/* 
 * North American Market - Sections CSS
 * 定义各页面区块的特定样式
 */

/* 导入变量和基础样式 */
@import url('/css/north-america/variables.css');
@import url('/css/north-america/base.css');

/* =================== Banner Section =================== */
.na-banner {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    max-height: 800px;
    overflow: hidden;
    background: var(--na-gradient-blue);
    color: white;
}

.na-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://source.unsplash.com/1600x900/?usa,skyline');
    background-size: cover;
    background-position: center;
    opacity: 0.3;
    z-index: 1;
}

.na-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(60, 59, 110, 0.9), rgba(178, 34, 52, 0.7));
    mix-blend-mode: multiply;
    z-index: 2;
}

.na-banner-content {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 70%;
    text-align: center;
    padding: 2rem;
    z-index: 3;
}

.na-banner-title {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    animation: naFadeIn 1s ease, naSlideUp 1s ease;
}

.na-banner-subtitle {
    font-size: 1.5rem;
    max-width: 800px;
    margin: 0 auto 2.5rem;
    opacity: 0.9;
    animation: naFadeIn 1s ease 0.2s forwards, naSlideUp 1s ease 0.2s forwards;
    animation-fill-mode: both;
}

.na-banner-actions {
    display: flex;
    gap: 1rem;
    animation: naFadeIn 1s ease 0.4s forwards, naZoomIn 1s ease 0.4s forwards;
    animation-fill-mode: both;
}

.na-btn-outline {
    color: white;
    background-color: transparent;
    border: 2px solid white;
}

.na-btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.na-banner-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 2;
}

.na-banner-shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: naFloat 10s infinite ease-in-out;
}

.na-banner-shape:nth-child(1) {
    width: 200px;
    height: 200px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.na-banner-shape:nth-child(2) {
    width: 300px;
    height: 300px;
    top: 60%;
    left: 5%;
    animation-delay: 1s;
}

.na-banner-shape:nth-child(3) {
    width: 150px;
    height: 150px;
    top: 20%;
    right: 10%;
    animation-delay: 2s;
}

.na-banner-shape:nth-child(4) {
    width: 250px;
    height: 250px;
    top: 70%;
    right: 5%;
    animation-delay: 3s;
}

.na-banner-shape:nth-child(5) {
    width: 180px;
    height: 180px;
    top: 40%;
    left: 30%;
    animation-delay: 2.5s;
}

.na-banner-shape:nth-child(6) {
    width: 220px;
    height: 220px;
    top: 30%;
    right: 25%;
    animation-delay: 1.5s;
}

@keyframes naFloat {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-20px) scale(1.05);
    }
}

/* Banner 数据展示区域 */
.na-banner-data-showcase {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    padding: 2rem 0;
    z-index: 4;
}

.na-showcase-title {
    text-align: center;
    color: white;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.na-banner-data-cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin: 0 auto;
    max-width: 1200px;
    padding: 0 1rem;
}

.na-data-card {
    flex: 1;
    min-width: 180px;
    max-width: 220px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--na-radius);
    padding: 1.25rem;
    text-align: center;
    transition: var(--na-transition);
    position: relative;
    overflow: hidden;
}

.na-data-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.na-data-card.featured {
    background: rgba(var(--na-secondary-rgb), 0.3);
    border: 1px solid rgba(var(--na-secondary-rgb), 0.5);
}

.na-data-card-icon {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
    color: white;
    opacity: 0.9;
}

.na-data-value-container {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 0.25rem;
}

.na-data-card-value {
    font-size: 2.25rem;
    font-weight: 700;
    color: white;
}

.na-data-suffix {
    font-size: 1.25rem;
    margin-left: 0.25rem;
    color: white;
    opacity: 0.8;
}

.na-data-card-label {
    font-size: 0.875rem;
    color: white;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.na-data-trend {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 50px;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.na-data-trend.up {
    background: rgba(40, 167, 69, 0.3);
    color: #98FB98;
}

.na-data-trend.down {
    background: rgba(220, 53, 69, 0.3);
    color: #FFA07A;
}

/* 小横幅高亮 */
.na-banner-highlights {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-top: 1.5rem;
}

