/* Material Design 3 样式 */
:root {
    /* Primary Colors */
    --md-primary: #6750A4;
    --md-on-primary: #FFFFFF;
    --md-primary-container: #EADDFF;
    --md-on-primary-container: #21005D;

    /* Secondary Colors */
    --md-secondary: #625B71;
    --md-on-secondary: #FFFFFF;
    --md-secondary-container: #E8DEF8;
    --md-on-secondary-container: #1D192B;

    /* Tertiary Colors */
    --md-tertiary: #7D5260;
    --md-tertiary-rgb: 125, 82, 96;
    --md-on-tertiary: #FFFFFF;
    --md-tertiary-container: #FFD8E4;
    --md-on-tertiary-container: #31111D;

    /* Error Colors */
    --md-error: #BA1A1A;
    --md-error-rgb: 186, 26, 26;
    --md-on-error: #FFFFFF;
    --md-error-container: #FFDAD6;
    --md-on-error-container: #410002;

    /* Surface Colors */
    --md-surface: #FEF7FF;
    --md-on-surface: #1C1B1F;
    --md-surface-variant: #E7E0EC;
    --md-on-surface-variant: #49454F;
    --md-surface-container: #F3EDF7;
    --md-surface-container-high: #ECE6F0;
    --md-surface-container-highest: #E6E0E9;

    /* Outline Colors */
    --md-outline: #79747E;
    --md-outline-variant: #CAC4D0;

    /* Success Colors */
    --md-success: #4CAF50;
    --md-on-success: #FFFFFF;
    --md-success-container: #C8E6C9;

    /* Warning Colors */
    --md-warning: #FF9800;
    --md-on-warning: #FFFFFF;
    --md-warning-container: #FFE0B2;

    /* Shadows */
    --shadow-1: 0 1px 2px 0 rgba(0, 0, 0, 0.3), 0 1px 3px 1px rgba(0, 0, 0, 0.15);
    --shadow-2: 0 1px 2px 0 rgba(0, 0, 0, 0.3), 0 2px 6px 2px rgba(0, 0, 0, 0.15);
    --shadow-3: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 4px 8px 3px rgba(0, 0, 0, 0.15);
    --shadow-4: 0 2px 3px 0 rgba(0, 0, 0, 0.3), 0 6px 10px 4px rgba(0, 0, 0, 0.15);
    --shadow-5: 0 4px 4px 0 rgba(0, 0, 0, 0.3), 0 8px 12px 6px rgba(0, 0, 0, 0.15);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Transitions */
    --transition: all 0.2s cubic-bezier(0.2, 0, 0, 1);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--md-surface);
    color: var(--md-on-surface);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 导航栏 */
.navbar {
    background-color: var(--md-surface-container);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--md-outline-variant);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 600;
    color: var(--md-primary);
    text-decoration: none;
}

.nav-brand .material-icons {
    font-size: 28px;
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 8px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 12px 16px;
    color: var(--md-on-surface);
    text-decoration: none;
    border-radius: 20px;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    background-color: var(--md-primary-container);
    color: var(--md-on-primary-container);
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--md-surface-container-high);
    border: 1px solid var(--md-outline-variant);
    border-radius: 12px;
    min-width: 200px;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: var(--transition);
    box-shadow: var(--shadow-3);
    padding: 8px 0;
    z-index: 1001;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 12px 16px;
    color: var(--md-on-surface);
    text-decoration: none;
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background-color: var(--md-primary-container);
    color: var(--md-on-primary-container);
}

.dropdown-menu a.coming-soon {
    color: var(--md-on-surface-variant);
    opacity: 0.6;
    cursor: default;
}

.dropdown-menu a.coming-soon:hover {
    background-color: transparent;
    color: var(--md-on-surface-variant);
}

.nav-toggle {
    display: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 20px;
    font-family: var(--font-family);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: var(--md-primary);
    color: var(--md-on-primary);
    box-shadow: var(--shadow-1);
}

.btn-primary:hover {
    background-color: var(--md-primary);
    box-shadow: var(--shadow-2);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
    border: 1px solid var(--md-outline);
}

.btn-secondary:hover {
    background-color: var(--md-secondary);
    color: var(--md-on-secondary);
    border-color: var(--md-secondary);
}

.btn-disabled {
    background-color: var(--md-surface-variant);
    color: var(--md-on-surface-variant);
    cursor: not-allowed;
    opacity: 0.6;
}

/* 主横幅区域 */
.hero {
    padding: 80px 0 120px;
    background: linear-gradient(135deg, var(--md-primary-container) 0%, var(--md-surface) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><pattern id="grid" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M 50 0 L 0 0 0 50" fill="none" stroke="%23EADDFF" stroke-width="1" opacity="0.3"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--md-on-surface);
}

.team-name {
    display: block;
    font-size: 52px;
    font-weight: 800;
    color: var(--md-primary);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.highlight {
    color: var(--md-primary);
    position: relative;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--md-on-surface-variant);
    margin-bottom: 32px;
    line-height: 1.5;
}

.free-highlight {
    color: var(--md-tertiary);
    font-weight: 600;
    background: rgba(var(--md-tertiary-rgb), 0.1);
    padding: 2px 8px;
    border-radius: 12px;
    border: 1px solid rgba(var(--md-tertiary-rgb), 0.3);
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

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

.hero-card {
    width: 300px;
    height: 300px;
    background: var(--md-surface);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-4);
    transition: var(--transition);
}

.hero-card:hover {
    transform: translateY(-8px) rotate(2deg);
    box-shadow: var(--shadow-5);
}

.hero-icon {
    font-size: 120px;
    color: var(--md-primary);
}

.hero-image-content {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 24px;
}

