:root {
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --secondary: #4cc9f0;
    --accent: #7209b7;
    --light: #f8f9fa;
    --dark: #212529;
    --gray: #6c757d;
    --border: #e9ecef;
    --success: #4bb543;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f7fa;
    color: var(--dark);
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 英雄区域样式 */
.hero {
    background: linear-gradient(135deg, #4361ee 0%, #3a0ca3 100%);
    color: white;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000" preserveAspectRatio="none"><path fill="rgba(255,255,255,0.05)" d="M0,0 L1000,0 L1000,1000 L0,1000 Z"><animate attributeName="d" dur="20s" repeatCount="indefinite" values="M0,0 L1000,0 L1000,1000 L0,1000 Z; M0,0 L1000,0 L1000,800 L0,1000 Z; M0,0 L1000,0 L1000,1000 L0,800 Z; M0,0 L1000,0 L1000,1000 L0,1000 Z"/></path></svg>');
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 24px;
    font-weight: 800;
    line-height: 1.2;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    padding: 10px 24px;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    border: none;
    font-size: 15px;
}

.btn-light {
    background: white;
    color: var(--primary);
    font-weight: 600;
}

.btn-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(255, 255, 255, 0.3);
}

/* 免费试用按钮专用样式 */
.btn-trial {
    background: #4cc9f0 !important;
    color: white !important;
    font-weight: 600 !important;
}

.btn-trial:hover {
    background: #3aaccf !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 16px rgba(76, 201, 240, 0.4) !important;
}

.btn-transparent {
    background: transparent;
    color: white;
    border: 1.5px solid rgba(255, 255, 255, 0.5);
}

.btn-transparent:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 1.5px solid white;
    font-weight: 600;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(67, 97, 238, 0.4);
}

/* 内容区域样式 */
.section {
    padding: 90px 0;
}

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

.section-title h2 {
    font-size: 2.4rem;
    color: var(--dark);
    margin-bottom: 18px;
    position: relative;
    display: inline-block;
}

.section-title h2:after {
    content: '';
    position: absolute;
    width: 70px;
    height: 4px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.section-title p {
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* 左右图文布局 */
.feature-block {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 100px;
    gap: 80px;
}

.feature-text {
    max-width: 500px;
    flex: 1;
}

.feature-block:nth-child(even) {
    flex-direction: row-reverse;
}

.feature-text {
    flex: 1;
}

.feature-text h3 {
    font-size: 1.9rem;
    margin-bottom: 22px;
    color: var(--dark);
    line-height: 1.3;
}

.feature-text p {
    margin-bottom: 22px;
    color: var(--gray);
    font-size: 1.05rem;
}

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

.feature-list li {
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.feature-list li i {
    color: var(--success);
    margin-top: 4px;
    flex-shrink: 0;
}

.feature-image {
    width: 620px;
    height: 404px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.5s, box-shadow 0.5s;
}

.feature-image:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 40px rgba(0, 0, 0, 0.15);
}

.feature-image img,
.feature-image svg {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s;
}

.feature-image:hover img,
.feature-image:hover svg {
    transform: scale(1.05);
}

/* 技术架构区域 */
.tech-architecture {
    background-color: white;
    border-radius: 16px;
    padding: 60px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    margin-top: 40px;
}

.architecture-title {
    text-align: center;
    margin-bottom: 50px;
}

.architecture-title h3 {
    font-size: 1.8rem;
    color: var(--dark);
    margin-bottom: 15px;
}

.architecture-title p {
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

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

.tech-item {
    text-align: center;
    padding: 30px 20px;
    border-radius: 12px;
    background: var(--light);
    transition: transform 0.3s, box-shadow 0.3s;
}

.tech-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.tech-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 28px;
}

.tech-item h4 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.tech-item p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* CTA区域 */
.cta {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    text-align: center;
    padding: 80px 0;
    border-radius: 16px;
    margin-top: 40px;
}

.cta h2 {
    font-size: 2.3rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.cta p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px;
    opacity: 0.9;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .feature-block {
        gap: 60px;
    }
    
    .feature-image {
        width: 500px;
        height: 330px;
    }
}

@media (max-width: 992px) {
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .feature-block {
        flex-direction: column;
        gap: 40px;
    }
    
    .feature-block:nth-child(even) {
        flex-direction: column;
    }
    
    .feature-image {
        width: 100%;
        max-width: 500px;
        height: 330px;
    }
    
    .hero h1 {
        font-size: 2.7rem;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-image {
        height: 250px;
    }
    
    .feature-text h3 {
        font-size: 1.6rem;
    }
    
    .tools-comparison {
        padding: 40px 20px;
    }
    
    .comparison-table {
        display: block;
        overflow-x: auto;
    }
    
    .tech-architecture {
        padding: 40px 20px;
    }
}