.na-highlight {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.na-highlight-icon {
    color: var(--na-secondary);
}

.na-highlight-text {
    color: white;
    font-size: 0.9rem;
}

/* =================== Market Overview Section =================== */
.na-overview {
    padding: 8rem 0 4rem;
    background-color: var(--na-bg);
}

.na-overview-header {
    text-align: center;
    margin-bottom: 4rem;
}

.na-overview-title {
    color: var(--na-primary);
    margin-bottom: 1rem;
}

.na-title-underline {
    width: 100px;
    height: 4px;
    margin: 0 auto 1.5rem;
    position: relative;
    background: rgba(60, 59, 110, 0.3);
}

.na-title-underline span {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 50px;
    background: var(--na-secondary);
}

.na-overview-subtitle {
    font-size: 1.25rem;
    color: var(--na-light-text);
    max-width: 800px;
    margin: 0 auto;
}

/* 市场指标仪表板 */
.na-metrics-dashboard {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.na-metric-card {
    flex: 1;
    min-width: 280px;
    max-width: 350px;
    display: flex;
    align-items: center;
    background: white;
    box-shadow: var(--na-shadow);
    border-radius: var(--na-radius);
    overflow: hidden;
    transition: var(--na-transition);
}

.na-metric-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--na-shadow-lg);
}

.na-metric-icon {
    flex-shrink: 0;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
}

.na-metric-content {
    flex: 1;
    padding: 1.25rem;
}

.na-metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--na-dark);
    margin-bottom: 0.25rem;
}

.na-metric-label {
    font-size: 0.875rem;
    color: var(--na-light-text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

.na-metric-context {
    font-size: 0.8rem;
    color: var(--na-secondary);
    font-style: italic;
}

.na-overview-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
    gap: 3rem;
}

.na-overview-text {
    flex: 1;
    min-width: 300px;
}

.na-overview-section {
    margin-bottom: 2rem;
}

.na-overview-section-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--na-primary);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.na-advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.na-advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.na-advantage-icon {
    flex-shrink: 0;
    font-size: 1.25rem;
    color: var(--na-primary);
    margin-top: 0.25rem;
}

.na-advantage-text h4 {
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

.na-advantage-text p {
    color: var(--na-light-text);
    font-size: 0.9rem;
}

/* 图表区域 */
.na-overview-visual {
    flex: 1;
    min-width: 300px;
    background: var(--na-light-bg);
    border-radius: var(--na-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--na-shadow);
}

.na-overview-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--na-border);
    padding-bottom: 0.5rem;
}

.na-overview-tab {
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: var(--na-transition);
    border-radius: var(--na-radius-sm);
    font-weight: 600;
    color: var(--na-light-text);
}

.na-overview-tab:hover {
    background-color: rgba(60, 59, 110, 0.1);
}

.na-overview-tab.active {
    background-color: var(--na-primary);
    color: white;
}

.na-chart-container {
    height: 300px;
    display: none;
    position: relative;
}

.na-chart-container.active {
    display: block;
}

.na-chart-caption {
    text-align: center;
    font-size: 0.8rem;
    color: var(--na-light-text);
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

/* CTA区域 */
.na-overview-cta {
    margin-top: 4rem;
    text-align: center;
    background: var(--na-light-bg);
    padding: 3rem;
    border-radius: var(--na-radius-lg);
}

.na-overview-cta h3 {
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
    color: var(--na-primary);
}

@media (max-width: 768px) {
    .na-banner-title {
        font-size: 2.5rem;
    }
    
    .na-banner-subtitle {
        font-size: 1.125rem;
    }
    
    .na-banner-actions {
        flex-direction: column;
    }
    
    .na-banner-data-showcase {
        position: relative;
        padding: 2rem 1rem;
    }
    
    .na-data-card {
        min-width: 140px;
    }
    
    .na-metric-card {
        flex-direction: column;
        text-align: center;
    }
    
    .na-metric-icon {
        width: 100%;
        height: 60px;
    }
    
    .na-overview-content {
        flex-direction: column;
    }
    
    .na-advantage-grid {
        grid-template-columns: 1fr;
    }
}

/* =================== Market Difference Section =================== */
.na-market-difference {
    padding: 4rem 0;
    background-color: var(--na-light-bg);
    position: relative;
    overflow: hidden;
}

