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

: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;
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-pill: 9999px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
    background: var(--canvas);
    color: var(--body);
    font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

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

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

h1, h2, h3, h4 {
    color: var(--ink);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.2;
}
h1 { font-size: 2.5rem; letter-spacing: -0.03em; line-height: 1.1; }
h2 { font-size: 2rem; letter-spacing: -0.02em; }
h3 { font-size: 1.375rem; letter-spacing: -0.01em; line-height: 1.25; }
h4 { font-size: 1.125rem; font-weight: 600; letter-spacing: 0; }

p { line-height: 1.5; }

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

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.logo {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.01em;
    flex-shrink: 0;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--body);
    padding: 6px 12px;
    border-radius: var(--radius-md);
    transition: color 0.15s, background 0.15s;
    white-space: nowrap;
}
.nav-link:hover { color: var(--ink); background: var(--surface-strong); }
.nav-link--active { color: var(--ink); }

.nav-dropdown { position: relative; }
.nav-dropdown-menu {
    display: none;
    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: 260px;
    box-shadow: 0 4px 16px rgba(38, 37, 30, 0.08);
    z-index: 200;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu { display: flex; flex-direction: column; }
.nav-dropdown-link {
    font-size: 14px;
    color: var(--body);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: background 0.15s, color 0.15s;
}
.nav-dropdown-link:hover { background: var(--canvas); color: var(--ink); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

.hero {
    padding: 80px 0;
    border-bottom: 1px solid var(--hairline);
}
.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}
.hero-label {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    background: var(--surface-strong);
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    margin-bottom: 20px;
}
.hero h1 { margin-bottom: 20px; }
.hero-desc {
    font-size: 18px;
    color: var(--body);
    line-height: 1.55;
    margin-bottom: 32px;
}
.hero-meta {
    font-size: 13px;
    color: var(--muted);
}
.hero-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
}
.hero-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.section { padding: 80px 0; }
.section + .section { border-top: 1px solid var(--hairline); }
.section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
}
.section-title {
    font-size: 2rem;
    color: var(--ink);
    font-weight: 400;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}
.section-desc {
    font-size: 16px;
    color: var(--body);
    max-width: 600px;
    line-height: 1.5;
    margin-bottom: 48px;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: border-color 0.15s;
}
.card:hover { border-color: var(--hairline-strong); }
.card-img {
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 20px;
    border: 1px solid var(--hairline-soft);
}
.card-img img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}
.card-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
}
.card-title {
    font-size: 1.125rem;
    color: var(--ink);
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 10px;
    line-height: 1.35;
}
.card-excerpt {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 20px;
}
.card-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    border-bottom: 1px solid var(--hairline-strong);
    padding-bottom: 2px;
    transition: border-color 0.15s;
    display: inline-block;
}
.card-link:hover { border-color: var(--ink); }

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.feature-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 24px;
}
.feature-card-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--surface-strong);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 20px;
}
.feature-card h4 { margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--body); line-height: 1.5; }

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}
.two-col-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
}
.two-col-img img {
    width: 100%;
    height: 360px;
    object-fit: cover;
}
.two-col-content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.55;
    margin-bottom: 16px;
}
.two-col-content h2 { margin-bottom: 20px; }

.info-list { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }
.info-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: var(--body);
}
.info-list-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
    flex-shrink: 0;
    margin-top: 7px;
}

.contact-section { padding: 80px 0; }
.contact-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}
.contact-info h2 { margin-bottom: 16px; }
.contact-info p { font-size: 16px; color: var(--body); line-height: 1.55; margin-bottom: 24px; }
.contact-detail {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 24px;
}
.contact-detail-item {
    font-size: 14px;
    color: var(--body);
}
.contact-detail-item strong { color: var(--ink); }

.form-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 32px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 6px;
}
.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--surface-card);
    border: 1px solid var(--hairline-strong);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-size: 16px;
    color: var(--ink);
    font-family: inherit;
    transition: border-color 0.15s;
    outline: none;
    height: 44px;
}
.form-group textarea { height: auto; min-height: 120px; resize: vertical; }
.form-group input:focus,
.form-group textarea:focus { border-color: var(--ink); }
.form-group input.error,
.form-group textarea.error { border-color: var(--error); }
.field-error { font-size: 13px; color: var(--error); margin-top: 4px; display: none; }
.field-error.visible { display: block; }