/* 章节标题 */
.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    color: var(--md-on-surface);
}

.section-subtitle {
    font-size: 18px;
    text-align: center;
    color: var(--md-on-surface-variant);
    margin-bottom: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 服务区域 */
.services {
    padding: 80px 0;
    background-color: var(--md-surface);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 32px;
}

.service-card {
    background: var(--md-surface-container);
    border-radius: 24px;
    padding: 32px;
    transition: var(--transition);
    border: 1px solid var(--md-outline-variant);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-3);
    border-color: var(--md-primary);
}

.service-icon {
    width: 64px;
    height: 64px;
    background: var(--md-primary-container);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.service-icon .material-icons {
    font-size: 32px;
    color: var(--md-on-primary-container);
}

.service-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--md-on-surface);
}

.service-card p {
    font-size: 16px;
    color: var(--md-on-surface-variant);
    margin-bottom: 20px;
    line-height: 1.6;
}

.service-features {
    list-style: none;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    color: var(--md-on-surface-variant);
}

.service-features li:before {
    content: '✓';
    color: var(--md-success);
    font-weight: bold;
    font-size: 14px;
}

/* 项目区域 */
.projects {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--md-surface) 0%, var(--md-surface-container) 100%);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.projects .container {
    max-width: 1400px;
}

.project-card {
    background: var(--md-surface);
    border-radius: 24px;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--md-outline-variant);
    display: flex;
    flex-direction: column;
}

.project-card.featured {
    border-color: var(--md-primary);
    box-shadow: var(--shadow-2);
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-4);
}

.project-header {
    padding: 24px;
    background: var(--md-surface-container);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 16px;
}

.project-status {
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-status.available {
    background-color: var(--md-success-container);
    color: var(--md-success);
}

.project-status.developing {
    background-color: var(--md-warning-container);
    color: var(--md-warning);
}

.project-header h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--md-on-surface);
    flex: 1;
}

.project-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--md-primary);
}

.project-content {
    padding: 24px;
    flex: 1;
}

.project-content p {
    color: var(--md-on-surface-variant);
    margin-bottom: 20px;
    line-height: 1.6;
}

.project-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.feature-tag {
    background: var(--md-primary-container);
    color: var(--md-on-primary-container);
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
}

.project-includes {
    margin-bottom: 20px;
}

.include-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    color: var(--md-on-surface-variant);
    font-size: 14px;
}

.include-item .material-icons {
    font-size: 18px;
    color: var(--md-success);
}

.project-actions {
    padding: 0 24px 24px;
}

.project-actions .btn {
    width: 100%;
    justify-content: center;
}

/* 服务说明 */
.service-notice {
    padding: 80px 0;
    background-color: var(--md-surface);
}

.notice-card {
    background: var(--md-surface-container);
    border-radius: 24px;
    padding: 32px;
    display: flex;
    gap: 24px;
    align-items: flex-start;
    border-left: 4px solid var(--md-primary);
    box-shadow: var(--shadow-1);
}

.notice-icon {
    width: 48px;
    height: 48px;
    background: var(--md-primary-container);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.notice-icon .material-icons {
    color: var(--md-on-primary-container);
    font-size: 24px;
}

.notice-content h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--md-on-surface);
}

.notice-content p {
    color: var(--md-on-surface-variant);
    margin-bottom: 16px;
    line-height: 1.6;
}

.notice-content ul {
    list-style: none;
    padding-left: 0;
}

.notice-content li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 4px 0;
    color: var(--md-on-surface-variant);
    line-height: 1.6;
}

.notice-content li:before {
    content: '•';
    color: var(--md-primary);
    font-weight: bold;
    margin-top: 2px;
}

/* 页脚 */
.footer {
    background-color: var(--md-surface-container-high);
    border-top: 1px solid var(--md-outline-variant);
    padding: 48px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 32px;
}

.footer-brand .brand-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 600;
    color: var(--md-primary);
    margin-bottom: 16px;
}

.footer-brand .brand-logo .material-icons {
    font-size: 24px;
}

.footer-brand p {
    color: var(--md-on-surface-variant);
    line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--md-on-surface);
}

.footer-links ul {
    list-style: none;
}

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

.footer-links a {
    color: var(--md-on-surface-variant);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--md-primary);
}

.footer-contact p {
    color: var(--md-on-surface-variant);
    margin-bottom: 16px;
    line-height: 1.6;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--md-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.contact-link:hover {
    color: var(--md-on-primary-container);
    background-color: var(--md-primary-container);
    padding: 8px 12px;
    border-radius: 8px;
}

.footer-bottom {
    border-top: 1px solid var(--md-outline-variant);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    color: var(--md-on-surface-variant);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .team-name {
        font-size: 40px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
        text-align: center;
    }
    
    .notice-card {
        flex-direction: column;
        text-align: center;
    }
    
    .container {
        padding: 0 16px;
    }
}

@media (max-width: 1200px) and (min-width: 769px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }
    
    .team-name {
        font-size: 32px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* 项目页面样式 */
.project-header-section {
    background: linear-gradient(135deg, var(--md-primary-container) 0%, var(--md-surface) 100%);
    padding: 40px 0 80px;
    position: relative;
    overflow: hidden;
}

.project-header-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><pattern id="project-grid" width="60" height="60" patternUnits="userSpaceOnUse"><circle cx="30" cy="30" r="1" fill="%236750A4" opacity="0.1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23project-grid)"/></svg>');
    opacity: 0.4;
}

.project-header-section .container {
    position: relative;
    z-index: 1;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 32px;
    font-size: 14px;
    color: var(--md-on-surface-variant);
}

