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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

/* SVG图标通用样式 */
svg {
    fill: currentColor;
}

.feature-icon svg,
.case-logo svg,
.social-links svg {
    fill: currentColor;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(25, 118, 210, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1565C0 0%, #0D47A1 100%);
    box-shadow: 0 6px 20px rgba(25, 118, 210, 0.4);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(25, 118, 210, 0.1);
    color: #1976D2;
    border: 2px solid rgba(25, 118, 210, 0.2);
}

.btn-secondary:hover {
    background: rgba(25, 118, 210, 0.15);
    border-color: #1976D2;
}

.btn-outline {
    background: transparent;
    color: #1976D2;
    border: 2px solid #1976D2;
}

.btn-outline:hover {
    background: #1976D2;
    color: white;
}

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

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

.gradient-text {
    background: linear-gradient(135deg, #1976D2 0%, #4CAF50 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.section-description {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(25, 118, 210, 0.1);
    z-index: 1000;
    padding: 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    color: #1976D2;
}

.logo {
    width: 32px;
    height: 32px;
}

.brand-text {
    font-size: 1.2rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #1976D2;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: #1976D2;
    transition: width 0.3s ease;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 英雄区域 */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fafe 0%, #e3f2fd 100%);
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(25, 118, 210, 0.1);
    color: #1976D2;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    color: #1a1a1a;
}

.hero-description {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #1976D2;
}

.stat-label {
    font-size: 0.9rem;
    color: #666;
}

/* 设备展示 */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.device-showcase {
    position: relative;
    animation: float 3s ease-in-out infinite;
}

.device-screen {
    width: 280px;
    height: 500px;
    background: #1a1a1a;
    border-radius: 24px;
    padding: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.screen-content {
    width: 100%;
    height: 100%;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
}

.app-interface {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.interface-header {
    background: #1976D2;
    color: white;
    padding: 12px;
}

.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    font-weight: 500;
}

.indicators {
    display: flex;
    gap: 8px;
}

.interface-body {
    flex: 1;
    padding: 20px;
    background: #f8f9fa;
}

.device-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.device-item {
    background: white;
    padding: 16px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease;
}

.device-item:hover {
    transform: translateY(-2px);
}

.device-item.active {
    background: #e3f2fd;
    border: 2px solid #1976D2;
}

.device-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.floating-devices {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.mini-device {
    position: absolute;
    width: 60px;
    height: 100px;
    background: #1a1a1a;
    border-radius: 12px;
    padding: 4px;
}

.mini-screen {
    width: 100%;
    height: 100%;
    background: #4CAF50;
    border-radius: 8px;
}

.device-1 {
    top: 10%;
    left: -20%;
    animation: float 3s ease-in-out infinite 0.5s;
}

.device-2 {
    top: 60%;
    right: -20%;
    animation: float 3s ease-in-out infinite 1s;
}

.device-3 {
    bottom: 10%;
    left: -30%;
    animation: float 3s ease-in-out infinite 1.5s;
}

/* 功能特性 */
.features {
    padding: 100px 0;
    background: #fff;
}

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

.feature-card {
    background: #fff;
    padding: 32px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.feature-card.featured {
    border: 2px solid #1976D2;
    background: linear-gradient(135deg, #fff 0%, #f8fafe 100%);
}

.feature-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: #1976D2;
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #1976D2 0%, #4CAF50 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    margin-bottom: 24px;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.feature-description {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 8px 0;
    color: #333;
    display: flex;
    align-items: center;
    gap: 12px;
}

.feature-list li::before {
    content: '✓';
    color: #4CAF50;
    font-weight: bold;
    font-size: 14px;
}

/* 产品对比 */
.comparison {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8fafe 0%, #e3f2fd 100%);
}

.comparison-table {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.table-header,
.table-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 1px;
    background: #f0f0f0;
}

.table-header {
    background: #1976D2;
}

.table-header .feature-col,
.table-header .product-col {
    background: #1976D2;
    color: white;
    padding: 20px;
    font-weight: 600;
    text-align: center;
}

.table-header .our-product {
    background: #4CAF50;
}

.product-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.product-info img {
    width: 24px;
    height: 24px;
}

.table-row .feature-col,
.table-row .product-col {
    background: white;
    padding: 16px 20px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.table-row .feature-col {
    text-align: left;
    font-weight: 500;
}

.table-row .our-product {
    background: #f8fff8;
}

.table-row i.fa-check {
    color: #4CAF50;
    font-size: 18px;
}

.table-row i.fa-times {
    color: #f44336;
    font-size: 18px;
}

.table-row i.fa-minus {
    color: #ff9800;
    font-size: 18px;
}

/* 定价 */
.pricing {
    padding: 100px 0;
    background: #fff;
}

.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}

.toggle-label {
    font-weight: 500;
    color: #666;
}

.toggle-switch {
    width: 60px;
    height: 30px;
    background: #e0e0e0;
    border-radius: 15px;
    position: relative;
    cursor: pointer;
    transition: background 0.3s ease;
}