.na-market-difference::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(var(--na-primary-rgb), 0.05) 0%, rgba(var(--na-primary-rgb), 0) 70%);
    border-radius: 50%;
    z-index: 0;
}

.na-market-difference::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(var(--na-secondary-rgb), 0.05) 0%, rgba(var(--na-secondary-rgb), 0) 70%);
    border-radius: 50%;
    z-index: 0;
}

.na-market-difference-header {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    z-index: 1;
}

.na-text-zh {
    display: block;
    font-size: 0.5em;
    font-weight: normal;
    color: var(--na-secondary);
    margin-top: 0.5rem;
    letter-spacing: 1px;
}

.na-market-difference-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
}

.na-market-tab {
    padding: 0.75rem 1.5rem;
    border-radius: var(--na-radius);
    background-color: var(--na-bg);
    color: var(--na-text);
    cursor: pointer;
    transition: var(--na-transition);
    box-shadow: var(--na-shadow-sm);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.na-market-tab::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, rgba(var(--na-primary-rgb), 0.1), rgba(var(--na-secondary-rgb), 0.1));
    transition: var(--na-transition);
    z-index: -1;
}

.na-market-tab:hover::before {
    width: 100%;
}

.na-market-tab.active {
    background-color: var(--na-primary);
    color: white;
    box-shadow: var(--na-shadow);
    transform: translateY(-3px);
}

.na-market-tab:hover:not(.active) {
    border-color: var(--na-border);
    transform: translateY(-2px);
}

.na-market-content {
    display: none;
    animation: naFadeIn 0.5s ease;
    position: relative;
    z-index: 1;
}

.na-market-content.active {
    display: block;
}

.na-market-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
    gap: 2rem;
}

.na-market-card {
    background-color: var(--na-bg);
    border-radius: var(--na-radius-lg);
    box-shadow: var(--na-shadow);
    overflow: hidden;
    transition: var(--na-transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid transparent;
    position: relative;
}

.na-market-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--na-shadow-lg);
    border-color: rgba(var(--na-primary-rgb), 0.1);
}

.na-market-card-header {
    height: 120px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.na-bg-us {
    background: linear-gradient(135deg, #3C3B6E 0%, #0A3161 100%);
}

.na-bg-canada {
    background: linear-gradient(135deg, #FF0000 0%, #B22234 100%);
}

.na-market-card-icon {
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
    position: relative;
    z-index: 1;
}

.na-market-card-icon::after {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: naPulse 2s infinite ease-in-out;
}

@keyframes naPulse {
    0% {
        transform: scale(0.95);
        opacity: 1;
    }
    70% {
        transform: scale(1.1);
        opacity: 0;
    }
    100% {
        transform: scale(0.95);
        opacity: 0;
    }
}

.na-market-card-body {
    padding: 1.75rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.na-market-card-title {
    margin-bottom: 1rem;
    color: var(--na-primary);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.na-market-card-text {
    color: var(--na-light-text);
    margin-bottom: 1.5rem;
    flex: 1;
}

.na-market-stats {
    display: flex;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--na-border);
}

.na-market-stat {
    flex: 1;
    text-align: center;
}

.na-market-stat:not(:last-child) {
    border-right: 1px solid var(--na-border);
}

.na-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--na-primary);
    margin-bottom: 0.25rem;
}

.na-stat-label {
    font-size: 0.75rem;
    color: var(--na-light-text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Key Differences Comparison Table */
.na-comparison-container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--na-bg);
    border-radius: var(--na-radius-lg);
    box-shadow: var(--na-shadow);
    overflow: hidden;
}

.na-comparison-header {
    display: flex;
    background: var(--na-light-bg);
}

.na-comparison-country, 
.na-comparison-category {
    flex: 1;
    padding: 1.25rem;
    text-align: center;
    position: relative;
}

.na-comparison-country h3,
.na-comparison-category h3 {
    font-size: 1.25rem;
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.na-flag-icon {
    width: 30px;
    height: 20px;
    margin-bottom: 0.75rem;
    position: relative;
    box-shadow: var(--na-shadow-sm);
}