.breadcrumb a {
    color: var(--md-primary);
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumb a:hover {
    color: var(--md-on-primary-container);
    background-color: var(--md-primary-container);
    padding: 4px 8px;
    border-radius: 6px;
}

.breadcrumb .material-icons {
    font-size: 16px;
    opacity: 0.7;
}

.project-hero {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 60px;
    align-items: start;
}

.project-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.project-badges {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.project-status {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-status.available {
    background-color: var(--md-success-container);
    color: var(--md-success);
}

.project-type {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    background-color: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
}

.project-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--md-on-surface);
    line-height: 1.1;
    margin: 0;
}

.project-tagline {
    font-size: 18px;
    color: var(--md-on-surface-variant);
    line-height: 1.6;
    max-width: 600px;
}

.project-highlights {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background-color: var(--md-surface);
    border-radius: 24px;
    font-size: 14px;
    font-weight: 500;
    color: var(--md-on-surface);
    box-shadow: var(--shadow-1);
    transition: var(--transition);
}

.highlight-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-2);
}

.highlight-item .material-icons {
    font-size: 18px;
    color: var(--md-primary);
}

.project-pricing {
    display: flex;
    justify-content: center;
}

.pricing-card {
    background: var(--md-surface);
    border-radius: 24px;
    padding: 32px;
    box-shadow: var(--shadow-4);
    border: 2px solid var(--md-primary);
    width: 100%;
    max-width: 380px;
    position: relative;
    overflow: hidden;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--md-primary), var(--md-tertiary));
}

.pricing-header {
    text-align: center;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--md-outline-variant);
}

.price-tag {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
    margin-bottom: 8px;
}

.currency {
    font-size: 24px;
    font-weight: 600;
    color: var(--md-primary);
}

.amount {
    font-size: 56px;
    font-weight: 700;
    color: var(--md-primary);
    line-height: 1;
}

.price-period {
    font-size: 14px;
    color: var(--md-on-surface-variant);
    font-weight: 500;
}

.pricing-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    color: var(--md-on-surface-variant);
    font-size: 14px;
    line-height: 1.5;
}

.feature .material-icons {
    font-size: 18px;
    color: var(--md-success);
    flex-shrink: 0;
}

.cta-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 16px 24px;
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-tertiary) 100%);
    color: var(--md-on-primary);
    border: none;
    border-radius: 12px;
    font-family: var(--font-family);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-2);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-3);
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-secondary) 100%);
}

.cta-button .material-icons {
    font-size: 20px;
}

/* 项目概述 */
.project-overview {
    padding: 80px 0;
    background-color: var(--md-surface);
}

.overview-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.overview-content h2 {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--md-on-surface);
}

.overview-content p {
    font-size: 18px;
    line-height: 1.7;
    color: var(--md-on-surface-variant);
    margin-bottom: 40px;
}

.feature-highlights {
    display: grid;
    gap: 24px;
}

.highlight-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
    background: var(--md-surface-container);
    border-radius: 16px;
    transition: var(--transition);
}

.highlight-item:hover {
    background: var(--md-primary-container);
    transform: translateX(8px);
}

.highlight-item .material-icons {
    font-size: 32px;
    color: var(--md-primary);
    flex-shrink: 0;
}

.highlight-item h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--md-on-surface);
}

.highlight-item p {
    color: var(--md-on-surface-variant);
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
}

.overview-stats {
    display: grid;
    gap: 24px;
}

.stat-card {
    background: var(--md-surface-container);
    border-radius: 20px;
    padding: 32px 24px;
    text-align: center;
    border: 1px solid var(--md-outline-variant);
    transition: var(--transition);
}

.stat-card:hover {
    background: var(--md-primary-container);
    border-color: var(--md-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-2);
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--md-primary);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--md-on-surface-variant);
    font-weight: 500;
}

/* 游戏模式 */
.game-modes {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--md-surface) 0%, var(--md-surface-container) 100%);
}

.game-modes .container {
    max-width: 1400px;
}

.modes-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.mode-card {
    background: var(--md-surface);
    border-radius: 24px;
    padding: 32px;
    border: 1px solid var(--md-outline-variant);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.mode-card.featured {
    border-color: var(--md-primary);
    box-shadow: var(--shadow-2);
}

.mode-card.featured::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--md-primary), var(--md-tertiary));
}

.mode-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-4);
}

.mode-icon {
    width: 64px;
    height: 64px;
    background: var(--md-primary-container);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.mode-icon .material-icons {
    font-size: 32px;
    color: var(--md-on-primary-container);
}

.mode-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 12px;
}

.mode-card > p {
    color: var(--md-on-surface-variant);
    margin-bottom: 24px;
    line-height: 1.6;
}

.mode-details h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 16px;
}

.purchase-system,
.mode-info {
    list-style: none;
    margin-bottom: 20px;
}

.purchase-system li,
.mode-info li {
    margin-bottom: 12px;
}

.currency-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    background: var(--md-surface-container);
    border-radius: 12px;
    font-size: 14px;
    color: var(--md-on-surface-variant);
}

.currency-icon {
    width: 24px;
    height: 24px;
    image-rendering: pixelated;
    display: inline-block;
    vertical-align: middle;
}

.currency-icon.inline {
    width: 20px;
    height: 20px;
    margin: 0 4px;
    vertical-align: middle;
}

.mode-info li {
    color: var(--md-on-surface-variant);
    line-height: 1.5;
}

.mode-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.feature-badge {
    background: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
}

/* 技术规格 */
.tech-specs {
    padding: 80px 0;
    background-color: var(--md-surface);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.tech-specs .container {
    max-width: 1400px;
}

.spec-card {
    background: var(--md-surface-container);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid var(--md-outline-variant);
    transition: var(--transition);
}

