/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fefefe;
}

.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;
    border-bottom: 1px solid rgba(255, 165, 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;
}

.nav-logo h2 {
    color: #ff6b35;
    font-weight: 700;
    font-size: 28px;
    margin: 0;
}

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

.nav-menu a {
    text-decoration: none;
    color: #555;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: #ff6b35;
}

.nav-cta {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: white !important;
    padding: 12px 24px;
    border-radius: 25px;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.3);
}

/* 主要展示区域 */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #fff5f0 0%, #fef7f0 100%);
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    color: #2c3e50;
}

.highlight {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.7;
}

.hero-features {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.feature-pill {
    background: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: #555;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 165, 0, 0.2);
}

.hero-actions {
    display: flex;
    gap: 20px;
}

.btn-primary, .btn-secondary {
    padding: 16px 32px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4);
}

.btn-secondary {
    background: white;
    color: #ff6b35;
    border: 2px solid #ff6b35;
}

.btn-secondary:hover {
    background: #ff6b35;
    color: white;
}

/* 手机模型 */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: #2c3e50;
    border-radius: 40px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transform: rotate(-5deg);
    transition: transform 0.3s ease;
}

.phone-mockup:hover {
    transform: rotate(0deg) scale(1.05);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    border-radius: 30px;
    padding: 30px 20px;
}

.app-preview {
    background: white;
    height: 100%;
    border-radius: 20px;
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.app-header {
    text-align: center;
    font-weight: 700;
    font-size: 18px;
    color: #ff6b35;
    margin-bottom: 30px;
}

.app-cards {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.card {
    padding: 15px;
    border-radius: 12px;
    color: white;
    font-weight: 600;
    text-align: center;
}

.card-1 { background: linear-gradient(135deg, #667eea, #764ba2); }
.card-2 { background: linear-gradient(135deg, #f093fb, #f5576c); }
.card-3 { background: linear-gradient(135deg, #4facfe, #00f2fe); }

/* 功能特色 */
.features {
    padding: 100px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    color: #2c3e50;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 165, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #2c3e50;
}

.feature-card p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 8px 0;
    color: #555;
    position: relative;
    padding-left: 20px;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #ff6b35;
    font-weight: bold;
}

/* 工作原理 */
.how-it-works {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9ff 0%, #fff5f0 100%);
}

.workflow-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: white;
    padding: 30px 20px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    min-width: 200px;
    flex: 1;
    max-width: 250px;
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.step-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #2c3e50;
}

.step-content p {
    color: #666;
    font-size: 0.9rem;
}

.step-arrow {
    font-size: 2rem;
    color: #ff6b35;
    margin: 0 10px;
}

/* 使用场景 */
.use-cases {
    padding: 100px 0;
    background: white;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.case-card {
    background: linear-gradient(135deg, #fff 0%, #f8f9ff 100%);
    padding: 40px 30px;
    border-radius: 20px;
    border: 1px solid rgba(255, 165, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.case-avatar {
    font-size: 3rem;
    margin-bottom: 20px;
}

.case-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #2c3e50;
}

.case-card p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.7;
}

.case-example {
    background: white;
    padding: 15px;
    border-radius: 10px;
    border-left: 4px solid #ff6b35;
    font-size: 0.9rem;
    color: #555;
}

/* 价格方案 */
.pricing {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9ff 0%, #fff5f0 100%);
}

.pricing-grid {
    display: flex;
    justify-content: center;
    max-width: 800px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    text-align: center;
    position: relative;
    transition: transform 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-10px);
}

.pricing-card.featured {
    border: 2px solid #ff6b35;
    transform: scale(1.05);
    max-width: 400px;
}

.trial-note {
    margin-top: 15px;
    font-size: 0.85rem;
    color: #888;
    font-style: italic;
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #2c3e50;
}

.price {
    font-size: 3rem;
    font-weight: 700;
    color: #ff6b35;
    margin-bottom: 30px;
}

.price span {
    font-size: 1rem;
    color: #666;
}

.pricing-features {
    list-style: none;
    margin-bottom: 40px;
}

.pricing-features li {
    padding: 10px 0;
    color: #555;
    border-bottom: 1px solid #f0f0f0;
}

.btn-outline {
    background: transparent;
    color: #ff6b35;
    border: 2px solid #ff6b35;
    padding: 16px 32px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: #ff6b35;
    color: white;
}

/* 下载区域 */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: white;
    text-align: center;
}

.download-subtitle {
    font-size: 1.2rem;
    margin-bottom: 50px;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.1);
    padding: 20px 30px;
    border-radius: 15px;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.download-icon {
    font-size: 2.5rem;
}

.download-text {
    font-size: 0.8rem;
    opacity: 0.8;
}

.download-store {
    font-size: 1.2rem;
    font-weight: 600;
}

.notify-signup {
    margin-top: 50px;
    text-align: center;
}

.notify-signup p {
    margin-bottom: 25px;
    font-size: 1.1rem;
    opacity: 0.9;
}

.email-signup {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    max-width: 400px;
    margin: 0 auto;
}

.email-input {
    flex: 1;
    min-width: 250px;
    padding: 15px 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    backdrop-filter: blur(10px);
}

.email-input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.email-input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.2);
}

.btn-notify {
    padding: 15px 25px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.btn-notify:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* 页脚 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 60px 0 30px;
}

.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: #ff6b35;
}

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

.footer-section ul li {
    padding: 5px 0;
}

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #ff6b35;
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 30px;
    text-align: center;
    color: #bdc3c7;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .workflow-steps {
        flex-direction: column;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
    
    .nav-menu {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
}