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

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background-color: var(--canvas); color: var(--body); font-family: var(--font-sans); font-size: 16px; line-height: 1.5; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.site-nav { background: var(--canvas); border-bottom: 1px solid var(--hairline); height: 64px; position: sticky; top: 0; z-index: 100; }
.nav-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; height: 100%; display: flex; align-items: center; gap: 32px; }
.nav-logo { display: flex; align-items: center; gap: 8px; color: var(--ink); font-size: 16px; font-weight: 600; flex-shrink: 0; }
.logo-mark { display: flex; align-items: center; justify-content: center; width: 28px; height: 28px; background: var(--primary); color: var(--on-primary); font-weight: 600; font-size: 14px; border-radius: var(--radius-sm); }
.nav-menu { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-link { color: var(--body); font-size: 14px; font-weight: 500; padding: 6px 12px; border-radius: var(--radius-md); border: none; background: none; cursor: pointer; transition: color 0.15s, background 0.15s; display: flex; align-items: center; gap: 4px; }
.nav-link:hover { color: var(--ink); background: var(--surface-strong); }
.nav-dropdown { position: relative; }
.nav-dropdown-toggle svg { transition: transform 0.2s; }
.nav-dropdown.open .nav-dropdown-toggle svg { transform: rotate(180deg); }
.dropdown-menu { position: absolute; top: calc(100% + 8px); left: 0; background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--radius-lg); padding: 8px; min-width: 220px; display: none; box-shadow: 0 4px 16px rgba(38,37,30,0.08); }
.nav-dropdown.open .dropdown-menu { display: block; }
.dropdown-link { display: block; padding: 8px 12px; font-size: 14px; color: var(--body); border-radius: var(--radius-sm); transition: color 0.15s, background 0.15s; }
.dropdown-link:hover { color: var(--ink); background: var(--surface-strong); }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; margin-left: auto; }
.nav-hamburger span { display: block; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform 0.2s, opacity 0.2s; }

.hero { padding: 80px 0 64px; border-bottom: 1px solid var(--hairline); }
.hero-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.hero-badge { display: inline-flex; align-items: center; background: var(--surface-strong); color: var(--muted); font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; border-radius: var(--radius-pill); padding: 4px 12px; margin-bottom: 20px; }
.hero-title { color: var(--ink); font-size: 48px; font-weight: 400; line-height: 1.1; letter-spacing: -1.2px; margin-bottom: 20px; }
.hero-desc { color: var(--body); font-size: 18px; line-height: 1.6; margin-bottom: 24px; max-width: 480px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.hero-tag { display: inline-block; background: var(--surface-strong); color: var(--muted); font-size: 12px; font-weight: 600; letter-spacing: 0.5px; border-radius: var(--radius-pill); padding: 4px 12px; }
.hero-image-wrap { border-radius: var(--radius-xl); overflow: hidden; border: 1px solid var(--hairline); aspect-ratio: 4/3; }
.hero-image-wrap img { width: 100%; height: 100%; object-fit: cover; }

.section { padding: 80px 0; }
.section-label { display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.section-title { color: var(--ink); font-size: 36px; font-weight: 400; line-height: 1.2; letter-spacing: -0.72px; margin-bottom: 16px; }
.section-desc { color: var(--body); font-size: 16px; line-height: 1.6; max-width: 600px; margin-bottom: 48px; }
.section-divider { border: none; border-top: 1px solid var(--hairline); }

.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.article-card { background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--radius-lg); overflow: hidden; transition: border-color 0.2s; }
.article-card:hover { border-color: var(--hairline-strong); }
.article-card-img { aspect-ratio: 16/9; overflow: hidden; }
.article-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s; }
.article-card:hover .article-card-img img { transform: scale(1.03); }
.article-card-body { padding: 24px; }
.article-card-tag { display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--primary); margin-bottom: 8px; }
.article-card-title { color: var(--ink); font-size: 18px; font-weight: 600; line-height: 1.3; margin-bottom: 10px; }
.article-card-title a:hover { color: var(--primary); }
.article-card-excerpt { color: var(--body); font-size: 14px; line-height: 1.6; margin-bottom: 16px; }
.article-card-meta { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 8px; }