.spec-card:hover {
    border-color: var(--md-primary);
    box-shadow: var(--shadow-2);
}

.spec-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 20px;
}

.spec-card ul {
    list-style: none;
}

.spec-card li {
    padding: 8px 0;
    color: var(--md-on-surface-variant);
    border-bottom: 1px solid var(--md-outline-variant);
    line-height: 1.5;
}

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

.spec-card strong {
    color: var(--md-on-surface);
    font-weight: 600;
}

/* 价格与服务 */
.pricing-service {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--md-surface-container) 0%, var(--md-primary-container) 100%);
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: stretch;
    margin-bottom: 48px;
}

.unified-pricing-card {
    background: var(--md-surface);
    border-radius: 24px;
    padding: 32px;
    border: 1px solid var(--md-outline-variant);
    box-shadow: var(--shadow-3);
}

.pricing-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 2px solid var(--md-outline-variant);
}

.pricing-header h2 {
    font-size: 28px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin: 0;
}

.price-display {
    text-align: right;
}

.price-display .price-amount {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--md-primary);
    line-height: 1;
}

.price-display .price-amount.config-free {
    font-size: 28px;
    color: var(--md-success);
}

.price-display .price-label {
    font-size: 14px;
    color: var(--md-on-surface-variant);
    font-weight: 500;
}

.included-services h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 20px;
}

.service-list {
    list-style: none;
    margin-bottom: 32px;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    color: var(--md-on-surface-variant);
    line-height: 1.5;
}

.service-list .material-icons {
    color: var(--md-success);
    font-size: 20px;
}

/* 服务列表并排布局 */
.services-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.service-column h3 {
    color: var(--md-on-surface);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.service-notice-card {
    background: var(--md-surface);
    border-radius: 24px;
    padding: 32px;
    border: 1px solid var(--md-outline-variant);
    box-shadow: var(--shadow-1);
}

.purchase-action {
    text-align: center;
}

.large-btn {
    padding: 18px 48px;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    width: 100%;
    justify-content: center;
}

.purchase-note {
    color: var(--md-on-surface-variant);
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
}

/* 响应式设计 - 项目页面 */
@media (max-width: 968px) {
    .project-hero {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .project-highlights {
        justify-content: center;
        gap: 16px;
    }
    
    .overview-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 1200px) and (min-width: 769px) {
    .specs-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .project-highlights {
        justify-content: center;
        gap: 16px;
    }
    
    .highlight-item {
        min-width: 120px;
    }
}

@media (max-width: 768px) {
    .project-title {
        font-size: 36px;
    }
    
    .project-highlights {
        flex-direction: column;
        align-items: center;
    }
    
    .modes-grid {
        grid-template-columns: 1fr;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .overview-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }
    
    .stat-card {
        padding: 20px 16px;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .pricing-header {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .price-display {
        text-align: center;
    }
    
    .action-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .action-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 1200px) and (min-width: 769px) {
    .modes-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

/* 下拉菜单活动状态 */
.dropdown-menu a.active {
    background-color: var(--md-primary-container);
    color: var(--md-on-primary-container);
    font-weight: 600;
}

/* Config页面特定样式 */
.price-value.free {
    color: var(--md-success);
    font-size: 28px;
}

/* 目标用户 */
.target-users {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--md-surface-container) 0%, var(--md-surface) 100%);
}

.users-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.user-card {
    background: var(--md-surface);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid var(--md-outline-variant);
    transition: var(--transition);
    text-align: center;
}

.user-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-3);
    border-color: var(--md-primary);
}

.user-icon {
    width: 80px;
    height: 80px;
    background: var(--md-primary-container);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.user-icon .material-icons {
    font-size: 40px;
    color: var(--md-on-primary-container);
}

.user-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 16px;
}

.user-card > p {
    color: var(--md-on-surface-variant);
    margin-bottom: 24px;
    line-height: 1.6;
}

.user-challenges {
    list-style: none;
    text-align: left;
    background: var(--md-surface-container);
    padding: 20px;
    border-radius: 12px;
}

.user-challenges li {
    color: var(--md-on-surface-variant);
    padding: 6px 0;
    line-height: 1.5;
}

/* 解决方案特色 */
.solution-features {
    padding: 80px 0;
    background-color: var(--md-surface);
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.solution-card {
    background: var(--md-surface-container);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid var(--md-outline-variant);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.solution-card.featured {
    border-color: var(--md-primary);
    box-shadow: var(--shadow-2);
}

.solution-card.featured::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--md-primary), var(--md-success));
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-3);
}

.solution-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.solution-header .material-icons {
    font-size: 32px;
    color: var(--md-primary);
}

.solution-header h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--md-on-surface);
}

.solution-content p {
    color: var(--md-on-surface-variant);
    margin-bottom: 24px;
    line-height: 1.6;
}

.solution-benefits {
    display: grid;
    gap: 12px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    background: var(--md-success-container);
    border-radius: 12px;
    color: var(--md-on-success-container);
}

.benefit-item .material-icons {
    color: var(--md-success);
    font-size: 20px;
}

.config-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.config-stat {
    text-align: center;
    padding: 16px;
    background: var(--md-primary-container);
    border-radius: 12px;
}

.stat-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--md-on-primary-container);
    margin-bottom: 4px;
}

.stat-desc {
    font-size: 12px;
    color: var(--md-on-primary-container);
    opacity: 0.8;
}

.support-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.support-item {
    background: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
}

/* 配置详情 */
.config-details {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--md-surface) 0%, var(--md-surface-container) 100%);
}