.us-flag {
    background: url('https://upload.wikimedia.org/wikipedia/en/thumb/a/a4/Flag_of_the_United_States.svg/320px-Flag_of_the_United_States.svg.png') center/cover;
}

.canada-flag {
    background: url('https://upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Flag_of_Canada_%28Pantone%29.svg/320px-Flag_of_Canada_%28Pantone%29.svg.png') center/cover;
}

.na-comparison-row {
    display: flex;
    border-bottom: 1px solid var(--na-border);
}

.na-comparison-row:last-child {
    border-bottom: none;
}

.na-comparison-cell,
.na-comparison-label {
    flex: 1;
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
}

.na-comparison-label {
    background-color: rgba(var(--na-primary-rgb), 0.05);
    justify-content: center;
    font-weight: 600;
    color: var(--na-primary);
}

.na-comparison-cell {
    justify-content: center;
    transition: var(--na-transition);
}

.na-comparison-cell:first-child {
    color: var(--na-primary);
}

.na-comparison-cell:last-child {
    color: var(--na-secondary);
}

.na-comparison-row:hover .na-comparison-cell {
    background-color: rgba(var(--na-primary-rgb), 0.02);
}

/* Cross-Market Strategy */
.na-strategy-container {
    display: flex;
    flex-wrap: wrap;
    gap: 3rem;
    align-items: center;
}

.na-strategy-visual {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: center;
}

.na-strategy-diagram {
    position: relative;
    width: 350px;
    height: 350px;
}

.na-strategy-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--na-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    font-size: 0.9rem;
    box-shadow: var(--na-shadow);
    z-index: 2;
}

.na-strategy-icon {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.na-strategy-segments {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.na-strategy-segment {
    position: absolute;
    width: 90px;
    text-align: center;
}

.na-strategy-segment:nth-child(1) {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}

.na-strategy-segment:nth-child(2) {
    top: 50%;
    right: 0;
    transform: translateY(-50%);
}

.na-strategy-segment:nth-child(3) {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.na-strategy-segment:nth-child(4) {
    top: 50%;
    left: 0;
    transform: translateY(-50%);
}

.na-segment-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--na-light-bg);
    color: var(--na-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin: 0 auto 0.75rem;
    box-shadow: var(--na-shadow);
    position: relative;
    transition: var(--na-transition);
}

.na-strategy-segment:hover .na-segment-icon {
    background: var(--na-primary);
    color: white;
    transform: scale(1.1);
}

.na-segment-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    width: 75px;
    height: 2px;
    background: rgba(var(--na-primary-rgb), 0.2);
    z-index: -1;
}

.na-strategy-segment:nth-child(1) .na-segment-icon::before {
    left: 50%;
    top: auto;
    bottom: -75px;
    transform: translateX(-50%) rotate(90deg);
}

.na-strategy-segment:nth-child(2) .na-segment-icon::before {
    right: 50px;
    transform: translateY(-50%);
}

.na-strategy-segment:nth-child(3) .na-segment-icon::before {
    left: 50%;
    top: -75px;
    transform: translateX(-50%) rotate(90deg);
}

.na-strategy-segment:nth-child(4) .na-segment-icon::before {
    left: 50px;
    transform: translateY(-50%);
}

.na-strategy-segment p {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--na-dark);
}

.na-strategy-points {
    flex: 1;
    min-width: 300px;
}

.na-strategy-point {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    padding: 1.25rem;
    background: var(--na-bg);
    border-radius: var(--na-radius);
    box-shadow: var(--na-shadow);
    transition: var(--na-transition);
    border-left: 3px solid var(--na-primary);
}

.na-strategy-point:hover {
    transform: translateX(5px);
    box-shadow: var(--na-shadow-lg);
}

.na-point-icon {
    flex-shrink: 0;
    color: var(--na-primary);
    font-size: 1.25rem;
    margin-right: 1rem;
    margin-top: 0.25rem;
}

.na-point-content h3 {
    margin-bottom: 0.5rem;
    font-size: 1.15rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.na-point-content p {
    color: var(--na-light-text);
    font-size: 0.95rem;
}