.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; }
.info-card { background: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--radius-lg); padding: 28px 24px; }
.info-card-icon { font-size: 24px; margin-bottom: 12px; }
.info-card-title { color: var(--ink); font-size: 16px; font-weight: 600; line-height: 1.4; margin-bottom: 8px; }
.info-card-text { color: var(--body); font-size: 14px; line-height: 1.6; }

.article-header { padding: 64px 0 48px; border-bottom: 1px solid var(--hairline); }
.article-header .container { max-width: 800px; }
.article-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); margin-bottom: 24px; }
.article-breadcrumb a { color: var(--muted); }
.article-breadcrumb a:hover { color: var(--ink); }
.article-breadcrumb-sep { color: var(--hairline-strong); }
.article-label { display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--primary); margin-bottom: 12px; }
.article-title { color: var(--ink); font-size: 40px; font-weight: 400; line-height: 1.15; letter-spacing: -1px; margin-bottom: 16px; }
.article-meta { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--muted); flex-wrap: wrap; }

.article-body { padding: 56px 0 80px; }
.article-body .container { max-width: 800px; }
.article-body h2 { color: var(--ink); font-size: 26px; font-weight: 400; line-height: 1.25; letter-spacing: -0.325px; margin: 48px 0 16px; }
.article-body h3 { color: var(--ink); font-size: 20px; font-weight: 600; line-height: 1.3; margin: 32px 0 12px; }
.article-body p { color: var(--body); font-size: 16px; line-height: 1.7; margin-bottom: 20px; }
.article-body ul, .article-body ol { margin-bottom: 20px; padding-left: 20px; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { color: var(--body); font-size: 16px; line-height: 1.7; margin-bottom: 6px; }
.article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--primary-active); }
.article-body strong { color: var(--body-strong); font-weight: 600; }

.article-img { margin: 32px 0; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--hairline); }
.article-img img { width: 100%; height: auto; }
.article-img figcaption { padding: 10px 16px; font-size: 13px; color: var(--muted); background: var(--canvas-soft); border-top: 1px solid var(--hairline-soft); font-family: var(--font-mono); }

.article-callout { background: var(--surface-card); border: 1px solid var(--hairline); border-left: 3px solid var(--primary); border-radius: var(--radius-md); padding: 20px 24px; margin: 28px 0; }
.article-callout p { margin: 0; font-size: 15px; }

.article-sources { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--hairline); }
.article-sources h3 { font-size: 13px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.article-sources ul { list-style: none; padding: 0; }
.article-sources li { font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.article-sources a { color: var(--muted); text-decoration: underline; }

.related-section { padding: 64px 0; background: var(--canvas-soft); border-top: 1px solid var(--hairline); }
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 32px; }

.contact-section { padding: 80px 0; }
.contact-wrap { max-width: 640px; margin: 0 auto; }
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 14px; font-weight: 500; color: var(--body-strong); margin-bottom: 6px; }
.form-input, .form-textarea { width: 100%; background: var(--surface-card); color: var(--ink); border: 1px solid var(--hairline-strong); border-radius: var(--radius-md); padding: 12px 16px; font-size: 16px; font-family: var(--font-sans); height: 44px; transition: border-color 0.15s; outline: none; }
.form-textarea { height: auto; min-height: 120px; resize: vertical; }
.form-input:focus, .form-textarea:focus { border-color: var(--primary); }
.form-input.error, .form-textarea.error { border-color: var(--error); }
.form-error { font-size: 13px; color: var(--error); margin-top: 4px; display: none; }
.btn-primary { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--primary); color: var(--on-primary); font-size: 14px; font-weight: 500; padding: 10px 20px; height: 40px; border-radius: var(--radius-md); border: none; cursor: pointer; transition: background 0.15s; }
.btn-primary:hover { background: var(--primary-active); }
.btn-primary:disabled { opacity: 0.65; cursor: not-allowed; }
.form-success { display: none; background: var(--surface-card); border: 1px solid var(--hairline); border-left: 3px solid var(--success); border-radius: var(--radius-md); padding: 20px 24px; color: var(--success); font-size: 15px; font-weight: 500; margin-top: 20px; }