.toggle-switch.active {
    background: #1976D2;
}

.toggle-slider {
    width: 26px;
    height: 26px;
    background: white;
    border-radius: 50%;
    position: absolute;
    top: 2px;
    left: 2px;
    transition: transform 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch.active .toggle-slider {
    transform: translateX(30px);
}

.discount-badge {
    background: #4CAF50;
    color: white;
    padding: 6px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 1200px;
    margin: 0 auto;
}

/* 确保3个卡片在大屏幕上平均分布 */
@media (max-width: 1200px) {
    .pricing-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    }
}

.pricing-card {
    background: white;
    padding: 40px 32px;
    border-radius: 16px;
    border: 2px solid #f0f0f0;
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.pricing-card.featured {
    border-color: #1976D2;
    box-shadow: 0 8px 30px rgba(25, 118, 210, 0.15);
}

.pricing-card.premium {
    border: 2px solid #FF6B35;
    background: linear-gradient(135deg, #fff 0%, #fff9f7 100%);
    box-shadow: 0 8px 30px rgba(255, 107, 53, 0.15);
    position: relative;
}

.pricing-card.premium:hover {
    box-shadow: 0 12px 40px rgba(255, 107, 53, 0.2);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: #1976D2;
    color: white;
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.premium-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: #FF6B35;
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

.premium-badge svg {
    fill: currentColor;
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.plan-price {
    margin-bottom: 16px;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1976D2;
}

.price.custom {
    font-size: 2.2rem;
    background: linear-gradient(135deg, #FF6B35 0%, #F7931E 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price.free {
    font-size: 2.5rem;
    background: linear-gradient(135deg, #4CAF50 0%, #2E7D32 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.period {
    font-size: 1rem;
    color: #666;
    font-weight: 400;
}

.yearly {
    display: none;
}

.plan-description {
    color: #666;
}

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

.plan-features li {
    padding: 12px 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.plan-features i.fa-check {
    color: #4CAF50;
}

.plan-features i.fa-times {
    color: #ccc;
}

.check-icon {
    fill: #4CAF50;
    flex-shrink: 0;
}

.btn-premium {
    background: linear-gradient(135deg, #FF6B35 0%, #F7931E 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.btn-premium:hover {
    background: linear-gradient(135deg, #F7931E 0%, #FF6B35 100%);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
    transform: translateY(-2px);
}

/* 客户案例 */
.cases {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8fafe 0%, #e3f2fd 100%);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
    margin-bottom: 80px;
}

.case-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

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

.case-logo {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #1976D2 0%, #4CAF50 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
}

.case-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 4px;
}

.case-industry {
    color: #666;
    font-size: 0.9rem;
}

.case-content p {
    color: #333;
    line-height: 1.6;
    margin-bottom: 24px;
}

.case-results {
    display: flex;
    gap: 32px;
}

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

.result-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: #1976D2;
}

.result-label {
    color: #666;
    font-size: 0.9rem;
}

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

.testimonial-item {
    background: white;
    padding: 32px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.testimonial-content {
    margin-bottom: 24px;
}

.testimonial-content p {
    font-style: italic;
    color: #333;
    line-height: 1.6;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #1976D2 0%, #4CAF50 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
}

.author-name {
    display: block;
    font-weight: 600;
    color: #1a1a1a;
}

.author-title {
    color: #666;
    font-size: 0.9rem;
}

/* 下载区域 */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
    color: white;
}

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

.download-info h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.download-info p {
    font-size: 1.2rem;
    margin-bottom: 32px;
    opacity: 0.9;
}

.download-features {
    display: flex;
    gap: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

.download-actions {
    text-align: center;
}

.download-btn {
    background: white;
    color: #1976D2;
    font-size: 1.1rem;
    padding: 20px 40px;
    margin-bottom: 16px;
    position: relative;
}

.download-btn:hover {
    background: #f8f9fa;
    transform: translateY(-2px);
}

.download-btn .version {
    position: absolute;
    top: -8px;
    right: -8px;
    background: #4CAF50;
    color: white;
    font-size: 12px;
    padding: 4px 8px;
    border-radius: 8px;
}

.download-info-text {
    margin-bottom: 24px;
    opacity: 0.8;
}

.download-info-text p {
    margin: 4px 0;
    font-size: 0.9rem;
}

.alternative-downloads {
    display: flex;
    justify-content: center;
    gap: 32px;
}

.alt-download {
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.alt-download:hover {
    opacity: 1;
}