@media (max-width: 768px) {
    .na-market-grid {
        grid-template-columns: 1fr;
    }
    
    .na-strategy-container {
        flex-direction: column;
    }
    
    .na-strategy-visual {
        order: 1;
    }
    
    .na-strategy-points {
        order: 2;
    }
    
    .na-comparison-row {
        flex-direction: column;
        border-bottom: none;
        margin-bottom: 1.5rem;
    }
    
    .na-comparison-cell {
        border-bottom: 1px solid var(--na-border);
    }
}

/* =================== Consumer Traits Section =================== */
.na-consumer-traits {
    padding: 4rem 0;
    background-color: var(--na-bg);
    position: relative;
    overflow: hidden;
}

.na-consumer-bg-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.na-consumer-bg-circle {
    position: absolute;
    top: -150px;
    right: -150px;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--na-primary-rgb), 0.03) 0%, rgba(var(--na-primary-rgb), 0) 70%);
}

.na-consumer-bg-dots {
    position: absolute;
    bottom: 10%;
    left: 5%;
    width: 200px;
    height: 200px;
    background-image: radial-gradient(rgba(var(--na-secondary-rgb), 0.2) 1px, transparent 1px);
    background-size: 16px 16px;
    opacity: 0.3;
}

.na-consumer-bg-line {
    position: absolute;
    top: 30%;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, 
        rgba(var(--na-primary-rgb), 0) 0%, 
        rgba(var(--na-primary-rgb), 0.1) 25%, 
        rgba(var(--na-primary-rgb), 0.1) 75%, 
        rgba(var(--na-primary-rgb), 0) 100%);
}

.na-traits-header {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.na-traits-visualization {
    position: relative;
    z-index: 1;
    margin-bottom: 4rem;
}

.na-traits-chart-toggle {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.na-chart-toggle-btn {
    padding: 0.625rem 1.25rem;
    background: var(--na-light-bg);
    border: 1px solid var(--na-border);
    border-radius: 50px;
    color: var(--na-light-text);
    font-weight: 600;
    cursor: pointer;
    transition: var(--na-transition);
}

.na-chart-toggle-btn:hover {
    background: #EAECEF;
    transform: translateY(-2px);
}

.na-chart-toggle-btn.active {
    background: var(--na-primary);
    color: white;
    border-color: var(--na-primary);
    box-shadow: var(--na-shadow);
}

.na-traits-chart-container {
    position: relative;
    height: 400px;
    margin: 0 auto;
    max-width: 700px;
    background: var(--na-light-bg);
    border-radius: var(--na-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--na-shadow);
}

.na-traits-insights {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.na-trait-card {
    background-color: var(--na-light-bg);
    border-radius: var(--na-radius-lg);
    box-shadow: var(--na-shadow);
    overflow: hidden;
    transition: var(--na-transition);
    display: flex;
    position: relative;
    border-top: 4px solid transparent;
}

.na-trait-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--na-shadow-lg);
    border-top-color: var(--na-primary);
}

.na-trait-card:nth-child(even):hover {
    border-top-color: var(--na-secondary);
}

.na-trait-icon {
    flex-shrink: 0;
    width: 80px;
    padding: 1.5rem 0 0 1.5rem;
    font-size: 2rem;
    color: var(--na-primary);
    display: flex;
    justify-content: center;
}

.na-trait-content {
    flex: 1;
    padding: 1.5rem;
}

.na-trait-title {
    margin-bottom: 0.75rem;
    color: var(--na-primary);
    font-size: 1.25rem;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.na-trait-title .na-text-zh {
    font-size: 0.7em;
    margin-top: 0.25rem;
}

.na-trait-text {
    color: var(--na-light-text);
    font-size: 0.925rem;
    margin-bottom: 1.25rem;
    line-height: 1.6;
}

.na-trait-stat {
    padding-top: 0.75rem;
    border-top: 1px solid var(--na-border);
}

.na-trait-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--na-primary);
    margin-bottom: 0.25rem;
}

.na-trait-card:nth-child(even) .na-trait-stat-value {
    color: var(--na-secondary);
}

.na-trait-stat-label {
    font-size: 0.75rem;
    color: var(--na-light-text);
}