.cookie-banner { position: fixed; bottom: 0; left: 0; right: 0; background: var(--surface-card); border-top: 1px solid var(--hairline); z-index: 200; padding: 16px 24px; }
.cookie-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; gap: 32px; flex-wrap: wrap; }
.cookie-text { flex: 1; min-width: 200px; }
.cookie-text strong { display: block; color: var(--ink); font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.cookie-text p { font-size: 13px; color: var(--body); line-height: 1.5; }
.cookie-text a { color: var(--primary); text-decoration: underline; }
.cookie-actions { display: flex; gap: 8px; flex-shrink: 0; }
.btn-cookie-accept { background: var(--primary); color: var(--on-primary); font-size: 14px; font-weight: 500; padding: 8px 18px; height: 36px; border-radius: var(--radius-md); border: none; cursor: pointer; transition: background 0.15s; }
.btn-cookie-accept:hover { background: var(--primary-active); }
.btn-cookie-reject { background: var(--surface-card); color: var(--body); font-size: 14px; font-weight: 500; padding: 8px 18px; height: 36px; border-radius: var(--radius-md); border: 1px solid var(--hairline-strong); cursor: pointer; }
.btn-cookie-reject:hover { background: var(--surface-strong); color: var(--ink); }

.page-header { padding: 64px 0 48px; border-bottom: 1px solid var(--hairline); }
.page-title { color: var(--ink); font-size: 36px; font-weight: 400; line-height: 1.2; letter-spacing: -0.72px; margin-bottom: 12px; }
.page-desc { color: var(--body); font-size: 18px; line-height: 1.6; max-width: 600px; }
.page-content { padding: 56px 0 80px; }
.page-content h2 { color: var(--ink); font-size: 22px; font-weight: 600; margin: 36px 0 12px; }
.page-content h3 { color: var(--ink); font-size: 18px; font-weight: 600; margin: 24px 0 10px; }
.page-content p { color: var(--body); font-size: 16px; line-height: 1.7; margin-bottom: 16px; }
.page-content ul { list-style: disc; padding-left: 20px; margin-bottom: 16px; }
.page-content li { color: var(--body); font-size: 16px; line-height: 1.7; margin-bottom: 6px; }
.page-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.page-update { font-size: 13px; color: var(--muted); margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--hairline); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; margin-bottom: 48px; }

.site-footer { background: var(--canvas); border-top: 1px solid var(--hairline); padding: 64px 0 32px; }
.footer-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-logo { display: inline-block; color: var(--ink); font-size: 16px; font-weight: 600; margin-bottom: 12px; }
.footer-tagline { color: var(--body); font-size: 14px; line-height: 1.6; margin-bottom: 8px; }
.footer-update { font-size: 13px; color: var(--muted); }
.footer-heading { color: var(--ink); font-size: 13px; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase; margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-link { color: var(--body); font-size: 14px; transition: color 0.15s; }
.footer-link:hover { color: var(--ink); }
.footer-disclaimer { font-size: 12px; color: var(--muted-soft); line-height: 1.5; margin-top: 16px; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-top: 24px; border-top: 1px solid var(--hairline); flex-wrap: wrap; gap: 12px; }
.footer-copy { font-size: 13px; color: var(--muted); }
.footer-legal { display: flex; gap: 16px; }

@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
    .footer-col.footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
    .nav-hamburger { display: flex; }
    .nav-menu { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--surface-card); border-bottom: 1px solid var(--hairline); padding: 16px; flex-direction: column; align-items: flex-start; gap: 4px; }
    .nav-menu.open { display: flex; }
    .nav-menu li { width: 100%; }
    .nav-link { width: 100%; justify-content: flex-start; }
    .dropdown-menu { position: static; box-shadow: none; border: none; background: var(--canvas-soft); border-radius: var(--radius-sm); padding: 4px 0 4px 12px; }
    .hero-inner { grid-template-columns: 1fr; gap: 32px; }
    .hero-title { font-size: 32px; letter-spacing: -0.7px; }
    .hero-image-wrap { order: -1; }
    .section-title { font-size: 26px; }
    .cards-grid { grid-template-columns: 1fr; }
    .info-grid { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .about-grid { grid-template-columns: 1fr; }
    .article-title { font-size: 28px; }
    .cookie-inner { flex-direction: column; gap: 16px; }
}
@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
    .cards-grid { grid-template-columns: 1fr; }
}