:root {
    --color-canvas: #f7f7f4;
    --color-canvas-soft: #fafaf7;
    --color-surface-card: #ffffff;
    --color-surface-strong: #e6e5e0;
    --color-ink: #26251e;
    --color-body: #5a5852;
    --color-muted: #807d72;
    --color-muted-soft: #a09c92;
    --color-primary: #f54e00;
    --color-primary-active: #d04200;
    --color-on-primary: #ffffff;
    --color-hairline: #e6e5e0;
    --color-hairline-soft: #efeee8;
    --color-hairline-strong: #cfcdc4;
    --color-success: #1f8a65;
    --color-error: #cf2d56;
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-pill: 9999px;
    --space-xxs: 4px;
    --space-xs: 8px;
    --space-sm: 12px;
    --space-base: 16px;
    --space-md: 20px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-xxl: 48px;
    --space-section: 80px;
    --font-sans: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    background: var(--color-canvas);
    color: var(--color-body);
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--color-ink); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.site-nav {
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
    position: sticky;
    top: 0;
    z-index: 100;
    height: 64px;
    display: flex;
    align-items: center;
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: var(--space-xl);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    text-decoration: none;
    flex-shrink: 0;
}

.logo-mark {
    width: 32px;
    height: 32px;
    background: var(--color-ink);
    color: var(--color-canvas);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.logo-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-ink);
    letter-spacing: -0.2px;
}

.logo-dot { color: var(--color-primary); }

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xxs);
    flex-wrap: nowrap;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-body);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
    transition: color 0.15s, background 0.15s;
    white-space: nowrap;
}

.nav-link:hover { color: var(--color-ink); background: var(--color-hairline-soft); }
.nav-link--active { color: var(--color-ink); background: var(--color-surface-strong); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-md);
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-ink);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.hero {
    padding: var(--space-section) 0 60px;
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
}

.hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.hero-label {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--color-muted);
    background: var(--color-surface-strong);
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    margin-bottom: var(--space-lg);
}

.hero-title {
    font-size: 56px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -1.5px;
    color: var(--color-ink);
    max-width: 800px;
    margin-bottom: var(--space-lg);
}

.hero-desc {
    font-size: 18px;
    color: var(--color-body);
    max-width: 560px;
    line-height: 1.6;
    margin-bottom: var(--space-xxl);
}

.hero-meta {
    font-size: 13px;
    color: var(--color-muted);
    display: flex;
    align-items: center;
    gap: var(--space-base);
    flex-wrap: wrap;
}

.hero-meta-dot { color: var(--color-hairline-strong); }

.hero-image-wrap {
    margin-top: var(--space-section);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-hairline);
    max-height: 480px;
}

.hero-image-wrap img {
    width: 100%;
    height: 480px;
    object-fit: cover;
}

.section {
    padding: var(--space-section) 0;
}

.section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--space-base);
    display: block;
}

.section-title {
    font-size: 36px;
    font-weight: 400;
    letter-spacing: -0.72px;
    color: var(--color-ink);
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

.section-desc {
    font-size: 16px;
    color: var(--color-body);
    max-width: 560px;
    line-height: 1.6;
    margin-bottom: var(--space-xxl);
}

.section-divider {
    border: none;
    border-top: 1px solid var(--color-hairline);
    margin: 0;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-xxl);
}

.article-card {
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color 0.15s;
    display: flex;
    flex-direction: column;
}

.article-card:hover { border-color: var(--color-hairline-strong); }

.article-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.article-card-body {
    padding: var(--space-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.article-card-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--color-muted);
}

.article-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-ink);
    line-height: 1.35;
}

.article-card-excerpt {
    font-size: 14px;
    color: var(--color-body);
    line-height: 1.55;
    flex: 1;
}

.article-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-base) var(--space-lg);
    border-top: 1px solid var(--color-hairline-soft);
}

.article-card-date {
    font-size: 13px;
    color: var(--color-muted);
}

.link-arrow {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-ink);
    display: flex;
    align-items: center;
    gap: 4px;
}

.link-arrow::after {
    content: '→';
    transition: transform 0.15s;
}

.article-card:hover .link-arrow::after { transform: translateX(3px); }

.article-page {
    padding: var(--space-section) 0;
}

.article-page-inner {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.article-page-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--space-base);
    display: block;
}

.article-page-title {
    font-size: 46px;
    font-weight: 400;
    letter-spacing: -1.2px;
    color: var(--color-ink);
    line-height: 1.1;
    margin-bottom: var(--space-lg);
}

.article-page-meta {
    font-size: 13px;
    color: var(--color-muted);
    display: flex;
    gap: var(--space-base);
    flex-wrap: wrap;
    margin-bottom: var(--space-xxl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--color-hairline);
}

.article-page-image {
    width: 100%;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-xxl);
    border: 1px solid var(--color-hairline);
    height: 380px;
    object-fit: cover;
}

