:root {
    --primary-blue: #7C9EB2;
    --secondary-blue: #8DB1E1;
    --background: #FFFFFF;
    --text-primary: #4A4A4A;
    --text-secondary: #6C757D;
}

body {
    font-family: 'Helvetica Neue', 'Segoe UI', sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
}

.main-header {
    background: linear-gradient(135deg, rgba(124,158,178,0.95), rgba(142,177,225,0.95));
    padding: 1rem 0;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
}

.navbar {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 2rem;
    color: white;
    font-weight: 600;
    letter-spacing: 1px;
}

.slogan {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.9);
    font-weight: 400;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.nav-links a:hover {
    background: rgba(255,255,255,0.15);
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.section {
    margin: 4rem 0;
}

.section-title {
    font-size: 2.2rem;
    color: var(--primary-blue);
    text-align: center;
    margin-bottom: 2rem;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
    margin: 1.5rem 0;
}

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

/* 新增市场分析样式 */
.analysis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.analysis-item h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5rem;
}

.comparison-table th,
.comparison-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #eee;
}

/* 用户画像卡片 */
.persona-card {
    position: relative;
    overflow: hidden;
}

.persona-image {
    width: 100%;
    height: auto; /* 改为自适应高度 */
    max-height: 400px; /* 设置最大高度 */
    object-fit: contain; /* 完整显示图片 */
    border-radius: 12px;
    margin: 0 auto; /* 水平居中 */
    display: block;
}


.persona-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1.5rem 0;
}

.tag {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tag.active {
    transform: scale(1.05);
}

.moonlight { background: #FFD70033; color: #B8860B; }
.blackhole { background: #9370DB33; color: #4B0082; }
.amnesia { background: #87CEEB33; color: #2F4F4F; }

/* 使用场景卡片 */
.scenario-card {
    background: white;
}

.scenario-content {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-primary);
}

.scenario-content p {
    margin: 1.2rem 0;
    padding: 0.5rem;
    border-left: 2px solid rgba(124,158,178,0.2);
}

/* 团队成员 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.member-card {
    background: rgba(219,224,235,0.3);
    border-radius: 12px;
    padding: 1.5rem;
    transition: transform 0.3s ease;
}

.member-card:hover {
    transform: translateY(-3px);
}

.member-content {
    text-align: center;
}

.member-content img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 3px solid var(--primary-blue);
}

/* 思维导图 */
.mindmap-container {
    padding: 2rem;
    position: relative;
}

.mindmap-node {
    position: relative;
    background: var(--secondary-blue);
    color: white;
    padding: 1rem 2rem;
    border-radius: 30px;
    margin: 1rem;
    text-align: center;
    display: inline-block;
}

.root-node {
    background: var(--primary-blue);
    margin: 0 auto 3rem;
    padding: 1.5rem 3rem;
}

.mindmap-children {
    display: flex;
    justify-content: center;
    position: relative;
}

.mindmap-line {
    position: absolute;
    background: var(--primary-blue);
}

.mindmap-node.root-node .mindmap-line {
    height: 50px;
    width: 2px;
    bottom: -50px;
    left: 50%;
}

.mindmap-node:not(.root-node) .mindmap-line {
    height: 2px;
    width: 100px;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        flex-direction: column;
        align-items: center;
    }

    .brand {
        flex-direction: column;
        text-align: center;
    }

    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .mindmap-node {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .mindmap-children {
        flex-direction: column;
        align-items: center;
    }
    
    .mindmap-node:not(.root-node) .mindmap-line {
        width: 2px;
        height: 40px;
        top: -40px;
        left: 50%;
    }
}

@media (min-width: 1024px) {
    .persona-image {
        max-width: 80%; /* 大屏幕限制宽度 */
        border-radius: 16px;
    }
}

@media (max-width: 768px) {
    .persona-image {
        max-height: 300px; /* 移动端适当降低最大高度 */
    }
}


/* 图标样式 */
i[class^="fas"] {
    margin-right: 0.5rem;
}

/* 信息架构图片容器 */
.info-arch-container {
    padding: 1.5rem;
    background: rgba(219,224,235,0.15);
    border-radius: 8px;
    margin-top: 1.5rem;
    overflow-x: auto; /* 允许横向滚动 */
}

.info-arch-image {
    width: 100%;
    height: auto;
    max-width: 900px; /* 控制最大显示宽度 */
    display: block;
    margin: 0 auto;
    border-radius: 6px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

/* 鼠标悬停轻微微缩放 */
.info-arch-image:hover {
    transform: scale(1.02);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .info-arch-container {
        padding: 1rem;
        margin-left: -1rem;
        margin-right: -1rem;
    }
    
    .info-arch-image {
        border-radius: 4px;
        min-width: 600px; /* 保证最小可读宽度 */
    }
}