/* 全局样式 */
:root {
    --primary: #FF7B9C;
    --primary-light: #FFB4C8;
    --primary-dark: #E85A7B;
    --secondary: #7DD3C0;
    --secondary-light: #B8E8DC;
    --accent: #FFD93D;
    --bg-cream: #FFF9F5;
    --bg-peach: #FFF0E8;
    --bg-white: #FFFFFF;
    --text-dark: #333333;
    --text-gray: #666666;
    --text-light: #999999;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background-color: var(--bg-cream);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, #FF9B6A 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 14px;
    color: var(--text-gray);
}

.nav-links {
    display: flex;
    gap: 32px;
}

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

.nav-links a:hover {
    color: var(--primary);
}

/* 英雄区域 */
.hero {
    position: relative;
    padding: 180px 0 120px;
    background: linear-gradient(180deg, var(--bg-cream) 0%, var(--bg-peach) 100%);
    overflow: hidden;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.bubble {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.bubble-1 {
    width: 400px;
    height: 400px;
    background: var(--primary);
    top: -100px;
    right: -100px;
    animation: float 20s infinite ease-in-out;
}

.bubble-2 {
    width: 300px;
    height: 300px;
    background: var(--secondary);
    bottom: -50px;
    left: -50px;
    animation: float 15s infinite ease-in-out reverse;
}

.bubble-3 {
    width: 200px;
    height: 200px;
    background: var(--accent);
    top: 50%;
    left: 50%;
    animation: float 25s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(120deg); }
    66% { transform: translate(-20px, 20px) rotate(240deg); }
}

.hero .container {
    max-width: 900px;
    text-align: center;
}

.hero-content {
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-title {
    font-size: 72px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 32px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, #FF9B6A 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--text-gray);
    margin-bottom: 48px;
    line-height: 1.8;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 80px;
    justify-content: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 18px 48px;
    border-radius: 50px;
    font-size: 18px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #FF9B6A 100%);
    color: white;
    box-shadow: 0 4px 20px rgba(255, 123, 156, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(255, 123, 156, 0.4);
}

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

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

.hero-stats {
    display: flex;
    gap: 80px;
    justify-content: center;
}

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

.stat-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 16px;
    color: var(--text-gray);
    font-weight: 500;
}


.section-title {
    font-size: 42px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.section-subtitle {
    font-size: 18px;
    text-align: center;
    color: var(--text-gray);
    margin-bottom: 60px;
}

/* 用户评价 */
.testimonials {
    padding: 100px 0;
    background: var(--bg-white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.testimonial-card {
    background: white;
    padding: 32px;
    border-radius: 24px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.testimonial-rating {
    font-size: 18px;
    margin-bottom: 16px;
}

.testimonial-text {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 24px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--bg-peach);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.author-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
}

.author-role {
    font-size: 14px;
    color: var(--text-light);
}


/* 页脚 */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 24px 0;
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    opacity: 0.7;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero {
        padding: 140px 0 100px;
        min-height: 80vh;
    }
    
    .hero-title {
        font-size: 56px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero {
        padding: 120px 0 80px;
        min-height: 75vh;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .btn {
        padding: 16px 40px;
        font-size: 16px;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 40px;
    }
    
    .stat-number {
        font-size: 40px;
    }
    
    
    .section-title {
        font-size: 32px;
    }
    
}

/* 滚动动画 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}