.config-details .container {
    max-width: 1400px;
}

.plugins-section {
    margin-bottom: 60px; /* 增加与下方的间距 */
}

.detail-card.full-width {
    width: 100%;
}

.plugins-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 改为每行2个 */
    gap: 24px;
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.detail-card {
    background: var(--md-surface);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid var(--md-outline-variant);
    transition: var(--transition);
}

.detail-card:hover {
    border-color: var(--md-primary);
    box-shadow: var(--shadow-2);
}

.detail-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 24px;
}



.plugin-item {
    padding: 16px;
    background: var(--md-surface-container);
    border-radius: 12px;
    border-left: 4px solid var(--md-primary);
}

.plugin-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.plugin-info strong {
    color: var(--md-on-surface);
    font-weight: 600;
}

.plugin-type {
    background: var(--md-success-container);
    color: var(--md-success);
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.plugin-item p {
    color: var(--md-on-surface-variant);
    font-size: 14px;
    line-height: 1.5;
    margin: 0 0 12px 0;
}

.plugin-link {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}

.plugin-link .material-icons {
    font-size: 16px;
    color: var(--md-primary);
}

.plugin-link a {
    color: var(--md-primary);
    text-decoration: none;
    font-size: 13px;
    transition: var(--transition);
}

.plugin-link a:hover {
    color: var(--md-on-primary-container);
    background-color: var(--md-primary-container);
    padding: 4px 8px;
    border-radius: 6px;
}

.features-list {
    display: grid;
    gap: 24px;
}

.feature-category h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 12px;
}

.feature-category .material-icons {
    color: var(--md-primary);
    font-size: 22px;
}

.feature-category ul {
    list-style: none;
    padding-left: 20px;
}

.feature-category li {
    color: var(--md-on-surface-variant);
    padding: 4px 0;
    position: relative;
}

.feature-category li:before {
    content: '•';
    color: var(--md-primary);
    position: absolute;
    left: -12px;
    font-weight: bold;
}

.compatibility-info {
    display: grid;
    gap: 12px;
}

.compat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--md-surface-container);
    border-radius: 8px;
}

.compat-label {
    color: var(--md-on-surface-variant);
    font-weight: 500;
}

.compat-value {
    color: var(--md-on-surface);
    font-weight: 600;
}

/* 前置插件样式 */
.dependencies-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin: 24px 0 16px 0;
    border-top: 1px solid var(--md-outline-variant);
    padding-top: 24px;
}

.dependencies-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.dependency-category h5 {
    font-size: 16px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 12px;
}

.dependency-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.dependency-item {
    padding: 12px;
    background: var(--md-surface-container-low);
    border-radius: 8px;
    border-left: 3px solid transparent;
}

.dependency-item.required {
    border-left-color: var(--md-error);
    background: rgba(var(--md-error-rgb), 0.05);
}

.dependency-item.optional {
    border-left-color: var(--md-tertiary);
    background: rgba(var(--md-tertiary-rgb), 0.05);
}

.dependency-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.dependency-info strong {
    color: var(--md-on-surface);
    font-weight: 600;
}

.dependency-status {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.dependency-status.required {
    background: var(--md-error);
    color: var(--md-on-error);
}

.dependency-status.optional {
    background: var(--md-tertiary);
    color: var(--md-on-tertiary);
}

/* 操作按钮 */
.action-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

/* 响应式设计 - Config页面 */
@media (max-width: 768px) {
    .users-grid,
    .solution-grid,
    .plugins-grid,
    .details-grid {
        grid-template-columns: 1fr;
    }
    
    .config-stats {
        grid-template-columns: 1fr;
    }
    
    .support-features {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .action-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* About页面样式 */
.about-header {
    background: linear-gradient(135deg, var(--md-primary-container) 0%, var(--md-surface-container) 100%);
    padding: 80px 0 60px;
    position: relative;
    overflow: hidden;
}

.about-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><pattern id="about-grid" width="60" height="60" patternUnits="userSpaceOnUse"><path d="M 60 0 L 0 0 0 60" fill="none" stroke="%236750A4" stroke-width="1" opacity="0.1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23about-grid)"/></svg>');
    opacity: 0.3;
}

.about-header-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--md-on-surface);
    margin: 24px 0 16px;
}

.about-subtitle {
    font-size: 20px;
    color: var(--md-on-surface-variant);
    line-height: 1.5;
}

/* 团队介绍 */
.team-intro {
    padding: 80px 0;
    background-color: var(--md-surface);
}

.intro-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.intro-content h2 {
    font-size: 36px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 24px;
}

.intro-content p {
    font-size: 18px;
    color: var(--md-on-surface-variant);
    line-height: 1.7;
    margin-bottom: 24px;
}

.intro-highlights {
    display: grid;
    gap: 24px;
    margin-top: 40px;
}

.highlight-stat {
    display: flex;
    gap: 16px;
    align-items: center;
    padding: 20px;
    background: var(--md-surface-container);
    border-radius: 16px;
    transition: var(--transition);
}

.highlight-stat:hover {
    background: var(--md-primary-container);
    transform: translateX(8px);
}

.stat-icon {
    width: 56px;
    height: 56px;
    background: var(--md-primary-container);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon .material-icons {
    font-size: 28px;
    color: var(--md-on-primary-container);
}

.stat-info h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 8px;
}

.stat-info p {
    color: var(--md-on-surface-variant);
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
}

.intro-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.team-card {
    background: var(--md-surface);
    border-radius: 24px;
    padding: 48px 32px;
    text-align: center;
    box-shadow: var(--shadow-3);
    border: 1px solid var(--md-outline-variant);
    transition: var(--transition);
}

.team-card:hover {
    transform: translateY(-8px) rotate(2deg);
    box-shadow: var(--shadow-4);
}

