/* Daily Researcher - Global Trends Dashboard Styles */

/* 基础样式 */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --text-color: #2c3e50;
    --text-light: #7f8c8d;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --radius: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

a {
    color: var(--secondary-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* 头部 */
header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.5rem 1rem;
    text-align: center;
}

header h1 {
    font-size: 1.8rem;
    margin-bottom: 0.3rem;
}

header p {
    font-size: 0.9rem;
    opacity: 0.9;
}

.last-updated {
    font-size: 0.8rem;
    opacity: 0.8;
    margin-top: 0.3rem;
}

/* 导航 */
nav {
    background: var(--card-bg);
    padding: 0.8rem 0.5rem;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav a {
    color: var(--text-color);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    transition: all 0.3s;
    white-space: nowrap;
}

nav a:hover {
    background: var(--bg-color);
    text-decoration: none;
}

nav a.active {
    background: var(--secondary-color);
    color: white;
}

/* 主内容 */
main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem;
}

/* 指标卡片 */
.metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.metric-card, .platform-card, .insight-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.metric-card h3, .platform-card h3, .insight-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--secondary-color);
}

/* 标签云 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: var(--secondary-color);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: transform 0.2s;
}

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

.tag.size-1 { background: #e74c3c; }
.tag.size-2 { background: #f39c12; }
.tag.size-3 { background: #27ae60; }
.tag.size-4 { background: #3498db; }
.tag.size-5 { background: #9b59b6; }

/* 图表区域 */
.charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.chart-container {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow);
    height: 300px;
    display: flex;
    flex-direction: column;
}

.chart-container h3 {
    flex-shrink: 0;
    margin-bottom: 0.5rem;
}

.chart-container canvas {
    flex: 1;
    width: 100% !important;
    height: auto !important;
    max-height: 250px;
}

/* 快速链接 */
.link-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.link-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.link-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    text-decoration: none;
}

.link-card .icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.link-card .title {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.link-card .desc {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: 0.3rem;
}

/* 平台卡片 */
.platforms {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.product-list, .tag-list, .trend-list {
    max-height: 400px;
    overflow-y: auto;
}

.product-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem;
    border-bottom: 1px solid var(--border-color);
    transition: background 0.2s;
}

.product-item:hover {
    background: var(--bg-color);
}

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

.product-rank {
    background: var(--secondary-color);
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: bold;
    margin-right: 0.8rem;
}

.product-info {
    flex: 1;
}

.product-name {
    font-weight: 500;
    margin-bottom: 0.2rem;
}

.product-meta {
    font-size: 0.85rem;
    color: var(--text-light);
}

.product-price {
    font-weight: bold;
    color: var(--success-color);
}

/* 趋势洞察 */
.insights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* 供应链区域 */
.region-section, .materials-section, .policy-section, .opportunity-section, .craft-advice {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.region-section h3, .materials-section h3, .policy-section h3, .opportunity-section h3, .craft-advice h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--accent-color);
}

/* 产区内容 */
.region-content {
    display: grid;
    gap: 1rem;
}

.region-item {
    padding: 1rem;
    background: var(--bg-color);
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
}

.region-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* 价格网格 */
.price-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.price-item {
    padding: 1rem;
    background: var(--bg-color);
    border-radius: 8px;
    text-align: center;
}

.price-name {
    font-size: 0.9rem;
    color: var(--text-light);
}

.price-value {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--success-color);
    margin: 0.3rem 0;
}

.price-change {
    font-size: 0.85rem;
}

.price-change.up { color: #e74c3c; }
.price-change.down { color: #27ae60; }

/* 政策列表 */
.policy-list {
    display: grid;
    gap: 0.8rem;
}

.policy-item {
    padding: 1rem;
    background: var(--bg-color);
    border-radius: 8px;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

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

.policy-content {
    flex: 1;
}

.policy-title {
    font-weight: 500;
    margin-bottom: 0.3rem;
}

.policy-date {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* IP网格 */
.ip-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.ip-item {
    padding: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 8px;
    text-align: center;
}

.ip-item h4 {
    margin-bottom: 0.5rem;
}

.ip-item p {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* 建议网格 */
.suggestion-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.suggestion-item {
    padding: 1rem;
    background: var(--bg-color);
    border-radius: 8px;
    border-left: 4px solid var(--warning-color);
}

.suggestion-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* 完整报告链接 */
.full-report {
    text-align: center;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: var(--radius);
}

.full-report a {
    font-size: 1.1rem;
    padding: 0.8rem 1.5rem;
    background: var(--secondary-color);
    color: white;
    border-radius: 8px;
}