/* 区域差异面板 */
.na-regional-differences {
    margin-top: 5rem;
    background-color: var(--na-light-bg);
    padding: 3rem;
    border-radius: var(--na-radius-lg);
    position: relative;
    z-index: 1;
    text-align: center;
}

.na-h3 {
    margin-bottom: 2rem;
    color: var(--na-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.na-region-slider {
    position: relative;
    max-width: 750px;
    margin: 0 auto 1.5rem;
    overflow: hidden;
    min-height: 150px;
}

.na-region-slide {
    position: absolute;
    width: 100%;
    padding: 1.5rem;
    background: white;
    border-radius: var(--na-radius);
    box-shadow: var(--na-shadow);
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.5s ease;
    text-align: left;
}

.na-region-slide.active {
    opacity: 1;
    transform: translateX(0);
}

.na-region-slide h4 {
    margin-bottom: 0.75rem;
    color: var(--na-primary);
    font-size: 1.25rem;
}

.na-region-slide p {
    color: var(--na-light-text);
    line-height: 1.6;
}

.na-region-indicators {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
}

.na-region-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--na-border);
    cursor: pointer;
    transition: var(--na-transition);
}

.na-region-indicator.active {
    background-color: var(--na-primary);
    transform: scale(1.2);
}

.na-region-indicator:hover {
    background-color: var(--na-light-text);
}

@media (max-width: 768px) {
    .na-trait-card {
        flex-direction: column;
    }
    
    .na-trait-icon {
        width: 100%;
        padding: 1.5rem 0;
        text-align: center;
    }
    
    .na-traits-chart-toggle {
        flex-wrap: wrap;
    }
}

/* =================== Opportunities Section =================== */
.na-opportunities {
    padding: 4rem 0;
    background-color: var(--na-light-bg);
}

.na-opportunities-header {
    text-align: center;
    margin-bottom: 4rem;
}

.na-opportunities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.na-opportunity-card {
    background-color: var(--na-bg);
    border-radius: var(--na-radius);
    box-shadow: var(--na-shadow);
    overflow: hidden;
    height: 100%;
    transition: var(--na-transition);
}

.na-opportunity-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--na-shadow-lg);
}

.na-opportunity-banner {
    height: 120px;
    background: var(--na-gradient-blue);
    position: relative;
    overflow: hidden;
}

.na-opportunity-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://source.unsplash.com/800x400/?business,opportunity');
    background-size: cover;
    background-position: center;
    opacity: 0.3;
}

.na-opportunity-icon {
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--na-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--na-shadow);
}

.na-opportunity-body {
    padding: 2rem 1.5rem 1.5rem;
    text-align: center;
}

.na-opportunity-title {
    margin: 0.5rem 0 1rem;
}

.na-opportunity-text {
    color: var(--na-light-text);
    margin-bottom: 1.5rem;
}

.na-opportunity-stats {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--na-border);
    display: flex;
    justify-content: space-around;
}

.na-opportunity-stat {
    text-align: center;
}

.na-opportunity-stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--na-primary);
}

.na-opportunity-stat-label {
    font-size: 0.75rem;
    color: var(--na-light-text);
    text-transform: uppercase;
}

/* =================== Challenges Section =================== */
.na-challenges {
    padding: 4rem 0;
    background-color: var(--na-bg);
}

.na-challenges-header {
    text-align: center;
    margin-bottom: 4rem;
}

.na-challenges-row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -1rem;
}

.na-challenge-column {
    flex: 1;
    min-width: 300px;
    padding: 0 1rem;
    margin-bottom: 2rem;
}

.na-challenge-card {
    background-color: var(--na-light-bg);
    border-radius: var(--na-radius);
    padding: 2rem;
    height: 100%;
    transition: var(--na-transition);
}

.na-challenge-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--na-shadow);
}

.na-challenge-icon {
    font-size: 2.5rem;
    color: var(--na-secondary);
    margin-bottom: 1rem;
}

.na-challenge-title {
    margin-bottom: 1rem;
    color: var(--na-dark);
}

.na-challenge-text {
    color: var(--na-light-text);
    margin-bottom: 1.5rem;
}