.article-content h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    color: var(--color-ink);
    margin: var(--space-xxl) 0 var(--space-base);
    line-height: 1.25;
}

.article-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-ink);
    margin: var(--space-xl) 0 var(--space-sm);
    line-height: 1.3;
}

.article-content p {
    font-size: 16px;
    color: var(--color-body);
    line-height: 1.7;
    margin-bottom: var(--space-base);
}

.article-content ul, .article-content ol {
    list-style: none;
    margin-bottom: var(--space-base);
    padding-left: var(--space-base);
}

.article-content ul li, .article-content ol li {
    font-size: 16px;
    color: var(--color-body);
    line-height: 1.7;
    margin-bottom: var(--space-xs);
    position: relative;
    padding-left: var(--space-md);
}

.article-content ul li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--color-muted);
}

.article-content ol { counter-reset: ol-counter; }

.article-content ol li::before {
    counter-increment: ol-counter;
    content: counter(ol-counter) '.';
    position: absolute;
    left: 0;
    color: var(--color-muted);
    font-size: 13px;
    font-weight: 600;
}

.info-box {
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline);
    border-left: 3px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin: var(--space-xl) 0;
}

.info-box p {
    margin-bottom: 0;
    font-size: 15px;
    color: var(--color-body);
}

.info-box strong { color: var(--color-ink); }

.facts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-base);
    margin: var(--space-xl) 0;
}

.fact-card {
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.fact-card-number {
    font-size: 32px;
    font-weight: 400;
    letter-spacing: -0.5px;
    color: var(--color-ink);
    margin-bottom: var(--space-xs);
}

.fact-card-label {
    font-size: 14px;
    color: var(--color-body);
    line-height: 1.4;
}

.contact-section {
    background: var(--color-canvas-soft);
    border-top: 1px solid var(--color-hairline);
    border-bottom: 1px solid var(--color-hairline);
    padding: var(--space-section) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xxl);
    align-items: start;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.contact-info h2 {
    font-size: 36px;
    font-weight: 400;
    letter-spacing: -0.72px;
    color: var(--color-ink);
    margin-bottom: var(--space-md);
}

.contact-info p {
    font-size: 16px;
    color: var(--color-body);
    line-height: 1.6;
    margin-bottom: var(--space-base);
}

.contact-detail {
    display: flex;
    gap: var(--space-sm);
    align-items: flex-start;
    margin-bottom: var(--space-sm);
    font-size: 14px;
    color: var(--color-body);
}

.contact-detail-label {
    font-weight: 600;
    color: var(--color-ink);
    min-width: 60px;
    font-size: 13px;
}

.contact-form {
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

.form-group {
    margin-bottom: var(--space-base);
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-ink);
    margin-bottom: var(--space-xs);
    letter-spacing: 0.2px;
}

.form-input {
    width: 100%;
    background: var(--color-canvas);
    border: 1px solid var(--color-hairline-strong);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    height: 44px;
    font-family: var(--font-sans);
    font-size: 15px;
    color: var(--color-ink);
    transition: border-color 0.15s;
    outline: none;
}

.form-input::placeholder { color: var(--color-muted-soft); }
.form-input:focus { border-color: var(--color-ink); }

textarea.form-input {
    height: auto;
    resize: vertical;
    min-height: 100px;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-on-primary);
    border: none;
    border-radius: var(--radius-md);
    padding: 10px 18px;
    height: 40px;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

.btn-primary:hover { background: var(--color-primary-active); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.form-message {
    margin-top: var(--space-base);
    padding: var(--space-sm) var(--space-base);
    border-radius: var(--radius-md);
    font-size: 14px;
    display: none;
}

.form-message.success {
    background: #e8f5f0;
    color: var(--color-success);
    border: 1px solid #c0e0d4;
    display: block;
}

.form-message.error {
    background: #fce8ec;
    color: var(--color-error);
    border: 1px solid #f0c0ca;
    display: block;
}

.site-footer {
    background: var(--color-canvas);
    border-top: 1px solid var(--color-hairline);
    padding: 64px 0 48px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xxl);
}

.footer-tagline {
    font-size: 14px;
    color: var(--color-muted);
    margin-top: var(--space-sm);
    line-height: 1.5;
    max-width: 240px;
}

.footer-heading {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-ink);
    margin-bottom: var(--space-base);
    letter-spacing: 0.2px;
}

.footer-links { display: flex; flex-direction: column; gap: var(--space-xs); }
.footer-link { font-size: 14px; color: var(--color-body); transition: color 0.15s; }
.footer-link:hover { color: var(--color-ink); }

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-xl) 0;
    border-top: 1px solid var(--color-hairline-soft);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.footer-copy {
    font-size: 13px;
    color: var(--color-muted);
}

