/* 现代化重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #2d3748;
    background-color: #ffffff;
    overflow-x: hidden;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: inherit;
}

.logo {
    width: 40px;
    height: 40px;
}
.foot-logo {
    width: 30px;
    height: 30px;
}
.brand-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #4a5568;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #667eea;
    background: rgba(102, 126, 234, 0.1);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 80%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #4a5568;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* 主页横幅 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.hero-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    right: -150px;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    bottom: 20%;
    left: -100px;
    animation-delay: 2s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-container {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text {
    color: white;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
}

.gradient-text {
    background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 3rem;
    opacity: 0.8;
    max-width: 500px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    min-width: 140px;
}

.btn-primary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-primary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.btn-outline {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.5);
}

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

/* 视觉卡片 */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 2rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.card-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.card-dots {
    display: flex;
    gap: 0.5rem;
}

.card-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
}

.card-dots span:nth-child(1) { background: #ff5f56; }
.card-dots span:nth-child(2) { background: #ffbd2e; }
.card-dots span:nth-child(3) { background: #27ca3f; }

.code-lines {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.9rem;
    line-height: 1.8;
}

.code-line {
    margin-bottom: 0.5rem;
    animation: typewriter 0.5s ease-in-out;
}

.code-indent {
    padding-left: 2rem;
}

.code-keyword { color: #ff79c6; }
.code-variable { color: #8be9fd; }
.code-operator { color: #ff79c6; }
.code-string { color: #f1fa8c; }
.code-function { color: #50fa7b; }
.code-bracket { color: #f8f8f2; }

/* 关于我们 */
.about {
    padding: 120px 0;
    background: #f8fafc;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.2rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: stretch;
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.about-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.about-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #2d3748;
}

.about-card p {
    color: #64748b;
    line-height: 1.8;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    height: 100%;
    justify-content: center;
}

.stat-item {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
}

.stat-unit {
    font-size: 1.5rem;
    color: #667eea;
}

.stat-label {
    color: #64748b;
    font-weight: 500;
}

/* 服务项目 */
.services {
    padding: 120px 0;
    background: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 3rem 2rem;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    transition: all 0.4s ease;
}

.service-card:hover::before {
    left: 0;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    position: relative;
    z-index: 2;
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #2d3748;
    position: relative;
    z-index: 2;
}

.service-card p {
    color: #64748b;
    line-height: 1.8;
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    position: relative;
    z-index: 2;
}

.service-features span {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* 产品展示 */
.products {
    padding: 120px 0;
    background: #f8fafc;
}

.product-showcase {
    margin-top: 4rem;
}

.product-card {
    background: white;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    min-height: 500px;
}

.product-image {
    padding: 3rem;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.phone-mockup {
    width: 250px;
    height: 500px;
    background: #1a1a1a;
    border-radius: 30px;
    padding: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    position: relative;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: #333;
    border-radius: 2px;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.phone-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info {
    padding: 3rem;
}

.product-info h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-tagline {
    font-size: 1.2rem;
    color: #667eea;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.product-description {
    color: #64748b;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.product-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

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

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

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.btn-outline {
    background: transparent;
    color: #667eea;
    border: 2px solid #667eea;
}

.btn-outline:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
}

/* 联系我们 */
.contact {
    padding: 120px 0;
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 4rem;
}

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

.contact-card {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

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

.contact-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 1rem;
    color: #667eea;
}

.contact-card h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #2d3748;
}

.contact-card p {
    color: #64748b;
}

.contact-form {
    background: #f8fafc;
    padding: 3rem;
    border-radius: 24px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    border: 2px solid transparent;
    border-radius: 12px;
    background: white;
    font-size: 1rem;
    transition: all 0.3s ease;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

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

/* 页脚 */
.footer {
    background: #1a202c;
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.footer-brand .logo {
    width: 40px;
    height: 40px;
}

.footer-brand h3 {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #a0aec0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #667eea;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: #a0aec0;
}

.footer-bottom {
    border-top: 1px solid #2d3748;
    padding-top: 2rem;
    text-align: center;
    color: #a0aec0;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .product-card {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .stat-item {
        flex: 1;
        min-width: 150px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .phone-mockup {
        width: 200px;
        height: 400px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .nav-container {
        padding: 0 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .service-card {
        padding: 2rem 1.5rem;
    }
    
    .product-info {
        padding: 2rem;
    }
    
    .contact-form {
        padding: 2rem;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 滚动指示器 */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(102, 126, 234, 0.2);
    z-index: 9999;
}

.scroll-progress {
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    width: 0%;
    transition: width 0.1s ease;
}

/* 赶海宝产品页面样式 */
.product-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #0f4c75 0%, #3282b8 50%, #bbe1fa 100%);
    padding-top: 80px;
}

.product-hero .shape-4 {
    width: 400px;
    height: 400px;
    top: 30%;
    left: 10%;
    animation-delay: 1s;
}

.product-hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.product-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    color: white;
    font-weight: 500;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.badge-icon {
    font-size: 1.2rem;
}

.product-hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: white;
}

.product-hero-description {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 500px;
}

.hero-features {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.hero-features .feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    color: white;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-features .feature-icon {
    font-size: 1.5rem;
}

.download-section {
    display: flex;
    gap: 3rem;
    align-items: center;
    flex-wrap: wrap;
}

.qr-code-section {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.qr-code {
    background: white;
    padding: 1.5rem;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    text-align: center;
}