.na-challenge-solution {
    padding-top: 1rem;
    border-top: 1px solid var(--na-border);
}

.na-challenge-solution-title {
    font-size: 1rem;
    color: var(--na-primary);
    margin-bottom: 0.5rem;
}

/* =================== Solutions Section =================== */
.na-solutions {
    padding: 4rem 0;
    background-color: var(--na-light-bg);
}

.na-solutions-header {
    text-align: center;
    margin-bottom: 4rem;
}

.na-solutions-wrapper {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 3rem;
    margin: 0 auto;
    max-width: 1200px;
}

.na-solution-card {
    flex: 1;
    min-width: 300px;
    max-width: 400px;
    background-color: var(--na-bg);
    border-radius: var(--na-radius-lg);
    box-shadow: var(--na-shadow);
    overflow: hidden;
    transition: var(--na-transition);
}

.na-solution-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--na-shadow-lg);
}

.na-solution-header {
    background: var(--na-gradient-blue);
    color: white;
    padding: 2rem;
    text-align: center;
    position: relative;
}

.na-solution-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.na-solution-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.na-solution-subtitle {
    font-size: 0.875rem;
    opacity: 0.8;
}

.na-solution-body {
    padding: 2rem;
}

.na-solution-features {
    margin-bottom: 2rem;
}

.na-solution-feature {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.na-solution-feature-icon {
    color: var(--na-primary);
    margin-right: 0.75rem;
    transform: translateY(5px);
}

.na-solution-feature-text {
    flex: 1;
}

.na-solution-action {
    text-align: center;
}

/* =================== Strategies Section =================== */
.na-strategies {
    padding: 4rem 0;
    background-color: var(--na-bg);
}

.na-strategies-header {
    text-align: center;
    margin-bottom: 4rem;
}

.na-strategies-container {
    max-width: 900px;
    margin: 0 auto;
}

.na-strategy-accordion {
    margin-bottom: 1.5rem;
    border: 1px solid var(--na-border);
    border-radius: var(--na-radius);
    overflow: hidden;
}

.na-strategy-header {
    padding: 1.25rem 1.5rem;
    background-color: var(--na-light-bg);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--na-transition);
}

.na-strategy-header:hover {
    background-color: #E9ECEF;
}

.na-strategy-header.active {
    background-color: var(--na-primary);
    color: white;
}

.na-strategy-icon {
    transition: var(--na-transition);
}

.na-strategy-header.active .na-strategy-icon {
    transform: rotate(180deg);
}

.na-strategy-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.na-strategy-content-inner {
    padding: 1.5rem;
    border-top: 1px solid var(--na-border);
}

.na-strategy-points {
    margin-top: 1.5rem;
}

.na-strategy-point {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.na-strategy-point-marker {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--na-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    font-size: 0.75rem;
}

.na-strategy-cta {
    text-align: center;
    margin-top: 3rem;
}

/* =================== Analytics Section =================== */
.na-analytics {
    padding: 4rem 0;
    background-color: var(--na-light-bg);
}

.na-analytics-header {
    text-align: center;
    margin-bottom: 4rem;
}

.na-analytics-tabs {
    display: flex;
    justify-content: center;
    border-bottom: 1px solid var(--na-border);
    margin-bottom: 2rem;
    overflow-x: auto;
}

.na-analytics-tab {
    padding: 0.75rem 1.5rem;
    margin: 0 0.5rem;
    cursor: pointer;
    position: relative;
    color: var(--na-light-text);
    transition: var(--na-transition);
}

.na-analytics-tab::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--na-primary);
    transform: scaleX(0);
    transition: var(--na-transition);
}

.na-analytics-tab.active {
    color: var(--na-primary);
}

.na-analytics-tab.active::after {
    transform: scaleX(1);
}

.na-analytics-content {
    display: none;
    animation: naFadeIn 0.5s ease;
}

.na-analytics-content.active {
    display: block;
}

.na-chart-container {
    height: 400px;
    margin-bottom: 2rem;
}

.na-analytics-insights {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.na-insight-card {
    background-color: var(--na-bg);
    border-radius: var(--na-radius);
    padding: 1.5rem;
    transition: var(--na-transition);
}

