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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-tap-highlight-color: transparent;
}

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

/* 按钮样式 */
.btn-primary, .btn-secondary {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.4);
}

.btn-large {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    }
    50% {
        box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
    }
    100% {
        box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    }
}

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

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

.btn-large {
    padding: 20px 40px;
    font-size: 18px;
    font-weight: 600;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    border-radius: 12px;
    min-width: 200px;
    justify-content: center;
}



/* 英雄区域 */
.hero {
    padding: 80px 0 80px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    white-space: nowrap;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    text-shadow: 0 0 30px rgba(102, 126, 234, 0.3);
    animation: titleGlow 3s ease-in-out infinite alternate;
}

@keyframes titleGlow {
    0% {
        filter: drop-shadow(0 0 10px rgba(102, 126, 234, 0.3));
    }
    100% {
        filter: drop-shadow(0 0 20px rgba(102, 126, 234, 0.6));
    }
}

/* 科技感装饰元素 */
.hero-title::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -20px;
    right: -20px;
    bottom: -10px;
    background: linear-gradient(45deg, transparent 30%, rgba(102, 126, 234, 0.1) 50%, transparent 70%);
    border-radius: 15px;
    z-index: -1;
    animation: techBg 4s ease-in-out infinite;
}

.hero-title::after {
    content: '';
    position: absolute;
    top: 50%;
    left: -30px;
    width: 4px;
    height: 60%;
    background: linear-gradient(to bottom, transparent, #667eea, transparent);
    transform: translateY(-50%);
    border-radius: 2px;
    animation: techLine 2s ease-in-out infinite;
}

@keyframes techBg {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.02);
    }
}

@keyframes techLine {
    0%, 100% {
        opacity: 0.5;
        height: 60%;
    }
    50% {
        opacity: 1;
        height: 80%;
    }
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 40px;
    line-height: 1.6;
    text-align: center;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
    position: relative;
}

.hero-buttons::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 300px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.3), transparent);
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
}

.stat-text {
    font-size: 1.1rem;
    color: #666;
    font-weight: 500;
    transition: color 0.3s ease;
}

.stat-text:hover {
    color: #667eea;
}

.stat-separator {
    font-size: 1.2rem;
    color: #999;
    font-weight: 300;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-demo {
    background: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    margin: 0 auto;
}

.before-after {
    display: flex;
    align-items: center;
    gap: 20px;
}

.image-container {
    text-align: center;
}

.demo-image {
    width: 200px;
    height: 250px;
    border-radius: 10px;
    margin-bottom: 10px;
    object-fit: cover;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* 桌面端图片尺寸 */
@media (min-width: 769px) {
    .demo-image {
        width: 200px;
        height: 250px;
    }
    
    .image-demo {
        width: auto;
        max-width: none;
    }
}

.demo-image:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.25);
}

.image-label {
    font-size: 0.9rem;
    color: #666;
    font-weight: 500;
}

.arrow {
    font-size: 2rem;
    color: #667eea;
}

/* 功能特性 */
.features {
    padding: 80px 0;
    background: white;
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #333;
}

.section-header p {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

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

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* 价格方案 */
.pricing {
    padding: 80px 0;
    background: #f8f9fa;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    position: relative;
    transition: transform 0.3s ease;
}

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

.pricing-card.featured {
    border: 2px solid #667eea;
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #667eea;
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #333;
}

.price {
    margin-bottom: 30px;
}

.currency {
    font-size: 1.2rem;
    color: #666;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: #667eea;
}

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

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
}

.pricing-features li {
    padding: 10px 0;
    color: #666;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.pricing-features i {
    color: #667eea;
}

/* 客户评价 */
.testimonials {
    padding: 80px 0;
    background: white;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 15px;
    transition: transform 0.3s ease;
}

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

.testimonial-content {
    margin-bottom: 20px;
}

.testimonial-content p {
    font-style: italic;
    color: #666;
    line-height: 1.6;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 1.2rem;
}

.avatar-1 {
    background: linear-gradient(135deg, #4A90E2 0%, #357ABD 100%);
}

.avatar-2 {
    background: linear-gradient(135deg, #50C878 0%, #3CB371 100%);
}

.avatar-3 {
    background: linear-gradient(135deg, #FF6B6B 0%, #E74C3C 100%);
}

/* 用户头像悬停效果 */
.author-avatar {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.author-avatar:hover {
    transform: scale(1.1);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.author-info h4 {
    font-weight: 600;
    color: #333;
    margin-bottom: 5px;
}