.team-icon {
    font-size: 80px;
    color: var(--md-primary);
    margin-bottom: 24px;
    display: block;
}

.team-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 12px;
}

.team-card p {
    color: var(--md-on-surface-variant);
    font-size: 16px;
    margin: 0;
}

/* 我们的服务详情 */
.our-services {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--md-surface-container) 0%, var(--md-surface) 100%);
}

.services-detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 32px;
}

.service-detail-card {
    background: var(--md-surface);
    border-radius: 24px;
    padding: 32px;
    border: 1px solid var(--md-outline-variant);
    transition: var(--transition);
}

.service-detail-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-3);
    border-color: var(--md-primary);
}

.service-detail-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.service-detail-icon {
    width: 56px;
    height: 56px;
    background: var(--md-primary-container);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-detail-icon .material-icons {
    font-size: 28px;
    color: var(--md-on-primary-container);
}

.service-detail-header h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--md-on-surface);
}

.service-detail-content p {
    color: var(--md-on-surface-variant);
    line-height: 1.6;
    margin-bottom: 24px;
}

.service-detail-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin: 24px 0 16px;
}

.feature-list {
    list-style: none;
    margin-bottom: 24px;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 0;
    color: var(--md-on-surface-variant);
    line-height: 1.5;
}

.feature-list li:before {
    content: '✓';
    color: var(--md-success);
    font-weight: bold;
    font-size: 14px;
}

.service-examples {
    background: var(--md-surface-container);
    padding: 20px;
    border-radius: 12px;
    margin-top: 24px;
}

.service-examples h4 {
    font-size: 16px;
    margin: 0 0 12px 0;
    color: var(--md-on-surface);
}

.example-tag {
    display: inline-block;
    background: var(--md-primary-container);
    color: var(--md-on-primary-container);
    padding: 8px 12px;
    border-radius: 16px;
    font-size: 13px;
    font-weight: 500;
    margin: 4px 8px 4px 0;
}

.example-tag.developing {
    background: var(--md-warning-container);
    color: var(--md-warning);
}

.example-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.example-pricing {
    display: grid;
    gap: 12px;
}

.pricing-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--md-surface);
    border-radius: 8px;
}

.pricing-name {
    color: var(--md-on-surface-variant);
    font-weight: 500;
}

.pricing-value {
    font-weight: 600;
    color: var(--md-primary);
}

.pricing-value.free {
    color: var(--md-success);
}

/* 使命与愿景 */
.mission-vision {
    padding: 80px 0;
    background-color: var(--md-surface);
}

.mission-vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 32px;
}

.mission-card,
.vision-card {
    background: var(--md-surface-container);
    border-radius: 24px;
    padding: 32px;
    border: 1px solid var(--md-outline-variant);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.mission-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--md-primary), var(--md-tertiary));
}

.vision-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--md-tertiary), var(--md-secondary));
}

.mission-card:hover,
.vision-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-3);
    border-color: var(--md-primary);
}

.mission-icon,
.vision-icon {
    width: 64px;
    height: 64px;
    background: var(--md-primary-container);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.mission-icon .material-icons,
.vision-icon .material-icons {
    font-size: 32px;
    color: var(--md-on-primary-container);
}

.mission-card h3,
.vision-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 16px;
}

.mission-card p,
.vision-card p {
    color: var(--md-on-surface-variant);
    line-height: 1.6;
    margin-bottom: 24px;
}

.mission-points,
.vision-points {
    list-style: none;
}

.mission-points li,
.vision-points li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 8px 0;
    color: var(--md-on-surface-variant);
    line-height: 1.5;
}

.mission-points li:before,
.vision-points li:before {
    content: '→';
    color: var(--md-primary);
    font-weight: bold;
    margin-top: 2px;
}

/* 服务理念 */
.service-philosophy {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--md-surface) 0%, var(--md-surface-container) 100%);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.philosophy-card {
    background: var(--md-surface);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid var(--md-outline-variant);
    transition: var(--transition);
    text-align: center;
}

.philosophy-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-3);
    border-color: var(--md-primary);
}

.philosophy-icon {
    width: 72px;
    height: 72px;
    background: var(--md-primary-container);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.philosophy-icon .material-icons {
    font-size: 36px;
    color: var(--md-on-primary-container);
}

.philosophy-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 16px;
}

.philosophy-card p {
    color: var(--md-on-surface-variant);
    line-height: 1.6;
    margin-bottom: 24px;
}

.philosophy-details {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.detail-tag {
    background: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
}

/* 为什么选择我们 */
.why-choose-us {
    padding: 80px 0;
    background-color: var(--md-surface);
}

.choose-us-grid {
    display: grid;
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
}

.choose-reason {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    padding: 24px;
    background: var(--md-surface-container);
    border-radius: 20px;
    transition: var(--transition);
}

.choose-reason:hover {
    background: var(--md-primary-container);
    transform: translateX(8px);
}

.reason-number {
    width: 48px;
    height: 48px;
    background: var(--md-primary);
    color: var(--md-on-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
}

.reason-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 12px;
}

.reason-content p {
    color: var(--md-on-surface-variant);
    line-height: 1.6;
    margin: 0;
}

/* 关于页CTA */
.about-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--md-primary-container) 0%, var(--md-tertiary-container) 100%);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--md-on-surface);
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 18px;
    color: var(--md-on-surface-variant);
    line-height: 1.6;
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 导航链接活动状态 */
.nav-link.active {
    background-color: var(--md-primary-container);
    color: var(--md-on-primary-container);
}

/* Contact页面样式 */
.contact-header {
    background: linear-gradient(135deg, var(--md-primary-container) 0%, var(--md-surface-container) 100%);
    padding: 80px 0 60px;
    position: relative;
    overflow: hidden;
}

