:root {
    --color-primary: #0d47a1;
    --color-secondary: #e91e63;
    --color-accent: #ffc107;
    --color-dark: #1a1a2e;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-bg: #f8f9fa;
    --color-white: #ffffff;
    --color-border: #e0e0e0;
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --max-width: 900px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
}

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

html, body {
    overflow-x: hidden;
    font-family: var(--font-main);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

img, video, iframe, svg, canvas {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Article Main Layout */
.article-main {
    width: 100%;
    max-width: 100%;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

/* Hero Section */
.article-hero {
    position: relative;
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) var(--spacing-md);
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    overflow: hidden;
}

.hero-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #0d1b2a;
    opacity: 0.9;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.hero-category {
    display: inline-block;
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-size: clamp(1.8rem, 5vw, 3rem);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
    font-weight: 800;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: rgba(255,255,255,0.8);
    margin-bottom: var(--spacing-lg);
    font-weight: 300;
}

.hero-meta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
}

.meta-date::before,
.meta-read::before {
    content: "•";
    margin-right: var(--spacing-xs);
}

.hero-visual {
    display: none;
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.3;
}

/* Article Wrapper */
.article-wrapper {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
    background-color: var(--color-white);
}

/* Intro Section */
.article-intro {
    margin-bottom: var(--spacing-xl);
}

.intro-block {
    max-width: 700px;
    margin: 0 auto;
}

.lead {
    font-size: 1.35rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    font-weight: 300;
}

.disclaimer-banner {
    background-color: #e3f2fd;
    border-left: 4px solid var(--color-primary);
    padding: var(--spacing-md);
    margin-top: var(--spacing-lg);
    border-radius: 0 8px 8px 0;
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.disclaimer-banner p {
    font-size: 0.9rem;
    color: var(--color-text);
    line-height: 1.5;
    margin: 0;
}

/* Section Headers */
.section-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
    color: var(--color-dark);
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--color-secondary);
}

.section-title.centered {
    text-align: center;
}

.section-title.centered::after {
    left: 50%;
    transform: translateX(-50%);
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    font-size: 1.1rem;
}

/* Timeline Section */
.timeline-section {
    margin-bottom: var(--spacing-xl);
}

.timeline-container {
    position: relative;
    padding-left: 30px;
}

.timeline-container::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--color-border);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
}

.timeline-marker {
    position: absolute;
    left: -26px;
    top: 5px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 3px solid var(--color-white);
    box-shadow: 0 0 0 2px var(--color-border);
}

.timeline-marker.marker-blue {
    background-color: var(--color-primary);
}

.timeline-marker.marker-pink {
    background-color: var(--color-secondary);
}

.timeline-marker.marker-yellow {
    background-color: var(--color-accent);
}

.timeline-content {
    background-color: var(--color-white);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.timeline-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
    background-color: var(--color-bg);
}

.timeline-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.timeline-text {
    padding: var(--spacing-md);
}

.timeline-era {
    display: inline-block;
    background-color: var(--color-accent);
    color: var(--color-dark);
    padding: 0.25rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 4px;
    margin-bottom: var(--spacing-xs);
}

.timeline-title {
    font-size: 1.5rem;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-xs);
}

.timeline-text p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

/* Data Tables */
.data-table-wrapper,
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: var(--spacing-md) 0;
    border-radius: 8px;
    border: 1px solid var(--color-border);
}

.cinema-data-table,
.comparative-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
    background-color: var(--color-white);
}

.cinema-data-table caption,
.comparative-table caption {
    text-align: left;
    padding: var(--spacing-sm);
    font-weight: 600;
    color: var(--color-dark);
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.cinema-data-table th,
.cinema-data-table td,
.comparative-table th,
.comparative-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.cinema-data-table th,
.comparative-table th {
    background-color: #f5f5f5;
    font-weight: 600;
    color: var(--color-dark);
}

.cinema-data-table tr:hover,
.comparative-table tr:hover {
    background-color: #fafafa;
}

.highlight-box {
    background-color: #fce4ec;
    border-left: 4px solid var(--color-secondary);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    border-radius: 0 8px 8px 0;
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.highlight-box p {
    margin: 0;
    font-size: 0.95rem;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-md) 0;
}

.feature-list li {
    padding: 0.5rem 0 0.5rem 1.5rem;
    position: relative;
    border-bottom: 1px dashed var(--color-border);
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.9rem;
    width: 8px;
    height: 8px;
    background-color: var(--color-primary);
    border-radius: 50%;
}

