/**
 * 主样式文件 - 知识星球风格
 */

/* 全局样式 */
:root {
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --secondary: #5f6368;
    --success: #0f9d58;
    --danger: #db4437;
    --warning: #f4b400;
    --info: #00bcd4;
    --light: #f8f9fa;
    --dark: #202124;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
    color: #333;
    background-color: #f5f5f5;
}

/* 导航栏 */
.navbar {
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    z-index: 1000;
}

.navbar-brand {
    font-size: 1.25rem;
}

.nav-link {
    font-weight: 500;
    padding: 8px 16px !important;
    border-radius: 8px;
    transition: all 0.3s;
}

.nav-link:hover,
.nav-link.active {
    background-color: rgba(26, 115, 232, 0.1);
    color: var(--primary) !important;
}

/* 按钮样式 */
.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

.btn-outline-primary {
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline-primary:hover {
    background-color: var(--primary);
    border-color: var(--primary);
}

/* 卡片样式 */
.card {
    border: none;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

/* 标签样式 */
.badge {
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 20px;
}

/* 表单样式 */
.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(26, 115, 232, 0.25);
}

.form-control,
.form-select {
    border-radius: 8px;
    padding: 10px 15px;
}

/* 分页样式 */
.pagination {
    gap: 5px;
}

.page-link {
    border: none;
    border-radius: 8px;
    padding: 8px 14px;
    color: var(--secondary);
}

.page-link:hover {
    background-color: var(--primary);
    color: white;
}

.page-item.active .page-link {
    background-color: var(--primary);
}

/* 源码卡片 */
.source-card {
    overflow: hidden;
    border: 1px solid #eee;
}

.source-card .card-img-top {
    transition: transform 0.3s;
}

.source-card:hover .card-img-top {
    transform: scale(1.05);
}

.source-card .price {
    color: var(--danger);
    font-size: 1.25rem;
    font-weight: 700;
}

/* 分类标签 */
.category-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(26, 115, 232, 0.1);
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.85rem;
    margin: 2px;
}

.category-tag:hover,
.category-tag.active {
    background: var(--primary);
    color: white;
}

/* 用户头像 */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.avatar-lg {
    width: 80px;
    height: 80px;
}

.avatar-xl {
    width: 120px;
    height: 120px;
}

/* 评论区域 */
.comment-item {
    padding: 15px;
    border-bottom: 1px solid #f0f0f0;
}

.comment-item:last-child {
    border-bottom: none;
}

/* 代码块 */
.code-block {
    background: #1e1e1e;
    color: #d4d4d4;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Consolas', 'Monaco', monospace;
}

/* Markdown 内容 */
.markdown-body {
    line-height: 1.8;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
    margin-top: 24px;
    margin-bottom: 16px;
    font-weight: 600;
}

.markdown-body p {
    margin-bottom: 16px;
}

.markdown-body code {
    background: #f5f5f5;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}

.markdown-body pre {
    background: #1e1e1e;
    color: #d4d4d4;
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
}

.markdown-body img {
    max-width: 100%;
    border-radius: 8px;
}

.markdown-body blockquote {
    border-left: 4px solid var(--primary);
    padding: 10px 20px;
    background: #f8f9fa;
    margin: 16px 0;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(26, 115, 232, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--secondary);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

/* 搜索框 */
.search-box {
    position: relative;
}

.search-box input {
    padding-left: 40px;
    border-radius: 25px;
}

.search-box i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--secondary);
}

/* 价格样式 */
.price-current {
    color: var(--danger);
    font-size: 1.5rem;
    font-weight: 700;
}

.price-original {
    color: #999;
    text-decoration: line-through;
    font-size: 0.9rem;
}

/* 状态标签 */
.status-tag {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.status-pending { background: #fff3cd; color: #856404; }
.status-paid { background: #d4edda; color: #155724; }
.status-developing { background: #cce5ff; color: #004085; }
.status-completed { background: #d1ecf1; color: #0c5460; }
.status-cancelled { background: #f8d7da; color: #721c24; }

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .source-card .card-img-top {
        height: 150px;
    }
}

/* 动画效果 */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #bbb;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #999;
}