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

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 15, 30, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 150, 255, 0.1);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: linear-gradient(135deg, #00c6ff, #0072ff);
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #00c6ff, #0072ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-menu a {
    color: #fff;
    text-decoration: none;
    font-weight: 400;
    transition: color 0.3s;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #00c6ff, #0072ff);
    transition: width 0.3s;
}

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0a0f1e 0%, #1a1f3e 50%, #0a1929 100%);
    z-index: -2;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(0, 198, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 114, 255, 0.1) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: #00c6ff;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.btn-primary {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, #00c6ff, #0072ff);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 500;
    transition: transform 0.3s, box-shadow 0.3s;
    animation: fadeInUp 1s ease-out 0.4s both;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 114, 255, 0.4);
}

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

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    display: block;
    width: 30px;
    height: 50px;
    border: 2px solid #00c6ff;
    border-radius: 25px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: #00c6ff;
    border-radius: 50%;
    animation: scroll 1.5s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

@keyframes scroll {
    0% { opacity: 1; top: 10px; }
    100% { opacity: 0; top: 30px; }
}

section {
    padding: 100px 0;
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1a1f3e;
    margin-bottom: 1rem;
}

.underline {
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #00c6ff, #0072ff);
    margin: 0 auto;
    border-radius: 2px;
}

.about {
    background: #f8f9fa;
}

.about-intro {
    margin-bottom: 60px;
    text-align: center;
}

.about-intro-text h3 {
    font-size: 1.8rem;
    color: #1a1f3e;
    margin-bottom: 1rem;
}

.about-intro-text p {
    font-size: 1.15rem;
    color: #555;
    line-height: 1.8;
    max-width: 900px;
    margin: 0 auto;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.feature-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 114, 255, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid rgba(0, 114, 255, 0.1);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 114, 255, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.feature-card h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1a1f3e;
    margin-bottom: 1rem;
}

.feature-card p {
    color: #666;
    line-height: 1.7;
    font-size: 0.98rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 114, 255, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.stat-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 114, 255, 0.2);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #00c6ff, #0072ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #666;
    font-size: 0.95rem;
}

.services {
    background: #fff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.service-card {
    padding: 40px 30px;
    background: linear-gradient(135deg, #f8f9fa 0%, #fff 100%);
    border-radius: 20px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid rgba(0, 114, 255, 0.1);
}

.service-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 50px rgba(0, 114, 255, 0.2);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #1a1f3e;
    margin-bottom: 1rem;
}

.service-card p {
    color: #666;
    line-height: 1.7;
}

.contact {
    background: linear-gradient(135deg, #0a0f1e 0%, #1a1f3e 100%);
    color: #fff;
}

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

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-icon {
    font-size: 2rem;
    min-width: 50px;
}

.contact-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: #00c6ff;
}

.contact-item p {
    color: #ccc;
    line-height: 1.6;
}

.map-container {
    width: 100%;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 150, 255, 0.2);
}

.map-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.map-placeholder {
    background: linear-gradient(135deg, rgba(0, 198, 255, 0.1) 0%, rgba(0, 114, 255, 0.1) 100%);
    border: 2px dashed rgba(0, 198, 255, 0.5);
    border-radius: 15px;
    padding: 40px 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.map-placeholder:hover {
    background: linear-gradient(135deg, rgba(0, 198, 255, 0.2) 0%, rgba(0, 114, 255, 0.2) 100%);
    border-color: rgba(0, 198, 255, 0.8);
    transform: translateY(-3px);
}

.map-icon {
    font-size: 4rem;
    margin-bottom: 15px;
}

.map-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #00c6ff;
    margin-bottom: 10px;
}

.map-address {
    font-size: 0.95rem;
    color: #ccc;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px 20px;
    margin-bottom: 1.5rem;
    border: 2px solid rgba(0, 198, 255, 0.2);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-size: 1rem;
    font-family: 'Noto Sans SC', sans-serif;
    transition: border-color 0.3s, background 0.3s;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: #888;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #00c6ff;
    background: rgba(255, 255, 255, 0.1);
}

.footer {
    background: #050a14;
    color: #888;
    text-align: center;
    padding: 30px 0;
}

@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-features {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    /* 移动端汉堡菜单 */
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: rgba(10, 15, 30, 0.98);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
        transition: right 0.3s ease;
        margin: 0;
        padding: 0;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu li {
        list-style: none;
    }
    
    .nav-menu a {
        font-size: 1.2rem;
        color: #fff;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: repeat(1, 1fr);
    }
}

/* 招聘页面样式 */
.logo a {
    text-decoration: none;
    color: inherit;
}

.careers-hero {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding-top: 80px;
}

.careers-intro {
    background: #f8f9fa;
}

.intro-content h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #1a1f3e;
    margin-bottom: 50px;
}

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

.intro-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 114, 255, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid rgba(0, 114, 255, 0.1);
}

.intro-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 114, 255, 0.2);
}

.intro-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.intro-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1a1f3e;
    margin-bottom: 1rem;
}

.intro-card p {
    color: #666;
    line-height: 1.7;
}

.job-listings {
    background: #fff;
}

.jobs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.job-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #fff 100%);
    border-radius: 20px;
    padding: 35px;
    border: 1px solid rgba(0, 114, 255, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.job-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 114, 255, 0.2);
}

.job-header {
    margin-bottom: 25px;
}

.job-header h3 {
    font-size: 1.5rem;
    color: #1a1f3e;
    margin-bottom: 15px;
}

.job-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tag {
    display: inline-block;
    padding: 6px 15px;
    background: linear-gradient(135deg, #00c6ff, #0072ff);
    color: #fff;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.job-description {
    margin-bottom: 25px;
}

.job-description h4 {
    font-size: 1.1rem;
    color: #1a1f3e;
    margin: 20px 0 10px;
}

.job-description h4:first-child {
    margin-top: 0;
}

.job-description ul {
    margin-left: 20px;
    color: #555;
    line-height: 1.8;
}

.job-description li {
    margin-bottom: 8px;
}

.apply-btn {
    width: 100%;
    padding: 15px;
}

/* 弹窗样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    overflow-y: auto;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-content {
    background: #fff;
    border-radius: 20px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 1px solid #eee;
}

.modal-header h3 {
    font-size: 1.5rem;
    color: #1a1f3e;
}

.close-modal {
    font-size: 2rem;
    color: #999;
    cursor: pointer;
    line-height: 1;
    transition: color 0.3s;
}

.close-modal:hover {
    color: #0072ff;
}

#applicationForm {
    padding: 30px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #1a1f3e;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #eee;
    border-radius: 10px;
    font-size: 1rem;
    font-family: 'Noto Sans SC', sans-serif;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00c6ff;
}

.form-group input[readonly] {
    background: #f5f5f5;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .jobs-grid {
        grid-template-columns: 1fr;
    }
    
    .intro-grid {
        grid-template-columns: 1fr;
    }
}