/* Stats Section */
.stats-section {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xl) var(--spacing-md);
    margin: 0 calc(-1 * var(--spacing-md));
    margin-bottom: var(--spacing-xl);
}

.stats-section .section-title {
    color: var(--color-white);
    text-align: center;
}

.stats-section .section-title::after {
    background-color: var(--color-accent);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    max-width: 800px;
    margin: var(--spacing-lg) auto 0;
}

.stat-card {
    text-align: center;
    padding: var(--spacing-md);
    background-color: rgba(255,255,255,0.1);
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.2);
}

.stat-icon {
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Calculator Section */
.calculator-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: #fff8e1;
    border-radius: 16px;
    border: 2px solid var(--color-accent);
}

.calculator-container {
    max-width: 600px;
    margin: 0 auto;
}

.section-intro {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.calc-form {
    display: grid;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.calc-field {
    display: flex;
    flex-direction: column;
}

.calc-field label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-dark);
}

.calc-field input,
.calc-field select {
    padding: 0.75rem;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    background-color: var(--color-white);
    max-width: 100%;
}

.calc-field input:focus,
.calc-field select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.calc-result {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: 12px;
    border: 2px solid var(--color-accent);
}

.result-item {
    text-align: center;
    padding: var(--spacing-sm);
}

.result-item.result-highlight {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: 8px;
}

.result-label {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
    opacity: 0.8;
}

.result-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
}

/* Tips Section */
.tips-section {
    margin-bottom: var(--spacing-xl);
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.tip-card {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: 12px;
    border: 1px solid var(--color-border);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.tip-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.tip-icon {
    margin-bottom: var(--spacing-sm);
}

.tip-title {
    font-size: 1.2rem;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
}

.tip-card p {
    font-size: 0.95rem;
    color: var(--color-text);
    line-height: 1.6;
}

/* Quote Section */
.quote-section {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-xl) var(--spacing-md);
    background-color: var(--color-dark);
    position: relative;
    overflow: hidden;
    border-radius: 16px;
}

.quote-section::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 150px;
    color: rgba(255,255,255,0.1);
    font-family: Georgia, serif;
    line-height: 1;
}

.article-quote {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.article-quote p {
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    color: var(--color-white);
    font-style: italic;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    font-weight: 300;
}

.article-quote cite {
    color: var(--color-accent);
    font-style: normal;
    font-weight: 600;
    font-size: 0.95rem;
}

/* FAQ Section */
.faq-section {
    margin-bottom: var(--spacing-xl);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
}

.faq-question {
    font-size: 1.1rem;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    font-weight: 600;
    position: relative;
    padding-right: 30px;
}

.faq-answer {
    color: var(--color-text);
    line-height: 1.7;
}

.faq-answer p {
    margin: 0;
}

/* Conclusion Section */
.conclusion-section {
    background-color: #e8eaf6;
    padding: var(--spacing-xl) var(--spacing-md);
    margin: 0 calc(-1 * var(--spacing-md));
    border-top: 4px solid var(--color-primary);
}

.conclusion-content {
    max-width: 700px;
    margin: 0 auto;
}

.conclusion-content p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
    color: var(--color-text);
}

.share-box {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    text-align: center;
    margin-top: var(--spacing-xl);
    border: 2px dashed var(--color-secondary);
}

.share-box p {
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

.share-note {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .article-hero {
        min-height: auto;
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .hero-visual {
        display: none;
    }
    
    .article-wrapper {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .timeline-container {
        padding-left: 20px;
    }
    
    .timeline-marker {
        left: -16px;
        width: 12px;
        height: 12px;
    }
    
    .timeline-image {
        height: 200px;
    }
    
    .stats-section,
    .conclusion-section {
        margin: 0 calc(-1 * var(--spacing-sm));
        margin-bottom: var(--spacing-lg);
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .calc-result {
        grid-template-columns: 1fr;
    }
    
    .tips-grid {
        grid-template-columns: 1fr;
    }
    
    .cinema-data-table,
    .comparative-table {
        font-size: 0.85rem;
    }
    
    .cinema-data-table th,
    .cinema-data-table td,
    .comparative-table th,
    .comparative-table td {
        padding: 0.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.6rem;
    }
    
    .lead {
        font-size: 1.1rem;
    }
    
    .timeline-title {
        font-size: 1.2rem;
    }
    
    .tip-card {
        padding: var(--spacing-sm);
    }
    
    .disclaimer-banner {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}