !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }
    
    .process-steps,
    .pricing-grid {
        display: -webkit-grid !important;
        display: grid !important;
        -webkit-grid-template-columns: repeat(2, 1fr) !important;
        grid-template-columns: repeat(2, 1fr) !important;
        -ms-grid-columns: 1fr 1fr !important;
    }
}