.qr-placeholder {
    margin-bottom: 1rem;
}

.qr-text {
    color: #2d3748;
    font-weight: 500;
    font-size: 0.9rem;
}

/* 手机展示 */
.phone-showcase {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-frame {
    width: 280px;
    height: 560px;
    background: #1a1a1a;
    border-radius: 40px;
    padding: 20px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
    position: relative;
    z-index: 2;
}

.phone-frame::before {
    content: '';
    position: absolute;
    top: 15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 6px;
    background: #333;
    border-radius: 3px;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 30px;
    overflow: hidden;
    position: relative;
}

.app-interface {
    padding: 1.5rem 1rem;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: #2d3748;
}

.time {
    font-weight: 700;
}

.indicators {
    display: flex;
    gap: 0.25rem;
}

.app-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.app-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.weather-info {
    display: flex;
    justify-content: center;
    gap: 1rem;
    color: #64748b;
    font-size: 0.9rem;
}

.tide-card {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.tide-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tide-icon {
    font-size: 1.2rem;
}

.tide-title {
    font-weight: 600;
    color: #2d3748;
}

.tide-chart {
    position: relative;
    height: 60px;
    background: #f1f5f9;
    border-radius: 8px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.tide-curve {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #3b82f6 0%, #06b6d4 50%, #3b82f6 100%);
    transform: translateY(-50%);
}

.tide-curve::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 20%;
    width: 20px;
    height: 20px;
    background: #3b82f6;
    border-radius: 50%;
    animation: float 2s ease-in-out infinite;
}

.tide-curve::after {
    content: '';
    position: absolute;
    top: 10px;
    right: 30%;
    width: 16px;
    height: 16px;
    background: #06b6d4;
    border-radius: 50%;
    animation: float 2s ease-in-out infinite reverse;
}

.tide-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: #64748b;
}

.quick-actions {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin-top: auto;
}

.action-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 0.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    font-size: 0.75rem;
    font-weight: 500;
    color: #2d3748;
}

.action-icon {
    font-size: 1.5rem;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 8px;
}

/* 浮动元素 */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: #2d3748;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    animation: floatCard 4s ease-in-out infinite;
}

.card-1 {
    top: 15%;
    right: -20px;
    animation-delay: 0s;
}

.card-2 {
    top: 45%;
    left: -30px;
    animation-delay: 1.5s;
}

.card-3 {
    bottom: 25%;
    right: -25px;
    animation-delay: 3s;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(2deg); }
}

/* 应用截图展示 */
.app-screenshots {
    padding: 120px 0;
    background: white;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

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

.screenshot-frame {
    width: 200px;
    height: 400px;
    margin: 0 auto 2rem;
    background: #1a1a1a;
    border-radius: 30px;
    padding: 15px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.screenshot-frame::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: #333;
    border-radius: 2px;
    z-index: 2;
}

.screenshot-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

.screenshot-info h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #2d3748;
}

.screenshot-info p {
    color: #64748b;
    line-height: 1.6;
}

/* 产品特色功能 */
.product-features {
    padding: 120px 0;
    background: #f8fafc;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.feature-card {
    background: white;
    padding: 3rem 2rem;
    border-radius: 24px;
    text-align: left;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.03) 0%, rgba(118, 75, 162, 0.03) 100%);
    transition: all 0.4s ease;
}

.feature-card:hover::before {
    left: 0;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.feature-icon-wrapper {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}

.feature-icon-wrapper .feature-icon {
    font-size: 2rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #2d3748;
    position: relative;
    z-index: 2;
}

.feature-card p {
    color: #64748b;
    line-height: 1.8;
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}

.feature-list {
    list-style: none;
    position: relative;
    z-index: 2;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: #4a5568;
    font-size: 0.95rem;
}

.feature-list li::before {
    content: '✓';
    color: #667eea;
    font-weight: bold;
    font-size: 1rem;
}

/* 用户评价 */
.testimonials {
    padding: 120px 0;
    background: white;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.testimonial-card {
    background: #f8fafc;
    padding: 2.5rem;
    border-radius: 24px;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.testimonial-card:hover {
    background: white;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.testimonial-content {
    margin-bottom: 2rem;
}

.stars {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.testimonial-content p {
    color: #4a5568;
    line-height: 1.8;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.author-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 0.25rem;
}

.author-info span {
    color: #64748b;
    font-size: 0.9rem;
}

/* 下载区域 */
.download-cta {
    padding: 120px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.download-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.download-text h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.download-text p {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.download-stats {
    display: flex;
    gap: 3rem;
    margin-bottom: 3rem;
}

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

.download-stats .stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.download-stats .stat-label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
    min-width: 180px;
}

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

.qr-code-large {
    background: white;
    padding: 2rem;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.qr-placeholder-large {
    margin-bottom: 1.5rem;
}

.qr-text-large {
    color: #2d3748;
    font-weight: 600;
    font-size: 1rem;
}

/* 响应式设计 - 产品页面 */
@media (max-width: 1024px) {
    .product-hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .download-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .download-section {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .product-hero-title {
        font-size: 2.5rem;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .phone-frame {
        width: 240px;
        height: 480px;
    }
    
    .screenshots-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .download-stats {
        justify-content: center;
        flex-wrap: wrap;
        gap: 2rem;
    }
    
    .download-text h2 {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .product-hero-title {
        font-size: 2rem;
    }
    
    .hero-features {
        flex-direction: column;
        align-items: center;
    }
    
    .download-section {
        flex-direction: column;
        gap: 2rem;
    }
    
    .phone-frame {
        width: 200px;
        height: 400px;
    }
    
    .feature-card {
        padding: 2rem 1.5rem;
    }
    
    .testimonial-card {
        padding: 2rem;
    }
    
    .download-text h2 {
        font-size: 2rem;
    }
}