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

body {
    font-family: Arial, sans-serif;
    background-color: #000;
    color: #fff;
    line-height: 1.6;
}

/* 导航栏样式 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background-color: #000;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: #fff;
}

.logo .cherry {
    color: #FFD700;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-size: 1rem;
}

/* 英雄区域样式 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 5rem 5%;
    background: #000;
    position: relative;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    gap: 4rem;
}

.hero-image {
    flex: 2;
    max-width: 65%;
}

.hero-image img {
    width: 100%;
    height: auto;
    object-fit: contain;
}

.hero-text {
    flex: 1;
    text-align: center;
}

.app-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 2rem;
    border-radius: 20px;
    overflow: hidden;
}

.app-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.start-btn {
    padding: 1rem 3rem;
    font-size: 1.2rem;
    background-color: #FFD700;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    margin-top: 2rem;
    transition: transform 0.3s ease;
}

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

/* 聊天功能介绍样式 */
.chat-features {
    padding: 5rem 5%;
    text-align: center;
    background: #000;
}

.chat-features h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.chat-features p {
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto;
}

.character-gallery {
    margin: 3rem auto;
    max-width: 1200px;
    text-align: center;
}

.character-gallery img {
    max-width: 100%;
    height: auto;
}

/* AI世界介绍样式 */
.ai-world {
    padding: 5rem 5%;
    text-align: center;
    background: #000;
}

.ai-world h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: transparent;
    padding: 1rem;
    border-radius: 20px;
    text-align: center;
}

.feature-card img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: #FFD700;
    font-size: 1.2rem;
    margin-top: 1rem;
}

/* 页脚样式 */
footer {
    text-align: center;
    padding: 2rem;
    background-color: #000;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-image {
        max-width: 100%;
    }

    .character-gallery {
        height: auto;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .character-item {
        position: relative;
        left: auto !important;
        top: auto !important;
        transform: none !important;
        width: calc(50% - 1rem) !important;
        height: 280px !important;
        border-radius: 40px !important;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
}