.na-insight-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--na-shadow);
}

.na-insight-title {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.na-insight-icon {
    margin-right: 0.75rem;
    color: var(--na-primary);
}

.na-insight-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--na-dark);
}

.na-insight-value.up {
    color: var(--na-success);
}

.na-insight-value.down {
    color: var(--na-danger);
}

.na-insight-text {
    color: var(--na-light-text);
}

/* =================== Cases Section =================== */
.na-cases {
    padding: 4rem 0;
    background-color: var(--na-bg);
}

.na-cases-header {
    text-align: center;
    margin-bottom: 4rem;
}

.na-cases-carousel {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    overflow: hidden;
}

.na-cases-slides {
    display: flex;
    transition: transform 0.5s ease;
}

.na-case-slide {
    flex: 0 0 100%;
    padding: 0 1rem;
}

.na-case-card {
    display: flex;
    flex-wrap: wrap;
    background-color: var(--na-light-bg);
    border-radius: var(--na-radius-lg);
    overflow: hidden;
    box-shadow: var(--na-shadow);
}

.na-case-img {
    flex: 1;
    min-width: 300px;
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
}

.na-case-content {
    flex: 1;
    min-width: 300px;
    padding: 2.5rem;
}

.na-case-industry {
    display: inline-block;
    background-color: var(--na-primary);
    color: white;
    font-size: 0.75rem;
    text-transform: uppercase;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.na-case-title {
    margin-bottom: 1rem;
}

.na-case-text {
    color: var(--na-light-text);
    margin-bottom: 1.5rem;
}

.na-case-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.na-case-stat {
    min-width: 120px;
}

.na-case-stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--na-primary);
    margin-bottom: 0.25rem;
}

.na-case-stat-label {
    font-size: 0.875rem;
    color: var(--na-light-text);
}

.na-case-footer {
    padding-top: 1.5rem;
    border-top: 1px solid var(--na-border);
}

.na-case-client {
    display: flex;
    align-items: center;
}

.na-client-logo {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 1rem;
}

.na-client-info h4 {
    margin-bottom: 0.25rem;
}

.na-client-info p {
    font-size: 0.875rem;
    color: var(--na-light-text);
}

.na-cases-nav {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 1rem;
    transform: translateY(-50%);
    z-index: 1;
}

.na-cases-arrow {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--na-bg);
    color: var(--na-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--na-shadow);
    transition: var(--na-transition);
}

.na-cases-arrow:hover {
    background-color: var(--na-primary);
    color: white;
}

.na-cases-indicators {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

.na-case-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--na-border);
    margin: 0 0.25rem;
    cursor: pointer;
    transition: var(--na-transition);
}

.na-case-indicator.active {
    background-color: var(--na-primary);
}

/* =================== Process Section =================== */
.na-process {
    padding: 4rem 0;
    background-color: var(--na-light-bg);
}

.na-process-header {
    text-align: center;
    margin-bottom: 4rem;
}

.na-process-steps {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.na-process-step {
    flex: 1;
    min-width: 250px;
    max-width: 300px;
    text-align: center;
    padding: 1.5rem;
    position: relative;
}

.na-process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 85px;
    right: 0;
    width: 100%;
    height: 2px;
    background-color: var(--na-border);
}

.na-process-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: var(--na-bg);
    color: var(--na-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1.5rem;
    position: relative;
    z-index: 1;
    box-shadow: var(--na-shadow);
}

.na-process-step:hover .na-process-icon {
    background-color: var(--na-primary);
    color: white;
    transform: scale(1.1);
}

.na-process-title {
    margin-bottom: 1rem;
}

.na-process-text {
    color: var(--na-light-text);
}

.na-process-cta {
    text-align: center;
    margin-top: 3rem;
}

@media (max-width: 768px) {
    .na-process-step::after {
        display: none;
    }
    
    .na-banner-title {
        font-size: 3rem;
    }
    
    .na-banner-subtitle {
        font-size: 1.25rem;
    }
    
    .na-banner-data-cards {
        position: relative;
        bottom: 0;
        margin-top: 2rem;
    }
    
    .na-data-card {
        width: 100%;
        max-width: none;
    }
}