.contact-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><pattern id="contact-grid" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M 50 0 L 0 0 0 50" fill="none" stroke="%236750A4" stroke-width="1" opacity="0.1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23contact-grid)"/></svg>');
    opacity: 0.3;
}

.contact-header-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.contact-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--md-on-surface);
    margin: 24px 0 16px;
}

.contact-subtitle {
    font-size: 20px;
    color: var(--md-on-surface-variant);
    line-height: 1.5;
}

/* 联系主要内容 */
.contact-main {
    padding: 80px 0;
    background-color: var(--md-surface);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

/* 联系信息 */
.contact-info h2 {
    font-size: 32px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 16px;
}

.contact-info > p {
    font-size: 18px;
    color: var(--md-on-surface-variant);
    line-height: 1.6;
    margin-bottom: 40px;
}

.contact-methods {
    display: grid;
    gap: 24px;
    margin-bottom: 40px;
}

.contact-method {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 24px;
    background: var(--md-surface-container);
    border-radius: 16px;
    transition: var(--transition);
}

.contact-method:hover {
    background: var(--md-primary-container);
    transform: translateX(8px);
}

.method-icon {
    width: 56px;
    height: 56px;
    background: var(--md-primary-container);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.method-icon .material-icons {
    font-size: 28px;
    color: var(--md-on-primary-container);
}

.method-info h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 8px;
}

.method-info p {
    color: var(--md-on-surface-variant);
    line-height: 1.5;
    margin-bottom: 12px;
}

.contact-detail {
    color: var(--md-primary);
    font-weight: 500;
    font-size: 14px;
}

.response-time {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 24px;
    background: var(--md-surface-container);
    border-radius: 16px;
    border-left: 4px solid var(--md-primary);
}

.response-icon {
    width: 48px;
    height: 48px;
    background: var(--md-primary-container);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.response-icon .material-icons {
    font-size: 24px;
    color: var(--md-on-primary-container);
}

.response-info h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 8px;
}

.response-info p {
    color: var(--md-on-surface-variant);
    line-height: 1.5;
    margin: 0;
}

/* 联系表单 */
.form-card {
    background: var(--md-surface);
    border-radius: 24px;
    padding: 32px;
    box-shadow: var(--shadow-3);
    border: 1px solid var(--md-outline-variant);
}

.form-card h2 {
    font-size: 28px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 8px;
}

.form-card > p {
    color: var(--md-on-surface-variant);
    line-height: 1.6;
    margin-bottom: 32px;
}

.contact-form {
    display: grid;
    gap: 24px;
}

.form-group {
    display: grid;
    gap: 8px;
}

.form-group label {
    font-size: 16px;
    font-weight: 500;
    color: var(--md-on-surface);
}

.required {
    color: var(--md-error);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 16px;
    border: 2px solid var(--md-outline-variant);
    border-radius: 12px;
    font-family: var(--font-family);
    font-size: 16px;
    background-color: var(--md-surface);
    color: var(--md-on-surface);
    transition: var(--transition);
    resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--md-primary);
    box-shadow: 0 0 0 2px rgba(103, 80, 164, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--md-on-surface-variant);
}

.form-checkbox {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.checkbox-label {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    cursor: pointer;
    font-size: 14px;
    line-height: 1.5;
    color: var(--md-on-surface-variant);
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--md-outline);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
    position: relative;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: var(--md-primary);
    border-color: var(--md-primary);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    color: var(--md-on-primary);
    font-size: 14px;
    font-weight: bold;
}

.submit-btn {
    justify-self: start;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
}

/* FAQ部分 */
.faq-section {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--md-surface) 0%, var(--md-surface-container) 100%);
}

.faq-grid {
    display: grid;
    gap: 16px;
    max-width: 800px;
    margin: 0 auto;
}

.faq-card {
    background: var(--md-surface);
    border-radius: 16px;
    border: 1px solid var(--md-outline-variant);
    overflow: hidden;
    transition: var(--transition);
}

.faq-card:hover {
    border-color: var(--md-primary);
    box-shadow: var(--shadow-1);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    cursor: pointer;
    background: var(--md-surface);
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--md-surface-container);
}

.faq-question h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin: 0;
    flex: 1;
}

.faq-toggle {
    width: 32px;
    height: 32px;
    background: var(--md-primary-container);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: bold;
    color: var(--md-on-primary-container);
    transition: var(--transition);
}

.faq-card.open .faq-toggle {
    transform: rotate(45deg);
    background: var(--md-primary);
    color: var(--md-on-primary);
}

.faq-answer {
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease-in-out;
    background: var(--md-surface-container);
}

.faq-card.open .faq-answer {
    padding: 24px;
    max-height: 500px;
}

.faq-answer p {
    color: var(--md-on-surface-variant);
    line-height: 1.6;
    margin: 0;
}

/* 服务承诺 */
.service-commitment {
    padding: 80px 0;
    background-color: var(--md-surface);
}

.commitment-content h2 {
    font-size: 32px;
    font-weight: 600;
    color: var(--md-on-surface);
    text-align: center;
    margin-bottom: 48px;
}

.commitment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
}

.commitment-item {
    text-align: center;
    padding: 32px 24px;
    background: var(--md-surface-container);
    border-radius: 20px;
    transition: var(--transition);
    border: 1px solid var(--md-outline-variant);
}

.commitment-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2);
    border-color: var(--md-primary);
}

.commitment-icon {
    width: 72px;
    height: 72px;
    background: var(--md-primary-container);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.commitment-icon .material-icons {
    font-size: 36px;
    color: var(--md-on-primary-container);
}

