/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', 'Noto Sans JP', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    -webkit-text-size-adjust: 100%;
    overflow-x: hidden;
}

/* 移动端自适配增强 */
img, video {
    max-width: 100%;
    height: auto;
    display: block;
}

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

/* 语言切换器 */
 .language-switcher {
     position: fixed;
     top: 90px;
     right: 20px;
     z-index: 1001;
     background: rgba(255, 255, 255, 0.95);
     backdrop-filter: blur(10px);
     border-radius: 25px;
     padding: 5px;
     box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
     display: flex;
     gap: 5px;
 }

.lang-btn {
    background: transparent;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #666;
}

.lang-btn.active {
    background: #FCA801;
    color: white;
    box-shadow: 0 2px 10px rgba(255, 107, 53, 0.3);
}

.lang-btn:hover:not(.active) {
    background: rgba(255, 107, 53, 0.1);
    color: #FF6B35;
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 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;
    gap: 12px;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: #FCA801;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #FCA801;
}

/* 英雄区域 */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #EFE2A1 0%, #F0F8F0 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;
    color: #F4A300;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #f5b834;
    margin-bottom: 40px;
    line-height: 1.6;
}

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

/* 移动端专用图标 */
.hero-mobile-icon {
    display: none;
    justify-content: center;
    margin: 30px 0;
}

.mobile-app-icon {
    width: 200px;
    height: 200px;
    border-radius: 40px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.mobile-app-icon:hover {
    transform: scale(1.05);
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: #FCA801;
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.btn-primary:hover {
    background: #FCA801;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #FCA801;
    border: 2px solid #FCA801;
}

.btn-secondary:hover {
    background: #FCA801;
    color: white;
}

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

.app-icon {
    width: 300px;
    height: 300px;
    border-radius: 60px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.app-icon:hover {
    transform: scale(1.05);
}

/* 功能特色 */
.features {
    padding: 80px 0;
    background: #fff;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 60px;
}

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

.feature-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #f0f0f0;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

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

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

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

/* AI向导区域 */
.ai-guides {
    padding: 80px 0;
    background: linear-gradient(135deg, #f6fffb 0%, #d3f2ec 100%);
}

.guides-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.guide-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 25px;
    text-align: center;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 2px solid transparent;
}

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

.guide-card.nova {
    border-color: #4FC3F7;
}

.guide-card.sola {
    border-color: #FFB74D;
}

.guide-avatar {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
}

.guide-avatar img {
    width: 256px;
    height: 256px;
    object-fit: cover;
    border-radius: 50%;
}


.guide-card h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
}

.guide-role {
    font-size: 1.1rem;
    color: #FCA801;
    font-weight: 600;
    margin-bottom: 20px;
}

.guide-desc {
    color: #666;
    line-height: 1.6;
    font-size: 1rem;
}

/* 下载区域 */
.download {
    padding: 80px 0;
    background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
}

.download-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.download-info h3 {
    font-size: 2rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
}

.download-info p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 30px;
}

.app-store-info {
    background: #fff;
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.app-id, .domain {
    margin-bottom: 10px;
    color: #555;
}

.btn-app-store {
    display: inline-block;
    transition: transform 0.3s ease;
}

.btn-app-store:hover {
    transform: scale(1.05);
}

.btn-app-store img {
    height: 60px;
}

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

.download-app-icon {
    width: 250px;
    height: 250px;
    border-radius: 50px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

/* 关于我们 */
.about {
    padding: 80px 0;
    background: #fff;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background: linear-gradient(135deg, #E8F5E8 0%, #C8E6C9 100%);
    border-radius: 20px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2E7D32;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1rem;
    color: #666;
    font-weight: 500;
}

/* 页脚 */
.footer {
    background: #333;
    color: #fff;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo-img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.footer-logo span {
    font-size: 20px;
    font-weight: 600;
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #FCA801;
}

.footer-section a {
    display: block;
    color: #ccc;
    text-decoration: none;
    margin-bottom: 10px;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #FCA801;
}

.footer-section p {
    color: #ccc;
    margin-bottom: 10px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #555;
    color: #999;
}

/* 支持与社区 */
.support {
    padding: 80px 0;
    background: linear-gradient(135deg, #fef9e7 0%, #fffaf0 100%);
}

.support-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.support-card {
    background: #fff;
    padding: 32px 28px;
    border-radius: 18px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    border: 1px solid #f1f1f1;
}

.support-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #FCA801;
}

.support-card p {
    color: #666;
    line-height: 1.7;
    margin-bottom: 18px;
}

.support .btn.btn-secondary {
    display: inline-block;
}

.footer .icp {
    margin-top: 8px;
    color: #bbb;
    font-size: 0.95rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .language-switcher {
        top: 10px;
        right: 10px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-mobile-icon {
        display: flex;
    }
    
    .hero-image {
        display: none;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .app-icon {
        width: 200px;
        height: 200px;
    }
    
    .download-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .nav-links {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .guides-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .language-switcher {
        position: relative;
        top: auto;
        right: auto;
        margin: 20px auto;
        width: fit-content;
    }
}