.author-info span {
    font-size: 0.9rem;
    color: #666;
}

/* 简单页脚 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 40px 0 20px;
}

.footer-content {
    text-align: center;
    margin-bottom: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.footer-logo i {
    color: #667eea;
}

.footer-section p {
    color: #bdc3c7;
    line-height: 1.6;
    margin-bottom: 20px;
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    color: #bdc3c7;
}

/* 响应式设计 */

/* 平板设备 (768px 及以下) */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 60px 0 60px;
        min-height: auto;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.1;
        white-space: normal;
    }
    
    .hero-title::before,
    .hero-title::after {
        display: none;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        margin-bottom: 30px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        width: 100%;
    }
    
    .btn-large {
        width: 100%;
        max-width: 280px;
        padding: 18px 36px;
        font-size: 16px;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 10px;
        flex-wrap: wrap;
        margin-top: 25px;
    }
    
    .stat-text {
        font-size: 1rem;
    }
    
    .stat-separator {
        font-size: 1rem;
    }
    
    .before-after {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }
    
    .arrow {
        transform: rotate(90deg);
        font-size: 2rem;
        margin: 10px 0;
    }
    
    .image-container {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .demo-image {
        width: 220px;
        height: 280px;
    }
    
    .image-demo {
        padding: 25px;
        width: 90%;
        max-width: 400px;
    }
    
    .image-content i {
        font-size: 3.5rem;
    }
    
    .image-content span {
        font-size: 1.1rem;
    }
    
    .features {
        padding: 60px 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
    
    .section-header h2 {
        font-size: 2.2rem;
    }
    
    .section-header p {
        font-size: 1rem;
    }
}

/* 手机设备 (480px 及以下) */
@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .hero {
        padding: 40px 0 40px;
    }
    
    .hero-container {
        gap: 30px;
    }
    
    .hero-title {
        font-size: 2rem;
        margin-bottom: 15px;
        white-space: normal;
    }
    
    .hero-title::before,
    .hero-title::after {
        display: none;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 25px;
    }
    
    .btn-large {
        max-width: 250px;
        padding: 16px 32px;
        font-size: 15px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 8px;
        margin-top: 20px;
    }
    
    .stat-text {
        font-size: 0.95rem;
    }
    
    .stat-separator {
        display: none;
    }
    
    .demo-image {
        width: 200px;
        height: 250px;
    }
    
    .image-demo {
        padding: 20px;
        width: 95%;
        max-width: 350px;
    }
    
    .image-content i {
        font-size: 3rem;
    }
    
    .image-content span {
        font-size: 1rem;
    }
    
    .image-label {
        font-size: 0.9rem;
        margin-top: 8px;
    }
    
    .features {
        padding: 50px 0;
    }
    
    .feature-card {
        padding: 25px 15px;
    }
    
    .feature-icon {
        width: 60px;
        height: 60px;
    }
    
    .feature-icon i {
        font-size: 1.5rem;
    }
    
    .feature-card h3 {
        font-size: 1.2rem;
    }
    
    .feature-card p {
        font-size: 0.9rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
        margin-bottom: 10px;
    }
    
    .section-header p {
        font-size: 0.95rem;
    }
    
    .footer {
        padding: 30px 0 15px;
    }
    
    .footer-logo {
        font-size: 1.3rem;
    }
    
    .footer-section p {
        font-size: 0.9rem;
    }
}

/* 超小屏幕设备 (360px 及以下) */
@media (max-width: 360px) {
    .hero-title {
        font-size: 1.8rem;
        white-space: normal;
    }
    
    .hero-title::before,
    .hero-title::after {
        display: none;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
    }
    
    .btn-large {
        max-width: 220px;
        padding: 14px 28px;
        font-size: 14px;
    }
    
    .demo-image {
        width: 160px;
        height: 200px;
    }
    
    .image-content i {
        font-size: 2.5rem;
    }
    
    .image-content span {
        font-size: 0.9rem;
    }
    
    .image-demo {
        padding: 15px;
        width: 98%;
        max-width: 300px;
    }
    
    .feature-card {
        padding: 20px 12px;
    }
    
    .feature-icon {
        width: 50px;
        height: 50px;
    }
    
    .feature-icon i {
        font-size: 1.3rem;
    }
    
    .feature-card h3 {
        font-size: 1.1rem;
    }
    
    .feature-card p {
        font-size: 0.85rem;
    }
}