.full-report a:hover {
    background: var(--primary-color);
}

/* 底部 */
footer {
    background: var(--primary-color);
    color: white;
    text-align: center;
    padding: 2rem;
    margin-top: 2rem;
}

footer p {
    opacity: 0.8;
    margin: 0.3rem 0;
}

/* 响应式 - 移动端全面优化 */
@media (max-width: 768px) {
    /* 头部优化 */
    header {
        padding: 1rem 0.8rem;
    }
    
    header h1 {
        font-size: 1.4rem;
    }
    
    header p {
        font-size: 0.85rem;
    }
    
    .last-updated {
        font-size: 0.75rem;
    }
    
    /* 导航优化 */
    nav {
        padding: 0.6rem 0.4rem;
    }
    
    nav a {
        padding: 0.35rem 0.7rem;
        font-size: 0.8rem;
    }
    
    /* 主内容 */
    main {
        padding: 0.8rem;
    }
    
    /* 所有卡片默认单列 */
    .metrics,
    .charts,
    .platforms,
    .insights,
    .region-content,
    .price-grid,
    .tag-cloud,
    .link-cards,
    .ip-grid,
    .suggestion-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    /* 卡片内边距 */
    .metric-card,
    .platform-card,
    .insight-card,
    .chart-container,
    .region-section,
    .materials-section,
    .policy-section,
    .opportunity-section,
    .craft-advice {
        padding: 1rem;
    }
    
    /* 标题优化 */
    .metric-card h3,
    .platform-card h3,
    .insight-card h3,
    .chart-container h3 {
        font-size: 1rem;
        margin-bottom: 0.8rem;
    }
    
    /* 快速链接卡片 */
    .link-card {
        padding: 1.2rem;
        flex-direction: row;
        justify-content: flex-start;
        gap: 1rem;
    }
    
    .link-card .icon {
        font-size: 1.8rem;
        margin-bottom: 0;
    }
    
    .link-card .title {
        font-size: 0.95rem;
    }
    
    .link-card .desc {
        display: none;
    }
    
    /* 产品列表优化 */
    .product-item {
        padding: 0.5rem;
        flex-wrap: nowrap;
    }
    
    .product-rank {
        width: 22px;
        height: 22px;
        font-size: 0.7rem;
        margin-right: 0.5rem;
        flex-shrink: 0;
    }
    
    .product-info {
        flex: 1;
        min-width: 0;
    }
    
    .product-name {
        font-size: 0.85rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .product-meta {
        font-size: 0.7rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .product-price {
        font-size: 0.8rem;
        margin-top: 0;
        margin-left: 0.5rem;
        white-space: nowrap;
    }
    
    /* 标签云优化 */
    .tag-cloud {
        gap: 0.4rem;
    }
    
    .tag {
        font-size: 0.7rem;
        padding: 0.2rem 0.5rem;
    }
    
    /* 价格卡片 */
    .price-item {
        padding: 0.6rem;
    }
    
    .price-name {
        font-size: 0.8rem;
    }
    
    .price-value {
        font-size: 1.1rem;
    }
    
    .price-change {
        font-size: 0.75rem;
    }
    
    /* IP卡片和建议卡片 */
    .ip-item,
    .suggestion-item {
        padding: 0.8rem;
    }
    
    .ip-item h4,
    .suggestion-item h4 {
        font-size: 0.9rem;
    }
    
    .ip-item p,
    .suggestion-item p {
        font-size: 0.8rem;
    }
    
    /* 底部 */
    footer {
        padding: 1rem 0.5rem;
    }
    
    footer p {
        font-size: 0.75rem;
    }
    
    /* 表格移动端 */
    table {
        font-size: 0.8rem;
    }
    
    th, td {
        padding: 0.5rem 0.3rem;
    }
    
    /* 滚动区域 */
    .product-list,
    .tag-list,
    .trend-list {
        max-height: 280px;
    }
    
    /* 完整报告链接 */
    .full-report {
        padding: 1rem;
    }
    
    .full-report a {
        font-size: 0.9rem;
        padding: 0.6rem 1rem;
        display: inline-block;
    }
}

/* 小屏幕进一步优化 */
@media (max-width: 480px) {
    header h1 {
        font-size: 1.2rem;
    }
    
    header p {
        font-size: 0.75rem;
    }
    
    nav a {
        padding: 0.3rem 0.6rem;
        font-size: 0.75rem;
    }
    
    main {
        padding: 0.5rem;
    }
    
    .metric-card,
    .platform-card,
    .insight-card,
    .chart-container {
        padding: 0.8rem;
        height: 250px;
        min-height: 200px;
    }
    
    .chart-container canvas {
        max-height: 180px;
    }
    
    .link-card {
        padding: 1rem;
    }
    
    .link-card .icon {
        font-size: 1.5rem;
    }
    
    .product-name {
        font-size: 0.8rem;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 3px;
}

/* 加载状态 */
.loading {
    color: var(--text-light);
    text-align: center;
    padding: 2rem;
    font-style: italic;
}

.loading::before {
    content: "⏳ ";
}

.error {
    color: #e74c3c;
    text-align: center;
    padding: 1rem;
    background: #fdf2f2;
    border-radius: 8px;
}

.error::before {
    content: "❌ ";
}

.success {
    color: #27ae60;
}

.success::before {
    content: "✅ ";
}