.commitment-item h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--md-on-surface);
    margin-bottom: 16px;
}

.commitment-item p {
    color: var(--md-on-surface-variant);
    line-height: 1.6;
    margin: 0;
}

/* 响应式设计 - Contact页面 */
@media (max-width: 968px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .commitment-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .contact-title {
        font-size: 36px;
    }
    
    .contact-method {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .response-time {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .form-card {
        padding: 24px;
    }
    
    .submit-btn {
        justify-self: stretch;
        width: 100%;
        justify-content: center;
    }
    
    .commitment-grid {
        grid-template-columns: 1fr;
    }
}

/* 响应式设计 - About页面 */
@media (max-width: 968px) {
    .intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .services-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .mission-vision-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .about-title {
        font-size: 36px;
    }
    
    .philosophy-grid {
        grid-template-columns: 1fr;
    }
    
    .choose-reason {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .reason-number {
        margin: 0 auto;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* 滚动动画 */
@media (prefers-reduced-motion: no-preference) {
    .service-card,
    .project-card,
    .notice-card {
        opacity: 0;
        transform: translateY(20px);
        animation: fadeInUp 0.6s ease forwards;
    }
    
    .service-card:nth-child(2) {
        animation-delay: 0.1s;
    }
    
    .project-card:nth-child(2) {
        animation-delay: 0.1s;
    }
    
    .project-card:nth-child(3) {
        animation-delay: 0.2s;
    }
    
    .project-card:nth-child(4) {
        animation-delay: 0.3s;
    }
}

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

/* GitHub仓库卡片样式 */
.github-section,
.github-repository {
    margin-bottom: 3rem;
    padding: 40px 0;
}

.github-card {
    background: var(--md-surface);
    border: 1px solid var(--md-outline-variant);
    border-radius: 24px;
    padding: 32px;
    box-shadow: var(--shadow-3);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.github-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
    border-radius: 24px;
}

.github-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-4);
}

.github-card:hover::after {
    opacity: 1;
}

.github-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #6366f1, #8b5cf6, #06b6d4);
    z-index: 1;
}

.github-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.github-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.github-info .material-icons {
    color: var(--md-primary);
    font-size: 2rem;
}

.github-info h3 {
    margin: 0;
    color: var(--md-on-surface);
    font-size: 1.5rem;
    font-weight: 600;
}

.github-badge {
    background: linear-gradient(135deg, #6366f1 0%, #7c3aed 50%, #0ea5e9 100%);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.github-description {
    color: var(--md-on-surface-variant);
    line-height: 1.7;
    margin-bottom: 2rem;
    font-size: 1rem;
}

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

.github-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--md-surface-container-low);
    border-radius: 16px;
    border: 1px solid var(--md-outline-variant);
}

.github-feature .material-icons {
    color: var(--md-primary);
    font-size: 1.25rem;
}

.github-feature span:last-child {
    color: var(--md-on-surface);
    font-weight: 500;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--md-primary);
    color: var(--md-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 16px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: var(--md-primary);
    color: var(--md-on-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-2);
}

@media (max-width: 768px) {
    .github-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .github-features {
        grid-template-columns: 1fr;
    }
    
    .github-feature {
        justify-content: center;
    }
}

/* 配置获取方式样式 */
.purchase-action h3 {
    color: #1e293b;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    text-align: center;
}

.download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.download-option {
    background: #ffffff;
    border: 2px solid #e2e8f0;
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.download-option:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
    border-color: #6366f1;
}

.option-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    position: relative;
}

.option-header .material-icons {
    font-size: 2.5rem;
    color: var(--md-primary);
    background: var(--md-primary-container);
    padding: 0.75rem;
    border-radius: 50%;
}

.option-header h4 {
    margin: 0;
    color: var(--md-on-surface);
    font-size: 1.25rem;
    font-weight: 600;
}

.option-badge {
    position: absolute;
    top: -0.5rem;
    right: -1rem;
    background: var(--md-primary);
    color: var(--md-on-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.option-badge.secondary {
    background: var(--md-tertiary);
    color: var(--md-on-tertiary);
}

.option-description {
    color: var(--md-on-surface-variant);
    line-height: 1.5;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.download-option .btn {
    width: 100%;
    max-width: 200px;
    padding: 0.875rem 1.5rem;
    font-weight: 600;
}

.support-section {
    background: var(--md-surface-container-low);
    border: 1px solid var(--md-outline-variant);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
}

.support-section h4 {
    color: var(--md-on-surface);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.support-section p {
    color: var(--md-on-surface-variant);
    margin-bottom: 1rem;
    line-height: 1.5;
    font-size: 0.9rem;
}

.support-section .btn {
    max-width: 250px;
}

/* 下载区域样式 */
.download-section {
    width: 100%;
}

.download-card {
    background: var(--md-surface);
    border-radius: 24px;
    padding: 32px;
    border: 1px solid var(--md-outline-variant);
    box-shadow: var(--shadow-3);
}

.download-card h3 {
    color: var(--md-on-surface);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    text-align: center;
}

.download-card .download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 2.5rem;
}

.download-card .download-option {
    background: var(--md-surface-container-low);
    border: 1px solid var(--md-outline-variant);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.download-card .download-option:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-2);
    border-color: var(--md-primary);
    background: var(--md-surface-container);
}

@media (max-width: 768px) {
    .download-options {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .download-option {
        padding: 1.5rem;
    }
    
    .option-header .material-icons {
        font-size: 2.5rem;
        padding: 0.75rem;
    }
    
    .support-section {
        padding: 1.5rem;
    }
    
    .download-card {
        padding: 24px;
    }
    
    .download-card .download-options {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}