.btn-primary {
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    border-radius: var(--radius-md);
    padding: 10px 18px;
    height: 40px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn-primary:hover { background: var(--primary-active); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.form-status {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    display: none;
}
.form-status.success {
    background: #e8f5f0;
    color: var(--success);
    border: 1px solid #b8ddd0;
    display: block;
}

.article-hero { padding: 64px 0 48px; border-bottom: 1px solid var(--hairline); }
.article-meta-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.article-category {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    background: var(--surface-strong);
    padding: 4px 10px;
    border-radius: var(--radius-pill);
}
.article-date { font-size: 13px; color: var(--muted); }
.article-hero h1 { max-width: 800px; margin-bottom: 20px; }
.article-hero-desc {
    font-size: 18px;
    color: var(--body);
    max-width: 700px;
    line-height: 1.55;
    margin-bottom: 32px;
}
.article-hero-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
    margin-top: 40px;
}
.article-hero-img img { width: 100%; height: 480px; object-fit: cover; }

.article-layout {
    padding: 64px 0;
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 64px;
    align-items: start;
}
.article-body { min-width: 0; }
.article-body h2 {
    font-size: 1.5rem;
    color: var(--ink);
    font-weight: 400;
    letter-spacing: -0.02em;
    margin: 40px 0 16px;
}
.article-body h2:first-child { margin-top: 0; }
.article-body h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--ink);
    margin: 28px 0 12px;
    letter-spacing: -0.01em;
}
.article-body p { margin-bottom: 16px; line-height: 1.6; color: var(--body); }
.article-body ul, .article-body ol { margin: 16px 0 16px 24px; }
.article-body li { margin-bottom: 8px; color: var(--body); line-height: 1.5; }
.article-body strong { color: var(--ink); font-weight: 600; }
.article-body a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--hairline-strong); }
.article-body a:hover { text-decoration-color: var(--ink); }
.article-body blockquote {
    border-left: 2px solid var(--hairline-strong);
    padding: 12px 20px;
    color: var(--muted);
    font-size: 15px;
    margin: 24px 0;
    background: var(--canvas-soft);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.article-body .data-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.article-body .data-table th {
    background: var(--surface-strong);
    color: var(--ink);
    font-weight: 600;
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--hairline);
}
.article-body .data-table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--hairline-soft);
    color: var(--body);
}
.article-body .data-table tr:last-child td { border-bottom: none; }
.article-body .info-box {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    margin: 24px 0;
}
.article-body .info-box-title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
}
.article-body .inline-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
    margin: 24px 0;
}
.article-body .inline-img img { width: 100%; height: 320px; object-fit: cover; }
.article-body .inline-img figcaption {
    font-size: 13px;
    color: var(--muted);
    padding: 10px 16px;
    background: var(--canvas-soft);
    border-top: 1px solid var(--hairline-soft);
}

.article-sidebar { position: sticky; top: 88px; }
.sidebar-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 16px;
}
.sidebar-title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}
.sidebar-toc { display: flex; flex-direction: column; gap: 8px; }
.sidebar-toc a {
    font-size: 14px;
    color: var(--body);
    padding: 4px 0;
    border-left: 2px solid var(--hairline);
    padding-left: 12px;
    transition: color 0.15s, border-color 0.15s;
}
.sidebar-toc a:hover { color: var(--ink); border-color: var(--ink); }
.sidebar-related a {
    display: block;
    font-size: 14px;
    color: var(--body);
    padding: 8px 0;
    border-bottom: 1px solid var(--hairline-soft);
    transition: color 0.15s;
}
.sidebar-related a:last-child { border-bottom: none; }
.sidebar-related a:hover { color: var(--ink); }
.sidebar-sources { display: flex; flex-direction: column; gap: 8px; }
.sidebar-sources a {
    font-size: 12px;
    color: var(--muted);
    text-decoration: underline;
    text-decoration-color: var(--hairline);
    word-break: break-all;
    transition: color 0.15s;
}
.sidebar-sources a:hover { color: var(--body); }

