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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #2563eb;
}

.logo-image {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    margin-right: 10px;
    object-fit: cover;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

.nav-link:hover {
    color: #2563eb;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #2563eb;
    transition: width 0.3s ease;
}

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

.download-link {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: #1f2937 !important;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
    cursor: pointer;
}

.download-link:hover {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(251, 191, 36, 0.3);
    text-decoration: none;
}

.download-link::after {
    display: none !important;
}

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

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

/* 首页横幅 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
    padding: 0 20px;
    padding-top: 70px;
}

.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 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 2;
    position: relative;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 70px);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    margin-top: 0;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

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

.stat-item h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #fbbf24;
    margin-bottom: 5px;
}

.stat-item p {
    font-size: 0.9rem;
    opacity: 0.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
}

.cta-button {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.cta-button.primary {
    background: #fbbf24;
    color: #1f2937;
}

.cta-button.primary:hover {
    background: #f59e0b;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(251, 191, 36, 0.3);
}

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

.cta-button.secondary:hover {
    background: white;
    color: #1f2937;
    transform: translateY(-2px);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
    position: relative;
    max-width: 400px;
}

.network-animation {
    position: relative;
    width: 300px;
    height: 300px;
}

.node {
    position: absolute;
    width: 20px;
    height: 20px;
    background: #fbbf24;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.node:nth-child(1) {
    top: 50px;
    left: 50px;
    animation-delay: 0s;
}

.node:nth-child(2) {
    top: 150px;
    right: 50px;
    animation-delay: 0.5s;
}

.node:nth-child(3) {
    bottom: 50px;
    left: 150px;
    animation-delay: 1s;
}

.connection {
    position: absolute;
    height: 2px;
    background: rgba(251, 191, 36, 0.5);
    animation: flow 3s infinite;
}

.connection:nth-child(4) {
    top: 60px;
    left: 70px;
    width: 160px;
    transform: rotate(45deg);
}

.connection:nth-child(5) {
    top: 160px;
    left: 60px;
    width: 90px;
    transform: rotate(-45deg);
}

.connection:nth-child(6) {
    bottom: 60px;
    left: 160px;
    width: 110px;
    transform: rotate(45deg);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.7; }
}

@keyframes flow {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

/* 通用区块样式 */
section {
    padding: 80px 0;
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.1rem;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
}

/* 关于我们 */
.about {
    background: #f8fafc;
}

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

.about-text h3 {
    font-size: 1.8rem;
    color: #1f2937;
    margin-bottom: 20px;
}

.about-text p {
    font-size: 1.1rem;
    color: #6b7280;
    margin-bottom: 30px;
    line-height: 1.8;
}

.advantages {
    display: grid;
    gap: 20px;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.advantage-item i {
    font-size: 1.5rem;
    color: #2563eb;
    margin-top: 5px;
}

.advantage-item h4 {
    font-size: 1.2rem;
    color: #1f2937;
    margin-bottom: 5px;
}

.advantage-item p {
    color: #6b7280;
    margin: 0;
}

.company-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat-card {
    background: white;
    padding: 30px 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-card i {
    font-size: 2rem;
    color: #2563eb;
    margin-bottom: 15px;
}

.stat-card h4 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 5px;
}

.stat-card p {
    color: #6b7280;
    font-size: 0.9rem;
}

/* 服务内容 */
.services {
    background: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e5e7eb;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.service-icon i {
    font-size: 2rem;
    color: white;
}

.service-card h3 {
    font-size: 1.5rem;
    color: #1f2937;
    margin-bottom: 15px;
}

.service-card p {
    color: #6b7280;
    margin-bottom: 20px;
    line-height: 1.6;
}

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

.service-card li {
    color: #6b7280;
    margin-bottom: 8px;
    position: relative;
    padding-left: 20px;
}

.service-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

/* 合作伙伴 */
.partners {
    background: #f8fafc;
}

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

.partner-card {
    background: white;
    padding: 30px 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.partner-card:hover {
    transform: translateY(-5px);
}

.partner-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.partner-logo i {
    font-size: 2rem;
    color: white;
}

.partner-card h3 {
    font-size: 1.3rem;
    color: #1f2937;
    margin-bottom: 10px;
}

.partner-card p {
    color: #6b7280;
    font-size: 0.9rem;
}

/* 资源招募 */
.recruitment {
    background: white;
}

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

.recruitment-info h3 {
    font-size: 1.8rem;
    color: #1f2937;
    margin-bottom: 30px;
}

.benefits {
    display: grid;
    gap: 25px;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.benefit-item i {
    font-size: 1.5rem;
    color: #10b981;
    margin-top: 5px;
}

.benefit-item h4 {
    font-size: 1.2rem;
    color: #1f2937;
    margin-bottom: 8px;
}

.benefit-item p {
    color: #6b7280;
    margin: 0;
    line-height: 1.6;
}

.recruitment-form {
    background: #f8fafc;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.recruitment-form h3 {
    font-size: 1.5rem;
    color: #1f2937;
    margin-bottom: 30px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #374151;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
}

.submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}

/* 联系我们 */
.contact {
    background: #f8fafc;
}

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

.contact-info {
    display: grid;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-item i {
    font-size: 1.5rem;
    color: #2563eb;
    margin-top: 5px;
}

.contact-item h4 {
    font-size: 1.2rem;
    color: #1f2937;
    margin-bottom: 5px;
}

.contact-item p {
    color: #6b7280;
    margin: 0;
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.contact-form h3 {
    font-size: 1.5rem;
    color: #1f2937;
    margin-bottom: 30px;
    text-align: center;
}

/* 页脚 */
.footer {
    background: #1f2937;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: #fbbf24;
}

.footer-section p {
    color: #d1d5db;
    line-height: 1.6;
    margin-bottom: 20px;
}

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

.footer-section li {
    margin-bottom: 10px;
    color: #d1d5db;
}

.footer-section a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #fbbf24;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: #374151;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
}

.social-links a:hover {
    background: #fbbf24;
    color: #1f2937;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #374151;
    color: #9ca3af;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

.modal-header {
    padding: 30px 30px 20px;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    color: #1f2937;
    margin: 0;
}

.close {
    color: #6b7280;
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: #1f2937;
}

.modal-body {
    padding: 30px;
    text-align: center;
}

.success-icon {
    font-size: 4rem;
    color: #10b981;
    margin-bottom: 20px;
}

.modal-body p {
    color: #6b7280;
    font-size: 1.1rem;
    line-height: 1.6;
}

.modal-footer {
    padding: 20px 30px 30px;
    text-align: center;
}

.modal-btn {
    padding: 12px 30px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.modal-btn:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 动画效果 */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    animation: fadeInRight 0.8s ease forwards;
}

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

@keyframes fadeInRight {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
    }

    .nav-menu.active {
        left: 0;
    }
    
    .download-link {
        background: linear-gradient(135deg, #fbbf24, #f59e0b);
        color: #1f2937 !important;
        padding: 8px 16px;
        border-radius: 20px;
        font-weight: 600;
        margin: 10px 0;
        display: inline-block;
    }

    .hero {
        flex-direction: column;
        text-align: center;
        padding: 70px 20px 60px;
        justify-content: center;
        align-items: center;
    }

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

    .hero-stats {
        justify-content: center;
        gap: 30px;
    }

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

    .about-content,
    .recruitment-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .company-stats {
        grid-template-columns: 1fr;
    }

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

    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}

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

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

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .cta-button {
        padding: 12px 20px;
        font-size: 0.9rem;
    }

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

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

         .recruitment-form,
     .contact-form {
         padding: 30px 20px;
     }
 }