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

:root {
    --primary-color: #3b82f6;
    --secondary-color: #60a5fa;
    --dark-color: #2d3436;
    --light-color: #f8f9fa;
    --text-color: #333;
    --text-light: #666;
    --border-color: #e0e0e0;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --card-shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-color);
}

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

.header {
    background: white;
    box-shadow: var(--card-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 30px;
}

.company-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.logo-img {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    object-fit: contain;
    object-position: center;
}

.company-name {
    font-size: 0.9rem;
    font-weight: bold;
    color: var(--dark-color);
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--dark-color);
}

.logo-icon {
    font-size: 2rem;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.hero {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    padding: 80px 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr 1fr;
    align-items: center;
    gap: 2rem;
}

.hero-left,
.hero-right {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-center {
    text-align: center;
}

.pond {
    width: 250px;
    height: 200px;
    position: relative;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3), inset 0 0 60px rgba(255, 255, 255, 0.3);
    border: 4px solid rgba(255, 255, 255, 0.5);
}

.pond-water {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(56, 189, 248, 0.7) 0%, rgba(14, 165, 233, 0.8) 30%, rgba(2, 132, 199, 0.9) 60%, rgba(3, 105, 161, 0.95) 100%);
    position: absolute;
}

.pond-wave {
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: radial-gradient(ellipse, transparent 0%, transparent 60%, rgba(255, 255, 255, 0.4) 100%);
    animation: wave 5s infinite linear;
}

.wave1 {
    animation-delay: 0s;
}

.wave2 {
    animation-delay: -2.5s;
}

@keyframes wave {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.lobster-in-pond {
    position: absolute;
    font-size: 80px;
    z-index: 10;
    animation: swim 8s ease-in-out infinite;
}

@keyframes swim {
    0% {
        left: 20%;
        top: 40%;
        transform: scaleX(1) rotate(-10deg);
    }
    25% {
        left: 60%;
        top: 20%;
        transform: scaleX(1) rotate(5deg);
    }
    50% {
        left: 70%;
        top: 50%;
        transform: scaleX(-1) rotate(-5deg);
    }
    75% {
        left: 30%;
        top: 60%;
        transform: scaleX(-1) rotate(10deg);
    }
    100% {
        left: 20%;
        top: 40%;
        transform: scaleX(1) rotate(-10deg);
    }
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.btn {
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: white;
    color: var(--primary-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

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

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
}

.stat {
    text-align: center;
}

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

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

.software-section,
.features-section,
.pricing-section,
.contact-section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.filter-bar {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    border: 2px solid var(--border-color);
    background: white;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.software-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.software-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--card-shadow);
    transition: all 0.3s;
}

.software-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
}

.software-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.software-name {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--dark-color);
}

.software-type {
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.software-type.free {
    background: #e8f5e9;
    color: #2e7d32;
}

.software-type.paid {
    background: #fff3e0;
    color: #ef6c00;
}

.software-type.cloud {
    background: #e3f2fd;
    color: #1565c0;
}

.software-type.local {
    background: #f3e5f5;
    color: #7b1fa2;
}

.software-price {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: bold;
    margin: 1rem 0;
}

.software-price small {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: normal;
}

.software-features {
    list-style: none;
    margin: 1.5rem 0;
}

.software-features li {
    padding: 0.5rem 0;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 8px;
}

.software-features li::before {
    content: '✓';
    color: var(--secondary-color);
    font-weight: bold;
}

.software-footer {
    display: flex;
    gap: 1rem;
}

.software-footer .btn {
    flex: 1;
    padding: 10px;
    font-size: 0.9rem;
}

.u-claw-section {
    padding: 5rem 20px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.section-desc {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-color);
    max-width: 800px;
    margin: 0 auto 3rem;
}

.u-claw-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.u-claw-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: all 0.3s;
}

.u-claw-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.u-claw-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.u-claw-card h3 {
    font-size: 1.3rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.u-claw-card p {
    color: var(--text-light);
    line-height: 1.6;
}

.u-claw-price {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    max-width: 500px;
    margin: 0 auto;
}

.price-tag {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.price-label {
    font-size: 1.1rem;
    color: var(--text-color);
}

.price-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
}

.pricing-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--card-shadow);
    position: relative;
}

.pricing-card.featured {
    border: 3px solid var(--primary-color);
    transform: scale(1.05);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 5px 20px;
    border-radius: 15px;
    font-size: 0.9rem;
    font-weight: bold;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.pricing-card .price {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.price-features {
    list-style: none;
    text-align: left;
    margin-bottom: 2rem;
}

.price-features li {
    padding: 0.7rem 0;
    color: var(--text-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.contact-icon {
    font-size: 2.5rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-color);
    border-radius: 50%;
}

.contact-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
    color: var(--dark-color);
}

.contact-item p {
    color: var(--text-light);
}

.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.contact-form .btn {
    width: 100%;
}

.footer {
    background: var(--dark-color);
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 30px;
}

.footer-logo .company-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.footer-logo .company-name {
    color: white;
}

.footer-logo .brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: bold;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 768px) {
    .u-claw-features {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .hero-left,
    .hero-right {
        order: 2;
    }
    
    .hero-center {
        order: 1;
    }
    
    .pond {
        width: 180px;
        height: 140px;
    }
    
    .lobster-in-pond {
        font-size: 50px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 2rem;
    }
    
    .nav {
        display: none;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
    }
}

@media (max-width: 550px) {
    .u-claw-features {
        grid-template-columns: 1fr;
    }
}