.page-hero { padding: 64px 0 48px; border-bottom: 1px solid var(--hairline); }
.page-hero h1 { max-width: 700px; margin-bottom: 16px; }
.page-hero-desc { font-size: 18px; color: var(--body); max-width: 600px; line-height: 1.55; }
.page-meta { font-size: 13px; color: var(--muted); margin-top: 12px; }
.page-content { padding: 64px 0; max-width: 800px; }
.page-content h2 { font-size: 1.5rem; margin: 40px 0 16px; font-weight: 400; letter-spacing: -0.02em; color: var(--ink); }
.page-content h2:first-child { margin-top: 0; }
.page-content h3 { font-size: 1.125rem; font-weight: 600; margin: 28px 0 12px; color: var(--ink); }
.page-content p { margin-bottom: 16px; line-height: 1.6; color: var(--body); }
.page-content ul, .page-content ol { margin: 16px 0 16px 24px; }
.page-content li { margin-bottom: 8px; color: var(--body); line-height: 1.5; }
.page-content a { color: var(--ink); text-decoration: underline; }

.site-footer {
    background: var(--canvas);
    border-top: 1px solid var(--hairline);
    padding: 64px 0 0;
}
.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--hairline);
}
.footer-brand {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 12px;
}
.footer-tagline { font-size: 14px; color: var(--body); line-height: 1.5; }
.footer-heading {
    display: block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}
.footer-link {
    display: block;
    font-size: 14px;
    color: var(--body);
    margin-bottom: 8px;
    transition: color 0.15s;
}
.footer-link:hover { color: var(--ink); }
.footer-bottom {
    padding: 24px 0;
}
.footer-bottom .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}
.footer-copy { font-size: 13px; color: var(--muted); }
.footer-legal-links { display: flex; gap: 16px; }
.footer-legal-links .footer-link { margin-bottom: 0; }

.cookie-banner {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 48px);
    max-width: 700px;
    background: var(--ink);
    color: var(--canvas);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    z-index: 1000;
    box-shadow: 0 8px 32px rgba(38, 37, 30, 0.2);
}
.cookie-text { font-size: 14px; color: var(--canvas-soft); line-height: 1.5; }
.cookie-text a { color: var(--canvas); text-decoration: underline; }
.cookie-actions { display: flex; gap: 8px; flex-shrink: 0; }
.cookie-btn {
    height: 36px;
    padding: 0 14px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: opacity 0.15s;
}
.cookie-btn:hover { opacity: 0.85; }
.cookie-btn-accept { background: var(--on-primary); color: var(--ink); }
.cookie-btn-reject { background: transparent; color: var(--canvas-soft); border: 1px solid rgba(255,255,255,0.2) !important; }
.cookie-banner.hidden { display: none; }

.disclaimer-bar {
    background: var(--canvas-soft);
    border-bottom: 1px solid var(--hairline);
    padding: 8px 0;
    text-align: center;
    font-size: 12px;
    color: var(--muted);
}

@media (max-width: 1024px) {
    .cards-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .article-layout { grid-template-columns: 1fr; }
    .article-sidebar { position: static; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    h1 { font-size: 1.875rem; }
    h2 { font-size: 1.5rem; }
    .hero-inner { grid-template-columns: 1fr; gap: 40px; }
    .two-col { grid-template-columns: 1fr; gap: 40px; }
    .contact-inner { grid-template-columns: 1fr; gap: 40px; }
    .cards-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; gap: 32px; }
    .nav-toggle { display: flex; }
    .main-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--canvas);
        border-bottom: 1px solid var(--hairline);
        flex-direction: column;
        align-items: stretch;
        padding: 12px;
        gap: 2px;
    }
    .main-nav.open { display: flex; }
    .nav-dropdown-menu { position: static; box-shadow: none; border: none; background: var(--canvas-soft); }
    .nav-dropdown:hover .nav-dropdown-menu { display: none; }
    .nav-dropdown.open .nav-dropdown-menu { display: flex; }
    .cookie-banner { flex-direction: column; align-items: flex-start; bottom: 16px; }
    .article-hero-img img { height: 280px; }
    .hero-image img { height: 260px; }
    .two-col-img img { height: 240px; }
    .article-layout { padding: 40px 0; }
    .section { padding: 56px 0; }
    .hero { padding: 56px 0; }
}

@media (max-width: 640px) {
    .footer-bottom .container { flex-direction: column; align-items: flex-start; }
    .footer-legal-links { flex-wrap: wrap; }
}