/* 页脚 */
.footer {
    background: #1a1a1a;
    color: #ccc;
    padding: 60px 0 0;
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo {
    width: 32px;
    height: 32px;
}

.footer-brand-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
}

.footer-description {
    line-height: 1.6;
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.wechat-group {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.wechat-group:hover {
    transform: translateY(-2px);
}

.social-icon {
    width: 40px;
    height: 40px;
    padding: 10px;
    background: #333;
    border-radius: 8px;
    fill: #ccc;
    transition: all 0.3s ease;
}

.wechat-group:hover .social-icon {
    background: #1976D2;
    fill: white;
}

.group-label {
    font-size: 12px;
    color: #ccc;
    text-align: center;
    transition: color 0.3s ease;
}

.wechat-group:hover .group-label {
    color: #1976D2;
}

.wechat-qr-popup {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: white;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    min-width: 180px;
    text-align: center;
}

.wechat-qr-popup::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: white;
}

.wechat-group:hover .wechat-qr-popup {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-20px);
}

.qr-header {
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
    font-size: 14px;
}

.qr-code {
    margin-bottom: 12px;
    display: flex;
    justify-content: center;
}

.wechat-qr-popup p {
    font-size: 12px;
    color: #666;
    line-height: 1.4;
    margin: 0;
}

/* 不同群的主题色 */
.wechat-group[data-group="customer"]:hover .social-icon {
    background: #4CAF50;
}

.wechat-group[data-group="customer"]:hover .group-label {
    color: #4CAF50;
}

.wechat-group[data-group="tech"]:hover .social-icon {
    background: #2196F3;
}

.wechat-group[data-group="tech"]:hover .group-label {
    color: #2196F3;
}

.wechat-group[data-group="partner"]:hover .social-icon {
    background: #FF6B35;
}

.wechat-group[data-group="partner"]:hover .group-label {
    color: #FF6B35;
}

.footer-section h4 {
    color: white;
    font-weight: 600;
    margin-bottom: 16px;
}

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

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

.footer-section ul li a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.contact-info li {
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding: 24px 0;
}

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

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .comparison-table {
        overflow-x: auto;
    }
    
    .table-header,
    .table-row {
        min-width: 800px;
    }
    
    .download-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 50px;
        transition: left 0.3s ease;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .testimonials {
        grid-template-columns: 1fr;
    }
    
    .download-features {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }
    
    .alternative-downloads {
        flex-direction: column;
        gap: 16px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .social-links {
        gap: 16px;
        justify-content: center;
    }
    
    .wechat-qr-popup {
        min-width: 160px;
        padding: 16px;
    }
    
    .group-label {
        font-size: 10px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .btn-large {
        padding: 14px 24px;
        font-size: 14px;
    }
    
    .device-screen {
        width: 240px;
        height: 420px;
    }
    
    .case-results {
        flex-direction: column;
        gap: 16px;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card {
        padding: 32px 24px;
    }
    
    .wechat-qr-popup {
        left: 50%;
        transform: translateX(-50%) translateY(10px) scale(0.95);
        bottom: 40px;
        width: 180px;
    }
    
    .wechat-qr-popup.show {
        transform: translateX(-50%) translateY(0) scale(1);
    }
}

/* 页面加载动画 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease forwards;
}

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

/* 页面加载状态 */
body:not(.loaded) .feature-card,
body:not(.loaded) .pricing-card {
    opacity: 0;
    transform: translateY(30px);
}

body.loaded .feature-card,
body.loaded .pricing-card {
    transition: all 0.3s ease;
}

/* 卡片悬停动画 */
.feature-card,
.pricing-card {
    transition: all 0.3s ease;
    will-change: transform, box-shadow;
}

/* Logo缩放动画优化 */
.logo svg {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

/* 微信群弹窗增强动画 */
.wechat-qr-popup {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(10px) scale(0.95);
}

.wechat-qr-popup.show {
    transform: translateY(0) scale(1);
}

/* 社交图标悬停效果 */
.wechat-group {
    transition: all 0.2s ease;
    cursor: pointer;
}

.wechat-group:hover {
    transform: translateY(-2px);
}

.wechat-group[data-group="customer"]:hover .social-icon {
    color: var(--success-color);
}

.wechat-group[data-group="tech"]:hover .social-icon {
    color: var(--primary-color);
}

.wechat-group[data-group="partner"]:hover .social-icon {
    color: var(--warning-color);
}

/* 移动端优化 */
@media (max-width: 768px) {
    .social-links {
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .wechat-group {
        min-width: 80px;
        padding: 8px;
        border-radius: 8px;
        -webkit-tap-highlight-color: transparent;
    }
    
    .group-label {
        font-size: 0.85rem;
        margin-top: 4px;
    }
}