.page-header {
    padding: var(--space-xxl) 0 var(--space-section);
    border-bottom: 1px solid var(--color-hairline);
}

.page-header-inner {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.page-title {
    font-size: 46px;
    font-weight: 400;
    letter-spacing: -1.2px;
    color: var(--color-ink);
    line-height: 1.1;
    margin-bottom: var(--space-base);
}

.page-subtitle {
    font-size: 18px;
    color: var(--color-body);
    line-height: 1.6;
}

.page-content {
    max-width: 760px;
    margin: 0 auto;
    padding: var(--space-section) var(--space-xl);
}

.page-content h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    color: var(--color-ink);
    margin: var(--space-xxl) 0 var(--space-base);
}

.page-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-ink);
    margin: var(--space-xl) 0 var(--space-sm);
}

.page-content p {
    font-size: 16px;
    color: var(--color-body);
    line-height: 1.7;
    margin-bottom: var(--space-base);
}

.page-content ul, .page-content ol {
    margin-bottom: var(--space-base);
    padding-left: var(--space-base);
}

.page-content li {
    font-size: 16px;
    color: var(--color-body);
    line-height: 1.7;
    margin-bottom: var(--space-xs);
}

.page-content a {
    color: var(--color-ink);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-xxl);
    align-items: start;
}

.about-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-base);
}

.sidebar-card {
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.sidebar-card h4 {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.2px;
    color: var(--color-ink);
    margin-bottom: var(--space-sm);
}

.sidebar-card p, .sidebar-card li {
    font-size: 14px;
    color: var(--color-body);
    line-height: 1.5;
}

.sidebar-card ul { padding-left: var(--space-base); list-style: disc; }

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-ink);
    color: var(--color-canvas);
    padding: var(--space-lg) var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xl);
    z-index: 9999;
    border-top: 1px solid #3a3930;
    flex-wrap: wrap;
}

.cookie-text {
    font-size: 14px;
    color: #c5c4bc;
    max-width: 640px;
    line-height: 1.5;
}

.cookie-text a {
    color: var(--color-canvas);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.cookie-actions { display: flex; gap: var(--space-sm); flex-shrink: 0; }

.btn-cookie-accept {
    background: var(--color-primary);
    color: var(--color-on-primary);
    border: none;
    border-radius: var(--radius-md);
    padding: 8px 16px;
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-cookie-accept:hover { background: var(--color-primary-active); }

.btn-cookie-reject {
    background: transparent;
    color: #c5c4bc;
    border: 1px solid #4a4940;
    border-radius: var(--radius-md);
    padding: 8px 16px;
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s;
}

.btn-cookie-reject:hover { border-color: #7a7970; color: var(--color-canvas); }

.disclaimer-bar {
    background: var(--color-canvas-soft);
    border-top: 1px solid var(--color-hairline);
    padding: var(--space-sm) 0;
    text-align: center;
}

.disclaimer-bar p {
    font-size: 12px;
    color: var(--color-muted);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 13px;
    color: var(--color-muted);
    padding: var(--space-base) 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--space-xl);
    padding-right: var(--space-xl);
}

.breadcrumb a { color: var(--color-muted); }
.breadcrumb a:hover { color: var(--color-ink); }
.breadcrumb-sep { color: var(--color-hairline-strong); }

.related-section {
    background: var(--color-canvas-soft);
    border-top: 1px solid var(--color-hairline);
    padding: var(--space-section) 0;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-xxl);
}

.related-card {
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: border-color 0.15s;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.related-card:hover { border-color: var(--color-hairline-strong); }

.related-card-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--color-muted);
}

.related-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-ink);
    line-height: 1.35;
}

.related-card-desc {
    font-size: 14px;
    color: var(--color-body);
    line-height: 1.5;
    flex: 1;
}

@media (max-width: 1024px) {
    .articles-grid { grid-template-columns: repeat(2, 1fr); }
    .facts-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--color-canvas);
        border-bottom: 1px solid var(--color-hairline);
        flex-direction: column;
        padding: var(--space-base);
        gap: var(--space-xxs);
    }
    .nav-links.open { display: flex; }
    .nav-toggle { display: flex; }
    .hero-title { font-size: 36px; letter-spacing: -1px; }
    .page-title { font-size: 32px; }
    .article-page-title { font-size: 32px; }
    .section-title { font-size: 26px; }
    .container { padding: 0 var(--space-base); }
    .nav-inner { padding: 0 var(--space-base); }
    .hero-inner { padding: 0 var(--space-base); }
    .contact-grid { padding: 0 var(--space-base); }
}

@media (max-width: 640px) {
    .articles-grid { grid-template-columns: 1fr; }
    .facts-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: 1fr; }
    .cookie-banner { flex-direction: column; align-items: flex-start; }
    .footer-bottom { flex-direction: column; }
    .hero-image-wrap img { height: 220px; }
}