/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 1rem 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.nav-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1890FF;
}

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

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #1890FF;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    border-radius: 3px;
    transition: all 0.3s;
}

/* 首页横幅 */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-text {
    flex: 1;
    color: #fff;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

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

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-mockup {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: #fff;
    color: #667eea;
}

.btn-primary:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    transform: translateY(-2px);
}

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

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.2rem;
    color: #666;
}

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

.feature-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
    border: 1px solid #f0f0f0;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* 任务类型 */
.task-types {
    padding: 100px 0;
    background: #f8f9fa;
}

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

.task-type-card {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.task-type-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.task-type-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.task-type-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.task-type-card p {
    color: #666;
    line-height: 1.6;
}

/* 优势特点 */
.advantages {
    padding: 100px 0;
    background: #fff;
}

.advantages-list {
    max-width: 900px;
    margin: 0 auto;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 30px;
    margin-bottom: 50px;
}

.advantage-number {
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    min-width: 100px;
}

.advantage-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.advantage-content p {
    color: #666;
    line-height: 1.8;
    font-size: 1.1rem;
}

/* 数据统计 */
.stats {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 50px;
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* CTA区域 */
.cta {
    padding: 100px 0;
    background: #f8f9fa;
}

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

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #333;
}

.cta-content p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
}

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

/* 页面标题 */
.page-header {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 功能详情 */
.feature-details {
    padding: 80px 0;
    background: #fff;
}

.feature-detail {
    margin-bottom: 80px;
}

.feature-detail-content {
    display: flex;
    gap: 50px;
    align-items: flex-start;
}

.feature-detail-icon {
    flex: 0 0 150px;
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: #fff;
    flex-shrink: 0;
}

.feature-detail-text {
    flex: 1;
}

.feature-detail-text h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #333;
}

.feature-detail-text > p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #555;
    line-height: 1.6;
}

.feature-list i {
    color: #667eea;
    font-size: 0.8rem;
}

/* 页脚 */
.footer {
    background: #1a1a1a;
    color: #fff;
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 50px;
    margin-bottom: 50px;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: #fff;
}

.footer-brand {
    margin-bottom: 20px;
}

.footer-brand p {
    color: #999;
    line-height: 1.6;
    margin-top: 15px;
}

.footer-logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.footer-social {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.2rem;
    transition: all 0.3s;
}

.social-link:hover {
    background: #1890FF;
    transform: translateY(-3px);
}

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

.footer-section li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #999;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #1890FF;
}

.contact-info li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.contact-info i {
    color: #1890FF;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: #999;
}

/* 公司介绍 */
.company-intro {
    padding: 80px 0;
    background: #fff;
}

.intro-content {
    display: flex;
    gap: 60px;
    align-items: center;
}

.intro-text {
    flex: 1;
}

.intro-text h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #333;
}

.intro-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #666;
    margin-bottom: 1.5rem;
}

.intro-image {
    flex: 1;
    text-align: center;
}

.about-img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

/* 企业文化 */
.company-culture {
    padding: 80px 0;
    background: #f8f9fa;
}

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

.culture-card {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.culture-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.culture-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
}

.culture-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.culture-card p {
    color: #666;
    line-height: 1.6;
}

/* 发展历程 */
.timeline {
    padding: 80px 0;
    background: #fff;
}

.timeline-list {
    max-width: 800px;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    gap: 30px;
    margin-bottom: 50px;
}

.timeline-year {
    flex: 0 0 120px;
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.timeline-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.timeline-content p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

/* 核心团队 */
.team {
    padding: 80px 0;
    background: #f8f9fa;
}

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

.team-card {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.team-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.team-avatar {
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: #fff;
}

.team-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.team-card p {
    color: #666;
    line-height: 1.6;
}

/* 产品总监联系信息 */
.team-contact {
    margin-top: 15px;
    font-size: 0.9rem;
    color: #888;
    line-height: 1.6;
}

.team-contact i {
    margin-right: 5px;
    color: #667eea;
}

/* 联系我们 */
.contact {
    padding: 80px 0;
    background: #fff;
}

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

.contact-card {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid #f0f0f0;
    transition: all 0.3s;
}

.contact-card:hover {
    border-color: #667eea;
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.1);
}

.contact-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
}

.contact-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.contact-card p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

/* 微信小程序部分 */
.miniapp-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.miniapp-section .section-header h2 {
    color: #fff;
}

.miniapp-section .section-header p {
    color: rgba(255, 255, 255, 0.9);
}

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

.qr-code-wrapper {
    display: flex;
    justify-content: center;
}

.qr-code-box {
    background: #fff;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    text-align: center;
}

.qr-code-img {
    width: 280px;
    height: 280px;
    object-fit: contain;
    display: block;
    margin: 0 auto;
}

.qr-code-hint {
    margin-top: 20px;
    color: #666;
    font-size: 1.1rem;
    font-weight: 600;
}

.miniapp-features h3 {
    font-size: 2rem;
    margin-bottom: 30px;
    color: #fff;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: rgba(255, 255, 255, 0.1);
    padding: 25px;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(10px);
}

.feature-item i {
    font-size: 2.5rem;
    color: #fff;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
}

.feature-text h4 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: #fff;
}

.feature-text p {
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .miniapp-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .feature-item {
        flex-direction: column;
        text-align: left;
    }

    .qr-code-img {
        width: 240px;
        height: 240px;
    }
}

@media (max-width: 768px) {
    .miniapp-section {
        padding: 60px 0;
    }

    .miniapp-features h3 {
        font-size: 1.6rem;
    }

    .qr-code-box {
        padding: 20px;
    }

    .qr-code-img {
        width: 200px;
        height: 200px;
    }
}

/* 下载页面 */
.download-section {
    padding: 60px 0;
    background: #fff;
}

.download-method {
    text-align: center;
    padding: 60px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    border-radius: 20px;
    margin-bottom: 60px;
}

.download-icon {
    color: #667eea;
    margin-bottom: 20px;
}

.download-method h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.download-method > p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
}

.download-features {
    list-style: none;
    display: inline-grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px 30px;
    margin-bottom: 40px;
    text-align: left;
}

.download-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #555;
}

.download-features i {
    color: #667eea;
}

.download-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.qrcode-placeholder {
    text-align: center;
}

.qrcode {
    width: 200px;
    height: 200px;
    background: #fff;
    border: 2px solid #667eea;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
}

.qrcode-hint {
    color: #666;
    font-size: 0.9rem;
}

.version-info {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 20px;
    margin-bottom: 40px;
    text-align: center;
}

.version-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #333;
}

.version-info p {
    color: #666;
    margin-bottom: 10px;
}

.version-links {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 20px;
}

.version-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: #fff;
    color: #667eea;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s;
}

.version-link:hover {
    background: #667eea;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.system-requirements {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 20px;
    margin-bottom: 60px;
}

.system-requirements h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-align: center;
    color: #333;
}

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

.req-item {
    text-align: center;
    padding: 20px;
    background: #fff;
    border-radius: 10px;
}

.req-item i {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 15px;
}

.req-item h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: #333;
}

.req-item p {
    color: #666;
    line-height: 1.6;
}

.download-tips {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

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

.tip-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    backdrop-filter: blur(10px);
}

.tip-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.tip-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.tip-card p {
    opacity: 0.9;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .hero .container {
        flex-direction: column;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .features-grid,
    .task-types-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .advantage-item {
        flex-direction: column;
        text-align: center;
    }

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

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2rem;
    }

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

    .stat-number {
        font-size: 2.5rem;
    }
}