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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f8f9fa;
    min-height: 100vh;
    color: #333;
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand a {
    font-size: 1.3rem;
    font-weight: 600;
    color: #667eea;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 24px;
}

.nav-links a {
    color: #666;
    text-decoration: none;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: #667eea;
}

/* 主容器 */
.selection-container {
    max-width: 1000px;
    margin: 60px auto;
    padding: 40px;
}

.selection-header {
    text-align: center;
    margin-bottom: 50px;
}

.selection-header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #202124;
    font-weight: 600;
}

.subtitle {
    font-size: 1.1rem;
    color: #5f6368;
}

/* 模板类型卡片容器 */
.template-types {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

/* 模板类型卡片 */
.template-type-card {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s, box-shadow 0.3s;
}

.template-type-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.card-icon {
    font-size: 2rem;
}

.card-header h2 {
    font-size: 1.5rem;
    margin: 0;
    color: #1a1a1a;
}

.card-desc {
    color: #666;
    margin-bottom: 24px;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* 生成选项 */
.generation-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.option-btn {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
    font-family: inherit;
}

.option-btn:hover {
    background: #e7f3ff;
    border-color: #4a90e2;
    transform: translateX(4px);
}

.option-btn:active {
    transform: translateX(2px);
}

.option-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
}

.option-content {
    flex: 1;
}

.option-content h3 {
    margin: 0 0 4px 0;
    font-size: 1.1rem;
    color: #1a1a1a;
    font-weight: 600;
}

.option-content p {
    margin: 0;
    font-size: 0.9rem;
    color: #666;
}

.arrow {
    font-size: 1.5rem;
    color: #4a90e2;
    flex-shrink: 0;
    transition: transform 0.2s;
}

.option-btn:hover .arrow {
    transform: translateX(4px);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .selection-container {
        padding: 20px;
        margin: 30px auto;
    }

    .selection-header h1 {
        font-size: 2rem;
    }

    .template-types {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .template-type-card {
        padding: 20px;
    }

    .card-header h2 {
        font-size: 1.3rem;
    }

    .option-btn {
        padding: 16px;
    }

    .option-content h3 {
        font-size: 1rem;
    }

    .option-content p {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .selection-header h1 {
        font-size: 1.6rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .card-icon {
        font-size: 1.5rem;
    }

    .option-icon {
        font-size: 1.5rem;
    }
}